Frontier Funds 10-K 15 Apr 22 2021 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2021	Jun. 30, 2021
Document Information Line Items
Entity Registrant Name	FRONTIER FUNDS
Document Type	10-K
Current Fiscal Year End Date	--12-31
Entity Public Float		$ 0
Amendment Flag	false
Entity Central Index Key	0001261379
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Non-accelerated Filer
Entity Well-known Seasoned Issuer	No
Document Period End Date	Dec. 31, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	FY
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
ICFR Auditor Attestation Flag	false
Document Annual Report	true
Document Transition Report	false
Entity File Number	000-51274
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	36-6815533
Entity Address, Address Line One	25568 Genesee Trail Road
Entity Address, City or Town	Golden
Entity Address, State or Province	CO
Entity Address, Postal Zip Code	80401
City Area Code	(303)
Local Phone Number	454-5500
Entity Interactive Data Current	Yes
Auditor Firm ID	349
Auditor Name	Spicer Jeffries LLP
Auditor Location	Denver, Colorado
Frontier Diversified Fund
Document Information Line Items
Entity Common Stock, Shares Outstanding	36,021
Frontier Long/Short Commodity Fund
Document Information Line Items
Entity Common Stock, Shares Outstanding	14,839
Frontier Masters Fund
Document Information Line Items
Entity Common Stock, Shares Outstanding	10,527
Frontier Balanced Fund
Document Information Line Items
Entity Common Stock, Shares Outstanding	105,488
Frontier Select Fund
Document Information Line Items
Entity Common Stock, Shares Outstanding	21,857
Frontier Global Fund
Document Information Line Items
Entity Common Stock, Shares Outstanding	18,686
Frontier Heritage Fund
Document Information Line Items
Entity Common Stock, Shares Outstanding	21,682

Statements of Financial Conditi

Statements of Financial Condition - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Frontier Funds [Member]
ASSETS
Cash and cash equivalents	$ 698,732	$ 468,466
U.S. Treasury securities, at fair value	140,487	2,282,606
Open trade equity, at fair value	14,836	100,440
Swap contracts, at fair value
Receivable from futures commission merchants	818,362	233,973
Investments in private investment companies, at fair value	19,595,064	23,089,312
Interest receivable	3,029	45,578
Receivable from related parties		26,129
Redemptions receivable from private investment companies		181,323
Total Assets	21,270,510	26,427,827
LIABILITIES
Incentive fees payable to Managing Owner	54,702
Management fees payable to Managing Owner	1,431	8,854
Risk analysis fees payable	10,380	9,513
Payables to related parties		26,129
LIABILITIES
Interest payable to Managing Owner	1,714	2,107
Redemptions payable	68,242	38,128
Service fees payable to Managing Owner	31,919	36,705
Trading fees payable to Managing Owner	70,998	81,698
Subscriptions in advance for service fee rebates	673,809	638,962
Other liabilities	17,625	16,592
Total Liabilities	930,820	858,688
CAPITAL
Managing Owner Units	214,522	283,217
Limited Owner Units	20,125,168	25,285,922
Total Owners’ Capital	20,339,690	25,569,139
Total Liabilities and Capital	21,270,510	26,427,827
Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member]
ASSETS
Cash and cash equivalents	165,491	87,715
U.S. Treasury securities, at fair value	33,274	427,393
Investments in private investment companies, at fair value	2,838,658	3,644,603
Investments in unconsolidated trading companies, at fair value	30,788	16,669
Interest receivable	717	8,534
Receivable from related parties		4,892
Redemptions receivable from private investment companies		31,886
Total Assets	3,068,928	4,221,692
LIABILITIES
Interest payable to Managing Owner
Redemptions payable
Service fees payable to Managing Owner	83	385
Trading fees payable to Managing Owner	9,217	12,576
Subscriptions in advance for service fee rebates	22,650	22,650
Other liabilities	3,838	3,110
Total Liabilities	35,788	38,721
CAPITAL
Total Owners’ Capital	3,033,140	4,182,971
Non-Controlling Interests
Total Capital	3,033,140	4,182,971
Total Liabilities and Capital	3,068,928	4,221,692
Frontier Masters Fund [Member] | The Series of Frontier Funds [Member]
ASSETS
Cash and cash equivalents	76,703	4,771
U.S. Treasury securities, at fair value	15,422	23,245
Investments in private investment companies, at fair value	638,376	1,014,591
Investments in unconsolidated trading companies, at fair value	14,270	907
Interest receivable	332	464
Receivable from related parties		266
Redemptions receivable from private investment companies		24,837
Total Assets	745,103	1,069,081
LIABILITIES
Interest payable to Managing Owner
Redemptions payable		38,128
Service fees payable to Managing Owner	43	70
Trading fees payable to Managing Owner	3,882	5,460
Subscriptions in advance for service fee rebates	31,725	31,725
Other liabilities	1,779	171
Total Liabilities	37,429	75,554
CAPITAL
Total Owners’ Capital	707,674	993,527
Non-Controlling Interests
Total Capital	707,674	993,527
Total Liabilities and Capital	745,103	1,069,081
Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member]
ASSETS
Cash and cash equivalents	40,528	93,327
U.S. Treasury securities, at fair value	8,148	454,738
Investments in private investment companies, at fair value	1,209,022	738,053
Investments in unconsolidated trading companies, at fair value	7,541	17,736
Interest receivable	176	9,080
Receivable from related parties		5,205
Redemptions receivable from private investment companies		1,251
Total Assets	1,265,415	1,319,390
LIABILITIES
Interest payable to Managing Owner	32	87
Redemptions payable	20,299
Service fees payable to Managing Owner	19	18
Trading fees payable to Managing Owner	3,407	2,281
Subscriptions in advance for service fee rebates	393	393
Other liabilities	941	3,308
Total Liabilities	25,091	6,087
CAPITAL
Total Owners’ Capital	1,240,324	1,313,303
Non-Controlling Interests
Total Capital	1,240,324	1,313,303
Total Liabilities and Capital	1,265,415	1,319,390
Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member]
ASSETS
Cash and cash equivalents	188,010	261,803
U.S. Treasury securities, at fair value	37,801	1,275,641
Open trade equity, at fair value	14,836	100,440
Receivable from futures commission merchants	818,362	233,973
Investments in private investment companies, at fair value	8,928,481	10,528,252
Investments in unconsolidated trading companies, at fair value	34,977	49,755
Interest receivable	815	25,471
Receivable from related parties		14,602
Redemptions receivable from private investment companies		55,473
Total Assets	10,023,282	12,545,410
LIABILITIES
Incentive fees payable to Managing Owner	54,702
Management fees payable to Managing Owner	1,431	8,854
Risk analysis fees payable	10,380	9,513
Payables to related parties
LIABILITIES
Interest payable to Managing Owner	957	1,376
Redemptions payable	20,382
Service fees payable to Managing Owner	18,314	21,381
Trading fees payable to Managing Owner	32,970	37,894
Subscriptions in advance for service fee rebates	369,341	346,855
Other liabilities	5,722	9,258
Total Liabilities	514,249	435,131
CAPITAL
Total Owners’ Capital	9,509,033	12,110,279
Non-Controlling Interests
Total Capital	9,509,033	12,110,279
Total Liabilities and Capital	10,023,282	12,545,410
Frontier Select Fund [Member] | The Series of Frontier Funds [Member]
ASSETS
Cash and cash equivalents	51,140
U.S. Treasury securities, at fair value	10,282
Open trade equity, at fair value
Receivable from futures commission merchants
Investments in private investment companies, at fair value	1,374,376	1,638,665
Investments in unconsolidated trading companies, at fair value	9,514
Interest receivable	222
Receivable from related parties
Redemptions receivable from private investment companies		67,876
Total Assets	1,445,534	1,706,541
LIABILITIES
Incentive fees payable to Managing Owner
Management fees payable to Managing Owner
Risk analysis fees payable
Payables to related parties		26,129
LIABILITIES
Interest payable to Managing Owner	196	179
Redemptions payable
Service fees payable to Managing Owner	3,524	3,709
Trading fees payable to Managing Owner	3,682	3,933
Subscriptions in advance for service fee rebates	21,076	19,463
Other liabilities	1,186
Total Liabilities	29,664	53,413
CAPITAL
Total Owners’ Capital	1,415,870	1,653,128
Non-Controlling Interests
Total Capital	1,415,870	1,653,128
Total Liabilities and Capital	1,445,534	1,706,541
Frontier Global Fund [Member] | The Series of Frontier Funds [Member]
ASSETS
Cash and cash equivalents	128,021	5,694
U.S. Treasury securities, at fair value	25,740	27,742
Investments in private investment companies, at fair value	2,137,382	3,068,656
Investments in unconsolidated trading companies, at fair value	23,818	1,083
Interest receivable	555	554
Receivable from related parties		319
Total Assets	2,315,516	3,104,048
LIABILITIES
Advance on unrealized swap appreciation
LIABILITIES
Interest payable to Managing Owner	312	326
Redemptions payable	27,561
Service fees payable to Managing Owner	4,986	6,348
Trading fees payable to Managing Owner	9,533	11,849
Subscriptions in advance for service fee rebates	158,810	154,671
Other liabilities	2,973	205
Total Liabilities	204,175	173,399
CAPITAL
Total Owners’ Capital	2,111,341	2,930,649
Non-Controlling Interests
Total Capital	2,111,341	2,930,649
Total Liabilities and Capital	2,315,516	3,104,048
Frontier Heritage Fund [Member] | The Series of Frontier Funds [Member]
ASSETS
Cash and cash equivalents	48,839	15,156
U.S. Treasury securities, at fair value	9,820	73,847
Investments in private investment companies, at fair value	2,338,774	2,367,462
Investments in unconsolidated trading companies, at fair value	9,087	2,880
Interest receivable	212	1,475
Receivable from related parties		845
Total Assets	2,406,732	2,461,665
LIABILITIES
Advance on unrealized swap appreciation
LIABILITIES
Interest payable to Managing Owner	217	139
Redemptions payable
Service fees payable to Managing Owner	4,950	4,794
Trading fees payable to Managing Owner	8,307	7,705
Subscriptions in advance for service fee rebates	69,814	63,205
Other liabilities	1,136	540
Total Liabilities	84,424	76,383
CAPITAL
Total Owners’ Capital	2,322,308	2,385,282
Non-Controlling Interests
Total Capital	2,322,308	2,385,282
Total Liabilities and Capital	2,406,732	2,461,665
Class 2 [Member] | Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Managing Owner Units	7,870	2,212
Limited Owner Units	$ 373,647	$ 464,012
Units Outstanding
Units Outstanding (in Shares)	4,288	5,241
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)	$ 88.98	$ 88.95
Class 2 [Member] | Frontier Masters Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Managing Owner Units	$ 3,781	$ 6,265
Limited Owner Units	$ 194,618	$ 257,673
Units Outstanding
Units Outstanding (in Shares)	2,828	3,908
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)	$ 70.17	$ 67.54
Class 2 [Member] | Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Managing Owner Units	$ 4,121	$ 3,939
Limited Owner Units	$ 21,045	$ 30,334
Units Outstanding
Units Outstanding (in Shares)	280	399
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)	$ 89.97	$ 85.99
Class 2 [Member] | Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Managing Owner Units	$ 43,148	$ 51,810
Limited Owner Units	$ 1,489,930	$ 1,906,359
Units Outstanding
Units Outstanding (in Shares)	10,998	15,000
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)	$ 139.4	$ 130.54
Class 2 [Member] | Frontier Select Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Managing Owner Units	$ 14,981	$ 17,210
Limited Owner Units	$ 56,112	$ 50,769
Units Outstanding
Units Outstanding (in Shares)	677	723
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)	$ 105.1	$ 94.2
Class 2 [Member] | Frontier Global Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Managing Owner Units	$ 25,029	$ 31,366
Limited Owner Units	$ 159,984	$ 157,311
Units Outstanding
Units Outstanding (in Shares)	1,086	1,126
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)	$ 170.4	$ 167.56
Class 2 [Member] | Frontier Heritage Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Managing Owner Units	$ 23,919	$ 24,105
Limited Owner Units	$ 170,897	$ 183,565
Units Outstanding
Units Outstanding (in Shares)	1,127	1,332
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)	$ 172.91	$ 155.92
Class 2a [Member] | Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Managing Owner Units
Limited Owner Units
Units Outstanding
Units Outstanding (in Shares)
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)
Class 2a [Member] | Frontier Masters Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Managing Owner Units
Limited Owner Units
Units Outstanding
Units Outstanding (in Shares)
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)
Class 2a [Member] | Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Managing Owner Units	$ 7,619	$ 8,274
Limited Owner Units	$ 76,239	$ 76,583
Units Outstanding
Units Outstanding (in Shares)	1,428	1,535
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)	$ 58.75	$ 55.29
Class 2a [Member] | Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Managing Owner Units	$ 56,328	$ 75,416
Limited Owner Units		$ 30,961
Units Outstanding
Units Outstanding (in Shares)	466	940
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)	$ 120.98	$ 113.2
Class 2a [Member] | Frontier Select Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Managing Owner Units
Limited Owner Units
Units Outstanding
Units Outstanding (in Shares)
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)
Class 3 [Member] | Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Managing Owner Units	$ 22,677	$ 54,405
Limited Owner Units	$ 2,628,946	$ 3,508,082
Units Outstanding
Units Outstanding (in Shares)	31,733	42,754
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)	$ 83.56	$ 83.33
Class 3 [Member] | Frontier Masters Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Managing Owner Units	$ 3,933	$ 7,167
Limited Owner Units	$ 505,342	$ 712,682
Units Outstanding
Units Outstanding (in Shares)	7,699	11,333
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)	$ 66.15	$ 63.52
Class 3 [Member] | Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Managing Owner Units
Limited Owner Units	$ 923,058	$ 976,771
Units Outstanding
Units Outstanding (in Shares)	9,780	10,828
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)	$ 94.38	$ 90.21
Class 3a [Member] | Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Managing Owner Units
Limited Owner Units
Units Outstanding
Units Outstanding (in Shares)
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)
Class 3a [Member] | Frontier Masters Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Managing Owner Units
Limited Owner Units
Units Outstanding
Units Outstanding (in Shares)
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)
Class 3a [Member] | Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Managing Owner Units	$ 1,116	$ 1,048
Limited Owner Units	$ 207,126	$ 216,354
Units Outstanding
Units Outstanding (in Shares)	3,351	3,725
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)	$ 62.16	$ 58.37
Class 3a [Member] | Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Limited Owner Units	$ 381,759	$ 507,148
Units Outstanding
Units Outstanding (in Shares)	3,166	4,495
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)	$ 120.57	$ 112.81
Class 3a [Member] | Frontier Select Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Limited Owner Units
Units Outstanding
Units Outstanding (in Shares)
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)
Class 1 [Member] | Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Limited Owner Units		$ 154,260
Units Outstanding
Units Outstanding (in Shares)		2,122
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)		$ 72.68
Class 1 [Member] | Frontier Masters Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Limited Owner Units		$ 9,740
Units Outstanding
Units Outstanding (in Shares)		177
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)		$ 55.18
Class 1 [Member] | Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Limited Owner Units
Units Outstanding
Units Outstanding (in Shares)
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)
Class 1 [Member] | Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Limited Owner Units	$ 7,471,841	$ 9,430,532
Units Outstanding
Units Outstanding (in Shares)	90,219	117,991
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)	$ 82.82	$ 79.93
Class 1 [Member] | Frontier Select Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Limited Owner Units	$ 1,334,518	$ 1,575,328
Units Outstanding
Units Outstanding (in Shares)	21,051	26,906
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)	$ 63.39	$ 58.55
Class 1 [Member] | Frontier Global Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Limited Owner Units	$ 1,926,328	$ 2,741,972
Units Outstanding
Units Outstanding (in Shares)	17,600	24,725
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)	$ 109.45	$ 110.9
Class 1 [Member] | Frontier Heritage Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Limited Owner Units	$ 2,119,250	$ 2,169,152
Units Outstanding
Units Outstanding (in Shares)	20,491	22,572
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)	$ 103.43	$ 96.1
Class 1AP [Member] | Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Limited Owner Units	$ 66,027	$ 108,053
Units Outstanding
Units Outstanding (in Shares)	639	1,116
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)	$ 103.38	$ 96.81
Class 1AP [Member] | Frontier Select Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Limited Owner Units	$ 10,259	$ 9,821
Units Outstanding
Units Outstanding (in Shares)	129	138
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)	$ 79.21	$ 70.99
Class 1AP [Member] | Frontier Global Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Limited Owner Units
Units Outstanding
Units Outstanding (in Shares)
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)
Class 1AP [Member] | Frontier Heritage Fund [Member] | The Series of Frontier Funds [Member]
CAPITAL
Limited Owner Units	$ 8,242	$ 8,460
Units Outstanding
Units Outstanding (in Shares)	64	73
Net Asset Value per Unit
Net Asset Value per Unit (in Dollars per share)	$ 129.19	$ 116.5

Statements of Operations

Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Frontier Funds [Member]
Investment income:
Interest - net	$ 11,678	$ 13,388	$ 98,785
Total Income/(loss)	11,678	13,388	98,785
Expenses:
Incentive Fees (rebate)	158,775
Management Fees	18,441	19,600	78,678
Service Fees - Class 1	452,671	597,679	1,028,325
Risk analysis Fees	5,532	5,880	5,576
Due Diligence Fees	5,717	10,970
Trading Fees	941,238	1,311,400	2,216,815
Total Expenses	1,582,374	1,945,529	3,329,394
Investment (loss) - net	(1,570,696)	(1,932,141)	(3,230,609)
Other Fees
Realized and unrealized gain/(loss) on investments:
Net realized gain/(loss) on futures, forwards and options	872,699	598,263	(1,221,223)
Net change in open trade equity/(deficit)	(89,306)	30,465	568,782
Trading commissions	(15,423)	(21,148)	(37,464)
Realized and unrealized gain/(loss) on investments:
Net unrealized gain/(loss) on private investment companies	511,420	1,738,708	3,941,383
Net realized gain/(loss) on private investment companies	1,417,718	(4,194,080)	(2,575,249)
Net realized gain/(loss) on swap contracts		(2,896,106)
Net unrealized gain/(loss) on swap contracts		(4,384,210)	1,429,999
Net realized gain/(loss) on U.S. Treasury securities	(34,992)	36,920	59,992
Net unrealized gain/(loss) on U.S. Treasury securities	(866)	3,430	(39,696)
Net gain/(loss) on investments	2,661,250	(9,087,758)	2,126,524
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS	1,090,554	(11,019,899)	(1,104,086)
Frontier Diversified Fund [Member] | The Series of the Frontier Funds [Member]
Investment income:
Interest - net	4,550	441	19,354
Total Income/(loss)	4,550	441	19,354
Expenses:
Management Fees			2,668
Service Fees - Class 1	2,118	14,246	44,726
Due Diligence Fees	4,304	8,636
Trading Fees	125,429	251,203	493,585
Total Expenses	131,851	274,085	540,979
Investment (loss) - net	(127,301)	(273,644)	(521,625)
Realized and unrealized gain/(loss) on investments:
Net unrealized gain/(loss) on private investment companies	98,954	946,785	907,504
Net realized gain/(loss) on private investment companies	98,105	(1,549,052)	(730,551)
Net realized gain/(loss) on swap contracts		(446,306)
Net unrealized gain/(loss) on swap contracts		(1,537,399)	464,169
Net realized gain/(loss) on U.S. Treasury securities	(4,809)	(14,579)	14,359
Net unrealized gain/(loss) on U.S. Treasury securities	(832)	23,758	(19,045)
Change in fair value of investments in unconsolidated trading companies	5,041	11,127	(84,431)
Net gain/(loss) on investments	196,459	(2,565,666)	552,005
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS	69,158	(2,839,310)	30,380
Less: Operations attributable to non-controlling interests
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS	69,158	(2,839,310)	30,380
Frontier Masters Fund [Member] | The Series of the Frontier Funds [Member]
Investment income:
Interest - net	3,141	2,476	4,656
Total Income/(loss)	3,141	2,476	4,656
Expenses:
Management Fees			7,665
Service Fees - Class 1	628	1,786	11,635
Due Diligence Fees	1,032	1,971
Trading Fees	52,957	101,300	213,153
Total Expenses	54,617	105,057	232,453
Investment (loss) - net	(51,476)	(102,581)	(227,797)
Realized and unrealized gain/(loss) on investments:
Net unrealized gain/(loss) on private investment companies	64,947	393,123	(162,637)
Net realized gain/(loss) on private investment companies	24,753	(754,772)	(159,651)
Net realized gain/(loss) on swap contracts
Net unrealized gain/(loss) on swap contracts
Net realized gain/(loss) on U.S. Treasury securities	(3,365)	8,759	15,346
Net unrealized gain/(loss) on U.S. Treasury securities	227	(4,357)	(9,501)
Change in fair value of investments in unconsolidated trading companies	12,521	(3,287)	(67,029)
Net gain/(loss) on investments	99,083	(360,534)	(383,472)
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS	47,607	(463,115)	(611,269)
Less: Operations attributable to non-controlling interests
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS	47,607	(463,115)	(611,269)
Frontier Long/Short Commodity Fund [Member] | The Series of the Frontier Funds [Member]
Investment income:
Interest - net	3,722	4,010	2,018
Total Income/(loss)	3,722	4,010	2,018
Expenses:
Management Fees
Service Fees - Class 1	228	381	562
Due Diligence Fees	381	363
Trading Fees	38,961	32,628	54,334
Total Expenses	39,570	33,372	54,896
Investment (loss) - net	(35,848)	(29,362)	(52,878)
Realized and unrealized gain/(loss) on investments:
Net unrealized gain/(loss) on private investment companies	53,498	283,384	198,426
Net realized gain/(loss) on private investment companies	47,148	(405,836)	(428,509)
Net realized gain/(loss) on swap contracts		188,100
Net unrealized gain/(loss) on swap contracts		44,277	(116,581)
Net realized gain/(loss) on U.S. Treasury securities	(5,738)	737	977
Net unrealized gain/(loss) on U.S. Treasury securities	1,187	(1,009)	2,447
Change in fair value of investments in unconsolidated trading companies	14,025	(11,314)	35
Net gain/(loss) on investments	110,120	98,339	(343,205)
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS	74,272	68,977	(396,083)
Less: Operations attributable to non-controlling interests
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS	74,272	68,977	(396,083)
Frontier Balanced Fund [Member] | The Series of the Frontier Funds [Member]
Investment income:
Interest - net	265	6,461	46,019
Total Income/(loss)	265	6,461	46,019
Expenses:
Incentive Fees (rebate)	158,775
Management Fees	18,441	19,600	22,377
Service Fees - Class 1	258,209	351,503	606,359
Risk analysis Fees	5,532	5,880	5,576
Trading Fees	435,300	580,978	972,678
Total Expenses	876,257	957,961	1,606,990
Investment (loss) - net	(875,992)	(951,500)	(1,560,971)
Other Fees
Realized and unrealized gain/(loss) on investments:
Net realized gain/(loss) on futures, forwards and options	872,699	598,263	135,527
Net change in open trade equity/(deficit)	(89,306)	30,465	(133,881)
Trading commissions	(15,423)	(21,148)	(33,456)
Realized and unrealized gain/(loss) on investments:
Net unrealized gain/(loss) on private investment companies	171,769	619,705	1,457,718
Net realized gain/(loss) on private investment companies	542,771	(1,593,919)	(921,909)
Net realized gain/(loss) on swap contracts		(2,448,166)
Net unrealized gain/(loss) on swap contracts		(3,088,917)	1,149,846
Net realized gain/(loss) on U.S. Treasury securities	(11,502)	25,729	12,809
Net unrealized gain/(loss) on U.S. Treasury securities	1,499	(5,410)	1,058
Change in fair value of investments in unconsolidated trading companies	(32,534)	(31,150)	(140,530)
Net gain/(loss) on investments	1,439,973	(5,914,548)	1,527,182
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS	563,981	(6,866,048)	(33,789)
Less: Operations attributable to non-controlling interests
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS	563,981	(6,866,048)	(33,789)
Frontier Select Fund [Member] | The Series of the Frontier Funds [Member]
Investment income:
Interest - net			(5)
Total Income/(loss)			(5)
Expenses:
Incentive Fees (rebate)
Management Fees
Service Fees - Class 1	46,410	62,144	102,692
Risk analysis Fees
Trading Fees	46,943	53,759	85,589
Total Expenses	93,353	115,903	188,281
Investment (loss) - net	(93,353)	(115,903)	(188,286)
Other Fees
Realized and unrealized gain/(loss) on investments:
Net realized gain/(loss) on futures, forwards and options
Net change in open trade equity/(deficit)
Trading commissions
Realized and unrealized gain/(loss) on investments:
Net unrealized gain/(loss) on private investment companies	3,095	66,982	(149,095)
Net realized gain/(loss) on private investment companies	233,656	(240,757)	170,272
Net realized gain/(loss) on swap contracts		(91,989)
Net unrealized gain/(loss) on swap contracts
Net realized gain/(loss) on U.S. Treasury securities	(3,778)	3,696	(397)
Net unrealized gain/(loss) on U.S. Treasury securities	852	(2,628)	3,636
Change in fair value of investments in unconsolidated trading companies	9,337	82,965	(31,555)
Net gain/(loss) on investments	243,162	(181,731)	(7,139)
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS	149,809	(297,634)	(195,425)
Less: Operations attributable to non-controlling interests
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS	149,809	(297,634)	(195,425)
Frontier Global Fund [Member] | The Series of the Frontier Funds [Member]
Investment income:
Interest - net			(2)
Total Income/(loss)			(2)
Expenses:
Incentive Fees (rebate)
Management Fees			38,679
Service Fees - Class 1	76,678	100,858	177,833
Risk analysis Fees
Trading Fees	140,017	186,591	278,497
Total Expenses	216,695	287,449	495,009
Investment (loss) - net	(216,695)	(287,449)	(495,011)
Other Fees
Realized and unrealized gain/(loss) on investments:
Net realized gain/(loss) on futures, forwards and options
Net change in open trade equity/(deficit)
Trading commissions
Realized and unrealized gain/(loss) on investments:
Net unrealized gain/(loss) on private investment companies	(97,778)	(751,136)	1,144,682
Net realized gain/(loss) on private investment companies	292,612	455,079	(168,651)
Net realized gain/(loss) on swap contracts
Net unrealized gain/(loss) on swap contracts
Net realized gain/(loss) on U.S. Treasury securities	(2,415)	11,678	13,736
Net unrealized gain/(loss) on U.S. Treasury securities	(2,520)	(7,981)	(19,535)
Change in fair value of investments in unconsolidated trading companies	17,061	(4,495)	(353,149)
Net gain/(loss) on investments	206,960	(296,855)	617,083
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS	(9,735)	(584,304)	122,072
Less: Operations attributable to non-controlling interests
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS	(9,735)	(584,304)	122,072
Frontier Heritage Fund [Member] | The Series of the Frontier Funds [Member]
Investment income:
Interest - net			(6)
Total Income/(loss)			(6)
Expenses:
Incentive Fees (rebate)
Management Fees			7,289
Service Fees - Class 1	68,400	66,761	84,518
Risk analysis Fees
Trading Fees	101,631	104,941	118,979
Total Expenses	170,031	171,702	210,786
Investment (loss) - net	(170,031)	(171,702)	(210,792)
Other Fees
Realized and unrealized gain/(loss) on investments:
Net realized gain/(loss) on futures, forwards and options
Net change in open trade equity/(deficit)
Trading commissions
Realized and unrealized gain/(loss) on investments:
Net unrealized gain/(loss) on private investment companies	197,905	227,342	430,724
Net realized gain/(loss) on private investment companies	156,731	(83,882)	(146,186)
Net realized gain/(loss) on swap contracts		(97,745)
Net unrealized gain/(loss) on swap contracts		197,829	(67,435)
Net realized gain/(loss) on U.S. Treasury securities	(3,385)	900	3,162
Net unrealized gain/(loss) on U.S. Treasury securities	(1,279)	1,057	1,244
Change in fair value of investments in unconsolidated trading companies	15,525	(16,350)	(63,386)
Net gain/(loss) on investments	365,497	229,151	158,123
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS	195,466	57,449	(52,669)
Less: Operations attributable to non-controlling interests		95,915	(32,695)
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS	$ 195,466	$ (38,466)	$ (19,974)
Class 1 [Member] | Frontier Diversified Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 1 (in Dollars per share)	$ (72.68)	$ (28.42)	$ (1.15)
Class 1 [Member] | Frontier Masters Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 1 (in Dollars per share)	(55.18)	(17.1)	(18.82)
Class 1 [Member] | Frontier Long/Short Commodity Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 1 (in Dollars per share)
Class 1 [Member] | Frontier Balanced Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 1 (in Dollars per share)	2.89	(37.3)	(0.4)
Class 1 [Member] | Frontier Select Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 1 (in Dollars per share)	4.84	(8.01)	(4.86)
Class 1 [Member] | Frontier Global Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 1 (in Dollars per share)	(1.45)	(20.62)	(0.05)
Class 1 [Member] | Frontier Heritage Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 1 (in Dollars per share)	7.33	(1.44)	(2.29)
Class 1a [Member] | Frontier Diversified Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 1AP (in Dollars per share)
Class 1a [Member] | Frontier Masters Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 1AP (in Dollars per share)
Class 1a [Member] | Frontier Long/Short Commodity Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 1AP (in Dollars per share)		(44.2)	(12.6)
Class 2 [Member] | Frontier Diversified Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 2 (in Dollars per share)	0.03	(32.63)	0.74
Class 2 [Member] | Frontier Masters Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 2 (in Dollars per share)	2.63	(19.64)	(20.49)
Class 2 [Member] | Frontier Long/Short Commodity Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 2 (in Dollars per share)	3.98	4.39	(17.22)
Class 2 [Member] | Frontier Balanced Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 2 (in Dollars per share)	8.86	(55.28)	4.88
Class 2 [Member] | Frontier Select Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 2 (in Dollars per share)	10.9	(9.74)	(4.24)
Class 2 [Member] | Frontier Global Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 2 (in Dollars per share)	2.84	(25.26)	5.65
Class 2 [Member] | Frontier Heritage Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 2 (in Dollars per share)	16.99	2.32	1.06
Class 2a [Member] | Frontier Diversified Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 2a (in Dollars per share)
Class 2a [Member] | Frontier Masters Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 2a (in Dollars per share)
Class 2a [Member] | Frontier Long/Short Commodity Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 2a (in Dollars per share)	3.46	2.74	(13.97)
Class 2a [Member] | Frontier Balanced Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 2a (in Dollars per share)	7.78	(47.84)	4.23
Class 2a [Member] | Frontier Select Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 2a (in Dollars per share)
Class 3 [Member] | Frontier Diversified Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 3 (in Dollars per share)	0.23	(30.28)	0.98
Class 3 [Member] | Frontier Masters Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 3 (in Dollars per share)	2.63	(18.26)	(18.98)
Class 3 [Member] | Frontier Long/Short Commodity Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 3 (in Dollars per share)	4.17	4.57	(18.02)
Class 3a [Member] | Frontier Diversified Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 3a (in Dollars per share)
Class 3a [Member] | Frontier Masters Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 3a (in Dollars per share)
Class 3a [Member] | Frontier Long/Short Commodity Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 3a (in Dollars per share)	3.79	3.06	(14.51)
Class 3a [Member] | Frontier Balanced Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 3a (in Dollars per share)	7.76	(47.69)	4.24
Class 3a [Member] | Frontier Select Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 3a (in Dollars per share)
Class 1AP [Member] | Frontier Balanced Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 1AP (in Dollars per share)	6.57	(41)	3.65
Class 1AP [Member] | Frontier Select Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 1AP (in Dollars per share)	8.22	(7.52)	(3.97)
Class 1AP [Member] | Frontier Global Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 1AP (in Dollars per share)		(154.43)	4.51
Class 1AP [Member] | Frontier Heritage Fund [Member] | The Series of the Frontier Funds [Member]
NET INCREASE/(DECREASE) IN CAPITAL RESULTING FROM OPERATIONS ATTRIBUTABLE TO CONTROLLING INTERESTS PER UNIT
Class 1AP (in Dollars per share)	$ 12.69	$ 2.35	$ 2.37

Statements of Changes in Owners

Statements of Changes in Owners’ Capital (Unaudited) - USD ($)	12 Months Ended
	Dec. 31, 2021		Dec. 31, 2020		Dec. 31, 2019
Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 25,569,139		$ 48,556,593		$ 72,012,782
Net increase/(decrease) in Owners’ Capital resulting from operations	1,090,554		(11,019,899)		(1,104,086)
Owners’ Capital, Ending balance	$ 20,339,690		$ 25,569,139		$ 48,556,593
Sale of Units (including transfers) (in Shares)	7,000
Redemption of Units (including transfers) (in Shares)	(6,327,003)		(11,967,555)		(22,352,103)
Payment made by Related Party
Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	4,182,971		11,999,620		16,156,510
Sale of Units	6,000
Redemption of Units	(1,224,989)		(4,977,339)		(4,187,270)
Transfer of Units In(Out)
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests	69,158		(2,839,310)		30,380
Owners’ Capital, Ending balance	3,033,140		4,182,971		11,999,620
Frontier Masters Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	993,527		2,238,039		5,572,133
Sale of Units	1,000
Redemption of Units	(334,460)		(781,397)		(2,722,824)
Transfer of Units In(Out)
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests	47,607		(463,115)		(611,270)
Owners’ Capital, Ending balance	707,674		993,527		2,238,039
Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	1,313,303		1,334,290		2,445,207
Sale of Units
Redemption of Units	(147,251)		(89,964)		(714,834)
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests	74,272
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			68,977		(396,083)
Owners’ Capital, Ending balance	1,240,324		1,313,303		1,334,290
Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	12,110,279		22,493,761		31,820,097
Redemption of Units	(3,165,227)		(3,517,434)		(9,292,546)
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests	563,981		(6,866,048)		(33,790)
Owners’ Capital, Ending balance	9,509,033		12,110,279		22,493,761
Frontier Select Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	1,653,128		2,816,626		3,856,862
Sale of Units
Redemption of Units	(387,067)		(865,864)		(844,811)
Operations attributable to non-controlling interests
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests	149,809
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			(297,634)		(195,425)
Owners’ Capital, Ending balance	1,415,870		1,653,128		2,816,626
Frontier Global Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	2,930,649		4,848,244		8,208,291
Sale of Units
Redemption of Units	(809,573)		(1,333,291)		(3,482,118)
Operations attributable to non-controlling interests
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests	(9,735)
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			(584,304)		122,071
Owners’ Capital, Ending balance	2,111,341		2,930,649		4,848,244
Frontier Heritage Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	2,385,282		3,305,037		4,465,402
Sale of Units
Redemption of Units	(258,440)		(402,266)		(1,140,392)
Operations attributable to non-controlling interests
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests	195,466
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			(517,489)		(19,973)
Owners’ Capital, Ending balance	2,322,308		2,385,282		3,305,037
Limited Owners | Frontier Funds [Member]
Owners' Capital, Beginning balance	25,285,922		48,068,619		71,161,187
Net increase/(decrease) in Owners’ Capital resulting from operations	1,075,449		(10,910,042)		(1,099,715)
Owners’ Capital, Ending balance	$ 20,125,168		$ 25,285,922		$ 48,068,619
Redemption of Units (including transfers) (in Shares)	(6,236,203)		(11,872,655)		(21,992,853)
Payment made by Related Party
Managing Owner [Member] | Frontier Funds [Member]
Owners' Capital, Beginning balance	283,217		487,974		851,595
Net increase/(decrease) in Owners’ Capital resulting from operations	15,105		(109,857)		(4,371)
Owners’ Capital, Ending balance	$ 214,522		$ 283,217		$ 487,974
Sale of Units (including transfers) (in Shares)	7,000
Redemption of Units (including transfers) (in Shares)	(90,800)		(94,900)		(359,250)
Payment made by Related Party
Noncontrolling Interest [Member] | Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance
Sale of Units
Redemption of Units
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests
Owners’ Capital, Ending balance
Class 1 [Member] | Limited Owners | Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	154,260		1,303,195		1,703,556
Sale of Units
Redemption of Units	(161,099)				(269,710)
Transfer of Units In(Out)			(987,405)
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests	6,839		(161,530)		(130,651)
Owners’ Capital, Ending balance			154,260		1,303,195
Owners' Capital - Units, Beginning balance	$ 2,122		$ 12,890		$ 16,661
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(2,122)		(10,768)		(3,771)
Owners’ Capital - Units, Ending balance			$ 2,122		$ 12,890
Net asset value per unit, Beginning balance (in Dollars per share)	$ 72.68		$ 101.1	[1]	$ 102.25
Change in net asset value per unit (in Dollars per share)	(72.68)		(28.42)		(1.15)
Net asset value per unit, Ending balance (in Dollars per share)		[1]	$ 72.68		$ 101.1	[1]
Class 1 [Member] | Limited Owners | Frontier Masters Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 9,740		$ 12,794		$ 1,484,478
Sale of Units
Redemption of Units					(1,450,004)
Transfer of Units In(Out)	(10,187)
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests	447		(3,054)		(21,680)
Owners’ Capital, Ending balance			9,740		12,794
Owners' Capital - Units, Beginning balance	$ 177		$ 177		$ 16,296
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(177)				(16,119)
Owners’ Capital - Units, Ending balance			$ 177		$ 177
Net asset value per unit, Beginning balance (in Dollars per share)	$ 55.18		$ 72.28	[1]	$ 91.1
Change in net asset value per unit (in Dollars per share)	(55.18)		(17.1)		(18.82)
Net asset value per unit, Ending balance (in Dollars per share)		[1]	$ 55.18		$ 72.28	[1]
Class 1 [Member] | Limited Owners | Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 9,430,532		$ 17,797,600		$ 25,703,922
Redemption of Units	(2,341,345)		(2,911,348)		(7,737,266)
Payment made by Managing Owner
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests	382,654		(5,455,720)		(169,056)
Owners’ Capital, Ending balance	7,471,841		9,430,532		17,797,600
Owners' Capital - Units, Beginning balance	$ 117,991		$ 151,814		$ 218,514
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(27,772)		(33,823)		(66,700)
Owners’ Capital - Units, Ending balance	$ 90,219		$ 117,991		$ 151,814
Net asset value per unit, Beginning balance (in Dollars per share)	$ 79.93		$ 117.23		$ 117.63
Change in net asset value per unit (in Dollars per share)	2.89		(37.3)		(0.4)
Net asset value per unit, Ending balance (in Dollars per share)	$ 82.82	[1]	$ 79.93		$ 117.23
Class 1 [Member] | Limited Owners | Frontier Select Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 1,575,328		$ 2,715,051		$ 3,709,130
Sale of Units
Redemption of Units	(381,729)		(850,467)		(795,619)
Operations attributable to non-controlling interests
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests	140,919
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			(289,256)		(198,460)
Owners’ Capital, Ending balance	1,334,518		1,575,328		2,715,051
Owners' Capital - Units, Beginning balance	$ 26,906		$ 40,793		$ 51,939
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(5,855)		(13,887)		(11,146)
Owners’ Capital - Units, Ending balance	$ 21,051		$ 26,906		$ 40,793
Net asset value per unit, Beginning balance (in Dollars per share)	$ 58.55		$ 66.56		$ 71.41
Change in net asset value per unit (in Dollars per share)	4.84		(8.01)		(4.85)
Net asset value per unit, Ending balance (in Dollars per share)	$ 63.39	[1]	$ 58.55		$ 66.56
Class 1 [Member] | Limited Owners | Frontier Global Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 2,741,972		$ 4,471,980		$ 7,755,444
Sale of Units
Redemption of Units	(802,573)		(1,174,215)		(3,388,723)
Operations attributable to non-controlling interests
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests	(13,071)
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			(555,793)		105,259
Owners’ Capital, Ending balance	1,926,328		2,741,972		4,471,980
Owners' Capital - Units, Beginning balance	$ 24,724		$ 34,003		$ 58,946
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(7,124)		(9,279)		(24,943)
Owners’ Capital - Units, Ending balance	$ 17,600		$ 24,724		$ 34,003
Net asset value per unit, Beginning balance (in Dollars per share)	$ 110.9		$ 131.52		$ 131.57
Change in net asset value per unit (in Dollars per share)	(1.45)		(20.62)		(0.05)
Net asset value per unit, Ending balance (in Dollars per share)	$ 109.45	[1]	$ 110.9		$ 131.52
Class 1 [Member] | Limited Owners | Frontier Heritage Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 2,169,152		$ 2,295,623		$ 3,331,725
Sale of Units
Redemption of Units	(217,618)		(94,455)		(995,044)
Operations attributable to non-controlling interests
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests	167,716
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			(32,016)		(41,058)
Owners’ Capital, Ending balance	2,119,250		2,169,152		2,295,623
Owners' Capital - Units, Beginning balance	$ 22,572		$ 23,536		$ 33,374
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(2,081)		(964)		(9,838)
Owners’ Capital - Units, Ending balance	$ 20,491		$ 22,572		$ 23,536
Net asset value per unit, Beginning balance (in Dollars per share)	$ 96.1		$ 97.54		$ 99.83
Change in net asset value per unit (in Dollars per share)	7.33		(1.44)		(2.29)
Net asset value per unit, Ending balance (in Dollars per share)	$ 103.43	[1]	$ 96.1		$ 97.54
Class 2 [Member] | Limited Owners | Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 464,012		$ 5,597,828		$ 7,669,749
Sale of Units
Redemption of Units	(91,628)		(3,958,812)		(2,063,288)
Transfer of Units In(Out)
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests	1,263		(1,175,004)		(8,633)
Owners’ Capital, Ending balance	373,647		464,012		5,597,828
Owners' Capital - Units, Beginning balance	$ 5,217		$ 46,042		$ 63,469
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(1,018)		(40,826)		(17,427)
Owners’ Capital - Units, Ending balance	$ 4,199		$ 5,217		$ 46,042
Net asset value per unit, Beginning balance (in Dollars per share)	$ 88.95		$ 121.58	[1]	$ 120.84
Change in net asset value per unit (in Dollars per share)	0.03		(32.63)		0.74
Net asset value per unit, Ending balance (in Dollars per share)	$ 88.98	[1]	$ 88.95		$ 121.58	[1]
Class 2 [Member] | Limited Owners | Frontier Masters Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 257,673		$ 837,765		$ 1,241,610
Sale of Units
Redemption of Units	(74,835)		(379,078)		(198,224)
Transfer of Units In(Out)
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests	11,780		(201,014)		(205,621)
Owners’ Capital, Ending balance	194,618		257,673		837,765
Owners' Capital - Units, Beginning balance	$ 3,816		$ 9,610		$ 11,532
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(1,041)		(5,794)		(1,922)
Owners’ Capital - Units, Ending balance	$ 2,775		$ 3,816		$ 9,610
Net asset value per unit, Beginning balance (in Dollars per share)	$ 67.54		$ 87.18		$ 107.68
Change in net asset value per unit (in Dollars per share)	2.63		(19.64)		(20.5)
Net asset value per unit, Ending balance (in Dollars per share)	$ 70.17	[1]	$ 67.54		$ 87.18
Class 2 [Member] | Limited Owners | Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 30,334		$ 36,515		$ 78,098
Sale of Units
Redemption of Units	(11,508)		(7,667)		(32,587)
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests	2,219
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			1,486		(8,996)
Owners’ Capital, Ending balance	21,045		30,334		36,515
Owners' Capital - Units, Beginning balance	$ 353		$ 447		$ 790
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(119)		(94)		(343)
Owners’ Capital - Units, Ending balance	$ 234		$ 353		$ 447
Net asset value per unit, Beginning balance (in Dollars per share)	$ 85.99		$ 81.6		$ 98.82
Change in net asset value per unit (in Dollars per share)	3.98		4.39		(17.22)
Net asset value per unit, Ending balance (in Dollars per share)	$ 89.97	[1]	$ 85.99		$ 81.6
Class 2 [Member] | Limited Owners | Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 1,906,359		$ 3,288,105		$ 4,403,354
Redemption of Units	(539,532)		(400,453)		(1,238,298)
Payment made by Managing Owner
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests	123,103		(981,293)		123,049
Owners’ Capital, Ending balance	1,489,930		1,906,359		3,288,105
Owners' Capital - Units, Beginning balance	$ 14,603		$ 17,695		$ 24,294
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(3,915)		(3,092)		(6,599)
Owners’ Capital - Units, Ending balance	$ 10,688		$ 14,603		$ 17,695
Net asset value per unit, Beginning balance (in Dollars per share)	$ 130.54		$ 185.82		$ 180.94
Change in net asset value per unit (in Dollars per share)	8.86		(55.28)		4.88
Net asset value per unit, Ending balance (in Dollars per share)	$ 139.4	[1]	$ 130.54		$ 185.82
Class 2 [Member] | Limited Owners | Frontier Select Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 50,769		$ 60,910		$ 99,467
Sale of Units
Redemption of Units	(482)		(5,197)		(34,192)
Operations attributable to non-controlling interests
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests	5,825
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			(4,944)		(4,365)
Owners’ Capital, Ending balance	56,112		50,769		60,910
Owners' Capital - Units, Beginning balance	$ 539		$ 585		$ 919
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(4)		(46)		(333)
Owners’ Capital - Units, Ending balance	$ 535		$ 539		$ 585
Net asset value per unit, Beginning balance (in Dollars per share)	$ 94.2		$ 103.94		$ 108.18
Change in net asset value per unit (in Dollars per share)	10.9		(9.74)		4.23
Net asset value per unit, Ending balance (in Dollars per share)	$ 105.1	[1]	$ 94.2		$ 103.94
Class 2 [Member] | Limited Owners | Frontier Global Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 157,311		$ 293,159		$ 313,167
Sale of Units
Redemption of Units			(119,499)		(32,395)
Operations attributable to non-controlling interests
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests	2,673
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			(16,349)		12,387
Owners’ Capital, Ending balance	159,984		157,311		293,159
Owners' Capital - Units, Beginning balance	$ 939		$ 1,520		$ 1,673
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)			(581)		(153)
Owners’ Capital - Units, Ending balance	$ 939		$ 939		$ 1,520
Net asset value per unit, Beginning balance (in Dollars per share)	$ 167.56		$ 192.82		$ 187.17
Change in net asset value per unit (in Dollars per share)	2.84		(25.26)		5.65
Net asset value per unit, Ending balance (in Dollars per share)	$ 170.4	[1]	$ 167.56		$ 192.82
Class 2 [Member] | Limited Owners | Frontier Heritage Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 183,565		$ 493,464		$ 573,992
Sale of Units
Redemption of Units	(36,721)		(303,112)		(94,154)
Operations attributable to non-controlling interests
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests	24,053
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			(6,787)		13,626
Owners’ Capital, Ending balance	170,897		183,565		493,464
Owners' Capital - Units, Beginning balance	$ 1,177		$ 3,213		$ 3,763
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(189)		(2,036)		(550)
Owners’ Capital - Units, Ending balance	$ 988		$ 1,177		$ 3,213
Net asset value per unit, Beginning balance (in Dollars per share)	$ 155.92		$ 153.59		$ 152.53
Change in net asset value per unit (in Dollars per share)	16.99		2.32		1.06
Net asset value per unit, Ending balance (in Dollars per share)	$ 172.91	[1]	$ 155.92		$ 153.59
Class 2 [Member] | Managing Owner [Member] | Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 2,212		$ 3,023		$ 3,005
Sale of Units	6,000
Redemption of Units
Transfer of Units In(Out)
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests	(342)		(811)		18
Owners’ Capital, Ending balance	7,870		2,212		3,023
Owners' Capital - Units, Beginning balance	$ 25		$ 25		$ 25
Sale of Units (including transfers) (in Shares)	64
Redemption of Units (including transfers) (in Shares)
Owners’ Capital - Units, Ending balance	$ 89		$ 25		$ 25
Class 2 [Member] | Managing Owner [Member] | Frontier Masters Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	6,265		13,043		51,365
Sale of Units	1,000
Redemption of Units	(3,500)		(4,200)		(33,750)
Transfer of Units In(Out)
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests	16		(2,578)		(4,572)
Owners’ Capital, Ending balance	3,781		6,265		13,043
Owners' Capital - Units, Beginning balance	$ 93		$ 149		$ 477
Sale of Units (including transfers) (in Shares)	13
Redemption of Units (including transfers) (in Shares)	(53)		(56)		(328)
Owners’ Capital - Units, Ending balance	$ 53		$ 93		$ 149
Class 2 [Member] | Managing Owner [Member] | Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	3,939		4,530		5,998
Sale of Units
Redemption of Units			(800)		(500)
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests	182
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			209		(968)
Owners’ Capital, Ending balance	4,121		3,939		4,530
Owners' Capital - Units, Beginning balance	$ 46		$ 56		$ 61
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)			(10)		(5)
Owners’ Capital - Units, Ending balance	$ 46		$ 46		$ 56
Class 2 [Member] | Managing Owner [Member] | Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	51,810		73,748		125,021
Redemption of Units	(12,500)				(53,000)
Payment made by Managing Owner
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests	3,838		(21,938)		1,727
Owners’ Capital, Ending balance	43,148		51,810		73,748
Owners' Capital - Units, Beginning balance	$ 397		$ 397		$ 691
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(87)				(294)
Owners’ Capital - Units, Ending balance	$ 310		$ 397		$ 397
Net asset value per unit, Beginning balance (in Dollars per share)
Class 2 [Member] | Managing Owner [Member] | Frontier Select Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	17,210		29,831		$ 46,368
Sale of Units
Redemption of Units	(4,200)		(10,200)		(15,000)
Operations attributable to non-controlling interests
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests	1,971
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			(2,421)		(1,537)
Owners’ Capital, Ending balance	14,981		17,210		29,831
Owners' Capital - Units, Beginning balance	$ 183		$ 288		$ 429
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(41)		(105)		(141)
Owners’ Capital - Units, Ending balance	$ 142		$ 183		$ 288
Class 2 [Member] | Managing Owner [Member] | Frontier Global Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	31,366		50,058		107,598
Sale of Units
Redemption of Units	(7,000)		(14,300)		(61,000)
Operations attributable to non-controlling interests
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests	663
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			(4,392)		3,460
Owners’ Capital, Ending balance	25,029		31,366		50,058
Owners' Capital - Units, Beginning balance	$ 187		$ 260		$ 575
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(40)		(73)		(315)
Owners’ Capital - Units, Ending balance	$ 147		$ 187		$ 260
Class 2 [Member] | Managing Owner [Member] | Frontier Heritage Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	24,105		28,593		46,961
Sale of Units
Redemption of Units	(3,000)		(4,700)		(18,500)
Operations attributable to non-controlling interests
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests	2,814
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			212		132
Owners’ Capital, Ending balance	23,919		24,105		28,593
Owners' Capital - Units, Beginning balance	$ 155		$ 186		$ 308
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(16)		(31)		(122)
Owners’ Capital - Units, Ending balance	$ 139		$ 155		$ 186
Class 3 [Member] | Limited Owners | Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	3,508,082		4,979,641		6,607,774
Sale of Units
Redemption of Units	(939,962)		(987,627)		(1,796,772)
Transfer of Units In(Out)			987,405
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests	60,826		(1,471,337)		168,639
Owners’ Capital, Ending balance	2,628,946		3,508,082		4,979,641
Owners' Capital - Units, Beginning balance	$ 42,100		$ 43,832		$ 58,671
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(10,638)		(1,732)		(14,839)
Owners’ Capital - Units, Ending balance	$ 31,462		$ 42,100		$ 43,832
Net asset value per unit, Beginning balance (in Dollars per share)	$ 83.33		$ 113.61	[1]	$ 112.62
Change in net asset value per unit (in Dollars per share)	0.23		(30.28)		0.98
Net asset value per unit, Ending balance (in Dollars per share)	$ 83.56	[1]	$ 83.33		$ 113.61	[1]
Class 3 [Member] | Limited Owners | Frontier Masters Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 712,682		$ 1,365,209		$ 2,774,661
Sale of Units
Redemption of Units	(252,625)		(398,119)		(1,032,846)
Transfer of Units In(Out)	10,187
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests	35,098		(254,408)		(376,606)
Owners’ Capital, Ending balance	505,342		712,682		1,365,209
Owners' Capital - Units, Beginning balance	$ 11,220		$ 16,693		$ 27,537
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(3,581)		(5,473)		(10,844)
Owners’ Capital - Units, Ending balance	$ 7,639		$ 11,220		$ 16,693
Net asset value per unit, Beginning balance (in Dollars per share)	$ 63.52		$ 81.78		$ 100.77
Change in net asset value per unit (in Dollars per share)	2.63		(18.26)		(18.99)
Net asset value per unit, Ending balance (in Dollars per share)	$ 66.15	[1]	$ 63.52		$ 81.78
Class 3 [Member] | Limited Owners | Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 976,771		$ 991,828		$ 1,791,417
Sale of Units
Redemption of Units	(106,533)		(66,892)		(519,520)
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests	52,820
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			51,835		(280,069)
Owners’ Capital, Ending balance	923,058		976,771		991,828
Owners' Capital - Units, Beginning balance	$ 10,828		$ 11,581		$ 17,283
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(1,048)		(753)		(5,702)
Owners’ Capital - Units, Ending balance	$ 9,780		$ 10,828		$ 11,581
Net asset value per unit, Beginning balance (in Dollars per share)	$ 90.21		$ 85.64		$ 103.66
Change in net asset value per unit (in Dollars per share)	4.17		4.57		(18.02)
Net asset value per unit, Ending balance (in Dollars per share)	$ 94.38	[1]	$ 90.21		$ 85.64
Class 3 [Member] | Managing Owner [Member] | Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 54,405		$ 115,933		$ 172,426
Sale of Units
Redemption of Units	(32,300)		(30,900)		(57,500)
Transfer of Units In(Out)
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests	572		(30,628)		1,007
Owners’ Capital, Ending balance	22,677		54,405		115,933
Owners' Capital - Units, Beginning balance	$ 653		$ 1,020		$ 1,531
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(382)		(368)		(511)
Owners’ Capital - Units, Ending balance	$ 271		$ 653		$ 1,020
Class 3 [Member] | Managing Owner [Member] | Frontier Masters Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	7,167		9,228		20,019
Sale of Units
Redemption of Units	(3,500)				(8,000)
Transfer of Units In(Out)
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests	266		(2,061)		(2,791)
Owners’ Capital, Ending balance	3,933		7,167		9,228
Owners' Capital - Units, Beginning balance	$ 113		$ 113		$ 199
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(53)				(86)
Owners’ Capital - Units, Ending balance	$ 60		$ 113		$ 113
Noncontrolling Interest [Member] | Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance
Sale of Units
Redemption of Units
Transfer of Units In(Out)
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests
Owners’ Capital, Ending balance
Noncontrolling Interest [Member] | Frontier Masters Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance
Sale of Units
Redemption of Units
Transfer of Units In(Out)
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests
Owners’ Capital, Ending balance
Noncontrolling Interest [Member] | Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance
Redemption of Units
Payment made by Managing Owner
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests
Owners’ Capital, Ending balance
Noncontrolling Interest [Member] | Frontier Select Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance
Sale of Units
Redemption of Units
Operations attributable to non-controlling interests
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests
Owners’ Capital, Ending balance
Noncontrolling Interest [Member] | Frontier Global Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance
Sale of Units
Redemption of Units
Operations attributable to non-controlling interests
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests
Owners’ Capital, Ending balance
Noncontrolling Interest [Member] | Frontier Heritage Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance			479,024		511,718
Sale of Units
Redemption of Units					(32,694)
Operations attributable to non-controlling interests
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			(479,024)
Owners’ Capital, Ending balance					479,024
Class 1a [Member] | Limited Owners | Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance			11,447		20,051
Sale of Units
Redemption of Units					(4,858)
Transfer of Units In(Out)			(11,267)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			(180)		(3,746)
Owners’ Capital, Ending balance					11,447
Owners' Capital - Units, Beginning balance			$ 259		$ 352
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)			(259)		(93)
Owners’ Capital - Units, Ending balance					$ 259
Net asset value per unit, Beginning balance (in Dollars per share)			$ 44.2		$ 56.8
Change in net asset value per unit (in Dollars per share)			(44.2)		(12.6)
Net asset value per unit, Ending balance (in Dollars per share)		[1]			$ 44.2
Class 2a [Member] | Limited Owners | Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 76,583		$ 73,965		$ 165,985
Sale of Units
Redemption of Units	(4,963)		(1,193)		(62,516)
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests	4,619
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			3,811		(29,504)
Owners’ Capital, Ending balance	76,239		76,583		73,965
Owners' Capital - Units, Beginning balance	$ 1,386		$ 1,409		$ 2,495
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(87)		(23)		(1,086)
Owners’ Capital - Units, Ending balance	$ 1,299		$ 1,386		$ 1,409
Net asset value per unit, Beginning balance (in Dollars per share)	$ 55.29		$ 52.55		$ 66.52
Change in net asset value per unit (in Dollars per share)	3.46		2.74		(13.97)
Net asset value per unit, Ending balance (in Dollars per share)	$ 58.75	[1]	$ 55.29		$ 52.55
Class 2a [Member] | Limited Owners | Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 30,961		$ 44,048		$ 88,076
Redemption of Units	(34,162)				(45,814)
Payment made by Managing Owner
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests	3,201		(13,087)		1,786
Owners’ Capital, Ending balance			30,961		44,048
Owners' Capital - Units, Beginning balance	$ 274		$ 274		$ 562
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(274)				(288)
Owners’ Capital - Units, Ending balance			$ 274		$ 274
Net asset value per unit, Beginning balance (in Dollars per share)	$ 113.2		$ 161.04		$ 156.81
Change in net asset value per unit (in Dollars per share)	7.78		(47.84)		4.23
Net asset value per unit, Ending balance (in Dollars per share)	$ 120.98	[1]	$ 113.2		$ 161.04
Class 2a [Member] | Managing Owner [Member] | Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 8,274		$ 7,861		$ 20,484
Sale of Units
Redemption of Units	(1,300)				(9,000)
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests	645
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			413		(3,623)
Owners’ Capital, Ending balance	7,619		8,274		7,861
Owners' Capital - Units, Beginning balance	$ 149		$ 149		$ 307
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(20)				(158)
Owners’ Capital - Units, Ending balance	$ 129		$ 149		$ 149
Class 2a [Member] | Managing Owner [Member] | Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	75,416		151,133		251,097
Redemption of Units	(23,500)		(29,800)		(78,594)
Payment made by Managing Owner
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests	4,412		(45,917)		(21,370)
Owners’ Capital, Ending balance	56,328		75,416		151,133
Owners' Capital - Units, Beginning balance	$ 666		$ 938		$ 1,601
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(200)		(272)		(663)
Owners’ Capital - Units, Ending balance	$ 466		$ 666		$ 938
Net asset value per unit, Beginning balance (in Dollars per share)
Class 3a [Member] | Limited Owners | Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	216,354		207,151		$ 361,921
Sale of Units
Redemption of Units	(22,947)		(13,411)		(85,853)
Transfer of Units In(Out)			11,267
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests	13,719
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			11,347		(68,917)
Owners’ Capital, Ending balance	207,126		216,354		207,151
Owners' Capital - Units, Beginning balance	$ 3,707		$ 3,745		$ 5,180
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(374)		(38)		(1,435)
Owners’ Capital - Units, Ending balance	$ 3,333		$ 3,707		$ 3,745
Net asset value per unit, Beginning balance (in Dollars per share)	$ 58.37		$ 55.31		$ 69.83
Change in net asset value per unit (in Dollars per share)	3.79		3.06		(14.52)
Net asset value per unit, Ending balance (in Dollars per share)	$ 62.16	[1]	$ 58.37		$ 55.31
Class 3a [Member] | Limited Owners | Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 507,148		$ 900,583		$ 893,515
Redemption of Units	(163,035)		(121,641)		(16,647)
Payment made by Managing Owner
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests	37,646		(271,794)		23,714
Owners’ Capital, Ending balance	381,759		507,148		900,583
Owners' Capital - Units, Beginning balance	$ 4,495		$ 5,611		$ 5,718
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(1,329)		(1,116)		(107)
Owners’ Capital - Units, Ending balance	$ 3,166		$ 4,495		$ 5,611
Net asset value per unit, Beginning balance (in Dollars per share)	$ 112.81		$ 160.5		$ 156.26
Change in net asset value per unit (in Dollars per share)	7.76		(47.69)		4.24
Net asset value per unit, Ending balance (in Dollars per share)	$ 120.57	[1]	$ 112.81		$ 160.5
Class 3a [Member] | Managing Owner [Member] | Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 1,048		$ 993		$ 1,253
Sale of Units
Redemption of Units
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests	68
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			55		(260)
Owners’ Capital, Ending balance	1,116		1,048		993
Owners' Capital - Units, Beginning balance	$ 18		$ 18		$ 18
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)
Owners’ Capital - Units, Ending balance	$ 18		$ 18		$ 18
Class 1AP [Member] | Limited Owners | Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	108,053		238,544		355,112
Redemption of Units	(51,153)		(54,192)		(122,927)
Payment made by Managing Owner
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests	9,127		(76,299)		6,359
Owners’ Capital, Ending balance	66,027		108,053		238,544
Owners' Capital - Units, Beginning balance	$ 1,116		$ 1,731		$ 2,643
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(477)		(615)		(912)
Owners’ Capital - Units, Ending balance	$ 639		$ 1,116		$ 1,731
Net asset value per unit, Beginning balance (in Dollars per share)	$ 96.81		$ 137.81		$ 134.16
Change in net asset value per unit (in Dollars per share)	6.57		(41)		3.65
Net asset value per unit, Ending balance (in Dollars per share)	$ 103.38	[1]	$ 96.81		$ 137.81
Class 1AP [Member] | Limited Owners | Frontier Select Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 9,821		$ 10,834		$ 1,897
Sale of Units
Redemption of Units	(656)
Operations attributable to non-controlling interests
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests	1,094
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			(1,013)		8,937
Owners’ Capital, Ending balance	10,259		9,821		10,834
Owners' Capital - Units, Beginning balance	$ 138		$ 138		$ 23
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(9)				115
Owners’ Capital - Units, Ending balance	$ 129		$ 138		$ 138
Net asset value per unit, Beginning balance (in Dollars per share)	$ 70.99		$ 78.51		$ 82.48
Change in net asset value per unit (in Dollars per share)	8.22		(7.52)		(3.97)
Net asset value per unit, Ending balance (in Dollars per share)	$ 79.21	[1]	$ 70.99		$ 78.51
Class 1AP [Member] | Limited Owners | Frontier Global Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance			$ 33,047		$ 32,082
Sale of Units
Redemption of Units			(25,277)
Operations attributable to non-controlling interests
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			(7,770)		965
Owners’ Capital, Ending balance					33,047
Owners' Capital - Units, Beginning balance			$ 214		$ 214
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)			(214)
Owners’ Capital - Units, Ending balance					$ 214
Net asset value per unit, Beginning balance (in Dollars per share)			$ 154.43		$ 149.92
Change in net asset value per unit (in Dollars per share)			$ (154.43)		4.51
Net asset value per unit, Ending balance (in Dollars per share)		[1]			$ 154.43
Class 1AP [Member] | Limited Owners | Frontier Heritage Fund [Member] | The Series of Frontier Funds [Member]
Owners' Capital, Beginning balance	$ 8,460		$ 8,333		$ 1,006
Sale of Units
Redemption of Units	(1,101)
Operations attributable to non-controlling interests
Transfer of Units In(Out)
Net increase/(decrease) in Owners’
Capital resulting from operations attributable to controlling interests	883
Net increase/(decrease) in Owners’ Capital resulting from operations attributable to controlling interests			127		7,327
Owners’ Capital, Ending balance	8,242		8,460		8,333
Owners' Capital - Units, Beginning balance	$ 73		$ 73		$ 9
Sale of Units (including transfers) (in Shares)
Redemption of Units (including transfers) (in Shares)	(9)				64
Owners’ Capital - Units, Ending balance	$ 64		$ 73		$ 73
Net asset value per unit, Beginning balance (in Dollars per share)	$ 116.5		$ 114.15		$ 111.78
Change in net asset value per unit (in Dollars per share)	12.69		2.35		2.37
Net asset value per unit, Ending balance (in Dollars per share)	$ 129.19	[1]	$ 116.5		$ 114.15
[1]	Values are for both the Managing Owner and Limited Owners.

Statements of Cash Flows

Statements of Cash Flows - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Frontier Funds [Member]
Cash Flows from Operating Activities:
Net increase/(decrease) in capital resulting from operations	$ 1,090,554	$ (11,019,899)	$ (1,104,086)
Change in:
Net change in open trade equity	85,604	(30,465)	(568,782)
Net change in ownership allocation of U.S. Treasury securities	(16,260)
Net unrealized (gain)/loss on swap contracts		4,384,210	(1,429,998)
Net realized (gain)/loss on swap contracts		2,896,106
Net unrealized (gain)/loss on U.S. Treasury securities	866	(3,430)	39,696
Net realized (gain)/loss on U.S. Treasuries securities	34,992	(36,920)	(59,992)
Net unrealized (gain)/loss on private investment companies	(511,420)	(1,717,767)	(3,941,384)
Net realized (gain)/loss on private investment companies	(1,417,718)	4,173,139	2,575,249
(Purchases) sales of:
Sales of swap contracts		14,543,253
(Purchases) of Swap Contracts		(12,918,208)
Sales of U.S. Treasury securities	4,526,234	10,335,331	18,278,732
(Purchases) of U.S. Treasury securities	(2,415,391)	(11,894,038)	(13,272,491)
U.S. Treasury interest and premium paid/amortized	11,678	13,388	85,741
(Purchases) of Private Investment Companies	(6,734,082)	(12,258,403)	(23,995,709)
Reduction of collateral in Swap contracts		12,674,504
Sales of Private Investment Companies	12,157,468	22,639,756	36,009,558
Increase and/or decrease in:
Receivable from futures commission merchants	(584,389)	2,292,269	8,729,606
Interest receivable	42,550	(32,215)	103,805
Receivable from related parties		(14,676)	(11,453)
Other assets		5,700	(557,717)
Redemptions receivable from private investment companies	181,323	370,694
Incentive fees payable to Managing Owner	54,702		67,948
Management fees payable to Managing Owner	(7,423)	59	(69,250)
Interest payable to Managing Owner	(393)	1,780	(10,525)
Trading fees payable to Managing Owner	(10,700)	(79,209)	(61,334)
Service fees payable to Managing Owner	(4,786)	(32,057)	(27,390)
Risk analysis fees payable	867	1,048	(19,097)
Payables to related parties		26,129
Advance on unrealized Swap Appreciation		(12,191,555)
Subscriptions in advance for service fee rebates	34,847	40,920	100,716
Other liabilities	1,033	(5,486)	18,075
Net cash provided by (used in) operating activities	6,520,156	12,163,958	20,879,918
Cash Flows from Financing Activities:
Proceeds from sale of capital	7,000
Payment for redemption of capital	(6,327,004)	(11,967,555)	(22,352,103)
Redemptions payable	30,114	(95,505)	109,874
Net cash provided by (used in) financing activities	(6,289,890)	(12,063,060)	(22,242,229)
Net increase (decrease) in cash and cash equivalents	230,266	100,898	(1,362,311)
Cash and cash equivalents, beginning of year	468,466	367,568	1,729,879
Cash and cash equivalents, end of year	698,732	468,466	367,568
Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member]
Cash Flows from Operating Activities:
Net increase/(decrease) in capital resulting from operations	69,158	(2,839,310)	30,380
Change in:
Net change in ownership allocation of U.S. Treasury securities	897,176	3,801,487	1,891,523
Net unrealized (gain)/loss on swap contracts		1,537,399	(464,169)
Net unrealized (gain)/loss on U.S. Treasury securities	832	(23,758)	19,045
Net realized (gain)/loss on U.S. Treasuries securities	4,809	14,579	(14,359)
Net unrealized (gain)/loss on private investment companies	(98,954)	(946,785)	(907,504)
Net realized (gain)/loss on private investment companies	(98,105)	1,549,052	730,551
(Purchases) sales of:
Sales of swap contracts	4,870,025	4,870,025
(Purchases) of Swap Contracts	(4,469,147)	(4,469,147)
Sales of U.S. Treasury securities	552,562	(1,888,716)	1,747,952
(Purchases) of U.S. Treasury securities	(1,065,811)	(2,231,818)	(2,190,500)
U.S. Treasury interest and premium paid/amortized	4,550	441	(5)
(Purchases) of Private Investment Companies	(6,219,401)	(2,163,542)	(4,995,273)
Reduction of collateral in Swap contracts	(400,878)	4,446,306
Sales of Private Investment Companies	7,222,405	7,222,405	6,950,956
Increase and/or decrease in:
Investments in unconsolidated trading companies, at fair value	(14,119)	7,481	1,136,760
Interest receivable	7,817	(6,507)	29,990
Receivable from related parties	4,892	6,561	(11,453)
Other assets		5,700	(177,606)
Redemptions receivable from private investment companies	31,886	140,020	6,380
Incentive fees payable to Managing Owner			(3,875)
Management fees payable to Managing Owner
Interest payable to Managing Owner
Trading fees payable to Managing Owner	(3,359)	(23,301)	(8,950)
Service fees payable to Managing Owner	(302)	(3,007)	(1,106)
Advance on unrealized Swap Appreciation
Subscriptions in advance for service fee rebates		119	2,101
Other liabilities	728	3,110
Net cash provided by (used in) operating activities	1,296,764	9,008,794	3,770,838
Cash Flows from Financing Activities:
Proceeds from sale of units	6,000
Payment for redemption of units	(1,224,988)	(4,977,342)	(4,187,270)
Payment made by the Managing Owner
Pending owner additions
Advance on unrealized Swap Appreciation		(4,000,000)
Change in owner redemptions payable
Net cash provided by (used in) financing activities	(1,218,988)	(8,977,342)	(4,187,270)
Net increase (decrease) in cash and cash equivalents	77,776	31,452	(416,432)
Cash and cash equivalents, beginning of year	87,715	56,263	472,695
Cash and cash equivalents, end of year	165,491	87,715	56,263
Frontier Masters Fund [Member] | The Series of Frontier Funds [Member]
Cash Flows from Operating Activities:
Net increase/(decrease) in capital resulting from operations	47,607	(463,115)	(611,269)
Change in:
Net change in ownership allocation of U.S. Treasury securities	(135,864)	346,666	651,757
Net unrealized (gain)/loss on swap contracts
Net unrealized (gain)/loss on U.S. Treasury securities	(227)	4,357	9,501
Net realized (gain)/loss on U.S. Treasuries securities	3,365	(8,759)	(15,346)
Net unrealized (gain)/loss on private investment companies	(64,947)	(393,123)	162,637
Net realized (gain)/loss on private investment companies	(24,753)	754,772	(159,651)
(Purchases) sales of:
Sales of swap contracts
(Purchases) of Swap Contracts
Sales of U.S. Treasury securities	291,260	530,370	632,031
(Purchases) of U.S. Treasury securities	(153,851)	(852,963)	(1,175,606)
U.S. Treasury interest and premium paid/amortized	3,141	2,476	4,656
(Purchases) of Private Investment Companies	(1,535,116)	(1,178,274)	(1,894,552)
Reduction of collateral in Swap contracts
Sales of Private Investment Companies	2,001,031	2,001,031	4,353,896
Increase and/or decrease in:
Investments in unconsolidated trading companies, at fair value	(13,363)	10,098	764,083
Interest receivable	132	460	2,217
Receivable from related parties	266	(266)
Other assets
Redemptions receivable from private investment companies	24,837	(24,837)
Incentive fees payable to Managing Owner
Management fees payable to Managing Owner			(8,347)
Interest payable to Managing Owner
Trading fees payable to Managing Owner	(1,578)	(6,213)	(16,311)
Service fees payable to Managing Owner	(27)	(134)	(1,546)
Advance on unrealized Swap Appreciation
Subscriptions in advance for service fee rebates		184	3,441
Other liabilities	1,608	(328)	499
Net cash provided by (used in) operating activities	443,521	722,402	2,702,090
Cash Flows from Financing Activities:
Proceeds from sale of units	1,000
Payment for redemption of units	(334,461)	(781,398)	(2,722,825)
Payment made by the Managing Owner
Pending owner additions
Advance on unrealized Swap Appreciation
Change in owner redemptions payable	(38,128)	38,128
Net cash provided by (used in) financing activities	(371,589)	(743,270)	(2,722,825)
Net increase (decrease) in cash and cash equivalents	71,932	(20,868)	(20,735)
Cash and cash equivalents, beginning of year	4,771	25,639	46,374
Cash and cash equivalents, end of year	76,703	4,771	25,639
Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member]
Cash Flows from Operating Activities:
Net increase/(decrease) in capital resulting from operations	74,272	68,977	(396,083)
Change in:
Net change in ownership allocation of U.S. Treasury securities	(139,882)	(1,347,014)	(392,620)
Net unrealized (gain)/loss on swap contracts		(44,277)	116,581
Net unrealized (gain)/loss on U.S. Treasury securities	(1,187)	1,009	(2,447)
Net realized (gain)/loss on U.S. Treasuries securities	5,738	(737)	(977)
Net unrealized (gain)/loss on private investment companies	(53,498)	(283,384)	(198,426)
Net realized (gain)/loss on private investment companies	(47,148)	405,836	428,509
(Purchases) sales of:
Sales of swap contracts	594,898	594,898
(Purchases) of Swap Contracts	(115,000)	(115,000)
Sales of U.S. Treasury securities	763,556	2,003,499	1,130,160
(Purchases) of U.S. Treasury securities	(185,359)	(1,054,832)	(594,391)
U.S. Treasury interest and premium paid/amortized	3,722	4,010	2,018
(Purchases) of Private Investment Companies	(703,517)	(206,942)	(1,222,587)
Reduction of collateral in Swap contracts	(479,898)	(73,100)
Sales of Private Investment Companies	333,194	333,194	1,734,988
Increase and/or decrease in:
Investments in unconsolidated trading companies, at fair value	10,195	(3,025)	13,452
Interest receivable	8,904	(7,784)	2,876
Receivable from related parties	5,205	(5,205)
Redemptions receivable from private investment companies	1,251	(1,251)
Incentive fees payable to Managing Owner			60,871
Management fees payable to Managing Owner
Interest payable to Managing Owner	(55)	87	(1,838)
Trading fees payable to Managing Owner	1,126	(1,187)	(51)
Service fees payable to Managing Owner	1	18
Advance on unrealized Swap Appreciation		(115,000)
Subscriptions in advance for service fee rebates		173
Other liabilities	(2,367)	2,641	887
Net cash provided by (used in) operating activities	74,151	155,604	680,922
Cash Flows from Financing Activities:
Proceeds from sale of units
Payment for redemption of units	(147,249)	(89,964)	(714,834)
Payment made by the Managing Owner
Pending owner additions
Advance on unrealized Swap Appreciation			6,585
Change in owner redemptions payable	20,299	(6,585)
Net cash provided by (used in) financing activities	(126,950)	(96,549)	(708,249)
Net increase (decrease) in cash and cash equivalents	(52,799)	59,055	(27,328)
Cash and cash equivalents, beginning of year	93,327	34,272	61,600
Cash and cash equivalents, end of year	40,528	93,327	34,272
Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member]
Cash Flows from Operating Activities:
Net increase/(decrease) in capital resulting from operations	563,981	(6,866,048)	(33,789)
Change in:
Net change in open trade equity, at fair value	85,604	15,744	104,475
Net change in ownership allocation of U.S. Treasury securities	465,487	(220,865)	1,464,296
Net unrealized (gain)/loss on swap contracts		3,088,917	(1,149,846)
Net realized (gain)/loss on swap contracts		2,448,166
Net unrealized (gain)/loss on U.S. Treasury securities	(1,499)	5,410	(1,058)
Net realized (gain)/loss on U.S. Treasuries securities	11,502	(25,729)	(12,809)
Net unrealized (gain)/loss on private investment companies	(171,769)	(619,705)	(1,457,718)
Net realized (gain)/loss on private investment companies	(542,771)	1,593,919	921,909
(Purchases) sales of:
Sales of swap contracts		7,586,366
(Purchases) of Swap Contracts		(7,355,251)
Sales of U.S. Treasury securities	1,827,896	3,915,124	1,030,440
(Purchases) of U.S. Treasury securities	(1,065,811)	(4,746,241)	(2,613,278)
U.S. Treasury interest and premium paid/amortized	265	6,461	46,019
(Purchases) of Private Investment Companies	(4,841,423)	(4,848,308)	(8,169,632)
Reduction of collateral in Swap contracts		6,176,555
Sales of Private Investment Companies	7,155,734	7,155,734	17,749,875
Increase and/or decrease in:
Receivable from futures commission merchants	(584,389)	2,292,269	157,058
Investments in unconsolidated trading companies, at fair value	14,778	1,112	1,694,132
Interest receivable	24,656	(21,201)	(1,726)
Receivable from related parties	14,602	(14,602)
Other assets			(380,111)
Redemptions receivable from private investment companies	55,473	324,638
Incentive fees payable to Managing Owner	54,702
Management fees payable to Managing Owner	(7,423)	59	(5,122)
Interest payable to Managing Owner	(419)	1,271	(1,385)
Trading fees payable to Managing Owner	(4,924)	(32,285)	(31,591)
Service fees payable to Managing Owner	(3,067)	(20,254)	(15,156)
Risk analysis fees payable	867	1,048	(662)
Payables to related parties
Subscriptions in advance for service fee rebates	22,486	27,157	61,504
Other liabilities	(3,486)	6,886	2,372
Net cash provided by (used in) operating activities	3,071,052	9,876,346	9,358,197
Cash Flows from Financing Activities:
Proceeds from sale of units
Payment for redemption of units	(3,165,227)	(3,517,435)	(9,292,547)
Payment made by the Managing Owner
Pending owner additions
Advance on unrealized Swap Appreciation		(6,176,555)
Change in owner redemptions payable	20,382	(39,059)	15,300
Net cash provided by (used in) financing activities	(3,144,845)	(9,733,049)	(9,277,247)
Net increase (decrease) in cash and cash equivalents	(73,793)	143,297	80,950
Cash and cash equivalents, beginning of year	261,803	118,506	37,556
Cash and cash equivalents, end of year	188,010	261,803	118,506
Frontier Select Fund [Member] | The Series of Frontier Funds [Member]
Cash Flows from Operating Activities:
Net increase/(decrease) in capital resulting from operations	149,809	(297,634)	(195,425)
Change in:
Net change in open trade equity, at fair value
Net change in ownership allocation of U.S. Treasury securities	(235,383)	(826,946)	(1,015,753)
Net unrealized (gain)/loss on swap contracts
Net realized (gain)/loss on swap contracts
Net unrealized (gain)/loss on U.S. Treasury securities	(852)	2,628	(3,636)
Net realized (gain)/loss on U.S. Treasuries securities	3,778	(3,696)	397
Net unrealized (gain)/loss on private investment companies	(3,095)	(66,982)	149,095
Net realized (gain)/loss on private investment companies	(233,656)	240,757	(170,272)
(Purchases) sales of:
Sales of swap contracts
(Purchases) of Swap Contracts
Sales of U.S. Treasury securities	377,421	2,403,975	2,633,295
(Purchases) of U.S. Treasury securities	(155,247)	(1,467,357)	(1,640,515)
U.S. Treasury interest and premium paid/amortized			(5)
(Purchases) of Private Investment Companies	(2,007,482)	(2,136,722)	(1,279,910)
Reduction of collateral in Swap contracts
Sales of Private Investment Companies	2,508,522	2,508,522	2,368,922
Increase and/or decrease in:
Receivable from futures commission merchants
Investments in unconsolidated trading companies, at fair value	(9,514)	505,355	17,825
Interest receivable	(222)	2,268	(570)
Receivable from related parties
Other assets
Redemptions receivable from private investment companies	67,876	(67,876)
Incentive fees payable to Managing Owner
Management fees payable to Managing Owner
Interest payable to Managing Owner	17	179
Trading fees payable to Managing Owner	(251)	(2,067)	(1,812)
Service fees payable to Managing Owner	(185)	(3,197)	(1,669)
Risk analysis fees payable
Payables to related parties	(26,129)	26,129
Subscriptions in advance for service fee rebates	1,613	2,568	5,733
Other liabilities	1,186	(8,509)	8,509
Net cash provided by (used in) operating activities	438,206	811,395	874,209
Cash Flows from Financing Activities:
Proceeds from sale of units
Payment for redemption of units	(387,066)	(865,865)	(844,811)
Payment made by the Managing Owner
Pending owner additions
Advance on unrealized Swap Appreciation
Change in owner redemptions payable		(6,875)	6,875
Net cash provided by (used in) financing activities	(387,066)	(872,740)	(837,936)
Net increase (decrease) in cash and cash equivalents	51,140	(61,345)	36,273
Cash and cash equivalents, beginning of year		61,345	25,072
Cash and cash equivalents, end of year	51,140		61,345
Frontier Global Fund [Member] | The Series of Frontier Funds [Member]
Cash Flows from Operating Activities:
Net increase/(decrease) in capital resulting from operations	(9,735)	(584,304)	122,072
Change in:
Net change in ownership allocation of U.S. Treasury securities	(101,461)	(223,579)	(2,166,060)
Net unrealized (gain)/loss on swap contracts
Net realized (gain)/loss on swap contracts
Net unrealized (gain)/loss on U.S. Treasury securities	2,520	7,981	19,535
Net realized (gain)/loss on U.S. Treasuries securities	2,415	(11,678)	(13,736)
Net unrealized (gain)/loss on private investment companies	97,778	751,136	(1,144,682)
Net realized (gain)/loss on private investment companies	(292,612)	(455,079)	168,651
(Purchases) sales of:
Sales of swap contracts
(Purchases) of Swap Contracts
Sales of U.S. Treasury securities	375,978	877,516	8,701,245
(Purchases) of U.S. Treasury securities	(277,451)	(629,240)	(3,463,172)
U.S. Treasury interest and premium paid/amortized			(2)
(Purchases) of Private Investment Companies	(1,088,812)	(556,666)	(4,899,753)
Reduction of collateral in Swap contracts
Sales of Private Investment Companies	2,214,920	2,214,920	852,817
Increase and/or decrease in:
Investments in unconsolidated trading companies, at fair value	(22,735)	10,735	4,280,256
Interest receivable	(1)	438	63,454
Receivable from related parties	319	(319)
Management fees payable to Managing Owner			(42,705)
Interest payable to Managing Owner	(14)	270	(8,068)
Trading fees payable to Managing Owner	(2,316)	(10,691)	(1,813)
Service fees payable to Managing Owner	(1,362)	(4,915)	(6,540)
Advance on unrealized Swap Appreciation
Subscriptions in advance for service fee rebates	4,139	4,646	16,744
Other liabilities	2,768	(8,338)	8,543
Net cash provided by (used in) operating activities	904,338	1,382,833	2,486,786
Cash Flows from Financing Activities:
Proceeds from sale of units
Payment for redemption of units	(809,572)	(1,333,292)	(3,482,119)
Change in non-controlling interest
Change in owner redemptions payable	27,561	(71,379)	71,379
Net cash provided by (used in) financing activities	(782,011)	(1,404,671)	(3,410,740)
Net increase (decrease) in cash and cash equivalents	122,327	(21,838)	(923,954)
Cash and cash equivalents, beginning of year	5,694	27,532	951,485
Cash and cash equivalents, end of year	128,021	5,694	27,532
Frontier Heritage Fund [Member] | The Series of Frontier Funds [Member]
Cash Flows from Operating Activities:
Net increase/(decrease) in capital resulting from operations	195,466	(38,465)	(52,669)
Change in:
Net change in ownership allocation of U.S. Treasury securities	(40,786)	(1,547,348)	(438,164)
Net unrealized (gain)/loss on swap contracts		(197,829)	67,436
Net realized (gain)/loss on swap contracts		97,745
Net unrealized (gain)/loss on U.S. Treasury securities	1,279	(1,057)	(1,244)
Net realized (gain)/loss on U.S. Treasuries securities	3,385	(900)	(3,162)
Net unrealized (gain)/loss on private investment companies	(197,905)	(227,342)	(430,724)
Net realized (gain)/loss on private investment companies	(156,731)	83,882	146,186
(Purchases) sales of:
Sales of swap contracts	1,491,966	1,491,966
(Purchases) of Swap Contracts	(978,809)	(978,809)
Sales of U.S. Treasury securities	337,555	2,493,564	2,403,609
(Purchases) of U.S. Treasury securities	(237,408)	(940,190)	(1,595,028)
U.S. Treasury interest and premium paid/amortized			(6)
(Purchases) of Private Investment Companies	(820,627)	(1,168,275)	(1,165,676)
Reduction of collateral in Swap contracts	(513,156)	2,474,936
Sales of Private Investment Companies	1,203,951	1,203,951	1,358,415
Increase and/or decrease in:
Investments in unconsolidated trading companies, at fair value	(6,207)	16,011	707,795
Interest receivable	1,263	111	7,564
Receivable from related parties	845	(845)
Management fees payable to Managing Owner			(9,201)
Interest payable to Managing Owner	78	(27)	(1,072)
Trading fees payable to Managing Owner	602	(3,465)	981
Service fees payable to Managing Owner	156	(568)	(1,322)
Advance on unrealized Swap Appreciation		(1,900,000)
Subscriptions in advance for service fee rebates	6,609	6,073	10,973
Other liabilities	596	(948)	1,488
Net cash provided by (used in) operating activities	292,122	862,171	1,006,179
Cash Flows from Financing Activities:
Proceeds from sale of units
Payment for redemption of units	(258,439)	(402,266)	(1,107,696)
Change in non-controlling interest		(479,025)
Change in owner redemptions payable		(9,735)	9,735
Net cash provided by (used in) financing activities	(258,439)	(891,026)	(1,097,961)
Net increase (decrease) in cash and cash equivalents	33,683	(28,855)	(91,782)
Cash and cash equivalents, beginning of year	15,156	44,011	135,096
Cash and cash equivalents, end of year	$ 48,839	$ 15,156	$ 44,011

Consolidated Condensed Schedule

Consolidated Condensed Schedule of Investments	12 Months Ended
	Dec. 31, 2021
Condensed Financial Information Disclosure [Abstract]
Condensed Schedules of Investments	Frontier Frontier Frontier Description Fair Value % of Total Capital Fair Value % of Total Capital Fair Value % of Total Capital PRIVATE INVESTMENT COMPANIES (2) Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC $ 875,796 28.87 % $ - 0.00 % $ - 0.00 % Galaxy Plus Fund - QIM Feeder Fund (526) LLC 185,705 6.12 % - 0.00 % - 0.00 % Galaxy Plus Fund - Quest Feeder Fund (517) LLC 453,710 14.96 % - 0.00 % - 0.00 % Galaxy Plus Fund - Aspect Feeder Fund (532) LLC 663,002 21.86 % 279,895 39.55 % - 0.00 % Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 386,996 12.76 % 193,269 27.31 % 482,639 38.91 % Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) 273,449 9.02 % 165,212 23.35 % - 0.00 % Galaxy Plus Fund – Volt Diversified Alpha Feeder Fund (550) LLC) - 0.00 % - 0.00 % 252,149 20.33 % Galaxy Plus Fund - LRR Feeder Fund (522) LLC - 0.00 % - 0.00 % 474,234 38.23 % Total Private Investment Companies $ 2,838,658 93.59 % $ 638,376 90.21 % $ 1,209,022 97.48 % INVESTMENT IN UNCONSOLIDATED TRADING COMPANIES (2) Frontier Trading Company XXXVIII, LLC $ 30,788 1.02 % $ 14,270 2.02 % $ 7,541 0.61 % Total Investment in Unconsolidated Trading Companies $ 30,788 1.02 % $ 14,270 2.02 % $ 7,541 0.61 % U.S. TREASURY SECURITIES (1) FACE VALUE Fair Value Fair Value Fair Value FACE VALUE US Treasury Note 6.875% due 08/15/2025 (Cost $142,326) $ 33,274 1.10 % $ 15,422 2.18 % $ 8,148 0.66 % Additional Disclosure on U.S. Treasury Securities Face Value Face Value Face Value US Treasury Note 6.875% due 08/15/2025 (1) $ 27,592 $ 12,789 $ 6,757 Additional Disclosure on U.S. Treasury Securities Cost Cost Cost US Treasury Note 6.875% due 08/15/2025 (1) $ 33,709 $ 15,624 $ 8,255 (1) See Note 2 to the Financial Statements. (2) See Note 5 to the Financial Statements. Frontier Frontier Balanced Fund Select Fund Description Fair Value % of Total Capital Fair Value % of Total Capital LONG FUTURES CONTRACTS* Various agriculture futures contracts (Far East) $ 10,141 0.11 % $ - 0.00 % Various agriculture futures contracts (Europe) (21,640 ) -0.23 % - 0.00 % Various agriculture futures contracts (U.S.) 51,912 0.55 % - 0.00 % Various base metals futures contracts (U.S.) 20,031 0.21 % - 0.00 % Various currency futures contracts (Europe) 1,994 0.02 % - 0.00 % Various currency futures contracts (Far East) 819 0.01 % - 0.00 % Various currency futures contracts (Latin America) 6,710 0.07 % - 0.00 % Various currency futures contracts (U.S.) (9,800 ) -0.10 % - 0.00 % Various energy futures contracts (U.S.) 34 0.00 % - 0.00 % Various interest rates futures contracts (Europe) (718,038 ) -7.55 % - 0.00 % Various interest rates futures contracts (Far East) (10,418 ) -0.11 % - 0.00 % Various interest rates futures contracts (U.S.) (7,281 ) -0.08 % - 0.00 % Various precious metal futures contracts (U.S.) 19,168 0.20 % - 0.00 % Various soft futures contracts (U.S.) 138,674 1.46 % - 0.00 % Various stock index futures contracts (Europe) 1,508 0.02 % - 0.00 % Various stock index futures contracts (Far East) 1,542 0.02 % - 0.00 % Various stock index futures contracts (Oceanic) 1,236 0.01 % - 0.00 % Various stock index futures contracts (Canada) 1,853 0.02 % - 0.00 % Total Long Futures Contracts $ (511,556 ) -5.37 % $ - 0.00 % SHORT FUTURES CONTRACTS* Various agriculture futures contracts (Far East) $ (27,804 ) -0.29 % $ - 0.00 % Various agriculture futures contracts (Europe) 20,105 0.21 % - 0.00 % Various agriculture futures contracts (U.S.) (11,749 ) -0.12 % - 0.00 % Various base metals futures contracts (U.S.) (29,574 ) -0.31 % - 0.00 % Various currency futures contracts (Europe) (18,181 ) -0.19 % - 0.00 % Various currency futures contracts (Far East) (1,110 ) -0.01 % - 0.00 % Various currency futures contracts (Latin America) (21,340 ) -0.22 % - 0.00 % Various currency futures contracts (U.S.) 6,288 0.07 % - 0.00 % Various energy futures contracts (U.S.) (10,792 ) -0.11 % - 0.00 % Various interest rates futures contracts (Europe) 785,677 8.26 % - 0.00 % Various interest rates futures contracts (U.S.) (625 ) -0.01 % - 0.00 % Various precious metal futures contracts (U.S.) (38,573 ) -0.41 % - 0.00 % Various soft futures contracts (U.S.) (110,902 ) -1.17 % - 0.00 % Various stock index futures contracts (Canada) (5,194 ) -0.05 % - 0.00 % Various stock index futures contracts (Europe) (5,157 ) -0.05 % - 0.00 % Various stock index futures contracts (Far East) (2,191 ) -0.02 % - 0.00 % Various stock index futures contracts (Oceanic) (2,217 ) -0.02 % - 0.00 % Various stock index futures contracts (U.S.) (269 ) 0.00 % - 0.00 % Total Short Futures Contracts $ 526,392 5.56 % $ - 0.00 % Total Open Trade Equity (Deficit) $ 14,836 0.19 % $ - 0.00 % PRIVATE INVESTMENT COMPANIES (2) Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC $ 1,890,115 19.88 % $ - 0.00 % Galaxy Plus Fund - QIM Feeder Fund (526) LLC 820,002 8.62 % - 0.00 % Galaxy Plus Fund - Quest Feeder Fund (517) LLC 1,134,963 11.94 % - 0.00 % Galaxy Plus Fund - Aspect Feeder Fund (532) LLC 1,658,225 17.44 % - 0.00 % Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 2,032,209 21.37 % 796,855 56.28 % Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) 1,392,967 14.65 % 577,521 40.79 % Total Private Investment Companies $ 8,928,481 93.90 % $ 1,374,376 97.07 % INVESTMENT IN UNCONSOLIDATED TRADING COMPANIES (2) Frontier Trading Company XXXVIII, LLC $ 34,977 0.37 % $ 9,514 0.67 % Total Investment in Unconsolidated Trading Companies $ 34,977 0.37 % $ 9,514 0.67 % U.S. TREASURY SECURITIES (1) FACE VALUE Fair Value Fair Value FACE VALUE US Treasury Note 6.875% due 08/15/2025 (Cost $142,326) $ 37,801 0.40 % $ 10,282 0.73 % Additional Disclosure on U.S. Treasury Securities Face Value Face Value US Treasury Note 6.875% due 08/15/2025 (1) $ 31,347 $ 8,527 Additional Disclosure on U.S. Treasury Securities Cost Cost US Treasury Note 6.875% due 08/15/2025 (1) $ 38,296 $ 10,417 * Except for those items disclosed, no individual futures, or forwards position constituted greater than 1 percent of Net Asset Value. Accordingly, the number of contracts and expiration dates are not presented. (1) See Note 2 to the Financial Statements. (2) See Note 5 to the Financial Statements. Frontier Frontier Global Fund Heritage Fund Fair % of Total Capital Fair % of Total Capital Description Value Value) Value Value) PRIVATE INVESTMENT COMPANIES (2) Galaxy Plus Fund - Aspect Feeder Fund (532) LLC $ 2,137,382 101.23 % $ 1,614,360 69.52 % Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC - - 724,414 31.19 % Total Private Investment Companies $ 2,137,382 101.23 % $ 2,338,774 100.71 % INVESTMENT IN UNCONSOLIDATED TRADING COMPANIES (2) Frontier Trading Company XXXVIII, LLC $ 23,818 1.13 % $ 9,087 0.39 % Total Investment in Unconsolidated Trading Companies $ 23,818 1.13 % $ 9,087 0.39 % U.S. TREASURY SECURITIES (1) FACE VALUE Fair Value Fair Value FACE VALUE US Treasury Note 6.875% due 08/15/2025 (Cost $142,326) $ 25,740 1.22 % $ 9,820 0.42 % Additional Disclosure on U.S. Treasury Securities Face Value Face Value US Treasury Note 6.875% due 08/15/2025 (1) $ 21,345 $ 8,143 Additional Disclosure on U.S. Treasury Securities Cost Cost US Treasury Note 6.875% due 08/15/2025 (1) $ 26,077 $ 9,948 Except for those items disclosed, no individual futures, or forwards position constituted greater than 1 percent of Net Asset Value. Accordingly, the number of contracts and expiration dates are not presented. (1) See Note 2 to the Financial Statements. (2) See Note 5 to the Financial Statements. Frontier Frontier Frontier Description Fair Value % of Total Capital Fair Value % of Total Capital Fair Value % of Total Capital PRIVATE INVESTMENT COMPANIES (2) Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC $ 1,066,074 25.49 % $ - 0.00 % $ - 0.00 % Galaxy Plus Fund - QIM Feeder Fund (526) LLC 414,692 9.91 % - 0.00 % - 0.00 % Galaxy Plus Fund - Quest Feeder Fund (517) LLC 672,766 16.08 % - 0.00 % - 0.00 % Galaxy Plus Fund - Aspect Feeder Fund (532) LLC 732,066 17.50 % 486,659 48.98 % - 0.00 % Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 435,119 10.40 % 258,609 26.03 % 272,294 20.73 % Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) 323,886 7.74 % 269,323 27.11 % - 0.00 % Galaxy Plus Fund - LRR Feeder Fund (522) LLC - 0.00 % - 0.00 % 465,759 35.46 % Total Private Investment Companies $ 3,644,603 87.12 % $ 1,014,591 102.12 % $ 738,053 56.19 % INVESTMENT IN UNCONSOLIDATED TRADING COMPANIES (2) Frontier Trading Company XXXVIII, LLC $ 16,669 0.40 % $ 907 0.09 % $ 17,736 1.35 % Total Investment in Unconsolidated Trading Companies $ 16,669 0.40 % $ 907 0.09 % $ 17,736 1.35 % U.S. TREASURY SECURITIES (1) FACE VALUE Fair Value Fair Value Fair Value FACE VALUE 0 $ 427,393 10.22 % $ 23,245 2.34 % $ 454,738 34.63 % Additional Disclosure on U.S. Treasury Securities Face Value Face Value Face Value US Treasury Note 6.875% due 08/15/2025 (1) $ 328,604 $ 17,872 $ 349,629 Additional Disclosure on U.S. Treasury Securities Cost Cost Cost US Treasury Note 6.875% due 08/15/2025 (1) $ 427,509 $ 23,251 $ 454,862 (1) See Note 2 to the Financial Statements. (2) See Note 5 to the Financial Statements. Frontier Frontier Balanced Fund Select Fund Description Fair Value % of Total Capital Fair Value % of Total Capital LONG FUTURES CONTRACTS* Various agriculture futures contracts (Far East) $ 72,005 0.59 % $ - 0.00 % Various agriculture futures contracts (Europe) 9,803 0.08 % - 0.00 % Various agriculture futures contracts (U.S.) 87,496 0.72 % - 0.00 % Various base metals futures contracts (U.S.) 22,858 0.19 % - 0.00 % Various currency futures contracts (Europe) 10,573 0.09 % - 0.00 % Various currency futures contracts (Latin America) 5,833 0.05 % - 0.00 % Various currency futures contracts (U.S.) (100 ) 0.00 % - 0.00 % Various interest rates futures contracts (Europe) 148,949 1.23 % - 0.00 % Various interest rates futures contracts (Far East) 2,882 0.02 % - 0.00 % Various interest rates futures contracts (U.S.) 2,438 0.02 % - 0.00 % Various precious metal futures contracts (U.S.) 28,625 0.24 % - 0.00 % Various soft futures contracts (U.S.) 52,349 0.43 % - 0.00 % Various stock index futures contracts (Far East) 5,312 0.04 % - 0.00 % Total Long Futures Contracts $ 449,023 3.70 % $ - 0.00 % SHORT FUTURES CONTRACTS* Various agriculture futures contracts (Far East) $ (30,963 ) -0.26 % $ - 0.00 % Various agriculture futures contracts (Europe) (10,797 ) -0.09 % - 0.00 % Various agriculture futures contracts (U.S.) (92,738 ) -0.77 % - 0.00 % Various base metals futures contracts (U.S.) (10,289 ) -0.08 % - 0.00 % Various currency futures contracts (Europe) (10,381 ) -0.09 % - 0.00 % Various currency futures contracts (Latin America) 2,512 0.02 % - 0.00 % Various currency futures contracts (U.S.) 2,300 0.02 % - 0.00 % Various interest rates futures contracts (Europe) (127,832 ) -1.06 % - 0.00 % Various interest rates futures contracts (Far East) (2,482 ) -0.02 % - 0.00 % Various interest rates futures contracts (U.S.) 3,656 0.03 % - 0.00 % Various precious metal futures contracts (U.S.) (25,560 ) -0.21 % - 0.00 % Various soft futures contracts (Far East) - 0.00 % - 0.00 % Various soft futures contracts (U.S.) (42,669 ) -0.35 % - 0.00 % Various stock index futures contracts (Far East) (3,340 ) -0.03 % - 0.00 % Total Short Futures Contracts $ (348,583 ) -2.89 % $ - 0.00 % Total Open Trade Equity (Deficit) $ 100,440 0.81 % $ - 0.00 % PRIVATE INVESTMENT COMPANIES (2) Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC $ 2,311,240 19.08 % $ - 0.00 % Galaxy Plus Fund - QIM Feeder Fund (526) LLC 1,581,941 13.06 % - 0.00 % Galaxy Plus Fund - Quest Feeder Fund (517) LLC 982,020 8.11 % - 0.00 % Galaxy Plus Fund - Aspect Feeder Fund (532) LLC 1,600,611 13.22 % - 0.00 % Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 2,612,336 21.57 % 956,968 57.89 % Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) 1,440,104 11.89 % 681,697 41.24 % Total Private Investment Companies $ 10,528,252 86.93 % $ 1,638,665 99.13 % INVESTMENT IN UNCONSOLIDATED TRADING COMPANIES (2) Frontier Trading Company XXXVIII, LLC $ 49,755 0.41 % $ - 0.00 % Total Investment in Unconsolidated Trading Companies $ 49,755 0.41 % $ - 0.00 % U.S. TREASURY SECURITIES (1) FACE VALUE Fair Value Fair Value FACE VALUE 0 $ 1,275,641 10.53 % $ - 0.00 % Additional Disclosure on U.S. Treasury Securities Face Value Face Value US Treasury Note 6.875% due 08/15/2025 (1) $ 980,787 $ - Additional Disclosure on U.S. Treasury Securities Cost Cost US Treasury Note 6.875% due 08/15/2025 (1) $ 1,275,989 $ - * Except for those items disclosed, no individual futures, or forwards position constituted greater than 1 percent of Net Asset Value. Accordingly, the number of contracts and expiration dates are not presented. (1) See Note 2 to the Financial Statements. (2) See Note 5 to the Financial Statements. Frontier Global Frontier Fund Heritage Fund Description Fair Value % of Total Capital Fair Value % of Total Capital PRIVATE INVESTMENT COMPANIES (2) Galaxy Plus Fund - Aspect Feeder Fund (532) LLC $ 3,068,656 104.71 % $ 1,539,331 64.53 % Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC - - 828,131 34.72 % Total Private Investment Companies $ 3,068,656 104.71 % $ 2,367,462 99.25 % INVESTMENT IN UNCONSOLIDATED TRADING COMPANIES (2) Frontier Trading Company XXXVIII, LLC $ 1,083 0.04 % $ 2,880 0.12 % Total Investment in Unconsolidated Trading Companies $ 1,083 0.04 % $ 2,880 0.12 % U.S. TREASURY SECURITIES (1) FACE VALUE Fair Value Fair Value FACE VALUE 0 $ 27,742 0.95 % $ 73,847 3.10 % Additional Disclosure on U.S. Treasury Securities Face Value Face Value US Treasury Note 6.875% due 08/15/2025 (1) $ 21,330 $ 56,778 Additional Disclosure on U.S. Treasury Securities Cost Cost US Treasury Note 6.875% due 08/15/2025 (1) $ 27,750 $ 73,867 * Except for those items disclosed, no individual futures, or forwards contract position constituted greater than 1 percent of Net Asset Value. Accordingly, the number of contracts and expiration dates are not presented. (1) See Note 2 to the Financial Statements. (2) See Note 5 to the Financial Statements. Description Fair % of Total Capital LONG FUTURES CONTRACTS * Various agriculture futures contracts (Far East) $ 10,141 0.05 % Various agriculture futures contracts (Europe) (21,640 ) -0.11 % Various agriculture futures contracts (U.S.) 51,912 0.26 % Various base metals futures contracts (U.S.) 20,031 0.10 % Various currency futures contracts (Europe) 1,994 0.01 % Various currency futures contracts (Far East) 819 0.00 % Various currency futures contracts (Latin America) 6,710 0.03 % Various currency futures contracts (U.S.) (9,800 ) -0.05 % Various energy futures contracts (U.S.) 34 0.00 % Various interest rates futures contracts (Europe) (718,038 ) -3.53 % Various interest rates futures contracts (Far East) (10,418 ) -0.05 % Various interest rates futures contracts (U.S.) (7,281 ) -0.04 % Various precious metal futures contracts (U.S.) 19,168 0.09 % Various soft futures contracts (U.S.) 138,674 0.68 % Various stock index futures contracts (Europe) 1,508 0.01 % Various stock index futures contracts (Far East) 1,541 0.01 % Various stock index futures contracts (Oceanic) 1,236 0.01 % Various stock index futures contracts (Canada) 1,853 0.01 % Total Long Futures Contracts $ (511,556 ) -2.52 % SHORT FUTURES CONTRACTS * Various agriculture futures contracts (Far East) $ (27,804 ) -0.14 % Various agriculture futures contracts (Europe) 20,105 0.10 % Various agriculture futures contracts (U.S.) (11,749 ) -0.06 % Various base metals futures contracts (U.S.) (29,574 ) -0.15 % Various currency futures contracts (Europe) (18,181 ) -0.09 % Various currency futures contracts (Far East) (1,110 ) -0.01 % Various currency futures contracts (Latin America) (21,340 ) -0.10 % Various currency futures contracts (U.S.) 6,288 0.03 % Various energy futures contracts (U.S.) (10,792 ) -0.05 % Various interest rates futures contracts (Europe) 785,677 3.86 % Various interest rates futures contracts (U.S.) (625 ) 0.00 % Various precious metal futures contracts (U.S.) (38,573 ) -0.19 % Various soft futures contracts (U.S.) (110,902 ) -0.55 % Various stock index futures contracts (Canada) (5,194 ) -0.03 % Various stock index futures contracts (Europe) (5,157 ) -0.03 % Various stock index futures contracts (Far East) (2,191 ) -0.01 % Various stock index futures contracts (Oceanic) (2,217 ) -0.01 % Various stock index futures contracts (U.S.) (269 ) 0.00 % Total Short Futures Contracts $ 526,392 2.57 % Total Open Trade Equity (Deficit) $ 14,836 0.05 % PRIVATE INVESTMENT COMPANIES (3) Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC $ 2,765,907 13.60 % Galaxy Plus Fund - QIM Feeder Fund (526) LLC 1,005,707 4.94 % Galaxy Plus Fund - Quest Fit Feeder Fund (535) LLC 129,995 0.64 % Galaxy Plus Fund - Quest Feeder Fund (517) LLC 1,588,673 7.81 % Galaxy Plus Fund - Aspect Feeder Fund (532) LLC 6,352,866 31.23 % Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 4,616,381 22.70 % Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) 2,409,149 11.84 % Galaxy Plus Fund – Volt Diversified Alpha Feeder Fund (550) LLC) 252,149 1.24 % Galaxy Plus Fund - LRR Feeder Fund (522) LLC 474,234 2.33 % Total Private Investment Companies $ 19,595,064 96.33 % U.S. TREASURY SECURITIES (2) FACE VALUE Fair Value US Treasury Note 6.875% due 08/15/2025 (Cost $142,326) 140,487 0.69 % Total U.S. Treasury Securities $ 140,487 0.69 % * Except for those items disclosed, no individual futures, forwards and option on futures contract position constituted greater than 1 percent of Net Asset Value. Accordingly, the number of contracts and expiration dates are not presented. (1) See Notes to Consolidated Financial Statements, Note 3. (2) See Notes to Consolidated Financial Statements, Note 2. (5) See Notes to Consolidated Financial Statements, Note 2. % of Description Fair (Net Asset LONG FUTURES CONTRACTS * Various agriculture futures contracts (Far East) $ 72,005 0.28 % Various agriculture futures contracts (Europe) 9,803 0.04 % Various agriculture futures contracts (U.S.) 87,496 0.34 % Various base metals futures contracts (U.S.) 22,858 0.09 % Various currency futures contracts (U.S.) (100 ) 0.00 % Various currency futures contracts (Europe) 10,573 0.04 % Various currency futures contracts (Latin America) 5,833 0.02 % Various interest rates futures contracts (Europe) 148,949 0.58 % Various interest rates futures contracts (Far East) 2,882 0.01 % Various interest rates futures contracts (U.S.) 2,438 0.01 % Various precious metal futures contracts (U.S.) 28,625 0.11 % Various soft futures contracts (U.S.) 52,349 0.20 % Various stock index futures contracts (Far East) 5,312 0.02 % Total Long Futures Contracts $ 449,023 1.74 % SHORT FUTURES CONTRACTS * Various agriculture futures contracts (Far East) $ (30,963 ) -0.12 % Various agriculture futures contracts (Europe) (10,797 ) -0.04 % Various agriculture futures contracts (U.S.) (92,738 ) -0.36 % Various base metals futures contracts (U.S.) (10,289 ) -0.04 % Various currency futures contracts (U.S.) 2,300 0.01 % Various currency futures contracts (Europe) (10,381 ) -0.04 % Various currency futures contracts (Latin America) 2,512 0.01 % Various interest rates futures contracts (Europe) (127,832 ) -0.50 % Various interest rates futures contracts (Far East) (2,482 ) -0.01 % Various interest rates futures contracts (U.S.) 3,656 0.01 % Various precious metal futures contracts (U.S.) (25,560 ) -0.10 % Various soft futures contracts (U.S.) (42,669 ) -0.17 % Various stock index futures contracts (Far East) (3,340 ) -0.01 % Total Short Futures Contracts $ (348,583 ) -1.36 % Total Open Trade Equity (Deficit) $ 100,440 0.38 % PRIVATE INVESTMENT COMPANIES (2) Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC $ 3,377,314 13.21 % Galaxy Plus Fund - QIM Feeder Fund (526) LLC 1,996,633 7.81 % Galaxy Plus Fund - Quest Fit Feeder Fund (535) LLC 89,029 0.35 % Galaxy Plus Fund - Quest Feeder Fund (517) LLC 1,654,786 6.47 % Galaxy Plus Fund - Aspect Feeder Fund (532) LLC 7,427,324 29.05 % Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 5,363,456 20.98 % Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) 2,715,008 10.62 % Galaxy Plus Fund - LRR Feeder Fund (522) LLC 465,759 1.82 % Total Private Investment Companies $ 23,089,312 90.31 % U.S. TREASURY SECURITIES FACE VALUE Fair Value FACE VALUE 2,282,606 8.93 % Total U.S. Treasury Securities $ 2,282,606 8.93 % * Except for those items disclosed, no individual futures, forwards and option on futures contract position constituted greater than 1 percent of Net Asset Value. Accordingly, the number of contracts and expiration dates are not presented. (1) See Notes to Consolidated Financial Statements, Note 5.

Organization and Purpose

Organization and Purpose	12 Months Ended
	Dec. 31, 2021
The Series of Frontier Funds [Member]
Organization and Purpose [Line Items]
Organization and Purpose	1. Organization and Purpose Frontier Funds, which is referred to in this report as the “Trust”, was formed on August 8, 2003, as a Delaware statutory trust. Please refer to the consolidated financial statements of the Trust included within this periodic report. The Trust is a multi-advisor commodity pool, as described in Commodity Futures Trading Commission (the “CFTC”) Regulation § 4.10(d)(2). The Trust has authority to issue separate series, or each, a Series, of units of beneficial interest (the “Units”) pursuant to the requirements of the Delaware Statutory Trust Act, as amended (the “Trust Act”). The assets of each Series are valued and accounted for separately from the assets of other Series. The Trust is not registered as an investment company under the Investment Company Act of 1940, as amended (the “Investment Company Act”). It is managed by Frontier Fund Management LLC (the “Managing Owner”). Purchasers of Units are limited owners of the Trust (“Limited Owners”) with respect to beneficial interests of the Series’ Units purchased. The Trust Act provides that, except as otherwise provided in the second amended and restated declaration of trust and trust agreement dated December 9, 2013, as further amended, by and among the Managing Owner, Wilmington Trust Company as trustee and the unitholders, as may be amended from time to time (“Trust Agreement”), unitholders of the Trust will have the same limitation of liability as do stockholders of private corporations organized under the General Corporation Law of the State of Delaware. The Trust Agreement confers substantially the same limited liability, and contains the same limited exceptions thereto, as would a limited partnership agreement for a Delaware limited partnership engaged in like transactions as the Trust. In addition, pursuant to the Trust Agreement, the Managing Owner of the Trust is liable for obligations of a Series in excess of that Series’ assets. Limited Owners do not have any such liability. The Managing Owner will make contributions to the Series of the Trust necessary to maintain at least a 1% interest in the aggregate capital, profits and losses of the combined Series of the Trust. The Trust has been organized to pool investor funds for the purpose of trading in the United States (“U.S.”) and international markets for currencies, interest rates, stock indices, agricultural and energy products, precious and base metals and other commodities. The Trust may also engage in futures contracts, forwards, option contracts and other interest in derivative instruments, including swap contracts. The Trust has seven (7) separate and distinct Series of Units issued and outstanding: Frontier Diversified Fund, Frontier Masters Fund, Frontier Long/Short Commodity Fund, Frontier Balanced Fund, Frontier Select Fund, Frontier Global Fund, and Frontier Heritage Fund, (each a “Series” and collectively, the “Series”). The Trust, with respect to the Series, may issue additional Series of Units. The Trust, with respect to each Series: ● engages in the speculative trading of a diversified portfolio of futures, forwards (including interbank foreign currencies), options contracts and other derivative instruments (including swap contracts), and may, from time to time, engage in cash and spot transactions; ● allocates funds to a limited liability trading company or companies (“Trading Company” or “Trading Companies”) and Galaxy Plus entities (“Galaxy Plus”). Except as otherwise described in these notes, each Trading Company and Galaxy Plus entity has one-year renewable contracts with its own independent commodity trading advisor(s), or each, a Trading Advisor, that will manage all or a portion of such Trading Company’s and Galaxy Plus assets and make the trading decisions for the assets of each Series vested in such Trading Company and Galaxy Plus entity. Each Trading Company and Galaxy Plus entity will segregate its assets from any other Trading Company and Galaxy Plus entity; ● maintains separate, distinct records for each Series, and accounts for the assets of each Series separately from the other Series; ● calculates the Net Asset Value (“NAV”) of its Units for each Series separately from the other Series; ● has an investment objective of increasing the value of each Series’ Units over the long term (capital appreciation), while managing risk and volatility; further, to offer exposure to the investment programs of individual Trading Advisors and to specific instruments; ● maintains each Series of Units in three to seven sub-classes—Class 1, Class 1AP, Class 1a, Class 2, Class 2a, Class 3, and Class 3a. Investors who have purchased Class 1 or Class 1a Units of Frontier Diversified Fund, Frontier Masters Fund, and Frontier Long/Short Commodity Fund are charged a service fee of up to two percent (2.0%) annually of the NAV (of the purchase price, in case of the initial service fee) of each Unit purchased, for the benefit of selling agents selling such Class 1 or Class 1a Units. The initial service fee, which is amortized monthly at an annual rate of up to two percent (2.0%) of the average daily NAV of Class 1 or Class 1a of such Series, is prepaid to the Managing Owner by each Series, and paid to the selling agents by the Managing Owner in the month following sale; provided, however, that investors who redeem all or a portion of their Class 1 or Class 1a Units of any Series during the first twelve (12) months following the effective date of their purchase are subject to a redemption fee of up to two percent (2.0%) of the purchase price at which such investor redeemed to reimburse the Managing Owner for the then-unamortized balance of the prepaid initial service fee. Investors who have purchased Class 1 or Class 1a Units of Frontier Balanced Fund, Frontier Heritage Fund, Frontier Select Fund, and Frontier Global Fund are charged a service fee of up to three percent (3.0%) annually of the NAV (of the purchase price, in case of the initial service fee) of each Unit purchased, for the benefit of selling agents selling such Class 1 or Class 1a Units. The initial service fee, which is amortized monthly at an annual rate of up to three percent (3.0%) of the average daily NAV of Class 1 or Class 1a of such Series, is prepaid to the Managing Owner by each Series, and paid to the selling agents by the Managing Owner in the month following sale. With respect to Class 2 and Class 2a Units of any Series, the Managing Owner pays an ongoing service fee to selling agents of up to one half percent (0.5%) annually of the NAV of each Class 2 or Class 2a Unit (of which 0.25% will be charged to Limited Owners holding Class 2 Units of the Frontier Diversified Fund, and Frontier Masters Fund or Class 2a Units of the Frontier Long/Short Commodity Fund sold until such Class 2 or Class 2a Units which are subject to the fee limitation are reclassified as Class 3 or Class 3a Units of the applicable Series. Class 1AP was created as a sub-class of Class 1 and it has been presented separately because the fees applicable to it are different from those applicable to Class 1. Currently the service fee is not charged to Class 1AP investors. The Managing Owner may also pay selling agents certain additional fees and expenses for administrative and other services rendered and expenses incurred by such Selling agents; and ● all payments made to selling agents who are members of the Financial Industry Regulatory Authority, Inc. (“FINRA”) and their associated persons that constitute underwriting compensation will be subject to the limitations set forth in Rule 2310(b)(4)(B)(ii) (formerly Rule 2810(b)(4)(B)(ii)) of the Conduct Rules of FINRA (“Rule 2310”). An investor’s Class 1 Units or Class 2 Units of any Series, or Class 2a Units of the Frontier Long/Short Commodity Fund or Frontier Balanced Fund will be classified as Class 3 or Class 3a Units of such Series, as applicable, when the Managing Owner determines that the fee limitation set forth in Rule 2310 with respect to such Units has been reached or will be reached. The service fee limit applicable to each unit sold is reached upon the earlier of when (i) the aggregate initial and ongoing service fees received by the selling agent with respect to such unit equals 9% of the purchase price of such unit or (ii) the aggregate underwriting compensation (determined in accordance with FINRA Rule 2310) paid in respect of such unit totals 10% of the purchase price of such unit. No service fees are paid with respect to Class 3 or Class 3a Units. Units of any Class in a Series may be redeemed, in whole or in part, on a daily basis, at the then current NAV per Unit for such Series on the day of the week after the date the Managing Owner is in receipt of a redemption request for at least one (1) business day to be received by the Managing Owner prior to 4:00 PM in New York. The assets of any particular Series include only those funds and other assets that are paid to, held by or distributed to the Trust, with respect to the Series, on account of and for the benefit of that Series. Under the “Inter-Series Limitation on Liability” expressly provided for under Section 3804(a) of the Trust Act, separate and distinct records of the cash and equivalents, although pooled for maximizing returns, are maintained in the books and records of each Series. As of December 31, 2021, the Trust, with respect to the Frontier Diversified Fund and Frontier Masters Fund, separates Units into two separate Classes—Class 2 and Class 3. The Trust, with respect to the Frontier Select Fund, Frontier Global Fund and Frontier Heritage Fund separates Units into a maximum of three separate Classes—Class 1, Class 2 and Class 1AP. The Trust, with respect to the Frontier Balanced Fund separates Units into a maximum of five separate Classes—Class 1, Class 1AP, Class 2, Class 2A and Class 3A. The Trust, with respect to the Frontier Long/Short Commodity Fund separates Units into a maximum of five separate Classes—Class 1A, Class 2A, Class 2, Class 3A and Class 3. Frontier Masters Fund Class 1 was closed as of April 1, 2021, and Frontier Diversified Fund Class 1 was closed as of July 21, 2021. Between April 15, 2016 and May 10, 2017, a portion of the interests in Frontier Trading Company I, LLC and all of the interests in Frontier Trading Company VII, LLC, Frontier Trading Company XV, LLC, and Frontier Trading Company XXIII LLC held by Frontier Diversified Fund, Frontier Masters Fund, Frontier Select Fund, Frontier Balanced Fund and Frontier Long/Short Commodity Fund were exchanged for equivalent interests in the Galaxy Plus Managed Account Platform (“Galaxy Plus”) which is an unaffiliated, third-party managed account platform. The assets of Frontier Trading Company I, LLC, which included exposure to Quantmetrics Capital Management LLP’s Multi-Strategy Program, Quantitative Investment Management, LLC’s Quantitative Global Program, Quest Partners LLC’s Quest Tracker Index Program, Chesapeake Capital Management, LLC’s Diversified Program, and Doherty Advisors LLC’s Relative Value Moderate Program, the assets of Frontier Trading Company VII, LLC, which included exposure to Emil van Essen LLC’s Multi-Strategy Program, Red Oak Commodity Advisors, Inc.’s Fundamental Diversified Program, Rosetta Capital Management, LLC’s Rosetta Trading Program, and Landmark Trading Company’s Landmark Program, the assets of Frontier Trading Company XV, LLC, which included exposure to Transtrend B.V.’s TT Enhanced Risk (USD) Program, and the assets of Frontier Trading Company XXIII, LLC which included exposure to Fort L.P.’s Global Contrarian Program have been transferred to individual Delaware limited liability companies (“Master Funds”) in Galaxy Plus. Each Master Fund is sponsored and operated by Gemini Alternative Funds, LLC (“Sponsor”). The Sponsor has contracted with the Trading Advisors to manage the portfolios of the Master Funds pursuant to the advisors’ respective program. For those Series that invest in Galaxy Plus, approximately 30-70% of those Series assets are used to support the margin requirements of the Master Funds. The remaining assets of the Series are split between investments in Trading Companies and a pooled cash management account that invests primarily in U.S. Treasury securities. All the funds are invested in Galaxy Plus entities. Each of the Series has invested a portion of its assets in several different Trading Companies or Galaxy Plus entities and one or more Trading Advisors may manage the assets invested in such Trading Companies or Galaxy Plus entities. The Trust has entered into agreements, which provide for the indemnification of futures clearing brokers, currency trading companies, and commodity trading advisers, among others, against losses, costs, claims and liabilities arising from the performance of their individual obligations under such agreements, except for gross negligence, bad faith or willful misconduct.
Frontier Funds [Member]
Organization and Purpose [Line Items]
Organization and Purpose	1. Organization and Purpose Frontier Funds, which is referred to in this report as the “Trust”, was formed on August 8, 2003, as a Delaware statutory trust and is set to expire on December 31, 2053. The Trust is a multi-advisor commodity pool, as described in CFTC Regulation § 4.10(d)(2). The Trust has authority to issue separate Series of Units pursuant to the requirements of the Trust Act. The assets of each Series are valued and accounted for separately from the assets of other Series. The Trust is not registered as an investment company under the Investment Company Act. It is managed by the Managing Owner. Purchasers of Units are Limited Owners of the Trust with respect to beneficial interests of the Series’ Units purchased. The Trust Act provides that, except as otherwise provided in the second amended and restated declaration of trust and trust agreement dated December 9, 2013, as further amended, by and among the Managing Owner, Wilmington Trust Company as trustee and the unitholders, as amended from time to time (the “Trust Agreement”), unitholders of the Trust will have the same limitation of liability as do stockholders of private corporations organized under the General Corporation Law of the State of Delaware. The Trust Agreement confers substantially the same limited liability, and contains the same limited exceptions thereto, as would a limited partnership agreement for a Delaware limited partnership engaged in like transactions as the Trust. In addition, pursuant to the Trust Agreement, the Managing Owner of the Trust is liable for obligations of a Series in excess of that Series’ assets. Limited Owners do not have any such liability. The Managing Owner will make contributions to the Series of the Trust necessary to maintain at least a 1% interest in the aggregate capital, profits and losses of all Series. The Trust has been organized to pool investor funds for the purpose of trading in the U.S. and international markets for currencies, interest rates, stock indices, agricultural and energy products, precious and base metals and other commodities. The Trust may also engage in futures contracts, forwards, option contracts and other interest in derivative instruments, including swap contracts. The Trust has seven (7) separate and distinct Series of Units issued and outstanding: Frontier Diversified Fund, Frontier Masters Fund, Frontier Long/Short Commodity Fund, Frontier Balanced Fund, Frontier Select Fund, Frontier Global Fund, and Frontier Heritage Fund. The Trust financial statements are comprised of unitized Series which are consolidated into the Trust financial statements. However, the consolidated Trust does not issue units. The Trust, with respect to each Series: ● engages in the speculative trading of a diversified portfolio of futures, forwards (including interbank foreign currencies), options contracts and other derivative instruments (including swap contracts), and may, from time to time, engage in cash and spot transactions. ● allocates funds to a limited liability trading company or companies (“Trading Company” or “Trading Companies”) and Galaxy Plus entities (“Galaxy Plus”). Except as otherwise described in these notes, each Trading Company and Galaxy Plus entity has one-year renewable contracts with its own independent commodity trading advisor (s), or each, a Trading Advisor, that will manage all or a portion of such Trading Company’s and Galaxy Plus assets and make the trading decisions for the assets of each Series vested in such Trading Company and Galaxy Plus entity. Each Trading Company and Galaxy Plus entity will segregate its assets from any other Trading Company and Galaxy Plus entity. ● maintains separate, distinct records for each Series, and accounts for the assets of each Series separately from the other Series. ● calculates the Net Asset Value (“NAV”) of its Units for each Series separately from the other Series. ● has an investment objective of increasing the value of each Series’ Units over the long term (capital appreciation), while managing risk and volatility; further, to offer exposure to the investment programs of individual Trading Advisors and to specific instruments. ● maintains each Series of Units in three to seven sub-classes—Class 1, Class 1AP, Class 1a, Class 2, Class 2a, Class 3, and Class 3a. Investors who have purchased Class 1 or Class 1a Units of Frontier Diversified Fund, Frontier Masters Fund, and Frontier Long/Short Commodity Fund are charged a service fee of up to two percent (2.0%) annually of the NAV (of the purchase price, in case of the initial service fee) of each Unit purchased, for the benefit of selling agents selling such Class 1 or Class 1a Units. The initial service fee, which is amortized monthly at an annual rate of up to two percent (2.0%) of the average daily NAV of Class 1 or Class 1a of such Series, is prepaid to the Managing Owner by each Series, and paid to the selling agents by the Managing Owner in the month following sale; provided, however, that investors who redeem all or a portion of their Class 1 or Class 1a Units of any Series during the first twelve(12) months following the effective date of their purchase are subject to a redemption fee of up to two percent (2.0%) of the purchase price at which such investor redeemed to reimburse the Managing Owner for the then-unamortized balance of the prepaid initial service fee. Investors who have purchased Class 1 or Class 1a Units of Frontier Balanced Fund, Frontier Heritage Fund, Frontier Select Fund, and Frontier Global Fund are charged a service fee of up to three percent (3.0%) annually of the NAV (of the purchase price, in case of the initial service fee) of each Unit purchased, for the benefit of selling agents selling such Class 1 or Class 1a Units. The initial service fee, which is amortized monthly at an annual rate of up to three percent (3.0%) of the average daily NAV of Class 1 or Class 1a of such Series, is prepaid to the Managing Owner by each Series, and paid to the selling agents by the Managing Owner in the month following sale. With respect to Class 2 and Class 2a Units of any Series, the Managing Owner pays an ongoing service fee to selling agents of up to one half percent (0.5%) annually of the NAV of each Class 2 or Class 2a Unit (of which 0.25% will be charged to Limited Owners holding Class 2 Units of the Frontier Diversified Fund, and Frontier Masters Fund or Class 2a Units of the Frontier Long/Short Commodity Fund sold until such Class 2 or Class 2a Units which are subject to the fee limitation are reclassified as Class 3 or Class 3a Units of the applicable Series. Class 1AP was created as a sub-class of Class 1 and it has been presented separately because the fees applicable to it are different from those applicable to Class 1. Currently the service fee is not charged to Class 1AP investors. The Managing Owner may also pay selling agents certain additional fees and expenses for administrative and other services rendered and expenses incurred by such selling agents; and all payments made to selling agents who are members of the Financial Industry Regulatory Authority, Inc. (“FINRA”) and their associated persons that constitute underwriting compensation will be subject to the limitations set forth in Rule 2310(b)(4)(B)(ii) (formerly Rule 2810(b)(4)(B)(ii)) of the Conduct Rules of FINRA (“Rule 2310”). An investor’s Class 1 Units or Class 2 Units of any Series, or Class 1a Units or Class 2a Units of the Frontier Long/Short Commodity Fund or Frontier Balanced Fund will be classified as Class 3 or Class 3a Units of such Series, as applicable, when the Managing Owner determines that the fee limitation set forth in Rule 2310 with respect to such Units has been reached or will be reached. The service fee limit applicable to each unit sold is reached upon the earlier of when (i) the aggregate initial and ongoing service fees received by the selling agent with respect to such unit equals 9% of the purchase price of such unit or (ii) the aggregate underwriting compensation (determined in accordance with FINRA Rule 2310) paid in respect of such unit totals 10% of the purchase price of such unit. No service fees are paid with respect to Class 3 or Class 3a Units. Units of any Class in a Series may be redeemed, in whole or in part, on a daily basis, at the then current NAV per Unit for such Series on the day of the week after the date the Managing Owner is in receipt of a redemption request for at least one (1) business day to be received by the Managing Owner prior to 4:00 PM in New York. Frontier Masters Fund Class 1 was closed as of April 1, 2021 and Frontier Diversified Fund Class 1 was closed as of July 21, 2021. The assets of any particular Series include only those funds and other assets that are paid to, held by or distributed to the Trust on account of and for the benefit of that Series. Under the “Inter-Series Limitation on Liability” expressly provided for under Section 3804(a) of the Trust Act, separate and distinct records of the cash and equivalents, although pooled for maximizing returns, is maintained in the books and records of each Series. As of December 31, 2021, the Trust, with respect to the Frontier Diversified Fund and Frontier Masters Fund, separates Units into two separate Classes—Class 2 and Class 3. The Trust, with respect to the Frontier Select Fund, Frontier Global Fund and Frontier Heritage Fund separates Units into a maximum of three separate Classes—Class 1, Class 2 and Class 1AP. The Trust, with respect to the Frontier Balanced Fund separates Units into a maximum of five separate Classes—Class 1, Class 1AP, Class 2, Class 2A and Class 3A. The Trust, with respect to the Frontier Long/Short Commodity Fund separates Units into a maximum of five separate Classes—Class 1A, Class 2A, Class 2, Class 3A and Class 3. Between April 15, 2016 and May 10, 2017, a portion of the interests in Frontier Trading Company I, LLC and all of the interests in Frontier Trading Company VII, LLC, Frontier Trading Company XV, LLC, and Frontier Trading Company XXIII LLC held by Frontier Diversified Fund, Frontier Masters Fund, Frontier Select Fund, Frontier Balanced Fund and Frontier Long/Short Commodity Fund were exchanged for equivalent interests in the Galaxy Plus Managed Account Platform (“Galaxy Plus”) which is an unaffiliated, third-party managed account platform. The assets of Frontier Trading Company I, LLC, which included exposure to Quantmetrics Capital Management LLP’s Multi-Strategy Program, Quantitative Investment Management, LLC’s Quantitative Global Program, Quest Partners LLC’s Quest Tracker Index Program, Chesapeake Capital Management, LLC’s Diversified Program, and Doherty Advisors LLC’s Relative Value Moderate Program, the assets of Frontier Trading Company VII, LLC, which included exposure to Emil van Essen LLC’s Multi-Strategy Program, Red Oak Commodity Advisors, Inc.’s Fundamental Diversified Program, Rosetta Capital Management, LLC’s Rosetta Trading Program, and Landmark Trading Company’s Landmark Program, the assets of Frontier Trading Company XV, LLC, which included exposure to Transtrend B.V.’s TT Enhanced Risk (USD) Program, and the assets of Frontier Trading Company XXIII, LLC which included exposure to Fort L.P.’s Global Contrarian Program have been transferred to individual Delaware limited liability companies (“Master Funds”) in Galaxy Plus. Each Master Fund is sponsored and operated by New Hyde Park Alternative Funds, LLC (“Sponsor”). The Sponsor has contracted with the Trading Advisors to manage the portfolios of the Master Funds pursuant to the advisors’ respective program. For those Series that invest in Galaxy Plus, approximately 30-70% of those Series assets are used to support the margin requirements of the Master Funds. The remaining assets of the Series are split between investments in Trading Companies and a pooled cash management account that invests primarily in U.S. Treasury securities. For those Series that do not invest in Galaxy Plus, their assets are split between investments in Trading Companies and investments in the pooled cash management account. Each of the Series has invested a portion of its assets in several different Trading Companies or Galaxy Plus entities and one or more Trading Advisors may manage the assets invested in such Trading Companies or Galaxy Plus entities. The Trust has entered into agreements, which provide for the indemnification of futures clearing brokers, currency trading companies, and commodity trading advisers, among others, against losses, costs, claims and liabilities arising from the performance of their individual obligations under such agreements, except for gross negligence, bad faith or willful misconduct.

Significant Accounting Policies

Significant Accounting Policies	12 Months Ended
	Dec. 31, 2021
The Series of Frontier Funds [Member]
Significant Accounting Policies [Line Items]
Significant Accounting Policies	2. Significant Accounting Policies The following are the significant accounting policies of the Series of the Trust. Basis of Presentation Consolidation Galaxy Plus entities are co-mingled investment vehicles. In addition to the Series, there are other non-affiliated investors in Galaxy Plus. Subscriptions and redemptions by these non-affiliated investors will have a direct impact on the Series ownership percentage in Galaxy Plus. It is expected that ownership percentage will fluctuate (sometimes significantly) on a week-by-week basis which could also result in frequent changes in the consolidating Series. Such fluctuations make consolidating the financial statements of the Galaxy Plus entities both impractical and misleading. Non-consolidation of these Galaxy Plus entities presents a more useful financial statement for the readers. As such, management has decided that presenting Galaxy Plus entities on a non-consolidated basis as investments in other investments companies (a “fund of funds” approach) is appropriate and preferable to the users of these financial statements. Refer to Note 5 for additional disclosures related to these private investment companies. As of December 31, 2021, and 2020, the consolidated statements of financial condition of Frontier Balanced Fund included the assets and liabilities of its wholly owned interests in Frontier Trading Company I, LLC. For the year ended December 31, 2021, 2020 and 2019 the consolidated statements of operations of Frontier Balanced Fund included the earnings of its wholly owned interest in Frontier Trading Company I, LLC and Frontier Trading Company XXXIV, LLC. As of December 31, 2021, and 2020, the consolidated statements of financial condition of Frontier Long/Short Commodity Fund included the assets and liabilities of its wholly owned Trading Company, Frontier Trading Company XXXVII, LLC. For the years ended December 31, 2021, 2020 and 2019, the consolidated statements of operations of Frontier Long/Short Commodity Fund included the earnings of its wholly owned Trading Company listed above. As of December 31, 2021, and 2020, the consolidated statements of financial condition of Frontier Diversified Fund included the assets and liabilities of its wholly owned Frontier Trading Company XXXV, LLC. For the years ended December 31, 2021, 2020, and 2019 the consolidated statements of operations of Frontier Diversified Fund included the earnings of its wholly owned Trading Company listed above. As of and for the years ended December 31, 2021, 2020, and 2019, the consolidated statements of financial condition and statement of operations of Frontier Heritage Fund included the assets and liabilities, and earnings, respectively, of its majority owned Trading Company, Frontier Trading Company XXXIX, LLC. For the year ended December 31, 2021, 2020 and 2019, the consolidated statements of operations of Frontier Select Fund included the earnings of its majority owned Trading Company. For the year ended December 31, 2019 and 2018, the consolidated statements of operations of Frontier Global Fund include the earnings of its majority owned Trading Company, Frontier Trading Company II, LLC from January 1, 2017 through December 14, 2017. As of and for the years ended December 31, 2019, 2018 and 2017, Frontier Master Fund did not have a majority interest in any Trading Company. Each of the Series has invested in Frontier Trading Company XXXVIII, LLC on the same basis as its ownership in the cash pool. Frontier Trading Company XXXVIII, LLC’s assets, liabilities and earnings are allocated to all of the Series of the Trust based on their proportionate share of the cash pool. Each Series investment in the Frontier Trading Company XXXVIII, LLC is listed under Investments in unconsolidated trading companies, at fair value on the Statements of Financial Condition. Use of Estimates— Cash and Cash Equivalents— Interest Income— U.S. Treasury Securities— Fair Value Measurements and Disclosures (“ Receivable from Futures Commission Merchants Investment Transactions— Balance Sheet (“ASC 210” Balance Sheet (Topic 210 Any change in net unrealized gain or loss from the preceding period is reported in the statements of operations. Fair value of exchange-traded contracts is based upon exchange settlement prices. Fair value of non-exchange-traded contracts is based on third party quoted dealer values on the interbank market. For U.S. Treasury securities, interest is recognized in the period earned and the instruments are marked-to-market daily based on third party information. Transaction costs are recognized as incurred and reflected separately in the statements of operations. Purchase and Sales of Private Investment Companies Foreign Currency Transactions— Allocation of Earnings— Each Series allocates funds to an affiliated Trading Company, or Companies, of the Trust or unaffiliated Galaxy Plus entity. Each Trading Company allocates all of its daily trading gains or losses to the Series in proportion to each Series’ ownership trading level interest in the Trading Company, adjusted on a daily basis (except for Trading Advisors and other investments such as swaps that are directly allocated to a specific Series). Likewise, trading gains and losses earned and incurred by the Series through their investments in Galaxy Plus entities are allocated to those Series on a daily basis. The allocation of gains and losses in Galaxy Plus entities are based on each Series pro-rata shares of the trading level of that entity which is updated at the beginning of each month or more frequently if there is a subscription or redemption activity in the entity. The value of all open contracts and cash held at clearing brokers is similarly allocated to the Series in proportion to each Series’ funds allocated to the Trading Companies or Galaxy Plus entities. Investments and Swaps Income Taxes Income Taxes The 2018 through 2021 tax years generally remain subject to examination by U.S. federal and most state tax authorities. In the opinion of the Managing Owner, (i) the Trust, with respect to the Series, is treated as a partnership for federal income tax purposes and, assuming that at least 90% of the gross income of the Trust constitutes “qualifying income” within the meaning of Section 7704(d) of the Code, (ii) the Trust is not a publicly traded partnership treated as a corporation, and (iii) the discussion set forth in the Prospectus under the heading “U.S. Federal Income Tax Consequences” correctly summarizes the material federal income tax consequences as of the date of the Prospectus to potential U.S. Limited Owners of the purchase, ownership and disposition of Units of the Trust. Fees and Expenses Incentive Fee (rebate) Service Fees Each Series is charged service fees as outlined above. In some cases, amounts paid to selling agents might be less than the amount charged to the Series. When this occurs, the service fee is rebated back to the investor in the form of additional units. During 2019, 2020 and 2021, the Series were not allowed to issue additional units. The Managing Owner has determined that the purchase of additional units of the relevant Series will commence in 2022 when the Series are allowed to sell shares again. As such, the Managing Owner has calculated the amounts for additional units of the relevant series which will be purchased and classified such amounts as Subscriptions in advance for service fee rebates of $22,650, $393, $31,725, $369,341, $21,076, $158,810 and $69,814 for the Frontier Diversified, Long/Short Commodity, Masters, Balanced, Select, Global and Heritage Funds, respectively, as of December 31, 2021. These service fees are part of the offering costs of the Trust, with respect to the Series, which include registration and filing fees, legal and blue sky expenses, accounting and audit, printing, marketing support and other offering costs which are borne by the Managing Owner. With respect to the service fees, the initial service fee (for the first 12 months) relating to a purchase of Class 1 and Class 1a Units by an investor is prepaid by the Managing Owner to the relevant selling agent in the month following such purchase and is reimbursed for such payment by the Series monthly in arrears in an amount based upon a corresponding percentage of NAV, calculated daily. Consequently, the Managing Owner bears the risk of the downside and enjoys the benefit of the upside potential of any difference between the amount of the initial service fee prepaid by it and the amount of the reimbursement thereof, which may result from variations in NAV over the following 12 months. Frontier Masters Fund Class 1 was closed as of April 1, 2021, and Frontier Diversified Fund Class 1 was closed as of July 21, 2021. Pending Owner Additions— Owner redemptions payable— Recently Adopted Accounting Pronouncements— Subsequent Events—The Series, follows the provisions of ASC 855, Subsequent Events
Frontier Funds [Member]
Significant Accounting Policies [Line Items]
Significant Accounting Policies	2. Significant Accounting Policies The following are the significant accounting policies of the Trust. Basis of Presentation Consolidation Galaxy Plus entities are co-mingled investment vehicles. In addition to the Trust, there are other non-affiliated investors in Galaxy Plus. Subscriptions and redemptions by these non-affiliated investors will have a direct impact on the Trust ownership percentage in Galaxy Plus. It is expected that ownership percentage will fluctuate (sometimes significantly) on a week by week basis which could also result in frequent changes in the consolidating Series. Such fluctuations make consolidating the financial statements of the Galaxy Plus entities both impractical and misleading. Non-consolidation of these Galaxy Plus entities presents a more useful financial statement for the readers. As such, management has decided that presenting Galaxy Plus entities on a non-consolidated basis as investments in other investments companies (a “fund of funds” approach) is appropriate and preferable to the users of these financial statements. Refer to Note 5 for additional disclosures related to these private investment companies. Use of Estimates— Cash and Cash Equivalents— Interest Income— U.S. Treasury Securities— Fair Value Measurements and Disclosures (“ Receivable from Futures Commission Merchants Investment Transactions— Balance Sheet (“ASC 210” Balance Sheet (Topic 210 Any change in net unrealized gain or loss from the preceding period is reported in the consolidated statements of operations. Fair value of exchange-traded contracts is based upon exchange settlement prices. Fair value of non-exchange-traded contracts is based on third party quoted dealer values on the interbank market. For U.S. Treasury securities, interest was recognized in the period earned and the instruments were marked-to-market daily based on third party information. Transaction costs are recognized as incurred and reflected separately in the consolidated statements of operations. Purchase and Sales of Private Investment Companies Foreign Currency Transactions— Allocation of Earnings— Each Series allocates funds to an affiliated Trading Company, or Companies, of the Trust, or unaffiliated Galaxy Plus entity. Each Trading Company allocates all of its daily trading gains or losses to the Series in proportion to each Series’ ownership trading level interest in the Trading Company, adjusted on a daily basis (except for Trading Advisors and other investments such as swaps that are directly allocated to a specific series). Likewise, trading gains and losses earned and incurred by the Series through their investments in Galaxy Plus entities are allocated to those Series on a daily basis. The allocation of gains and losses in Galaxy Plus entities are based on each Series pro-rata shares of the trading level of that entity which is updated at the beginning of each month or more frequently if there is a subscription or redemption activity in the entity. The value of all open contracts and cash held at clearing brokers is similarly allocated to the Series in proportion to each Series’ funds allocated to the Trading Companies or Galaxy Plus entities. Investments and Swaps— Income Taxes Income Taxes The 2018 through 2021 tax years generally remain subject to examination by U.S. federal and most state tax authorities. In the opinion of the Managing Owner, (i) the Trust is treated as a partnership for Federal income tax purposes and, assuming that at least 90% of the gross income of the Trust constitutes “qualifying income” within the meaning of Section 7704(d) of the Code, (ii) the Trust is not a publicly traded partnership treated as a corporation, and (iii) the discussion set forth in the Prospectus under the heading “U.S. Federal Income Tax Consequences” correctly summarizes the material Federal income tax consequences as of the date of the Prospectus to potential U.S. Limited Owners of the purchase, ownership and disposition of Series Units of the Trust. Fees and Expenses— Incentive Fee (rebate)— Service Fees Each Series is charged service fees as outlined above. In some cases, amounts paid to selling agents might be less than the amount charged to the Series. When this occurs, the service fee is rebated back to the investor in the form of additional units. During 2021, 2020 and 2019, the Series were not allowed to issue additional units. The Managing Owner has determined that the purchase of additional units of the relevant Series will commence in 2022 when the Series are allowed to sell shares again. As such, the Managing Owner has calculated the amounts for additional units of the relevant series which will be purchased and classified such amounts as Subscriptions in advance for service fee rebates of $673,809 and $638,962 as of December 31, 2021 and December 31, 2020, respectiv These service fees are part of the offering costs of the Trust, which include registration and filing fees, legal and blue1 sky expenses, accounting and audit, printing, marketing support and other offering costs which are borne by the Managing Owner. With respect to the service fees, the initial service fee (for the first 12 months) relating to a purchase of Class 1 and Class 1a Units by an investor is prepaid by the Managing Owner to the relevant selling agent in the month following such purchase and is reimbursed for such payment by the Series monthly in arrears in an amount based upon a corresponding percentage of NAV, calculated daily. Consequently, the Managing Owner bears the risk of the downside and enjoys the benefit of the upside potential of any difference between the amount of the initial service fee prepaid by it and the amount of the reimbursement thereof, which may result from variations in NAV over the following 12 months. Pending Owner Additions— Owner redemptions payable— Recently Adopted Accounting Pronouncements— Subsequent Events Subsequent Events

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2021
The Series of Frontier Funds [Member]
Fair Value Measurements [Line Items]
Fair Value Measurements	3. Fair Value Measurements In connection with the valuation of investments the Series apply ASC 820. ASC 820 provides clarification that when a quoted price in an active market for the identical asset or liability is not available, a reporting entity is required to measure fair value using certain techniques. ASC 820 also clarifies that when estimating the fair value of an asset or liability, a reporting entity is not required to include a separate input or adjustment to other inputs relating to the existence of a restriction that prevents the transfer of an asset or liability. ASC 820 also clarifies that both a quoted price in an active market for the identical asset or liability at the measurement date and the quoted price for the identical asset or liability when traded as an asset in an active market when no adjustments to the quoted price of the asset are required are Level 1 fair value measurements. Level 1 Inputs Unadjusted quoted prices in active markets for identical financial assets that the reporting entity has the ability to access at the measurement date. Level 2 Inputs Inputs other than quoted prices included in Level 1 that are observable for the financial assets or liabilities, either directly or indirectly. These might include quoted prices for similar financial assets in active markets, quoted prices for identical or similar financial assets in markets that are not active, inputs other than quoted prices that are observable for the financial assets or inputs that are derived principally from or corroborated by market data by correlation or other means. Level 3 Inputs Unobservable inputs for determining the fair value of financial assets that reflect an entity’s own assumptions about the assumptions that market participants would use in pricing the financial asset. The Trust, with respect to the Series, uses the following methodologies to value instruments within its financial asset portfolio at fair value: Trading Securities. Swap Contracts. Swap contracts are reported at fair value upon daily reports from the counterparty. In addition, a third party takes the inputs from the counterparty, makes certain adjustments, and runs it through their pricing model to come up with their daily price. The fair value measurements of the swap contracts are valued using unadjusted inputs that were not internally developed. The Managing Owner reviews and compares approves current day pricing of the CTA positions, as received from the counterparty which includes intra-day volatility and volume and daily index performance, as well as from the third party. Differences in prices exceeding 5% are investigated. Unexplainable differences are escalated to the Managing Owner’s Valuation Committee for evaluation and resolution. Swap contracts are reported at fair value using Level 3 inputs. For the year ended December 31, 2021, the Trust did not have any total return swap investments. Investment in Unconsolidated Trading Companies. Investments in Private Investment Companies The following table summarizes investment in each Series measured at fair value on a recurring basis as of December 31, 2021 and December 31, 2020 segregated by the level of valuation inputs within the fair value hierarchy utilized to measure fair value. December 31, 2021 Practical Level 1 Level 2 Level 3 Total Frontier Diversified Fund Investment in Unconsolidated Trading Companies $ 30,788 $ - $ - $ - $ 30,788 U.S. Treasury Securities - 33,274 - - 33,274 Frontier Masters Fund Investment in Unconsolidated Trading Companies 14,270 - - - 14,270 U.S. Treasury Securities - 15,422 - - 15,422 Frontier Long/Short Commodity Fund Investment in Unconsolidated Trading Companies 7,541 - - - 7,541 U.S. Treasury Securities - 8,148 - - 8,148 Frontier Balanced Fund Investment in Unconsolidated Trading Companies 34,977 - - - 34,977 Open Trade Equity (Deficit) - 14,836 - - 14,836 U.S. Treasury Securities - 37,801 - - 37,801 Frontier Select Fund Investment in Unconsolidated Trading Companies 9,514 - - - 9,514 U.S. Treasury Securities - 10,282 - - 10,282 Frontier Global Fund Investment in Unconsolidated Trading Companies 23,818 - - - 23,818 U.S. Treasury Securities - 25,740 - - 25,740 Frontier Heritage Fund Investment in Unconsolidated Trading Companies 9,087 - - - 9,087 U.S. Treasury Securities - 9,820 - - 9,820 December 31, 2020 Practical Level 1 Level 2 Level 3 Total Frontier Diversified Fund Investment in Unconsolidated Trading Companies $ 16,669 $ - $ - $ - $ 16,669 U.S. Treasury Securities - 427,393 - - 427,393 Frontier Masters Fund Investment in Unconsolidated Trading Companies 907 - - - 907 U.S. Treasury Securities - 23,245 - - 23,245 Frontier Long/Short Commodity Fund Investment in Unconsolidated Trading Companies 17,736 - - - 17,736 U.S. Treasury Securities - 454,738 - - 454,738 Frontier Balanced Fund Investment in Unconsolidated Trading Companies 49,755 - - - 49,755 Open Trade Equity (Deficit) - 100,440 - - 100,440 U.S. Treasury Securities - 1,275,641 - - 1,275,641 Frontier Global Fund Investment in Unconsolidated Trading Companies 1,083 - - - 1,083 U.S. Treasury Securities - 27,742 - - 27,742 Frontier Heritage Fund Investment in Unconsolidated Trading Companies 2,880 - - - 2,880 U.S. Treasury Securities - 73,847 - - 73,847 The changes in Level 3 assets measured at fair value on a recurring basis are summarized in the following tables. Swap contract asset gains and losses included in earnings are classified in “realized and unrealized gain (loss) on investments – net unrealized gain/(loss) on swap contracts” on the statements of operations. Investment in unconsolidated trading company asset gains and losses (realized/unrealized) included in earnings are classified in “Change in fair value of investments in unconsolidated trading companies.” During the year ended December 31, 2021 and 2020, all identified Level 3 assets were components of the Frontier Diversified Fund, Frontier Long/Short Commodity Fund, Frontier Balanced Fund, Frontier Select Fund, and Frontier Heritage Fund. During the year ended December 31, 2020, the entire investments in the swaps were sold. 2020 For the Year Ended December 31, 2020 Swaps Frontier Frontier Long/Short Commodity Fund Balance of recurring Level 3 assets as of January 1, 2020 $ 11,944,753 $ 362,521 Total gains or losses (realized/unrealized): Included in earnings-realized (2,448,166 ) 188,100 Included in earnings-unrealized (3,088,917 ) 44,277 Proceeds from collateral reduction (6,176,555 ) (115,000 ) Sale of investments (7,586,366 ) (594,898 ) Purchase of investments 7,355,251 115,000 Change in ownership allocation - - Transfers in and/or out of Level 3 - - Balance of recurring Level 3 assets as of December 31, 2020 $ - $ - Frontier Frontier Balance of recurring Level 3 assets as of January 1, 2020 $ 6,384,583 $ 2,888,009 Total gains or losses (realized/unrealized): Included in earnings-realized (446,306 ) (97,745 ) Included in earnings-unrealized (1,537,399 ) 197,829 Proceeds from collateral reduction (4,000,000 ) (2,474,937 ) Sale of investments (4,870,025 ) (1,491,965 ) Purchase of investments 4,469,147 978,809 Change in ownership allocation - - Transfers in and/or out of Level 3 - - Balance of recurring Level 3 assets as of December 31, 2020 $ - $ - Investments in Unconsolidated Trading Companies: Frontier Select Fund Balance of recurring Level 3 assets as of January 1, 2020 $ 479,024 Change in fair value of investments in unconsolidated trading companies 95,915 Proceeds from sales of investments of unconsolidated trading companies (574,939 ) Purchases of investments of unconsolidated trading companies - Change in ownership allocation - Transfers in and/or out of Level 3 - Balance of recurring Level 3 assets as of December 31, 2020 $ - The Series of the Trust assess the levels of the investments at each measurement date, and transfers between levels are recognized on the actual date of the event or change in circumstances that caused the transfer in accordance with the Series’ accounting policy regarding the recognition of transfers between levels of the fair value hierarchy. During the years ended December 31, 2020, the Trust did not transfer any assets between Levels 1, 2 or 3. The amounts reflected in the change in ownership allocation result from changes in ownership in the underlying Trading Companies at the Series level, which have resulted in changes in consolidation or de-consolidation by the Series. The ownership in the Trading Companies is accounted for under the equity method, which approximates fair value. The Frontier Heritage Fund and the Frontier Select Fund jointly owned the Frontier Brevan Howard swap. The Frontier Heritage Fund owned the majority interest in the Frontier Brevan Howard swap. The Frontier Select Fund (through its investment in an unconsolidated trading company) and Frontier Heritage Fund Brevan Howard swap investments were liquidated on May 30, 2020 and Frontier Balanced Fund, Frontier Long/Short Commodity Fund, Frontier Diversified Fund TRS swap investments were liquidated on December 21, 2020. Frontier Frontier Long/Short Commodity Fund Frontier Frontier Swap Contracts $ (1,537,399 ) $ 44,277 $ (3,088,917 ) $ 197,829 Frontier Investments in Unconsolidated Trading Companies $ (91,989 )
Frontier Funds [Member]
Fair Value Measurements [Line Items]
Fair Value Measurements	3. Fair Value Measurements In connection with the valuation of investments the Trust applies ASC 820, Fair Value Measurement (“ASC 820”) Level 1 Inputs Unadjusted quoted prices in active markets for identical financial assets that the reporting entity has the ability to access at the measurement date. Level 2 Inputs Inputs other than quoted prices included in Level 1 that are observable for the financial assets or liabilities, either directly or indirectly. These might include quoted prices for similar financial assets in active markets, quoted prices for identical or similar financial assets in markets that are not active, inputs other than quoted prices that are observable for the financial assets or inputs that are derived principally from or corroborated by market data by correlation or other means. Level 3 Inputs Unobservable inputs for determining the fair value of financial assets that reflect an entity’s own assumptions about the assumptions that market participants would use in pricing the financial asset. The Trust uses the following methodologies to value instruments within its financial asset portfolio at fair value: Trading Securities. Swap Contracts. Swap contracts are reported at fair value upon daily reports from the counterparty. In addition, a third party takes the inputs from the counterparty, makes certain adjustments, and runs it through their pricing model to come up with their daily price. The fair value measurements of the swap contracts are valued using unadjusted inputs that were not internally developed. The Managing Owner reviews and compares approved current day pricing of the CTA positions, as received from the counterparty which includes intra-day volatility and volume and daily index performance, as well as from the third party. Differences in prices exceeding 5% are investigated. Unexplainable differences are escalated to the Managing Owner’s Valuation Committee for evaluation and resolution. The Swap Contracts are reported at fair value using Level 3 inputs. The Frontier Select Fund (through its investment in an unconsolidated trading company) and Frontier Heritage Fund Brevan Howard swap investments were liquidated on May 30, 2020 and Frontier Balanced Fund, Frontier Long/Short Commodity Fund, Frontier Diversified Fund TRS swap investments were liquidated on December 21, 2020. Investments in Private Investment Companies The following table summarizes the instruments that comprise the Trust’s financial asset portfolio, in aggregate, measured at fair value on a recurring basis as of December 31, 2021 and 2020, segregated by the level of valuation inputs within the fair value hierarchy utilized to measure fair value: December 31, 2021 Level 1 Inputs Level 2 Inputs Level 3 Inputs Fair Value Open Trade Equity (Deficit) $ 14,836 $ - $ - $ 14,836 U.S. Treasury Securities 140,487 - - 140,487 December 31, 2020 Level 1 Inputs Level 2 Inputs Level 3 Inputs Fair Value Open Trade Equity (Deficit) $ 100,440 $ - $ - $ 100,440 U.S. Treasury Securities 2,282,606 - - 2,282,606 The changes in Level 3 assets measured at fair value on a recurring basis are summarized in the following tables. Swap contract asset gains and losses (realized/unrealized) included in earnings are classified in “realized and unrealized gain (loss) on investments – net unrealized gain/(loss) on swap contracts” on the statements of operations. Swaps For the Balance of recurring Level 3 assets as of January 1, 2020 $ 21,579,865 Total gains or losses (realized/unrealized): Included in earnings-realized (2,896,106 ) Included in earnings-unrealized (4,384,210 ) Proceeds from collateral reduction (12,674,502 ) Purchase of investments 12,918,207 Sale of investments (14,543,254 ) Transfers in and/or out of Level 3 - Balance of recurring Level 3 assets as of December 31, 2020 $ - The Trust assesses the levels of the investments at each measurement date, and transfers between levels are recognized on the actual date of the event or change in circumstances that caused the transfer in accordance with the Trust’s accounting policy regarding the recognition of transfers between levels of the fair value hierarchy. During the years ended December 31, 2021 and 2020, the Trust did not transfer any assets between Levels 1, 2 and 3. The total change in unrealized appreciation (depreciation) included in the statements of operations attributable to level 3 investments still held at December 31, 2020: Swaps ($4,384,210). There were no swaps held at December 31, 2020.

Swap Contracts

Swap Contracts	12 Months Ended
	Dec. 31, 2021
The Series of Frontier Funds [Member]
Swap Contracts [Line Items]
Swap Contracts	4. Swap Contracts In addition to authorizing Trading Advisors to manage pre-determined investment levels of futures, option on futures and forward contracts, certain Series of the Trust will strategically invest a portion or all of their assets in total return swaps, selected at the direction of the Managing Owner. Total return swaps are privately negotiated contracts designed to provide investment returns linked to those produced by one or more investment products or indices. In a typical total return swap, two parties agree to exchange the returns (or differentials in rates of return) earned or realized on one or more particular predetermined investments or instruments. The gross returns to be exchanged or “swapped” between the parties are calculated with respect to a “notional amount” (i.e., the amount or value of the underlying asset used in computing the particular interest rate, return, or other amount to be exchanged) in a particular investment, or in a “basket” of securities. Each Series’ investment in swaps will likely differ substantially over time due to cash flows, portfolio management decisions and market movements. The swaps serve to diversify the investment holdings of each Series and to provide access to programs and advisors that would not be otherwise available to the Series, and are not used for hedging purposes. The Managing Owner follows a procedure in selecting well-established financial institutions which the Managing Owner, in its sole discretion, considers to be reputable, reliable, financially responsible and well established to act as swap counterparties. The procedure includes due diligence review of documentation on all new and existing financial institution counterparties prior to initiation of the relationship, and quarterly ongoing review during the relationship, to ensure that counterparties meet the Managing Owner’s minimum credit requirements, the counterparty average rating being no less than an investment grade rating as defined by the rating agencies. As of December 31, 2021, none of the Trust’s assets were deposited with over-the-counter counterparties in order to initiate and maintain swaps and is recorded as collateral within the swap fair value within the Statements of Financial Condition. The cash held with the counterparty is not restricted. The Series may strategically invest assets in one or more swaps linked to certain underlying investments or indices at the direction of the Managing Owner. The Trading Company in which the assets of these Series will be invested will not own any of the investments or indices referenced by any swap entered into by these Series. In addition, neither the swap counterparty to the Trading Company of these Series nor any advisor referenced by any such swap is a Trading Advisor to these Series. To help to reduce counterparty risk on the Series, the Managing Owner has the right to reduce the Series’ exposure and remove cash from the Series’ total return swaps with Deutsche Bank AG. This cash holding shall be in excess of $250,000 and may not exceed 40% of the index exposure in total. Index exposure is defined as the total notional amount plus any profit. The Series are charged interest on this cash holding and any amount removed will be offset against the final settlement value of the swap. The Frontier Select Fund (through its investment in an unconsolidated trading company) and Frontier Heritage Fund Brevan Howard swap investments were liquidated on May 30, 2020 and Frontier Balanced Fund, Frontier Long/Short Commodity Fund, Frontier Diversified Fund TRS swap investments were liquidated on December 21, 2020. The Series have invested in the following swaps as of and for the year ended December 31, 2020: Frontier Balanced Fund Frontier Diversified Fund Frontier Long/Short Commodity Fund Frontier Heritage Fund Total Return Swap Total Return Swap Total Return Swap Total Return Swap Counterparty Deutsche Bank AG Deutsche Bank AG Deutsche Bank AG Deutsche Bank AG Realized Gain/(Loss) $ (2,448,166 ) $ (446,306 ) $ 188,100 $ (97,745 ) Change in Unrealized Gain/(Loss) $ (3,088,917 ) $ (1,537,399 ) $ 44,277 $ 197,829 Fair Value as of December 31, 2020 $ 0 $ 0 $ 0 $ 0 Advance on swap appreciation $ 0 $ 0 $ 0 $ 0
Frontier Funds [Member]
Swap Contracts [Line Items]
Swap Contracts	4. Swap Contracts In addition to authorizing Trading Advisors to manage pre-determined investment levels of futures and forward contracts, certain Series of the Trust will strategically invest a portion or all of their assets in total return swaps, selected at the direction of the Managing Owner. Total return swaps are privately negotiated contracts designed to provide investment returns linked to those produced by one or more investment products or indices. In a typical total return swap, two parties agree to exchange the returns (or differentials in rates of return) earned or realized on one or more particular predetermined investments or instruments. The gross returns to be exchanged or “swapped” between the parties are calculated with respect to a “notional amount” (i.e., the amount or value of the underlying asset used in computing the particular interest rate, return, or other amount to be exchanged) in a particular investment, or in a “basket” of securities. The Trust’s investment in swaps will likely differ substantially over time due to cash flows, portfolio management decisions and market movements. The swaps serve to diversify the investment holdings of the Trust and to provide access to programs and advisors that would not be otherwise available to the Trust and are not used for hedging purposes. The Managing Owner follows a procedure in selecting well-established financial institutions which the Managing Owner, in its sole discretion, considers to be reputable, reliable, financially responsible and well established to act as swap counterparties. The procedure includes due diligence review of documentation on all new and existing financial institution counterparties prior to initiation of the relationship, and quarterly ongoing review during the relationship, to ensure that counterparties meet the Managing Owner’s minimum credit requirements, the counterparty average rating being no less than an investment grade rating as defined by the rating agencies. As of December 31, 2020, All swaps were sold so that no Trust’s assets were deposited with over-the-counter counterparties. The Trust strategically invests assets in one or more swaps linked to certain underlying investments or indices at the direction of the Managing Owner. The Trading Company in which the assets of the Trust will be invested will not own any of the investments or indices referenced by any swap entered into by the Trust. In addition, neither the swap counterparty nor any advisor referenced by any such swap is a Trading Advisor to the Trust. To help to reduce counterparty risk on the Series, the Managing Owner has the right to reduce the Series’ exposure and remove cash from the Series’ total return swaps with Deutsche Bank AG. This cash holding shall be in excess of $250,000 and may not exceed 40% of the Index exposure in total. Index exposure is defined as the total notional amount plus any profit. The Series are charged interest on this cash holding and any amount removed will be offset against the final settlement value of the swap. The Frontier Select Fund (through its investment in an unconsolidated trading company) and Frontier Heritage Fund Brevan Howard swap investments were liquidated on May 30, 2020 and Frontier Balanced Fund, Frontier Long/Short Commodity Fund, Frontier Diversified Fund TRS swap investment were liquidated on December 21, 2020. The Trust had invested in the following swaps as of and for the year ended December 31, 2020: XXXIV Balanced select swap XXXV Diversified select swap XXXVII L/S select swap Brevan Howard Total Return Swap Total Return Swap Total Return Swap Total Return Swap Counterparty Deutsche Bank AG Deutsche Bank AG Deutsche Bank AG Deutsche Bank AG Realized Gain/(Loss) $ (2,448,166 ) $ (446,306 ) $ 188,100 $ (97,745 ) Change in Unrealized Gain/(Loss) $ (3,088,917 ) $ (1,537,399 ) $ 44,277 $ 197,829 Fair Value as of December 31, 2020 $ 0 $ 0 $ 0 $ 0 Advance on swap appreciation $ 0 $ 0 $ 0 $ 0

Investments in Unconsolidated T

Investments in Unconsolidated Trading Companies and Private Investment Companies	12 Months Ended
	Dec. 31, 2021
The Series of Frontier Funds [Member]
Investments in Unconsolidated Trading Companies and Private Investment Companies [Line Items]
Investments in Unconsolidated Trading Companies and Private Investment Companies	5. Investments in Unconsolidated Trading Companies and Private Investment Companies Investments in unconsolidated Trading Companies and private investment companies represent cash and open trade equity invested in the Trading and private investment companies and cumulative trading profits or losses allocated to each Series by the Trading Companies and private investment companies. Trading Companies and private investment companies allocate trading profits or losses on the basis of the proportion of each Series’ capital allocated for trading to each respective Trading Company, which bears no relationship to the amount of cash invested by a Series in the Trading Company and private investment companies. The Trading Companies are valued using the equity method of accounting, which approximates fair value. Investments in private investment companies are valued using the NAV provided by the underlying private investment. The following table summarizes each of the Series’ investments in unconsolidated Trading Companies as of December 31, 2021 and 2020: As of December 31, 2021 As of December 31, 2020 Percentage of Percentage of Series Total Series Total Capital Invested in Capital Invested in Unconsolidated Trading Companies Fair Value Unconsolidated Trading Companies Fair Value Series Frontier Diversified Series — Frontier Trading Company XXXVIII 1.02 % $ 30,788 0.40 % $ 16,669 Frontier Masters Fund --- Frontier Trading Company XXXVIII 2.02 % $ 14,270 0.09 % $ 907 Frontier Long/Short Commodity Fund --- Frontier Trading Company XXXVIII 0.61 % $ 7,541 1.35 % $ 17,736 Frontier Balanced Fund --- Frontier Trading Company XXXVIII 0.37 % $ 34,977 0.41 % $ 49,755 Frontier Select Fund --- Frontier Trading Companies XXXVIII 0.67 % $ 9,514 0.00 % $ - Frontier Global Fund --- Frontier Trading Company XXXVIII 1.13 % $ 23,818 0.04 % $ 1,083 Frontier Heritage Fund --- Frontier Trading Company XXXVIII 0.39 % $ 9,087 0.12 % $ 2,880 The Series investments in private investment companies have certain redemption and liquidity restrictions which are described in the following table: Redemptions Redemptions Liquidity Notice Period Permitted Restrictions Frontier Diversified Fund Multi-Strategy Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 24 hours Daily None Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC 24 hours Daily None Trend Following Galaxy Plus Fund - Aspect Feeder Fund (532) LLC Daily None Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC 24 hours Daily None Galaxy Plus Fund - QIM Feeder Fund (526) LLC 24 hours Daily None Galaxy Plus Fund - Quest Feeder Fund (517) LLC 24 hours Daily None Frontier Masters Fund Trend Following Galaxy Plus Fund - Aspect Feeder Fund (532) LLC 24 hours Daily None Multi-Strategy Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 24 hours Daily None Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC 24 hours Daily None Frontier Long/Short Commodity Fund Multi-Strategy Galaxy Plus Fund - LRR Feeder Fund (522) LLC 24 hours Daily None Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 24 hours Daily None Galaxy Plus Fund – Volt Diversified Alpha Feeder Fund (550) LLC 24 hours Daily None Frontier Balanced Fund Multi-Strategy Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC 24 hours Daily None Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 24 hours Daily None Trend Following Galaxy Plus Fund - Aspect Feeder Fund (532) LLC 24 hours Daily None Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC 24 hours Daily None Galaxy Plus Fund - QIM Feeder Fund (526) LLC 24 hours Daily None Galaxy Plus Fund - Quest Feeder Fund (517) LLC 24 hours Daily None Frontier Select Fund Multi-Strategy Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 24 hours Daily None Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC 24 hours Daily None Frontier Global Fund Trend Following Galaxy Plus Fund - Aspect Feeder Fund (532) LLC 24 hours Daily None Frontier Heritage Fund Multi-Strategy Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 24 hours Daily None Trend Following Galaxy Plus Fund - Aspect Feeder Fund (532) LLC 24 hours Daily None
Frontier Funds [Member]
Investments in Unconsolidated Trading Companies and Private Investment Companies [Line Items]
Investments in Unconsolidated Trading Companies and Private Investment Companies	5. Investments in Private Investment Companies Investments in private investment companies represent cash and open trade equity invested in the private investment companies as well as the cumulative trading profits or losses allocated to the Trust by the private investment companies. private investment companies allocate trading profits or losses on the basis of the proportion of the Trust’s capital allocated for trading to each respective private investment company, which bears no relationship to the amount of cash invested by the Trust in the private investment companies. Investments in private investment companies are valued using the NAV provided by the underlying private investment. The Galaxy Plus entities are made up a feeder funds in which the Trust invests and master trading entities into which the feeder funds invest. No investment held by the Galaxy Plus master trading entity is greater than 5% of the Trust’s total capital. The Trust’s investments in private investment companies have certain redemption and liquidity restrictions which are described in the following table: Redemptions Redemptions Liquidity Notice Period Permitted Restrictions Frontier Funds Multi-Strategy Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC 24 hours Daily None Galaxy Plus Fund - LRR Feeder Fund (522) LLC 24 hours Daily None Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 24 hours Daily None Galaxy Plus Fund – Volt Diversified Alpha Feeder Fund (550) LLC 24 hours Daily None Trend Following Galaxy Plus Fund - Aspect Feeder Fund (532) LLC 24 hours Daily None Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC 24 hours Daily None Galaxy Plus Fund - QIM Feeder Fund (526) LLC 24 hours Daily None Galaxy Plus Fund - Quest Feeder Fund (517) LLC 24 hours Daily None

Transactions with Affiliates

Transactions with Affiliates	12 Months Ended
	Dec. 31, 2021
The Series of Frontier Funds [Member]
Transactions with Affiliates [Line Items]
Transactions with Affiliates	6. Transactions with Affiliates The Managing Owner contributes funds to the Trust, with respect to the Series, in order to have a 1% interest (“Minimum Purchase Commitment”) in the aggregate capital, profits and losses of all Series and in return will receive units designated as general units in the Series in which the Managing Owner invests such funds. The general units may only be purchased by the Managing Owner and may be subject to no management fees or management fees at reduced rates. Otherwise, the general units hold the same rights as the limited units. The Managing Owner will make contributions to the Series of the Trust necessary to maintain at least a 1% interest in the aggregate capital, profits and losses of the combined Series of the Trust. Such contribution was made by the Managing Owner before trading commenced for the Trust and will be maintained throughout the existence of the Trust, and the Managing Owner will make such purchases as are necessary to effect this requirement. Additionally, the Managing Owner agreed with certain regulatory bodies to maintain a 1% interest specifically in the Frontier Balanced Fund Class 1AP and 2a Units, aggregated, and each of the Frontier Long/Short Commodity Fund, Frontier Diversified Fund and Frontier Masters Fund. The 1% interest in these specific Series is included in computing the Minimum Purchase Commitment in aggregate capital. In addition to the general units the Managing Owner receives in respect of its Minimum Purchase Commitment, the Managing Owner may purchase limited units in any Series as a Limited Owner. Principals of the Managing Owner or affiliates are allowed to own beneficial interests in the Trust, with respect to the Series, as well. All Units purchased by the Managing Owner are held for investment purposes only and not for resale. The Managing Owner may make purchases or redemptions at any time on the same terms as any Limited Owner. The Trust has and will continue to have certain relationships with the Managing Owner and its affiliates. Expenses Management Fees— As of the date of this report, for a Series that has invested in a swap, a Trading Advisor does not receive any management fees directly from the Series for such swap, and instead the relevant Trading Advisor receives compensation via the fees embedded in the swap. As of December 31, 2020, the management fee embedded in (i) swaps owned by Frontier Diversified Fund was 1.00% per annum, (ii) swaps owned by Frontier Balanced Fund was 1.00% per annum, (iii) swaps owned by Frontier Long/Short Commodity Fund was 1.50% per annum, (iv) swaps owned by Frontier Select Fund was 1.00% per annum, and (v) swaps owned by Frontier Heritage Fund was 1.00% per annum, and the Managing Owner had waived the entire management fee due to it from those Series in respect of such Series’ investment in swaps. In each case, the embedded management fee was accrued on the relevant notional amount of the swap. For the year ended December 31, 2021, the Series held no investments in swaps. The management fee as a percentage of the applicable Series’ notional assets will be greater than the percentage of the applicable Series’ net asset value to the extent that the notional assets of the Series exceeds its net asset value. The Managing Owner expects that the notional assets of each Series will generally be maintained at a level in excess of the net asset value of such Series and such excess may be substantial to the extent the Managing Owner deems necessary to achieve the desired level of volatility. Trading Fees— Incentive Fees— Service Fees— Units of the Frontier Diversified Fund and Frontier Masters Fund or Class 2a Units of the Frontier Long/Short Commodity Fund sold) until such Class 2 or Class 2a Units which are subject to the fee limitation are reclassified as Class 3 or Class 3a Units of the applicable Series for administrative purposes. Currently the service fee is not charged to Class 1AP investors. The Managing Owner may also pay selling agents certain additional fees and expenses for administrative and other services rendered and expenses incurred by such selling agents. The Managing Owner has determined that the purchase of additional units of the relevant series will commence in 2022. As such, the Managing Owner has calculated the amounts for additional units of the relevant series which will be purchased and classified such amounts as Subscriptions in advance for service fee rebates of $22,650, $393, $31,725, $369,341, $21,076, $158,810 and $69,814 for the Frontier Diversified, Long/Short Commodity, Masters, Balanced, Select, Global and Heritage Funds, respectively, as of December 31, 2021. The following table summarizes fees earned by the Managing Owner and the Former Managing Owner for the years ended December 31, 2021, 2020 and 2019. For the Year Ended December 31, 2021 Incentive (Rebate) Fees Management Fee Service Fee Trading Fee Frontier Diversified Fund $ - $ - $ 2,118 $ 125,429 Frontier Masters Fund - - 628 52,957 Frontier Long/Short Commodity Fund - - 228 38,961 Frontier Balanced Fund 158,775 18,441 258,209 435,300 Frontier Select Fund - - 46,410 46,943 Frontier Global Fund - - 76,678 140,017 Frontier Heritage Fund - - 68,400 101,631 For the Year Ended December 31, 2020 Incentive (Rebate) Fees Management Fee Service Fee Trading Fee Frontier Diversified Fund $ - $ - $ 14,246 $ 251,203 Frontier Masters Fund - - 1,786 101,300 Frontier Long/Short Commodity Fund - - 381 32,628 Frontier Balanced Fund - 19,600 351,503 580,978 Frontier Select Fund - - 62,144 53,759 Frontier Global Fund - - 100,858 186,591 Frontier Heritage Fund - - 66,761 104,941 For the Year Ended December 31, 2019 Incentive (Rebate) Fees Management Fee Service Fee Trading Fee Frontier Diversified Fund $ - $ 2,668 $ 44,726 $ 493,585 Frontier Masters Fund - 7,665 11,635 213,153 Frontier Long/Short Commodity Fund - - 562 54,334 Frontier Balanced Fund - 22,377 606,359 972,678 Frontier Select Fund - - 102,692 85,589 Frontier Global Fund - 38,679 177,833 278,497 Frontier Heritage Fund - 7,289 84,518 118,979 The following table summarizes fees payable to the Managing Owner and Former Managing Owner as of December 31, 2021 and 2020. As of December 31, 2021 Incentive Fees Management Fees Interest Fees Service Fees Trading Fees Frontier Diversified Fund $ - $ - $ - $ 83 $ 9,217 Frontier Masters Fund - - - 43 3,882 Frontier Long/Short Commodity Fund - - 32 19 3,407 Frontier Balanced Fund 54,702 1,431 957 18,314 32,970 Frontier Select Fund - - 196 3,524 3,682 Frontier Global Fund - - 312 4,986 9,533 Frontier Heritage Fund - - 217 4,950 8,307 As of December 31, 2020 Incentive Fees Management Fees Interest Fees Service Fees Trading Fees Frontier Diversified Fund $ - $ - $ - $ 385 $ 12,576 Frontier Masters Fund - - - 70 5,460 Frontier Long/Short Commodity Fund - - 87 18 2,281 Frontier Balanced Fund - 8,854 1,376 21,381 37,894 Frontier Select Fund - - 179 3,709 3,933 Frontier Global Fund - - 326 6,348 11,849 Frontier Heritage Fund - - 139 4,794 7,705 With respect to the service fees, the initial service fee (for the first 12 months) relating to a purchase of Units by an investor is prepaid by the Managing Owner to the relevant selling agent in the month following such purchase and is reimbursed therefore by the Series monthly in arrears in an amount based upon a corresponding percentage of NAV, calculated daily. Consequently, the Managing Owner bears the risk and the benefit of the upside potential of any difference between the amount of the initial service fee prepaid by it and the amount of the reimbursement thereof, which may result from variations in NAV over the following 12 months. Aggregate interest income from all sources, including U.S. Treasury Securities assets net of premiums and cash held at clearing brokers, of up to the first 2% (annualized) of average net assets less any fair market value related to swaps is paid to the Managing Owner by the Frontier Balanced Fund (Class 1 and Class 2), Frontier Long/Short Commodity Fund (Class 2 and Class 3), Frontier Global Fund, Frontier Select Fund, and Frontier Heritage Fund. For the Frontier Diversified Fund, Frontier Long/Short Commodity Fund (Class 1a, Class 2a and Class 3a), Frontier Masters Fund, and Frontier Balanced Fund (Class 1AP, Class 2a and Class 3a), 100% of the interest is retained by the respective Series. Frontier Masters Fund Class 1 was closed as of April 1, 2021 and Frontier Diversified Fund Class 1 was closed as of July 21, 2021. All swaps were sold as of December 31, 2020. The following table outlines the interest paid by each Series to the Managing Owner and Former Managing Owner and its ratio to average net assets for the years ended December 31, 2021, 2020 and 2019: 2021 2020 2019 2021 2020 2019 Gross Amount Paid to the Managing Owner Gross Amount Paid to the Managing Owner Gross Amount Paid to the Managing Owner Ratio to Average Net Assets Ratio to Average Net Assets Ratio to Average Net Assets Frontier Diversified Fund Class 1 $ - $ 128,397 $ - 0.00 % 33.62 % 0.00 % Frontier Diversified Fund Class 2 - 791,849 - 0.00 % 29.93 % 0.00 % Frontier Diversified Fund Class 3 - 617,154 - 0.00 % 14.78 % 0.00 % Frontier Masters Fund Class 1 - 219 - 0.00 % 2.00 % 0.00 % Frontier Masters Fund Class 2 - 1,567 - 0.00 % 0.25 % 0.00 % Frontier Long/Short Commodity Fund Class 2 22 27 14 0.06 % 0.07 % 0.02 % Frontier Long/Short Commodity Fund Class 3 659 703 337 0.06 % 0.07 % 0.02 % Frontier Balanced Fund Class 1 8,660 7,387 3,925 0.10 % 0.06 % 0.02 % Frontier Balanced Fund Class 1AP 108 103 64 0.11 % 0.06 % 0.02 % Frontier Balanced Fund Class 2 1,749 1,484 764 0.10 % 0.06 % 0.02 % Frontier Balanced Fund Class 2a 16 17 10 0.02 % 0.01 % 0.00 % Frontier Balanced Fund Class 3a 103 80 32 0.02 % 0.01 % 0.00 % Frontier Select Fund Class 1 2,876 4,514 5,563 0.19 % 0.22 % 0.16 % Frontier Select Fund Class 1AP 20 24 15 0.19 % 0.24 % 0.19 % Frontier Select Fund Class 2 138 173 174 0.18 % 0.23 % 0.16 % Frontier Global Fund Class 1 3,665 3,110 23,787 0.14 % 0.09 % 0.40 % Frontier Global Fund Class 1AP - 28 114 0.00 % 0.10 % 0.33 % Frontier Global Fund Class 2 281 238 1,386 0.14 % 0.09 % 0.35 % Frontier Heritage Fund Class 1 3,669 5,141 5,323 0.16 % 0.23 % 0.19 % Frontier Heritage Fund Class 1AP 14 20 9 0.16 % 0.24 % 0.15 % Frontier Heritage Fund Class 2 373 847 1,088 0.16 % 0.20 % 0.18 % Total $ 22,353 $ 1,563,082 $ 42,605
Frontier Funds [Member]
Transactions with Affiliates [Line Items]
Transactions with Affiliates	6. Transactions with Affiliates The Managing Owner contributes funds to the Trust in order to have a 1% interest in the aggregate capital, profits and losses and in return will receive units designated as general units in the Series of the Trust in which the Managing Owner invests such funds. The general units may only be purchased by the Managing Owner and may be subject to no advisory fees or management advisory fees at reduced rates. Otherwise, the general units hold the same rights as the limited units. The Managing Owner is required to maintain at least a 1% interest (“Minimum Purchase Commitment”) in the aggregate capital, profits and losses of the Trust so long as it is acting as the Managing Owner of the Trust. Such contribution was made by the Managing Owner before trading commenced for the Trust and will be maintained throughout the existence of the Trust, and the Managing Owner will make such purchases as are necessary to effect this requirement. Additionally, the Managing Owner agreed with certain regulatory bodies to maintain a 1% interest specifically in the Frontier Balanced Fund Class 1AP Units and Frontier Balanced Fund Class 2a Units, aggregated, and each of the Frontier Long/Short Commodity Fund, Frontier Diversified Fund, and Frontier Masters Fund. The 1% interest in these specific Series of the Trust is included in computing the Minimum Purchase Commitment in aggregate capital. In addition to the general units the Managing Owner receives in respect of its Minimum Purchase Commitment, the Managing Owner may purchase limited units in any Series as a Limited Owner. Principals of the Managing Owner or affiliates are allowed to own beneficial interests in the Trust, as well. All units purchased by the Managing Owner are held for investment purposes only and not for resale. The Managing Owner may make purchases or redemptions at any time on the same terms as any Limited Owner. The Trust has and will continue to have certain relationships with the Managing Owner and its affiliates. Expenses Management Fees— Each Series of Units pays to the Managing Owner a monthly management fee equal to a percentage of the notional assets of such Series allocated to Trading Companies, calculated on a daily basis. The percentage basis of the fees varies and are in line with the amounts being disclosed below. In addition, the Managing Owner receives a monthly management equal to a certain percentage of the assets in the Galaxy Plus entities attributable to such Series’ (including notional assets), calculated on a monthly basis. The management fees attributable to Galaxy Plus entities are included in unrealized gain/(loss) on private investment companies on the Statements of Operations. The total amount of assets of a Series allocated to Trading Advisors and/or reference programs, including (i) actual funds deposited in accounts directed by the Trading Advisors or deposited as margin in respect of swaps or other derivative instruments referencing a reference program plus (ii) any notional equity allocated to the Trading Advisors and any reference programs, is referred to herein as the “notional assets” of the Series. The annual rate of the management fee is: 0.5% for the Frontier Balanced Fund Class 1 and Class 2, 1.0% for the Frontier Balanced Fund Class 1AP, Class 2a and Class 3a, 2.0% for the Frontier Global Fund, Frontier Long/Short Commodity Fund Class 1a, Class 2a and Class 3a and Frontier Masters Fund, 0.75% for Frontier Diversified Fund, 2.5% for the Frontier Heritage Fund and Frontier Select Fund, and 3.5% for the Frontier Long/Short Commodity Fund Class 2 and Class 3. The Managing Owner may pay all or a portion of such management fees to the Trading Advisor(s) and/or waive (up to the percentage specified) any such management fee to the extent any related management fee is paid by a trading company or estimated management fee is embedded in a swap or other derivative instrument. Any management fee embedded in a swap or other derivative instrument may be greater or less than the management fee that would otherwise be charged to the Series by the Managing Owner. As of the date of this report, for a Series that was invested in a swap, the Managing Owner or Trading Advisor(s) did not receive any management fees directly from the Series for such swap, and instead the relevant Trading Advisor received compensation via the fees embedded in the swap. As of December 31, 2020, the range of management fees embedded based on fair value of swaps in (i) swaps owned by Frontier Diversified Fund was 1.00% per annum, (ii) swaps owned by Frontier Balanced Fund was 1.00% per annum, (iii) swaps owned by Frontier Long/Short Commodity Fund was 1.50% per annum, and (iv) swaps owned by Frontier Heritage Fund was 1.00% per annum, and the Managing Owner had waived the entire management fee due to it from those Series in respect of such Series’ investment in swaps. In each case, the embedded management fee was accrued on the relevant notional amount of the swap. For the year ended December 31, 2021, the Series held no investments in swaps. The management fee as a percentage of the applicable Series’ notional assets will be greater than the percentage of the applicable Series’ net asset value to the extent that the notional assets of the Series exceeds its net asset value. The Managing Owner expects that the notional assets of each Series will generally be maintained at a level in excess of the net asset value of such Series and such excess may be substantial to the extent the Managing Owner deems necessary to achieve the desired level of volatility. The management fee as a percentage of the applicable Series’ notional assets will be greater than the percentage of the applicable Series’ net asset value to the extent that the notional assets of the Series exceeds its net asset value. The Managing Owner expects that the notional assets of each Series will generally be maintained at a level in excess of the net asset value of such Series and such excess may be substantial to the extent the Managing Owner deems necessary to achieve the desired level of volatility. Trading Fees— Incentive Fees Some Series pay to the Managing Owner an incentive fee of a certain percentage of new net trading profits generated in the Trading Companies by such Series, monthly or quarterly. In addition, the Managing Owner receives a quarterly incentive fee of a certain percentage of new net trading profits generated in the Galaxy Plus entities that have been allocated to the Series. The incentive fees attributable to Galaxy Plus entities are included in unrealized gain/(loss) on private investment companies on the Statements of Operations. Because the Frontier Balanced Fund, Frontier Diversified Fund, Frontier Masters Fund, Frontier Heritage Fund, Frontier Select Fund, and Frontier Long/Short Commodity Fund may each employ multiple Trading Advisors, these Series will pay the Managing Owner a monthly incentive fee calculated on a Trading Advisor by Trading Advisor basis. It is therefore possible that in any given period the Series may pay incentive fees to the Managing Owner for one or more Trading Advisors while each of these Series as a whole experiences losses. The incentive fee is 25% for the Frontier Balanced Fund and the Frontier Diversified Fund and 20% for the Frontier Global Fund, Frontier Heritage Fund, Frontier Select Fund, Frontier Long/Short Commodity Fund and Frontier Masters Fund. The Managing Owner may pay all or a portion of such incentive fees to the Trading Advisor(s) for such Series. As of the date of this report, for a Series that was invested in a swap, the Managing Owner or Trading Advisor(s) did not receive any incentive fees directly from the Series for such swap, and instead the relevant Trading Advisor received compensation via the fees embedded in the swap. As of December 31, 2020, the range of incentive fees as a percentage of net new trading profits on swaps embedded in (i) swaps owned by Frontier Diversified Fund was 20-25% per annum, (ii) swaps owned by Frontier Balanced Fund was 20-25% per annum, (iii) swaps owned by Frontier Long/Short Commodity Fund was 25% per annum, and (iv) swaps owned by Frontier Heritage Fund was 15% per annum, and the Managing Owner has waived the entire incentive fee due to it from those Series in respect of such Series’ investment in swaps. In each case, the embedded incentive fee was accrued based on the net new trading profits of the swap. Service Fees— As of December 31, 2021, the Trust had a payable to the Managing Owner in the amounts of $54,702, $1,431, $1,714, $70,998 and $31,919 for incentive fees, management fees, interest, trading fees, and service fees, respectively. As of December 31, 2020, the Trust had a payable to the Managing Owner in the amounts of $0, $8,854, $2,107, $81,698 and $36,705 for incentive fees, management fees, interest, trading fees, and service fees, respectively. As of December 31, 2019, the Trust had a payable to the Managing Owner in the amounts of $0, $8,795, $327, $160,907 and $68,762 for incentive fees, management fees, interest, trading fees, and service fees, respectively. For the year ended December 31, 2021, the Managing Owner earned $158,775, $18,441, $452,671 and $941,238 for incentive fees, management fees, service fees, and trading fees, respectively. For the year ended December 31, 2020, the Managing Owner earned $0, $19,600, $597,679 and $1,311,400 for incentive fees, management fees, service fees, and trading fees, respectively. For the year ended December 31, 2019, the Managing Owner earned $0, $78,678, $1,028,325 and $2,216,815 for incentive fees, management fees, service fees, and trading fees, respectively. With respect to the service fees, the initial service fee (for the first 12 months) relating to a purchase of Units by an investor is prepaid by the Managing Owner to the relevant selling agent in the month following such purchase and is reimbursed therefore by the Series monthly in arrears in an amount based upon a corresponding percentage of NAV, calculated daily. Consequently, the Managing Owner bears the risk and enjoys the benefit of the upside potential of any difference between the amount of the initial service fee prepaid by it and the amount of the reimbursement thereof, which may result from variations in NAV over the following 12 months. Aggregate interest income from all sources, including U.S. Treasury Securities assets net of premiums and cash held at clearing brokers, of up to the first 2% (annualized) is paid to the Managing Owner by the Frontier Balanced Fund (Class 1 and Class 2 only), Frontier Long/Short Commodity Fund (Class 2 and Class 3), Frontier Global Fund, Frontier Select Fund, and Frontier Heritage Fund. For the Frontier Diversified Fund, Frontier Long/Short Commodity Fund (Class 1a, Class 2a and Class 3a), Frontier Masters Fund, and Frontier Balanced Fund (Class 1AP, Class 2a and Class 3a), 100% of the interest is retained by the respective Series . Frontier Masters Fund Class 1 was closed as of April 1, 2021, and Frontier Diversified Fund Class 1 was closed as of July 21, 2021.

Financial Highlights

Financial Highlights	12 Months Ended
	Dec. 31, 2021
The Series of the Frontier Funds [Member]
Financial Highlights [Line Items]
Financial Highlights	7. Financial Highlights The following information presents the financial highlights of the Series for the years ended December 31, 2021, 2020 and 2019. This data has been derived from the information presented in the financial statements. For the year ended December 31, 2021 Frontier Diversified Fund Frontier Masters Fund Frontier Long/Short Commodity Fund Class 1 Class 2 Class 3 Class 1 Class 2 Class 3 Class 2 Class 2a Class 3 Class 3a Per unit operating performance (1) Net asset value, December 31, 2020 $ 72.68 $ 88.95 $ 83.33 $ 55.18 $ 67.54 $ 63.52 $ 85.99 $ 55.29 $ 90.21 $ 58.37 Net operating results: Interest income 0.09 0.11 0.11 0.19 0.27 0.25 0.27 0.17 0.27 0.17 Expenses (4.32 ) (3.28 ) (3.17 ) (6.89 ) (4.56 ) (4.28 ) (2.88 ) (1.74 ) (2.85 ) (1.84 ) Net gain/(loss) on investments, net of non-controlling interests (68.45 )* 3.19 3.28 (48.48 )* 6.92 6.66 6.59 5.04 6.75 5.45 Net income/(loss) (72.68 )* 0.03 0.23 (55.18 )* 2.63 2.63 3.98 3.46 4.17 3.79 Net asset value, December 31, 2021 $ - * $ 88.98 $ 83.56 $ - * $ 70.17 $ 66.15 $ 89.97 $ 58.75 $ 94.38 $ 62.16 Ratios to average net assets Net investment income/(loss) -10.83 % -6.54 % -6.54 % -24.03 % -11.12 % -11.12 % -5.16 % -5.16 % -5.16 % -5.16 % Expenses before incentive fees (3)(4) 11.07 % 6.78 % 6.78 % 24.71 % 11.81 % 11.81 % 5.70 % 5.70 % 5.70 % 5.70 % Expenses after incentive fees (3)(4) 11.07 % 6.78 % 6.78 % 24.71 % 11.81 % 11.81 % 5.70 % 5.70 % 5.70 % 5.70 % Total return before incentive fees (2) 5.06 %* 0.03 % 0.28 % 4.59 %* 3.89 % 4.14 % 4.63 % 6.25 % 4.63 % 6.49 % Total return after incentive fees (2) 5.06 %* 0.03 % 0.28 % 4.59 %* 3.89 % 4.14 % 4.63 % 6.25 % 4.63 % 6.49 % Frontier Balanced Fund Frontier Select Fund Class 1 Class 1AP Class 2 Class 2a Class 3a Class 1 Class 1AP Class 2 Per unit operating performance (1) Net asset value, December 31, 2020 $ 79.93 $ 96.81 $ 130.54 $ 113.20 $ 112.81 $ 58.55 $ 70.99 $ 94.20 Net operating results: Interest income 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Expenses (7.39 ) (6.40 ) (7.92 ) (7.83 ) (6.75 ) (3.87 ) (2.22 ) (2.95 ) Net gain/(loss) on investments, net of non-controlling interests 10.28 12.97 16.78 15.61 14.51 8.71 10.44 13.86 Net income/(loss) 2.89 6.57 8.86 7.78 7.76 4.84 8.22 10.90 Net asset value, December 31, 2021 $ 82.82 $ 103.38 $ 139.40 $ 120.98 $ 120.57 $ 63.39 $ 79.21 $ 105.10 Ratios to average net assets Net investment income/(loss) -15.38 % -9.53 % -9.53 % -9.53 % -9.53 % -11.80 % -5.79 % -5.79 % Expenses before incentive fees (3)(4) 13.99 % 8.14 % 8.14 % 8.14 % 8.14 % 11.80 % 5.79 % 5.79 % Expenses after incentive fees (3)(4) 15.38 % 9.53 % 9.53 % 9.53 % 9.53 % 11.80 % 5.79 % 5.79 % Total return before incentive fees (2) 5.01 % 8.18 % 8.18 % 8.27 % 8.27 % 8.27 % 11.58 % 11.57 % Total return after incentive fees (2) 3.61 % 6.79 % 6.79 % 6.87 % 6.88 % 8.27 % 11.58 % 11.57 % Frontier Global Fund Frontier Heritage Fund Class 1 Class 2 Class 1 Class 1AP Class 2 Per unit operating performance (1) Net asset value, December 31, 2020 $ 110.90 $ 167.56 $ 96.10 $ 116.50 $ 155.92 Net operating results: Interest income 0.00 0.00 0.00 0.00 0.00 Expenses (9.45 ) (8.67 ) (7.58 ) (5.34 ) (7.16 ) Net gain/(loss) on investments, net of non-controlling interests 8.00 11.51 14.91 18.03 24.16 Net income/(loss) (1.45 ) 2.84 7.33 12.69 16.99 Net asset value, December 31, 2021 $ 109.45 $ 170.40 $ 103.43 $ 129.19 $ 172.91 Ratios to average net assets Net investment income/(loss) -15.46 % -9.73 % -14.26 % -8.18 % -8.18 % Expenses before incentive fees (3)(4) 15.46 % 9.73 % 14.26 % 8.18 % 8.18 % Expenses after incentive fees (3)(4) 15.46 % 9.73 % 14.26 % 8.18 % 8.18 % Total return before incentive fees (2) -1.31 % 1.70 % 7.62 % 10.89 % 10.90 % Total return after incentive fees (2) -1.31 % 1.70 % 7.62 % 10.89 % 10.90 % (1) Interest income and expenses per unit are calculated by dividing these amounts by the average number of units outstanding during the period. The net gain/(loss) on investments, net of non-controlling interests is a balancing amount necessary to reconcile the change in net asset value per unit with the other per unit information. (2) Impact of incentive fee computed using average net assets, otherwise computed using average units outstanding during the period prior to the effects of any non-controlling transactions. An owner’s total returns may vary from the above returns based on the timing of contributions and withdrawals. Total returns are not annualized. (3) Expense ratios do not reflect interest allocated to the Managing Owner as such expenses are not included in the Statements of Operations of the Series, see footnote 6. (4) Expense ratios do not include management and incentive fees at the Galaxy Plus entities. The ratios would have been higher had those expenses been included. The impact of those fees are included in the total return. * Class 1 of Frontier Master Fund was closed as of April 1, 2021 and Frontier Diversified Fund Class 1 was closed as of July 21, 2021. For the year ended December 31, 2020 Frontier Diversified Fund Frontier Masters Fund Frontier Long/Short Commodity Fund Class 1 Class 2 Class 3 Class 1 Class 2 Class 3 Class 1a Class 2 Class 2a Class 3 Class 3a Per unit operating performance (1) Net asset value, December 31, 2019 $ 101.10 $ 121.58 $ 113.61 $ 72.28 $ 87.18 $ 81.78 $ 44.20 $ 81.60 $ 52.55 $ 85.64 $ 55.31 Net operating results: Interest income 0.01 0.01 0.01 0.09 0.12 0.11 0.14 0.25 0.16 0.27 0.17 Expenses (6.39 ) (3.65 ) (3.23 ) (14.02 ) (4.83 ) (4.51 ) (3.09 ) (2.09 ) (1.34 ) (2.19 ) (1.41 ) Net gain/(loss) on investments, net of non-controlling interests (22.03 ) (28.98 ) (27.06 ) (3.17 ) (14.93 ) (13.86 ) (41.24 )* 6.22 3.91 6.49 4.30 Net income/(loss) (28.42 ) (32.63 ) (30.28 ) (17.10 ) (19.64 ) (18.27 ) (44.20 )* 4.39 2.74 4.56 3.05 Net asset value, December 31, 2020 $ 72.68 $ 88.95 $ 83.33 $ 55.18 $ 67.54 $ 63.52 $ - * $ 85.99 $ 55.29 $ 90.21 $ 58.37 Ratios to average net assets Net investment income/(loss) -7.33 % -3.60 % -3.60 % -22.42 % -6.13 % -6.13 % -6.61 % -2.21 % -2.21 % -2.21 % -2.21 % Expenses before incentive fees (3)(4) 7.34 % 3.61 % 3.61 % 22.57 % 6.28 % 6.28 % 6.91 % 2.51 % 2.51 % 2.51 % 2.51 % Expenses after incentive fees (3)(4) 7.34 % 3.61 % 3.61 % 22.57 % 6.28 % 6.28 % 6.91 % 2.51 % 2.51 % 2.51 % 2.51 % Total return before incentive fees (2) -28.11 % -26.84 % -26.65 % -23.66 % -22.53 % -22.33 % -1.63 %* 5.38 % 5.20 % 5.33 % 5.52 % Total return after incentive fees (2) -28.11 % -26.84 % -26.65 % -23.66 % -22.53 % -22.33 % -1.63 %* 5.38 % 5.20 % 5.33 % 5.52 % Frontier Balanced Fund Frontier Select Fund Class 1 Class 1AP Class 2 Class 2a Class 3a Class 1 Class 1AP Class 2 Per unit operating performance (1) Net asset value, December 31, 2019 $ 117.23 $ 137.81 $ 185.82 $ 161.04 $ 160.50 $ 66.56 $ 78.51 $ 103.94 Net operating results: Interest income 0.04 0.04 0.06 0.05 0.05 0.00 0.00 0.00 Expenses (6.16 ) (4.17 ) (5.64 ) (4.92 ) (4.87 ) (3.40 ) (1.82 ) (2.42 ) Net gain/(loss) on investments, net of non-controlling interests (31.19 ) (36.87 ) (49.70 ) (42.97 ) (42.87 ) (4.60 ) (5.70 ) (7.32 ) Net income/(loss) (37.31 ) (41.00 ) (55.28 ) (47.84 ) (47.69 ) (8.01 ) (7.52 ) (9.74 ) Net asset value, December 31, 2020 $ 79.93 $ 96.81 $ 130.54 $ 113.20 $ 112.81 $ 58.55 $ 70.99 $ 94.20 Ratios to average net assets Net investment income/(loss) -6.98 % -3.99 % -3.99 % -3.99 % -3.99 % -5.49 % -2.49 % -2.49 % Expenses before incentive fees (3)(4) 7.03 % 4.03 % 4.03 % 4.03 % 4.03 % 5.49 % 2.49 % 2.49 % Expenses after incentive fees (3)(4) 7.03 % 4.03 % 4.03 % 4.03 % 4.03 % 5.49 % 2.49 % 2.49 % Total return before incentive fees (2) -31.82 % -29.75 % -29.75 % -29.71 % -29.71 % -12.03 % -9.58 % -9.37 % Total return after incentive fees (2) -31.82 % -29.75 % -29.75 % -29.71 % -29.71 % -12.03 % -9.58 % -9.37 % Frontier Global Fund Frontier Heritage Fund Class 1 Class 1AP Class 2 Class 1 Class 1AP Class 2 Per unit operating performance (1) Net asset value, December 31, 2019 $ 131.52 $ 154.43 $ 192.82 $ 97.54 $ 114.15 $ 153.59 Net operating results: Interest income 0.00 0.00 0.00 0.00 0.00 0.00 Expenses (9.95 ) (7.59 ) (9.47 ) (6.76 ) (4.58 ) (6.26 ) Net gain/(loss) on investments, net of non-controlling interests (10.67 ) (146.84 )* (15.79 ) 5.33 6.93 8.58 Net income/(loss) (20.62 ) (154.43 )* (25.26 ) (1.44 ) 2.35 2.32 Net asset value, December 31, 2020 $ 110.90 $ - * $ 167.56 $ 96.10 $ 116.50 $ 155.92 Ratios to average net assets Net investment income/(loss) -8.11 % -5.12 % -5.12 % -6.93 % -3.93 % -3.93 % Expenses before incentive fees (3)(4) 8.11 % 5.12 % 5.12 % 6.93 % 3.93 % 3.93 % Expenses after incentive fees (3)(4) 8.11 % 5.12 % 5.12 % 6.93 % 3.93 % 3.93 % Total return before incentive fees (2) -15.68 % -23.34 %* -13.10 % -1.47 % 2.06 % 1.51 % Total return after incentive fees (2) -15.68 % -23.34 %* -13.10 % -1.47 % 2.06 % 1.51 % (1) Interest income and expenses per unit are calculated by dividing these amounts by the average number of units outstanding during the period. The net gain/(loss) on investments, net of non-controlling interests is a balancing amount necessary to reconcile the change in net asset value per unit with the other per unit information. (2) Impact of incentive fee computed using average net assets, otherwise computed using average units outstanding during the period prior to the effects of any non-controlling transactions. An owner’s total returns may vary from the above returns based on the timing of contributions and withdrawals. Total returns are not annualized. (3) Expense ratios do not reflect interest allocated to the Managing Owner as such expenses are not included in the Statements of Operations of the Series, see footnote 6. (4) Expense ratios do not include management and incentive fees at the Galaxy Plus entities. The ratios would have been higher had those expenses been included. The impact of those fees are included in the total return. * Frontier Long/Short Commodity Fund Class 1A was closed as of September 30, 2020 and Frontier Global Class 1AP was closed as of November 18, 2020. For the year ended December 31, 2019 Frontier Diversified Fund Frontier Masters Fund Frontier Long/Short Commodity Fund Class 1 Class 2 Class 3 Class 1 Class 2 Class 3 Class 1a Class 2 Class 2a Class 3 Class 3a Per unit operating performance (1) Net asset value, December 31, 2018 $ 102.25 $ 120.84 $ 112.62 $ 91.10 $ 107.68 $ 100.77 $ 56.80 $ 98.82 $ 66.52 $ 103.66 $ 69.83 Net operating results: Interest income 0.15 0.17 0.16 0.11 0.13 0.12 0.05 0.10 0.06 0.10 0.06 Expenses (6.83 ) (4.47 ) (4.17 ) (7.39 ) (6.11 ) (5.75 ) (3.24 ) (2.57 ) (1.62 ) (2.70 ) (1.70 ) Net gain/(loss) on investments, net of non-controlling interests 5.54 5.03 4.99 (11.54 ) (14.52 ) (13.36 ) (9.41 ) (14.74 ) (12.41 ) (15.41 ) (12.88 ) Net income/(loss) (1.15 ) 0.74 0.98 (18.82 ) (20.49 ) (18.98 ) (12.60 ) (17.22 ) (13.97 ) (18.02 ) (14.51 ) Net asset value, December 31, 2019 $ 101.10 $ 121.58 $ 113.61 $ 72.28 $ 87.18 $ 81.78 $ 44.20 $ 81.60 $ 52.55 $ 85.64 $ 55.31 Ratios to average net assets Net investment income/(loss) -6.58 % -3.55 % -3.55 % -8.52 % -5.91 % -5.91 % -6.45 % -2.67 % -2.67 % -2.67 % -2.67 % Expenses before incentive fees (3)(4) 6.73 % 3.70 % 3.70 % 8.65 % 6.04 % 6.04 % 6.55 % 2.77 % 2.77 % 2.77 % 2.77 % Expenses after incentive fees (3)(4) 6.73 % 3.70 % 3.70 % 8.65 % 6.04 % 6.04 % 6.55 % 2.77 % 2.77 % 2.77 % 2.77 % Total return before incentive fees (2) -1.12 % 0.61 % 0.87 % -20.66 % -19.03 % -18.84 % -22.19 % -17.43 % -21.00 % -17.38 % -20.79 % Total return after incentive fees (2) -1.12 % 0.61 % 0.87 % -20.66 % -19.03 % -18.84 % -22.19 % -17.43 % -21.00 % -17.38 % -20.79 % Frontier Balanced Fund Frontier Select Fund Class 1 Class 1AP Class 2 Class 2a Class 3a Class 1 Class 1AP Class 2 Per unit operating performance (1) Net asset value, December 31, 2018 $ 117.63 $ 134.16 $ 180.94 $ 156.81 $ 156.26 $ 71.41 $ 82.48 $ 108.18 Net operating results: Interest income 0.21 0.24 0.33 0.28 0.28 (0.00 ) 0.00 (0.00 ) Expenses (8.01 ) (5.25 ) (7.08 ) (6.12 ) (6.12 ) (3.93 ) (2.09 ) (2.69 ) Net gain/(loss) on investments, net of non-controlling interests 7.40 8.66 11.63 10.08 10.08 (0.93 ) (1.88 ) (1.55 ) Net income/(loss) (0.40 ) 3.65 4.88 4.23 4.24 (4.86 ) (3.97 ) (4.24 ) Net asset value, December 31, 2019 $ 117.23 $ 137.81 $ 185.82 $ 161.04 $ 160.50 $ 66.56 $ 78.51 $ 103.94 Ratios to average net assets Net investment income/(loss) -6.73 % -3.73 % -3.73 % -3.73 % -3.73 % -5.42 % -2.42 % -2.42 % Expenses before incentive fees (3)(4) 6.91 % 3.91 % 3.91 % 3.91 % 3.91 % 5.42 % 2.42 % 2.42 % Expenses after incentive fees (3)(4) 6.91 % 3.91 % 3.91 % 3.91 % 3.91 % 5.42 % 2.42 % 2.42 % Total return before incentive fees (2) -0.34 % 2.72 % 2.70 % 2.70 % 2.71 % -6.80 % -4.81 % -3.92 % Total return after incentive fees (2) -0.34 % 2.72 % 2.70 % 2.70 % 2.71 % -6.80 % -4.81 % -3.92 % Frontier Global Fund Frontier Heritage Fund Class 1 Class 1AP Class 2 Class 1 Class 1AP Class 2 Per unit operating performance (1) Net asset value, December 31, 2018 $ 131.57 $ 149.92 $ 187.17 $ 99.83 $ 111.78 $ 152.53 Net operating results: Interest income (0.00 ) (0.00 ) (0.00 ) (0.00 ) 0.00 (0.00 ) Expenses (11.16 ) (8.15 ) (10.11 ) (6.90 ) (4.62 ) (5.93 ) Net gain/(loss) on investments, net of non-controlling interests 11.11 12.66 15.76 4.61 7.00 7.00 Net income/(loss) (0.05 ) 4.51 5.65 (2.29 ) 2.37 1.06 Net asset value, December 31, 2019 $ 131.52 $ 154.43 $ 192.82 $ 97.54 $ 114.15 $ 153.59 Ratios to average net assets Net investment income/(loss) -7.99 % -4.99 % -4.99 % -6.71 % -3.70 % -3.70 % Expenses before incentive fees (3)(4) 7.99 % 4.99 % 4.99 % 6.71 % 3.70 % 3.70 % Expenses after incentive fees (3)(4) 7.99 % 4.99 % 4.99 % 6.71 % 3.70 % 3.70 % Total return before incentive fees (2) -0.04 % 3.01 % 3.02 % -2.30 % 2.12 % 0.70 % Total return after incentive fees (2) -0.04 % 3.01 % 3.02 % -2.30 % 2.12 % 0.70 % (1) Interest income and expenses per unit are calculated by dividing these amounts by the average number of units outstanding during the period. The net gain/(loss) on investments, net of non-controlling interests is a balancing amount necessary to reconcile the change in net asset value per unit with the other per unit information. (2) Impact of incentive fee computed using average net assets, otherwise computed using average units outstanding during the period prior to the effects of any non-controlling transactions. An owner’s total returns may vary from the above returns based on the timing of contributions and withdrawals. Total returns are not annualized. (3) Expense ratios do not reflect interest allocated to the Managing Owner as such expenses are not included in the Statements of Operations of the Series, see footnote 6. (4) Expense ratios do not include management and incentive fees at the Galaxy Plus entities. The ratios would have been higher had those expenses been included. The impact of those fees are included in the total return.
Frontier Funds [Member]
Financial Highlights [Line Items]
Financial Highlights	7. Financial Highlights The following information presents the financial highlights of the Trust for the years ended December 31, 2021, 2020, 2019 and 2018 This data has been derived from the information presented in the consolidated financial statements. 2021 2020 2019 2018 Ratios to average net assets (1) Net investment income/(loss) (1) -6.69 % -5.71 % -5.54 % -6.27 % Expenses before incentive fees (3) (4) -6.06 % -5.75 % -5.71 % -6.37 % Expenses after incentive fees (3) (4) -6.74 % -5.75 % -5.71 % -6.52 % Total return before incentive fees (2) 5.32 % -32.58 % -1.89 % -16.86 % Total return after incentive fees (2) 4.65 % -32.58 % -1.89 % -17.01 % (1) Annualized with the exception of incentive fees. (2) Total returns are not annualized. (3) Expense ratios do not reflect interest allocated to the Managing Owner as such expenses are not included in the Consolidated Statements of Operations of the Trust. See footnote 5. Frontier Masters Fund Class 1 was closed as of April 1, 2021, and Frontier Diversified Fund Class 1 was closed as of July 21, 2021. The Trust financial highlights are calculated based upon the Trust’s consolidated financial statements. The consolidated Trust does not issue units and therefore the financial highlights do not disclose any unitized data.

Derivative Instruments and Hedg

Derivative Instruments and Hedging Activities	12 Months Ended
	Dec. 31, 2021
The Series of Frontier Funds [Member]
Derivative Instruments and Hedging Activities [Line Items]
Derivative Instruments and Hedging Activities	8. Derivative Instruments and Hedging Activities The Series’ primary business is to engage in speculative trading of a diversified portfolio of futures, forwards (including interbank foreign currencies), options contracts and other derivative instruments (including swap contracts). The Series do not enter into or hold positions for hedging purposes as defined under ASC 815, Derivatives and Hedging (“ASC 815”). The detail of the fair value of the Series’ derivatives by instrument types as of December 31, 2021 and 2020 is included in the Condensed Schedules of Investments. See Note 4 for further disclosure related to each Series’ position in swap contracts. There are embedded management fees in transacting these swaps ranging from 1% to 1.5% based on fair value of swaps and the embedded incentive fees ranging from 15% to 25% based on net new trading profits on swaps. The following tables summarize the monthly averages of futures contracts bought and sold for each respective Series of the Trust: For the Year Ended December 31, 2021 Monthly average contracts: Bought Sold Frontier Balanced Fund 652 654 For the Year Ended December 31, 2020 Monthly average contracts: Bought Sold Frontier Balanced Fund 613 612 For the Year Ended December 31, 2019 Monthly average contracts: Bought Sold Frontier Balanced Fund 1,209 1,409 The following tables summarize the trading revenues for the years ended December 31, 2021, 2020 and 2019 by sector: Realized Trading Revenue from Futures, Forwards and Options for the Year Ended December 31, 2021 Type of contract Frontier Balanced Fund Agriculturals $ 191,851 Currencies 96,075 Energies 148,710 Interest rates 108,590 Metals 123,350 Stock indices 204,123 Realized trading income/(loss) (1) $ 872,699 Realized Trading Revenue from Futures, Forwards and Options for the Year Ended December 31, 2020 Type of contract Frontier Balanced Fund Agriculturals $ 147,013 Currencies 90,903 Energies 118,920 Interest rates 59,037 Metals 217,301 Stock indices (34,911 ) Realized trading income/(loss) (1) $ 598,263 Realized Trading Revenue from Futures, Forwards and Options for the Year Ended December 31, 2019 Type of contract Frontier Balanced Fund Agriculturals $ 230,294 Currencies (104,140 ) Energies 124,324 Interest rates (43,735 ) Metals (71,367 ) Stock indices 151 Realized trading income/(loss) (1) $ 135,527 (1) Amounts recorded in the Statements of Operations under Net realized gain(loss) on futures forwards and options. Net Change in Open Trade Equity from Futures, Forwards and Options for the Year Ended December 31, 2021 Type of contract Frontier Balanced Fund Agriculturals $ (13,842 ) Currencies 11,977 Energies (14,160 ) Interest rates (37,684 ) Metals (28,136 ) Stock indices (7,461 ) Change in unrealized trading income/(loss) (1) $ (89,306 ) Net Change in Open Trade Equity from Futures, Forwards and Options for the Year Ended December 31, 2020 Type of contract Frontier Balanced Fund Agriculturals $ 27,115 Currencies 14,158 Energies (25,335 ) Interest rates 4,660 Metals (1,619 ) Stock indices 11,486 Change in unrealized trading income/(loss) (1) $ 30,465 Net Change in Open Trade Equity from Futures, Forwards and Options for the Year Ended December 31, 2019 Type of contract Frontier Balanced Fund Agriculturals $ (37,494 ) Currencies (127,586 ) Energies 9,624 Interest rates (4,922 ) Metals 26,498 Stock indices - Change in unrealized trading income/(loss) (1) $ (133,880 ) (1) Amounts recorded in the Statements of Operations under Net change in open trade equity/(deficit) Certain financial instruments and derivative instruments are eligible for offset in the statements of financial condition under GAAP. The Series’ open trade equity/(deficit), options written, and receivables from futures commissions merchants (each, an “FCM”) are subject to master netting arrangements and collateral arrangements and meet the GAAP guidance to qualify for offset. A master netting arrangement with a counterparty creates a right of offset for amounts due to and from that same counterparty that is enforceable in the event of a default or bankruptcy. The Series’ policy is to recognize amounts subject to master netting arrangements on a net basis on the statements of financial condition. The following tables present gross and net information about the Series’ assets and liabilities subject to master netting arrangements as disclosed on the statements of financial condition as of December 31, 2021 and 2020. As of December 31, 2021 Gross Amounts of recognized Derivative Assets Gross Amounts offset in the Statements of Financial Condition Net Amounts Presented in the Statements of Financial Condition Frontier Balanced Fund Open Trade Equity/(Deficit) $ 2,118,427 $ (2,103,591 ) $ 14,836 As of December 31, 2020 Gross Amounts of recognized Derivative Assets Gross Amounts offset in the Statements of Financial Condition Net Amounts Presented in the Statements of Financial Condition Frontier Balanced Fund Open Trade Equity/(Deficit) $ 814,743 $ (714,303 ) $ 100,440
Frontier Funds [Member]
Derivative Instruments and Hedging Activities [Line Items]
Derivative Instruments and Hedging Activities	8. Derivative Instruments and Hedging Activities The Trust’s primary business is to engage in speculative trading of a diversified portfolio of futures, forwards (including interbank foreign currencies), options contracts and other derivative instruments (including swap contracts). The Trust does not enter into or hold positions for hedging purposes as defined under ASC 815. The detail of the fair value of the Trust’s derivatives by instrument types as of December 31, 2021 and 2020 is included in the Consolidated Condensed Schedules of Investments. See Note 4 for further disclosure related to the Trust’s positions in swap contracts. There are embedded management fees in transacting these swaps ranging from 1% to 1.5% based on fair value of swaps and the embedded incentive fees ranging from 15% to 25% based on net new trading profits on swaps. For the years ended December 31, 2021, 2020 and 2019, the monthly average of futures, forwards and options contracts bought was approximately 652, 613, and 1,321 respectively and the monthly average of futures, forwards, and options contracts sold was approximately 654, 612, and 1,515, respectively. The following tables summarize the trading revenues for the years ended December 31, 2021, 2020 and 2019 by contract type: Realized Trading Revenue from Futures, Forwards and Options for the Year Ended December 31, 2021 Type of contract Agriculturals $ 191,851 Currencies 96,075 Energies 148,710 Interest rates 108,590 Metals 123,350 Stock indices 204,123 Realized trading income/(loss) (1) $ 872,699 Realized Trading Revenue from Futures, Forwards and Options for the Year Ended December 31, 2020 Type of contract Agriculturals $ 147,013 Currencies 90,903 Energies 118,920 Interest rates 59,037 Metals 217,301 Stock indices (34,911 ) Realized trading income/(loss) (1) $ 598,263 Realized Trading Revenue from Futures, Forwards and Options for the Year Ended December 31, 2019 Type of contract Agriculturals $ 215,822 Currencies (553,764 ) Energies (430,890 ) Interest rates 273,302 Metals (691,581 ) Stock indices (34,113 ) Realized trading income/(loss) (1) $ (1,221,224 ) (1) Amounts recorded in the Statements of Operations under Net realized gain(loss) on futures forwards and options. Net Change in Open Trade Equity from Futures, Forwards and Options for the Year Ended December 31, 2021 Type of contract Agriculturals $ (13,842 ) Currencies 11,977 Energies (14,160 ) Interest rates (37,684 ) Metals (28,136 ) Stock indices (7,461 ) Change in unrealized trading income/(loss) (1) $ (89,306 ) Net Change in Open Trade Equity from Futures, Forwards and Options for the Year Ended December 31, 2020 Type of contract Agriculturals $ 27,115 Currencies 14,158 Energies (25,335 ) Interest rates 4,660 Metals (1,619 ) Stock indices 11,486 Change in unrealized trading income/(loss) (1) $ 30,465 Net Change in Open Trade Equity from Futures, Forwards and Options for the Year Ended December 31, 2019 Type of contract Metals $ (92,782 ) Currencies 100,545 Energies 221,904 Interest rates (231,584 ) Agriculturals 516,390 Stock indices 54,311 Change in unrealized trading income/(loss) (1) $ 568,784 (1) Amounts recorded in the Statements of Operations under Net realized gain(loss) on futures forwards and options. Certain financial instruments and derivative instruments are eligible for offset in the statements of financial condition under GAAP. The Trust’s open trade equity/(deficit), options written, and receivables from futures commission merchants (each, an “FCM”) are subject to master netting arrangements and collateral arrangements and meet the GAAP guidance to qualify for offset. A master netting arrangement with a counterparty creates a right of offset for amounts due to and from that same counterparty that is enforceable in the event of a default or bankruptcy. The Trust’s policy is to recognize amounts subject to master netting arrangements on a net basis on the consolidated statements of financial condition. The following tables present gross and net information about the Trust’s assets and liabilities subject the master netting arrangements as disclosed on the consolidated statements of financial condition as of December 31, 2021 and 2020: As of December 31, 2021 Gross Amounts of recognized Derivative Assets Gross Amounts offset in the Statements of Financial Condition Net Amounts Presented in the Statements of Financial Condition Open Trade Equity/(Deficit) $ 2,118,427 $ (2,103,591 ) $ 14,836 As of December 31, 2020 Gross Amounts of recognized Derivative Assets Gross Amounts offset in the Statements of Financial Condition Net Amounts Presented in the Statements of Financial Condition Open Trade Equity/(Deficit) $ 814,743 $ (714,303 ) $ 100,440

Trading Activities and Related

Trading Activities and Related Risks	12 Months Ended
	Dec. 31, 2021
The Series of the Frontier Funds [Member]
Trading Activities and Related Risks [Line Items]
Trading Activities and Related Risks	9. Trading Activities and Related Risks The purchase and sale of futures and options on futures contracts require margin deposits with FCMs. Additional deposits may be necessary for any loss on contract value. The CEA requires an FCM to segregate all customer transactions and assets from the FCM’s proprietary activities. A customer’s cash and other property (for example, U.S. treasury bills) deposited with an FCM are considered commingled with all other customer funds subject to the FCM’s segregation requirements. In the event of an FCM’s insolvency, recovery may be limited to a pro rata share of segregated funds available. It is possible that the recovered amount could be less than the total of cash and other property deposited. The term “off-balance sheet risk” refers to an unrecorded potential liability that, even though it does not appear on the statements of financial condition, may result in future obligation or loss in excess of the amount paid by the Series for a particular investment. Each Trading Company expects to trade in futures, options, forward and swap contracts and will therefore be a party to financial instruments with elements of off-balance sheet market and credit risk. In entering into these contracts, there exists a market risk that such contracts may be significantly influenced by market conditions, such as interest rate volatility, resulting in such contracts being less valuable. If the markets should move against all of the futures positions held by a Trading Company in respect of any Series at the same time, and if the Trading Advisor(s) of such Trading Company are unable to offset such futures interests positions, such Trading Company could lose all of its assets and the holders of Units of such Series would realize a 100% loss. The Managing Owner will seek to minimize market risk through real-time monitoring of open positions and the level of diversification of each Trading Advisor’s portfolio. It is anticipated that any Trading Advisor’s margin-to-equity ratio will typically not exceed approximately 35% although the actual ratio could be higher or lower from time to time. In addition to market risk, trading futures, forward and swap contracts entails credit risk that a counterparty will not be able to meet its obligations to a Trading Company. The counterparty for futures contracts traded in the United States and on most foreign exchanges is the clearinghouse associated with such exchange. In general, clearinghouses are backed by the corporate members of the clearinghouse who are required to share any financial burden resulting from the non-performance by one of their members and, as such, should significantly reduce this credit risk. In cases where the clearinghouse is not backed by the clearing members, like some foreign exchanges, it is normally backed by a consortium of banks or other financial institutions. Some non-U.S. exchanges, in contrast to U.S. exchanges, are principals’ markets in which performance is the responsibility only of the individual counterparty with whom the Trading Company has entered into the transaction, and not of the exchange or clearing corporation. In these kinds of markets, there is risk of bankruptcy or other failure or refusal to perform by the counterparty. In the case of forward contracts traded on the interbank market and swaps, neither is traded on exchanges. The counterparty is generally a single bank or other financial institution, rather than a group of financial institutions; thus there may be a greater counterparty credit risk. The Managing Owner expects the Trading Advisors to trade only with those counterparties which it believes to be creditworthy. All positions of each Trading Company will be valued each day on a mark-to-market basis. There can be no assurance that any clearing member, clearing house or other counterparty will be able to meet its obligations to any Trading Company. The Managing Owner has established procedures to actively monitor and minimize market and credit risks. The Limited Owners bear the risk of loss only to the extent of the market value of their respective investments and, in certain specific circumstances, distributions and redemptions received.
Frontier Funds [Member]
Trading Activities and Related Risks [Line Items]
Trading Activities and Related Risks	8. Trading Activities and Related Risks The purchase and sale of futures and options on futures contracts require margin deposits with FCMs. Additional deposits may be necessary for any loss on contract value. The CEA requires an FCM to segregate all customer transactions and assets from the FCM’s proprietary activities. A customer’s cash and other property (for example, U.S. treasury bills) deposited with an FCM are considered commingled with all other customer funds subject to the FCM’s segregation requirements. In the event of an FCM’s insolvency, recovery may be limited to a pro rata share of segregated funds available. It is possible that the recovered amount could be less than the total of cash and other property deposited. The term “off-balance sheet risk” refers to an unrecorded potential liability that, even though it does not appear on the statements of financial condition, may result in future obligation or loss in excess of the amount paid by the Series for a particular investment. Each Trading Company and Galaxy Plus entity expects to trade in futures, options, forward and swap contracts and will therefore be a party to financial instruments with elements of off-balance sheet market and credit risk. In entering into these contracts, there exists a market risk that such contracts may be significantly influenced by market conditions, such as interest rate volatility, resulting in such contracts being less valuable. If the markets should move against all of the futures positions held by a Trading Company or Galaxy Plus entity in respect of any Series at the same time, and if the Trading Advisor(s) of such Trading Company or Galaxy Plus entity are unable to offset such futures interests positions, such Trading Company or Galaxy Plus entity could lose all of its assets and the holders of Units of such Series would realize a 100% loss. The Managing Owner will seek to minimize market risk through real-time monitoring of open positions and the level of diversification of each Trading Advisor’s portfolio. It is anticipated that any Trading Advisor’s margin- to-equity ratio will typically not exceed approximately 35% although the actual ratio could be higher or lower from time to time. In addition to market risk, trading futures, forward and swap contracts entails credit risk that a counterparty will not be able to meet its obligations to a Trading Company or Galaxy Plus entity. The counterparty for futures contracts traded in the United States and on most foreign exchanges is the clearinghouse associated with such exchange. In general, clearinghouses are backed by the corporate members of the clearinghouse who are required to share any financial burden resulting from the non- performance by one of their members and, as such, should significantly reduce this credit risk. In cases where the clearinghouse is not backed by the clearing members, like some foreign exchanges, it is normally backed by a consortium of banks or other financial institutions. Some non-U.S. exchanges, in contrast to U.S. exchanges, are principals’ markets in which performance is the responsibility only of the individual counterparty with whom the Trading Company has entered into the transaction, and not of the exchange or clearing corporation. In these kinds of markets, there is risk of bankruptcy or other failure or refusal to perform by the counterparty. In the case of forward contracts traded on the interbank market and swaps, neither is traded on exchanges. The counterparty is generally a single bank or other financial institution, rather than a group of financial institutions; thus there may be a greater counterparty credit risk. The Managing Owner expects the Trading Advisors to trade only with those counterparties which it believes to be creditworthy. All positions of each Trading Company will be valued each day on a mark-to-market basis. There can be no assurance that any clearing member, clearinghouse or other counterparty will be able to meet its obligations to any Trading Company. The Managing Owner has established procedures to actively monitor and minimize market and credit risks. The Limited Owners bear the risk of loss only to the extent of the market value of their respective investments and, in certain specific circumstances, distributions and redemptions received.

Indemnifications and Guarantees

Indemnifications and Guarantees noted in Management Discussion and Analysis	12 Months Ended
	Dec. 31, 2021
The Series of Frontier Funds [Member]
Indemnifications and Guarantees noted in Management Discussion and Analysis [Line Items]
Indemnifications and Guarantees noted in Management Discussion and Analysis	10. Indemnifications and Guarantees noted in Management Discussion and Analysis The Trust has entered into agreements, which provide for the indemnification of futures clearing brokers, and commodity trading advisers, among others, against losses, costs, claims and liabilities arising from the performance of their individual obligations under such agreements, except for gross negligence, bad faith or willful misconduct. The Trust has had no prior claims or payments pursuant to these agreements. The Trust’s individual maximum exposure under these arrangements is unknown, as this would involve future claims that may be made against the Trust that have not yet occurred. However, based on experience the Trust expects the risk of loss to be remote. Maximum exposure is unfulfilled obligations of the Series up to the amount of equity at risk with the custodian of the referenced Series as allocated from the Trading Company. The Series have not recorded any liability for the indemnifications in the accompanying financial statements as it expects any possibility of losses to be remote.
Frontier Funds [Member]
Indemnifications and Guarantees noted in Management Discussion and Analysis [Line Items]
Indemnifications and Guarantees noted in Management Discussion and Analysis	9. Indemnifications and Guarantees The Trust has entered into agreements, which provide for the indemnification of futures clearing brokers, and commodity trading advisers, among others, against losses, costs, claims and liabilities arising from the performance of their individual obligations under such agreements, except for gross negligence, bad faith or willful misconduct. The Trust has had no prior claims or payments pursuant to these agreements. The Trust’s individual maximum exposure under these arrangements is unknown, as this would involve future claims that may be made against the Trust that have not yet occurred. However, based on experience the Trust expects the risk of loss to be remote. Maximum exposure is unfulfilled obligations of the Trust up to the amount of equity at risk Morgan Stanley & Co. LLC. The Trust has not recorded any liability for the guarantees in the accompanying financial statements as it expects any possibility of losses to be remote. The Trust has not recorded any liability for the indemnifications in the accompanying financial statements as it expects any possibility of losses to be remote.

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2021
The Series of the Frontier Funds [Member]
Subsequent Events [Line Items]
Subsequent Events	11. Subsequent Events The Managing Owner evaluates events that occur after the balance sheet date but before and up until financial statements are available to be issued. The Managing Owner has assessed the subsequent events through the date that the financial statements were issued and has determined that, except as set forth below, there were no subsequent events requiring adjustment to or disclosure in the financial statements. Effective January 1, 2022, John Locke Investments SA accessed through Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC ceased to act as a commodity trading advisor to the Trust. Effective January 1, 2022, Quantica Capital AG accessed through Galaxy Plus Fund – Quantica Managed Futures Feeder Fund (507) LLC became a new commodity trading advisor for Frontier Balanced Fund, Frontier Diversified Fund, Frontier Masters Fund and Frontier Select Fund. From January 1, 2022 through April 15, 2022, Frontier Balanced Fund, Frontier Diversified Fund, Frontier Heritage Fund, Frontier Long/Short Commodity Fund, Frontier Masters Fund, Frontier Select Fund and Frontier Global Fund paid $677,832, $68,760, $155,511, $92,671, $192,773, $37,562 and $309,109, respectively, in redemptions.
Frontier Funds [Member]
Subsequent Events [Line Items]
Subsequent Events	10. Subsequent Events The Managing Owner evaluates events that occur after the balance sheet date but before and up until financial statements are available to be issued. The Managing Owner has assessed the subsequent events through the date that the financial statements were issued and has determined that, except as set forth below, there were no subsequent events requiring adjustment to or disclosure in the financial statements. From January 01, 2022 through April 15, 2022, the Trust paid $1,534,218 in redemptions.

Accounting Policies, by Policy

Accounting Policies, by Policy (Policies)	12 Months Ended
	Dec. 31, 2021
The Series of Frontier Funds [Member]
Accounting Policies, by Policy (Policies) [Line Items]
Basis of Presentation	Basis of Presentation
Consolidation	Consolidation Galaxy Plus entities are co-mingled investment vehicles. In addition to the Series, there are other non-affiliated investors in Galaxy Plus. Subscriptions and redemptions by these non-affiliated investors will have a direct impact on the Series ownership percentage in Galaxy Plus. It is expected that ownership percentage will fluctuate (sometimes significantly) on a week-by-week basis which could also result in frequent changes in the consolidating Series. Such fluctuations make consolidating the financial statements of the Galaxy Plus entities both impractical and misleading. Non-consolidation of these Galaxy Plus entities presents a more useful financial statement for the readers. As such, management has decided that presenting Galaxy Plus entities on a non-consolidated basis as investments in other investments companies (a “fund of funds” approach) is appropriate and preferable to the users of these financial statements. Refer to Note 5 for additional disclosures related to these private investment companies. As of December 31, 2021, and 2020, the consolidated statements of financial condition of Frontier Balanced Fund included the assets and liabilities of its wholly owned interests in Frontier Trading Company I, LLC. For the year ended December 31, 2021, 2020 and 2019 the consolidated statements of operations of Frontier Balanced Fund included the earnings of its wholly owned interest in Frontier Trading Company I, LLC and Frontier Trading Company XXXIV, LLC. As of December 31, 2021, and 2020, the consolidated statements of financial condition of Frontier Long/Short Commodity Fund included the assets and liabilities of its wholly owned Trading Company, Frontier Trading Company XXXVII, LLC. For the years ended December 31, 2021, 2020 and 2019, the consolidated statements of operations of Frontier Long/Short Commodity Fund included the earnings of its wholly owned Trading Company listed above. As of December 31, 2021, and 2020, the consolidated statements of financial condition of Frontier Diversified Fund included the assets and liabilities of its wholly owned Frontier Trading Company XXXV, LLC. For the years ended December 31, 2021, 2020, and 2019 the consolidated statements of operations of Frontier Diversified Fund included the earnings of its wholly owned Trading Company listed above. As of and for the years ended December 31, 2021, 2020, and 2019, the consolidated statements of financial condition and statement of operations of Frontier Heritage Fund included the assets and liabilities, and earnings, respectively, of its majority owned Trading Company, Frontier Trading Company XXXIX, LLC. For the year ended December 31, 2021, 2020 and 2019, the consolidated statements of operations of Frontier Select Fund included the earnings of its majority owned Trading Company. For the year ended December 31, 2019 and 2018, the consolidated statements of operations of Frontier Global Fund include the earnings of its majority owned Trading Company, Frontier Trading Company II, LLC from January 1, 2017 through December 14, 2017. As of and for the years ended December 31, 2019, 2018 and 2017, Frontier Master Fund did not have a majority interest in any Trading Company. Each of the Series has invested in Frontier Trading Company XXXVIII, LLC on the same basis as its ownership in the cash pool. Frontier Trading Company XXXVIII, LLC’s assets, liabilities and earnings are allocated to all of the Series of the Trust based on their proportionate share of the cash pool. Each Series investment in the Frontier Trading Company XXXVIII, LLC is listed under Investments in unconsolidated trading companies, at fair value on the Statements of Financial Condition.
Use of Estimates	Use of Estimates—
Cash and Cash Equivalents	Cash and Cash Equivalents—
Interest Income	Interest Income—
U.S. Treasury Securities	U.S. Treasury Securities— Fair Value Measurements and Disclosures (“
Receivable from Futures Commission Merchants	Receivable from Futures Commission Merchants
Investment Transactions	Investment Transactions— Balance Sheet (“ASC 210” Balance Sheet (Topic 210 Any change in net unrealized gain or loss from the preceding period is reported in the statements of operations. Fair value of exchange-traded contracts is based upon exchange settlement prices. Fair value of non-exchange-traded contracts is based on third party quoted dealer values on the interbank market. For U.S. Treasury securities, interest is recognized in the period earned and the instruments are marked-to-market daily based on third party information. Transaction costs are recognized as incurred and reflected separately in the statements of operations.
Purchase and Sales of Private Investment Companies	Purchase and Sales of Private Investment Companies
Foreign Currency Transactions	Foreign Currency Transactions—
Allocation of Earnings	Allocation of Earnings— Each Series allocates funds to an affiliated Trading Company, or Companies, of the Trust or unaffiliated Galaxy Plus entity. Each Trading Company allocates all of its daily trading gains or losses to the Series in proportion to each Series’ ownership trading level interest in the Trading Company, adjusted on a daily basis (except for Trading Advisors and other investments such as swaps that are directly allocated to a specific Series). Likewise, trading gains and losses earned and incurred by the Series through their investments in Galaxy Plus entities are allocated to those Series on a daily basis. The allocation of gains and losses in Galaxy Plus entities are based on each Series pro-rata shares of the trading level of that entity which is updated at the beginning of each month or more frequently if there is a subscription or redemption activity in the entity. The value of all open contracts and cash held at clearing brokers is similarly allocated to the Series in proportion to each Series’ funds allocated to the Trading Companies or Galaxy Plus entities.
Investments and Swaps	Investments and Swaps
Income Taxes	Income Taxes Income Taxes The 2018 through 2021 tax years generally remain subject to examination by U.S. federal and most state tax authorities. In the opinion of the Managing Owner, (i) the Trust, with respect to the Series, is treated as a partnership for federal income tax purposes and, assuming that at least 90% of the gross income of the Trust constitutes “qualifying income” within the meaning of Section 7704(d) of the Code, (ii) the Trust is not a publicly traded partnership treated as a corporation, and (iii) the discussion set forth in the Prospectus under the heading “U.S. Federal Income Tax Consequences” correctly summarizes the material federal income tax consequences as of the date of the Prospectus to potential U.S. Limited Owners of the purchase, ownership and disposition of Units of the Trust.
Fees and Expenses	Fees and Expenses
Incentive Fee (rebate)	Incentive Fee (rebate)
Service Fees	Service Fees Each Series is charged service fees as outlined above. In some cases, amounts paid to selling agents might be less than the amount charged to the Series. When this occurs, the service fee is rebated back to the investor in the form of additional units. During 2019, 2020 and 2021, the Series were not allowed to issue additional units. The Managing Owner has determined that the purchase of additional units of the relevant Series will commence in 2022 when the Series are allowed to sell shares again. As such, the Managing Owner has calculated the amounts for additional units of the relevant series which will be purchased and classified such amounts as Subscriptions in advance for service fee rebates of $22,650, $393, $31,725, $369,341, $21,076, $158,810 and $69,814 for the Frontier Diversified, Long/Short Commodity, Masters, Balanced, Select, Global and Heritage Funds, respectively, as of December 31, 2021. These service fees are part of the offering costs of the Trust, with respect to the Series, which include registration and filing fees, legal and blue sky expenses, accounting and audit, printing, marketing support and other offering costs which are borne by the Managing Owner. With respect to the service fees, the initial service fee (for the first 12 months) relating to a purchase of Class 1 and Class 1a Units by an investor is prepaid by the Managing Owner to the relevant selling agent in the month following such purchase and is reimbursed for such payment by the Series monthly in arrears in an amount based upon a corresponding percentage of NAV, calculated daily. Consequently, the Managing Owner bears the risk of the downside and enjoys the benefit of the upside potential of any difference between the amount of the initial service fee prepaid by it and the amount of the reimbursement thereof, which may result from variations in NAV over the following 12 months. Frontier Masters Fund Class 1 was closed as of April 1, 2021, and Frontier Diversified Fund Class 1 was closed as of July 21, 2021.
Pending Owner Additions	Pending Owner Additions—
Owner redemptions payable	Owner redemptions payable—
Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements—
Subsequent Events	Subsequent Events—The Series, follows the provisions of ASC 855, Subsequent Events
Frontier Funds [Member]
Accounting Policies, by Policy (Policies) [Line Items]
Basis of Presentation	Basis of Presentation
Consolidation	Consolidation Galaxy Plus entities are co-mingled investment vehicles. In addition to the Trust, there are other non-affiliated investors in Galaxy Plus. Subscriptions and redemptions by these non-affiliated investors will have a direct impact on the Trust ownership percentage in Galaxy Plus. It is expected that ownership percentage will fluctuate (sometimes significantly) on a week by week basis which could also result in frequent changes in the consolidating Series. Such fluctuations make consolidating the financial statements of the Galaxy Plus entities both impractical and misleading. Non-consolidation of these Galaxy Plus entities presents a more useful financial statement for the readers. As such, management has decided that presenting Galaxy Plus entities on a non-consolidated basis as investments in other investments companies (a “fund of funds” approach) is appropriate and preferable to the users of these financial statements. Refer to Note 5 for additional disclosures related to these private investment companies.
Use of Estimates	Use of Estimates—
Cash and Cash Equivalents	Cash and Cash Equivalents—
Interest Income	Interest Income—
U.S. Treasury Securities	U.S. Treasury Securities— Fair Value Measurements and Disclosures (“
Receivable from Futures Commission Merchants	Receivable from Futures Commission Merchants
Investment Transactions	Investment Transactions— Balance Sheet (“ASC 210” Balance Sheet (Topic 210 Any change in net unrealized gain or loss from the preceding period is reported in the consolidated statements of operations. Fair value of exchange-traded contracts is based upon exchange settlement prices. Fair value of non-exchange-traded contracts is based on third party quoted dealer values on the interbank market. For U.S. Treasury securities, interest was recognized in the period earned and the instruments were marked-to-market daily based on third party information. Transaction costs are recognized as incurred and reflected separately in the consolidated statements of operations.
Purchase and Sales of Private Investment Companies	Purchase and Sales of Private Investment Companies
Foreign Currency Transactions	Foreign Currency Transactions—
Allocation of Earnings	Allocation of Earnings— Each Series allocates funds to an affiliated Trading Company, or Companies, of the Trust, or unaffiliated Galaxy Plus entity. Each Trading Company allocates all of its daily trading gains or losses to the Series in proportion to each Series’ ownership trading level interest in the Trading Company, adjusted on a daily basis (except for Trading Advisors and other investments such as swaps that are directly allocated to a specific series). Likewise, trading gains and losses earned and incurred by the Series through their investments in Galaxy Plus entities are allocated to those Series on a daily basis. The allocation of gains and losses in Galaxy Plus entities are based on each Series pro-rata shares of the trading level of that entity which is updated at the beginning of each month or more frequently if there is a subscription or redemption activity in the entity. The value of all open contracts and cash held at clearing brokers is similarly allocated to the Series in proportion to each Series’ funds allocated to the Trading Companies or Galaxy Plus entities.
Investments and Swaps	Investments and Swaps—
Income Taxes	Income Taxes Income Taxes The 2018 through 2021 tax years generally remain subject to examination by U.S. federal and most state tax authorities. In the opinion of the Managing Owner, (i) the Trust is treated as a partnership for Federal income tax purposes and, assuming that at least 90% of the gross income of the Trust constitutes “qualifying income” within the meaning of Section 7704(d) of the Code, (ii) the Trust is not a publicly traded partnership treated as a corporation, and (iii) the discussion set forth in the Prospectus under the heading “U.S. Federal Income Tax Consequences” correctly summarizes the material Federal income tax consequences as of the date of the Prospectus to potential U.S. Limited Owners of the purchase, ownership and disposition of Series Units of the Trust.
Fees and Expenses	Fees and Expenses—
Incentive Fee (rebate)	Incentive Fee (rebate)—
Service Fees	Service Fees Each Series is charged service fees as outlined above. In some cases, amounts paid to selling agents might be less than the amount charged to the Series. When this occurs, the service fee is rebated back to the investor in the form of additional units. During 2021, 2020 and 2019, the Series were not allowed to issue additional units. The Managing Owner has determined that the purchase of additional units of the relevant Series will commence in 2022 when the Series are allowed to sell shares again. As such, the Managing Owner has calculated the amounts for additional units of the relevant series which will be purchased and classified such amounts as Subscriptions in advance for service fee rebates of $673,809 and $638,962 as of December 31, 2021 and December 31, 2020, respectiv These service fees are part of the offering costs of the Trust, which include registration and filing fees, legal and blue1 sky expenses, accounting and audit, printing, marketing support and other offering costs which are borne by the Managing Owner. With respect to the service fees, the initial service fee (for the first 12 months) relating to a purchase of Class 1 and Class 1a Units by an investor is prepaid by the Managing Owner to the relevant selling agent in the month following such purchase and is reimbursed for such payment by the Series monthly in arrears in an amount based upon a corresponding percentage of NAV, calculated daily. Consequently, the Managing Owner bears the risk of the downside and enjoys the benefit of the upside potential of any difference between the amount of the initial service fee prepaid by it and the amount of the reimbursement thereof, which may result from variations in NAV over the following 12 months.
Pending Owner Additions	Pending Owner Additions—
Owner redemptions payable	Owner redemptions payable—
Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements—
Subsequent Events	Subsequent Events Subsequent Events

Consolidated Condensed Schedu_2

Consolidated Condensed Schedule of Investments (Tables)	12 Months Ended
	Dec. 31, 2021
Condensed Financial Information Disclosure [Abstract]
Condensed Schedule of investment companies	Frontier Frontier Frontier Description Fair Value % of Total Capital Fair Value % of Total Capital Fair Value % of Total Capital PRIVATE INVESTMENT COMPANIES (2) Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC $ 875,796 28.87 % $ - 0.00 % $ - 0.00 % Galaxy Plus Fund - QIM Feeder Fund (526) LLC 185,705 6.12 % - 0.00 % - 0.00 % Galaxy Plus Fund - Quest Feeder Fund (517) LLC 453,710 14.96 % - 0.00 % - 0.00 % Galaxy Plus Fund - Aspect Feeder Fund (532) LLC 663,002 21.86 % 279,895 39.55 % - 0.00 % Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 386,996 12.76 % 193,269 27.31 % 482,639 38.91 % Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) 273,449 9.02 % 165,212 23.35 % - 0.00 % Galaxy Plus Fund – Volt Diversified Alpha Feeder Fund (550) LLC) - 0.00 % - 0.00 % 252,149 20.33 % Galaxy Plus Fund - LRR Feeder Fund (522) LLC - 0.00 % - 0.00 % 474,234 38.23 % Total Private Investment Companies $ 2,838,658 93.59 % $ 638,376 90.21 % $ 1,209,022 97.48 % INVESTMENT IN UNCONSOLIDATED TRADING COMPANIES (2) Frontier Trading Company XXXVIII, LLC $ 30,788 1.02 % $ 14,270 2.02 % $ 7,541 0.61 % Total Investment in Unconsolidated Trading Companies $ 30,788 1.02 % $ 14,270 2.02 % $ 7,541 0.61 % U.S. TREASURY SECURITIES (1) FACE VALUE Fair Value Fair Value Fair Value FACE VALUE US Treasury Note 6.875% due 08/15/2025 (Cost $142,326) $ 33,274 1.10 % $ 15,422 2.18 % $ 8,148 0.66 % Additional Disclosure on U.S. Treasury Securities Face Value Face Value Face Value US Treasury Note 6.875% due 08/15/2025 (1) $ 27,592 $ 12,789 $ 6,757 Additional Disclosure on U.S. Treasury Securities Cost Cost Cost US Treasury Note 6.875% due 08/15/2025 (1) $ 33,709 $ 15,624 $ 8,255 (1) See Note 2 to the Financial Statements. (2) See Note 5 to the Financial Statements. Frontier Frontier Global Fund Heritage Fund Fair % of Total Capital Fair % of Total Capital Description Value Value) Value Value) PRIVATE INVESTMENT COMPANIES (2) Galaxy Plus Fund - Aspect Feeder Fund (532) LLC $ 2,137,382 101.23 % $ 1,614,360 69.52 % Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC - - 724,414 31.19 % Total Private Investment Companies $ 2,137,382 101.23 % $ 2,338,774 100.71 % INVESTMENT IN UNCONSOLIDATED TRADING COMPANIES (2) Frontier Trading Company XXXVIII, LLC $ 23,818 1.13 % $ 9,087 0.39 % Total Investment in Unconsolidated Trading Companies $ 23,818 1.13 % $ 9,087 0.39 % U.S. TREASURY SECURITIES (1) FACE VALUE Fair Value Fair Value FACE VALUE US Treasury Note 6.875% due 08/15/2025 (Cost $142,326) $ 25,740 1.22 % $ 9,820 0.42 % Additional Disclosure on U.S. Treasury Securities Face Value Face Value US Treasury Note 6.875% due 08/15/2025 (1) $ 21,345 $ 8,143 Additional Disclosure on U.S. Treasury Securities Cost Cost US Treasury Note 6.875% due 08/15/2025 (1) $ 26,077 $ 9,948 Except for those items disclosed, no individual futures, or forwards position constituted greater than 1 percent of Net Asset Value. Accordingly, the number of contracts and expiration dates are not presented. (1) See Note 2 to the Financial Statements. (2) See Note 5 to the Financial Statements. Frontier Frontier Frontier Description Fair Value % of Total Capital Fair Value % of Total Capital Fair Value % of Total Capital PRIVATE INVESTMENT COMPANIES (2) Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC $ 1,066,074 25.49 % $ - 0.00 % $ - 0.00 % Galaxy Plus Fund - QIM Feeder Fund (526) LLC 414,692 9.91 % - 0.00 % - 0.00 % Galaxy Plus Fund - Quest Feeder Fund (517) LLC 672,766 16.08 % - 0.00 % - 0.00 % Galaxy Plus Fund - Aspect Feeder Fund (532) LLC 732,066 17.50 % 486,659 48.98 % - 0.00 % Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 435,119 10.40 % 258,609 26.03 % 272,294 20.73 % Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) 323,886 7.74 % 269,323 27.11 % - 0.00 % Galaxy Plus Fund - LRR Feeder Fund (522) LLC - 0.00 % - 0.00 % 465,759 35.46 % Total Private Investment Companies $ 3,644,603 87.12 % $ 1,014,591 102.12 % $ 738,053 56.19 % INVESTMENT IN UNCONSOLIDATED TRADING COMPANIES (2) Frontier Trading Company XXXVIII, LLC $ 16,669 0.40 % $ 907 0.09 % $ 17,736 1.35 % Total Investment in Unconsolidated Trading Companies $ 16,669 0.40 % $ 907 0.09 % $ 17,736 1.35 % U.S. TREASURY SECURITIES (1) FACE VALUE Fair Value Fair Value Fair Value FACE VALUE 0 $ 427,393 10.22 % $ 23,245 2.34 % $ 454,738 34.63 % Additional Disclosure on U.S. Treasury Securities Face Value Face Value Face Value US Treasury Note 6.875% due 08/15/2025 (1) $ 328,604 $ 17,872 $ 349,629 Additional Disclosure on U.S. Treasury Securities Cost Cost Cost US Treasury Note 6.875% due 08/15/2025 (1) $ 427,509 $ 23,251 $ 454,862 (1) See Note 2 to the Financial Statements. (2) See Note 5 to the Financial Statements. Frontier Global Frontier Fund Heritage Fund Description Fair Value % of Total Capital Fair Value % of Total Capital PRIVATE INVESTMENT COMPANIES (2) Galaxy Plus Fund - Aspect Feeder Fund (532) LLC $ 3,068,656 104.71 % $ 1,539,331 64.53 % Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC - - 828,131 34.72 % Total Private Investment Companies $ 3,068,656 104.71 % $ 2,367,462 99.25 % INVESTMENT IN UNCONSOLIDATED TRADING COMPANIES (2) Frontier Trading Company XXXVIII, LLC $ 1,083 0.04 % $ 2,880 0.12 % Total Investment in Unconsolidated Trading Companies $ 1,083 0.04 % $ 2,880 0.12 % U.S. TREASURY SECURITIES (1) FACE VALUE Fair Value Fair Value FACE VALUE 0 $ 27,742 0.95 % $ 73,847 3.10 % Additional Disclosure on U.S. Treasury Securities Face Value Face Value US Treasury Note 6.875% due 08/15/2025 (1) $ 21,330 $ 56,778 Additional Disclosure on U.S. Treasury Securities Cost Cost US Treasury Note 6.875% due 08/15/2025 (1) $ 27,750 $ 73,867 * Except for those items disclosed, no individual futures, or forwards contract position constituted greater than 1 percent of Net Asset Value. Accordingly, the number of contracts and expiration dates are not presented. (1) See Note 2 to the Financial Statements. (2) See Note 5 to the Financial Statements.
Condensed Schedule of futures contracts and investment companies	Frontier Frontier Balanced Fund Select Fund Description Fair Value % of Total Capital Fair Value % of Total Capital LONG FUTURES CONTRACTS* Various agriculture futures contracts (Far East) $ 10,141 0.11 % $ - 0.00 % Various agriculture futures contracts (Europe) (21,640 ) -0.23 % - 0.00 % Various agriculture futures contracts (U.S.) 51,912 0.55 % - 0.00 % Various base metals futures contracts (U.S.) 20,031 0.21 % - 0.00 % Various currency futures contracts (Europe) 1,994 0.02 % - 0.00 % Various currency futures contracts (Far East) 819 0.01 % - 0.00 % Various currency futures contracts (Latin America) 6,710 0.07 % - 0.00 % Various currency futures contracts (U.S.) (9,800 ) -0.10 % - 0.00 % Various energy futures contracts (U.S.) 34 0.00 % - 0.00 % Various interest rates futures contracts (Europe) (718,038 ) -7.55 % - 0.00 % Various interest rates futures contracts (Far East) (10,418 ) -0.11 % - 0.00 % Various interest rates futures contracts (U.S.) (7,281 ) -0.08 % - 0.00 % Various precious metal futures contracts (U.S.) 19,168 0.20 % - 0.00 % Various soft futures contracts (U.S.) 138,674 1.46 % - 0.00 % Various stock index futures contracts (Europe) 1,508 0.02 % - 0.00 % Various stock index futures contracts (Far East) 1,542 0.02 % - 0.00 % Various stock index futures contracts (Oceanic) 1,236 0.01 % - 0.00 % Various stock index futures contracts (Canada) 1,853 0.02 % - 0.00 % Total Long Futures Contracts $ (511,556 ) -5.37 % $ - 0.00 % SHORT FUTURES CONTRACTS* Various agriculture futures contracts (Far East) $ (27,804 ) -0.29 % $ - 0.00 % Various agriculture futures contracts (Europe) 20,105 0.21 % - 0.00 % Various agriculture futures contracts (U.S.) (11,749 ) -0.12 % - 0.00 % Various base metals futures contracts (U.S.) (29,574 ) -0.31 % - 0.00 % Various currency futures contracts (Europe) (18,181 ) -0.19 % - 0.00 % Various currency futures contracts (Far East) (1,110 ) -0.01 % - 0.00 % Various currency futures contracts (Latin America) (21,340 ) -0.22 % - 0.00 % Various currency futures contracts (U.S.) 6,288 0.07 % - 0.00 % Various energy futures contracts (U.S.) (10,792 ) -0.11 % - 0.00 % Various interest rates futures contracts (Europe) 785,677 8.26 % - 0.00 % Various interest rates futures contracts (U.S.) (625 ) -0.01 % - 0.00 % Various precious metal futures contracts (U.S.) (38,573 ) -0.41 % - 0.00 % Various soft futures contracts (U.S.) (110,902 ) -1.17 % - 0.00 % Various stock index futures contracts (Canada) (5,194 ) -0.05 % - 0.00 % Various stock index futures contracts (Europe) (5,157 ) -0.05 % - 0.00 % Various stock index futures contracts (Far East) (2,191 ) -0.02 % - 0.00 % Various stock index futures contracts (Oceanic) (2,217 ) -0.02 % - 0.00 % Various stock index futures contracts (U.S.) (269 ) 0.00 % - 0.00 % Total Short Futures Contracts $ 526,392 5.56 % $ - 0.00 % Total Open Trade Equity (Deficit) $ 14,836 0.19 % $ - 0.00 % PRIVATE INVESTMENT COMPANIES (2) Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC $ 1,890,115 19.88 % $ - 0.00 % Galaxy Plus Fund - QIM Feeder Fund (526) LLC 820,002 8.62 % - 0.00 % Galaxy Plus Fund - Quest Feeder Fund (517) LLC 1,134,963 11.94 % - 0.00 % Galaxy Plus Fund - Aspect Feeder Fund (532) LLC 1,658,225 17.44 % - 0.00 % Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 2,032,209 21.37 % 796,855 56.28 % Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) 1,392,967 14.65 % 577,521 40.79 % Total Private Investment Companies $ 8,928,481 93.90 % $ 1,374,376 97.07 % INVESTMENT IN UNCONSOLIDATED TRADING COMPANIES (2) Frontier Trading Company XXXVIII, LLC $ 34,977 0.37 % $ 9,514 0.67 % Total Investment in Unconsolidated Trading Companies $ 34,977 0.37 % $ 9,514 0.67 % U.S. TREASURY SECURITIES (1) FACE VALUE Fair Value Fair Value FACE VALUE US Treasury Note 6.875% due 08/15/2025 (Cost $142,326) $ 37,801 0.40 % $ 10,282 0.73 % Additional Disclosure on U.S. Treasury Securities Face Value Face Value US Treasury Note 6.875% due 08/15/2025 (1) $ 31,347 $ 8,527 Additional Disclosure on U.S. Treasury Securities Cost Cost US Treasury Note 6.875% due 08/15/2025 (1) $ 38,296 $ 10,417 * Except for those items disclosed, no individual futures, or forwards position constituted greater than 1 percent of Net Asset Value. Accordingly, the number of contracts and expiration dates are not presented. (1) See Note 2 to the Financial Statements. (2) See Note 5 to the Financial Statements. Frontier Frontier Balanced Fund Select Fund Description Fair Value % of Total Capital Fair Value % of Total Capital LONG FUTURES CONTRACTS* Various agriculture futures contracts (Far East) $ 72,005 0.59 % $ - 0.00 % Various agriculture futures contracts (Europe) 9,803 0.08 % - 0.00 % Various agriculture futures contracts (U.S.) 87,496 0.72 % - 0.00 % Various base metals futures contracts (U.S.) 22,858 0.19 % - 0.00 % Various currency futures contracts (Europe) 10,573 0.09 % - 0.00 % Various currency futures contracts (Latin America) 5,833 0.05 % - 0.00 % Various currency futures contracts (U.S.) (100 ) 0.00 % - 0.00 % Various interest rates futures contracts (Europe) 148,949 1.23 % - 0.00 % Various interest rates futures contracts (Far East) 2,882 0.02 % - 0.00 % Various interest rates futures contracts (U.S.) 2,438 0.02 % - 0.00 % Various precious metal futures contracts (U.S.) 28,625 0.24 % - 0.00 % Various soft futures contracts (U.S.) 52,349 0.43 % - 0.00 % Various stock index futures contracts (Far East) 5,312 0.04 % - 0.00 % Total Long Futures Contracts $ 449,023 3.70 % $ - 0.00 % SHORT FUTURES CONTRACTS* Various agriculture futures contracts (Far East) $ (30,963 ) -0.26 % $ - 0.00 % Various agriculture futures contracts (Europe) (10,797 ) -0.09 % - 0.00 % Various agriculture futures contracts (U.S.) (92,738 ) -0.77 % - 0.00 % Various base metals futures contracts (U.S.) (10,289 ) -0.08 % - 0.00 % Various currency futures contracts (Europe) (10,381 ) -0.09 % - 0.00 % Various currency futures contracts (Latin America) 2,512 0.02 % - 0.00 % Various currency futures contracts (U.S.) 2,300 0.02 % - 0.00 % Various interest rates futures contracts (Europe) (127,832 ) -1.06 % - 0.00 % Various interest rates futures contracts (Far East) (2,482 ) -0.02 % - 0.00 % Various interest rates futures contracts (U.S.) 3,656 0.03 % - 0.00 % Various precious metal futures contracts (U.S.) (25,560 ) -0.21 % - 0.00 % Various soft futures contracts (Far East) - 0.00 % - 0.00 % Various soft futures contracts (U.S.) (42,669 ) -0.35 % - 0.00 % Various stock index futures contracts (Far East) (3,340 ) -0.03 % - 0.00 % Total Short Futures Contracts $ (348,583 ) -2.89 % $ - 0.00 % Total Open Trade Equity (Deficit) $ 100,440 0.81 % $ - 0.00 % PRIVATE INVESTMENT COMPANIES (2) Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC $ 2,311,240 19.08 % $ - 0.00 % Galaxy Plus Fund - QIM Feeder Fund (526) LLC 1,581,941 13.06 % - 0.00 % Galaxy Plus Fund - Quest Feeder Fund (517) LLC 982,020 8.11 % - 0.00 % Galaxy Plus Fund - Aspect Feeder Fund (532) LLC 1,600,611 13.22 % - 0.00 % Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 2,612,336 21.57 % 956,968 57.89 % Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) 1,440,104 11.89 % 681,697 41.24 % Total Private Investment Companies $ 10,528,252 86.93 % $ 1,638,665 99.13 % INVESTMENT IN UNCONSOLIDATED TRADING COMPANIES (2) Frontier Trading Company XXXVIII, LLC $ 49,755 0.41 % $ - 0.00 % Total Investment in Unconsolidated Trading Companies $ 49,755 0.41 % $ - 0.00 % U.S. TREASURY SECURITIES (1) FACE VALUE Fair Value Fair Value FACE VALUE 0 $ 1,275,641 10.53 % $ - 0.00 % Additional Disclosure on U.S. Treasury Securities Face Value Face Value US Treasury Note 6.875% due 08/15/2025 (1) $ 980,787 $ - Additional Disclosure on U.S. Treasury Securities Cost Cost US Treasury Note 6.875% due 08/15/2025 (1) $ 1,275,989 $ - * Except for those items disclosed, no individual futures, or forwards position constituted greater than 1 percent of Net Asset Value. Accordingly, the number of contracts and expiration dates are not presented. (1) See Note 2 to the Financial Statements. (2) See Note 5 to the Financial Statements. Description Fair % of Total Capital LONG FUTURES CONTRACTS * Various agriculture futures contracts (Far East) $ 10,141 0.05 % Various agriculture futures contracts (Europe) (21,640 ) -0.11 % Various agriculture futures contracts (U.S.) 51,912 0.26 % Various base metals futures contracts (U.S.) 20,031 0.10 % Various currency futures contracts (Europe) 1,994 0.01 % Various currency futures contracts (Far East) 819 0.00 % Various currency futures contracts (Latin America) 6,710 0.03 % Various currency futures contracts (U.S.) (9,800 ) -0.05 % Various energy futures contracts (U.S.) 34 0.00 % Various interest rates futures contracts (Europe) (718,038 ) -3.53 % Various interest rates futures contracts (Far East) (10,418 ) -0.05 % Various interest rates futures contracts (U.S.) (7,281 ) -0.04 % Various precious metal futures contracts (U.S.) 19,168 0.09 % Various soft futures contracts (U.S.) 138,674 0.68 % Various stock index futures contracts (Europe) 1,508 0.01 % Various stock index futures contracts (Far East) 1,541 0.01 % Various stock index futures contracts (Oceanic) 1,236 0.01 % Various stock index futures contracts (Canada) 1,853 0.01 % Total Long Futures Contracts $ (511,556 ) -2.52 % SHORT FUTURES CONTRACTS * Various agriculture futures contracts (Far East) $ (27,804 ) -0.14 % Various agriculture futures contracts (Europe) 20,105 0.10 % Various agriculture futures contracts (U.S.) (11,749 ) -0.06 % Various base metals futures contracts (U.S.) (29,574 ) -0.15 % Various currency futures contracts (Europe) (18,181 ) -0.09 % Various currency futures contracts (Far East) (1,110 ) -0.01 % Various currency futures contracts (Latin America) (21,340 ) -0.10 % Various currency futures contracts (U.S.) 6,288 0.03 % Various energy futures contracts (U.S.) (10,792 ) -0.05 % Various interest rates futures contracts (Europe) 785,677 3.86 % Various interest rates futures contracts (U.S.) (625 ) 0.00 % Various precious metal futures contracts (U.S.) (38,573 ) -0.19 % Various soft futures contracts (U.S.) (110,902 ) -0.55 % Various stock index futures contracts (Canada) (5,194 ) -0.03 % Various stock index futures contracts (Europe) (5,157 ) -0.03 % Various stock index futures contracts (Far East) (2,191 ) -0.01 % Various stock index futures contracts (Oceanic) (2,217 ) -0.01 % Various stock index futures contracts (U.S.) (269 ) 0.00 % Total Short Futures Contracts $ 526,392 2.57 % Total Open Trade Equity (Deficit) $ 14,836 0.05 % PRIVATE INVESTMENT COMPANIES (3) Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC $ 2,765,907 13.60 % Galaxy Plus Fund - QIM Feeder Fund (526) LLC 1,005,707 4.94 % Galaxy Plus Fund - Quest Fit Feeder Fund (535) LLC 129,995 0.64 % Galaxy Plus Fund - Quest Feeder Fund (517) LLC 1,588,673 7.81 % Galaxy Plus Fund - Aspect Feeder Fund (532) LLC 6,352,866 31.23 % Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 4,616,381 22.70 % Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) 2,409,149 11.84 % Galaxy Plus Fund – Volt Diversified Alpha Feeder Fund (550) LLC) 252,149 1.24 % Galaxy Plus Fund - LRR Feeder Fund (522) LLC 474,234 2.33 % Total Private Investment Companies $ 19,595,064 96.33 % U.S. TREASURY SECURITIES (2) FACE VALUE Fair Value US Treasury Note 6.875% due 08/15/2025 (Cost $142,326) 140,487 0.69 % Total U.S. Treasury Securities $ 140,487 0.69 % * Except for those items disclosed, no individual futures, forwards and option on futures contract position constituted greater than 1 percent of Net Asset Value. Accordingly, the number of contracts and expiration dates are not presented. (1) See Notes to Consolidated Financial Statements, Note 3. (2) See Notes to Consolidated Financial Statements, Note 2. (5) See Notes to Consolidated Financial Statements, Note 2. % of Description Fair (Net Asset LONG FUTURES CONTRACTS * Various agriculture futures contracts (Far East) $ 72,005 0.28 % Various agriculture futures contracts (Europe) 9,803 0.04 % Various agriculture futures contracts (U.S.) 87,496 0.34 % Various base metals futures contracts (U.S.) 22,858 0.09 % Various currency futures contracts (U.S.) (100 ) 0.00 % Various currency futures contracts (Europe) 10,573 0.04 % Various currency futures contracts (Latin America) 5,833 0.02 % Various interest rates futures contracts (Europe) 148,949 0.58 % Various interest rates futures contracts (Far East) 2,882 0.01 % Various interest rates futures contracts (U.S.) 2,438 0.01 % Various precious metal futures contracts (U.S.) 28,625 0.11 % Various soft futures contracts (U.S.) 52,349 0.20 % Various stock index futures contracts (Far East) 5,312 0.02 % Total Long Futures Contracts $ 449,023 1.74 % SHORT FUTURES CONTRACTS * Various agriculture futures contracts (Far East) $ (30,963 ) -0.12 % Various agriculture futures contracts (Europe) (10,797 ) -0.04 % Various agriculture futures contracts (U.S.) (92,738 ) -0.36 % Various base metals futures contracts (U.S.) (10,289 ) -0.04 % Various currency futures contracts (U.S.) 2,300 0.01 % Various currency futures contracts (Europe) (10,381 ) -0.04 % Various currency futures contracts (Latin America) 2,512 0.01 % Various interest rates futures contracts (Europe) (127,832 ) -0.50 % Various interest rates futures contracts (Far East) (2,482 ) -0.01 % Various interest rates futures contracts (U.S.) 3,656 0.01 % Various precious metal futures contracts (U.S.) (25,560 ) -0.10 % Various soft futures contracts (U.S.) (42,669 ) -0.17 % Various stock index futures contracts (Far East) (3,340 ) -0.01 % Total Short Futures Contracts $ (348,583 ) -1.36 % Total Open Trade Equity (Deficit) $ 100,440 0.38 % PRIVATE INVESTMENT COMPANIES (2) Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC $ 3,377,314 13.21 % Galaxy Plus Fund - QIM Feeder Fund (526) LLC 1,996,633 7.81 % Galaxy Plus Fund - Quest Fit Feeder Fund (535) LLC 89,029 0.35 % Galaxy Plus Fund - Quest Feeder Fund (517) LLC 1,654,786 6.47 % Galaxy Plus Fund - Aspect Feeder Fund (532) LLC 7,427,324 29.05 % Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 5,363,456 20.98 % Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) 2,715,008 10.62 % Galaxy Plus Fund - LRR Feeder Fund (522) LLC 465,759 1.82 % Total Private Investment Companies $ 23,089,312 90.31 % U.S. TREASURY SECURITIES FACE VALUE Fair Value FACE VALUE 2,282,606 8.93 % Total U.S. Treasury Securities $ 2,282,606 8.93 % * Except for those items disclosed, no individual futures, forwards and option on futures contract position constituted greater than 1 percent of Net Asset Value. Accordingly, the number of contracts and expiration dates are not presented. (1) See Notes to Consolidated Financial Statements, Note 5.

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2021
The Series of Frontier Funds [Member]
Fair Value Measurements (Tables) [Line Items]
Schedule of financial asset portfolio measured at fair value	December 31, 2021 Practical Level 1 Level 2 Level 3 Total Frontier Diversified Fund Investment in Unconsolidated Trading Companies $ 30,788 $ - $ - $ - $ 30,788 U.S. Treasury Securities - 33,274 - - 33,274 Frontier Masters Fund Investment in Unconsolidated Trading Companies 14,270 - - - 14,270 U.S. Treasury Securities - 15,422 - - 15,422 Frontier Long/Short Commodity Fund Investment in Unconsolidated Trading Companies 7,541 - - - 7,541 U.S. Treasury Securities - 8,148 - - 8,148 Frontier Balanced Fund Investment in Unconsolidated Trading Companies 34,977 - - - 34,977 Open Trade Equity (Deficit) - 14,836 - - 14,836 U.S. Treasury Securities - 37,801 - - 37,801 Frontier Select Fund Investment in Unconsolidated Trading Companies 9,514 - - - 9,514 U.S. Treasury Securities - 10,282 - - 10,282 Frontier Global Fund Investment in Unconsolidated Trading Companies 23,818 - - - 23,818 U.S. Treasury Securities - 25,740 - - 25,740 Frontier Heritage Fund Investment in Unconsolidated Trading Companies 9,087 - - - 9,087 U.S. Treasury Securities - 9,820 - - 9,820 Practical Level 1 Level 2 Level 3 Total Frontier Diversified Fund Investment in Unconsolidated Trading Companies $ 16,669 $ - $ - $ - $ 16,669 U.S. Treasury Securities - 427,393 - - 427,393 Frontier Masters Fund Investment in Unconsolidated Trading Companies 907 - - - 907 U.S. Treasury Securities - 23,245 - - 23,245 Frontier Long/Short Commodity Fund Investment in Unconsolidated Trading Companies 17,736 - - - 17,736 U.S. Treasury Securities - 454,738 - - 454,738 Frontier Balanced Fund Investment in Unconsolidated Trading Companies 49,755 - - - 49,755 Open Trade Equity (Deficit) - 100,440 - - 100,440 U.S. Treasury Securities - 1,275,641 - - 1,275,641 Frontier Global Fund Investment in Unconsolidated Trading Companies 1,083 - - - 1,083 U.S. Treasury Securities - 27,742 - - 27,742 Frontier Heritage Fund Investment in Unconsolidated Trading Companies 2,880 - - - 2,880 U.S. Treasury Securities - 73,847 - - 73,847
Schedule of change in Level 3 assets measured at fair value on recurring basis	Frontier Frontier Long/Short Commodity Fund Balance of recurring Level 3 assets as of January 1, 2020 $ 11,944,753 $ 362,521 Total gains or losses (realized/unrealized): Included in earnings-realized (2,448,166 ) 188,100 Included in earnings-unrealized (3,088,917 ) 44,277 Proceeds from collateral reduction (6,176,555 ) (115,000 ) Sale of investments (7,586,366 ) (594,898 ) Purchase of investments 7,355,251 115,000 Change in ownership allocation - - Transfers in and/or out of Level 3 - - Balance of recurring Level 3 assets as of December 31, 2020 $ - $ - Frontier Frontier Balance of recurring Level 3 assets as of January 1, 2020 $ 6,384,583 $ 2,888,009 Total gains or losses (realized/unrealized): Included in earnings-realized (446,306 ) (97,745 ) Included in earnings-unrealized (1,537,399 ) 197,829 Proceeds from collateral reduction (4,000,000 ) (2,474,937 ) Sale of investments (4,870,025 ) (1,491,965 ) Purchase of investments 4,469,147 978,809 Change in ownership allocation - - Transfers in and/or out of Level 3 - - Balance of recurring Level 3 assets as of December 31, 2020 $ - $ - Frontier Select Fund Balance of recurring Level 3 assets as of January 1, 2020 $ 479,024 Change in fair value of investments in unconsolidated trading companies 95,915 Proceeds from sales of investments of unconsolidated trading companies (574,939 ) Purchases of investments of unconsolidated trading companies - Change in ownership allocation - Transfers in and/or out of Level 3 - Balance of recurring Level 3 assets as of December 31, 2020 $ -
Schedule of total change in unrealized appreciation (depreciation) included in statements of operations attributable to level 3 investments	Frontier Frontier Long/Short Commodity Fund Frontier Frontier Swap Contracts $ (1,537,399 ) $ 44,277 $ (3,088,917 ) $ 197,829 Frontier Investments in Unconsolidated Trading Companies $ (91,989 )
Frontier Funds [Member]
Fair Value Measurements (Tables) [Line Items]
Schedule of financial asset portfolio measured at fair value	December 31, 2021 Level 1 Inputs Level 2 Inputs Level 3 Inputs Fair Value Open Trade Equity (Deficit) $ 14,836 $ - $ - $ 14,836 U.S. Treasury Securities 140,487 - - 140,487 December 31, 2020 Level 1 Inputs Level 2 Inputs Level 3 Inputs Fair Value Open Trade Equity (Deficit) $ 100,440 $ - $ - $ 100,440 U.S. Treasury Securities 2,282,606 - - 2,282,606
Schedule of change in unrealized appreciation (depreciation)	For the Balance of recurring Level 3 assets as of January 1, 2020 $ 21,579,865 Total gains or losses (realized/unrealized): Included in earnings-realized (2,896,106 ) Included in earnings-unrealized (4,384,210 ) Proceeds from collateral reduction (12,674,502 ) Purchase of investments 12,918,207 Sale of investments (14,543,254 ) Transfers in and/or out of Level 3 - Balance of recurring Level 3 assets as of December 31, 2020 $ -

Swap Contracts (Tables)

Swap Contracts (Tables)	12 Months Ended
	Dec. 31, 2021
The Series of Frontier Funds [Member]
Swap Contracts (Tables) [Line Items]
Schedule of Investments in following swap	Frontier Balanced Fund Frontier Diversified Fund Frontier Long/Short Commodity Fund Frontier Heritage Fund Total Return Swap Total Return Swap Total Return Swap Total Return Swap Counterparty Deutsche Bank AG Deutsche Bank AG Deutsche Bank AG Deutsche Bank AG Realized Gain/(Loss) $ (2,448,166 ) $ (446,306 ) $ 188,100 $ (97,745 ) Change in Unrealized Gain/(Loss) $ (3,088,917 ) $ (1,537,399 ) $ 44,277 $ 197,829 Fair Value as of December 31, 2020 $ 0 $ 0 $ 0 $ 0 Advance on swap appreciation $ 0 $ 0 $ 0 $ 0
Frontier Funds [Member]
Swap Contracts (Tables) [Line Items]
Schedule of Investments in following swap	XXXIV Balanced select swap XXXV Diversified select swap XXXVII L/S select swap Brevan Howard Total Return Swap Total Return Swap Total Return Swap Total Return Swap Counterparty Deutsche Bank AG Deutsche Bank AG Deutsche Bank AG Deutsche Bank AG Realized Gain/(Loss) $ (2,448,166 ) $ (446,306 ) $ 188,100 $ (97,745 ) Change in Unrealized Gain/(Loss) $ (3,088,917 ) $ (1,537,399 ) $ 44,277 $ 197,829 Fair Value as of December 31, 2020 $ 0 $ 0 $ 0 $ 0 Advance on swap appreciation $ 0 $ 0 $ 0 $ 0

Investments in Unconsolidated_2

Investments in Unconsolidated Trading Companies and Private Investment Companies (Tables)	12 Months Ended
	Dec. 31, 2021
The Series of Frontier Funds [Member]
Investments in Unconsolidated Trading Companies and Private Investment Companies (Tables) [Line Items]
Schedule of investments in unconsolidated trading companies	As of December 31, 2021 As of December 31, 2020 Percentage of Percentage of Series Total Series Total Capital Invested in Capital Invested in Unconsolidated Trading Companies Fair Value Unconsolidated Trading Companies Fair Value Series Frontier Diversified Series — Frontier Trading Company XXXVIII 1.02 % $ 30,788 0.40 % $ 16,669 Frontier Masters Fund --- Frontier Trading Company XXXVIII 2.02 % $ 14,270 0.09 % $ 907 Frontier Long/Short Commodity Fund --- Frontier Trading Company XXXVIII 0.61 % $ 7,541 1.35 % $ 17,736 Frontier Balanced Fund --- Frontier Trading Company XXXVIII 0.37 % $ 34,977 0.41 % $ 49,755 Frontier Select Fund --- Frontier Trading Companies XXXVIII 0.67 % $ 9,514 0.00 % $ - Frontier Global Fund --- Frontier Trading Company XXXVIII 1.13 % $ 23,818 0.04 % $ 1,083 Frontier Heritage Fund --- Frontier Trading Company XXXVIII 0.39 % $ 9,087 0.12 % $ 2,880
Schedule of private investment companies have certain redemption and liquidity restrictions	Redemptions Redemptions Liquidity Notice Period Permitted Restrictions Frontier Diversified Fund Multi-Strategy Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 24 hours Daily None Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC 24 hours Daily None Trend Following Galaxy Plus Fund - Aspect Feeder Fund (532) LLC Daily None Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC 24 hours Daily None Galaxy Plus Fund - QIM Feeder Fund (526) LLC 24 hours Daily None Galaxy Plus Fund - Quest Feeder Fund (517) LLC 24 hours Daily None Frontier Masters Fund Trend Following Galaxy Plus Fund - Aspect Feeder Fund (532) LLC 24 hours Daily None Multi-Strategy Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 24 hours Daily None Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC 24 hours Daily None Frontier Long/Short Commodity Fund Multi-Strategy Galaxy Plus Fund - LRR Feeder Fund (522) LLC 24 hours Daily None Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 24 hours Daily None Galaxy Plus Fund – Volt Diversified Alpha Feeder Fund (550) LLC 24 hours Daily None Frontier Balanced Fund Multi-Strategy Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC 24 hours Daily None Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 24 hours Daily None Trend Following Galaxy Plus Fund - Aspect Feeder Fund (532) LLC 24 hours Daily None Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC 24 hours Daily None Galaxy Plus Fund - QIM Feeder Fund (526) LLC 24 hours Daily None Galaxy Plus Fund - Quest Feeder Fund (517) LLC 24 hours Daily None Frontier Select Fund Multi-Strategy Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 24 hours Daily None Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC 24 hours Daily None Frontier Global Fund Trend Following Galaxy Plus Fund - Aspect Feeder Fund (532) LLC 24 hours Daily None Frontier Heritage Fund Multi-Strategy Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 24 hours Daily None Trend Following Galaxy Plus Fund - Aspect Feeder Fund (532) LLC 24 hours Daily None
Frontier Funds [Member]
Investments in Unconsolidated Trading Companies and Private Investment Companies (Tables) [Line Items]
Schedule of private investment companies have certain redemption and liquidity restrictions	Redemptions Redemptions Liquidity Notice Period Permitted Restrictions Frontier Funds Multi-Strategy Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC 24 hours Daily None Galaxy Plus Fund - LRR Feeder Fund (522) LLC 24 hours Daily None Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC 24 hours Daily None Galaxy Plus Fund – Volt Diversified Alpha Feeder Fund (550) LLC 24 hours Daily None Trend Following Galaxy Plus Fund - Aspect Feeder Fund (532) LLC 24 hours Daily None Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC 24 hours Daily None Galaxy Plus Fund - QIM Feeder Fund (526) LLC 24 hours Daily None Galaxy Plus Fund - Quest Feeder Fund (517) LLC 24 hours Daily None

Transactions with Affiliates (T

Transactions with Affiliates (Tables) - The Series of Frontier Funds [Member]	12 Months Ended
	Dec. 31, 2021
Transactions with Affiliates (Tables) [Line Items]
Schedule of fees earned by managing owner	For the Year Ended December 31, 2021 Incentive (Rebate) Fees Management Fee Service Fee Trading Fee Frontier Diversified Fund $ - $ - $ 2,118 $ 125,429 Frontier Masters Fund - - 628 52,957 Frontier Long/Short Commodity Fund - - 228 38,961 Frontier Balanced Fund 158,775 18,441 258,209 435,300 Frontier Select Fund - - 46,410 46,943 Frontier Global Fund - - 76,678 140,017 Frontier Heritage Fund - - 68,400 101,631 For the Year Ended December 31, 2020 Incentive (Rebate) Fees Management Fee Service Fee Trading Fee Frontier Diversified Fund $ - $ - $ 14,246 $ 251,203 Frontier Masters Fund - - 1,786 101,300 Frontier Long/Short Commodity Fund - - 381 32,628 Frontier Balanced Fund - 19,600 351,503 580,978 Frontier Select Fund - - 62,144 53,759 Frontier Global Fund - - 100,858 186,591 Frontier Heritage Fund - - 66,761 104,941 For the Year Ended December 31, 2019 Incentive (Rebate) Fees Management Fee Service Fee Trading Fee Frontier Diversified Fund $ - $ 2,668 $ 44,726 $ 493,585 Frontier Masters Fund - 7,665 11,635 213,153 Frontier Long/Short Commodity Fund - - 562 54,334 Frontier Balanced Fund - 22,377 606,359 972,678 Frontier Select Fund - - 102,692 85,589 Frontier Global Fund - 38,679 177,833 278,497 Frontier Heritage Fund - 7,289 84,518 118,979
Schedule of fees payable to managing owner	As of December 31, 2021 Incentive Fees Management Fees Interest Fees Service Fees Trading Fees Frontier Diversified Fund $ - $ - $ - $ 83 $ 9,217 Frontier Masters Fund - - - 43 3,882 Frontier Long/Short Commodity Fund - - 32 19 3,407 Frontier Balanced Fund 54,702 1,431 957 18,314 32,970 Frontier Select Fund - - 196 3,524 3,682 Frontier Global Fund - - 312 4,986 9,533 Frontier Heritage Fund - - 217 4,950 8,307 As of December 31, 2020 Incentive Fees Management Fees Interest Fees Service Fees Trading Fees Frontier Diversified Fund $ - $ - $ - $ 385 $ 12,576 Frontier Masters Fund - - - 70 5,460 Frontier Long/Short Commodity Fund - - 87 18 2,281 Frontier Balanced Fund - 8,854 1,376 21,381 37,894 Frontier Select Fund - - 179 3,709 3,933 Frontier Global Fund - - 326 6,348 11,849 Frontier Heritage Fund - - 139 4,794 7,705
Schedule of interest paid by each series to managing owner	2021 2020 2019 2021 2020 2019 Gross Amount Paid to the Managing Owner Gross Amount Paid to the Managing Owner Gross Amount Paid to the Managing Owner Ratio to Average Net Assets Ratio to Average Net Assets Ratio to Average Net Assets Frontier Diversified Fund Class 1 $ - $ 128,397 $ - 0.00 % 33.62 % 0.00 % Frontier Diversified Fund Class 2 - 791,849 - 0.00 % 29.93 % 0.00 % Frontier Diversified Fund Class 3 - 617,154 - 0.00 % 14.78 % 0.00 % Frontier Masters Fund Class 1 - 219 - 0.00 % 2.00 % 0.00 % Frontier Masters Fund Class 2 - 1,567 - 0.00 % 0.25 % 0.00 % Frontier Long/Short Commodity Fund Class 2 22 27 14 0.06 % 0.07 % 0.02 % Frontier Long/Short Commodity Fund Class 3 659 703 337 0.06 % 0.07 % 0.02 % Frontier Balanced Fund Class 1 8,660 7,387 3,925 0.10 % 0.06 % 0.02 % Frontier Balanced Fund Class 1AP 108 103 64 0.11 % 0.06 % 0.02 % Frontier Balanced Fund Class 2 1,749 1,484 764 0.10 % 0.06 % 0.02 % Frontier Balanced Fund Class 2a 16 17 10 0.02 % 0.01 % 0.00 % Frontier Balanced Fund Class 3a 103 80 32 0.02 % 0.01 % 0.00 % Frontier Select Fund Class 1 2,876 4,514 5,563 0.19 % 0.22 % 0.16 % Frontier Select Fund Class 1AP 20 24 15 0.19 % 0.24 % 0.19 % Frontier Select Fund Class 2 138 173 174 0.18 % 0.23 % 0.16 % Frontier Global Fund Class 1 3,665 3,110 23,787 0.14 % 0.09 % 0.40 % Frontier Global Fund Class 1AP - 28 114 0.00 % 0.10 % 0.33 % Frontier Global Fund Class 2 281 238 1,386 0.14 % 0.09 % 0.35 % Frontier Heritage Fund Class 1 3,669 5,141 5,323 0.16 % 0.23 % 0.19 % Frontier Heritage Fund Class 1AP 14 20 9 0.16 % 0.24 % 0.15 % Frontier Heritage Fund Class 2 373 847 1,088 0.16 % 0.20 % 0.18 % Total $ 22,353 $ 1,563,082 $ 42,605

Financial Highlights (Tables)

Financial Highlights (Tables)	12 Months Ended
	Dec. 31, 2021
The Series of the Frontier Funds [Member]
Financial Highlights (Tables) [Line Items]
Schedule of financial highlights of trust	Frontier Diversified Fund Frontier Masters Fund Frontier Long/Short Commodity Fund Class 1 Class 2 Class 3 Class 1 Class 2 Class 3 Class 2 Class 2a Class 3 Class 3a Per unit operating performance (1) Net asset value, December 31, 2020 $ 72.68 $ 88.95 $ 83.33 $ 55.18 $ 67.54 $ 63.52 $ 85.99 $ 55.29 $ 90.21 $ 58.37 Net operating results: Interest income 0.09 0.11 0.11 0.19 0.27 0.25 0.27 0.17 0.27 0.17 Expenses (4.32 ) (3.28 ) (3.17 ) (6.89 ) (4.56 ) (4.28 ) (2.88 ) (1.74 ) (2.85 ) (1.84 ) Net gain/(loss) on investments, net of non-controlling interests (68.45 )* 3.19 3.28 (48.48 )* 6.92 6.66 6.59 5.04 6.75 5.45 Net income/(loss) (72.68 )* 0.03 0.23 (55.18 )* 2.63 2.63 3.98 3.46 4.17 3.79 Net asset value, December 31, 2021 $ - * $ 88.98 $ 83.56 $ - * $ 70.17 $ 66.15 $ 89.97 $ 58.75 $ 94.38 $ 62.16 Ratios to average net assets Net investment income/(loss) -10.83 % -6.54 % -6.54 % -24.03 % -11.12 % -11.12 % -5.16 % -5.16 % -5.16 % -5.16 % Expenses before incentive fees (3)(4) 11.07 % 6.78 % 6.78 % 24.71 % 11.81 % 11.81 % 5.70 % 5.70 % 5.70 % 5.70 % Expenses after incentive fees (3)(4) 11.07 % 6.78 % 6.78 % 24.71 % 11.81 % 11.81 % 5.70 % 5.70 % 5.70 % 5.70 % Total return before incentive fees (2) 5.06 %* 0.03 % 0.28 % 4.59 %* 3.89 % 4.14 % 4.63 % 6.25 % 4.63 % 6.49 % Total return after incentive fees (2) 5.06 %* 0.03 % 0.28 % 4.59 %* 3.89 % 4.14 % 4.63 % 6.25 % 4.63 % 6.49 % Frontier Balanced Fund Frontier Select Fund Class 1 Class 1AP Class 2 Class 2a Class 3a Class 1 Class 1AP Class 2 Per unit operating performance (1) Net asset value, December 31, 2020 $ 79.93 $ 96.81 $ 130.54 $ 113.20 $ 112.81 $ 58.55 $ 70.99 $ 94.20 Net operating results: Interest income 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Expenses (7.39 ) (6.40 ) (7.92 ) (7.83 ) (6.75 ) (3.87 ) (2.22 ) (2.95 ) Net gain/(loss) on investments, net of non-controlling interests 10.28 12.97 16.78 15.61 14.51 8.71 10.44 13.86 Net income/(loss) 2.89 6.57 8.86 7.78 7.76 4.84 8.22 10.90 Net asset value, December 31, 2021 $ 82.82 $ 103.38 $ 139.40 $ 120.98 $ 120.57 $ 63.39 $ 79.21 $ 105.10 Ratios to average net assets Net investment income/(loss) -15.38 % -9.53 % -9.53 % -9.53 % -9.53 % -11.80 % -5.79 % -5.79 % Expenses before incentive fees (3)(4) 13.99 % 8.14 % 8.14 % 8.14 % 8.14 % 11.80 % 5.79 % 5.79 % Expenses after incentive fees (3)(4) 15.38 % 9.53 % 9.53 % 9.53 % 9.53 % 11.80 % 5.79 % 5.79 % Total return before incentive fees (2) 5.01 % 8.18 % 8.18 % 8.27 % 8.27 % 8.27 % 11.58 % 11.57 % Total return after incentive fees (2) 3.61 % 6.79 % 6.79 % 6.87 % 6.88 % 8.27 % 11.58 % 11.57 % Frontier Global Fund Frontier Heritage Fund Class 1 Class 2 Class 1 Class 1AP Class 2 Per unit operating performance (1) Net asset value, December 31, 2020 $ 110.90 $ 167.56 $ 96.10 $ 116.50 $ 155.92 Net operating results: Interest income 0.00 0.00 0.00 0.00 0.00 Expenses (9.45 ) (8.67 ) (7.58 ) (5.34 ) (7.16 ) Net gain/(loss) on investments, net of non-controlling interests 8.00 11.51 14.91 18.03 24.16 Net income/(loss) (1.45 ) 2.84 7.33 12.69 16.99 Net asset value, December 31, 2021 $ 109.45 $ 170.40 $ 103.43 $ 129.19 $ 172.91 Ratios to average net assets Net investment income/(loss) -15.46 % -9.73 % -14.26 % -8.18 % -8.18 % Expenses before incentive fees (3)(4) 15.46 % 9.73 % 14.26 % 8.18 % 8.18 % Expenses after incentive fees (3)(4) 15.46 % 9.73 % 14.26 % 8.18 % 8.18 % Total return before incentive fees (2) -1.31 % 1.70 % 7.62 % 10.89 % 10.90 % Total return after incentive fees (2) -1.31 % 1.70 % 7.62 % 10.89 % 10.90 % * Class 1 of Frontier Master Fund was closed as of April 1, 2021 and Frontier Diversified Fund Class 1 was closed as of July 21, 2021. Frontier Diversified Fund Frontier Masters Fund Frontier Long/Short Commodity Fund Class 1 Class 2 Class 3 Class 1 Class 2 Class 3 Class 1a Class 2 Class 2a Class 3 Class 3a Per unit operating performance (1) Net asset value, December 31, 2019 $ 101.10 $ 121.58 $ 113.61 $ 72.28 $ 87.18 $ 81.78 $ 44.20 $ 81.60 $ 52.55 $ 85.64 $ 55.31 Net operating results: Interest income 0.01 0.01 0.01 0.09 0.12 0.11 0.14 0.25 0.16 0.27 0.17 Expenses (6.39 ) (3.65 ) (3.23 ) (14.02 ) (4.83 ) (4.51 ) (3.09 ) (2.09 ) (1.34 ) (2.19 ) (1.41 ) Net gain/(loss) on investments, net of non-controlling interests (22.03 ) (28.98 ) (27.06 ) (3.17 ) (14.93 ) (13.86 ) (41.24 )* 6.22 3.91 6.49 4.30 Net income/(loss) (28.42 ) (32.63 ) (30.28 ) (17.10 ) (19.64 ) (18.27 ) (44.20 )* 4.39 2.74 4.56 3.05 Net asset value, December 31, 2020 $ 72.68 $ 88.95 $ 83.33 $ 55.18 $ 67.54 $ 63.52 $ - * $ 85.99 $ 55.29 $ 90.21 $ 58.37 Ratios to average net assets Net investment income/(loss) -7.33 % -3.60 % -3.60 % -22.42 % -6.13 % -6.13 % -6.61 % -2.21 % -2.21 % -2.21 % -2.21 % Expenses before incentive fees (3)(4) 7.34 % 3.61 % 3.61 % 22.57 % 6.28 % 6.28 % 6.91 % 2.51 % 2.51 % 2.51 % 2.51 % Expenses after incentive fees (3)(4) 7.34 % 3.61 % 3.61 % 22.57 % 6.28 % 6.28 % 6.91 % 2.51 % 2.51 % 2.51 % 2.51 % Total return before incentive fees (2) -28.11 % -26.84 % -26.65 % -23.66 % -22.53 % -22.33 % -1.63 %* 5.38 % 5.20 % 5.33 % 5.52 % Total return after incentive fees (2) -28.11 % -26.84 % -26.65 % -23.66 % -22.53 % -22.33 % -1.63 %* 5.38 % 5.20 % 5.33 % 5.52 % Frontier Balanced Fund Frontier Select Fund Class 1 Class 1AP Class 2 Class 2a Class 3a Class 1 Class 1AP Class 2 Per unit operating performance (1) Net asset value, December 31, 2019 $ 117.23 $ 137.81 $ 185.82 $ 161.04 $ 160.50 $ 66.56 $ 78.51 $ 103.94 Net operating results: Interest income 0.04 0.04 0.06 0.05 0.05 0.00 0.00 0.00 Expenses (6.16 ) (4.17 ) (5.64 ) (4.92 ) (4.87 ) (3.40 ) (1.82 ) (2.42 ) Net gain/(loss) on investments, net of non-controlling interests (31.19 ) (36.87 ) (49.70 ) (42.97 ) (42.87 ) (4.60 ) (5.70 ) (7.32 ) Net income/(loss) (37.31 ) (41.00 ) (55.28 ) (47.84 ) (47.69 ) (8.01 ) (7.52 ) (9.74 ) Net asset value, December 31, 2020 $ 79.93 $ 96.81 $ 130.54 $ 113.20 $ 112.81 $ 58.55 $ 70.99 $ 94.20 Ratios to average net assets Net investment income/(loss) -6.98 % -3.99 % -3.99 % -3.99 % -3.99 % -5.49 % -2.49 % -2.49 % Expenses before incentive fees (3)(4) 7.03 % 4.03 % 4.03 % 4.03 % 4.03 % 5.49 % 2.49 % 2.49 % Expenses after incentive fees (3)(4) 7.03 % 4.03 % 4.03 % 4.03 % 4.03 % 5.49 % 2.49 % 2.49 % Total return before incentive fees (2) -31.82 % -29.75 % -29.75 % -29.71 % -29.71 % -12.03 % -9.58 % -9.37 % Total return after incentive fees (2) -31.82 % -29.75 % -29.75 % -29.71 % -29.71 % -12.03 % -9.58 % -9.37 % Frontier Global Fund Frontier Heritage Fund Class 1 Class 1AP Class 2 Class 1 Class 1AP Class 2 Per unit operating performance (1) Net asset value, December 31, 2019 $ 131.52 $ 154.43 $ 192.82 $ 97.54 $ 114.15 $ 153.59 Net operating results: Interest income 0.00 0.00 0.00 0.00 0.00 0.00 Expenses (9.95 ) (7.59 ) (9.47 ) (6.76 ) (4.58 ) (6.26 ) Net gain/(loss) on investments, net of non-controlling interests (10.67 ) (146.84 )* (15.79 ) 5.33 6.93 8.58 Net income/(loss) (20.62 ) (154.43 )* (25.26 ) (1.44 ) 2.35 2.32 Net asset value, December 31, 2020 $ 110.90 $ - * $ 167.56 $ 96.10 $ 116.50 $ 155.92 Ratios to average net assets Net investment income/(loss) -8.11 % -5.12 % -5.12 % -6.93 % -3.93 % -3.93 % Expenses before incentive fees (3)(4) 8.11 % 5.12 % 5.12 % 6.93 % 3.93 % 3.93 % Expenses after incentive fees (3)(4) 8.11 % 5.12 % 5.12 % 6.93 % 3.93 % 3.93 % Total return before incentive fees (2) -15.68 % -23.34 %* -13.10 % -1.47 % 2.06 % 1.51 % Total return after incentive fees (2) -15.68 % -23.34 %* -13.10 % -1.47 % 2.06 % 1.51 % * Frontier Long/Short Commodity Fund Class 1A was closed as of September 30, 2020 and Frontier Global Class 1AP was closed as of November 18, 2020. Frontier Diversified Fund Frontier Masters Fund Frontier Long/Short Commodity Fund Class 1 Class 2 Class 3 Class 1 Class 2 Class 3 Class 1a Class 2 Class 2a Class 3 Class 3a Per unit operating performance (1) Net asset value, December 31, 2018 $ 102.25 $ 120.84 $ 112.62 $ 91.10 $ 107.68 $ 100.77 $ 56.80 $ 98.82 $ 66.52 $ 103.66 $ 69.83 Net operating results: Interest income 0.15 0.17 0.16 0.11 0.13 0.12 0.05 0.10 0.06 0.10 0.06 Expenses (6.83 ) (4.47 ) (4.17 ) (7.39 ) (6.11 ) (5.75 ) (3.24 ) (2.57 ) (1.62 ) (2.70 ) (1.70 ) Net gain/(loss) on investments, net of non-controlling interests 5.54 5.03 4.99 (11.54 ) (14.52 ) (13.36 ) (9.41 ) (14.74 ) (12.41 ) (15.41 ) (12.88 ) Net income/(loss) (1.15 ) 0.74 0.98 (18.82 ) (20.49 ) (18.98 ) (12.60 ) (17.22 ) (13.97 ) (18.02 ) (14.51 ) Net asset value, December 31, 2019 $ 101.10 $ 121.58 $ 113.61 $ 72.28 $ 87.18 $ 81.78 $ 44.20 $ 81.60 $ 52.55 $ 85.64 $ 55.31 Ratios to average net assets Net investment income/(loss) -6.58 % -3.55 % -3.55 % -8.52 % -5.91 % -5.91 % -6.45 % -2.67 % -2.67 % -2.67 % -2.67 % Expenses before incentive fees (3)(4) 6.73 % 3.70 % 3.70 % 8.65 % 6.04 % 6.04 % 6.55 % 2.77 % 2.77 % 2.77 % 2.77 % Expenses after incentive fees (3)(4) 6.73 % 3.70 % 3.70 % 8.65 % 6.04 % 6.04 % 6.55 % 2.77 % 2.77 % 2.77 % 2.77 % Total return before incentive fees (2) -1.12 % 0.61 % 0.87 % -20.66 % -19.03 % -18.84 % -22.19 % -17.43 % -21.00 % -17.38 % -20.79 % Total return after incentive fees (2) -1.12 % 0.61 % 0.87 % -20.66 % -19.03 % -18.84 % -22.19 % -17.43 % -21.00 % -17.38 % -20.79 % Frontier Balanced Fund Frontier Select Fund Class 1 Class 1AP Class 2 Class 2a Class 3a Class 1 Class 1AP Class 2 Per unit operating performance (1) Net asset value, December 31, 2018 $ 117.63 $ 134.16 $ 180.94 $ 156.81 $ 156.26 $ 71.41 $ 82.48 $ 108.18 Net operating results: Interest income 0.21 0.24 0.33 0.28 0.28 (0.00 ) 0.00 (0.00 ) Expenses (8.01 ) (5.25 ) (7.08 ) (6.12 ) (6.12 ) (3.93 ) (2.09 ) (2.69 ) Net gain/(loss) on investments, net of non-controlling interests 7.40 8.66 11.63 10.08 10.08 (0.93 ) (1.88 ) (1.55 ) Net income/(loss) (0.40 ) 3.65 4.88 4.23 4.24 (4.86 ) (3.97 ) (4.24 ) Net asset value, December 31, 2019 $ 117.23 $ 137.81 $ 185.82 $ 161.04 $ 160.50 $ 66.56 $ 78.51 $ 103.94 Ratios to average net assets Net investment income/(loss) -6.73 % -3.73 % -3.73 % -3.73 % -3.73 % -5.42 % -2.42 % -2.42 % Expenses before incentive fees (3)(4) 6.91 % 3.91 % 3.91 % 3.91 % 3.91 % 5.42 % 2.42 % 2.42 % Expenses after incentive fees (3)(4) 6.91 % 3.91 % 3.91 % 3.91 % 3.91 % 5.42 % 2.42 % 2.42 % Total return before incentive fees (2) -0.34 % 2.72 % 2.70 % 2.70 % 2.71 % -6.80 % -4.81 % -3.92 % Total return after incentive fees (2) -0.34 % 2.72 % 2.70 % 2.70 % 2.71 % -6.80 % -4.81 % -3.92 % Frontier Global Fund Frontier Heritage Fund Class 1 Class 1AP Class 2 Class 1 Class 1AP Class 2 Per unit operating performance (1) Net asset value, December 31, 2018 $ 131.57 $ 149.92 $ 187.17 $ 99.83 $ 111.78 $ 152.53 Net operating results: Interest income (0.00 ) (0.00 ) (0.00 ) (0.00 ) 0.00 (0.00 ) Expenses (11.16 ) (8.15 ) (10.11 ) (6.90 ) (4.62 ) (5.93 ) Net gain/(loss) on investments, net of non-controlling interests 11.11 12.66 15.76 4.61 7.00 7.00 Net income/(loss) (0.05 ) 4.51 5.65 (2.29 ) 2.37 1.06 Net asset value, December 31, 2019 $ 131.52 $ 154.43 $ 192.82 $ 97.54 $ 114.15 $ 153.59 Ratios to average net assets Net investment income/(loss) -7.99 % -4.99 % -4.99 % -6.71 % -3.70 % -3.70 % Expenses before incentive fees (3)(4) 7.99 % 4.99 % 4.99 % 6.71 % 3.70 % 3.70 % Expenses after incentive fees (3)(4) 7.99 % 4.99 % 4.99 % 6.71 % 3.70 % 3.70 % Total return before incentive fees (2) -0.04 % 3.01 % 3.02 % -2.30 % 2.12 % 0.70 % Total return after incentive fees (2) -0.04 % 3.01 % 3.02 % -2.30 % 2.12 % 0.70 % (1) Interest income and expenses per unit are calculated by dividing these amounts by the average number of units outstanding during the period. The net gain/(loss) on investments, net of non-controlling interests is a balancing amount necessary to reconcile the change in net asset value per unit with the other per unit information. (2) Impact of incentive fee computed using average net assets, otherwise computed using average units outstanding during the period prior to the effects of any non-controlling transactions. An owner’s total returns may vary from the above returns based on the timing of contributions and withdrawals. Total returns are not annualized. (3) Expense ratios do not reflect interest allocated to the Managing Owner as such expenses are not included in the Statements of Operations of the Series, see footnote 6. (4) Expense ratios do not include management and incentive fees at the Galaxy Plus entities. The ratios would have been higher had those expenses been included. The impact of those fees are included in the total return.
Frontier Funds [Member]
Financial Highlights (Tables) [Line Items]
Schedule of financial highlights of trust	2021 2020 2019 2018 Ratios to average net assets (1) Net investment income/(loss) (1) -6.69 % -5.71 % -5.54 % -6.27 % Expenses before incentive fees (3) (4) -6.06 % -5.75 % -5.71 % -6.37 % Expenses after incentive fees (3) (4) -6.74 % -5.75 % -5.71 % -6.52 % Total return before incentive fees (2) 5.32 % -32.58 % -1.89 % -16.86 % Total return after incentive fees (2) 4.65 % -32.58 % -1.89 % -17.01 % (1) Annualized with the exception of incentive fees. (2) Total returns are not annualized. (3) Expense ratios do not reflect interest allocated to the Managing Owner as such expenses are not included in the Consolidated Statements of Operations of the Trust. See footnote 5.

Derivative Instruments and He_2

Derivative Instruments and Hedging Activities (Tables)	12 Months Ended
	Dec. 31, 2021
The Series of Frontier Funds [Member]
Derivative Instruments and Hedging Activities (Tables) [Line Items]
Schedule of averages futures contracts	Bought Sold Frontier Balanced Fund 652 654 Bought Sold Frontier Balanced Fund 613 612 Bought Sold Frontier Balanced Fund 1,209 1,409
Schedule of realized trading revenue from futures, forwards and options	Type of contract Frontier Balanced Fund Agriculturals $ 191,851 Currencies 96,075 Energies 148,710 Interest rates 108,590 Metals 123,350 Stock indices 204,123 Realized trading income/(loss) (1) $ 872,699 Type of contract Frontier Balanced Fund Agriculturals $ 147,013 Currencies 90,903 Energies 118,920 Interest rates 59,037 Metals 217,301 Stock indices (34,911 ) Realized trading income/(loss) (1) $ 598,263 Type of contract Frontier Balanced Fund Agriculturals $ 230,294 Currencies (104,140 ) Energies 124,324 Interest rates (43,735 ) Metals (71,367 ) Stock indices 151 Realized trading income/(loss) (1) $ 135,527 (1) Amounts recorded in the Statements of Operations under Net realized gain(loss) on futures forwards and options.
Schedule of net trading gain loss	Type of contract Frontier Balanced Fund Agriculturals $ (13,842 ) Currencies 11,977 Energies (14,160 ) Interest rates (37,684 ) Metals (28,136 ) Stock indices (7,461 ) Change in unrealized trading income/(loss) (1) $ (89,306 ) Type of contract Frontier Balanced Fund Agriculturals $ 27,115 Currencies 14,158 Energies (25,335 ) Interest rates 4,660 Metals (1,619 ) Stock indices 11,486 Change in unrealized trading income/(loss) (1) $ 30,465 Type of contract Frontier Balanced Fund Agriculturals $ (37,494 ) Currencies (127,586 ) Energies 9,624 Interest rates (4,922 ) Metals 26,498 Stock indices - Change in unrealized trading income/(loss) (1) $ (133,880 ) (1) Amounts recorded in the Statements of Operations under Net change in open trade equity/(deficit)
Schedule of gross and net information about the trust's assets and liabilities	Gross Amounts of recognized Derivative Assets Gross Amounts offset in the Statements of Financial Condition Net Amounts Presented in the Statements of Financial Condition Frontier Balanced Fund Open Trade Equity/(Deficit) $ 2,118,427 $ (2,103,591 ) $ 14,836 Gross Amounts of recognized Derivative Assets Gross Amounts offset in the Statements of Financial Condition Net Amounts Presented in the Statements of Financial Condition Frontier Balanced Fund Open Trade Equity/(Deficit) $ 814,743 $ (714,303 ) $ 100,440
Frontier Funds [Member]
Derivative Instruments and Hedging Activities (Tables) [Line Items]
Schedule of realized trading revenue from futures, forwards and options	Type of contract Agriculturals $ 191,851 Currencies 96,075 Energies 148,710 Interest rates 108,590 Metals 123,350 Stock indices 204,123 Realized trading income/(loss) (1) $ 872,699 Type of contract Agriculturals $ 147,013 Currencies 90,903 Energies 118,920 Interest rates 59,037 Metals 217,301 Stock indices (34,911 ) Realized trading income/(loss) (1) $ 598,263 Type of contract Agriculturals $ 215,822 Currencies (553,764 ) Energies (430,890 ) Interest rates 273,302 Metals (691,581 ) Stock indices (34,113 ) Realized trading income/(loss) (1) $ (1,221,224 ) (1) Amounts recorded in the Statements of Operations under Net realized gain(loss) on futures forwards and options.
Schedule of net trading gain loss	Type of contract Agriculturals $ (13,842 ) Currencies 11,977 Energies (14,160 ) Interest rates (37,684 ) Metals (28,136 ) Stock indices (7,461 ) Change in unrealized trading income/(loss) (1) $ (89,306 ) Type of contract Agriculturals $ 27,115 Currencies 14,158 Energies (25,335 ) Interest rates 4,660 Metals (1,619 ) Stock indices 11,486 Change in unrealized trading income/(loss) (1) $ 30,465 Type of contract Metals $ (92,782 ) Currencies 100,545 Energies 221,904 Interest rates (231,584 ) Agriculturals 516,390 Stock indices 54,311 Change in unrealized trading income/(loss) (1) $ 568,784 (1) Amounts recorded in the Statements of Operations under Net realized gain(loss) on futures forwards and options.
Schedule of gross and net information about the trust's assets and liabilities	Gross Amounts of recognized Derivative Assets Gross Amounts offset in the Statements of Financial Condition Net Amounts Presented in the Statements of Financial Condition Open Trade Equity/(Deficit) $ 2,118,427 $ (2,103,591 ) $ 14,836 Gross Amounts of recognized Derivative Assets Gross Amounts offset in the Statements of Financial Condition Net Amounts Presented in the Statements of Financial Condition Open Trade Equity/(Deficit) $ 814,743 $ (714,303 ) $ 100,440

Consolidated Condensed Schedu_3

Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies - The Series of Frontier Funds [Member] - USD ($)		Dec. 31, 2021	Dec. 31, 2020
Private Investment Companies [Member] | Frontier Diversified Fund [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 2,838,658	$ 3,644,603
Investment Owned, % of Total Capital (Net Asset Value)	[1]	93.59%	87.12%
Private Investment Companies [Member] | Frontier Diversified Fund [Member] | Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 875,796	$ 1,066,074
Investment Owned, % of Total Capital (Net Asset Value)	[1]	28.87%	25.49%
Private Investment Companies [Member] | Frontier Diversified Fund [Member] | Galaxy Plus Fund - QIM Feeder Fund (526) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 185,705	$ 414,692
Investment Owned, % of Total Capital (Net Asset Value)	[1]	6.12%	9.91%
Private Investment Companies [Member] | Frontier Diversified Fund [Member] | Galaxy Plus Fund - Quest Feeder Fund (517) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 453,710	$ 672,766
Investment Owned, % of Total Capital (Net Asset Value)	[1]	14.96%	16.08%
Private Investment Companies [Member] | Frontier Diversified Fund [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 663,002	$ 732,066
Investment Owned, % of Total Capital (Net Asset Value)	[1]	21.86%	17.50%
Private Investment Companies [Member] | Frontier Diversified Fund [Member] | Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 386,996	$ 435,119
Investment Owned, % of Total Capital (Net Asset Value)	[1]	12.76%	10.40%
Private Investment Companies [Member] | Frontier Diversified Fund [Member] | Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 273,449	$ 323,886
Investment Owned, % of Total Capital (Net Asset Value)	[1]	9.02%	7.74%
Private Investment Companies [Member] | Frontier Diversified Fund [Member] | Galaxy Plus Fund – Volt Diversified Alpha Feeder Fund (550) LLC) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.00%
Private Investment Companies [Member] | Frontier Diversified Fund [Member] | Galaxy Plus Fund - LRR Feeder Fund (522) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.00%	0.00%
Private Investment Companies [Member] | Frontier Masters Fund [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 638,376	$ 1,014,591
Investment Owned, % of Total Capital (Net Asset Value)	[1]	90.21%	102.12%
Private Investment Companies [Member] | Frontier Masters Fund [Member] | Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.00%	0.00%
Private Investment Companies [Member] | Frontier Masters Fund [Member] | Galaxy Plus Fund - QIM Feeder Fund (526) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.00%	0.00%
Private Investment Companies [Member] | Frontier Masters Fund [Member] | Galaxy Plus Fund - Quest Feeder Fund (517) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.00%	0.00%
Private Investment Companies [Member] | Frontier Masters Fund [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 279,895	$ 486,659
Investment Owned, % of Total Capital (Net Asset Value)	[1]	39.55%	48.98%
Private Investment Companies [Member] | Frontier Masters Fund [Member] | Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 193,269	$ 258,609
Investment Owned, % of Total Capital (Net Asset Value)	[1]	27.31%	26.03%
Private Investment Companies [Member] | Frontier Masters Fund [Member] | Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 165,212	$ 269,323
Investment Owned, % of Total Capital (Net Asset Value)	[1]	23.35%	27.11%
Private Investment Companies [Member] | Frontier Masters Fund [Member] | Galaxy Plus Fund – Volt Diversified Alpha Feeder Fund (550) LLC) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.00%
Private Investment Companies [Member] | Frontier Masters Fund [Member] | Galaxy Plus Fund - LRR Feeder Fund (522) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.00%	0.00%
Private Investment Companies [Member] | Frontier Long/Short Commodity Fund [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 1,209,022	$ 738,053
Investment Owned, % of Total Capital (Net Asset Value)	[1]	97.48%	56.19%
Private Investment Companies [Member] | Frontier Long/Short Commodity Fund [Member] | Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.00%	0.00%
Private Investment Companies [Member] | Frontier Long/Short Commodity Fund [Member] | Galaxy Plus Fund - QIM Feeder Fund (526) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.00%	0.00%
Private Investment Companies [Member] | Frontier Long/Short Commodity Fund [Member] | Galaxy Plus Fund - Quest Feeder Fund (517) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.00%	0.00%
Private Investment Companies [Member] | Frontier Long/Short Commodity Fund [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.00%	0.00%
Private Investment Companies [Member] | Frontier Long/Short Commodity Fund [Member] | Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 482,639	$ 272,294
Investment Owned, % of Total Capital (Net Asset Value)	[1]	38.91%	20.73%
Private Investment Companies [Member] | Frontier Long/Short Commodity Fund [Member] | Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.00%	0.00%
Private Investment Companies [Member] | Frontier Long/Short Commodity Fund [Member] | Galaxy Plus Fund – Volt Diversified Alpha Feeder Fund (550) LLC) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 252,149
Investment Owned, % of Total Capital (Net Asset Value)	[1]	20.33%
Private Investment Companies [Member] | Frontier Long/Short Commodity Fund [Member] | Galaxy Plus Fund - LRR Feeder Fund (522) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 474,234	$ 465,759
Investment Owned, % of Total Capital (Net Asset Value)	[1]	38.23%	35.46%
Private Investment Companies [Member] | Frontier Global Fund [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 2,137,382	$ 3,068,656
Investment Owned, % of Total Capital (Net Asset Value)	[1]	101.23%	104.71%
Private Investment Companies [Member] | Frontier Global Fund [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 2,137,382	$ 3,068,656
Investment Owned, % of Total Capital (Net Asset Value)	[1]	101.23%	104.71%
Private Investment Companies [Member] | Frontier Global Fund [Member] | Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]
Investment Owned, % of Total Capital (Net Asset Value)	[1]
Private Investment Companies [Member] | Frontier Heritage Fund [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 2,338,774	$ 2,367,462
Investment Owned, % of Total Capital (Net Asset Value)	[1]	100.71%	99.25%
Private Investment Companies [Member] | Frontier Heritage Fund [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 1,614,360	$ 1,539,331
Investment Owned, % of Total Capital (Net Asset Value)	[1]	69.52%	64.53%
Private Investment Companies [Member] | Frontier Heritage Fund [Member] | Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 724,414	$ 828,131
Investment Owned, % of Total Capital (Net Asset Value)	[1]	31.19%	34.72%
Investment in Unconsolidated Trading Companies [Member] | Frontier Diversified Fund [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 30,788	$ 16,669
Investment Owned, % of Total Capital (Net Asset Value)	[1]	1.02%	0.40%
Investment in Unconsolidated Trading Companies [Member] | Frontier Diversified Fund [Member] | Frontier Trading Company XXXVIII, LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 30,788	$ 16,669
Investment Owned, % of Total Capital (Net Asset Value)	[1]	1.02%	0.40%
Investment in Unconsolidated Trading Companies [Member] | Frontier Masters Fund [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 14,270	$ 907
Investment Owned, % of Total Capital (Net Asset Value)	[1]	2.02%	0.09%
Investment in Unconsolidated Trading Companies [Member] | Frontier Masters Fund [Member] | Frontier Trading Company XXXVIII, LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 14,270	$ 907
Investment Owned, % of Total Capital (Net Asset Value)	[1]	2.02%	0.09%
Investment in Unconsolidated Trading Companies [Member] | Frontier Long/Short Commodity Fund [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 7,541	$ 17,736
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.61%	1.35%
Investment in Unconsolidated Trading Companies [Member] | Frontier Long/Short Commodity Fund [Member] | Frontier Trading Company XXXVIII, LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 7,541	$ 17,736
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.61%	1.35%
Investment in Unconsolidated Trading Companies [Member] | Frontier Global Fund [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 23,818	$ 1,083
Investment Owned, % of Total Capital (Net Asset Value)	[1]	1.13%	0.04%
Investment in Unconsolidated Trading Companies [Member] | Frontier Global Fund [Member] | Frontier Trading Company XXXVIII, LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 23,818	$ 1,083
Investment Owned, % of Total Capital (Net Asset Value)	[1]	1.13%	0.04%
Investment in Unconsolidated Trading Companies [Member] | Frontier Heritage Fund [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 9,087	$ 2,880
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.39%	0.12%
Investment in Unconsolidated Trading Companies [Member] | Frontier Heritage Fund [Member] | Frontier Trading Company XXXVIII, LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 9,087	$ 2,880
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.39%	0.12%
US Treasury Securities [Member] | Frontier Diversified Fund [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[2]		$ 427,393
Investment Owned, % of Total Capital (Net Asset Value)	[2]		10.22%
US Treasury Securities [Member] | Frontier Diversified Fund [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[2]	$ 33,274
Investment Owned, % of Total Capital (Net Asset Value)	[2]	1.10%
US Treasury Securities [Member] | Frontier Masters Fund [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[2]		$ 23,245
Investment Owned, % of Total Capital (Net Asset Value)	[2]		2.34%
US Treasury Securities [Member] | Frontier Masters Fund [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[2]	$ 15,422
Investment Owned, % of Total Capital (Net Asset Value)	[2]	2.18%
US Treasury Securities [Member] | Frontier Long/Short Commodity Fund [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[2]		$ 454,738
Investment Owned, % of Total Capital (Net Asset Value)	[2]		34.63%
US Treasury Securities [Member] | Frontier Long/Short Commodity Fund [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[2]	$ 8,148
Investment Owned, % of Total Capital (Net Asset Value)	[2]	0.66%
US Treasury Securities [Member] | Frontier Global Fund [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[2]		$ 27,742
Investment Owned, % of Total Capital (Net Asset Value)	[2]		0.95%
US Treasury Securities [Member] | Frontier Global Fund [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[2]	$ 25,740
Investment Owned, % of Total Capital (Net Asset Value)	[2]	1.22%
US Treasury Securities [Member] | Frontier Heritage Fund [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[2]		$ 73,847
Investment Owned, % of Total Capital (Net Asset Value)	[2]		3.10%
US Treasury Securities [Member] | Frontier Heritage Fund [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[2]	$ 9,820
Investment Owned, % of Total Capital (Net Asset Value)	[2]	0.42%
Additional Disclosure on U.S. Treasury Securities [Member] | Frontier Diversified Fund [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[2]	$ 27,592	$ 328,604
Additional Disclosure on U.S. Treasury Securities [Member] | Frontier Diversified Fund [Member] | Cost [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[2]	33,709	427,509
Additional Disclosure on U.S. Treasury Securities [Member] | Frontier Masters Fund [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[2]	12,789	17,872
Additional Disclosure on U.S. Treasury Securities [Member] | Frontier Masters Fund [Member] | Cost [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[2]	15,624	23,251
Additional Disclosure on U.S. Treasury Securities [Member] | Frontier Long/Short Commodity Fund [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[2]	6,757	349,629
Additional Disclosure on U.S. Treasury Securities [Member] | Frontier Long/Short Commodity Fund [Member] | Cost [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[2]	8,255	454,862
Additional Disclosure on U.S. Treasury Securities [Member] | Frontier Global Fund [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[2]	21,345	21,330
Additional Disclosure on U.S. Treasury Securities [Member] | Frontier Global Fund [Member] | Cost [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[2]	26,077	27,750
Additional Disclosure on U.S. Treasury Securities [Member] | Frontier Heritage Fund [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[2]	8,143	56,778
Additional Disclosure on U.S. Treasury Securities [Member] | Frontier Heritage Fund [Member] | Cost [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies [Line Items]
Investment Owned, Fair Value	[2]	$ 9,948	$ 73,867
[1]	See Note 5 to the Financial Statements.
[2]	See Note 2 to the Financial Statements.

Consolidated Condensed Schedu_4

Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies (Parentheticals) - US Treasury Securities [Member] - The Series of Frontier Funds [Member] - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Frontier Diversified Fund [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies (Parentheticals) [Line Items]
Investment Owned, at Cost		$ 0
Frontier Diversified Fund [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies (Parentheticals) [Line Items]
Investment Owned, at Cost	$ 142,326
Frontier Masters Fund [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies (Parentheticals) [Line Items]
Investment Owned, at Cost		0
Frontier Masters Fund [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies (Parentheticals) [Line Items]
Investment Owned, at Cost	142,326
Frontier Long/Short Commodity Fund [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies (Parentheticals) [Line Items]
Investment Owned, at Cost		0
Frontier Long/Short Commodity Fund [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies (Parentheticals) [Line Items]
Investment Owned, at Cost	142,326
Frontier Global Fund [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies (Parentheticals) [Line Items]
Investment Owned, at Cost		0
Frontier Global Fund [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies (Parentheticals) [Line Items]
Investment Owned, at Cost	142,326
Frontier Heritage Fund [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies (Parentheticals) [Line Items]
Investment Owned, at Cost		$ 0
Frontier Heritage Fund [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of investment companies (Parentheticals) [Line Items]
Investment Owned, at Cost	$ 142,326

Consolidated Condensed Schedu_5

Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies - USD ($)		Dec. 31, 2021		Dec. 31, 2020
LONG FUTURES CONTRACTS [Member] | Frontier Funds [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ (511,556)		$ 449,023
Investment Owned, % of Total Capital (Net Asset Value)	[1]	2.52%		1.74%
LONG FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various agriculture futures contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 10,141		$ 72,005
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.05%		0.28%
LONG FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various Agriculture Futures Contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ (21,640)		$ 9,803
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.11%		0.04%
LONG FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various Agriculture Futures Contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 51,912		$ 87,496
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.26%		0.34%
LONG FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various Base Metals Futures Contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 20,031		$ 22,858
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.10%		0.09%
LONG FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various Currency Futures Contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 1,994		$ 10,573
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.01%		0.04%
LONG FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various currency futures contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 819
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.00%
LONG FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various Currency Futures Contracts (Latin America) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 6,710		$ 5,833
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.03%		0.02%
LONG FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various currency futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ (9,800)		$ (100)
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.05%		0.00%
LONG FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various energy futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 34
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.00%
LONG FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various Interest Rates Futures Contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ (718,038)		$ 148,949
Investment Owned, % of Total Capital (Net Asset Value)	[1]	3.53%		0.58%
LONG FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various Interest Rates Futures Contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ (10,418)		$ 2,882
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.05%		0.01%
LONG FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various interest rates futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ (7,281)		$ 2,438
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.04%		0.01%
LONG FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various precious metal futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 19,168		$ 28,625
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.09%		0.11%
LONG FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various soft futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 138,674		$ 52,349
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.68%		0.20%
LONG FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various stock index futures contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 1,508
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.01%
LONG FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various stock index futures contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 1,541		$ 5,312
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.01%		0.02%
LONG FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various stock index futures contracts (Oceanic) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 1,236
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.01%
LONG FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various stock index futures contracts (Canada) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 1,853
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.01%
SHORT FUTURES CONTRACTS [Member] | Frontier Funds [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 526,392		$ (348,583)
Investment Owned, % of Total Capital (Net Asset Value)	[1]	2.57%		1.36%
SHORT FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various agriculture futures contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ (27,804)		$ (30,963)
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.14%		0.12%
SHORT FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various Agriculture Futures Contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 20,105		$ (10,797)
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.10%		0.04%
SHORT FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various Agriculture Futures Contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ (11,749)		$ (92,738)
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.06%		0.36%
SHORT FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various Base Metals Futures Contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ (29,574)		$ (10,289)
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.15%		0.04%
SHORT FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various Currency Futures Contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ (18,181)		$ (10,381)
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.09%		0.04%
SHORT FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various currency futures contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ (1,110)
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.01%
SHORT FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various Currency Futures Contracts (Latin America) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ (21,340)		$ 2,512
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.10%		0.01%
SHORT FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various currency futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 6,288		$ 2,300
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.03%		0.01%
SHORT FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various energy futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ (10,792)
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.05%
SHORT FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various Interest Rates Futures Contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ 785,677		$ (127,832)
Investment Owned, % of Total Capital (Net Asset Value)	[1]	3.86%		0.50%
SHORT FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various Interest Rates Futures Contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]			$ (2,482)
Investment Owned, % of Total Capital (Net Asset Value)	[1]			0.01%
SHORT FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various interest rates futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ (625)		$ 3,656
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.00%		0.01%
SHORT FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various precious metal futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ (38,573)		$ (25,560)
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.19%		0.10%
SHORT FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various soft futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ (110,902)		$ (42,669)
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.55%		0.17%
SHORT FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various stock index futures contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ (5,157)
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.03%
SHORT FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various stock index futures contracts (Oceanic) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ (2,217)
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.01%
SHORT FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various stock index futures contracts (Canada) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ (5,194)
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.03%
SHORT FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various stock index futures contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ (2,191)		$ (3,340)
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.01%		0.01%
SHORT FUTURES CONTRACTS [Member] | Frontier Funds [Member] | Various stock index futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[1]	$ (269)
Investment Owned, % of Total Capital (Net Asset Value)	[1]	0.00%
Open Trade Equity (Deficit) [Member] | Frontier Funds [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value		$ 14,836		$ 100,440
Investment Owned, % of Total Capital (Net Asset Value)		0.05%		0.38%
US Treasury Securities [Member] | Frontier Funds [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value		$ 140,487	[2]	$ 2,282,606
Investment Owned, % of Total Capital (Net Asset Value)		0.69%	[2]	8.93%
US Treasury Securities [Member] | Frontier Funds [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value		$ 140,487	[2]	$ 2,282,606
Investment Owned, % of Total Capital (Net Asset Value)		0.69%	[2]	8.93%
PRIVATE INVESTMENT COMPANIES [Member] | Frontier Funds [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[2]	$ 19,595,064		$ 23,089,312
Investment Owned, % of Total Capital (Net Asset Value)	[2]	96.33%		90.31%
PRIVATE INVESTMENT COMPANIES [Member] | Frontier Funds [Member] | Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[2]	$ 2,765,907		$ 3,377,314
Investment Owned, % of Total Capital (Net Asset Value)	[2]	13.60%		13.21%
PRIVATE INVESTMENT COMPANIES [Member] | Frontier Funds [Member] | Galaxy Plus Fund - QIM Feeder Fund (526) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[2]	$ 1,005,707		$ 1,996,633
Investment Owned, % of Total Capital (Net Asset Value)	[2]	4.94%		7.81%
PRIVATE INVESTMENT COMPANIES [Member] | Frontier Funds [Member] | Galaxy Plus Fund - Quest Feeder Fund (517) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[2]	$ 1,588,673		$ 1,654,786
Investment Owned, % of Total Capital (Net Asset Value)	[2]	7.81%		6.47%
PRIVATE INVESTMENT COMPANIES [Member] | Frontier Funds [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[2]	$ 6,352,866		$ 7,427,324
Investment Owned, % of Total Capital (Net Asset Value)	[2]	31.23%		29.05%
PRIVATE INVESTMENT COMPANIES [Member] | Frontier Funds [Member] | Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[2]	$ 4,616,381		$ 5,363,456
Investment Owned, % of Total Capital (Net Asset Value)	[2]	22.70%		20.98%
PRIVATE INVESTMENT COMPANIES [Member] | Frontier Funds [Member] | Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[2]	$ 2,409,149		$ 2,715,008
Investment Owned, % of Total Capital (Net Asset Value)	[2]	11.84%		10.62%
PRIVATE INVESTMENT COMPANIES [Member] | Frontier Funds [Member] | Galaxy Plus Fund - Quest Fit Feeder Fund (535) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[2]	$ 129,995		$ 89,029
Investment Owned, % of Total Capital (Net Asset Value)	[2]	0.64%		0.35%
PRIVATE INVESTMENT COMPANIES [Member] | Frontier Funds [Member] | Galaxy Plus Fund – Volt Diversified Alpha Feeder Fund (550) LLC) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[2]	$ 252,149
Investment Owned, % of Total Capital (Net Asset Value)	[2]	1.24%
PRIVATE INVESTMENT COMPANIES [Member] | Frontier Funds [Member] | Galaxy Plus Fund - LRR Feeder Fund (522) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[2]	$ 474,234		$ 465,759
Investment Owned, % of Total Capital (Net Asset Value)	[2]	2.33%		1.82%
Frontier Balanced Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ (511,556)		$ 449,023
Investment Owned, % of Total Capital (Net Asset Value)	[3]	(5.37%)		3.70%
Frontier Balanced Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various agriculture futures contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ 10,141		$ 72,005
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.11%		0.59%
Frontier Balanced Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Agriculture Futures Contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ (21,640)		$ 9,803
Investment Owned, % of Total Capital (Net Asset Value)	[3]	(0.23%)		0.08%
Frontier Balanced Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Agriculture Futures Contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ 51,912		$ 87,496
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.55%		0.72%
Frontier Balanced Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Base Metals Futures Contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ 20,031		$ 22,858
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.21%		0.19%
Frontier Balanced Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Currency Futures Contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ 1,994		$ 10,573
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.02%		0.09%
Frontier Balanced Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various currency futures contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ 819
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.01%
Frontier Balanced Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Currency Futures Contracts (Latin America) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ 6,710		$ 5,833
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.07%		0.05%
Frontier Balanced Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various currency futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ (9,800)		$ (100)
Investment Owned, % of Total Capital (Net Asset Value)	[3]	(0.10%)		0.00%
Frontier Balanced Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various energy futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ 34
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%
Frontier Balanced Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Interest Rates Futures Contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ (718,038)		$ 148,949
Investment Owned, % of Total Capital (Net Asset Value)	[3]	(7.55%)		1.23%
Frontier Balanced Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Interest Rates Futures Contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ (10,418)		$ 2,882
Investment Owned, % of Total Capital (Net Asset Value)	[3]	(0.11%)		0.02%
Frontier Balanced Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various interest rates futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ (7,281)		$ 2,438
Investment Owned, % of Total Capital (Net Asset Value)	[3]	(0.08%)		0.02%
Frontier Balanced Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various precious metal futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ 19,168		$ 28,625
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.20%		0.24%
Frontier Balanced Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various soft futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ 138,674		$ 52,349
Investment Owned, % of Total Capital (Net Asset Value)	[3]	1.46%		0.43%
Frontier Balanced Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various stock index futures contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ 1,508
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.02%
Frontier Balanced Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various stock index futures contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ 1,542		$ 5,312
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.02%		0.04%
Frontier Balanced Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various stock index futures contracts (Oceanic) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ 1,236
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.01%
Frontier Balanced Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various stock index futures contracts (Canada) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ 1,853
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.02%
Frontier Balanced Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ 526,392		$ (348,583)
Investment Owned, % of Total Capital (Net Asset Value)	[3]	5.56%		(2.89%)
Frontier Balanced Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various agriculture futures contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ (27,804)		$ (30,963)
Investment Owned, % of Total Capital (Net Asset Value)	[3]	(0.29%)		(0.26%)
Frontier Balanced Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Agriculture Futures Contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ 20,105		$ (10,797)
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.21%		(0.09%)
Frontier Balanced Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Agriculture Futures Contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ (11,749)		$ (92,738)
Investment Owned, % of Total Capital (Net Asset Value)	[3]	(0.12%)		(0.77%)
Frontier Balanced Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Base Metals Futures Contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ (29,574)		$ (10,289)
Investment Owned, % of Total Capital (Net Asset Value)	[3]	(0.31%)		(0.08%)
Frontier Balanced Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Currency Futures Contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ (18,181)		$ (10,381)
Investment Owned, % of Total Capital (Net Asset Value)	[3]	(0.19%)		(0.09%)
Frontier Balanced Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various currency futures contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ (1,110)
Investment Owned, % of Total Capital (Net Asset Value)	[3]	(0.01%)
Frontier Balanced Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Currency Futures Contracts (Latin America) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ (21,340)		$ 2,512
Investment Owned, % of Total Capital (Net Asset Value)	[3]	(0.22%)		0.02%
Frontier Balanced Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various currency futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ 6,288		$ 2,300
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.07%		0.02%
Frontier Balanced Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various energy futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ (10,792)
Investment Owned, % of Total Capital (Net Asset Value)	[3]	(0.11%)
Frontier Balanced Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Interest Rates Futures Contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ 785,677		$ (127,832)
Investment Owned, % of Total Capital (Net Asset Value)	[3]	8.26%		(1.06%)
Frontier Balanced Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Interest Rates Futures Contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]			$ (2,482)
Investment Owned, % of Total Capital (Net Asset Value)	[3]			(0.02%)
Frontier Balanced Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various interest rates futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ (625)		$ 3,656
Investment Owned, % of Total Capital (Net Asset Value)	[3]	(0.01%)		0.03%
Frontier Balanced Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various precious metal futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ (38,573)		$ (25,560)
Investment Owned, % of Total Capital (Net Asset Value)	[3]	(0.41%)		(0.21%)
Frontier Balanced Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various soft futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ (110,902)		$ (42,669)
Investment Owned, % of Total Capital (Net Asset Value)	[3]	(1.17%)		(0.35%)
Frontier Balanced Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various stock index futures contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ (5,157)
Investment Owned, % of Total Capital (Net Asset Value)	[3]	(0.05%)
Frontier Balanced Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various stock index futures contracts (Oceanic) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ (2,217)
Investment Owned, % of Total Capital (Net Asset Value)	[3]	(0.02%)
Frontier Balanced Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various stock index futures contracts (Canada) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ (5,194)
Investment Owned, % of Total Capital (Net Asset Value)	[3]	(0.05%)
Frontier Balanced Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various stock index futures contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ (2,191)		$ (3,340)
Investment Owned, % of Total Capital (Net Asset Value)	[3]	(0.02%)		(0.03%)
Frontier Balanced Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various stock index futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]	$ (269)
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%
Frontier Balanced Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various soft futures contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]			0.00%
Frontier Balanced Fund [Member] | Open Trade Equity (Deficit) [Member] | The Series of Frontier Funds [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value		$ 14,836		$ 100,440
Investment Owned, % of Total Capital (Net Asset Value)		0.19%		0.81%
Frontier Balanced Fund [Member] | Private Investment Companies [Member] | The Series of Frontier Funds [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[4]	$ 8,928,481		$ 10,528,252
Investment Owned, % of Total Capital (Net Asset Value)	[4]	93.90%		86.93%
Frontier Balanced Fund [Member] | Private Investment Companies [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[4]	$ 1,890,115		$ 2,311,240
Investment Owned, % of Total Capital (Net Asset Value)	[4]	19.88%		19.08%
Frontier Balanced Fund [Member] | Private Investment Companies [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - QIM Feeder Fund (526) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[4]	$ 820,002		$ 1,581,941
Investment Owned, % of Total Capital (Net Asset Value)	[4]	8.62%		13.06%
Frontier Balanced Fund [Member] | Private Investment Companies [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Quest Feeder Fund (517) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[4]	$ 1,134,963		$ 982,020
Investment Owned, % of Total Capital (Net Asset Value)	[4]	11.94%		8.11%
Frontier Balanced Fund [Member] | Private Investment Companies [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[4]	$ 1,658,225		$ 1,600,611
Investment Owned, % of Total Capital (Net Asset Value)	[4]	17.44%		13.22%
Frontier Balanced Fund [Member] | Private Investment Companies [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[4]	$ 2,032,209		$ 2,612,336
Investment Owned, % of Total Capital (Net Asset Value)	[4]	21.37%		21.57%
Frontier Balanced Fund [Member] | Private Investment Companies [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[4]	$ 1,392,967		$ 1,440,104
Investment Owned, % of Total Capital (Net Asset Value)	[4]	14.65%		11.89%
Frontier Balanced Fund [Member] | Investment in Unconsolidated Trading Companies [Member] | The Series of Frontier Funds [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[4]	$ 34,977		$ 49,755
Investment Owned, % of Total Capital (Net Asset Value)	[4]	0.37%		0.41%
Frontier Balanced Fund [Member] | Investment in Unconsolidated Trading Companies [Member] | The Series of Frontier Funds [Member] | Frontier Trading Company XXXVIII, LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[4]	$ 34,977		$ 49,755
Investment Owned, % of Total Capital (Net Asset Value)	[4]	0.37%		0.41%
Frontier Balanced Fund [Member] | US Treasury Securities [Member] | The Series of Frontier Funds [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[5]			$ 1,275,641
Investment Owned, % of Total Capital (Net Asset Value)	[5]			10.53%
Frontier Balanced Fund [Member] | US Treasury Securities [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[5]	$ 37,801
Investment Owned, % of Total Capital (Net Asset Value)	[5]	0.40%
Frontier Balanced Fund [Member] | Additional Disclosure on U.S. Treasury Securities [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[5]	$ 31,347		$ 980,787
Investment Owned, at Cost	[5]	38,296		1,275,989
Frontier Select Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various agriculture futures contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Agriculture Futures Contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Agriculture Futures Contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Base Metals Futures Contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Currency Futures Contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various currency futures contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%
Frontier Select Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Currency Futures Contracts (Latin America) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various currency futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various energy futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%
Frontier Select Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Interest Rates Futures Contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Interest Rates Futures Contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various interest rates futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various precious metal futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various soft futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various stock index futures contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%
Frontier Select Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various stock index futures contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various stock index futures contracts (Oceanic) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%
Frontier Select Fund [Member] | LONG FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various stock index futures contracts (Canada) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%
Frontier Select Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various agriculture futures contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Agriculture Futures Contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Agriculture Futures Contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Base Metals Futures Contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Currency Futures Contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various currency futures contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%
Frontier Select Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Currency Futures Contracts (Latin America) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various currency futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various energy futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%
Frontier Select Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Interest Rates Futures Contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various Interest Rates Futures Contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]			0.00%
Frontier Select Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various interest rates futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various precious metal futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various soft futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various stock index futures contracts (Europe) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%
Frontier Select Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various stock index futures contracts (Oceanic) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%
Frontier Select Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various stock index futures contracts (Canada) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%
Frontier Select Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various stock index futures contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%		0.00%
Frontier Select Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various stock index futures contracts (U.S.) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]	0.00%
Frontier Select Fund [Member] | SHORT FUTURES CONTRACTS [Member] | The Series of Frontier Funds [Member] | Various soft futures contracts (Far East) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[3]
Investment Owned, % of Total Capital (Net Asset Value)	[3]			0.00%
Frontier Select Fund [Member] | Open Trade Equity (Deficit) [Member] | The Series of Frontier Funds [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value
Investment Owned, % of Total Capital (Net Asset Value)		0.00%		0.00%
Frontier Select Fund [Member] | Private Investment Companies [Member] | The Series of Frontier Funds [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[4]	$ 1,374,376		$ 1,638,665
Investment Owned, % of Total Capital (Net Asset Value)	[4]	97.07%		99.13%
Frontier Select Fund [Member] | Private Investment Companies [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[4]
Investment Owned, % of Total Capital (Net Asset Value)	[4]	0.00%		0.00%
Frontier Select Fund [Member] | Private Investment Companies [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - QIM Feeder Fund (526) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[4]
Investment Owned, % of Total Capital (Net Asset Value)	[4]	0.00%		0.00%
Frontier Select Fund [Member] | Private Investment Companies [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Quest Feeder Fund (517) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[4]
Investment Owned, % of Total Capital (Net Asset Value)	[4]	0.00%		0.00%
Frontier Select Fund [Member] | Private Investment Companies [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[4]
Investment Owned, % of Total Capital (Net Asset Value)	[4]	0.00%		0.00%
Frontier Select Fund [Member] | Private Investment Companies [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[4]	$ 796,855		$ 956,968
Investment Owned, % of Total Capital (Net Asset Value)	[4]	56.28%		57.89%
Frontier Select Fund [Member] | Private Investment Companies [Member] | The Series of Frontier Funds [Member] | Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[4]	$ 577,521		$ 681,697
Investment Owned, % of Total Capital (Net Asset Value)	[4]	40.79%		41.24%
Frontier Select Fund [Member] | Investment in Unconsolidated Trading Companies [Member] | The Series of Frontier Funds [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[4]	$ 9,514
Investment Owned, % of Total Capital (Net Asset Value)	[4]	0.67%		0.00%
Frontier Select Fund [Member] | Investment in Unconsolidated Trading Companies [Member] | The Series of Frontier Funds [Member] | Frontier Trading Company XXXVIII, LLC [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[4]	$ 9,514
Investment Owned, % of Total Capital (Net Asset Value)	[4]	0.67%		0.00%
Frontier Select Fund [Member] | US Treasury Securities [Member] | The Series of Frontier Funds [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value
Investment Owned, % of Total Capital (Net Asset Value)	[5]			0.00%
Frontier Select Fund [Member] | US Treasury Securities [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[5]	$ 10,282
Investment Owned, % of Total Capital (Net Asset Value)	[5]	0.73%
Frontier Select Fund [Member] | Additional Disclosure on U.S. Treasury Securities [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies [Line Items]
Investment Owned, Fair Value	[5]	$ 8,527
Investment Owned, at Cost	[5]	$ 10,417
[1]	Except for those items disclosed, no individual futures, forwards and option on futures contract position constituted greater than 1 percent of Net Asset Value. Accordingly, the number of contracts and expiration dates are not presented.
[2]	See Notes to Consolidated Financial Statements, Note 2.
[3]	Except for those items disclosed, no individual futures, or forwards position constituted greater than 1 percent of Net Asset Value. Accordingly, the number of contracts and expiration dates are not presented.
[4]	See Note 5 to the Financial Statements.
[5]	See Note 2 to the Financial Statements.

Consolidated Condensed Schedu_6

Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies (Parentheticals) - US Treasury Securities [Member] - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Frontier Funds [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies (Parentheticals) [Line Items]
Investment Owned, at Cost	$ 142,326
Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies (Parentheticals) [Line Items]
Investment Owned, at Cost		$ 0
Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies (Parentheticals) [Line Items]
Investment Owned, at Cost	142,326
Frontier Select Fund [Member] | The Series of Frontier Funds [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies (Parentheticals) [Line Items]
Investment Owned, at Cost		$ 0
Frontier Select Fund [Member] | The Series of Frontier Funds [Member] | US Treasury Note [Member]
Consolidated Condensed Schedule of Investments (Details) - Condensed Schedule of futures contracts and investment companies (Parentheticals) [Line Items]
Investment Owned, at Cost	$ 142,326

Organization and Purpose (Detai

Organization and Purpose (Details)	12 Months Ended
	Dec. 31, 2021
The Series of Frontier Funds [Member]
Organization and Purpose (Details) [Line Items]
Managing owner contributions to the series of the trust percentage	1.00%
Amortized monthly annual rate	2.00%
Service fee percentage	2.00%
Redemption fee percentage	2.00%
Percentage of average daily NAV charged as a service fees	3.00%
Percentage of NAV charged as a service fees	3.00%
Aggregate initial and ongoing service fees	9.00%
Redemption fee percentage	10.00%
Class 2 or Class 2a [Member]
Organization and Purpose (Details) [Line Items]
Service fee percentage	0.50%
Percentage of NAV charged as a service fees	0.25%
Frontier Funds [Member]
Organization and Purpose (Details) [Line Items]
Managing owner contributions to the series of the trust percentage	1.00%
Aggregate initial and ongoing service fees	9.00%
Redemption fee percentage	10.00%
Minimum [Member] | The Series of Frontier Funds [Member]
Organization and Purpose (Details) [Line Items]
Assets normally invested in one or more trading companies	30.00%
Minimum [Member] | Frontier Funds [Member]
Organization and Purpose (Details) [Line Items]
Assets normally invested in one or more trading companies	30.00%
Maximum [Member] | The Series of Frontier Funds [Member]
Organization and Purpose (Details) [Line Items]
Assets normally invested in one or more trading companies	70.00%
Maximum [Member] | Frontier Funds [Member]
Organization and Purpose (Details) [Line Items]
Assets normally invested in one or more trading companies	70.00%
Class 1 or Class 1a [Member] | Frontier Funds [Member]
Organization and Purpose (Details) [Line Items]
Amortized monthly annual rate	2.00%
Service fee percentage	2.00%
Redemption fee percentage	2.00%
Percentage of average daily NAV charged as a service fees	3.00%
Percentage of NAV charged as a service fees	3.00%
Class 2 and Class 2a [Member] | Frontier Funds [Member]
Organization and Purpose (Details) [Line Items]
Service fee percentage	0.50%
Service fee charged to limited owners	0.25%

Significant Accounting Polici_2

Significant Accounting Policies (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
The Series of Frontier Funds [Member]
Significant Accounting Policies (Details) [Line Items]
Managing owner percentage	2.00%
Restricted cash (in Dollars)	$ 801,701	$ 321,638
Gross income of the Trust constitutes qualifying income	90.00%
Incentive fees percentage	10.00%
Incentive fee, description	If the Managing Owner’s share of the incentive fee exceeds 10% of new net profits during the period for a particular series, then the Managing Owner is obligated to return any amount in excess to the Series. The returned amounts are recorded as Incentive Fee (Rebate) on the Statements of Operations.
Service fee percentage	2.00%
Amortized monthly annual rate	2.00%
Redemption fee percentage	2.00%
Percentage of average daily NAV charged as a service fees	3.00%
Frontier Funds [Member]
Significant Accounting Policies (Details) [Line Items]
Gross income of the Trust constitutes qualifying income	90.00%
Subscriptions in advance (in Dollars)	$ 673,809	638,962
Frontier Funds [Member] | Frontier Trading Company I LLC [Member]
Significant Accounting Policies (Details) [Line Items]
Restricted cash (in Dollars)	$ 801,701	$ 321,638
Class 1 or Class 1a [Member] | The Series of Frontier Funds [Member]
Significant Accounting Policies (Details) [Line Items]
Aggregate interest income percentage	100.00%
Class 1 or Class 1a [Member] | Frontier Funds [Member]
Significant Accounting Policies (Details) [Line Items]
Aggregate interest income percentage	100.00%
Service fee percentage	2.00%
Amortized monthly annual rate	2.00%
Redemption fee percentage	2.00%
Percentage of average daily NAV charged as a service fees	3.00%
Class 2 or Class 2a [Member] | The Series of Frontier Funds [Member]
Significant Accounting Policies (Details) [Line Items]
Service fee percentage	0.50%
Frontier Diversified Fund [Member] | The Series of Frontier Funds [Member]
Significant Accounting Policies (Details) [Line Items]
Advance for service fee (in Dollars)	$ 22,650
Frontier Long/Short Commodity Fund [Member] | The Series of Frontier Funds [Member]
Significant Accounting Policies (Details) [Line Items]
Advance for service fee (in Dollars)	393
Frontier Masters Fund [Member] | The Series of Frontier Funds [Member]
Significant Accounting Policies (Details) [Line Items]
Advance for service fee (in Dollars)	31,725
Frontier Balanced Fund [Member] | The Series of Frontier Funds [Member]
Significant Accounting Policies (Details) [Line Items]
Advance for service fee (in Dollars)	369,341
Frontier Select Fund [Member] | The Series of Frontier Funds [Member]
Significant Accounting Policies (Details) [Line Items]
Advance for service fee (in Dollars)	21,076
Frontier Global Fund [Member] | The Series of Frontier Funds [Member]
Significant Accounting Policies (Details) [Line Items]
Advance for service fee (in Dollars)	158,810
Frontier Heritage Fund [Member] | The Series of Frontier Funds [Member]
Significant Accounting Policies (Details) [Line Items]
Advance for service fee (in Dollars)	$ 69,814
Class 2 and Class 2a [Member] | Frontier Funds [Member]
Significant Accounting Policies (Details) [Line Items]
Service fee percentage	0.50%
Service fee charged to limited owners	0.25%
Frontier Balanced Fund [Member] | Class 1 or Class 1a [Member] | Frontier Funds [Member]
Significant Accounting Policies (Details) [Line Items]
Service fee percentage	3.00%
Amortized monthly annual rate	3.00%
Redemption fee percentage	3.00%

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Fair Value Measurements (Details) [Line Items]
Prices exceeding	5.00%
Swaps [Member] | Frontier Funds [Member]
Fair Value Measurements (Details) [Line Items]
Total change in unrealized appreciation (depreciation)		$ (4,384,210)

Fair Value Measurements (Deta_2

Fair Value Measurements (Details) - Schedule of financial asset portfolio measured at fair value - The Series of Frontier Funds [Member] - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Frontier Diversified Fund [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies	$ 30,788	$ 16,669
U.S. Treasury Securities	33,274	427,393
Frontier Diversified Fund [Member] | Practical Expedient [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies	30,788	16,669
U.S. Treasury Securities
Frontier Diversified Fund [Member] | Level 1 Inputs [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies
U.S. Treasury Securities	33,274	427,393
Frontier Diversified Fund [Member] | Level 2 Inputs [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies
U.S. Treasury Securities
Frontier Diversified Fund [Member] | Level 3 Inputs [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies
U.S. Treasury Securities
Frontier Masters Fund [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies	14,270	907
U.S. Treasury Securities	15,422	23,245
Frontier Masters Fund [Member] | Practical Expedient [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies	14,270	907
U.S. Treasury Securities
Frontier Masters Fund [Member] | Level 1 Inputs [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies
U.S. Treasury Securities	15,422	23,245
Frontier Masters Fund [Member] | Level 2 Inputs [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies
U.S. Treasury Securities
Frontier Masters Fund [Member] | Level 3 Inputs [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies
U.S. Treasury Securities
Frontier Long/Short Commodity Fund [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies	7,541	17,736
U.S. Treasury Securities	8,148	454,738
Frontier Long/Short Commodity Fund [Member] | Practical Expedient [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies	7,541	17,736
U.S. Treasury Securities
Frontier Long/Short Commodity Fund [Member] | Level 1 Inputs [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies
U.S. Treasury Securities	8,148	454,738
Frontier Long/Short Commodity Fund [Member] | Level 2 Inputs [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies
U.S. Treasury Securities
Frontier Long/Short Commodity Fund [Member] | Level 3 Inputs [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies
U.S. Treasury Securities
Frontier Balanced Fund [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies	34,977	49,755
Open Trade Equity (Deficit)	14,836	100,440
U.S. Treasury Securities	37,801	1,275,641
Frontier Balanced Fund [Member] | Practical Expedient [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies	34,977	49,755
Open Trade Equity (Deficit)
U.S. Treasury Securities
Frontier Balanced Fund [Member] | Level 1 Inputs [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies
Open Trade Equity (Deficit)	14,836	100,440
U.S. Treasury Securities	37,801	1,275,641
Frontier Balanced Fund [Member] | Level 2 Inputs [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies
Open Trade Equity (Deficit)
U.S. Treasury Securities
Frontier Balanced Fund [Member] | Level 3 Inputs [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies
Open Trade Equity (Deficit)
U.S. Treasury Securities
Frontier Select Fund [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies	9,514
U.S. Treasury Securities	10,282
Frontier Select Fund [Member] | Practical Expedient [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies	9,514
U.S. Treasury Securities
Frontier Select Fund [Member] | Level 1 Inputs [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies
U.S. Treasury Securities	10,282
Frontier Select Fund [Member] | Level 2 Inputs [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies
U.S. Treasury Securities
Frontier Select Fund [Member] | Level 3 Inputs [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies
U.S. Treasury Securities
Frontier Global Fund [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies	23,818	1,083
U.S. Treasury Securities	25,740	27,742
Frontier Global Fund [Member] | Practical Expedient [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies	23,818	1,083
U.S. Treasury Securities
Frontier Global Fund [Member] | Level 1 Inputs [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies
U.S. Treasury Securities	25,740	27,742
Frontier Global Fund [Member] | Level 2 Inputs [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies
U.S. Treasury Securities
Frontier Global Fund [Member] | Level 3 Inputs [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies
U.S. Treasury Securities
Frontier Heritage Fund [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies	9,087	2,880
U.S. Treasury Securities		73,847
Frontier Heritage Fund [Member]
Frontier Diversified Fund
U.S. Treasury Securities	9,820
Frontier Heritage Fund [Member] | Practical Expedient [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies	9,087	2,880
U.S. Treasury Securities
Frontier Heritage Fund [Member] | Practical Expedient [Member]
Frontier Diversified Fund
U.S. Treasury Securities
Frontier Heritage Fund [Member] | Level 1 Inputs [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies
U.S. Treasury Securities		73,847
Frontier Heritage Fund [Member] | Level 1 Inputs [Member]
Frontier Diversified Fund
U.S. Treasury Securities	9,820
Frontier Heritage Fund [Member] | Level 2 Inputs [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies
U.S. Treasury Securities
Frontier Heritage Fund [Member] | Level 2 Inputs [Member]
Frontier Diversified Fund
U.S. Treasury Securities
Frontier Heritage Fund [Member] | Level 3 Inputs [Member]
Frontier Diversified Fund
Investment in Unconsolidated Trading Companies
U.S. Treasury Securities
Frontier Heritage Fund [Member] | Level 3 Inputs [Member]
Frontier Diversified Fund
U.S. Treasury Securities

Fair Value Measurements (Deta_3

Fair Value Measurements (Details) - Schedule of change in Level 3 assets measured at fair value on recurring basis - Level 3 Inputs [Member] - The Series of Frontier Funds [Member]	12 Months Ended
	Dec. 31, 2021USD ($)
Frontier Balanced Fund [Member] | Swap [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance of recurring Level 3 assets	$ 11,944,753
Total gains or losses (realized/unrealized):
Included in earnings-realized	(2,448,166)
Included in earnings-unrealized	(3,088,917)
Proceeds from collateral reduction	(6,176,555)
Sale of investments	(7,586,366)
Purchase of investments	7,355,251
Change in ownership allocation
Transfers in and/or out of Level 3
Balance of recurring Level 3 assets
Frontier Long/Short Commodity Fund [Member] | Swap [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance of recurring Level 3 assets	362,521
Total gains or losses (realized/unrealized):
Included in earnings-realized	188,100
Included in earnings-unrealized	44,277
Proceeds from collateral reduction	(115,000)
Sale of investments	(594,898)
Purchase of investments	115,000
Change in ownership allocation
Transfers in and/or out of Level 3
Balance of recurring Level 3 assets
Frontier Diversified Fund [Member] | Swap [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance of recurring Level 3 assets	6,384,583
Total gains or losses (realized/unrealized):
Included in earnings-realized	(446,306)
Included in earnings-unrealized	(1,537,399)
Proceeds from collateral reduction	(4,000,000)
Sale of investments	(4,870,025)
Purchase of investments	4,469,147
Change in ownership allocation
Transfers in and/or out of Level 3
Balance of recurring Level 3 assets
Frontier Heritage Fund [Member] | Swap [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance of recurring Level 3 assets	2,888,009
Total gains or losses (realized/unrealized):
Included in earnings-realized	(97,745)
Included in earnings-unrealized	197,829
Proceeds from collateral reduction	(2,474,937)
Sale of investments	(1,491,965)
Purchase of investments	978,809
Change in ownership allocation
Transfers in and/or out of Level 3
Balance of recurring Level 3 assets
Frontier Select Fund [Member] | Investment in Unconsolidated Trading Companies [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance of recurring Level 3 assets	479,024
Change in fair value of investments in unconsolidated trading companies	95,915
Proceeds from sales of investments of unconsolidated trading companies	(574,939)
Purchases of investments of unconsolidated trading companies
Total gains or losses (realized/unrealized):
Change in ownership allocation
Transfers in and/or out of Level 3
Balance of recurring Level 3 assets

Fair Value Measurements (Deta_4

Fair Value Measurements (Details) - Schedule of total change in unrealized appreciation (depreciation) included in statements of operations attributable to level 3 investments - The Series of Frontier Funds [Member]	Dec. 31, 2021USD ($)
Frontier Diversified Fund [Member]
Fair Value Measurements (Details) - Schedule of total change in unrealized appreciation (depreciation) included in statements of operations attributable to level 3 investments [Line Items]
	$ (1,537,399)
Frontier Long/Short Commodity Fund [Member]
Fair Value Measurements (Details) - Schedule of total change in unrealized appreciation (depreciation) included in statements of operations attributable to level 3 investments [Line Items]
	44,277
Frontier Balanced Fund [Member]
Fair Value Measurements (Details) - Schedule of total change in unrealized appreciation (depreciation) included in statements of operations attributable to level 3 investments [Line Items]
	(3,088,917)
Frontier Heritage Fund [Member]
Fair Value Measurements (Details) - Schedule of total change in unrealized appreciation (depreciation) included in statements of operations attributable to level 3 investments [Line Items]
	197,829
Frontier Select Fund [Member]
Fair Value Measurements (Details) - Schedule of total change in unrealized appreciation (depreciation) included in statements of operations attributable to level 3 investments [Line Items]
	$ (91,989)

Swap Contracts (Details)

Swap Contracts (Details)	Dec. 31, 2021USD ($)
The Series of Frontier Funds [Member]
Swap Contracts (Details) [Line Items]
Cash holding shall be in excess amount	$ 250,000
Percentage of index exposure total	40.00%
Frontier Funds [Member]
Swap Contracts (Details) [Line Items]
Cash holding shall be in excess amount	$ 250,000
Percentage of index exposure total	40.00%

Swap Contracts (Details) - Sche

Swap Contracts (Details) - Schedule of investments in following swap - The Series of the Frontier Funds [Member] - DeutscheBank AG [Member] - Swap [Member]	12 Months Ended
	Dec. 31, 2021USD ($)
Frontier Balanced Fund [Member]
Swap Contracts (Details) - Schedule of investments in following swap [Line Items]
Realized Gain/(Loss)	$ (2,448,166)
Change in Unrealized Gain/(Loss)	(3,088,917)
Fair Value as of December 31, 2020	0
Advance on swap appreciation	0
Frontier Diversified Fund [Member]
Swap Contracts (Details) - Schedule of investments in following swap [Line Items]
Realized Gain/(Loss)	(446,306)
Change in Unrealized Gain/(Loss)	(1,537,399)
Fair Value as of December 31, 2020	0
Advance on swap appreciation	0
Frontier Long/Short Commodity Fund [Member]
Swap Contracts (Details) - Schedule of investments in following swap [Line Items]
Realized Gain/(Loss)	188,100
Change in Unrealized Gain/(Loss)	44,277
Fair Value as of December 31, 2020	0
Advance on swap appreciation	0
Frontier Heritage Fund [Member]
Swap Contracts (Details) - Schedule of investments in following swap [Line Items]
Realized Gain/(Loss)	(97,745)
Change in Unrealized Gain/(Loss)	197,829
Fair Value as of December 31, 2020	0
Advance on swap appreciation	$ 0

Investments in Unconsolidated_3

Investments in Unconsolidated Trading Companies and Private Investment Companies (Details)	Dec. 31, 2021
The Series of the Frontier Funds [Member]
Investments in Unconsolidated Trading Companies and Private Investment Companies (Details) [Line Items]
Trust’s total capital	5.00%

Investments in Unconsolidated_4

Investments in Unconsolidated Trading Companies and Private Investment Companies (Details) - Schedule of investments in unconsolidated trading companies - The Series of Frontier Funds [Member] - Frontier Trading Company XXXVIII [Member] - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Frontier Trading Company XXXVIII [Member]
Investments in Unconsolidated Trading Companies and Private Investment Companies (Details) - Schedule of investments in unconsolidated trading companies [Line Items]
Percentage of Series Total Capital Invested in Unconsolidated Trading Companies	1.02%	0.40%
Fair Value	$ 30,788	$ 16,669
Frontier Masters Fund [Member]
Investments in Unconsolidated Trading Companies and Private Investment Companies (Details) - Schedule of investments in unconsolidated trading companies [Line Items]
Percentage of Series Total Capital Invested in Unconsolidated Trading Companies	2.02%	0.09%
Fair Value	$ 14,270	$ 907
Frontier Long/Short Commodity Fund [Member]
Investments in Unconsolidated Trading Companies and Private Investment Companies (Details) - Schedule of investments in unconsolidated trading companies [Line Items]
Percentage of Series Total Capital Invested in Unconsolidated Trading Companies	0.61%	1.35%
Fair Value	$ 7,541	$ 17,736
Frontier Balanced Fund [Member]
Investments in Unconsolidated Trading Companies and Private Investment Companies (Details) - Schedule of investments in unconsolidated trading companies [Line Items]
Percentage of Series Total Capital Invested in Unconsolidated Trading Companies	0.37%	0.41%
Fair Value	$ 34,977	$ 49,755
Frontier Select Fund [Member]
Investments in Unconsolidated Trading Companies and Private Investment Companies (Details) - Schedule of investments in unconsolidated trading companies [Line Items]
Percentage of Series Total Capital Invested in Unconsolidated Trading Companies	0.67%	0.00%
Fair Value	$ 9,514
Frontier Global Fund [Member]
Investments in Unconsolidated Trading Companies and Private Investment Companies (Details) - Schedule of investments in unconsolidated trading companies [Line Items]
Percentage of Series Total Capital Invested in Unconsolidated Trading Companies	1.13%	0.04%
Fair Value	$ 23,818	$ 1,083
Frontier Heritage Fund [Member]
Investments in Unconsolidated Trading Companies and Private Investment Companies (Details) - Schedule of investments in unconsolidated trading companies [Line Items]
Percentage of Series Total Capital Invested in Unconsolidated Trading Companies	0.39%	0.12%
Fair Value	$ 9,087	$ 2,880

Investments in Unconsolidated_5

Investments in Unconsolidated Trading Companies and Private Investment Companies (Details) - Schedule of private investment companies have certain redemption and liquidity restrictions - The Series of the Frontier Funds [Member]	12 Months Ended
	Dec. 31, 2021
Frontier Diversified Fund [Member] | Multi-Strategy [Member] | Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Frontier Diversified Fund [Member] | Multi-Strategy [Member] | Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Frontier Diversified Fund [Member] | Trend Following [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Frontier Diversified Fund [Member] | Trend Following [Member] | Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Frontier Diversified Fund [Member] | Trend Following [Member] | Galaxy Plus Fund - QIM Feeder Fund (526) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Frontier Diversified Fund [Member] | Trend Following [Member] | Galaxy Plus Fund - Quest Feeder Fund (517) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Frontier Masters Fund [Member] | Multi-Strategy [Member] | Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Frontier Masters Fund [Member] | Multi-Strategy [Member] | Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Frontier Masters Fund [Member] | Trend Following [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Frontier Long/Short Commodity Fund [Member] | Multi-Strategy [Member] | Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Frontier Long/Short Commodity Fund [Member] | Multi-Strategy [Member] | Galaxy Plus Fund - LRR Feeder Fund (522) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Frontier Long/Short Commodity Fund [Member] | Multi-Strategy [Member] | Galaxy Plus Fund – Volt Diversified Alpha Feeder Fund (550) LLC) [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Frontier Balanced Fund [Member] | Multi-Strategy [Member] | Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Frontier Balanced Fund [Member] | Multi-Strategy [Member] | Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Frontier Balanced Fund [Member] | Trend Following [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Frontier Balanced Fund [Member] | Trend Following [Member] | Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Frontier Balanced Fund [Member] | Trend Following [Member] | Galaxy Plus Fund - QIM Feeder Fund (526) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Frontier Balanced Fund [Member] | Trend Following [Member] | Galaxy Plus Fund - Quest Feeder Fund (517) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Frontier Select Fund [Member] | Multi-Strategy [Member] | Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Frontier Select Fund [Member] | Multi-Strategy [Member] | Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Frontier Global Fund [Member] | Trend Following [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Frontier Heritage Fund [Member] | Multi-Strategy [Member] | Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Frontier Heritage Fund [Member] | Trend Following [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None

Transactions with Affiliates (D

Transactions with Affiliates (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Transactions with Affiliates (Details) [Line Items]
Trust paid		$ 22,353
The Series of the Frontier Funds [Member]
Transactions with Affiliates (Details) [Line Items]
Description of range of incentive fee percentage			In each case, the embedded management fee was accrued on the relevant notional amount of the swap.
Description of service fees		Investors who have purchased Class 1 or Class 1a Units of Frontier Diversified Fund, Frontier Masters Fund, and Frontier Long/Short Commodity Fund are charged a service fee of up to two percent (2.0%) annually of the NAV (of the purchase price, in case of the initial service fee) of each Unit purchased, for the benefit of selling agents selling such Class 1 or Class 1a Units. The initial service fee, which is amortized monthly at an annual rate of up to two percent (2.0%) of the average daily NAV of Class 1 or Class 1a of such Series, is prepaid to the Managing Owner by each Series, and paid to the selling agents by the Managing Owner in the month following sale; provided, however, that investors who redeem all or a portion of their Class 1 and Class 1a Units of any Series during the first twelve (12) months following the effective date of their purchase are subject to a redemption fee of up to two percent (2.0%) of the purchase price at which such investor redeemed to reimburse the Managing Owner for the then-unamortized balance of the prepaid initial service fee. Investors who have purchased Class 1 or Class 1a Units of Frontier Balanced Fund, Frontier Heritage Fund, Frontier Select Fund, and Frontier Global Fund are charged a service fee of up to three percent (3.0%) annually of the NAV (of the purchase price, in case of the initial service fee) of each Unit purchased, for the benefit of selling agents selling such Class 1 or Class 1a Units. The initial service fee, which is amortized monthly at an annual rate of up to three percent (3.0%) of the average daily NAV of Class 1 or Class 1a of such Series, is prepaid to the Managing Owner by each Series, and paid to the selling agents by the Managing Owner in the month following sale; provided, however, that investors who redeem all or a portion of their Class 1 and Class 1a Units of any Series during the first twelve (12) months following the effective date of their purchase are subject to a redemption fee of up to three percent (3.0%) of the purchase price at which such investor redeemed to reimburse the Managing Owner for the then-unamortized balance of the prepaid initial service fee. With respect to Class 2 and Class 2a Units of any Series, the Managing Owner pays an ongoing service fee to selling agents of up to one half percent (0.5%) annually of the NAV of each Class 2 or Class 2a Unit (of which 0.25% will be charged to Limited Owners holding Class 2Units of the Frontier Diversified Fund and Frontier Masters Fund or Class 2a Units of the Frontier Long/Short Commodity Fund sold) until such Class 2 or Class 2a Units which are subject to the fee limitation are reclassified as Class 3 or Class 3a Units of the applicable Series for administrative purposes. Currently the service fee is not charged to Class 1AP investors. The Managing Owner may also pay selling agents certain additional fees and expenses for administrative and other services rendered and expenses incurred by such selling agents.
Description of interest income	Aggregate interest income from all sources, including U.S. Treasury Securities assets net of premiums and cash held at clearing brokers, of up to the first 2% (annualized) of average net assets less any fair market value related to swaps is paid to the Managing Owner by the Frontier Balanced Fund (Class 1 and Class 2), Frontier Long/Short Commodity Fund (Class 2 and Class 3), Frontier Global Fund, Frontier Select Fund, and Frontier Heritage Fund. For the Frontier Diversified Fund, Frontier Long/Short Commodity Fund (Class 1a, Class 2a and Class 3a), Frontier Masters Fund, and Frontier Balanced Fund (Class 1AP, Class 2a and Class 3a), 100% of the interest is retained by the respective Series.
The Series of the Frontier Funds [Member] | Managing Owner [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of minimum purchase commitment		1.00%
Percentage of contributes funds to trust		1.00%
Percentage of interest		1.00%
The Series of the Frontier Funds [Member] | Frontier Balanced Fund [Member]
Transactions with Affiliates (Details) [Line Items]
Subscriptions in advance for service fee		$ 369,341
The Series of the Frontier Funds [Member] | Frontier Long/Short Commodity Fund [Member]
Transactions with Affiliates (Details) [Line Items]
Subscriptions in advance for service fee		$ 393
The Series of the Frontier Funds [Member] | Frontier Diversified Fund [Member] | Managing Owner [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of management fee		0.75%
The Series of the Frontier Funds [Member] | Frontier Heritage Fund [Member]
Transactions with Affiliates (Details) [Line Items]
Subscriptions in advance for service fee		$ 69,814
The Series of the Frontier Funds [Member] | Frontier Heritage Fund [Member] | Managing Owner [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of management fee		2.50%
Percentage of FCM fee		2.25%
The Series of the Frontier Funds [Member] | Frontier Masters Fund [Member]
Transactions with Affiliates (Details) [Line Items]
Subscriptions in advance for service fee		$ 31,725
The Series of the Frontier Funds [Member] | Frontier Masters Fund [Member] | Managing Owner [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of FCM fee		2.25%
The Series of the Frontier Funds [Member] | Frontier Diversified Fund [Member]
Transactions with Affiliates (Details) [Line Items]
Subscriptions in advance for service fee		$ 22,650
The Series of the Frontier Funds [Member] | Frontier Select Fund [Member]
Transactions with Affiliates (Details) [Line Items]
Subscriptions in advance for service fee		21,076
The Series of the Frontier Funds [Member] | Frontier Global Fund [Member]
Transactions with Affiliates (Details) [Line Items]
Subscriptions in advance for service fee		$ 158,810
Parent Company [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of minimum purchase commitment		1.00%
Percentage of contributes funds to trust		1.00%
Subscriptions in advance for service fee		$ 673,809	$ 638,962
Trust had payable for management fees		1,431	8,854
Trust had payable for trading fees		$ 70,998	81,698
Description of interest income		Aggregate interest income from all sources, including U.S. Treasury Securities assets net of premiums and cash held at clearing brokers, of up to the first 2% (annualized) is paid to the Managing Owner by the Frontier Balanced Fund (Class 1 and Class 2 only), Frontier Long/Short Commodity Fund (Class 2 and Class 3), Frontier Global Fund, Frontier Select Fund, and Frontier Heritage Fund.
Trust paid			$ 1,563,079	$ 42,605
Parent Company [Member] | Managing Owner [Member]
Transactions with Affiliates (Details) [Line Items]
Description of range of incentive fee percentage			(i) swaps owned by Frontier Diversified Fund was 20-25% per annum, (ii) swaps owned by Frontier Balanced Fund was 20-25% per annum, (iii) swaps owned by Frontier Long/Short Commodity Fund was 25% per annum, and (iv) swaps owned by Frontier Heritage Fund was 15% per annum, and the Managing Owner has waived the entire incentive fee due to it from those Series in respect of such Series’ investment in swaps. In each case, the embedded incentive fee was accrued based on the net new trading profits of the swap.
Trust had payable for incentive fees		$ 54,702	$ 0	0
Trust had payable for management fees		1,431	8,854	8,795
Trust had payable for interest fees		1,714	2,107	327
Trust had payable for trading fees		70,998	81,698	160,907
Trust had payable for service fees		31,919	36,705	68,762
Trust paid for incentive fees		158,775	0	0
Trust paid for management fees		18,441	19,600	78,678
Trust paid for service fees		452,671	597,679	1,028,325
Trust paid for trading fees		$ 941,238	$ 1,311,400	$ 2,216,815
Parent Company [Member] | Class 1AP Units [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of interest in specific series of trust		1.00%
Parent Company [Member] | Class 2a Units [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of interest		1.00%
Parent Company [Member] | Frontier Balanced Fund [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of FCM fee		2.25%
Percentage of incentive fee		25.00%
Parent Company [Member] | Frontier Long/Short Commodity Fund [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of management fee		2.00%
Parent Company [Member] | Frontier Long/Short Commodity Fund [Member] | Class 2 and Class 3 [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of management fee		3.50%
Parent Company [Member] | Frontier Diversified Fund [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of management fee		0.75%
Percentage of FCM fee		2.50%
Percentage of incentive fee		20.00%
Parent Company [Member] | Frontier Select Fund [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of FCM fee		2.25%
Parent Company [Member] | Frontier Global Fund [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of series NAV		0.12%
Class 1AP [Member] | The Series of the Frontier Funds [Member] | Frontier Balanced Fund [Member] | Managing Owner [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of interest in specific series of trust		1.00%
Class 2a [Member] | The Series of the Frontier Funds [Member] | Frontier Balanced Fund [Member] | Managing Owner [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of interest in specific series of trust		1.00%
Class 2a [Member] | The Series of the Frontier Funds [Member] | Frontier Long/Short Commodity Fund [Member] | Managing Owner [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of management fee		2.00%
Class 3a [Member] | The Series of the Frontier Funds [Member] | Frontier Balanced Fund [Member] | Managing Owner [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of management fee		0.50%
Class 1 [Member] | The Series of the Frontier Funds [Member] | Frontier Balanced Fund [Member] | Managing Owner [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of management fee		0.50%
Class 2 [Member] | The Series of the Frontier Funds [Member] | Frontier Long/Short Commodity Fund [Member] | Managing Owner [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of management fee		3.50%
Frontier Diversified Fund [Member] | The Series of the Frontier Funds [Member]
Transactions with Affiliates (Details) [Line Items]
Description of range of incentive fee percentage			(i) swaps owned by Frontier Diversified Fund was 20-25% per annum, (ii) swaps owned by Frontier Balanced Fund was 20-25% per annum, (iii) swaps owned by Frontier Long/Short Commodity Fund was 25% per annum, and (iv) swaps owned by Frontier Heritage Fund was 15% per annum, and the Managing Owner has waived the entire incentive fee due to it from those Series in respect of such Series’ investment in swaps. In each case, the embedded incentive fee was accrued based on the net new trading profits of the swap.
Class 1 and Class 2 [Member] | Parent Company [Member] | Frontier Balanced Fund [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of management fee		0.50%
Class 1AP, Class 2a and Class 3a [Member] | Parent Company [Member] | Frontier Balanced Fund [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of management fee		1.00%
Class 1 [Member] | Parent Company [Member] | Managing Owner [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of service fee		3.00%
Class 1a Units [Member] | Parent Company [Member] | Managing Owner [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of service fee		2.00%
Class 2 Units [Member] | Parent Company [Member] | Managing Owner [Member]
Transactions with Affiliates (Details) [Line Items]
Percentage of service fee		0.25%

Transactions with Affiliates _2

Transactions with Affiliates (Details) - Schedule of fees earned by managing owner - The Series of Frontier Funds [Member] - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Frontier Diversified Fund [Member]
Transactions with Affiliates (Details) - Schedule of fees earned by managing owner [Line Items]
Incentive (Rebate) Fees
Management Fee			2,668
Service Fee	2,118	14,246	44,726
Trading Fee	125,429	251,203	493,585
Frontier Masters Fund [Member]
Transactions with Affiliates (Details) - Schedule of fees earned by managing owner [Line Items]
Incentive (Rebate) Fees
Management Fee			7,665
Service Fee	628	1,786	11,635
Trading Fee	52,957	101,300	213,153
Frontier Long/Short Commodity Fund [Member]
Transactions with Affiliates (Details) - Schedule of fees earned by managing owner [Line Items]
Incentive (Rebate) Fees
Management Fee
Service Fee	228	381	562
Trading Fee	38,961	32,628	54,334
Frontier Balanced Fund [Member]
Transactions with Affiliates (Details) - Schedule of fees earned by managing owner [Line Items]
Incentive (Rebate) Fees	158,775
Management Fee	18,441	19,600	22,377
Service Fee	258,209	351,503	606,359
Trading Fee	435,300	580,978	972,678
Frontier Select Fund [Member]
Transactions with Affiliates (Details) - Schedule of fees earned by managing owner [Line Items]
Incentive (Rebate) Fees
Management Fee
Service Fee	46,410	62,144	102,692
Trading Fee	46,943	53,759	85,589
Frontier Global Fund [Member]
Transactions with Affiliates (Details) - Schedule of fees earned by managing owner [Line Items]
Incentive (Rebate) Fees
Management Fee			38,679
Service Fee	76,678	100,858	177,833
Trading Fee	140,017	186,591	278,497
Frontier Heritage Fund [Member]
Transactions with Affiliates (Details) - Schedule of fees earned by managing owner [Line Items]
Incentive (Rebate) Fees
Management Fee			7,289
Service Fee	68,400	66,761	84,518
Trading Fee	$ 101,631	$ 104,941	$ 118,979

Transactions with Affiliates _3

Transactions with Affiliates (Details) - Schedule of fees payable to managing owner - The Series of Frontier Funds [Member] - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Frontier Diversified Fund [Member]
Transactions with Affiliates (Details) - Schedule of fees payable to managing owner [Line Items]
Incentive Fees
Incentive Fees
Interest Fees
Interest Fees	83	385
Trading Fees	9,217	12,576
Frontier Masters Fund [Member]
Transactions with Affiliates (Details) - Schedule of fees payable to managing owner [Line Items]
Incentive Fees
Incentive Fees
Interest Fees
Interest Fees	43	70
Trading Fees	3,882	5,460
Frontier Long/Short Commodity Fund [Member]
Transactions with Affiliates (Details) - Schedule of fees payable to managing owner [Line Items]
Incentive Fees
Incentive Fees
Interest Fees	32	87
Interest Fees	19	18
Trading Fees	3,407	2,281
Frontier Balanced Fund [Member]
Transactions with Affiliates (Details) - Schedule of fees payable to managing owner [Line Items]
Incentive Fees	54,702
Incentive Fees	1,431	8,854
Interest Fees	957	1,376
Interest Fees	18,314	21,381
Trading Fees	32,970	37,894
Frontier Select Fund [Member]
Transactions with Affiliates (Details) - Schedule of fees payable to managing owner [Line Items]
Incentive Fees
Incentive Fees
Interest Fees	196	179
Interest Fees	3,524	3,709
Trading Fees	3,682	3,933
Frontier Global Fund [Member]
Transactions with Affiliates (Details) - Schedule of fees payable to managing owner [Line Items]
Incentive Fees
Incentive Fees
Interest Fees	312	326
Interest Fees	4,986	6,348
Trading Fees	9,533	11,849
Frontier Heritage Fund [Member]
Transactions with Affiliates (Details) - Schedule of fees payable to managing owner [Line Items]
Incentive Fees
Incentive Fees
Interest Fees	217	139
Interest Fees	4,950	4,794
Trading Fees	$ 8,307	$ 7,705

Transactions with Affiliates _4

Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner - The Series of Frontier Funds [Member] - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner [Line Items]
Gross Amount Paid to the Managing Owner	$ 22,353	$ 1,563,082	$ 42,605
Frontier Diversified Fund [Member] | Class 1 [Member]
Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner [Line Items]
Gross Amount Paid to the Managing Owner		$ 128,397
Ratio to Average Net Assets	0.00%	33.62%	0.00%
Frontier Diversified Fund [Member] | Class 2 [Member]
Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner [Line Items]
Gross Amount Paid to the Managing Owner		$ 791,849
Ratio to Average Net Assets	0.00%	29.93%	0.00%
Frontier Diversified Fund [Member] | Class 3 [Member]
Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner [Line Items]
Gross Amount Paid to the Managing Owner		$ 617,154
Ratio to Average Net Assets	0.00%	14.78%	0.00%
Frontier Masters Fund [Member] | Class 1 [Member]
Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner [Line Items]
Gross Amount Paid to the Managing Owner		$ 219
Ratio to Average Net Assets	0.00%	2.00%	0.00%
Frontier Masters Fund [Member] | Class 2 [Member]
Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner [Line Items]
Gross Amount Paid to the Managing Owner		$ 1,567
Ratio to Average Net Assets	0.00%	0.25%	0.00%
Frontier Long/Short Commodity Fund [Member] | Class 2 [Member]
Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner [Line Items]
Gross Amount Paid to the Managing Owner	$ 22	$ 27	$ 14
Ratio to Average Net Assets	0.06%	0.07%	0.02%
Frontier Long/Short Commodity Fund [Member] | Class 3 [Member]
Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner [Line Items]
Gross Amount Paid to the Managing Owner	$ 659	$ 703	$ 337
Ratio to Average Net Assets	0.06%	0.07%	0.02%
Frontier Balanced Fund [Member] | Class 1 [Member]
Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner [Line Items]
Gross Amount Paid to the Managing Owner	$ 8,660	$ 7,387	$ 3,925
Ratio to Average Net Assets	0.10%	0.06%	0.02%
Frontier Balanced Fund [Member] | Class 2 [Member]
Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner [Line Items]
Gross Amount Paid to the Managing Owner	$ 1,749	$ 1,484	$ 764
Ratio to Average Net Assets	0.10%	0.06%	0.02%
Frontier Balanced Fund [Member] | Class 1AP [Member]
Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner [Line Items]
Gross Amount Paid to the Managing Owner	$ 108	$ 103	$ 64
Ratio to Average Net Assets	0.11%	0.06%	0.02%
Frontier Balanced Fund [Member] | Class 2a [Member]
Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner [Line Items]
Gross Amount Paid to the Managing Owner	$ 16	$ 17	$ 10
Ratio to Average Net Assets	0.02%	0.01%	0.00%
Frontier Balanced Fund [Member] | Class 3a [Member]
Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner [Line Items]
Gross Amount Paid to the Managing Owner	$ 103	$ 80	$ 32
Ratio to Average Net Assets	0.02%	0.01%	0.00%
Frontier Select Fund [Member] | Class 1 [Member]
Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner [Line Items]
Gross Amount Paid to the Managing Owner	$ 2,876	$ 4,514	$ 5,563
Ratio to Average Net Assets	0.19%	0.22%	0.16%
Frontier Select Fund [Member] | Class 2 [Member]
Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner [Line Items]
Gross Amount Paid to the Managing Owner	$ 138	$ 173	$ 174
Ratio to Average Net Assets	0.18%	0.23%	0.16%
Frontier Select Fund [Member] | Class 1AP [Member]
Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner [Line Items]
Gross Amount Paid to the Managing Owner	$ 20	$ 24	$ 15
Ratio to Average Net Assets	0.19%	0.24%	0.19%
Frontier Global Fund [Member] | Class 1 [Member]
Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner [Line Items]
Gross Amount Paid to the Managing Owner	$ 3,665	$ 3,110	$ 23,787
Ratio to Average Net Assets	0.14%	0.09%	0.40%
Frontier Global Fund [Member] | Class 2 [Member]
Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner [Line Items]
Gross Amount Paid to the Managing Owner	$ 281	$ 238	$ 1,386
Ratio to Average Net Assets	0.14%	0.09%	0.35%
Frontier Global Fund [Member] | Class 1AP [Member]
Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner [Line Items]
Gross Amount Paid to the Managing Owner		$ 28	$ 114
Ratio to Average Net Assets	0.00%	0.10%	0.33%
Frontier Heritage Fund [Member] | Class 1 [Member]
Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner [Line Items]
Gross Amount Paid to the Managing Owner	$ 3,669	$ 5,141	$ 5,323
Ratio to Average Net Assets	0.16%	0.23%	0.19%
Frontier Heritage Fund [Member] | Class 2 [Member]
Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner [Line Items]
Gross Amount Paid to the Managing Owner	$ 373	$ 847	$ 1,088
Ratio to Average Net Assets	0.16%	0.20%	0.18%
Frontier Heritage Fund [Member] | Class 1AP [Member]
Transactions with Affiliates (Details) - Schedule of interest paid by each series to managing owner [Line Items]
Gross Amount Paid to the Managing Owner	$ 14	$ 20	$ 9
Ratio to Average Net Assets	0.16%	0.24%	0.15%

Financial Highlights (Details)

Financial Highlights (Details) - Schedule of financial highlights of trust - The Series of the Frontier Funds [Member] - $ / shares		12 Months Ended
		Dec. 31, 2021		Dec. 31, 2020		Dec. 31, 2019
Frontier Diversified Fund [Member] | Class 1 [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 72.68		$ 101.1		$ 102.25
Net operating results:
Interest income	[1]	0.09				0.15
Expenses	[1]	(4.32)				(6.83)
Net gain/(loss) on investments, net of non-controlling interests	[1],[2]	(68.45)				5.54
Net income/(loss)	[1],[2]	(72.68)				(1.15)
Net asset value	[1]		[2]	72.68		$ 101.1
Ratios to average net assets
Net investment income/(loss)		(10.83%)				(6.58%)
Expenses before incentive fees	[3],[4]	11.07%				6.73%
Expenses after incentive fees	[3],[4]	11.07%				6.73%
Total return before incentive fees	[5]	5.06%	[2]			(1.12%)
Total return after incentive fees	[5]	5.06%	[2]			(1.12%)
Frontier Diversified Fund [Member] | Class 2 [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 88.95		121.58		$ 120.84
Net operating results:
Interest income	[1]	0.11				0.17
Expenses	[1]	(3.28)				(4.47)
Net gain/(loss) on investments, net of non-controlling interests	[1]	3.19				5.03
Net income/(loss)	[1]	0.03				0.74
Net asset value	[1]	$ 88.98		88.95		$ 121.58
Ratios to average net assets
Net investment income/(loss)		(6.54%)				(3.55%)
Expenses before incentive fees	[3],[4]	6.78%				3.70%
Expenses after incentive fees	[3],[4]	6.78%				3.70%
Total return before incentive fees	[5]	0.03%				0.61%
Total return after incentive fees	[5]	0.03%				0.61%
Frontier Diversified Fund [Member] | Class 3 [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 83.33		113.61		$ 112.62
Net operating results:
Interest income	[1]	0.11				0.16
Expenses	[1]	(3.17)				(4.17)
Net gain/(loss) on investments, net of non-controlling interests	[1]	3.28				4.99
Net income/(loss)	[1]	0.23				0.98
Net asset value	[1]	$ 83.56		83.33		$ 113.61
Ratios to average net assets
Net investment income/(loss)		(6.54%)				(3.55%)
Expenses before incentive fees	[3],[4]	6.78%				3.70%
Expenses after incentive fees	[3],[4]	6.78%				3.70%
Total return before incentive fees	[5]	0.28%				0.87%
Total return after incentive fees	[5]	0.28%				0.87%
Frontier Masters Fund [Member] | Class 1 [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 55.18
Net operating results:
Interest income	[1]	0.19
Expenses	[1]	(6.89)
Net gain/(loss) on investments, net of non-controlling interests	[1],[2]	(48.48)
Net income/(loss)	[1],[2]	(55.18)
Net asset value	[1]		[2]	55.18
Ratios to average net assets
Net investment income/(loss)		(24.03%)
Expenses before incentive fees	[3],[4]	24.71%
Expenses after incentive fees	[3],[4]	24.71%
Total return before incentive fees	[2],[5]	4.59%
Total return after incentive fees	[2],[5]	4.59%
Frontier Masters Fund [Member] | Class 2 [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 67.54
Net operating results:
Interest income	[1]	0.27
Expenses	[1]	(4.56)
Net gain/(loss) on investments, net of non-controlling interests	[1]	6.92
Net income/(loss)	[1]	2.63
Net asset value	[1]	$ 70.17		67.54
Ratios to average net assets
Net investment income/(loss)		(11.12%)
Expenses before incentive fees	[3],[4]	11.81%
Expenses after incentive fees	[3],[4]	11.81%
Total return before incentive fees	[5]	3.89%
Total return after incentive fees	[5]	3.89%
Frontier Masters Fund [Member] | Class 3 [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 63.52
Net operating results:
Interest income	[1]	0.25
Expenses	[1]	(4.28)
Net gain/(loss) on investments, net of non-controlling interests	[1]	6.66
Net income/(loss)	[1]	2.63
Net asset value	[1]	$ 66.15		63.52
Ratios to average net assets
Net investment income/(loss)		(11.12%)
Expenses before incentive fees	[3],[4]	11.81%
Expenses after incentive fees	[3],[4]	11.81%
Total return before incentive fees	[5]	4.14%
Total return after incentive fees	[5]	4.14%
Frontier Long/Short Commodity Fund [Member] | Class 2 [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 85.99
Net operating results:
Interest income	[1]	0.27
Expenses	[1]	(2.88)
Net gain/(loss) on investments, net of non-controlling interests	[1]	6.59
Net income/(loss)	[1]	3.98
Net asset value	[1]	$ 89.97		85.99
Ratios to average net assets
Net investment income/(loss)		(5.16%)
Expenses before incentive fees	[3],[4]	5.70%
Expenses after incentive fees	[3],[4]	5.70%
Total return before incentive fees	[5]	4.63%
Total return after incentive fees	[5]	4.63%
Frontier Long/Short Commodity Fund [Member] | Class 3 [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 90.21
Net operating results:
Interest income	[1]	0.27
Expenses	[1]	(2.85)
Net gain/(loss) on investments, net of non-controlling interests	[1]	6.75
Net income/(loss)	[1]	4.17
Net asset value	[1]	$ 94.38		90.21
Ratios to average net assets
Net investment income/(loss)		(5.16%)
Expenses before incentive fees	[3],[4]	5.70%
Expenses after incentive fees	[3],[4]	5.70%
Total return before incentive fees	[5]	4.63%
Total return after incentive fees	[5]	4.63%
Frontier Long/Short Commodity Fund [Member] | Class 2a [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 55.29
Net operating results:
Interest income	[1]	0.17
Expenses	[1]	(1.74)
Net gain/(loss) on investments, net of non-controlling interests	[1]	5.04
Net income/(loss)	[1]	3.46
Net asset value	[1]	$ 58.75		55.29
Ratios to average net assets
Net investment income/(loss)		(5.16%)
Expenses before incentive fees	[3],[4]	5.70%
Expenses after incentive fees	[3],[4]	5.70%
Total return before incentive fees	[5]	6.25%
Total return after incentive fees	[5]	6.25%
Frontier Long/Short Commodity Fund [Member] | Class 3a [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 58.37
Net operating results:
Interest income	[1]	0.17
Expenses	[1]	(1.84)
Net gain/(loss) on investments, net of non-controlling interests	[1]	5.45
Net income/(loss)	[1]	3.79
Net asset value	[1]	$ 62.16		58.37
Ratios to average net assets
Net investment income/(loss)		(5.16%)
Expenses before incentive fees	[3],[4]	5.70%
Expenses after incentive fees	[3],[4]	5.70%
Total return before incentive fees	[5]	6.49%
Total return after incentive fees	[5]	6.49%
Frontier Balanced Fund [Member] | Class 1 [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 79.93
Net operating results:
Interest income	[1]	0
Expenses	[1]	(7.39)
Net gain/(loss) on investments, net of non-controlling interests	[1]	10.28
Net income/(loss)	[1]	2.89
Net asset value	[1]	$ 82.82		79.93
Ratios to average net assets
Net investment income/(loss)		(15.38%)
Expenses before incentive fees	[3],[4]	13.99%
Expenses after incentive fees	[3],[4]	15.38%
Total return before incentive fees	[5]	5.01%
Total return after incentive fees	[5]	3.61%
Frontier Balanced Fund [Member] | Class 2 [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 130.54
Net operating results:
Interest income	[1]	0
Expenses	[1]	(7.92)
Net gain/(loss) on investments, net of non-controlling interests	[1]	16.78
Net income/(loss)	[1]	8.86
Net asset value	[1]	$ 139.4		130.54
Ratios to average net assets
Net investment income/(loss)		(9.53%)
Expenses before incentive fees	[3],[4]	8.14%
Expenses after incentive fees	[3],[4]	9.53%
Total return before incentive fees	[5]	8.18%
Total return after incentive fees	[5]	6.79%
Frontier Balanced Fund [Member] | Class 2a [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 113.2
Net operating results:
Interest income	[1]	0
Expenses	[1]	(7.83)
Net gain/(loss) on investments, net of non-controlling interests	[1]	15.61
Net income/(loss)	[1]	7.78
Net asset value	[1]	$ 120.98		113.2
Ratios to average net assets
Net investment income/(loss)		(9.53%)
Expenses before incentive fees	[3],[4]	8.14%
Expenses after incentive fees	[3],[4]	9.53%
Total return before incentive fees	[5]	8.27%
Total return after incentive fees	[5]	6.87%
Frontier Balanced Fund [Member] | Class 3a [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 112.81
Net operating results:
Interest income	[1]	0
Expenses	[1]	(6.75)
Net gain/(loss) on investments, net of non-controlling interests	[1]	14.51
Net income/(loss)	[1]	7.76
Net asset value	[1]	$ 120.57		112.81
Ratios to average net assets
Net investment income/(loss)		(9.53%)
Expenses before incentive fees	[3],[4]	8.14%
Expenses after incentive fees	[3],[4]	9.53%
Total return before incentive fees	[5]	8.27%
Total return after incentive fees	[5]	6.88%
Frontier Balanced Fund [Member] | Class 1AP [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 96.81
Net operating results:
Interest income	[1]	0
Expenses	[1]	(6.4)
Net gain/(loss) on investments, net of non-controlling interests	[1]	12.97
Net income/(loss)	[1]	6.57
Net asset value	[1]	$ 103.38		96.81
Ratios to average net assets
Net investment income/(loss)		(9.53%)
Expenses before incentive fees	[3],[4]	8.14%
Expenses after incentive fees	[3],[4]	9.53%
Total return before incentive fees	[5]	8.18%
Total return after incentive fees	[5]	6.79%
Frontier Select Fund [Member] | Class 1 [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 58.55		66.56		$ 71.41
Net operating results:
Interest income	[1]	0				0
Expenses	[1]	(3.87)				(3.93)
Net gain/(loss) on investments, net of non-controlling interests	[1]	8.71				(0.93)
Net income/(loss)	[1]	4.84				(4.86)
Net asset value	[1]	$ 63.39		58.55		$ 66.56
Ratios to average net assets
Net investment income/(loss)		(11.80%)				(5.42%)
Expenses before incentive fees	[3],[4]	11.80%				5.42%
Expenses after incentive fees	[3],[4]	11.80%				5.42%
Total return before incentive fees	[5]	8.27%				(6.80%)
Total return after incentive fees	[5]	8.27%				(6.80%)
Frontier Select Fund [Member] | Class 2 [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 94.2		103.94		$ 108.18
Net operating results:
Interest income	[1]	0				0
Expenses	[1]	(2.95)				(2.69)
Net gain/(loss) on investments, net of non-controlling interests	[1]	13.86				(1.55)
Net income/(loss)	[1]	10.9				(4.24)
Net asset value	[1]	$ 105.1		94.2		$ 103.94
Ratios to average net assets
Net investment income/(loss)		(5.79%)				(2.42%)
Expenses before incentive fees	[3],[4]	5.79%				2.42%
Expenses after incentive fees	[3],[4]	5.79%				2.42%
Total return before incentive fees	[5]	11.57%				(3.92%)
Total return after incentive fees	[5]	11.57%				(3.92%)
Frontier Select Fund [Member] | Class 3a [Member]
Per unit operating performance (1)
Net asset value	[1]			160.5		$ 156.26
Net operating results:
Interest income	[1]					0.28
Expenses	[1]					(6.12)
Net gain/(loss) on investments, net of non-controlling interests	[1]					10.08
Net income/(loss)	[1]					4.24
Net asset value	[1]					$ 160.5
Ratios to average net assets
Net investment income/(loss)						(3.73%)
Expenses before incentive fees	[3],[4]					3.91%
Expenses after incentive fees	[3],[4]					3.91%
Total return before incentive fees	[5]					2.71%
Total return after incentive fees	[5]					2.71%
Frontier Select Fund [Member] | Class 1AP [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 70.99		78.51		$ 82.48
Net operating results:
Interest income	[1]	0				0
Expenses	[1]	(2.22)				(2.09)
Net gain/(loss) on investments, net of non-controlling interests	[1]	10.44				(1.88)
Net income/(loss)	[1]	8.22				(3.97)
Net asset value	[1]	$ 79.21		70.99		$ 78.51
Ratios to average net assets
Net investment income/(loss)		(5.79%)				(2.42%)
Expenses before incentive fees	[3],[4]	5.79%				2.42%
Expenses after incentive fees	[3],[4]	5.79%				2.42%
Total return before incentive fees	[5]	11.58%				(4.81%)
Total return after incentive fees	[5]	11.58%				(4.81%)
Frontier Global Fund [Member] | Class 1 [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 110.9		131.52		$ 131.57
Net operating results:
Interest income	[1]	0				0
Expenses	[1]	(9.45)				(11.16)
Net gain/(loss) on investments, net of non-controlling interests	[1]	8				11.11
Net income/(loss)	[1]	(1.45)				(0.05)
Net asset value	[1]	$ 109.45		110.9		$ 131.52
Ratios to average net assets
Net investment income/(loss)		(15.46%)				(7.99%)
Expenses before incentive fees	[3],[4]	15.46%				7.99%
Expenses after incentive fees	[3],[4]	15.46%				7.99%
Total return before incentive fees	[5]	(1.31%)				(0.04%)
Total return after incentive fees	[5]	(1.31%)				(0.04%)
Frontier Global Fund [Member] | Class 2 [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 167.56
Net operating results:
Interest income	[1]	0
Expenses	[1]	(8.67)
Net gain/(loss) on investments, net of non-controlling interests	[1]	11.51
Net income/(loss)	[1]	2.84
Net asset value	[1]	$ 170.4		167.56
Ratios to average net assets
Net investment income/(loss)		(9.73%)
Expenses before incentive fees	[3],[4]	9.73%
Expenses after incentive fees	[3],[4]	9.73%
Total return before incentive fees	[5]	1.70%
Total return after incentive fees	[5]	1.70%
Frontier Heritage Fund [Member] | Class 1 [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 96.1
Net operating results:
Interest income	[1]	0
Expenses	[1]	(7.58)
Net gain/(loss) on investments, net of non-controlling interests	[1]	14.91
Net income/(loss)	[1]	7.33
Net asset value	[1]	$ 103.43		96.1
Ratios to average net assets
Net investment income/(loss)		(14.26%)
Expenses before incentive fees	[3],[4]	14.26%
Expenses after incentive fees	[3],[4]	14.26%
Total return before incentive fees	[5]	7.62%
Total return after incentive fees	[5]	7.62%
Frontier Heritage Fund [Member] | Class 2 [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 155.92		153.59		$ 152.53
Net operating results:
Interest income	[1]	0				0
Expenses	[1]	(7.16)				(5.93)
Net gain/(loss) on investments, net of non-controlling interests	[1]	24.16				7
Net income/(loss)	[1]	16.99				1.06
Net asset value	[1]	$ 172.91		155.92		$ 153.59
Ratios to average net assets
Net investment income/(loss)		(8.18%)				(3.70%)
Expenses before incentive fees	[3],[4]	8.18%				3.70%
Expenses after incentive fees	[3],[4]	8.18%				3.70%
Total return before incentive fees	[5]	10.90%				0.70%
Total return after incentive fees	[5]	10.90%				0.70%
Frontier Heritage Fund [Member] | Class 1AP [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 116.5
Net operating results:
Interest income	[1]	0
Expenses	[1]	(5.34)
Net gain/(loss) on investments, net of non-controlling interests	[1]	18.03
Net income/(loss)	[1]	12.69
Net asset value	[1]	$ 129.19		116.5
Ratios to average net assets
Net investment income/(loss)		(8.18%)
Expenses before incentive fees	[3],[4]	8.18%
Expenses after incentive fees	[3],[4]	8.18%
Total return before incentive fees	[5]	10.89%
Total return after incentive fees	[5]	10.89%
Frontier Diversified Fund [Member] | Class 1 [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 72.68		101.1
Net operating results:
Interest income	[1]			0.01
Expenses	[1]			(6.39)
Net gain/(loss) on investments, net of non-controlling interests	[1]			(22.03)
Net income/(loss)	[1]			(28.42)
Net asset value	[1]			$ 72.68		$ 101.1
Ratios to average net assets
Net investment income/(loss)				(7.33%)
Expenses before incentive fees	[3],[4]			7.34%
Expenses after incentive fees	[3],[4]			7.34%
Total return before incentive fees	[5]			(28.11%)
Total return after incentive fees	[5]			(28.11%)
Frontier Diversified Fund [Member] | Class 2 [Member]
Per unit operating performance (1)
Net asset value	[1]	88.95		$ 121.58
Net operating results:
Interest income	[1]			0.01
Expenses	[1]			(3.65)
Net gain/(loss) on investments, net of non-controlling interests	[1]			(28.98)
Net income/(loss)	[1]			(32.63)
Net asset value	[1]			$ 88.95		121.58
Ratios to average net assets
Net investment income/(loss)				(3.60%)
Expenses before incentive fees	[3],[4]			3.61%
Expenses after incentive fees	[3],[4]			3.61%
Total return before incentive fees	[5]			(26.84%)
Total return after incentive fees	[5]			(26.84%)
Frontier Diversified Fund [Member] | Class 3 [Member]
Per unit operating performance (1)
Net asset value	[1]	83.33		$ 113.61
Net operating results:
Interest income	[1]			0.01
Expenses	[1]			(3.23)
Net gain/(loss) on investments, net of non-controlling interests	[1]			(27.06)
Net income/(loss)	[1]			(30.28)
Net asset value	[1]			$ 83.33		113.61
Ratios to average net assets
Net investment income/(loss)				(3.60%)
Expenses before incentive fees	[3],[4]			3.61%
Expenses after incentive fees	[3],[4]			3.61%
Total return before incentive fees	[5]			(26.65%)
Total return after incentive fees	[5]			(26.65%)
Frontier Masters Fund [Member] | Class 1 [Member]
Per unit operating performance (1)
Net asset value	[1]	55.18		$ 72.28		91.1
Net operating results:
Interest income	[1]			0.09		0.11
Expenses	[1]			(14.02)		(7.39)
Net gain/(loss) on investments, net of non-controlling interests	[1]			(3.17)		(11.54)	[2]
Net income/(loss)	[1]			(17.1)		(18.82)	[2]
Net asset value	[1]			$ 55.18		$ 72.28
Ratios to average net assets
Net investment income/(loss)				(22.42%)		(8.52%)
Expenses before incentive fees	[3],[4]			22.57%		8.65%
Expenses after incentive fees	[3],[4]			22.57%		8.65%
Total return before incentive fees	[5]			(23.66%)		(20.66%)
Total return after incentive fees	[5]			(23.66%)		(20.66%)
Frontier Masters Fund [Member] | Class 2 [Member]
Per unit operating performance (1)
Net asset value	[1]	67.54		$ 87.18		$ 107.68
Net operating results:
Interest income	[1]			0.12		0.13
Expenses	[1]			(4.83)		(6.11)
Net gain/(loss) on investments, net of non-controlling interests	[1]			(14.93)		(14.52)
Net income/(loss)	[1]			(19.64)		(20.49)
Net asset value	[1]			$ 67.54		$ 87.18
Ratios to average net assets
Net investment income/(loss)				(6.13%)		(5.91%)
Expenses before incentive fees	[3],[4]			6.28%		6.04%
Expenses after incentive fees	[3],[4]			6.28%		6.04%
Total return before incentive fees	[5]			(22.53%)		(19.03%)
Total return after incentive fees	[5]			(22.53%)		(19.03%)
Frontier Masters Fund [Member] | Class 3 [Member]
Per unit operating performance (1)
Net asset value	[1]	63.52		$ 81.78		$ 100.77
Net operating results:
Interest income	[1]			0.11		0.12
Expenses	[1]			(4.51)		(5.75)
Net gain/(loss) on investments, net of non-controlling interests	[1]			(13.86)		(13.36)
Net income/(loss)	[1]			(18.27)		(18.98)
Net asset value	[1]			$ 63.52		$ 81.78
Ratios to average net assets
Net investment income/(loss)				(6.13%)		(5.91%)
Expenses before incentive fees	[3],[4]			6.28%		6.04%
Expenses after incentive fees	[3],[4]			6.28%		6.04%
Total return before incentive fees	[5]			(22.33%)		(18.84%)
Total return after incentive fees	[5]			(22.33%)		(18.84%)
Frontier Long/Short Commodity Fund [Member] | Class 2 [Member]
Per unit operating performance (1)
Net asset value	[1]	85.99		$ 81.6		$ 98.82
Net operating results:
Interest income	[1]			0.25		0.1
Expenses	[1]			(2.09)		(2.57)
Net gain/(loss) on investments, net of non-controlling interests	[1]			6.22		(14.74)
Net income/(loss)	[1]			4.39		(17.22)
Net asset value	[1]			$ 85.99		$ 81.6
Ratios to average net assets
Net investment income/(loss)				(2.21%)		(2.67%)
Expenses before incentive fees	[3],[4]			2.51%		2.77%
Expenses after incentive fees	[3],[4]			2.51%		2.77%
Total return before incentive fees	[5]			5.38%		(17.43%)
Total return after incentive fees	[5]			5.38%		(17.43%)
Frontier Long/Short Commodity Fund [Member] | Class 3 [Member]
Per unit operating performance (1)
Net asset value	[1]	90.21		$ 85.64		$ 103.66
Net operating results:
Interest income	[1]			0.27		0.1
Expenses	[1]			(2.19)		(2.7)
Net gain/(loss) on investments, net of non-controlling interests	[1]			6.49		(15.41)
Net income/(loss)	[1]			4.56		(18.02)
Net asset value	[1]			$ 90.21		$ 85.64
Ratios to average net assets
Net investment income/(loss)				(2.21%)		(2.67%)
Expenses before incentive fees	[3],[4]			2.51%		2.77%
Expenses after incentive fees	[3],[4]			2.51%		2.77%
Total return before incentive fees	[5]			5.33%		(17.38%)
Total return after incentive fees	[5]			5.33%		(17.38%)
Frontier Long/Short Commodity Fund [Member] | Class 2a [Member]
Per unit operating performance (1)
Net asset value	[1]	55.29		$ 52.55		$ 66.52
Net operating results:
Interest income	[1]			0.16		0.06
Expenses	[1]			(1.34)		(1.62)
Net gain/(loss) on investments, net of non-controlling interests	[1]			3.91		(12.41)
Net income/(loss)	[1]			2.74		(13.97)
Net asset value	[1]			$ 55.29		$ 52.55
Ratios to average net assets
Net investment income/(loss)				(2.21%)		(2.67%)
Expenses before incentive fees	[3],[4]			2.51%		2.77%
Expenses after incentive fees	[3],[4]			2.51%		2.77%
Total return before incentive fees	[5]			5.20%		(21.00%)
Total return after incentive fees	[5]			5.20%		(21.00%)
Frontier Long/Short Commodity Fund [Member] | Class 3a [Member]
Per unit operating performance (1)
Net asset value	[1]	58.37		$ 55.31		$ 69.83
Net operating results:
Interest income	[1]			0.17		0.06
Expenses	[1]			(1.41)		(1.7)
Net gain/(loss) on investments, net of non-controlling interests	[1]			4.3		(12.88)
Net income/(loss)	[1]			3.05		(14.51)
Net asset value	[1]			$ 58.37		$ 55.31
Ratios to average net assets
Net investment income/(loss)				(2.21%)		(2.67%)
Expenses before incentive fees	[3],[4]			2.51%		2.77%
Expenses after incentive fees	[3],[4]			2.51%		2.77%
Total return before incentive fees	[5]			5.52%		(20.79%)
Total return after incentive fees	[5]			5.52%		(20.79%)
Frontier Long/Short Commodity Fund [Member] | Class 1a [Member]
Per unit operating performance (1)
Net asset value	[1]		[6]	$ 44.2		$ 56.8
Net operating results:
Interest income	[1]			0.14		0.05
Expenses	[1]			(3.09)		(3.24)
Net gain/(loss) on investments, net of non-controlling interests	[1]			(41.24)	[6]	(9.41)
Net income/(loss)	[1]			(44.2)	[6]	(12.6)
Net asset value	[1]				[6]	$ 44.2
Ratios to average net assets
Net investment income/(loss)				(6.61%)		(6.45%)
Expenses before incentive fees	[3],[4]			6.91%		6.55%
Expenses after incentive fees	[3],[4]			6.91%		6.55%
Total return before incentive fees	[5]			(1.63%)	[6]	(22.19%)
Total return after incentive fees	[5]			(1.63%)	[6]	(22.19%)
Frontier Balanced Fund [Member] | Class 1 [Member]
Per unit operating performance (1)
Net asset value	[1]	79.93		$ 117.23
Net operating results:
Interest income	[1]			0.04
Expenses	[1]			(6.16)
Net gain/(loss) on investments, net of non-controlling interests	[1]			(31.19)
Net income/(loss)	[1]			(37.31)
Net asset value	[1]			$ 79.93		$ 117.23
Ratios to average net assets
Net investment income/(loss)				(6.98%)
Expenses before incentive fees	[3],[4]			7.03%
Expenses after incentive fees	[3],[4]			7.03%
Total return before incentive fees	[5]			(31.82%)
Total return after incentive fees	[5]			(31.82%)
Frontier Balanced Fund [Member] | Class 2 [Member]
Per unit operating performance (1)
Net asset value	[1]	130.54		$ 185.82
Net operating results:
Interest income	[1]			0.06
Expenses	[1]			(5.64)
Net gain/(loss) on investments, net of non-controlling interests	[1]			(49.7)
Net income/(loss)	[1]			(55.28)
Net asset value	[1]			$ 130.54		185.82
Ratios to average net assets
Net investment income/(loss)				(3.99%)
Expenses before incentive fees	[3],[4]			4.03%
Expenses after incentive fees	[3],[4]			4.03%
Total return before incentive fees	[5]			(29.75%)
Total return after incentive fees	[5]			(29.75%)
Frontier Balanced Fund [Member] | Class 2a [Member]
Per unit operating performance (1)
Net asset value	[1]	113.2		$ 161.04
Net operating results:
Interest income	[1]			0.05
Expenses	[1]			(4.92)
Net gain/(loss) on investments, net of non-controlling interests	[1]			(42.97)
Net income/(loss)	[1]			(47.84)
Net asset value	[1]			$ 113.2		161.04
Ratios to average net assets
Net investment income/(loss)				(3.99%)
Expenses before incentive fees	[3],[4]			4.03%
Expenses after incentive fees	[3],[4]			4.03%
Total return before incentive fees	[5]			(29.71%)
Total return after incentive fees	[5]			(29.71%)
Frontier Balanced Fund [Member] | Class 3a [Member]
Per unit operating performance (1)
Net asset value	[1]	112.81		$ 160.5
Net operating results:
Interest income	[1]			0.05
Expenses	[1]			(4.87)
Net gain/(loss) on investments, net of non-controlling interests	[1]			(42.87)
Net income/(loss)	[1]			(47.69)
Net asset value	[1]			$ 112.81		160.5
Ratios to average net assets
Net investment income/(loss)				(3.99%)
Expenses before incentive fees	[3],[4]			4.03%
Expenses after incentive fees	[3],[4]			4.03%
Total return before incentive fees	[5]			(29.71%)
Total return after incentive fees	[5]			(29.71%)
Frontier Balanced Fund [Member] | Class 1AP [Member]
Per unit operating performance (1)
Net asset value	[1]	96.81		$ 137.81
Net operating results:
Interest income	[1]			0.04
Expenses	[1]			(4.17)
Net gain/(loss) on investments, net of non-controlling interests	[1]			(36.87)
Net income/(loss)	[1]			(41)
Net asset value	[1]			$ 96.81		137.81
Ratios to average net assets
Net investment income/(loss)				(3.99%)
Expenses before incentive fees	[3],[4]			4.03%
Expenses after incentive fees	[3],[4]			4.03%
Total return before incentive fees	[5]			(29.75%)
Total return after incentive fees	[5]			(29.75%)
Frontier Select Fund [Member] | Class 1 [Member]
Per unit operating performance (1)
Net asset value	[1]	58.55		$ 66.56
Net operating results:
Interest income	[1]			0
Expenses	[1]			(3.4)
Net gain/(loss) on investments, net of non-controlling interests	[1]			(4.6)
Net income/(loss)	[1]			(8.01)
Net asset value	[1]			$ 58.55		66.56
Ratios to average net assets
Net investment income/(loss)				(5.49%)
Expenses before incentive fees	[3],[4]			5.49%
Expenses after incentive fees	[3],[4]			5.49%
Total return before incentive fees	[5]			(12.03%)
Total return after incentive fees	[5]			(12.03%)
Frontier Select Fund [Member] | Class 2 [Member]
Per unit operating performance (1)
Net asset value	[1]	94.2		$ 103.94
Net operating results:
Interest income	[1]			0
Expenses	[1]			(2.42)
Net gain/(loss) on investments, net of non-controlling interests	[1]			(7.32)
Net income/(loss)	[1]			(9.74)
Net asset value	[1]			$ 94.2		103.94
Ratios to average net assets
Net investment income/(loss)				(2.49%)
Expenses before incentive fees	[3],[4]			2.49%
Expenses after incentive fees	[3],[4]			2.49%
Total return before incentive fees	[5]			(9.37%)
Total return after incentive fees	[5]			(9.37%)
Frontier Select Fund [Member] | Class 1AP [Member]
Per unit operating performance (1)
Net asset value	[1]	70.99		$ 78.51
Net operating results:
Interest income	[1]			0
Expenses	[1]			(1.82)
Net gain/(loss) on investments, net of non-controlling interests	[1]			(5.7)
Net income/(loss)	[1]			(7.52)
Net asset value	[1]			$ 70.99		78.51
Ratios to average net assets
Net investment income/(loss)				(2.49%)
Expenses before incentive fees	[3],[4]			2.49%
Expenses after incentive fees	[3],[4]			2.49%
Total return before incentive fees	[5]			(9.58%)
Total return after incentive fees	[5]			(9.58%)
Frontier Global Fund [Member] | Class 1 [Member]
Per unit operating performance (1)
Net asset value	[1]	110.9		$ 131.52
Net operating results:
Interest income	[1]			0
Expenses	[1]			(9.95)
Net gain/(loss) on investments, net of non-controlling interests	[1]			(10.67)
Net income/(loss)	[1]			(20.62)
Net asset value	[1]			$ 110.9		131.52
Ratios to average net assets
Net investment income/(loss)				(8.11%)
Expenses before incentive fees	[3],[4]			8.11%
Expenses after incentive fees	[3],[4]			8.11%
Total return before incentive fees	[5]			(15.68%)
Total return after incentive fees	[5]			(15.68%)
Frontier Global Fund [Member] | Class 2 [Member]
Per unit operating performance (1)
Net asset value	[1]	167.56		$ 192.82		187.17
Net operating results:
Interest income	[1]			0		0
Expenses	[1]			(9.47)		(10.11)
Net gain/(loss) on investments, net of non-controlling interests	[1]			(15.79)		15.76
Net income/(loss)	[1]			(25.26)		5.65
Net asset value	[1]			$ 167.56		$ 192.82
Ratios to average net assets
Net investment income/(loss)				(5.12%)		(4.99%)
Expenses before incentive fees	[3],[4]			5.12%		4.99%
Expenses after incentive fees	[3],[4]			5.12%		4.99%
Total return before incentive fees	[5]			(13.10%)		3.02%
Total return after incentive fees	[5]			(13.10%)		3.02%
Frontier Global Fund [Member] | Class 1AP [Member]
Per unit operating performance (1)
Net asset value	[1]		[6]	$ 154.43		$ 149.92
Net operating results:
Interest income	[1]			0		0
Expenses	[1]			(7.59)		(8.15)
Net gain/(loss) on investments, net of non-controlling interests	[1]			(146.84)	[6]	12.66
Net income/(loss)	[1]			(154.43)	[6]	4.51
Net asset value	[1]				[6]	$ 154.43
Ratios to average net assets
Net investment income/(loss)				(5.12%)		(4.99%)
Expenses before incentive fees	[3],[4]			5.12%		4.99%
Expenses after incentive fees	[3],[4]			5.12%		4.99%
Total return before incentive fees	[5]			(23.34%)	[6]	3.01%
Total return after incentive fees	[5]			(23.34%)	[6]	3.01%
Frontier Heritage Fund [Member] | Class 1 [Member]
Per unit operating performance (1)
Net asset value	[1]	96.1		$ 97.54		$ 99.83
Net operating results:
Interest income	[1]			0		0
Expenses	[1]			(6.76)		(6.9)
Net gain/(loss) on investments, net of non-controlling interests	[1]			5.33		4.61
Net income/(loss)	[1]			(1.44)		(2.29)
Net asset value	[1]			$ 96.1		$ 97.54
Ratios to average net assets
Net investment income/(loss)				(6.93%)		(6.71%)
Expenses before incentive fees	[3],[4]			6.93%		6.71%
Expenses after incentive fees	[3],[4]			6.93%		6.71%
Total return before incentive fees	[5]			(1.47%)		(2.30%)
Total return after incentive fees	[5]			(1.47%)		(2.30%)
Frontier Heritage Fund [Member] | Class 2 [Member]
Per unit operating performance (1)
Net asset value	[1]	155.92		$ 153.59
Net operating results:
Interest income	[1]			0
Expenses	[1]			(6.26)
Net gain/(loss) on investments, net of non-controlling interests	[1]			8.58
Net income/(loss)	[1]			2.32
Net asset value	[1]			$ 155.92		$ 153.59
Ratios to average net assets
Net investment income/(loss)				(3.93%)
Expenses before incentive fees	[3],[4]			3.93%
Expenses after incentive fees	[3],[4]			3.93%
Total return before incentive fees	[5]			1.51%
Total return after incentive fees	[5]			1.51%
Frontier Heritage Fund [Member] | Class 1AP [Member]
Per unit operating performance (1)
Net asset value	[1]	$ 116.5		$ 114.15		111.78
Net operating results:
Interest income	[1]			0		0
Expenses	[1]			(4.58)		(4.62)
Net gain/(loss) on investments, net of non-controlling interests	[1]			6.93		7
Net income/(loss)	[1]			2.35		2.37
Net asset value	[1]			$ 116.5		$ 114.15
Ratios to average net assets
Net investment income/(loss)				(3.93%)		(3.70%)
Expenses before incentive fees	[3],[4]			3.93%		3.70%
Expenses after incentive fees	[3],[4]			3.93%		3.70%
Total return before incentive fees	[5]			2.06%		2.12%
Total return after incentive fees	[5]			2.06%		2.12%
Frontier Balanced Fund [Member] | Class 1 [Member]
Per unit operating performance (1)
Net asset value	[1]			$ 117.23		$ 117.63
Net operating results:
Interest income	[1]					0.21
Expenses	[1]					(8.01)
Net gain/(loss) on investments, net of non-controlling interests	[1]					7.4
Net income/(loss)	[1]					(0.4)
Net asset value	[1]					$ 117.23
Ratios to average net assets
Net investment income/(loss)						(6.73%)
Expenses before incentive fees	[3],[4]					6.91%
Expenses after incentive fees	[3],[4]					6.91%
Total return before incentive fees	[5]					(0.34%)
Total return after incentive fees	[5]					(0.34%)
Frontier Balanced Fund [Member] | Class 2 [Member]
Per unit operating performance (1)
Net asset value	[1]			185.82		$ 180.94
Net operating results:
Interest income	[1]					0.33
Expenses	[1]					(7.08)
Net gain/(loss) on investments, net of non-controlling interests	[1]					11.63
Net income/(loss)	[1]					4.88
Net asset value	[1]					$ 185.82
Ratios to average net assets
Net investment income/(loss)						(3.73%)
Expenses before incentive fees	[3],[4]					3.91%
Expenses after incentive fees	[3],[4]					3.91%
Total return before incentive fees	[5]					2.70%
Total return after incentive fees	[5]					2.70%
Frontier Balanced Fund [Member] | Class 2a [Member]
Per unit operating performance (1)
Net asset value	[1]			161.04		$ 156.81
Net operating results:
Interest income	[1]					0.28
Expenses	[1]					(6.12)
Net gain/(loss) on investments, net of non-controlling interests	[1]					10.08
Net income/(loss)	[1]					4.23
Net asset value	[1]					$ 161.04
Ratios to average net assets
Net investment income/(loss)						(3.73%)
Expenses before incentive fees	[3],[4]					3.91%
Expenses after incentive fees	[3],[4]					3.91%
Total return before incentive fees	[5]					2.70%
Total return after incentive fees	[5]					2.70%
Frontier Balanced Fund [Member] | Class 1AP [Member]
Per unit operating performance (1)
Net asset value	[1]			$ 137.81		$ 134.16
Net operating results:
Interest income	[1]					0.24
Expenses	[1]					(5.25)
Net gain/(loss) on investments, net of non-controlling interests	[1]					8.66
Net income/(loss)	[1]					3.65
Net asset value	[1]					$ 137.81
Ratios to average net assets
Net investment income/(loss)						(3.73%)
Expenses before incentive fees	[3],[4]					3.91%
Expenses after incentive fees	[3],[4]					3.91%
Total return before incentive fees	[5]					2.72%
Total return after incentive fees	[5]					2.72%
[1]	Interest income and expenses per unit are calculated by dividing these amounts by the average number of units outstanding during the period. The net gain/(loss) on investments, net of non-controlling interests is a balancing amount necessary to reconcile the change in net asset value per unit with the other per unit information.
[2]	Class 1 of Frontier Master Fund was closed as of April 1, 2021 and Frontier Diversified Fund Class 1 was closed as of July 21, 2021.
[3]	Expense ratios do not include management and incentive fees at the Galaxy Plus entities. The ratios would have been higher had those expenses been included. The impact of those fees are included in the total return.
[4]	Expense ratios do not reflect interest allocated to the Managing Owner as such expenses are not included in the Statements of Operations of the Series, see footnote 6.
[5]	Impact of incentive fee computed using average net assets, otherwise computed using average units outstanding during the period prior to the effects of any non-controlling transactions. An owner’s total returns may vary from the above returns based on the timing of contributions and withdrawals. Total returns are not annualized.
[6]	Frontier Long/Short Commodity Fund Class 1A was closed as of September 30, 2020 and Frontier Global Class 1AP was closed as of November 18, 2020.

Derivative Instruments and He_3

Derivative Instruments and Hedging Activities (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments and Hedging Activities (Details) [Line Items]
Embedded management fees, description	There are embedded management fees in transacting these swaps ranging from 1% to 1.5% based on fair value of swaps and the embedded incentive fees ranging from 15% to 25% based on net new trading profits on swaps.
Frontier Fund [Member]
Derivative Instruments and Hedging Activities (Details) [Line Items]
Monthly average of forwards, options and futures contracts bought	$ 652	$ 613	$ 1,321
Monthly average of forwards, options and futures contracts sold	$ 654	$ 612	$ 1,515
Minimum [Member] | Frontier Fund [Member]
Derivative Instruments and Hedging Activities (Details) [Line Items]
Percentage of embedded management fees	1.00%
Percentage of fair value of swaps and embedded incentive fees	15.00%
Maximum [Member] | Frontier Fund [Member]
Derivative Instruments and Hedging Activities (Details) [Line Items]
Percentage of embedded management fees	1.50%
Percentage of fair value of swaps and embedded incentive fees	25.00%

Derivative Instruments and He_4

Derivative Instruments and Hedging Activities (Details) - Schedule of averages futures contracts - Frontier Balanced Fund [Member] - The Series of Frontier Funds [Member]	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments and Hedging Activities (Details) - Schedule of averages futures contracts [Line Items]
Derivative Numbers of Instruments Bought	652	613	1,209
Derivative Numbers of Instruments Sold	654	612	1,409

Derivative Instruments and He_5

Derivative Instruments and Hedging Activities (Details) - Schedule of realized trading revenue from futures, forwards and options - Frontier Balanced Fund [Member] - Realized Trading Revenue from Futures, Forwards and Options [Member] - The Series of Frontier Funds [Member] - USD ($)		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Realized trading income/(loss)	[1]	$ 872,699	$ 598,263	$ 135,527
Agriculturals [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Realized trading income/(loss)		191,851	147,013	230,294
Currencies [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Realized trading income/(loss)		96,075	90,903	(104,140)
Energies [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Realized trading income/(loss)		148,710	118,920	124,324
Interest rates [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Realized trading income/(loss)		108,590	59,037	(43,735)
Metals [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Realized trading income/(loss)		123,350	217,301	(71,367)
Stock indices [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Realized trading income/(loss)		$ 204,123	$ (34,911)	$ 151
[1]	Amounts recorded in the Statements of Operations under Net realized gain(loss) on futures forwards and options.

Derivative Instruments and He_6

Derivative Instruments and Hedging Activities (Details) - Schedule of net trading gain loss - Frontier Balanced Fund [Member] - Unrealized Trading Revenue from Futures, Forwards and Options [Member] - The Series of the Frontier Funds [Member] - USD ($)		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments and Hedging Activities (Details) - Schedule of net trading gain loss [Line Items]
Change in unrealized trading income/(loss)	[1]	$ (89,306)	$ 30,465	$ (133,880)
Agriculturals [Member]
Derivative Instruments and Hedging Activities (Details) - Schedule of net trading gain loss [Line Items]
Change in unrealized trading income/(loss)		(13,842)	27,115	(37,494)
Currencies [Member]
Derivative Instruments and Hedging Activities (Details) - Schedule of net trading gain loss [Line Items]
Change in unrealized trading income/(loss)		11,977	14,158	(127,586)
Energies [Member]
Derivative Instruments and Hedging Activities (Details) - Schedule of net trading gain loss [Line Items]
Change in unrealized trading income/(loss)		(14,160)	(25,335)	9,624
Interest rates [Member]
Derivative Instruments and Hedging Activities (Details) - Schedule of net trading gain loss [Line Items]
Change in unrealized trading income/(loss)		(37,684)	4,660	(4,922)
Metals [Member]
Derivative Instruments and Hedging Activities (Details) - Schedule of net trading gain loss [Line Items]
Change in unrealized trading income/(loss)		(28,136)	(1,619)	$ 26,498
Stock indices [Member]
Derivative Instruments and Hedging Activities (Details) - Schedule of net trading gain loss [Line Items]
Change in unrealized trading income/(loss)		$ (7,461)	$ 11,486
[1]	Amounts recorded in the Statements of Operations under Net change in open trade equity/(deficit)

Derivative Instruments and He_7

Derivative Instruments and Hedging Activities (Details) - Schedule of gross and net information about the trust's assets and liabilities - Frontier Balanced Fund [Member] - The Series of Frontier Funds [Member] - Open Trade Equity/(Deficit) [Member] - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Frontier Balanced Fund
Gross Amounts of recognized Derivative Assets	$ 2,118,427	$ 814,743
Gross Amounts offset in the Statements of Financial Condition	(2,103,591)	(714,303)
Net Amounts Presented in the Statements of Financial Condition	$ 14,836	$ 100,440

Trading Activities and Relate_2

Trading Activities and Related Risks (Details)	12 Months Ended
	Dec. 31, 2021
The Series of Frontier Funds [Member]
Trading Activities and Related Risks (Details) [Line Items]
Description of trading activities and related risks	If the markets should move against all of the futures positions held by a Trading Company in respect of any Series at the same time, and if the Trading Advisor(s) of such Trading Company are unable to offset such futures interests positions, such Trading Company could lose all of its assets and the holders of Units of such Series would realize a 100% loss. The Managing Owner will seek to minimize market risk through real-time monitoring of open positions and the level of diversification of each Trading Advisor’s portfolio. It is anticipated that any Trading Advisor’s margin-to-equity ratio will typically not exceed approximately 35% although the actual ratio could be higher or lower from time to time.
Frontier Funds [Member]
Trading Activities and Related Risks (Details) [Line Items]
Description of trading activities and related risks	If the markets should move against all of the futures positions held by a Trading Company or Galaxy Plus entity in respect of any Series at the same time, and if the Trading Advisor(s) of such Trading Company or Galaxy Plus entity are unable to offset such futures interests positions, such Trading Company or Galaxy Plus entity could lose all of its assets and the holders of Units of such Series would realize a 100% loss. The Managing Owner will seek to minimize market risk through real-time monitoring of open positions and the level of diversification of each Trading Advisor’s portfolio. It is anticipated that any Trading Advisor’s margin- to-equity ratio will typically not exceed approximately 35% although the actual ratio could be higher or lower from time to time.

Subsequent Events (Details)

Subsequent Events (Details) - Forecast [Member]	4 Months Ended
	Apr. 15, 2022USD ($)
Subsequent Events (Details) [Line Items]
Paid in redemptions	$ 1,534,218
Frontier Balanced Fund [Member]
Subsequent Events (Details) [Line Items]
Paid in redemptions	677,832
Frontier Diversified Fund [Member]
Subsequent Events (Details) [Line Items]
Paid in redemptions	68,760
Frontier Heritage Fund [Member]
Subsequent Events (Details) [Line Items]
Paid in redemptions	155,511
Frontier Long/Short Commodity Fund [Member]
Subsequent Events (Details) [Line Items]
Paid in redemptions	92,671
Frontier Masters Fund [Member]
Subsequent Events (Details) [Line Items]
Paid in redemptions	192,773
Frontier Select Fund [Member]
Subsequent Events (Details) [Line Items]
Paid in redemptions	37,562
Frontier Global Fund [Member]
Subsequent Events (Details) [Line Items]
Paid in redemptions	$ 309,109

Fair Value Measurements (Deta_5

Fair Value Measurements (Details) - Schedule of financial asset portfolio measured at fair value (Frontier Funds) - Frontier Funds [Member] - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Fair Value Measurements (Details) - Schedule of financial asset portfolio measured at fair value (Frontier Funds) [Line Items]
Open Trade Equity (Deficit)	$ 14,836	$ 100,440
U.S. Treasury Securities	140,487	2,282,606
Level 1 Inputs [Member]
Fair Value Measurements (Details) - Schedule of financial asset portfolio measured at fair value (Frontier Funds) [Line Items]
Open Trade Equity (Deficit)	14,836	100,440
U.S. Treasury Securities	140,487	2,282,606
Level 2 Inputs [Member]
Fair Value Measurements (Details) - Schedule of financial asset portfolio measured at fair value (Frontier Funds) [Line Items]
Open Trade Equity (Deficit)
U.S. Treasury Securities
Level 3 Inputs [Member]
Fair Value Measurements (Details) - Schedule of financial asset portfolio measured at fair value (Frontier Funds) [Line Items]
Open Trade Equity (Deficit)
U.S. Treasury Securities

Fair Value Measurements (Deta_6

Fair Value Measurements (Details) - Schedule of change in unrealized appreciation (depreciation) (Frontier Funds) - Level 3 Inputs [Member] - Frontier Funds [Member]	12 Months Ended
	Dec. 31, 2020USD ($)
Fair Value Measurements (Details) - Schedule of change in unrealized appreciation (depreciation) (Frontier Funds) [Line Items]
Balance of recurring Level 3 assets	$ 21,579,865
Total gains or losses (realized/unrealized):
Included in earnings-realized	(2,896,106)
Included in earnings-unrealized	(4,384,210)
Proceeds from collateral reduction	(12,674,502)
Purchase of investments	12,918,207
Sale of investments	(14,543,254)
Transfers in and/or out of Level 3
Balance of recurring Level 3 assets

Swap Contracts (Details) - Sc_2

Swap Contracts (Details) - Schedule of Investments in following swap - Swap [Member] - Parent Company [Member] - DeutscheBank AG [Member]	12 Months Ended
	Dec. 31, 2021USD ($)
XXXIV Balanced Select Swap [Member]
Swap Contracts (Details) - Schedule of Investments in following swap [Line Items]
Realized Gain/(Loss)	$ (2,448,166)
Change in Unrealized Gain/(Loss)	(3,088,917)
Fair Value as of December 31, 2020	0
Advance on swap appreciation	0
XXXV Diversified Select Swap [Member]
Swap Contracts (Details) - Schedule of Investments in following swap [Line Items]
Realized Gain/(Loss)	(446,306)
Change in Unrealized Gain/(Loss)	(1,537,399)
Fair Value as of December 31, 2020	0
Advance on swap appreciation	0
XXXVII L/S Select Swap [Member]
Swap Contracts (Details) - Schedule of Investments in following swap [Line Items]
Realized Gain/(Loss)	188,100
Change in Unrealized Gain/(Loss)	44,277
Fair Value as of December 31, 2020	0
Advance on swap appreciation	0
Brevan Howard [Member]
Swap Contracts (Details) - Schedule of Investments in following swap [Line Items]
Realized Gain/(Loss)	(97,745)
Change in Unrealized Gain/(Loss)	197,829
Fair Value as of December 31, 2020	0
Advance on swap appreciation	$ 0

Investments in Private Investme

Investments in Private Investment Companies (Details) - Schedule of private investment companies have certain redemption and liquidity restrictions - Frontier Funds [Member]	12 Months Ended
	Dec. 31, 2021
Multi-Strategy [Member] | Galaxy Plus Fund – JL Cyril Systematic Feeder Fund (547) LLC) [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Multi-Strategy [Member] | Galaxy Plus Fund - LRR Feeder Fund (522) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Multi-Strategy [Member] | Galaxy Plus Fund - Welton GDP Feeder Fund (538) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Multi-Strategy [Member] | Galaxy Plus Fund – Volt Diversified Alpha Feeder Fund (550) LLC) [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Trend Following [Member] | Galaxy Plus Fund - Aspect Feeder Fund (532) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Trend Following [Member] | Galaxy Plus Fund - Fort Contrarian Feeder Fund (510) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Trend Following [Member] | Galaxy Plus Fund - QIM Feeder Fund (526) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None
Trend Following [Member] | Galaxy Plus Fund - Quest Feeder Fund (517) LLC [Member]
Multi-Strategy
Redemptions Notice Period	24 hours
Redemptions Permitted	Daily
Liquidity Restrictions	None

Financial Highlights (Details_2

Financial Highlights (Details) - Schedule of financial highlights of trust - Frontier Funds [Member]		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Ratios to average net assets (1)
Net investment income/(loss)	[1]	(6.69%)	(5.71%)	(5.54%)	(6.27%)
Expenses before incentive fees	[2]	(6.06%)	(5.75%)	(5.71%)	(6.37%)
Expenses after incentive fees	[2]	(6.74%)	(5.75%)	(5.71%)	(6.52%)
Total return before incentive fees	[3]	5.32%	(32.58%)	(1.89%)	(16.86%)
Total return after incentive fees	[3]	4.65%	(32.58%)	(1.89%)	(17.01%)
[1]	Annualized with the exception of incentive fees.
[2]	Expense ratios do not reflect interest allocated to the Managing Owner as such expenses are not included in the Consolidated Statements of Operations of the Trust. See footnote 5.
[3]	Total returns are not annualized.

Derivative Instruments and He_8

Derivative Instruments and Hedging Activities (Details) - Schedule of net trading gain loss - Frontier Funds [Member] - Realized Trading Revenue from Futures, Forwards and Options [Member] - USD ($)		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Realized trading income/(loss)	[1]	$ 872,699	$ 598,263	$ (1,221,224)
Agriculturals [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Realized trading income/(loss)		191,851	147,013	215,822
Currencies [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Realized trading income/(loss)		96,075	90,903	(553,764)
Energies [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Realized trading income/(loss)		148,710	118,920	(430,890)
Interest rates [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Realized trading income/(loss)		108,590	59,037	273,302
Metals [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Realized trading income/(loss)		123,350	217,301	(691,581)
Stock indices [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Realized trading income/(loss)		$ 204,123	$ (34,911)	$ (34,113)
[1]	Amounts recorded in the Statements of Operations under Net realized gain(loss) on futures forwards and options.

Derivative Instruments and He_9

Derivative Instruments and Hedging Activities (Details) - Schedule of net trading gain loss - Net Change in Open Trade Equity from Futures, Forwards and Options [Member] - Frontier Fund [Member] - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments and Hedging Activities (Details) - Schedule of net trading gain loss [Line Items]
Change in unrealized trading income/(loss)	$ (89,306)	$ 30,465	$ 568,784
Agriculturals [Member]
Derivative Instruments and Hedging Activities (Details) - Schedule of net trading gain loss [Line Items]
Change in unrealized trading income/(loss)	(13,842)	27,115	516,390
Currencies [Member]
Derivative Instruments and Hedging Activities (Details) - Schedule of net trading gain loss [Line Items]
Change in unrealized trading income/(loss)	11,977	14,158	100,545
Energies [Member]
Derivative Instruments and Hedging Activities (Details) - Schedule of net trading gain loss [Line Items]
Change in unrealized trading income/(loss)	(14,160)	(25,335)	221,904
Interest rates [Member]
Derivative Instruments and Hedging Activities (Details) - Schedule of net trading gain loss [Line Items]
Change in unrealized trading income/(loss)	(37,684)	4,660	(231,584)
Metals [Member]
Derivative Instruments and Hedging Activities (Details) - Schedule of net trading gain loss [Line Items]
Change in unrealized trading income/(loss)	(28,136)	(1,619)	(92,782)
Stock indices [Member]
Derivative Instruments and Hedging Activities (Details) - Schedule of net trading gain loss [Line Items]
Change in unrealized trading income/(loss)	$ (7,461)	$ 11,486	$ 54,311

Derivative Instruments and H_10

Derivative Instruments and Hedging Activities (Details) - Schedule of gross and net information about the Trust's assets and liabilities - Frontier Funds [Member] - Open Trade Equity/(Deficit) [Member] - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Derivative Instruments and Hedging Activities (Details) - Schedule of gross and net information about the Trust's assets and liabilities [Line Items]
Gross Amounts of recognized Derivative Assets	$ 2,118,427	$ 814,743
Gross Amounts offset in the Statements of Financial Condition	(2,103,591)	(714,303)
Net Amounts Presented in the Statements of Financial	$ 14,836	$ 100,440