<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2026"
  xmlns:ffd="http://xbrl.sec.gov/ffd/2026"
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  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <link:schemaRef
      xlink:href="https://xbrl.sec.gov/ffd/2026/ffd-2026.xsd"
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    <context id="rc">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000883265</identifier>
        </entity>
        <period>
            <startDate>2026-08-24</startDate>
            <endDate>2026-08-24</endDate>
        </period>
    </context>
    <context id="offrl_1">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000883265</identifier>
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                <xbrldi:typedMember dimension="ffd:OfferingAxis">
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        <period>
            <startDate>2026-08-24</startDate>
            <endDate>2026-08-24</endDate>
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    <context id="offrl_2">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000883265</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>2</dei:lineNo>
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        <period>
            <startDate>2026-08-24</startDate>
            <endDate>2026-08-24</endDate>
        </period>
    </context>
    <context id="offrl_3">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000883265</identifier>
            <segment>
                <xbrldi:typedMember dimension="ffd:OfferingAxis">
                    <dei:lineNo>3</dei:lineNo>
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        </entity>
        <period>
            <startDate>2026-08-24</startDate>
            <endDate>2026-08-24</endDate>
        </period>
    </context>
    <unit id="USD">
        <measure>iso4217:USD</measure>
    </unit>
    <unit id="pure">
        <measure>pure</measure>
    </unit>
    <unit id="Shares">
        <measure>shares</measure>
    </unit>
    <ffd:FormTp contextRef="rc" id="ixv-366">N-2</ffd:FormTp>
    <ffd:SubmissnTp contextRef="rc" id="ixv-367">N-2/A</ffd:SubmissnTp>
    <ffd:FeeExhibitTp contextRef="rc" id="ixv-368">EX-FILING FEES</ffd:FeeExhibitTp>
    <ffd:RegnFileNb contextRef="rc" id="ixv-369">333-296795</ffd:RegnFileNb>
    <dei:EntityCentralIndexKey contextRef="rc" id="ixv-370">0000883265</dei:EntityCentralIndexKey>
    <dei:EntityRegistrantName contextRef="rc" id="ixv-371">Invesco Trust for Investment Grade New York Municipals</dei:EntityRegistrantName>
    <ffd:OfferingTableNa contextRef="rc" id="hiddenrcOfferingTableNa" xsi:nil="true"/>
    <ffd:OffsetTableNa contextRef="rc" id="hiddenrcOffsetTableNa">N/A</ffd:OffsetTableNa>
    <ffd:CombinedProspectusTableNa contextRef="rc" id="hiddenrcCombinedProspectusTableNa">N/A</ffd:CombinedProspectusTableNa>
    <ffd:FormTp contextRef="rc" id="ixv-417">N-2</ffd:FormTp>
    <dei:EntityRegistrantName contextRef="rc" id="ixv-418">Invesco Trust for Investment Grade New York Municipals</dei:EntityRegistrantName>
    <ffd:PrevslyPdFlg contextRef="offrl_1" id="ixv-419">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="offrl_1" id="ixv-420">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_1" id="ixv-421">Common Shares, $0.01 par value per share</ffd:OfferingSctyTitl>
    <ffd:FeesOthrRuleFlg contextRef="offrl_1" id="ixv-422">true</ffd:FeesOthrRuleFlg>
    <ffd:AmtSctiesRegd
      contextRef="offrl_1"
      decimals="0"
      id="ixv-423"
      unitRef="Shares">8000000</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="offrl_1"
      decimals="2"
      id="ixv-424"
      unitRef="USD">11.07</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="offrl_1"
      decimals="2"
      id="ixv-425"
      unitRef="USD">88560000.00</ffd:MaxAggtOfferingPric>
    <ffd:FeeRate
      contextRef="offrl_1"
      decimals="7"
      id="ixv-426"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:FeeAmt
      contextRef="offrl_1"
      decimals="2"
      id="ixv-427"
      unitRef="USD">12230.14</ffd:FeeAmt>
    <ffd:PrevslyPdFlg contextRef="offrl_2" id="ixv-428">false</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="offrl_2" id="ixv-429">Other</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_2" id="ixv-430">Rights to purchase Common Shares</ffd:OfferingSctyTitl>
    <ffd:FeesOthrRuleFlg contextRef="offrl_2" id="ixv-431">true</ffd:FeesOthrRuleFlg>
    <ffd:FeeRate
      contextRef="offrl_2"
      decimals="7"
      id="ixv-432"
      unitRef="pure">0.0001381</ffd:FeeRate>
    <ffd:FeeAmt
      contextRef="offrl_2"
      decimals="2"
      id="ixv-433"
      unitRef="USD">0.00</ffd:FeeAmt>
    <ffd:PrevslyPdFlg contextRef="offrl_3" id="ixv-434">true</ffd:PrevslyPdFlg>
    <ffd:OfferingSctyTp contextRef="offrl_3" id="ixv-435">Equity</ffd:OfferingSctyTp>
    <ffd:OfferingSctyTitl contextRef="offrl_3" id="ixv-436">Common Shares, $0.01 par value per share</ffd:OfferingSctyTitl>
    <ffd:FeesOthrRuleFlg contextRef="offrl_3" id="ixv-437">true</ffd:FeesOthrRuleFlg>
    <ffd:AmtSctiesRegd
      contextRef="offrl_3"
      decimals="0"
      id="ixv-438"
      unitRef="Shares">1000000</ffd:AmtSctiesRegd>
    <ffd:MaxOfferingPricPerScty
      contextRef="offrl_3"
      decimals="2"
      id="ixv-439"
      unitRef="USD">11.13</ffd:MaxOfferingPricPerScty>
    <ffd:MaxAggtOfferingPric
      contextRef="offrl_3"
      decimals="2"
      id="ixv-440"
      unitRef="USD">11130000.00</ffd:MaxAggtOfferingPric>
    <ffd:FeeAmt
      contextRef="offrl_3"
      decimals="2"
      id="ixv-441"
      unitRef="USD">1537.05</ffd:FeeAmt>
    <ffd:TtlOfferingAmt contextRef="rc" decimals="2" id="ixv-442" unitRef="USD">99690000.00</ffd:TtlOfferingAmt>
    <ffd:TtlFeeAmt contextRef="rc" decimals="2" id="ixv-443" unitRef="USD">13767.19</ffd:TtlFeeAmt>
    <ffd:TtlPrevslyPdAmt contextRef="rc" decimals="2" id="ixv-444" unitRef="USD">1537.05</ffd:TtlPrevslyPdAmt>
    <ffd:TtlOffsetAmt contextRef="rc" decimals="2" id="ixv-445" unitRef="USD">0.00</ffd:TtlOffsetAmt>
    <ffd:NetFeeAmt contextRef="rc" decimals="2" id="ixv-446" unitRef="USD">12230.14</ffd:NetFeeAmt>
    <ffd:OfferingNote contextRef="offrl_1" id="ixv-447">The Registrant is relying upon Rule 457(c) under the Securities Act of 1933 ("Securities Act") to calculate the registration fee. The maximum aggregate offering price is estimated solely for purposes of determining the registration fee based on the average of the high and low sales prices of the shares of Common Shares, as reported by the New York Stock Exchange on August 17, 2026, in accordance with Rule 457(c) under the Securities Act. The proposed maximum offering price per security will be determined from time to time by the Registrant in connection with the sale by the Registrant of the securities registered under this Registration Statement. Amount shown under "Maximum Aggregate Offering Price" and "Amount of Registration Fee" reflect $1,537.06 previously paid to register 1,000,000 shares of Common Shares, plus $12,230.14 to register the additional 8,000,000 shares of Common Shares registered hereby.</ffd:OfferingNote>
    <ffd:OfferingNote contextRef="offrl_2" id="ixv-448">No separate consideration will be received by the Registrant. Any shares issued pursuant to an offering of rights to purchase Common Shares, including any shares issued pursuant to an over-subscription privilege or a secondary over-subscription privilege, will be shares registered under this Registration Statement. </ffd:OfferingNote>
    <ffd:OfferingNote contextRef="offrl_3" id="ixv-449">The Registrant previously paid $1,537.06 in connection with the filing of the Registrant's Registration Statement on Form N-2 (File No. 333-296795) with the Securities and Exchange Commission on June 15, 2026.</ffd:OfferingNote>
</xbrl>
