v3.26.3
S000048058 [Member] Expense Example, No Redemption - S000048058 [Member]
May 31, 2026
USD ($)
C000151809 [Member]  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year $ 106
Expense Example, No Redemption, 3 Years 359
Expense Example, No Redemption, 5 Years 631
Expense Example, No Redemption, 10 Years 1,409
C000151801 [Member]  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 699
Expense Example, No Redemption, 3 Years 986
Expense Example, No Redemption, 5 Years 1,295
Expense Example, No Redemption, 10 Years 2,169
C000151802 [Member]  
Prospectus [Line Items]  
Expense Example, No Redemption, 1 Year 207
Expense Example, No Redemption, 3 Years 667
Expense Example, No Redemption, 5 Years 1,153
Expense Example, No Redemption, 10 Years $ 2,303