v3.25.1
Consolidated Condensed Schedules of Investments - USD ($)
Mar. 31, 2025
Dec. 31, 2024
Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [1]   $ 924,439
Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member] | Investment in Unconsolidated Trading Companies [Member]    
Investment Owned, Fair Value [1]   $ 23,131
Frontier Diversified Fund [Member] | Total Capital Net Asset Value [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]   96.87%
Frontier Diversified Fund [Member] | Total Capital Net Asset Value [Member] | Investment in Unconsolidated Trading Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]   2.42%
Frontier Diversified Fund [Member] | Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [1]   $ 200,783
Frontier Diversified Fund [Member] | Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC [Member] | Total Capital Net Asset Value [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]   21.04%
Frontier Diversified Fund [Member] | Galaxy Plus Fund - QIM Feeder Fund (526) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [1]   $ 107,734
Frontier Diversified Fund [Member] | Galaxy Plus Fund - QIM Feeder Fund (526) LLC [Member] | Total Capital Net Asset Value [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]   11.29%
Frontier Diversified Fund [Member] | Galaxy Plus Fund - Quantica Managed Futures Feeder Fund (507) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [1]   $ 97,625
Frontier Diversified Fund [Member] | Galaxy Plus Fund - Quantica Managed Futures Feeder Fund (507) LLC [Member] | Total Capital Net Asset Value [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]   10.23%
Frontier Diversified Fund [Member] | Galaxy Plus Fund - Quest Feeder Fund (517) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [1]   $ 215,875
Frontier Diversified Fund [Member] | Galaxy Plus Fund - Quest Feeder Fund (517) LLC [Member] | Total Capital Net Asset Value [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]   22.62%
Frontier Diversified Fund [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [1]   $ 204,509
Frontier Diversified Fund [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member] | Total Capital Net Asset Value [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]   21.43%
Frontier Diversified Fund [Member] | ‣ Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [1]   $ 97,913
Frontier Diversified Fund [Member] | ‣ Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member] | Total Capital Net Asset Value [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]   10.26%
Frontier Diversified Fund [Member] | Galaxy Plus Fund - Rosetta Program Feeder Fund (522) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [1]  
Frontier Diversified Fund [Member] | Galaxy Plus Fund - Rosetta Program Feeder Fund (522) LLC [Member] | Total Capital Net Asset Value [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]   0.00%
Frontier Diversified Fund [Member] | Frontier Trading Company XXXVIII, LLC [Member] | The Series of Frontier Funds [Member] | Investment in Unconsolidated Trading Companies [Member]    
Investment Owned, Fair Value [1]   $ 23,131
Frontier Diversified Fund [Member] | Frontier Trading Company XXXVIII, LLC [Member] | Total Capital Net Asset Value [Member] | Investment in Unconsolidated Trading Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]   2.42%
Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 95.60%  
Investment Owned, Fair Value [1] $ 731,788  
Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member] | Investment in Unconsolidated Trading Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 2.66%  
Investment Owned, Fair Value [1] $ 20,372  
Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 20.64%  
Investment Owned, Fair Value [1] $ 158,005  
Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - QIM Feeder Fund (526) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 15.22%  
Investment Owned, Fair Value [1] $ 116,493  
Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Quantica Managed Futures Feeder Fund (507) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 8.23%  
Investment Owned, Fair Value [1] $ 62,984  
Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Quest Feeder Fund (517) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 25.60%  
Investment Owned, Fair Value [1] $ 195,968  
Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 19.50%  
Investment Owned, Fair Value [1] $ 149,305  
Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member] | ‣ Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 6.41%  
Investment Owned, Fair Value [1] $ 49,033  
Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Rosetta Program Feeder Fund (522) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 0.00%  
Investment Owned, Fair Value [1]  
Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member] | Frontier Trading Company XXXVIII, LLC [Member] | Investment in Unconsolidated Trading Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 2.66%  
Investment Owned, Fair Value [1] $ 20,372  
Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Fair Value [Member] | U.S. TREASURY SECURITIES [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [2] 0.25% 0.20%
Investment Owned, Fair Value [2] $ 1,923 $ 1,945
Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Face Value [Member] | Additional Disclosure on U.S. Treasury Securities [Member]    
Investment Owned, Fair Value [2] 1,898 1,909
Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Cost [Member] | Additional Disclosure on U.S. Treasury Securities [Member]    
Investment Owned, Fair Value [2] $ 2,023 2,035
Frontier Masters Fund [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [1]   269,394
Frontier Masters Fund [Member] | The Series of Frontier Funds [Member] | Investment in Unconsolidated Trading Companies [Member]    
Investment Owned, Fair Value [1]   $ 13,036
Frontier Masters Fund [Member] | Total Capital Net Asset Value [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]   100.81%
Frontier Masters Fund [Member] | Total Capital Net Asset Value [Member] | Investment in Unconsolidated Trading Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]   4.88%
Frontier Masters Fund [Member] | Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [1]  
Frontier Masters Fund [Member] | Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC [Member] | Total Capital Net Asset Value [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]   0.00%
Frontier Masters Fund [Member] | Galaxy Plus Fund - QIM Feeder Fund (526) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [1]  
Frontier Masters Fund [Member] | Galaxy Plus Fund - QIM Feeder Fund (526) LLC [Member] | Total Capital Net Asset Value [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]   0.00%
Frontier Masters Fund [Member] | Galaxy Plus Fund - Quantica Managed Futures Feeder Fund (507) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [1]   $ 48,601
Frontier Masters Fund [Member] | Galaxy Plus Fund - Quantica Managed Futures Feeder Fund (507) LLC [Member] | Total Capital Net Asset Value [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]   18.19%
Frontier Masters Fund [Member] | Galaxy Plus Fund - Quest Feeder Fund (517) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [1]  
Frontier Masters Fund [Member] | Galaxy Plus Fund - Quest Feeder Fund (517) LLC [Member] | Total Capital Net Asset Value [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]   0.00%
Frontier Masters Fund [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [1]   $ 177,375
Frontier Masters Fund [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member] | Total Capital Net Asset Value [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]   66.37%
Frontier Masters Fund [Member] | ‣ Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [1]   $ 43,418
Frontier Masters Fund [Member] | ‣ Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member] | Total Capital Net Asset Value [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]   16.25%
Frontier Masters Fund [Member] | Galaxy Plus Fund - Rosetta Program Feeder Fund (522) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [1]  
Frontier Masters Fund [Member] | Galaxy Plus Fund - Rosetta Program Feeder Fund (522) LLC [Member] | Total Capital Net Asset Value [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]   0.00%
Frontier Masters Fund [Member] | Frontier Trading Company XXXVIII, LLC [Member] | The Series of Frontier Funds [Member] | Investment in Unconsolidated Trading Companies [Member]    
Investment Owned, Fair Value [1]   $ 13,036
Frontier Masters Fund [Member] | Frontier Trading Company XXXVIII, LLC [Member] | Total Capital Net Asset Value [Member] | Investment in Unconsolidated Trading Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]   4.88%
Frontier Masters Fund [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 105.46%  
Investment Owned, Fair Value [1] $ 210,998  
Frontier Masters Fund [Member] | The Series of Frontier Funds [Member] | Investment in Unconsolidated Trading Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 5.16%  
Investment Owned, Fair Value [1] $ 10,321  
Frontier Masters Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 0.00%  
Investment Owned, Fair Value [1]  
Frontier Masters Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - QIM Feeder Fund (526) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 0.00%  
Investment Owned, Fair Value [1]  
Frontier Masters Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Quantica Managed Futures Feeder Fund (507) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 15.71%  
Investment Owned, Fair Value [1] $ 31,432  
Frontier Masters Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Quest Feeder Fund (517) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 0.00%  
Investment Owned, Fair Value [1]  
Frontier Masters Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 71.39%  
Investment Owned, Fair Value [1] $ 142,827  
Frontier Masters Fund [Member] | The Series of Frontier Funds [Member] | ‣ Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 18.36%  
Investment Owned, Fair Value [1] $ 36,739  
Frontier Masters Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Rosetta Program Feeder Fund (522) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 0.00%  
Investment Owned, Fair Value [1]  
Frontier Masters Fund [Member] | The Series of Frontier Funds [Member] | Frontier Trading Company XXXVIII, LLC [Member] | Investment in Unconsolidated Trading Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 5.16%  
Investment Owned, Fair Value [1] $ 10,321  
Frontier Masters Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Fair Value [Member] | U.S. TREASURY SECURITIES [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [2] 0.49% 0.41%
Investment Owned, Fair Value [2] $ 974 $ 1,096
Frontier Masters Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Face Value [Member] | Additional Disclosure on U.S. Treasury Securities [Member]    
Investment Owned, Fair Value [2] 961 1,076
Frontier Masters Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Cost [Member] | Additional Disclosure on U.S. Treasury Securities [Member]    
Investment Owned, Fair Value [2] $ 1,025 $ 1,147
Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 90.73% 88.67%
Investment Owned, Fair Value [1] $ 201,755 $ 239,475
Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member] | Investment in Unconsolidated Trading Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 3.79% 4.88%
Investment Owned, Fair Value [1] $ 8,429 $ 13,179
Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 0.00% 0.00%
Investment Owned, Fair Value [1]
Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - QIM Feeder Fund (526) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 0.00% 0.00%
Investment Owned, Fair Value [1]
Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Quantica Managed Futures Feeder Fund (507) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 0.00% 0.00%
Investment Owned, Fair Value [1]
Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Quest Feeder Fund (517) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 0.00% 0.00%
Investment Owned, Fair Value [1]
Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 0.00% 0.00%
Investment Owned, Fair Value [1]
Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member] | ‣ Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 22.01% 32.09%
Investment Owned, Fair Value [1] $ 48,943 $ 86,661
Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Rosetta Program Feeder Fund (522) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 68.72% 56.58%
Investment Owned, Fair Value [1] $ 152,812 $ 152,814
Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member] | Frontier Trading Company XXXVIII, LLC [Member] | Investment in Unconsolidated Trading Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 3.79% 4.88%
Investment Owned, Fair Value [1] $ 8,429 $ 13,179
Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Fair Value [Member] | U.S. TREASURY SECURITIES [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [2] 0.36% 0.41%
Investment Owned, Fair Value [2] $ 796 $ 1,108
Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Face Value [Member] | Additional Disclosure on U.S. Treasury Securities [Member]    
Investment Owned, Fair Value [2] 785 1,088
Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Cost [Member] | Additional Disclosure on U.S. Treasury Securities [Member]    
Investment Owned, Fair Value [2] $ 837 $ 1,160
Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 108.87% 108.97%
Investment Owned, Fair Value [1] $ 2,990,925 $ 3,616,091
Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member] | Investment in Unconsolidated Trading Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 2.80% 1.74%
Investment Owned, Fair Value [1] $ 76,833 $ 57,707
Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 7.67% 8.07%
Investment Owned, Fair Value [1] $ 210,817 $ 267,881
Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - QIM Feeder Fund (526) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 17.26% 13.92%
Investment Owned, Fair Value [1] $ 474,081 $ 462,054
Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Quantica Managed Futures Feeder Fund (507) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 13.99% 15.09%
Investment Owned, Fair Value [1] $ 384,349 $ 500,760
Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Quest Feeder Fund (517) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 25.58% 23.54%
Investment Owned, Fair Value [1] $ 702,673 $ 780,969
Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 32.21%  
Investment Owned, Fair Value [1] $ 884,946  
Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member] | ‣ Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 6.69% 8.86%
Investment Owned, Fair Value [1] $ 183,908 $ 293,875
Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member] | Frontier Trading Company XXXVIII, LLC [Member] | Investment in Unconsolidated Trading Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 2.80% 1.74%
Investment Owned, Fair Value [1] $ 76,833 $ 57,707
Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Fair Value [Member] | U.S. TREASURY SECURITIES [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [2] 0.26% 0.15%
Investment Owned, Fair Value [2] $ 7,253 $ 4,851
Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Face Value [Member] | Additional Disclosure on U.S. Treasury Securities [Member]    
Investment Owned, Fair Value 7,157 [2] $ 4,764
Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Cost [Member] | Additional Disclosure on U.S. Treasury Securities [Member]    
Investment Owned, Fair Value [2] $ 7,629  
Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Horizon3 Feeder Fund (577) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 5.47% 6.86%
Investment Owned, Fair Value [1] $ 150,151 $ 227,727
Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]   32.63%
Investment Owned, Fair Value [1]   $ 1,082,825
Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Notes Securities [Member] | Cost [Member] | Additional Disclosure on U.S. Treasury Securities [Member]    
Investment Owned, Fair Value [2]   $ 5,078
Frontier Select Fund [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 95.76% 97.25%
Investment Owned, Fair Value [1] $ 424,451 $ 563,791
Frontier Select Fund [Member] | The Series of Frontier Funds [Member] | Investment in Unconsolidated Trading Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 3.94% 3.06%
Investment Owned, Fair Value [1] $ 17,465 $ 17,750
Frontier Select Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 0.00% 0.00%
Investment Owned, Fair Value [1]
Frontier Select Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - QIM Feeder Fund (526) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 0.00% 0.00%
Investment Owned, Fair Value [1]
Frontier Select Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Quantica Managed Futures Feeder Fund (507) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 62.36% 57.53%
Investment Owned, Fair Value [1] $ 276,390 $ 333,552
Frontier Select Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Quest Feeder Fund (517) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 0.00% 0.00%
Investment Owned, Fair Value [1]
Frontier Select Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 0.00%  
Investment Owned, Fair Value [1]  
Frontier Select Fund [Member] | The Series of Frontier Funds [Member] | ‣ Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 19.33% 24.32%
Investment Owned, Fair Value [1] $ 85,690 $ 140,978
Frontier Select Fund [Member] | The Series of Frontier Funds [Member] | Frontier Trading Company XXXVIII, LLC [Member] | Investment in Unconsolidated Trading Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 3.94% 3.06%
Investment Owned, Fair Value [1] $ 17,465 $ 17,750
Frontier Select Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Fair Value [Member] | U.S. TREASURY SECURITIES [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [2] 0.37% 0.26%
Investment Owned, Fair Value [2] $ 1,649 $ 1,492
Frontier Select Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Face Value [Member] | Additional Disclosure on U.S. Treasury Securities [Member]    
Investment Owned, Fair Value 1,627 [2] $ 1,465
Frontier Select Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Cost [Member] | Additional Disclosure on U.S. Treasury Securities [Member]    
Investment Owned, Fair Value [2] $ 1,734  
Frontier Select Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Horizon3 Feeder Fund (577) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 14.07% 15.40%
Investment Owned, Fair Value [1] $ 62,371 $ 89,261
Frontier Select Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]   0.00%
Investment Owned, Fair Value [1]  
Frontier Select Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Notes Securities [Member] | Cost [Member] | Additional Disclosure on U.S. Treasury Securities [Member]    
Investment Owned, Fair Value [2]   $ 1,562
Frontier Global Fund [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 115.40% 110.62%
Investment Owned, Fair Value [1] $ 770,028 $ 985,419
Frontier Global Fund [Member] | The Series of Frontier Funds [Member] | Investment in Unconsolidated Trading Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 0.00% 3.64%
Investment Owned, Fair Value [1] $ 32,387
Frontier Global Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 115.40% 110.62%
Investment Owned, Fair Value [1] $ 770,028 $ 985,419
Frontier Global Fund [Member] | The Series of Frontier Funds [Member] | ‣ Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]
Investment Owned, Fair Value [1]
Frontier Global Fund [Member] | The Series of Frontier Funds [Member] | Frontier Trading Company XXXVIII, LLC [Member] | Investment in Unconsolidated Trading Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 0.00% 3.64%
Investment Owned, Fair Value [1] $ 32,387
Frontier Global Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Fair Value [Member] | U.S. TREASURY SECURITIES [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [2] 0.00% 0.31%
Investment Owned, Fair Value [2] $ 2,723
Frontier Global Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Face Value [Member] | Additional Disclosure on U.S. Treasury Securities [Member]    
Investment Owned, Fair Value [2]   2,674
Frontier Global Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Cost [Member] | Additional Disclosure on U.S. Treasury Securities [Member]    
Investment Owned, Fair Value [2] $ 2,850
Frontier Global Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Face Value One [Member] | Additional Disclosure on U.S. Treasury Securities [Member]    
Investment Owned, Fair Value [2]  
Frontier Global Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Horizon3 Feeder Fund (577) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1]
Investment Owned, Fair Value [1]
Frontier Heritage Fund [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 100.58% 99.60%
Investment Owned, Fair Value [1] $ 936,788 $ 1,149,833
Frontier Heritage Fund [Member] | The Series of Frontier Funds [Member] | Investment in Unconsolidated Trading Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 4.69% 3.70%
Investment Owned, Fair Value [1] $ 43,721 $ 42,692
Frontier Heritage Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 71.29% 68.74%
Investment Owned, Fair Value [1] $ 663,984 $ 793,570
Frontier Heritage Fund [Member] | The Series of Frontier Funds [Member] | ‣ Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 9.20% 11.27%
Investment Owned, Fair Value [1] $ 85,690 $ 130,134
Frontier Heritage Fund [Member] | The Series of Frontier Funds [Member] | Frontier Trading Company XXXVIII, LLC [Member] | Investment in Unconsolidated Trading Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 4.69% 3.70%
Investment Owned, Fair Value [1] $ 43,721 $ 42,692
Frontier Heritage Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Fair Value [Member] | U.S. TREASURY SECURITIES [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [2] 0.44% 0.31%
Investment Owned, Fair Value [2] $ 4,127 $ 3,589
Frontier Heritage Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Face Value [Member] | Additional Disclosure on U.S. Treasury Securities [Member]    
Investment Owned, Fair Value [2]   3,524
Frontier Heritage Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Cost [Member] | Additional Disclosure on U.S. Treasury Securities [Member]    
Investment Owned, Fair Value [2] 4,341 $ 3,756
Frontier Heritage Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member] | Face Value One [Member] | Additional Disclosure on U.S. Treasury Securities [Member]    
Investment Owned, Fair Value [2] $ 4,072  
Frontier Heritage Fund [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Horizon3 Feeder Fund (577) LLC [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [1] 20.09% 19.59%
Investment Owned, Fair Value [1] $ 187,114 $ 226,129
Fair Value [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [2] 6,443,874 7,948,324
Fair Value [Member] | The Series of Frontier Funds [Member] | U.S. TREASURY SECURITIES [Member]    
Investment Owned, Fair Value 16,722 16,804
Fair Value [Member] | Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [2] 368,822 468,664
Fair Value [Member] | Galaxy Plus Fund - QIM Feeder Fund (526) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [2] 590,574 569,788
Fair Value [Member] | Galaxy Plus Fund - Quantica Managed Futures Feeder Fund (507) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [2] 755,155 980,537
Fair Value [Member] | Galaxy Plus Fund - Quest Feeder Fund (517) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [2] 898,641 996,844
Fair Value [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [2] 2,611,090 3,243,699
Fair Value [Member] | ‣ Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [2] 490,003 792,979
Fair Value [Member] | Galaxy Plus Fund - Rosetta Program Feeder Fund (522) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [2] 152,812 152,814
Fair Value [Member] | US Treasury Note [Member] | The Series of Frontier Funds [Member] | U.S. TREASURY SECURITIES [Member]    
Investment Owned, Fair Value 16,722 16,804
Fair Value [Member] | Galaxy Plus Fund - Horizon3 Feeder Fund (577) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [2] 399,636  
Fair Value [Member] | Galaxy Plus Fund - Quest Fit Feeder Fund (535) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [2] $ 177,141 199,882
Fair Value [Member] | Galaxy Plus Fund – Volt Diversified Alpha Feeder Fund (550) LLC) [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, Fair Value [2]   $ 543,117
Total Capital Net Asset Value [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [2] 107.80% 106.91%
Total Capital Net Asset Value [Member] | The Series of Frontier Funds [Member] | U.S. TREASURY SECURITIES [Member]    
Investment Owned, % of Total Capital (Net Asset Value) 0.28% 0.23%
Total Capital Net Asset Value [Member] | Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [2] 6.17% 6.30%
Total Capital Net Asset Value [Member] | Galaxy Plus Fund - QIM Feeder Fund (526) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [2] 9.88% 7.66%
Total Capital Net Asset Value [Member] | Galaxy Plus Fund - Quantica Managed Futures Feeder Fund (507) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [2] 12.63% 13.19%
Total Capital Net Asset Value [Member] | Galaxy Plus Fund - Quest Feeder Fund (517) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [2] 15.03% 13.41%
Total Capital Net Asset Value [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [2] 43.68% 43.63%
Total Capital Net Asset Value [Member] | ‣ Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [2] 8.20% 10.67%
Total Capital Net Asset Value [Member] | Galaxy Plus Fund - Rosetta Program Feeder Fund (522) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [2] 2.56% 2.06%
Total Capital Net Asset Value [Member] | US Treasury Note [Member] | The Series of Frontier Funds [Member] | U.S. TREASURY SECURITIES [Member]    
Investment Owned, % of Total Capital (Net Asset Value) 0.28% 0.23%
Total Capital Net Asset Value [Member] | Galaxy Plus Fund - Horizon3 Feeder Fund (577) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [2] 6.69%  
Total Capital Net Asset Value [Member] | Galaxy Plus Fund - Quest Fit Feeder Fund (535) LLC [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [2] 2.96% 2.69%
Total Capital Net Asset Value [Member] | Galaxy Plus Fund – Volt Diversified Alpha Feeder Fund (550) LLC) [Member] | The Series of Frontier Funds [Member] | Private Investment Companies [Member]    
Investment Owned, % of Total Capital (Net Asset Value) [2]   7.30%
[1] See Note 5 to the Consolidated Financial Statements.
[2] See Note 2 to the Consolidated Financial Statements.