v3.26.1
Expense Example - AMERICAN CENTURY INTERNATIONAL BOND FUNDS - EMERGING MARKETS DEBT FUND
Mar. 01, 2026
USD ($)
EMERGING MARKETS DEBT FUND INVESTOR CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year $ 94
Expense Example, with Redemption, 3 Years 294
Expense Example, with Redemption, 5 Years 510
Expense Example, with Redemption, 10 Years 1,131
EMERGING MARKETS DEBT FUND I CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 84
Expense Example, with Redemption, 3 Years 262
Expense Example, with Redemption, 5 Years 456
Expense Example, with Redemption, 10 Years 1,014
EMERGING MARKETS DEBT FUND Y CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 74
Expense Example, with Redemption, 3 Years 231
Expense Example, with Redemption, 5 Years 401
Expense Example, with Redemption, 10 Years 895
EMERGING MARKETS DEBT FUND A CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 564
Expense Example, with Redemption, 3 Years 805
Expense Example, with Redemption, 5 Years 1,065
Expense Example, with Redemption, 10 Years 1,806
EMERGING MARKETS DEBT FUND C CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 195
Expense Example, with Redemption, 3 Years 604
Expense Example, with Redemption, 5 Years 1,038
Expense Example, with Redemption, 10 Years 2,046
EMERGING MARKETS DEBT FUND R CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 145
Expense Example, with Redemption, 3 Years 450
Expense Example, with Redemption, 5 Years 777
Expense Example, with Redemption, 10 Years 1,701
EMERGING MARKETS DEBT FUND R5 CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 74
Expense Example, with Redemption, 3 Years 231
Expense Example, with Redemption, 5 Years 401
Expense Example, with Redemption, 10 Years 895
EMERGING MARKETS DEBT FUND R6 CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 69
Expense Example, with Redemption, 3 Years 215
Expense Example, with Redemption, 5 Years 374
Expense Example, with Redemption, 10 Years 835
EMERGING MARKETS DEBT FUND G CLASS  
Prospectus [Line Items]  
Expense Example, with Redemption, 1 Year 3
Expense Example, with Redemption, 3 Years 10
Expense Example, with Redemption, 5 Years 17
Expense Example, with Redemption, 10 Years $ 39