v3.26.3
Shareholder Report, Holdings (Details)
Jul. 31, 2026
C000162463 | CurrencyExposure_Long_Other  
Holdings [Line Items]  
Percent of Net Long Exposure 15.30%
C000162463 | Short_Currency_TotalTotal Short Exposure  
Holdings [Line Items]  
Percent of Total Short Exposure (8.60%)
C000162463 | CurrencyExposure_Long_Egypt  
Holdings [Line Items]  
Percent of Net Long Exposure 8.40%
C000162463 | CurrencyExposure_Long_Hungary  
Holdings [Line Items]  
Percent of Net Long Exposure 7.80%
C000162463 | CurrencyExposure_Long_Uzbekistan  
Holdings [Line Items]  
Percent of Net Long Exposure 7.20%
C000162463 | CurrencyExposure_Long_Nigeria  
Holdings [Line Items]  
Percent of Net Long Exposure 4.80%
C000162463 | CurrencyExposure_Long_Kazakhstan  
Holdings [Line Items]  
Percent of Net Long Exposure 4.50%
C000162463 | CurrencyExposure_Long_Taiwan  
Holdings [Line Items]  
Percent of Net Long Exposure 3.80%
C000162463 | CurrencyExposure_Long_Brazil  
Holdings [Line Items]  
Percent of Net Long Exposure 3.40%
C000162463 | CurrencyExposure_Long_Turkey  
Holdings [Line Items]  
Percent of Net Long Exposure 3.00%
C000162463 | CurrencyExposure_Long_Armenia  
Holdings [Line Items]  
Percent of Net Long Exposure 2.80%
C000162463 | Long_Currency_TotalTotal Long Exposure  
Holdings [Line Items]  
Percent of Total Long Exposure 61.00%
C000162463 | CurrencyExposure_Short_Euro  
Holdings [Line Items]  
Percent of Net Short Exposure (8.50%)
C000162463 | CurrencyExposure_Short_Other  
Holdings [Line Items]  
Percent of Net Short Exposure (0.10%)
C000162463 | Asset Other Line  
Holdings [Line Items]  
Percent of Total Investments 0.30%
C000162463 | AssetSovereign Loans  
Holdings [Line Items]  
Percent of Total Investments 2.50%
C000162463 | AssetSenior Floating-Rate Loans  
Holdings [Line Items]  
Percent of Total Investments 3.60%
C000162463 | AssetShort-Term Investments  
Holdings [Line Items]  
Percent of Total Investments 22.30%
C000162463 | AssetForeign Corporate Bonds  
Holdings [Line Items]  
Percent of Total Investments 25.10%
C000162463 | AssetSovereign Government Bonds  
Holdings [Line Items]  
Percent of Total Investments 46.20%
C000162464 | CurrencyExposure_Long_Other  
Holdings [Line Items]  
Percent of Net Long Exposure 15.30%
C000162464 | Short_Currency_TotalTotal Short Exposure  
Holdings [Line Items]  
Percent of Total Short Exposure (8.60%)
C000162464 | CurrencyExposure_Long_Egypt  
Holdings [Line Items]  
Percent of Net Long Exposure 8.40%
C000162464 | CurrencyExposure_Long_Hungary  
Holdings [Line Items]  
Percent of Net Long Exposure 7.80%
C000162464 | CurrencyExposure_Long_Uzbekistan  
Holdings [Line Items]  
Percent of Net Long Exposure 7.20%
C000162464 | CurrencyExposure_Long_Nigeria  
Holdings [Line Items]  
Percent of Net Long Exposure 4.80%
C000162464 | CurrencyExposure_Long_Kazakhstan  
Holdings [Line Items]  
Percent of Net Long Exposure 4.50%
C000162464 | CurrencyExposure_Long_Taiwan  
Holdings [Line Items]  
Percent of Net Long Exposure 3.80%
C000162464 | CurrencyExposure_Long_Brazil  
Holdings [Line Items]  
Percent of Net Long Exposure 3.40%
C000162464 | CurrencyExposure_Long_Turkey  
Holdings [Line Items]  
Percent of Net Long Exposure 3.00%
C000162464 | CurrencyExposure_Long_Armenia  
Holdings [Line Items]  
Percent of Net Long Exposure 2.80%
C000162464 | Long_Currency_TotalTotal Long Exposure  
Holdings [Line Items]  
Percent of Total Long Exposure 61.00%
C000162464 | CurrencyExposure_Short_Euro  
Holdings [Line Items]  
Percent of Net Short Exposure (8.50%)
C000162464 | CurrencyExposure_Short_Other  
Holdings [Line Items]  
Percent of Net Short Exposure (0.10%)
C000162464 | Asset Other Line  
Holdings [Line Items]  
Percent of Total Investments 0.30%
C000162464 | AssetSovereign Loans  
Holdings [Line Items]  
Percent of Total Investments 2.50%
C000162464 | AssetSenior Floating-Rate Loans  
Holdings [Line Items]  
Percent of Total Investments 3.60%
C000162464 | AssetShort-Term Investments  
Holdings [Line Items]  
Percent of Total Investments 22.30%
C000162464 | AssetForeign Corporate Bonds  
Holdings [Line Items]  
Percent of Total Investments 25.10%
C000162464 | AssetSovereign Government Bonds  
Holdings [Line Items]  
Percent of Total Investments 46.20%
C000117767 | CurrencyExposure_Long_Other  
Holdings [Line Items]  
Percent of Net Long Exposure 15.30%
C000117767 | Short_Currency_TotalTotal Short Exposure  
Holdings [Line Items]  
Percent of Total Short Exposure (8.60%)
C000117767 | CurrencyExposure_Long_Egypt  
Holdings [Line Items]  
Percent of Net Long Exposure 8.40%
C000117767 | CurrencyExposure_Long_Hungary  
Holdings [Line Items]  
Percent of Net Long Exposure 7.80%
C000117767 | CurrencyExposure_Long_Uzbekistan  
Holdings [Line Items]  
Percent of Net Long Exposure 7.20%
C000117767 | CurrencyExposure_Long_Nigeria  
Holdings [Line Items]  
Percent of Net Long Exposure 4.80%
C000117767 | CurrencyExposure_Long_Kazakhstan  
Holdings [Line Items]  
Percent of Net Long Exposure 4.50%
C000117767 | CurrencyExposure_Long_Taiwan  
Holdings [Line Items]  
Percent of Net Long Exposure 3.80%
C000117767 | CurrencyExposure_Long_Brazil  
Holdings [Line Items]  
Percent of Net Long Exposure 3.40%
C000117767 | CurrencyExposure_Long_Turkey  
Holdings [Line Items]  
Percent of Net Long Exposure 3.00%
C000117767 | CurrencyExposure_Long_Armenia  
Holdings [Line Items]  
Percent of Net Long Exposure 2.80%
C000117767 | Long_Currency_TotalTotal Long Exposure  
Holdings [Line Items]  
Percent of Total Long Exposure 61.00%
C000117767 | CurrencyExposure_Short_Euro  
Holdings [Line Items]  
Percent of Net Short Exposure (8.50%)
C000117767 | CurrencyExposure_Short_Other  
Holdings [Line Items]  
Percent of Net Short Exposure (0.10%)
C000117767 | Asset Other Line  
Holdings [Line Items]  
Percent of Total Investments 0.30%
C000117767 | AssetSovereign Loans  
Holdings [Line Items]  
Percent of Total Investments 2.50%
C000117767 | AssetSenior Floating-Rate Loans  
Holdings [Line Items]  
Percent of Total Investments 3.60%
C000117767 | AssetShort-Term Investments  
Holdings [Line Items]  
Percent of Total Investments 22.30%
C000117767 | AssetForeign Corporate Bonds  
Holdings [Line Items]  
Percent of Total Investments 25.10%
C000117767 | AssetSovereign Government Bonds  
Holdings [Line Items]  
Percent of Total Investments 46.20%