v3.26.3
International Government Bond Fund Average Annual Total Returns
12 Months Ended 60 Months Ended 120 Months Ended
Dec. 31, 2025
Dec. 31, 2025
Dec. 31, 2025
Bloomberg Global Aggregate Index (USD hdg) (reflects no deduction for fees, expenses or taxes)[Member]      
Prospectus [Line Items]      
Average Annual Return, Percent 4.86% 0.34% 2.39%
Intl Gov Bd Blended Index (reflects no deduction for fees or expenses)[Member]      
Prospectus [Line Items]      
Average Annual Return, Percent 9.57% (1.93%) 1.73%
None      
Prospectus [Line Items]      
Average Annual Return, Percent 9.15% (2.01%) 1.64%