v3.25.1
Cover
 3 Months Ended
Mar. 31, 2025
shares
Document Information [Line Items]  
Document Type 10-Q
Document Quarterly Report true
Document Transition Report false
Entity Interactive Data Current Yes
Amendment Flag false
Document Period End Date Mar. 31, 2025
Document Fiscal Year Focus 2025
Document Fiscal Period Focus Q1
Entity Information [Line Items]  
Entity Registrant Name FRONTIER FUNDS
Entity Central Index Key 0001261379
Entity File Number 000-51274
Entity Tax Identification Number 36-6815533
Entity Incorporation, State or Country Code DE
Current Fiscal Year End Date --12-31
Entity Current Reporting Status Yes
Entity Shell Company false
Entity Filer Category Non-accelerated Filer
Entity Small Business false
Entity Emerging Growth Company false
Entity Contact Personnel [Line Items]  
Entity Address, Address Line One c/o Frontier Fund Management, LLC
Entity Address, Address Line Two 25568 Genesee Trail Road
Entity Address, City or Town Golden
Entity Address, State or Province CO
Entity Address, Postal Zip Code 80401
Entity Phone Fax Numbers [Line Items]  
City Area Code (303)
Local Phone Number 454-5500
Entity Listings [Line Items]  
Title of 12(b) Security N/A
No Trading Symbol Flag true
Security Exchange Name NONE
Frontier Diversified Fund  
Entity Listings [Line Items]  
Entity Common Stock, Shares Outstanding 15,406
Frontier Masters Fund  
Entity Listings [Line Items]  
Entity Common Stock, Shares Outstanding 4,511
Frontier Long/Short Commodity Fund  
Entity Listings [Line Items]  
Entity Common Stock, Shares Outstanding 5,877
Frontier Balanced Fund  
Entity Listings [Line Items]  
Entity Common Stock, Shares Outstanding 55,188
Frontier Select Funds  
Entity Listings [Line Items]  
Entity Common Stock, Shares Outstanding 14,185
Frontier Global Fund  
Entity Listings [Line Items]  
Entity Common Stock, Shares Outstanding 6,751
Frontier Heritage Fund  
Entity Listings [Line Items]  
Entity Common Stock, Shares Outstanding 13,207