v3.26.1
Shareholder Report, Average Annual Return (Details) 196049_Frontier MFG Global Sustainable Fund_Service Class_TSR Annual {Service Class}
12 Months Ended 60 Months Ended 68 Months Ended
Jun. 30, 2026
Jun. 30, 2026
Jun. 30, 2026
Service Class      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name Service Class    
Average Annual Return, Percent 4.91% 8.81% 9.70%
MSCI World Index (Net) [Member]      
Average Annual Return [Line Items]      
Line Graph and Table Measure Name MSCI World Index (Net)    
Average Annual Return, Percent 21.34% 11.47% 14.54%