{ "version": "2.2", "instance": { "d16063dncsrs.htm": { "nsprefix": "nylif", "nsuri": "http://www.dfinview.com/20260602", "dts": { "schema": { "local": [ "cik0000787441-20260602.xsd" ], "remote": [ "http://www.xbrl.org/2003/xbrl-instance-2003-12-31.xsd", "http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd", "http://www.xbrl.org/2003/xl-2003-12-31.xsd", "http://www.xbrl.org/2003/xlink-2003-12-31.xsd", "http://www.xbrl.org/2005/xbrldt-2005.xsd", "http://www.xbrl.org/2006/ref-2006-02-27.xsd", "http://www.xbrl.org/lrr/arcrole/deprecated-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/negated-2009-12-16.xsd", "http://www.xbrl.org/lrr/role/reference-2009-12-16.xsd", "https://www.xbrl.org/2020/extensible-enumerations-2.0.xsd", "https://www.xbrl.org/dtr/type/2020-01-21/types.xsd", "https://www.xbrl.org/dtr/type/2024-01-31/types.xsd", "https://xbrl.fasb.org/srt/2025/elts/srt-2025.xsd", "https://xbrl.fasb.org/srt/2025/elts/srt-roles-2025.xsd", "https://xbrl.fasb.org/srt/2025/elts/srt-types-2025.xsd", "https://xbrl.fasb.org/us-gaap/2025/elts/us-gaap-2025.xsd", "https://xbrl.fasb.org/us-gaap/2025/elts/us-roles-2025.xsd", "https://xbrl.fasb.org/us-gaap/2025/elts/us-types-2025.xsd", "https://xbrl.sec.gov/country/2025/country-2025.xsd", "https://xbrl.sec.gov/country/2025/country-2025_def.xsd", "https://xbrl.sec.gov/dei/2025/dei-2025.xsd", "https://xbrl.sec.gov/oef/2025/oef-2025.xsd", "https://xbrl.sec.gov/oef/2025/oef-2025_lab.xsd", "https://xbrl.sec.gov/oef/2025/oef-sr-2025.xsd", "https://xbrl.sec.gov/stpr/2025/stpr-2025.xsd" ] }, "inline": { "local": [ "d16063dncsrs.htm" ] } }, "keyStandard": 33, "keyCustom": 0, "axisStandard": 9, "axisCustom": 0, "memberStandard": 38, "memberCustom": 220, "hidden": { "total": 1114, "http://xbrl.sec.gov/oef/2025": 1110, "http://xbrl.sec.gov/dei/2025": 4 }, "contextCount": 2641, "entityCount": 1, "segmentCount": 258, "elementCount": 381, "unitCount": 3, "baseTaxonomies": { "http://xbrl.sec.gov/oef/2025": 4709, "http://fasb.org/us-gaap/2025": 118, "http://xbrl.sec.gov/dei/2025": 67 }, "report": { "R1": { "role": "http://xbrl.sec.gov/oef/role/NcsrCover", "longName": "030000 - Disclosure - Form N-CSR Cover", "shortName": "Form N-CSR Cover", "isDefault": "true", "groupType": "disclosure", "subGroupType": "", "menuCat": "Cover", "order": "1", "firstAnchor": { "contextRef": "DefaultContext", "name": "dei:EntityRegistrantName", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "d16063dncsrs.htm", "first": true }, "uniqueAnchor": null }, "R2": { "role": "http://xbrl.sec.gov/oef/role/ShareholderReport", "longName": "030001 - Disclosure - Shareholder Report", "shortName": "Shareholder Report", "isDefault": "false", "groupType": "disclosure", "subGroupType": "", "menuCat": "Notes", "order": "2", "firstAnchor": { "contextRef": "DefaultContext", "name": "dei:EntityRegistrantName", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "d16063dncsrs.htm", "first": true }, "uniqueAnchor": { "contextRef": "D20251031_20260430_C000060790Member", "name": "oef:FundName", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "d16063dncsrs.htm", "unique": true } }, "R3": { "role": "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails", "longName": "040010 - Disclosure - Shareholder Report, Line Graph (Details)", "shortName": "Shareholder Report, Line Graph (Details)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "3", "firstAnchor": { "contextRef": "D20251031_20260430_C000060790Member", "name": "oef:LineGraphAndTableMeasureName", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "td", "tr", "table", "oef:AvgAnnlRtrTableTextBlock", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "d16063dncsrs.htm", "first": true }, "uniqueAnchor": null }, "R4": { "role": "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "longName": "040015 - Disclosure - Shareholder Report, Average Annual Return (Details)", "shortName": "Shareholder Report, Average Annual Return (Details)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "4", "firstAnchor": { "contextRef": "D20251031_20260430_C000060790Member", "name": "oef:LineGraphAndTableMeasureName", "unitRef": null, "xsiNil": "false", "lang": "en-US", "decimals": null, "ancestors": [ "td", "tr", "table", "oef:AvgAnnlRtrTableTextBlock", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "d16063dncsrs.htm", "first": true }, "uniqueAnchor": { "contextRef": "D20251031_20260430_C000060790Member", "name": "oef:AvgAnnlRtrPct", "unitRef": "pure", "xsiNil": "false", "lang": null, "decimals": "4", "ancestors": [ "td", "tr", "table", "oef:AvgAnnlRtrTableTextBlock", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "d16063dncsrs.htm", "unique": true } }, "R5": { "role": "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "longName": "040020 - Disclosure - Shareholder Report, Holdings (Details)", "shortName": "Shareholder Report, Holdings (Details)", "isDefault": "false", "groupType": "disclosure", "subGroupType": "details", "menuCat": "Details", "order": "5", "firstAnchor": { "contextRef": "TI20260430_C000060790Member_FHLMCSTACRTrust8561501Due9254772549Member", "name": "oef:PctOfNav", "unitRef": "pure", "xsiNil": "false", "lang": null, "decimals": "4", "ancestors": [ "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "d16063dncsrs.htm", "first": true, "unique": true }, "uniqueAnchor": { "contextRef": "TI20260430_C000060790Member_FHLMCSTACRTrust8561501Due9254772549Member", "name": "oef:PctOfNav", "unitRef": "pure", "xsiNil": "false", "lang": null, "decimals": "4", "ancestors": [ "td", "tr", "table", "ix:continuation", "ix:continuation", "div", "div", "div", "div", "div", "div", "div", "div", "div", "div", "body", "html" ], "reportCount": 1, "baseRef": "d16063dncsrs.htm", "first": true, "unique": true } } }, "tag": { "stpr_AL": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/stpr/2025", "localname": "AL", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "ALABAMA" } } }, "auth_ref": [] }, "country_AR": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "AR", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "ARGENTINA" } } }, "auth_ref": [] }, "oef_AccmVal": { "xbrltype": "monetaryItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AccmVal", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Accumulated Value" } } }, "auth_ref": [ "r54" ] }, "oef_AccountValueLineItems": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AccountValueLineItems", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Account Value [Line Items]" } } }, "auth_ref": [ "r53" ] }, "oef_AccountValueTable": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AccountValueTable", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Account Value [Table]" } } }, "auth_ref": [ "r53" ] }, "oef_AccountValueTableAbstract": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AccountValueTableAbstract", "lang": { "en-us": { "role": { "label": "Account Value Table [Abstract]" } } }, "auth_ref": [ "r53" ] }, "oef_AccountantChngDate": { "xbrltype": "dateItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AccountantChngDate", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Accountant Change Date" } } }, "auth_ref": [ "r77" ] }, "oef_AccountantChngDisagreementsTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AccountantChngDisagreementsTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Accountant Change Disagreements [Text Block]" } } }, "auth_ref": [ "r78" ] }, "oef_AccountantChngStatementTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AccountantChngStatementTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Accountant Change Statement [Text Block]" } } }, "auth_ref": [ "r77" ] }, "oef_AdditionalIndexAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AdditionalIndexAxis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Additional Index [Axis]" } } }, "auth_ref": [ "r53" ] }, "oef_AdditionalIndexDomain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AdditionalIndexDomain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Additional Index [Domain]" } } }, "auth_ref": [ "r53" ] }, "oef_AddlFundStatisticsSignificanceOrLimitsTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AddlFundStatisticsSignificanceOrLimitsTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Additional Fund Statistics Significance or Limits [Text Block]" } } }, "auth_ref": [ "r67" ] }, "oef_AddlFundStatisticsTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AddlFundStatisticsTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Additional Fund Statistics [Text Block]" } } }, "auth_ref": [ "r66" ] }, "oef_AddlInfoEmail": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AddlInfoEmail", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Additional Information Email" } } }, "auth_ref": [ "r45" ] }, "oef_AddlInfoPhoneNumber": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AddlInfoPhoneNumber", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Additional Information Phone Number" } } }, "auth_ref": [ "r45" ] }, "oef_AddlInfoTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AddlInfoTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Additional Information [Text Block]" } } }, "auth_ref": [ "r43" ] }, "oef_AddlInfoWebsite": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AddlInfoWebsite", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Additional Information Website" } } }, "auth_ref": [ "r45" ] }, "nylif_AdvancedEnergyIndustriesInc250Due91528Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "AdvancedEnergyIndustriesInc250Due91528Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Advanced Energy Industries Inc 2 50 due 9 15 28 [Member]" } } }, "auth_ref": [] }, "oef_AdvisoryFeesPaidAmt": { "xbrltype": "monetaryItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AdvisoryFeesPaidAmt", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Advisory Fees Paid, Amount" } } }, "auth_ref": [ "r66" ] }, "nylif_AerospaceAndDefenseMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "AerospaceAndDefenseMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Aerospace And Defense [Member]" } } }, "auth_ref": [] }, "nylif_AlphabetIncClassCMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "AlphabetIncClassCMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Alphabet Inc Class C [Member]" } } }, "auth_ref": [] }, "nylif_AmazonComIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "AmazonComIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Amazon com Inc [Member]" } } }, "auth_ref": [] }, "dei_AmendmentDescription": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "AmendmentDescription", "presentation": [ "http://xbrl.sec.gov/oef/role/NcsrCover", "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Amendment Description", "documentation": "Description of changes contained within amended document." } } }, "auth_ref": [] }, "dei_AmendmentFlag": { "xbrltype": "booleanItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "AmendmentFlag", "presentation": [ "http://xbrl.sec.gov/oef/role/NcsrCover", "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Amendment Flag", "documentation": "Boolean flag that is true when the XBRL content amends previously-filed or accepted submission." } } }, "auth_ref": [] }, "nylif_AmphenolCorpClassAMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "AmphenolCorpClassAMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Amphenol Corp Class A [Member]" } } }, "auth_ref": [] }, "nylif_AnalogDevicesIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "AnalogDevicesIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Analog Devices Inc [Member]" } } }, "auth_ref": [] }, "oef_AnnlOrSemiAnnlStatementTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AnnlOrSemiAnnlStatementTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Annual or Semi-Annual Statement [Text Block]" } } }, "auth_ref": [ "r42" ] }, "nylif_AppleIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "AppleIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Apple Inc [Member]" } } }, "auth_ref": [] }, "nylif_ArgentinaGovernmentBond0754125Due79307946Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "ArgentinaGovernmentBond0754125Due79307946Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Argentina Government Bond 0 75 4 125 due 7 9 30 7 9 46 [Member]" } } }, "auth_ref": [] }, "us-gaap_AssetBackedSecuritiesMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AssetBackedSecuritiesMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Asset-Backed Securities [Member]", "documentation": "Securities that are primarily serviced by the cash flows of a discrete pool of receivables or other financial assets for example, but not limited to, credit card receivables, car loans, recreational vehicle loans, and mobile home loans." } } }, "auth_ref": [ "r24", "r26", "r30", "r87", "r89", "r90" ] }, "us-gaap_AssetsNet": { "xbrltype": "monetaryItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "AssetsNet", "crdr": "debit", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Net Assets", "documentation": "Amount of net assets (liabilities)." } } }, "auth_ref": [ "r0" ] }, "oef_AverageAnnualReturnAbstract": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AverageAnnualReturnAbstract", "lang": { "en-us": { "role": { "label": "Average Annual Return:" } } }, "auth_ref": [ "r81" ] }, "oef_AverageAnnualReturnLineItems": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AverageAnnualReturnLineItems", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails" ], "lang": { "en-us": { "role": { "label": "Average Annual Return [Line Items]" } } }, "auth_ref": [ "r81" ] }, "oef_AverageAnnualReturnTable": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AverageAnnualReturnTable", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails" ], "lang": { "en-us": { "role": { "label": "Average Annual Return [Table]" } } }, "auth_ref": [ "r81" ] }, "nylif_AverageLipperMoneyMarketFundC000018699Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "AverageLipperMoneyMarketFundC000018699Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Average Lipper Money Market Fund C000018699 [Member]" } } }, "auth_ref": [] }, "nylif_AverageLipperMoneyMarketFundMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "AverageLipperMoneyMarketFundMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Average Lipper Money Market Fund [Member]" } } }, "auth_ref": [] }, "oef_AvgAnnlRtrPct": { "xbrltype": "percentItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AvgAnnlRtrPct", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails" ], "lang": { "en-us": { "role": { "label": "Average Annual Return, Percent" } } }, "auth_ref": [ "r60" ] }, "oef_AvgAnnlRtrTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "AvgAnnlRtrTableTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Average Annual Return [Table Text Block]" } } }, "auth_ref": [ "r60" ] }, "country_BR": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "BR", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "BRAZIL" } } }, "auth_ref": [] }, "nylif_BanksMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "BanksMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Banks [Member]" } } }, "auth_ref": [] }, "nylif_BlackBeltEnergyGasDistrict374550Due1213412155Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "BlackBeltEnergyGasDistrict374550Due1213412155Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Black Belt Energy Gas District 3 74 5 50 due 12 1 34 12 1 55 [Member]" } } }, "auth_ref": [] }, "nylif_BlendedBenchmarkC000018708IndexMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "BlendedBenchmarkC000018708IndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Blended Benchmark C000018708 Index [Member]" } } }, "auth_ref": [] }, "nylif_BlendedBenchmarkIndexMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "BlendedBenchmarkIndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Blended Benchmark Index [Member]" } } }, "auth_ref": [] }, "nylif_Bloomberg510YearTaxableMunicipalBondC000018691IndexMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "Bloomberg510YearTaxableMunicipalBondC000018691IndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Bloomberg 5 10 Year Taxable Municipal Bond C000018691 Index [Member]" } } }, "auth_ref": [] }, "nylif_Bloomberg510YearTaxableMunicipalBondIndexMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "Bloomberg510YearTaxableMunicipalBondIndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Bloomberg 5 10 Year Taxable Municipal Bond Index [Member]" } } }, "auth_ref": [] }, "nylif_BloombergMunicipalBondC000018702IndexMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "BloombergMunicipalBondC000018702IndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Bloomberg Municipal Bond C000018702 Index [Member]" } } }, "auth_ref": [] }, "nylif_BloombergMunicipalBondIndexMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "BloombergMunicipalBondIndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Bloomberg Municipal Bond Index [Member]" } } }, "auth_ref": [] }, "nylif_BloombergUSAggregateBondC000018695IndexMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "BloombergUSAggregateBondC000018695IndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Bloomberg U S Aggregate Bond C000018695 Index [Member]" } } }, "auth_ref": [] }, "nylif_BloombergUSAggregateBondC000018708IndexMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "BloombergUSAggregateBondC000018708IndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Bloomberg U S Aggregate Bond C000018708 Index [Member]" } } }, "auth_ref": [] }, "nylif_BloombergUSAggregateBondIndexMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "BloombergUSAggregateBondIndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Bloomberg U S Aggregate Bond Index [Member]" } } }, "auth_ref": [] }, "oef_BroadBasedIndexAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "BroadBasedIndexAxis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Broad Based Index [Axis]" } } }, "auth_ref": [ "r53" ] }, "oef_BroadBasedIndexDomain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "BroadBasedIndexDomain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Broad Based Index [Domain]" } } }, "auth_ref": [ "r53" ] }, "nylif_BroadcomIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "BroadcomIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Broadcom Inc [Member]" } } }, "auth_ref": [] }, "nylif_BroadlineRetailMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "BroadlineRetailMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Broadline Retail [Member]" } } }, "auth_ref": [] }, "nylif_C000018685Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018685Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018685 [Member]", "terseLabel": "Class A" } } }, "auth_ref": [] }, "nylif_C000018687Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018687Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018687 [Member]", "terseLabel": "Class C" } } }, "auth_ref": [] }, "nylif_C000018688Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018688Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018688 [Member]", "terseLabel": "Class I" } } }, "auth_ref": [] }, "nylif_C000018689Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018689Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018689 [Member]" } } }, "auth_ref": [] }, "nylif_C000018691Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018691Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018691 [Member]" } } }, "auth_ref": [] }, "nylif_C000018692Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018692Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018692 [Member]" } } }, "auth_ref": [] }, "nylif_C000018693Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018693Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018693 [Member]" } } }, "auth_ref": [] }, "nylif_C000018695Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018695Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018695 [Member]" } } }, "auth_ref": [] }, "nylif_C000018696Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018696Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018696 [Member]" } } }, "auth_ref": [] }, "nylif_C000018697Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018697Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018697 [Member]" } } }, "auth_ref": [] }, "nylif_C000018699Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018699Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018699 [Member]" } } }, "auth_ref": [] }, "nylif_C000018700Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018700Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018700 [Member]" } } }, "auth_ref": [] }, "nylif_C000018702Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018702Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018702 [Member]" } } }, "auth_ref": [] }, "nylif_C000018703Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018703Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018703 [Member]" } } }, "auth_ref": [] }, "nylif_C000018705Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018705Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018705 [Member]" } } }, "auth_ref": [] }, "nylif_C000018706Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018706Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018706 [Member]" } } }, "auth_ref": [] }, "nylif_C000018708Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018708Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018708 [Member]" } } }, "auth_ref": [] }, "nylif_C000018709Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018709Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018709 [Member]" } } }, "auth_ref": [] }, "nylif_C000018710Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018710Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018710 [Member]" } } }, "auth_ref": [] }, "nylif_C000018712Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018712Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018712 [Member]" } } }, "auth_ref": [] }, "nylif_C000018719Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018719Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018719 [Member]" } } }, "auth_ref": [] }, "nylif_C000018721Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018721Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018721 [Member]" } } }, "auth_ref": [] }, "nylif_C000018722Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018722Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018722 [Member]" } } }, "auth_ref": [] }, "nylif_C000018724Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018724Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018724 [Member]" } } }, "auth_ref": [] }, "nylif_C000018726Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018726Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018726 [Member]" } } }, "auth_ref": [] }, "nylif_C000018727Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018727Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018727 [Member]" } } }, "auth_ref": [] }, "nylif_C000018728Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018728Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018728 [Member]", "terseLabel": "Class R1" } } }, "auth_ref": [] }, "nylif_C000018729Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018729Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018729 [Member]" } } }, "auth_ref": [] }, "nylif_C000018730Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018730Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018730 [Member]" } } }, "auth_ref": [] }, "nylif_C000018732Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018732Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018732 [Member]" } } }, "auth_ref": [] }, "nylif_C000018733Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000018733Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000018733 [Member]" } } }, "auth_ref": [] }, "nylif_C000030958Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000030958Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000030958 [Member]" } } }, "auth_ref": [] }, "nylif_C000052120Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000052120Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000052120 [Member]" } } }, "auth_ref": [] }, "nylif_C000057099Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000057099Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000057099 [Member]", "terseLabel": "Class R2" } } }, "auth_ref": [] }, "nylif_C000060790Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000060790Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000060790 [Member]", "terseLabel": "Investor Class" } } }, "auth_ref": [] }, "nylif_C000060791Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000060791Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000060791 [Member]" } } }, "auth_ref": [] }, "nylif_C000060792Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000060792Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000060792 [Member]" } } }, "auth_ref": [] }, "nylif_C000060793Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000060793Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000060793 [Member]" } } }, "auth_ref": [] }, "nylif_C000060794Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000060794Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000060794 [Member]" } } }, "auth_ref": [] }, "nylif_C000060795Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000060795Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000060795 [Member]" } } }, "auth_ref": [] }, "nylif_C000060796Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000060796Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000060796 [Member]" } } }, "auth_ref": [] }, "nylif_C000060797Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000060797Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000060797 [Member]" } } }, "auth_ref": [] }, "nylif_C000060799Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000060799Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000060799 [Member]" } } }, "auth_ref": [] }, "nylif_C000060800Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000060800Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000060800 [Member]" } } }, "auth_ref": [] }, "nylif_C000060801Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000060801Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000060801 [Member]" } } }, "auth_ref": [] }, "nylif_C000082082Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000082082Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000082082 [Member]" } } }, "auth_ref": [] }, "nylif_C000087595Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000087595Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000087595 [Member]" } } }, "auth_ref": [] }, "nylif_C000127160Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000127160Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000127160 [Member]" } } }, "auth_ref": [] }, "nylif_C000127162Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000127162Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000127162 [Member]" } } }, "auth_ref": [] }, "nylif_C000166835Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000166835Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000166835 [Member]", "terseLabel": "Class R3" } } }, "auth_ref": [] }, "nylif_C000179143Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000179143Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000179143 [Member]" } } }, "auth_ref": [] }, "nylif_C000185554Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000185554Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000185554 [Member]", "terseLabel": "Class R6" } } }, "auth_ref": [] }, "nylif_C000185556Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000185556Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000185556 [Member]" } } }, "auth_ref": [] }, "nylif_C000185560Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000185560Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000185560 [Member]" } } }, "auth_ref": [] }, "nylif_C000185564Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000185564Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000185564 [Member]" } } }, "auth_ref": [] }, "nylif_C000185571Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000185571Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000185571 [Member]" } } }, "auth_ref": [] }, "nylif_C000221691Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000221691Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000221691 [Member]", "terseLabel": "SIMPLE Class" } } }, "auth_ref": [] }, "nylif_C000221692Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000221692Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000221692 [Member]" } } }, "auth_ref": [] }, "nylif_C000221693Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000221693Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000221693 [Member]", "terseLabel": "Class C2" } } }, "auth_ref": [] }, "nylif_C000221696Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000221696Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000221696 [Member]" } } }, "auth_ref": [] }, "nylif_C000221700Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "C000221700Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "C000221700 [Member]" } } }, "auth_ref": [] }, "stpr_CA": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/stpr/2025", "localname": "CA", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "CALIFORNIA" } } }, "auth_ref": [] }, "nylif_CCOHoldingsLLC4255375Due512711534Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "CCOHoldingsLLC4255375Due512711534Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "CCO Holdings LLC 4 25 5 375 due 5 1 27 1 15 34 [Member]" } } }, "auth_ref": [] }, "country_CL": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "CL", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "CHILE" } } }, "auth_ref": [] }, "nylif_CaliforniaCommunityChoiceFinancingAuthority3902525Due111334156Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "CaliforniaCommunityChoiceFinancingAuthority3902525Due111334156Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "California Community Choice Financing Authority 3 902 5 25 due 11 1 33 4 1 56 [Member]" } } }, "auth_ref": [] }, "nylif_CapitalMarketsMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "CapitalMarketsMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Capital Markets [Member]" } } }, "auth_ref": [] }, "us-gaap_ChemicalsSectorMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ChemicalsSectorMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Chemicals Sector [Member]", "documentation": "Sector of economy consisting of companies engaged in business activity related to chemicals." } } }, "auth_ref": [ "r99", "r100", "r101", "r105" ] }, "nylif_ChicagoBoardOfEducationZeroCoupon600Due121264148Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "ChicagoBoardOfEducationZeroCoupon600Due121264148Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Chicago Board of Education zero coupon 6 00 due 12 1 26 4 1 48 [Member]" } } }, "auth_ref": [] }, "nylif_ChicagoOHareInternationalAirport400550Due11281160Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "ChicagoOHareInternationalAirport400550Due11281160Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Chicago O Hare International Airport 4 00 5 50 due 1 1 28 1 1 60 [Member]" } } }, "auth_ref": [] }, "nylif_ChileGovernmentBond255565Due7273392171Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "ChileGovernmentBond255565Due7273392171Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Chile Government Bond 2 55 5 65 due 7 27 33 9 21 71 [Member]" } } }, "auth_ref": [] }, "nylif_ChurchillDownsInc475675Due41275131Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "ChurchillDownsInc475675Due41275131Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Churchill Downs Inc 4 75 6 75 due 4 1 27 5 1 31 [Member]" } } }, "auth_ref": [] }, "nylif_CiscoSystemsIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "CiscoSystemsIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Cisco Systems Inc [Member]" } } }, "auth_ref": [] }, "nylif_CityOfNewYork1623575Due81282142Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "CityOfNewYork1623575Due81282142Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "City of New York 1 623 5 75 due 8 1 28 2 1 42 [Member]" } } }, "auth_ref": [] }, "oef_ClassAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ClassAxis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Class [Axis]" } } }, "auth_ref": [ "r40" ] }, "oef_ClassName": { "xbrltype": "securityTitleItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ClassName", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Class Name" } } }, "auth_ref": [ "r45" ] }, "us-gaap_CommercialPaperMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CommercialPaperMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Commercial Paper [Member]", "documentation": "Unsecured promissory note (generally negotiable) that provides institutions with short-term funds." } } }, "auth_ref": [ "r1", "r2", "r34", "r35", "r36", "r37" ] }, "nylif_CommercialServicesAndSuppliesMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "CommercialServicesAndSuppliesMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Commercial Services And Supplies [Member]" } } }, "auth_ref": [] }, "us-gaap_CommonStockMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CommonStockMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Common Stock [Member]", "documentation": "Stock that is subordinate to all other stock of the issuer." } } }, "auth_ref": [ "r31", "r32", "r33", "r34", "r35", "r36", "r37", "r83", "r84", "r85", "r94", "r96", "r98" ] }, "nylif_CommonwealthOfMassachusetts1929550Due715299143Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "CommonwealthOfMassachusetts1929550Due715299143Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Commonwealth of Massachusetts 1 929 5 50 due 7 15 29 9 1 43 [Member]" } } }, "auth_ref": [] }, "nylif_CommunicationsEquipmentMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "CommunicationsEquipmentMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Communications Equipment [Member]" } } }, "auth_ref": [] }, "nylif_ConnecticutAvenueSecuritiesTrust51451301Due11253922545Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "ConnecticutAvenueSecuritiesTrust51451301Due11253922545Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Connecticut Avenue Securities Trust 5 145 13 01 due 11 25 39 2 25 45 [Member]" } } }, "auth_ref": [] }, "nylif_ConstellationSoftwareIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "ConstellationSoftwareIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Constellation Software Inc [Member]" } } }, "auth_ref": [] }, "nylif_ConsumerFinanceMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "ConsumerFinanceMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Consumer Finance [Member]" } } }, "auth_ref": [] }, "nylif_ConvertibleBondsMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "ConvertibleBondsMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Convertible Bonds [Member]" } } }, "auth_ref": [] }, "us-gaap_ConvertiblePreferredStockMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ConvertiblePreferredStockMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Convertible Preferred Stock [Member]", "documentation": "Preferred stock that may be exchanged into common shares or other types of securities at the owner's option." } } }, "auth_ref": [ "r3", "r4", "r5", "r34", "r35", "r36", "r37" ] }, "us-gaap_CorporateBondSecuritiesMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "CorporateBondSecuritiesMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Corporate Bond Securities [Member]", "documentation": "This category includes information about long-term debt securities that are issued by either a domestic or foreign corporate business entity with a date certain promise of repayment and a return to the holder for the time value of money (for example, variable or fixed interest, original issue discount)." } } }, "auth_ref": [] }, "dei_CoverAbstract": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "CoverAbstract", "lang": { "en-us": { "role": { "documentation": "Cover page." } } }, "auth_ref": [] }, "nylif_CreditAcceptanceCorpMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "CreditAcceptanceCorpMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Credit Acceptance Corp [Member]" } } }, "auth_ref": [] }, "oef_CreditQualityAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "CreditQualityAxis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Credit Quality [Axis]" } } }, "auth_ref": [ "r68" ] }, "oef_CreditQualityDomain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "CreditQualityDomain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Credit Quality [Domain]" } } }, "auth_ref": [ "r68" ] }, "oef_CreditQualityExplanationTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "CreditQualityExplanationTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Credit Quality Explanation [Text Block]" } } }, "auth_ref": [ "r68" ] }, "srt_CreditRatingAMBestDomain": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/srt/2025", "localname": "CreditRatingAMBestDomain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "auth_ref": [ "r23", "r91" ] }, "oef_CreditRatingsSelectionTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "CreditRatingsSelectionTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Credit Ratings Selection [Text Block]" } } }, "auth_ref": [ "r68" ] }, "country_DO": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "DO", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "DOMINICAN REPUBLIC" } } }, "auth_ref": [] }, "nylif_DellTechnologiesIncClassCMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "DellTechnologiesIncClassCMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Dell Technologies Inc Class C [Member]" } } }, "auth_ref": [] }, "nylif_DiamondbackEnergyIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "DiamondbackEnergyIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Diamondback Energy Inc [Member]" } } }, "auth_ref": [] }, "oef_DistOfCapitalTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "DistOfCapitalTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Distribution of Capital [Text Block]" } } }, "auth_ref": [ "r62" ] }, "dei_DocumentPeriodEndDate": { "xbrltype": "dateItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "DocumentPeriodEndDate", "presentation": [ "http://xbrl.sec.gov/oef/role/NcsrCover", "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Document Period End Date", "documentation": "For the EDGAR submission types of Form 8-K: the date of the report, the date of the earliest event reported; for the EDGAR submission types of Form N-1A: the filing date; for all other submission types: the end of the reporting or transition period. The format of the date is YYYY-MM-DD." } } }, "auth_ref": [] }, "dei_DocumentType": { "xbrltype": "submissionTypeItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "DocumentType", "presentation": [ "http://xbrl.sec.gov/oef/role/NcsrCover", "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Document Type", "documentation": "The type of document being provided (such as 10-K, 10-Q, 485BPOS, etc). The document type is limited to the same value as the supporting SEC submission type, or the word 'Other'." } } }, "auth_ref": [] }, "nylif_DominicanRepublicGovernmentBond4875705Due233112141Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "DominicanRepublicGovernmentBond4875705Due233112141Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Dominican Republic Government Bond 4 875 7 05 due 2 3 31 1 21 41 [Member]" } } }, "auth_ref": [] }, "country_EG": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "EG", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "EGYPT" } } }, "auth_ref": [] }, "nylif_EcuadorGovernmentBond690925Due7313012939Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "EcuadorGovernmentBond690925Due7313012939Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Ecuador Government Bond 6 90 9 25 due 7 31 30 1 29 39 [Member]" } } }, "auth_ref": [] }, "nylif_EgyptGovernmentBond6588870Due2212821661Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "EgyptGovernmentBond6588870Due2212821661Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Egypt Government Bond 6 588 8 70 due 2 21 28 2 16 61 [Member]" } } }, "auth_ref": [] }, "nylif_ElectricalEquipmentMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "ElectricalEquipmentMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Electrical Equipment [Member]" } } }, "auth_ref": [] }, "nylif_ElectronicEquipmentInstrumentsAndComponentsMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "ElectronicEquipmentInstrumentsAndComponentsMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Electronic Equipment Instruments And Components [Member]" } } }, "auth_ref": [] }, "nylif_ElevanceHealthIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "ElevanceHealthIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Elevance Health Inc [Member]" } } }, "auth_ref": [] }, "nylif_EliLillyAndCoMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "EliLillyAndCoMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Eli Lilly And Co [Member]" } } }, "auth_ref": [] }, "dei_EntityCentralIndexKey": { "xbrltype": "centralIndexKeyItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityCentralIndexKey", "presentation": [ "http://xbrl.sec.gov/oef/role/NcsrCover", "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Entity Central Index Key", "documentation": "A unique 10-digit SEC-issued value to identify entities that have filed disclosures with the SEC. It is commonly abbreviated as CIK." } } }, "auth_ref": [ "r38" ] }, "dei_EntityDomain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityDomain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails" ], "lang": { "en-us": { "role": { "label": "Series", "documentation": "All the names of the entities being reported upon in a document. Any legal structure used to conduct activities or to hold assets. Some examples of such structures are corporations, partnerships, limited liability companies, grantor trusts, and other trusts. This item does not include business and geographical segments which are included in the geographical or business segments domains." } } }, "auth_ref": [] }, "dei_EntityInvCompanyType": { "xbrltype": "invCompanyType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityInvCompanyType", "presentation": [ "http://xbrl.sec.gov/oef/role/NcsrCover", "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Entity Investment Company Type", "documentation": "One of: N-1A (Mutual Fund), N-1 (Open-End Separate Account with No Variable Annuities), N-2 (Closed-End Investment Company), N-3 (Separate Account Registered as Open-End Management Investment Company), N-4 (Variable Annuity UIT Separate Account), N-5 (Small Business Investment Company), N-6 (Variable Life UIT Separate Account), S-1 or S-3 (Face Amount Certificate Company), S-6 (UIT, Non-Insurance Product)." } } }, "auth_ref": [ "r82" ] }, "dei_EntityRegistrantName": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "EntityRegistrantName", "presentation": [ "http://xbrl.sec.gov/oef/role/NcsrCover", "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Registrant Name", "documentation": "The exact name of the entity filing the report as specified in its charter, which is required by forms filed with the SEC." } } }, "auth_ref": [ "r38" ] }, "oef_EtfDiscountNumDays": { "xbrltype": "integerItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "EtfDiscountNumDays", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "ETF Discount, Number of Days" } } }, "auth_ref": [ "r63" ] }, "oef_EtfPastPerfTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "EtfPastPerfTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "ETF Past Performance [Text Block]" } } }, "auth_ref": [ "r65" ] }, "oef_EtfPremiumDiscountTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "EtfPremiumDiscountTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "ETF Premium Discount [Text Block]" } } }, "auth_ref": [ "r63" ] }, "oef_EtfPremiumNumDays": { "xbrltype": "integerItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "EtfPremiumNumDays", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "ETF Premium, Number of Days" } } }, "auth_ref": [ "r63" ] }, "oef_EtfPurchaseExplanationTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "EtfPurchaseExplanationTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "ETF Purchase Explanation [Text Block]" } } }, "auth_ref": [ "r64" ] }, "us-gaap_ExchangeTradedFundsMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ExchangeTradedFundsMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Exchange Traded Funds [Member]", "documentation": "Investment that follows an index, commodity or basket of assets that trades similar to a stock on an exchange." } } }, "auth_ref": [ "r92", "r93" ] }, "nylif_ExeterAutomobileReceivablesTrust557752Due10152961533Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "ExeterAutomobileReceivablesTrust557752Due10152961533Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Exeter Automobile Receivables Trust 5 57 7 52 due 10 15 29 6 15 33 [Member]" } } }, "auth_ref": [] }, "nylif_ExpeditorsInternationalOfWashingtonIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "ExpeditorsInternationalOfWashingtonIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Expeditors International of Washington Inc [Member]" } } }, "auth_ref": [] }, "oef_ExpenseRatioPct": { "xbrltype": "percentItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ExpenseRatioPct", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Expense Ratio, Percent" } } }, "auth_ref": [ "r48" ] }, "oef_ExpensesExclExtraordinaryExpensesPct": { "xbrltype": "percentItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ExpensesExclExtraordinaryExpensesPct", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Expenses Excluding Extraordinary Expenses, Percent" } } }, "auth_ref": [ "r51" ] }, "oef_ExpensesPaidAmt": { "xbrltype": "monetaryItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ExpensesPaidAmt", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Expenses Paid, Amount" } } }, "auth_ref": [ "r47" ] }, "oef_ExpensesRepresentBothMasterAndFeeder": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ExpensesRepresentBothMasterAndFeeder", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Expenses Represent Both Master and Feeder [Text]" } } }, "auth_ref": [ "r49", "r79" ] }, "oef_ExpensesShortPeriodFnTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ExpensesShortPeriodFnTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Expenses Short Period Footnote [Text Block]" } } }, "auth_ref": [ "r50" ] }, "oef_ExpensesTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ExpensesTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Expenses [Text Block]" } } }, "auth_ref": [ "r46" ] }, "oef_ExposureBasisExplanationTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ExposureBasisExplanationTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Exposure Basis Explanation [Text Block]" } } }, "auth_ref": [ "r68" ] }, "srt_ExternalCreditRatingFitchMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/srt/2025", "localname": "ExternalCreditRatingFitchMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "auth_ref": [ "r23", "r91" ] }, "srt_ExternalCreditRatingMoodysMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/srt/2025", "localname": "ExternalCreditRatingMoodysMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "auth_ref": [ "r23", "r91" ] }, "srt_ExternalCreditRatingStandardPoorsMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/srt/2025", "localname": "ExternalCreditRatingStandardPoorsMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "auth_ref": [ "r23", "r91" ] }, "oef_ExtraordinaryExpensesFnTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ExtraordinaryExpensesFnTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Extraordinary Expenses Footnote [Text Block]" } } }, "auth_ref": [ "r51" ] }, "nylif_FHLMCMSCRTrust59459646Due52544112551Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "FHLMCMSCRTrust59459646Due52544112551Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "FHLMC MSCR Trust 5 945 9 646 due 5 25 44 11 25 51 [Member]" } } }, "auth_ref": [] }, "nylif_FHLMCSTACRREMICTrust484512145Due1253412550Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "FHLMCSTACRREMICTrust484512145Due1253412550Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "FHLMC STACR REMIC Trust 4 845 12 145 due 1 25 34 1 25 50 [Member]" } } }, "auth_ref": [] }, "nylif_FHLMCSTACRTrust8561501Due9254772549Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "FHLMCSTACRTrust8561501Due9254772549Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "FHLMC STACR Trust 8 56 15 01 due 9 25 47 7 25 49 [Member]" } } }, "auth_ref": [] }, "stpr_FL": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/stpr/2025", "localname": "FL", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "FLORIDA" } } }, "auth_ref": [] }, "oef_FactorsAffectingPerfTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "FactorsAffectingPerfTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Factors Affecting Performance [Text Block]" } } }, "auth_ref": [ "r52" ] }, "us-gaap_FinancialServicesSectorMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "FinancialServicesSectorMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Financial Services Sector [Member]", "documentation": "Sector of the economy consisting of companies engaged in financial services." } } }, "auth_ref": [ "r29", "r33", "r99", "r100", "r101", "r105" ] }, "nylif_FlagshipCreditAutoTrust159883Due6152711532Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "FlagshipCreditAutoTrust159883Due6152711532Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Flagship Credit Auto Trust 1 59 8 83 due 6 15 27 1 15 32 [Member]" } } }, "auth_ref": [] }, "nylif_ForeignGovernmentBondMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "ForeignGovernmentBondMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Foreign Government Bond [Member]" } } }, "auth_ref": [] }, "nylif_ForeignGovernmentBondsMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "ForeignGovernmentBondsMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Foreign Government Bonds [Member]" } } }, "auth_ref": [] }, "oef_FundName": { "xbrltype": "normalizedStringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "FundName", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Fund Name" } } }, "auth_ref": [ "r41" ] }, "stpr_GA": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/stpr/2025", "localname": "GA", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "GEORGIA" } } }, "auth_ref": [] }, "nylif_GEAerospaceMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "GEAerospaceMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "GE Aerospace [Member]" } } }, "auth_ref": [] }, "nylif_GEVernovaIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "GEVernovaIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "GE Vernova Inc [Member]" } } }, "auth_ref": [] }, "nylif_GNMAZeroCoupon502Due7204431666Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "GNMAZeroCoupon502Due7204431666Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "GNMA zero coupon 5 02 due 7 20 44 3 16 66 [Member]" } } }, "auth_ref": [] }, "nylif_GNMAZeroCoupon7881Due7204431666Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "GNMAZeroCoupon7881Due7204431666Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "GNMA zero coupon 7 881 due 7 20 44 3 16 66 [Member]" } } }, "auth_ref": [] }, "oef_GeographicRegionAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "GeographicRegionAxis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Geographic Region [Axis]" } } }, "auth_ref": [ "r68" ] }, "oef_GeographicRegionDomain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "GeographicRegionDomain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Geographic Region [Domain]" } } }, "auth_ref": [ "r68" ] }, "nylif_GroundTransportationMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "GroundTransportationMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Ground Transportation [Member]" } } }, "auth_ref": [] }, "country_HU": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "HU", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "HUNGARY" } } }, "auth_ref": [] }, "nylif_HealthCareProvidersAndServicesMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "HealthCareProvidersAndServicesMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Health Care Providers And Services [Member]" } } }, "auth_ref": [] }, "nylif_HewlettPackardEnterpriseCoMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "HewlettPackardEnterpriseCoMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Hewlett Packard Enterprise Co [Member]" } } }, "auth_ref": [] }, "nylif_HiltonDomesticOperatingCoInc4005875Due1153033134Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "HiltonDomesticOperatingCoInc4005875Due1153033134Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Hilton Domestic Operating Co Inc 4 00 5 875 due 1 15 30 3 31 34 [Member]" } } }, "auth_ref": [] }, "oef_HoldingsAbstract": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "HoldingsAbstract", "lang": { "en-us": { "role": { "label": "Holdings [Abstract]" } } }, "auth_ref": [ "r68" ] }, "oef_HoldingsCount": { "xbrltype": "integerItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "HoldingsCount", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Holdings Count" } } }, "auth_ref": [ "r66" ] }, "oef_HoldingsLineItems": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "HoldingsLineItems", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Holdings [Line Items]" } } }, "auth_ref": [ "r68" ] }, "oef_HoldingsTable": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "HoldingsTable", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Holdings [Table]" } } }, "auth_ref": [ "r68" ] }, "oef_HoldingsTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "HoldingsTableTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Holdings [Text Block]" } } }, "auth_ref": [ "r68" ] }, "nylif_HotelsRestaurantsAndLeisureMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "HotelsRestaurantsAndLeisureMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Hotels Restaurants And Leisure [Member]" } } }, "auth_ref": [] }, "nylif_HouseholdDurablesMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "HouseholdDurablesMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Household Durables [Member]" } } }, "auth_ref": [] }, "nylif_HungaryGovernmentBond48757625Due3263632941Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "HungaryGovernmentBond48757625Due3263632941Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Hungary Government Bond 4 875 7 625 due 3 26 36 3 29 41 [Member]" } } }, "auth_ref": [] }, "nylif_ICEBofAUSConvertibleC000018705IndexMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "ICEBofAUSConvertibleC000018705IndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "ICE BofA U S Convertible C000018705 Index [Member]" } } }, "auth_ref": [] }, "nylif_ICEBofAUSConvertibleIndexMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "ICEBofAUSConvertibleIndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "ICE BofA U S Convertible Index [Member]" } } }, "auth_ref": [] }, "nylif_ICEBofAUSHighYieldConstrainedC000018695IndexMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "ICEBofAUSHighYieldConstrainedC000018695IndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "ICE BofA U S High Yield Constrained C000018695 Index [Member]" } } }, "auth_ref": [] }, "nylif_ICEBofAUSHighYieldConstrainedIndexMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "ICEBofAUSHighYieldConstrainedIndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "ICE BofA U S High Yield Constrained Index [Member]" } } }, "auth_ref": [] }, "nylif_IHOVerwaltungsGmbH6375800Due5152951533Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "IHOVerwaltungsGmbH6375800Due5152951533Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "IHO Verwaltungs GmbH 6 375 8 00 due 5 15 29 5 15 33 [Member]" } } }, "auth_ref": [] }, "stpr_IL": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/stpr/2025", "localname": "IL", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "ILLINOIS" } } }, "auth_ref": [] }, "oef_InabilityToMeetDistLevelTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "InabilityToMeetDistLevelTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Inability to Meet Distribution Level [Text Block]" } } }, "auth_ref": [ "r62" ] }, "oef_IndustrySectorAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "IndustrySectorAxis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Industry Sector [Axis]" } } }, "auth_ref": [ "r68" ] }, "oef_IndustrySectorDomain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "IndustrySectorDomain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Industry Sector [Domain]" } } }, "auth_ref": [ "r68" ] }, "us-gaap_InsuranceSectorMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InsuranceSectorMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Insurance Sector [Member]", "documentation": "Sector of economy consisting of companies engaged in business activity related to insurance." } } }, "auth_ref": [ "r99", "r100", "r101", "r105" ] }, "nylif_InteractiveMediaAndServicesMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "InteractiveMediaAndServicesMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Interactive Media And Services [Member]" } } }, "auth_ref": [] }, "us-gaap_InvestmentCompanyPortfolioTurnover": { "xbrltype": "percentItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InvestmentCompanyPortfolioTurnover", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Investment Company Portfolio Turnover", "documentation": "Percentage of lesser of purchase or sale of portfolio securities to average value of portfolio securities owned." } } }, "auth_ref": [ "r97" ] }, "us-gaap_InvestmentTypeAxis": { "xbrltype": "stringItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InvestmentTypeAxis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Investment Type [Axis]", "documentation": "Information by type of investments." } } }, "auth_ref": [ "r6", "r7", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", "r16", "r17", "r18", "r19", "r20", "r21", "r33" ] }, "us-gaap_InvestmentTypeCategorizationMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "InvestmentTypeCategorizationMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "documentation": "Asset obtained to generate income or appreciate in value." } } }, "auth_ref": [ "r6", "r7", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", "r16", "r17", "r18", "r19", "r20", "r21", "r33" ] }, "nylif_JPMorganChaseAndCoMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "JPMorganChaseAndCoMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "JPMorgan Chase And Co [Member]" } } }, "auth_ref": [] }, "nylif_JPMorganEMBIGlobalDiversifiedC000018712IndexMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "JPMorganEMBIGlobalDiversifiedC000018712IndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "JPMorgan EMBI Global Diversified C000018712 Index [Member]" } } }, "auth_ref": [] }, "nylif_JPMorganEMBIGlobalDiversifiedIndexMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "JPMorganEMBIGlobalDiversifiedIndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "JPMorgan EMBI Global Diversified Index [Member]" } } }, "auth_ref": [] }, "nylif_JaneStreetGroup61257125Due430315133Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "JaneStreetGroup61257125Due430315133Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Jane Street Group 6 125 7 125 due 4 30 31 5 1 33 [Member]" } } }, "auth_ref": [] }, "nylif_JohnsonAndJohnsonMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "JohnsonAndJohnsonMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Johnson And Johnson [Member]" } } }, "auth_ref": [] }, "nylif_LantheusHoldingsInc2625Due121527Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "LantheusHoldingsInc2625Due121527Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Lantheus Holdings Inc 2 625 due 12 15 27 [Member]" } } }, "auth_ref": [] }, "oef_LargestHoldingAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "LargestHoldingAxis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Largest Holding [Axis]" } } }, "auth_ref": [ "r68" ] }, "oef_LargestHoldingsDomain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "LargestHoldingsDomain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Largest Holdings [Domain]" } } }, "auth_ref": [ "r68" ] }, "oef_LargestHoldingsTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "LargestHoldingsTableTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Largest Holdings [Text Block]" } } }, "auth_ref": [ "r68" ] }, "dei_LegalEntityAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "LegalEntityAxis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails" ], "lang": { "en-us": { "role": { "label": "Series [Axis]", "documentation": "The set of legal entities associated with a report." } } }, "auth_ref": [] }, "nylif_LifePointHealthInc53751000Due115295134Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "LifePointHealthInc53751000Due115295134Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "LifePoint Health Inc 5 375 10 00 due 1 15 29 5 1 34 [Member]" } } }, "auth_ref": [] }, "nylif_LindePlcMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "LindePlcMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Linde plc [Member]" } } }, "auth_ref": [] }, "oef_LineGraphAndTableMeasureName": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "LineGraphAndTableMeasureName", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Line Graph and Table Measure Name" } } }, "auth_ref": [ "r54" ] }, "oef_LineGraphTableTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "LineGraphTableTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Line Graph [Table Text Block]" } } }, "auth_ref": [ "r53" ] }, "us-gaap_LoanParticipationsAndAssignmentsMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "LoanParticipationsAndAssignmentsMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Loan Participations and Assignments [Member]", "documentation": "Investments consisting of the rights in and risks associated with loans shared among a number of (unrelated) parties which may or may not include an assignment of the underlying instrument." } } }, "auth_ref": [] }, "nylif_LosAngelesDepartmentOfWaterAndPower5006603Due71287153Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "LosAngelesDepartmentOfWaterAndPower5006603Due71287153Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Los Angeles Department of Water And Power 5 00 6 603 due 7 1 28 7 1 53 [Member]" } } }, "auth_ref": [] }, "nylif_LumentumHoldingsInc050Due61528Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "LumentumHoldingsInc050Due61528Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Lumentum Holdings Inc 0 50 due 6 15 28 [Member]" } } }, "auth_ref": [] }, "stpr_MA": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/stpr/2025", "localname": "MA", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "MASSACHUSETTS" } } }, "auth_ref": [] }, "nylif_MAndTBankCorpMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "MAndTBankCorpMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "M And T Bank Corp [Member]" } } }, "auth_ref": [] }, "nylif_MKSInc125Due6130Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "MKSInc125Due6130Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "MKS Inc 1 25 due 6 1 30 [Member]" } } }, "auth_ref": [] }, "nylif_MSCIWorldC000018708IndexNetMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "MSCIWorldC000018708IndexNetMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "MSCI World C000018708 Index Net [Member]" } } }, "auth_ref": [] }, "nylif_MSCIWorldIndexNetMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "MSCIWorldIndexNetMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "MSCI World Index Net [Member]" } } }, "auth_ref": [] }, "country_MX": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "MX", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "MEXICO" } } }, "auth_ref": [] }, "nylif_MachineryMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "MachineryMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Machinery [Member]" } } }, "auth_ref": [] }, "nylif_MainStreetNaturalGasInc400550Due915275155Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "MainStreetNaturalGasInc400550Due915275155Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Main Street Natural Gas Inc 4 00 5 50 due 9 15 27 5 1 55 [Member]" } } }, "auth_ref": [] }, "nylif_MassachusettsEducationalFinancingAuthority5956166Due71447150Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "MassachusettsEducationalFinancingAuthority5956166Due71447150Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Massachusetts Educational Financing Authority 5 95 6 166 due 7 1 44 7 1 50 [Member]" } } }, "auth_ref": [] }, "oef_MaterialChngDate": { "xbrltype": "dateItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaterialChngDate", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Material Change Date" } } }, "auth_ref": [ "r58" ] }, "oef_MaterialChngDescriptionTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaterialChngDescriptionTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Material Change Description [Text Block]" } } }, "auth_ref": [ "r58" ] }, "oef_MaterialFundChngAdviserTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaterialFundChngAdviserTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Material Fund Change Adviser [Text Block]" } } }, "auth_ref": [ "r75" ] }, "oef_MaterialFundChngExpensesTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaterialFundChngExpensesTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Material Fund Change Expenses [Text Block]" } } }, "auth_ref": [ "r72" ] }, "oef_MaterialFundChngNameTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaterialFundChngNameTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Material Fund Change Name [Text Block]" } } }, "auth_ref": [ "r70" ] }, "oef_MaterialFundChngNoticeTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaterialFundChngNoticeTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Material Fund Change Notice [Text Block]" } } }, "auth_ref": [ "r44" ] }, "oef_MaterialFundChngObjectivesTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaterialFundChngObjectivesTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Material Fund Change Objectives [Text Block]" } } }, "auth_ref": [ "r71" ] }, "oef_MaterialFundChngRisksChngTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaterialFundChngRisksChngTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Material Fund Change Risks Change [Text Block]" } } }, "auth_ref": [ "r74" ] }, "oef_MaterialFundChngStrategiesTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaterialFundChngStrategiesTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Material Fund Change Strategies [Text Block]" } } }, "auth_ref": [ "r73" ] }, "oef_MaterialFundChngTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaterialFundChngTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Material Fund Change [Text Block]" } } }, "auth_ref": [ "r69" ] }, "oef_MaturityAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaturityAxis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Maturity [Axis]" } } }, "auth_ref": [ "r68" ] }, "oef_MaturityDomain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "MaturityDomain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Maturity [Domain]" } } }, "auth_ref": [ "r68" ] }, "nylif_MerckAndCoIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "MerckAndCoIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Merck And Co Inc [Member]" } } }, "auth_ref": [] }, "nylif_MetaPlatformsIncClassAMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "MetaPlatformsIncClassAMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Meta Platforms Inc Class A [Member]" } } }, "auth_ref": [] }, "nylif_MexicoGovernmentBond3756625Due573641971Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "MexicoGovernmentBond3756625Due573641971Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Mexico Government Bond 3 75 6 625 due 5 7 36 4 19 71 [Member]" } } }, "auth_ref": [] }, "nylif_MicrosoftCorpMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "MicrosoftCorpMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Microsoft Corp [Member]" } } }, "auth_ref": [] }, "nylif_MirumPharmaceuticalsInc400Due5129Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "MirumPharmaceuticalsInc400Due5129Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Mirum Pharmaceuticals Inc 4 00 due 5 1 29 [Member]" } } }, "auth_ref": [] }, "nylif_MorningstarConvertiblesCategoryAverageMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "MorningstarConvertiblesCategoryAverageMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Morningstar Convertibles Category Average [Member]" } } }, "auth_ref": [] }, "nylif_MorningstarEmergingMarketsBondCategoryAverageMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "MorningstarEmergingMarketsBondCategoryAverageMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Morningstar Emerging Markets Bond Category Average [Member]" } } }, "auth_ref": [] }, "nylif_MorningstarGlobalModerateAllocationCategoryAverageMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "MorningstarGlobalModerateAllocationCategoryAverageMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Morningstar Global Moderate Allocation Category Average [Member]" } } }, "auth_ref": [] }, "nylif_MorningstarHighYieldBondCategoryAverageMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "MorningstarHighYieldBondCategoryAverageMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Morningstar High Yield Bond Category Average [Member]" } } }, "auth_ref": [] }, "nylif_MorningstarIntermediateCoreBondCategoryAverageMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "MorningstarIntermediateCoreBondCategoryAverageMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Morningstar Intermediate Core Bond Category Average [Member]" } } }, "auth_ref": [] }, "nylif_MorningstarLargeBlendCategoryAverageMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "MorningstarLargeBlendCategoryAverageMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Morningstar Large Blend Category Average [Member]" } } }, "auth_ref": [] }, "nylif_MorningstarLargeGrowthCategoryAverageMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "MorningstarLargeGrowthCategoryAverageMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Morningstar Large Growth Category Average [Member]" } } }, "auth_ref": [] }, "nylif_MorningstarLargeValueCategoryAverageMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "MorningstarLargeValueCategoryAverageMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Morningstar Large Value Category Average [Member]" } } }, "auth_ref": [] }, "nylif_MorningstarMultisectorBondCategoryAverageMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "MorningstarMultisectorBondCategoryAverageMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Morningstar Multisector Bond Category Average [Member]" } } }, "auth_ref": [] }, "nylif_MorningstarMuniNationalLongCategoryAverageMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "MorningstarMuniNationalLongCategoryAverageMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Morningstar Muni National Long Category Average [Member]" } } }, "auth_ref": [] }, "us-gaap_MortgageBackedSecuritiesMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "MortgageBackedSecuritiesMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Collateralized Mortgage-Backed Securities [Member]", "documentation": "Securities collateralized by mortgage loans." } } }, "auth_ref": [ "r24", "r25", "r26", "r27", "r28", "r86", "r87", "r88", "r89", "r90", "r95" ] }, "us-gaap_MunicipalBondsMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "MunicipalBondsMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Municipal Bonds [Member]", "documentation": "Long-term debt securities issued by state, city or local governments or the agencies operated by state, city or local governments." } } }, "auth_ref": [] }, "country_NG": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "NG", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "NIGERIA" } } }, "auth_ref": [] }, "stpr_NH": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/stpr/2025", "localname": "NH", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "NEW HAMPSHIRE" } } }, "auth_ref": [] }, "nylif_NRGEnergyInc575625Due213351536Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "NRGEnergyInc575625Due213351536Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "NRG Energy Inc 5 75 6 25 due 2 1 33 5 15 36 [Member]" } } }, "auth_ref": [] }, "nylif_NVIDIACorpMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "NVIDIACorpMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "NVIDIA Corp [Member]" } } }, "auth_ref": [] }, "nylif_NVRIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "NVRIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "NVR Inc [Member]" } } }, "auth_ref": [] }, "stpr_NY": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/stpr/2025", "localname": "NY", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "NEW YORK" } } }, "auth_ref": [] }, "nylif_NewHampshireBusinessFinanceAuthority300689Due413411164Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "NewHampshireBusinessFinanceAuthority300689Due413411164Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "New Hampshire Business Finance Authority 3 00 6 89 due 4 1 34 11 1 64 [Member]" } } }, "auth_ref": [] }, "nylif_NewYorkCityHousingDevelopmentCorp54586033Due121531Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "NewYorkCityHousingDevelopmentCorp54586033Due121531Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "New York City Housing Development Corp 5 458 6 033 due 12 15 31 [Member]" } } }, "auth_ref": [] }, "nylif_NewYorkCityTransitionalFinanceAuthority197565Due1113011135Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "NewYorkCityTransitionalFinanceAuthority197565Due1113011135Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "New York City Transitional Finance Authority 1 97 5 65 due 11 1 30 11 1 35 [Member]" } } }, "auth_ref": [] }, "nylif_NewYorkCityTransitionalFinanceAuthority300550Due51405153Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "NewYorkCityTransitionalFinanceAuthority300550Due51405153Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "New York City Transitional Finance Authority 3 00 5 50 due 5 1 40 5 1 53 [Member]" } } }, "auth_ref": [] }, "nylif_NewYorkStateDormitoryAuthority27465289Due71307135Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "NewYorkStateDormitoryAuthority27465289Due71307135Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "New York State Dormitory Authority 2 746 5 289 due 7 1 30 7 1 35 [Member]" } } }, "auth_ref": [] }, "nylif_NigeriaGovernmentBond612510375Due9282892851Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "NigeriaGovernmentBond612510375Due9282892851Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Nigeria Government Bond 6 125 10 375 due 9 28 28 9 28 51 [Member]" } } }, "auth_ref": [] }, "oef_NoDeductionOfTaxesTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "NoDeductionOfTaxesTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "No Deduction of Taxes [Text Block]" } } }, "auth_ref": [ "r55" ] }, "dei_NoTradingSymbolFlag": { "xbrltype": "trueItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "NoTradingSymbolFlag", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "No Trading Symbol Flag", "documentation": "Boolean flag that is true only for a security having no trading symbol." } } }, "auth_ref": [] }, "nylif_ONSemiconductorCorpZeroCouponDue5127Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "ONSemiconductorCorpZeroCouponDue5127Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "ON Semiconductor Corp zero coupon due 5 1 27 [Member]" } } }, "auth_ref": [] }, "nylif_OilGasAndConsumableFuelsMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "OilGasAndConsumableFuelsMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Oil Gas And Consumable Fuels [Member]" } } }, "auth_ref": [] }, "nylif_OldDominionFreightLineIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "OldDominionFreightLineIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Old Dominion Freight Line Inc [Member]" } } }, "auth_ref": [] }, "nylif_OtherAssetsLessLiabilitiesMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "OtherAssetsLessLiabilitiesMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Other Assets Less Liabilities [Member]" } } }, "auth_ref": [] }, "oef_OtherCategory1Axis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "OtherCategory1Axis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Other Category 1 [Axis]" } } }, "auth_ref": [ "r68" ] }, "oef_OtherCategory1Domain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "OtherCategory1Domain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Other Category 1 [Domain]" } } }, "auth_ref": [ "r68" ] }, "oef_OtherCategory2Axis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "OtherCategory2Axis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Other Category 2 [Axis]" } } }, "auth_ref": [ "r68" ] }, "oef_OtherCategory2Domain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "OtherCategory2Domain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Other Category 2 [Domain]" } } }, "auth_ref": [ "r68" ] }, "nylif_OtherMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "OtherMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Other [Member]" } } }, "auth_ref": [] }, "stpr_PA": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/stpr/2025", "localname": "PA", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "PENNSYLVANIA" } } }, "auth_ref": [] }, "nylif_PACCARIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "PACCARIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "PACCAR Inc [Member]" } } }, "auth_ref": [] }, "oef_PctOfNav": { "xbrltype": "percentItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "PctOfNav", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Percent of Net Asset Value" } } }, "auth_ref": [ "r68" ] }, "oef_PctOfNetLongExposure": { "xbrltype": "percentItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "PctOfNetLongExposure", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Percent of Net Long Exposure" } } }, "auth_ref": [ "r68" ] }, "oef_PctOfNetShortExposure": { "xbrltype": "percentItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "PctOfNetShortExposure", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Percent of Net Short Exposure" } } }, "auth_ref": [ "r68" ] }, "oef_PctOfTotalInv": { "xbrltype": "percentItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "PctOfTotalInv", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Percent of Total Investments" } } }, "auth_ref": [ "r68" ] }, "oef_PctOfTotalLongExposure": { "xbrltype": "percentItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "PctOfTotalLongExposure", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Percent of Total Long Exposure" } } }, "auth_ref": [ "r68" ] }, "oef_PctOfTotalShortExposure": { "xbrltype": "percentItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "PctOfTotalShortExposure", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Percent of Total Short Exposure" } } }, "auth_ref": [ "r68" ] }, "oef_PerfInceptionDate": { "xbrltype": "dateItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "PerfInceptionDate", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Performance Inception Date" } } }, "auth_ref": [ "r54" ] }, "oef_PerfTableMarketIndexChngdTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "PerfTableMarketIndexChngdTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Performance Table Market Index Changed [Text Block]" } } }, "auth_ref": [ "r61" ] }, "oef_PerformancePastDoesNotIndicateFuture": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "PerformancePastDoesNotIndicateFuture", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Performance Past Does Not Indicate Future [Text]" } } }, "auth_ref": [ "r56", "r80" ] }, "nylif_PfizerIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "PfizerIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Pfizer Inc [Member]" } } }, "auth_ref": [] }, "nylif_PharmaceuticalsMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "PharmaceuticalsMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Pharmaceuticals [Member]" } } }, "auth_ref": [] }, "nylif_PlanetLabsPBC050Due101530Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "PlanetLabsPBC050Due101530Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Planet Labs PBC 0 50 due 10 15 30 [Member]" } } }, "auth_ref": [] }, "us-gaap_PreferredStockMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "PreferredStockMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Preferred Stock [Member]", "documentation": "Preferred shares may provide a preferential dividend to the dividend on common stock and may take precedence over common stock in the event of a liquidation. Preferred shares typically represent an ownership interest in the company." } } }, "auth_ref": [ "r31", "r32", "r34", "r35", "r36", "r37", "r96", "r98" ] }, "oef_PreviousInvestmentAdviserTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "PreviousInvestmentAdviserTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Previous Investment Adviser [Text Block]" } } }, "auth_ref": [ "r57" ] }, "oef_PriorMarketIndexComparisonTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "PriorMarketIndexComparisonTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Prior Market Index Comparison [Text Block]" } } }, "auth_ref": [ "r61" ] }, "nylif_ProgressiveCorpTheMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "ProgressiveCorpTheMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Progressive Corp The [Member]" } } }, "auth_ref": [] }, "nylif_QXOInc550Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "QXOInc550Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "QXO Inc 5 50 [Member]" } } }, "auth_ref": [] }, "country_RO": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "RO", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "ROMANIA" } } }, "auth_ref": [] }, "us-gaap_RepurchaseAgreementsMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "RepurchaseAgreementsMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Repurchase Agreements [Member]", "documentation": "Investments represented by an agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Such agreements are generally short-term in nature." } } }, "auth_ref": [] }, "nylif_RomanianGovernmentBond51257125Due9163071139Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "RomanianGovernmentBond51257125Due9163071139Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Romanian Government Bond 5 125 7 125 due 9 16 30 7 11 39 [Member]" } } }, "auth_ref": [] }, "nylif_Russell1000GrowthC000018726IndexMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "Russell1000GrowthC000018726IndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Russell 1000 Growth C000018726 Index [Member]" } } }, "auth_ref": [] }, "nylif_Russell1000GrowthIndexMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "Russell1000GrowthIndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Russell 1000 Growth Index [Member]" } } }, "auth_ref": [] }, "nylif_Russell1000ValueC000018732IndexMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "Russell1000ValueC000018732IndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Russell 1000 Value C000018732 Index [Member]" } } }, "auth_ref": [] }, "nylif_Russell1000ValueIndexMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "Russell1000ValueIndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Russell 1000 Value Index [Member]" } } }, "auth_ref": [] }, "nylif_Russell3000C000018721IndexMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "Russell3000C000018721IndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Russell 3000 C000018721 Index [Member]" } } }, "auth_ref": [] }, "nylif_Russell3000IndexMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "Russell3000IndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Russell 3000 Index [Member]" } } }, "auth_ref": [] }, "oef_SalesLoadAxis": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "SalesLoadAxis", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails" ], "lang": { "en-us": { "role": { "label": "Sales Load [Axis]" } } }, "auth_ref": [ "r60" ] }, "nylif_SanFranciscoCityAndCountyAirportCommission500550Due51315155Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "SanFranciscoCityAndCountyAirportCommission500550Due51315155Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "San Francisco City And County Airport Commission 5 00 5 50 due 5 1 31 5 1 55 [Member]" } } }, "auth_ref": [] }, "dei_SecurityExchangeName": { "xbrltype": "edgarExchangeCodeItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "SecurityExchangeName", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Security Exchange Name", "terseLabel": "Exchange", "documentation": "Name of the Exchange on which a security is registered." } } }, "auth_ref": [ "r39" ] }, "nylif_SemiconductorsAndSemiconductorEquipmentMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "SemiconductorsAndSemiconductorEquipmentMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Semiconductors And Semiconductor Equipment [Member]" } } }, "auth_ref": [] }, "nylif_SempraMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "SempraMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Sempra [Member]" } } }, "auth_ref": [] }, "oef_ShareClassDomain": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ShareClassDomain", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport", "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Share Classes" } } }, "auth_ref": [ "r40" ] }, "oef_ShareholderReportAbstract": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ShareholderReportAbstract", "lang": { "en-us": { "role": { "label": "Shareholder Report [Abstract]" } } }, "auth_ref": [ "r60" ] }, "oef_ShareholderReportAnnualOrSemiAnnual": { "xbrltype": "shareholderReportTypeItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ShareholderReportAnnualOrSemiAnnual", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Shareholder Report Annual or Semi-Annual" } } }, "auth_ref": [ "r42" ] }, "oef_ShareholderReportLineItems": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ShareholderReportLineItems", "presentation": [ "http://xbrl.sec.gov/oef/role/NcsrCover", "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Shareholder Report [Line Items]" } } }, "auth_ref": [ "r60" ] }, "oef_ShareholderReportTable": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "ShareholderReportTable", "presentation": [ "http://xbrl.sec.gov/oef/role/NcsrCover", "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Shareholder Report [Table]" } } }, "auth_ref": [ "r60" ] }, "us-gaap_ShortTermInvestmentsMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "ShortTermInvestmentsMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Short-Term Investments [Member]", "documentation": "Investments which are not otherwise included in another category or item that the entity has the intent to sell or dispose of within one year from the date of the balance sheet." } } }, "auth_ref": [ "r19", "r20", "r21", "r22" ] }, "nylif_SoftwareMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "SoftwareMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Software [Member]" } } }, "auth_ref": [] }, "nylif_SoutheastEnergyAuthorityACooperativeDistrict400525Due111351156Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "SoutheastEnergyAuthorityACooperativeDistrict400525Due111351156Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Southeast Energy Authority A Cooperative District 4 00 5 25 due 11 1 35 1 1 56 [Member]" } } }, "auth_ref": [] }, "nylif_SpecialtyRetailMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "SpecialtyRetailMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Specialty Retail [Member]" } } }, "auth_ref": [] }, "nylif_StandardAndPoorS500C000018721IndexMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "StandardAndPoorS500C000018721IndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Standard And Poor s 500 C000018721 Index [Member]" } } }, "auth_ref": [] }, "us-gaap_StandardPoors500IndexMember": { "xbrltype": "domainItemType", "nsuri": "http://fasb.org/us-gaap/2025", "localname": "StandardPoors500IndexMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails", "http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails" ], "lang": { "en-us": { "role": { "label": "Standard & Poor's 500 Index [Member]", "documentation": "Index of 500 large companies trading on stock exchanges in United States of America (US)." } } }, "auth_ref": [ "r102", "r103", "r104" ] }, "nylif_StateOfCalifornia510760Due913510141Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "StateOfCalifornia510760Due913510141Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "State of California 5 10 7 60 due 9 1 35 10 1 41 [Member]" } } }, "auth_ref": [] }, "nylif_StateOfHawaii17185159Due1013010141Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "StateOfHawaii17185159Due1013010141Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "State of Hawaii 1 718 5 159 due 10 1 30 10 1 41 [Member]" } } }, "auth_ref": [] }, "nylif_StateOfIllinois345735Due6152912138Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "StateOfIllinois345735Due6152912138Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "State of Illinois 3 45 7 35 due 6 15 29 12 1 38 [Member]" } } }, "auth_ref": [] }, "nylif_StateOfTexas18445157Due1013010138Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "StateOfTexas18445157Due1013010138Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "State of Texas 1 844 5 157 due 10 1 30 10 1 38 [Member]" } } }, "auth_ref": [] }, "oef_SummaryOfChngLegendTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "SummaryOfChngLegendTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Summary of Change Legend [Text Block]" } } }, "auth_ref": [ "r76" ] }, "country_TR": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/country/2025", "localname": "TR", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "TÜRKIYE", "verboseLabel": "TURKEY" } } }, "auth_ref": [] }, "stpr_TX": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/stpr/2025", "localname": "TX", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "TEXAS" } } }, "auth_ref": [] }, "nylif_TaiwanSemiconductorManufacturingCoLtdMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "TaiwanSemiconductorManufacturingCoLtdMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Taiwan Semiconductor Manufacturing Co Ltd [Member]" } } }, "auth_ref": [] }, "nylif_TalenEnergySupplyLLC6125650Due517302136Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "TalenEnergySupplyLLC6125650Due517302136Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Talen Energy Supply LLC 6 125 6 50 due 5 17 30 2 1 36 [Member]" } } }, "auth_ref": [] }, "nylif_TechnologyHardwareStorageAndPeripheralsMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "TechnologyHardwareStorageAndPeripheralsMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Technology Hardware Storage And Peripherals [Member]" } } }, "auth_ref": [] }, "nylif_TexasInstrumentsIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "TexasInstrumentsIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Texas Instruments Inc [Member]" } } }, "auth_ref": [] }, "dei_TradingSymbol": { "xbrltype": "tradingSymbolItemType", "nsuri": "http://xbrl.sec.gov/dei/2025", "localname": "TradingSymbol", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Trading Symbol", "terseLabel": "Ticker", "documentation": "Trading symbol of an instrument as listed on an exchange." } } }, "auth_ref": [] }, "nylif_TransDigmInc46257125Due8152813134Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "TransDigmInc46257125Due8152813134Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "TransDigm Inc 4 625 7 125 due 8 15 28 1 31 34 [Member]" } } }, "auth_ref": [] }, "nylif_TurkeyGovernmentBond5759875Due1152851147Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "TurkeyGovernmentBond5759875Due1152851147Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Turkey Government Bond 5 75 9 875 due 1 15 28 5 11 47 [Member]" } } }, "auth_ref": [] }, "nylif_UMBS30Year200600Due81489154Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "UMBS30Year200600Due81489154Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "UMBS 30 Year 2 00 6 00 due 8 1 48 9 1 54 [Member]" } } }, "auth_ref": [] }, "nylif_UMBS30Year500550Due91532155Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "UMBS30Year500550Due91532155Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "UMBS 30 Year 5 00 5 50 due 9 1 53 2 1 55 [Member]" } } }, "auth_ref": [] }, "nylif_USGovernmentAndFederalAgenciesMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "USGovernmentAndFederalAgenciesMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "U S Government And Federal Agencies [Member]" } } }, "auth_ref": [] }, "nylif_USTreasuryBonds4625475Due2154621556Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "USTreasuryBonds4625475Due2154621556Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "U S Treasury Bonds 4 625 4 75 due 2 15 46 2 15 56 [Member]" } } }, "auth_ref": [] }, "nylif_USTreasuryDebtMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "USTreasuryDebtMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "U S Treasury Debt [Member]" } } }, "auth_ref": [] }, "nylif_USTreasuryNotes38754125Due4303121536Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "USTreasuryNotes38754125Due4303121536Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "U S Treasury Notes 3 875 4 125 due 4 30 31 2 15 36 [Member]" } } }, "auth_ref": [] }, "oef_UnclassifiedSectorMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "UnclassifiedSectorMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Unclassified Sector [Member]" } } }, "auth_ref": [ "r68" ] }, "nylif_UnitedHealthGroupIncMember": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "UnitedHealthGroupIncMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "UnitedHealth Group Inc [Member]" } } }, "auth_ref": [] }, "oef_UpdPerfInfoLocationTextBlock": { "xbrltype": "textBlockItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "UpdPerfInfoLocationTextBlock", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Updated Performance Information Location [Text Block]" } } }, "auth_ref": [ "r59" ] }, "oef_UpdProspectusEmailAddress": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "UpdProspectusEmailAddress", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Updated Prospectus Email Address" } } }, "auth_ref": [ "r76" ] }, "oef_UpdProspectusPhoneNumber": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "UpdProspectusPhoneNumber", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Updated Prospectus Phone Number" } } }, "auth_ref": [ "r76" ] }, "oef_UpdProspectusWebAddress": { "xbrltype": "stringItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "UpdProspectusWebAddress", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReport" ], "lang": { "en-us": { "role": { "label": "Updated Prospectus Web Address" } } }, "auth_ref": [ "r76" ] }, "nylif_WelltowerOPLLC3125Due71529Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "WelltowerOPLLC3125Due71529Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Welltower OP LLC 3 125 due 7 15 29 [Member]" } } }, "auth_ref": [] }, "nylif_WesternDigitalCorp300Due111528Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "WesternDigitalCorp300Due111528Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Western Digital Corp 3 00 due 11 15 28 [Member]" } } }, "auth_ref": [] }, "oef_WithSalesLoadMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "WithSalesLoadMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails" ], "lang": { "en-us": { "role": { "label": "With Sales Load [Member]" } } }, "auth_ref": [ "r60" ] }, "oef_WithoutSalesLoadMember": { "xbrltype": "domainItemType", "nsuri": "http://xbrl.sec.gov/oef/2025", "localname": "WithoutSalesLoadMember", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails" ], "lang": { "en-us": { "role": { "label": "Without Sales Load [Member]" } } }, "auth_ref": [ "r60" ] }, "nylif_YumBrandsInc36255375Due115304132Member": { "xbrltype": "domainItemType", "nsuri": "http://www.dfinview.com/20260602", "localname": "YumBrandsInc36255375Due115304132Member", "presentation": [ "http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails" ], "lang": { "en-us": { "role": { "label": "Yum Brands Inc 3 625 5 375 due 1 15 30 4 1 32 [Member]" } } }, "auth_ref": [] } } } }, "std_ref": { "r0": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "SubTopic": "30", "Topic": "205", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479910/205-30-50-1" }, "r1": { "role": "http://fasb.org/us-gaap/role/ref/legacyRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "12A", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481573/470-10-45-12A" }, "r2": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "470", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481544/470-10-50-6" }, "r3": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481112/505-10-50-13" }, "r4": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481112/505-10-50-13" }, "r5": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "505", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "13", "Subparagraph": "(h)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481112/505-10-50-13" }, "r6": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-1" }, "r7": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-1" }, "r8": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(c)(2)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-1" }, "r9": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-6" }, "r10": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(c)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-6" }, "r11": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-12(Column A)(Footnote 1))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-1" }, "r12": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-12(Column C)(Footnote 5))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-1" }, "r13": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.12-12A(Column C)(Footnote 4))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-2" }, "r14": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.12-12B(Column A)(Footnote 7))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-3" }, "r15": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.12-12B(Column C)(Footnote 2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-3" }, "r16": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "5D", "Subparagraph": "(SX 210.12-13D(Column A)(Footnote 2)(i))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5D" }, "r17": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "6", "Subparagraph": "(SX 210.12-14(Column F)(Footnote 7))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-6" }, "r18": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "7", "Subparagraph": "(SX 210.12-15(Column A))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-7" }, "r19": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "7", "Subparagraph": "(SX 210.12-15(Column B))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-7" }, "r20": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "7", "Subparagraph": "(SX 210.12-15(Column C))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-7" }, "r21": { "role": "http://www.xbrl.org/2003/role/disclosureRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "7", "Subparagraph": "(SX 210.12-15(Column D))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-7" }, "r22": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "7", "Subparagraph": "(SX 210.12-15(Column A))", "SubTopic": "320", "Topic": "946", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-7" }, "r23": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "15", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479294/326-20-55-15" }, "r24": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1" }, "r25": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(iv)(01)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1" }, "r26": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(c)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-5" }, "r27": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(c)(iv)(01)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-5" }, "r28": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "17", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480482/715-20-55-17" }, "r29": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "820", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "100", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147482078/820-10-55-100" }, "r30": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "860", "SubTopic": "30", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "4", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481395/860-30-55-4" }, "r31": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(b)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-1" }, "r32": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Subparagraph": "(a)(1)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478795/946-210-50-6" }, "r33": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "210", "Name": "Accounting Standards Codification", "Section": "55", "Paragraph": "1", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477439/946-210-55-1" }, "r34": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-12(Column A)(Footnote 2)(i))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-1" }, "r35": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.12-12A(Column A)(Footnote 2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-2" }, "r36": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.12-12B(Column A)(Footnote 1)(a))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-3" }, "r37": { "role": "http://www.xbrl.org/2003/role/exampleRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "6", "Subparagraph": "(SX 210.12-14(Column A)(Footnote 2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-6" }, "r38": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Exchange Act", "Number": "240", "Section": "12", "Subsection": "b-2" }, "r39": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Exchange Act", "Number": "240", "Section": "12", "Subsection": "d1-1" }, "r40": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "1", "Subsection": "a", "Paragraph": "1" }, "r41": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "b", "Paragraph": "1" }, "r42": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "b", "Paragraph": "3" }, "r43": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "b", "Paragraph": "4" }, "r44": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "b", "Paragraph": "5" }, "r45": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "b", "Paragraph": "instruction", "Subparagraph": "2" }, "r46": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "c" }, "r47": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "c", "Paragraph": "ii" }, "r48": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "c", "Paragraph": "iii" }, "r49": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "c", "Paragraph": "instruction", "Sentence": "1", "Clause": "b" }, "r50": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "c", "Paragraph": "instruction", "Subparagraph": "1", "Clause": "c" }, "r51": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "c", "Paragraph": "instruction", "Subparagraph": "1", "Clause": "d" }, "r52": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "1" }, "r53": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "2" }, "r54": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "2", "Subparagraph": "i" }, "r55": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "2", "Subparagraph": "iii", "Clause": "B" }, "r56": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "2", "Subparagraph": "iiii", "Clause": "A" }, "r57": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "2", "Subparagraph": "instruction", "Clause": "12" }, "r58": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "2", "Subparagraph": "instruction", "Clause": "14" }, "r59": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "2", "Subparagraph": "instruction", "Clause": "15" }, "r60": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "2", "Subparagraph": "instruction", "Clause": "7" }, "r61": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "2", "Subparagraph": "instruction", "Clause": "8" }, "r62": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "3" }, "r63": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "4" }, "r64": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "4", "Subparagraph": "instruction", "Clause": "3" }, "r65": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "d", "Paragraph": "4", "Subparagraph": "instruction", "Clause": "4" }, "r66": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "e" }, "r67": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "e", "Paragraph": "instruction", "Subparagraph": "6" }, "r68": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "f" }, "r69": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "g" }, "r70": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "g", "Paragraph": "1" }, "r71": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "g", "Paragraph": "2" }, "r72": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "g", "Paragraph": "3" }, "r73": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "g", "Paragraph": "4" }, "r74": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "g", "Paragraph": "5" }, "r75": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "g", "Paragraph": "6" }, "r76": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "g", "Paragraph": "instruction", "Subparagraph": "2" }, "r77": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "h", "Paragraph": "1" }, "r78": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "27A", "Subsection": "h", "Paragraph": "2" }, "r79": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "3", "Subsection": "instruction", "Paragraph": "1", "Subparagraph": "d", "Sentence": "i" }, "r80": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "4", "Subsection": "b", "Paragraph": "2", "Subparagraph": "i" }, "r81": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Form N-1A", "Section": "4", "Subsection": "b", "Paragraph": "2", "Subparagraph": "iii" }, "r82": { "role": "http://www.xbrl.org/2003/role/presentationRef", "Publisher": "SEC", "Name": "Regulation S-T", "Number": "232", "Section": "313" }, "r83": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "23", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483421/250-10-45-23" }, "r84": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "24", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483421/250-10-45-24" }, "r85": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "250", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "6", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147483443/250-10-50-6" }, "r86": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "2", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-2" }, "r87": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "3", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-3" }, "r88": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5" }, "r89": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(f)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5" }, "r90": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "320", "SubTopic": "10", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5B", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147481800/320-10-50-5B" }, "r91": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "326", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(b)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479319/326-20-50-5" }, "r92": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(d)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-1" }, "r93": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "715", "SubTopic": "20", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "5", "Subparagraph": "(c)(ii)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480506/715-20-50-5" }, "r94": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "815", "SubTopic": "40", "Name": "Accounting Standards Codification", "Section": "65", "Paragraph": "1", "Subparagraph": "(e)(3)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480175/815-40-65-1" }, "r95": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "944", "SubTopic": "80", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "1", "Subparagraph": "(e)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147480109/944-80-50-1" }, "r96": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "45", "Paragraph": "4", "Subparagraph": "(a)", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478009/946-205-45-4" }, "r97": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "205", "Name": "Accounting Standards Codification", "Section": "50", "Paragraph": "27", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147478494/946-205-50-27" }, "r98": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "220", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.6-09(4)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147479134/946-220-S99-3" }, "r99": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "1", "Subparagraph": "(SX 210.12-12(Column A)(Footnote 2)(ii))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-1" }, "r100": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "2", "Subparagraph": "(SX 210.12-12A(Column A)(Footnote 2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-2" }, "r101": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "3", "Subparagraph": "(SX 210.12-12B(Column A)(Footnote 1)(b))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-3" }, "r102": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "5", "Subparagraph": "(SX 210.12-13(Column A)(Footnote 3))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5" }, "r103": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "5C", "Subparagraph": "(SX 210.12-13C(Column A)(Footnote 3))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5C" }, "r104": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "5C", "Subparagraph": "(SX 210.12-13C(Column B)(Footnote 3))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-5C" }, "r105": { "role": "http://www.xbrl.org/2009/role/commonPracticeRef", "Topic": "946", "SubTopic": "320", "Name": "Accounting Standards Codification", "Section": "S99", "Paragraph": "6", "Subparagraph": "(SX 210.12-14(Column A)(Footnote 2))", "Publisher": "FASB", "URI": "https://asc.fasb.org/1943274/2147477271/946-320-S99-6" } } }