v3.26.3
Shareholder Report, Holdings (Details)
Jul. 31, 2026
C000136710 | Ghana Government International Bonds_5.000_7/3/2035  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000136710 | Argentina Republic Government International Bonds_4.125_7/9/2035  
Holdings [Line Items]  
Percent of Total Investments 1.40%
C000136710 | Republic of Cameroon International Bonds_8.875_1/30/2033  
Holdings [Line Items]  
Percent of Total Investments 1.20%
C000136710 | Republic of Kenya Infrastructure Bonds_18.461_8/9/2032  
Holdings [Line Items]  
Percent of Total Investments 1.20%
C000136710 | Kyrgyz Republic International Bonds_7.750_6/3/2030  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000136710 | Angola Government International Bonds_9.125_11/26/2049  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000136710 | Ivory Coast Government International Bonds_6.625_3/22/2048  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000136710 | Nigeria OMO Bills_21.375_9/15/2026  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000136710 | Egypt Government International Bonds_8.875_5/29/2050  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000136710 | Angola Government International Bonds_9.375_5/8/2048  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000136710 | Kenya  
Holdings [Line Items]  
Percent of Total Investments 3.70%
C000136710 | Uganda  
Holdings [Line Items]  
Percent of Total Investments 4.20%
C000136710 | Ghana  
Holdings [Line Items]  
Percent of Total Investments 4.20%
C000136710 | Kazakhstan  
Holdings [Line Items]  
Percent of Total Investments 4.50%
C000136710 | Egypt  
Holdings [Line Items]  
Percent of Total Investments 4.60%
C000136710 | Supranational  
Holdings [Line Items]  
Percent of Total Investments 4.70%
C000136710 | Angola  
Holdings [Line Items]  
Percent of Total Investments 4.90%
C000136710 | Argentina  
Holdings [Line Items]  
Percent of Total Investments 5.10%
C000136710 | Nigeria  
Holdings [Line Items]  
Percent of Total Investments 6.00%
C000136710 | United States  
Holdings [Line Items]  
Percent of Total Investments 6.00%
C000136710 | IndustryReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
C000136710 | IndustryHolding Companies - Diversified  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000136710 | IndustryElectric  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000136710 | IndustryTelecommunications  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000136710 | IndustryOil & Gas  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000136710 | IndustryInvestment Companies  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000136710 | IndustryDiversified Financial Services  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
C000136710 | IndustryMulti-National  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
C000136710 | IndustryBanks  
Holdings [Line Items]  
Percent of Net Asset Value 9.90%
C000136710 | IndustryForeign Sovereign Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 73.80%
C000136710 | AssetForeign Sovereign Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 75.70%
C000136710 | AssetInvestment Companies  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
C000136710 | AssetCredit-Linked Notes  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
C000136710 | AssetCorporate Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000136710 | AssetForeign Corporate Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000136711 | Ghana Government International Bonds_5.000_7/3/2035  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000136711 | Argentina Republic Government International Bonds_4.125_7/9/2035  
Holdings [Line Items]  
Percent of Total Investments 1.40%
C000136711 | Republic of Cameroon International Bonds_8.875_1/30/2033  
Holdings [Line Items]  
Percent of Total Investments 1.20%
C000136711 | Republic of Kenya Infrastructure Bonds_18.461_8/9/2032  
Holdings [Line Items]  
Percent of Total Investments 1.20%
C000136711 | Kyrgyz Republic International Bonds_7.750_6/3/2030  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000136711 | Angola Government International Bonds_9.125_11/26/2049  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000136711 | Ivory Coast Government International Bonds_6.625_3/22/2048  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000136711 | Nigeria OMO Bills_21.375_9/15/2026  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000136711 | Egypt Government International Bonds_8.875_5/29/2050  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000136711 | Angola Government International Bonds_9.375_5/8/2048  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000136711 | Kenya  
Holdings [Line Items]  
Percent of Total Investments 3.70%
C000136711 | Uganda  
Holdings [Line Items]  
Percent of Total Investments 4.20%
C000136711 | Ghana  
Holdings [Line Items]  
Percent of Total Investments 4.20%
C000136711 | Kazakhstan  
Holdings [Line Items]  
Percent of Total Investments 4.50%
C000136711 | Egypt  
Holdings [Line Items]  
Percent of Total Investments 4.60%
C000136711 | Supranational  
Holdings [Line Items]  
Percent of Total Investments 4.70%
C000136711 | Angola  
Holdings [Line Items]  
Percent of Total Investments 4.90%
C000136711 | Argentina  
Holdings [Line Items]  
Percent of Total Investments 5.10%
C000136711 | Nigeria  
Holdings [Line Items]  
Percent of Total Investments 6.00%
C000136711 | United States  
Holdings [Line Items]  
Percent of Total Investments 6.00%
C000136711 | IndustryReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
C000136711 | IndustryHolding Companies - Diversified  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000136711 | IndustryElectric  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000136711 | IndustryTelecommunications  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000136711 | IndustryOil & Gas  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000136711 | IndustryInvestment Companies  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000136711 | IndustryDiversified Financial Services  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
C000136711 | IndustryMulti-National  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
C000136711 | IndustryBanks  
Holdings [Line Items]  
Percent of Net Asset Value 9.90%
C000136711 | IndustryForeign Sovereign Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 73.80%
C000136711 | AssetForeign Sovereign Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 75.70%
C000136711 | AssetInvestment Companies  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
C000136711 | AssetCredit-Linked Notes  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
C000136711 | AssetCorporate Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000136711 | AssetForeign Corporate Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000136713 | Ghana Government International Bonds_5.000_7/3/2035  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000136713 | Argentina Republic Government International Bonds_4.125_7/9/2035  
Holdings [Line Items]  
Percent of Total Investments 1.40%
C000136713 | Republic of Cameroon International Bonds_8.875_1/30/2033  
Holdings [Line Items]  
Percent of Total Investments 1.20%
C000136713 | Republic of Kenya Infrastructure Bonds_18.461_8/9/2032  
Holdings [Line Items]  
Percent of Total Investments 1.20%
C000136713 | Kyrgyz Republic International Bonds_7.750_6/3/2030  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000136713 | Angola Government International Bonds_9.125_11/26/2049  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000136713 | Ivory Coast Government International Bonds_6.625_3/22/2048  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000136713 | Nigeria OMO Bills_21.375_9/15/2026  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000136713 | Egypt Government International Bonds_8.875_5/29/2050  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000136713 | Angola Government International Bonds_9.375_5/8/2048  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000136713 | Kenya  
Holdings [Line Items]  
Percent of Total Investments 3.70%
C000136713 | Uganda  
Holdings [Line Items]  
Percent of Total Investments 4.20%
C000136713 | Ghana  
Holdings [Line Items]  
Percent of Total Investments 4.20%
C000136713 | Kazakhstan  
Holdings [Line Items]  
Percent of Total Investments 4.50%
C000136713 | Egypt  
Holdings [Line Items]  
Percent of Total Investments 4.60%
C000136713 | Supranational  
Holdings [Line Items]  
Percent of Total Investments 4.70%
C000136713 | Angola  
Holdings [Line Items]  
Percent of Total Investments 4.90%
C000136713 | Argentina  
Holdings [Line Items]  
Percent of Total Investments 5.10%
C000136713 | Nigeria  
Holdings [Line Items]  
Percent of Total Investments 6.00%
C000136713 | United States  
Holdings [Line Items]  
Percent of Total Investments 6.00%
C000136713 | IndustryReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
C000136713 | IndustryHolding Companies - Diversified  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000136713 | IndustryElectric  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000136713 | IndustryTelecommunications  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000136713 | IndustryOil & Gas  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000136713 | IndustryInvestment Companies  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000136713 | IndustryDiversified Financial Services  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
C000136713 | IndustryMulti-National  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
C000136713 | IndustryBanks  
Holdings [Line Items]  
Percent of Net Asset Value 9.90%
C000136713 | IndustryForeign Sovereign Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 73.80%
C000136713 | AssetForeign Sovereign Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 75.70%
C000136713 | AssetInvestment Companies  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
C000136713 | AssetCredit-Linked Notes  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
C000136713 | AssetCorporate Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000136713 | AssetForeign Corporate Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000136712 | Ghana Government International Bonds_5.000_7/3/2035  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000136712 | Argentina Republic Government International Bonds_4.125_7/9/2035  
Holdings [Line Items]  
Percent of Total Investments 1.40%
C000136712 | Republic of Cameroon International Bonds_8.875_1/30/2033  
Holdings [Line Items]  
Percent of Total Investments 1.20%
C000136712 | Republic of Kenya Infrastructure Bonds_18.461_8/9/2032  
Holdings [Line Items]  
Percent of Total Investments 1.20%
C000136712 | Kyrgyz Republic International Bonds_7.750_6/3/2030  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000136712 | Angola Government International Bonds_9.125_11/26/2049  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000136712 | Ivory Coast Government International Bonds_6.625_3/22/2048  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000136712 | Nigeria OMO Bills_21.375_9/15/2026  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000136712 | Egypt Government International Bonds_8.875_5/29/2050  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000136712 | Angola Government International Bonds_9.375_5/8/2048  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000136712 | Kenya  
Holdings [Line Items]  
Percent of Total Investments 3.70%
C000136712 | Uganda  
Holdings [Line Items]  
Percent of Total Investments 4.20%
C000136712 | Ghana  
Holdings [Line Items]  
Percent of Total Investments 4.20%
C000136712 | Kazakhstan  
Holdings [Line Items]  
Percent of Total Investments 4.50%
C000136712 | Egypt  
Holdings [Line Items]  
Percent of Total Investments 4.60%
C000136712 | Supranational  
Holdings [Line Items]  
Percent of Total Investments 4.70%
C000136712 | Angola  
Holdings [Line Items]  
Percent of Total Investments 4.90%
C000136712 | Argentina  
Holdings [Line Items]  
Percent of Total Investments 5.10%
C000136712 | Nigeria  
Holdings [Line Items]  
Percent of Total Investments 6.00%
C000136712 | United States  
Holdings [Line Items]  
Percent of Total Investments 6.00%
C000136712 | IndustryReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
C000136712 | IndustryHolding Companies - Diversified  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000136712 | IndustryElectric  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000136712 | IndustryTelecommunications  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000136712 | IndustryOil & Gas  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000136712 | IndustryInvestment Companies  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000136712 | IndustryDiversified Financial Services  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
C000136712 | IndustryMulti-National  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
C000136712 | IndustryBanks  
Holdings [Line Items]  
Percent of Net Asset Value 9.90%
C000136712 | IndustryForeign Sovereign Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 73.80%
C000136712 | AssetForeign Sovereign Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 75.70%
C000136712 | AssetInvestment Companies  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
C000136712 | AssetCredit-Linked Notes  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
C000136712 | AssetCorporate Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000136712 | AssetForeign Corporate Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000136714 | Ghana Government International Bonds_5.000_7/3/2035  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000136714 | Argentina Republic Government International Bonds_4.125_7/9/2035  
Holdings [Line Items]  
Percent of Total Investments 1.40%
C000136714 | Republic of Cameroon International Bonds_8.875_1/30/2033  
Holdings [Line Items]  
Percent of Total Investments 1.20%
C000136714 | Republic of Kenya Infrastructure Bonds_18.461_8/9/2032  
Holdings [Line Items]  
Percent of Total Investments 1.20%
C000136714 | Kyrgyz Republic International Bonds_7.750_6/3/2030  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000136714 | Angola Government International Bonds_9.125_11/26/2049  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000136714 | Ivory Coast Government International Bonds_6.625_3/22/2048  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000136714 | Nigeria OMO Bills_21.375_9/15/2026  
Holdings [Line Items]  
Percent of Total Investments 1.10%
C000136714 | Egypt Government International Bonds_8.875_5/29/2050  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000136714 | Angola Government International Bonds_9.375_5/8/2048  
Holdings [Line Items]  
Percent of Total Investments 1.00%
C000136714 | Kenya  
Holdings [Line Items]  
Percent of Total Investments 3.70%
C000136714 | Uganda  
Holdings [Line Items]  
Percent of Total Investments 4.20%
C000136714 | Ghana  
Holdings [Line Items]  
Percent of Total Investments 4.20%
C000136714 | Kazakhstan  
Holdings [Line Items]  
Percent of Total Investments 4.50%
C000136714 | Egypt  
Holdings [Line Items]  
Percent of Total Investments 4.60%
C000136714 | Supranational  
Holdings [Line Items]  
Percent of Total Investments 4.70%
C000136714 | Angola  
Holdings [Line Items]  
Percent of Total Investments 4.90%
C000136714 | Argentina  
Holdings [Line Items]  
Percent of Total Investments 5.10%
C000136714 | Nigeria  
Holdings [Line Items]  
Percent of Total Investments 6.00%
C000136714 | United States  
Holdings [Line Items]  
Percent of Total Investments 6.00%
C000136714 | IndustryReal Estate  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
C000136714 | IndustryHolding Companies - Diversified  
Holdings [Line Items]  
Percent of Net Asset Value 0.50%
C000136714 | IndustryElectric  
Holdings [Line Items]  
Percent of Net Asset Value 0.80%
C000136714 | IndustryTelecommunications  
Holdings [Line Items]  
Percent of Net Asset Value 1.20%
C000136714 | IndustryOil & Gas  
Holdings [Line Items]  
Percent of Net Asset Value 1.40%
C000136714 | IndustryInvestment Companies  
Holdings [Line Items]  
Percent of Net Asset Value 2.40%
C000136714 | IndustryDiversified Financial Services  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
C000136714 | IndustryMulti-National  
Holdings [Line Items]  
Percent of Net Asset Value 4.70%
C000136714 | IndustryBanks  
Holdings [Line Items]  
Percent of Net Asset Value 9.90%
C000136714 | IndustryForeign Sovereign Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 73.80%
C000136714 | AssetForeign Sovereign Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 75.70%
C000136714 | AssetInvestment Companies  
Holdings [Line Items]  
Percent of Net Asset Value 7.90%
C000136714 | AssetCredit-Linked Notes  
Holdings [Line Items]  
Percent of Net Asset Value 6.00%
C000136714 | AssetCorporate Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 5.50%
C000136714 | AssetForeign Corporate Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 4.90%
C000221417 | U.S. Treasury Bonds_3.375_11/15/2048  
Holdings [Line Items]  
Percent of Total Investments 5.00%
C000221417 | U.S. Treasury Notes_4.375_5/15/2036  
Holdings [Line Items]  
Percent of Total Investments 3.20%
C000221417 | U.S. Treasury Notes_4.500_11/15/2033  
Holdings [Line Items]  
Percent of Total Investments 3.10%
C000221417 | U.S. Treasury Notes_3.750_2/28/2033  
Holdings [Line Items]  
Percent of Total Investments 2.20%
C000221417 | U.S. Treasury Bonds_1.750_8/15/2041  
Holdings [Line Items]  
Percent of Total Investments 2.00%
C000221417 | RCKT Mortgage Trust_6.902_6/25/2043  
Holdings [Line Items]  
Percent of Total Investments 1.90%
C000221417 | U.S. Treasury Notes_4.000_11/15/2035  
Holdings [Line Items]  
Percent of Total Investments 1.80%
C000221417 | U.S. Treasury Notes_4.125_2/15/2036  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000221417 | U.S. Treasury Bonds_2.500_2/15/2045  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000221417 | U.S. Treasury Bonds_4.875_8/15/2045  
Holdings [Line Items]  
Percent of Total Investments 1.40%
C000221417 | United States  
Holdings [Line Items]  
Percent of Total Investments 96.70%
C000221417 | France  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000221417 | Bermuda  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000221417 | China  
Holdings [Line Items]  
Percent of Total Investments 0.20%
C000221417 | Mexico  
Holdings [Line Items]  
Percent of Total Investments 0.20%
C000221417 | United Kingdom  
Holdings [Line Items]  
Percent of Total Investments 0.30%
C000221417 | Ireland  
Holdings [Line Items]  
Percent of Total Investments 0.60%
C000221417 | Canada  
Holdings [Line Items]  
Percent of Total Investments 1.80%
C000221417 | IndustryElectric  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000221417 | IndustryDiversified Financial Services  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000221417 | IndustryBanks  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000221417 | IndustryInsurance  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000221417 | IndustryMunicipal  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000221417 | IndustryCommercial Mortgage-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000221417 | IndustryU.S. Agency Mortgage-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000221417 | IndustryAsset-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 10.30%
C000221417 | IndustryCollateralized Mortgage Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 12.90%
C000221417 | IndustryU.S. Treasury Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 28.20%
C000221417 | AssetForeign Sovereign Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
C000221417 | AssetCorporate Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 28.70%
C000221417 | AssetForeign Corporate Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000221417 | AssetU.S. Treasury Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 28.20%
C000221417 | AssetCollateralized Mortgage Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 12.90%
C000221417 | AssetAsset-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 10.30%
C000221417 | AssetU.S. Agency Mortgage-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 7.50%
C000221417 | AssetCommercial Mortgage-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000221417 | AssetMunicipal Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000221418 | U.S. Treasury Bonds_3.375_11/15/2048  
Holdings [Line Items]  
Percent of Total Investments 5.00%
C000221418 | U.S. Treasury Notes_4.375_5/15/2036  
Holdings [Line Items]  
Percent of Total Investments 3.20%
C000221418 | U.S. Treasury Notes_4.500_11/15/2033  
Holdings [Line Items]  
Percent of Total Investments 3.10%
C000221418 | U.S. Treasury Notes_3.750_2/28/2033  
Holdings [Line Items]  
Percent of Total Investments 2.20%
C000221418 | U.S. Treasury Bonds_1.750_8/15/2041  
Holdings [Line Items]  
Percent of Total Investments 2.00%
C000221418 | RCKT Mortgage Trust_6.902_6/25/2043  
Holdings [Line Items]  
Percent of Total Investments 1.90%
C000221418 | U.S. Treasury Notes_4.000_11/15/2035  
Holdings [Line Items]  
Percent of Total Investments 1.80%
C000221418 | U.S. Treasury Notes_4.125_2/15/2036  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000221418 | U.S. Treasury Bonds_2.500_2/15/2045  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000221418 | U.S. Treasury Bonds_4.875_8/15/2045  
Holdings [Line Items]  
Percent of Total Investments 1.40%
C000221418 | United States  
Holdings [Line Items]  
Percent of Total Investments 96.70%
C000221418 | France  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000221418 | Bermuda  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000221418 | China  
Holdings [Line Items]  
Percent of Total Investments 0.20%
C000221418 | Mexico  
Holdings [Line Items]  
Percent of Total Investments 0.20%
C000221418 | United Kingdom  
Holdings [Line Items]  
Percent of Total Investments 0.30%
C000221418 | Ireland  
Holdings [Line Items]  
Percent of Total Investments 0.60%
C000221418 | Canada  
Holdings [Line Items]  
Percent of Total Investments 1.80%
C000221418 | IndustryElectric  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000221418 | IndustryDiversified Financial Services  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000221418 | IndustryBanks  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000221418 | IndustryInsurance  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000221418 | IndustryMunicipal  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000221418 | IndustryCommercial Mortgage-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000221418 | IndustryU.S. Agency Mortgage-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000221418 | IndustryAsset-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 10.30%
C000221418 | IndustryCollateralized Mortgage Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 12.90%
C000221418 | IndustryU.S. Treasury Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 28.20%
C000221418 | AssetForeign Sovereign Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
C000221418 | AssetCorporate Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 28.70%
C000221418 | AssetForeign Corporate Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000221418 | AssetU.S. Treasury Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 28.20%
C000221418 | AssetCollateralized Mortgage Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 12.90%
C000221418 | AssetAsset-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 10.30%
C000221418 | AssetU.S. Agency Mortgage-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 7.50%
C000221418 | AssetCommercial Mortgage-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000221418 | AssetMunicipal Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000221415 | U.S. Treasury Bonds_3.375_11/15/2048  
Holdings [Line Items]  
Percent of Total Investments 5.00%
C000221415 | U.S. Treasury Notes_4.375_5/15/2036  
Holdings [Line Items]  
Percent of Total Investments 3.20%
C000221415 | U.S. Treasury Notes_4.500_11/15/2033  
Holdings [Line Items]  
Percent of Total Investments 3.10%
C000221415 | U.S. Treasury Notes_3.750_2/28/2033  
Holdings [Line Items]  
Percent of Total Investments 2.20%
C000221415 | U.S. Treasury Bonds_1.750_8/15/2041  
Holdings [Line Items]  
Percent of Total Investments 2.00%
C000221415 | RCKT Mortgage Trust_6.902_6/25/2043  
Holdings [Line Items]  
Percent of Total Investments 1.90%
C000221415 | U.S. Treasury Notes_4.000_11/15/2035  
Holdings [Line Items]  
Percent of Total Investments 1.80%
C000221415 | U.S. Treasury Notes_4.125_2/15/2036  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000221415 | U.S. Treasury Bonds_2.500_2/15/2045  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000221415 | U.S. Treasury Bonds_4.875_8/15/2045  
Holdings [Line Items]  
Percent of Total Investments 1.40%
C000221415 | United States  
Holdings [Line Items]  
Percent of Total Investments 96.70%
C000221415 | France  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000221415 | Bermuda  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000221415 | China  
Holdings [Line Items]  
Percent of Total Investments 0.20%
C000221415 | Mexico  
Holdings [Line Items]  
Percent of Total Investments 0.20%
C000221415 | United Kingdom  
Holdings [Line Items]  
Percent of Total Investments 0.30%
C000221415 | Ireland  
Holdings [Line Items]  
Percent of Total Investments 0.60%
C000221415 | Canada  
Holdings [Line Items]  
Percent of Total Investments 1.80%
C000221415 | IndustryElectric  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000221415 | IndustryDiversified Financial Services  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000221415 | IndustryBanks  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000221415 | IndustryInsurance  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000221415 | IndustryMunicipal  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000221415 | IndustryCommercial Mortgage-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000221415 | IndustryU.S. Agency Mortgage-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000221415 | IndustryAsset-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 10.30%
C000221415 | IndustryCollateralized Mortgage Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 12.90%
C000221415 | IndustryU.S. Treasury Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 28.20%
C000221415 | AssetForeign Sovereign Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
C000221415 | AssetCorporate Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 28.70%
C000221415 | AssetForeign Corporate Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000221415 | AssetU.S. Treasury Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 28.20%
C000221415 | AssetCollateralized Mortgage Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 12.90%
C000221415 | AssetAsset-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 10.30%
C000221415 | AssetU.S. Agency Mortgage-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 7.50%
C000221415 | AssetCommercial Mortgage-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000221415 | AssetMunicipal Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000221416 | U.S. Treasury Bonds_3.375_11/15/2048  
Holdings [Line Items]  
Percent of Total Investments 5.00%
C000221416 | U.S. Treasury Notes_4.375_5/15/2036  
Holdings [Line Items]  
Percent of Total Investments 3.20%
C000221416 | U.S. Treasury Notes_4.500_11/15/2033  
Holdings [Line Items]  
Percent of Total Investments 3.10%
C000221416 | U.S. Treasury Notes_3.750_2/28/2033  
Holdings [Line Items]  
Percent of Total Investments 2.20%
C000221416 | U.S. Treasury Bonds_1.750_8/15/2041  
Holdings [Line Items]  
Percent of Total Investments 2.00%
C000221416 | RCKT Mortgage Trust_6.902_6/25/2043  
Holdings [Line Items]  
Percent of Total Investments 1.90%
C000221416 | U.S. Treasury Notes_4.000_11/15/2035  
Holdings [Line Items]  
Percent of Total Investments 1.80%
C000221416 | U.S. Treasury Notes_4.125_2/15/2036  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000221416 | U.S. Treasury Bonds_2.500_2/15/2045  
Holdings [Line Items]  
Percent of Total Investments 1.50%
C000221416 | U.S. Treasury Bonds_4.875_8/15/2045  
Holdings [Line Items]  
Percent of Total Investments 1.40%
C000221416 | United States  
Holdings [Line Items]  
Percent of Total Investments 96.70%
C000221416 | France  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000221416 | Bermuda  
Holdings [Line Items]  
Percent of Total Investments 0.10%
C000221416 | China  
Holdings [Line Items]  
Percent of Total Investments 0.20%
C000221416 | Mexico  
Holdings [Line Items]  
Percent of Total Investments 0.20%
C000221416 | United Kingdom  
Holdings [Line Items]  
Percent of Total Investments 0.30%
C000221416 | Ireland  
Holdings [Line Items]  
Percent of Total Investments 0.60%
C000221416 | Canada  
Holdings [Line Items]  
Percent of Total Investments 1.80%
C000221416 | IndustryElectric  
Holdings [Line Items]  
Percent of Net Asset Value 3.80%
C000221416 | IndustryDiversified Financial Services  
Holdings [Line Items]  
Percent of Net Asset Value 2.50%
C000221416 | IndustryBanks  
Holdings [Line Items]  
Percent of Net Asset Value 5.00%
C000221416 | IndustryInsurance  
Holdings [Line Items]  
Percent of Net Asset Value 2.20%
C000221416 | IndustryMunicipal  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%
C000221416 | IndustryCommercial Mortgage-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000221416 | IndustryU.S. Agency Mortgage-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 7.60%
C000221416 | IndustryAsset-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 10.30%
C000221416 | IndustryCollateralized Mortgage Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 12.90%
C000221416 | IndustryU.S. Treasury Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 28.20%
C000221416 | AssetForeign Sovereign Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 0.20%
C000221416 | AssetCorporate Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 28.70%
C000221416 | AssetForeign Corporate Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 2.90%
C000221416 | AssetU.S. Treasury Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 28.20%
C000221416 | AssetCollateralized Mortgage Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 12.90%
C000221416 | AssetAsset-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 10.30%
C000221416 | AssetU.S. Agency Mortgage-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 7.50%
C000221416 | AssetCommercial Mortgage-Backed Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 6.50%
C000221416 | AssetMunicipal Obligations  
Holdings [Line Items]  
Percent of Net Asset Value 2.80%