v3.26.1
Shareholder Report, Line Graph (Details) 196049_Frontier MFG Global Sustainable Fund_Service Class_TSR Annual {Service Class} - USD ($)
12 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2021
Oct. 20, 2020
Jun. 30, 2026
Service Class              
Account Value [Line Items]              
Line Graph and Table Measure Name             Service Class
Accumulated Value $ 16,149 $ 13,332 $ 10,949 $ 9,173 $ 11,107 $ 10,000 $ 16,942
MSCI World Index (Net) [Member]              
Account Value [Line Items]              
Line Graph and Table Measure Name             MSCI World Index (Net)
Accumulated Value $ 17,848 $ 15,352 $ 12,773 $ 10,778 $ 12,582 $ 10,000 $ 21,657