v3.26.3
S000031344 [Member] Expense Example, No Redemption - S000031344 [Member]
May 31, 2026
USD ($)
C000121134 [Member]  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 55
Expense Example, No Redemption, 3 Years 188
Expense Example, No Redemption, 5 Years 333
Expense Example, No Redemption, 10 Years 755
C000149222 [Member]  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 49
Expense Example, No Redemption, 3 Years 171
Expense Example, No Redemption, 5 Years 305
Expense Example, No Redemption, 10 Years 694
C000097356 [Member]  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 386
Expense Example, No Redemption, 3 Years 586
Expense Example, No Redemption, 5 Years 802
Expense Example, No Redemption, 10 Years 1,424
C000097358 [Member]  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 165
Expense Example, No Redemption, 3 Years 528
Expense Example, No Redemption, 5 Years 915
Expense Example, No Redemption, 10 Years 1,803
C000097361 [Member]  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 63
Expense Example, No Redemption, 3 Years 216
Expense Example, No Redemption, 5 Years 382
Expense Example, No Redemption, 10 Years $ 863