010001 - Document - Document And Entity Information {Elements} link:presentationLink link:calculationLink link:definitionLink 040014 - Document - Shareholder Report, Line Graph (Details) 196049_Frontier MFG Global Sustainable Fund_Institutional Class_TSR Annual {Institutional Class} link:presentationLink link:calculationLink link:definitionLink 040015 - Document - Shareholder Report, Average Annual Return (Details) 196049_Frontier MFG Global Sustainable Fund_Institutional Class_TSR Annual {Institutional Class} link:presentationLink link:calculationLink link:definitionLink 040016 - Document - Shareholder Report, Holdings (Details) 196049_Frontier MFG Global Sustainable Fund_Institutional Class_TSR Annual {Elements} link:presentationLink link:calculationLink link:definitionLink 040018 - Document - Shareholder Report, Line Graph (Details) 196049_Frontier MFG Global Sustainable Fund_Service Class_TSR Annual {Service Class} link:presentationLink link:calculationLink link:definitionLink 040019 - Document - Shareholder Report, Average Annual Return (Details) 196049_Frontier MFG Global Sustainable Fund_Service Class_TSR Annual {Service Class} link:presentationLink link:calculationLink link:definitionLink 040020 - Document - Shareholder Report, Holdings (Details) 196049_Frontier MFG Global Sustainable Fund_Service Class_TSR Annual {Elements} link:presentationLink link:calculationLink link:definitionLink 040022 - Document - Shareholder Report, Line Graph (Details) 196044_Frontier MFG Core Infrastructure Fund_Institutional Class_TSR Annual {Institutional Class} link:presentationLink link:calculationLink link:definitionLink 040023 - Document - Shareholder Report, Average Annual Return (Details) 196044_Frontier MFG Core Infrastructure Fund_Institutional Class_TSR Annual {Institutional Class} link:presentationLink link:calculationLink link:definitionLink 040024 - Document - Shareholder Report, Holdings (Details) 196044_Frontier MFG Core Infrastructure Fund_Institutional Class_TSR Annual {Elements} link:presentationLink link:calculationLink link:definitionLink 040026 - Document - Shareholder Report, Line Graph (Details) 196044_Frontier MFG Core Infrastructure Fund_Service Class_TSR Annual {Service Class} link:presentationLink link:calculationLink link:definitionLink 040027 - Document - Shareholder Report, Average Annual Return (Details) 196044_Frontier MFG Core Infrastructure Fund_Service Class_TSR Annual {Service Class} link:presentationLink link:calculationLink link:definitionLink 040028 - Document - Shareholder Report, Holdings (Details) 196044_Frontier MFG Core Infrastructure Fund_Service Class_TSR Annual {Elements} link:presentationLink link:calculationLink link:definitionLink