Condensed Schedule of Investments		Dec. 31, 2018 USD ($) Contract		Dec. 31, 2017 USD ($) Contract
Schedule of Investments [Line Items]
% of Partners' Capital		62.11%		21.66%
Total investment in the Funds	[1]	$ 83,239,963		$ 19,891,353
SECOR Alpha Master Fund L.P. [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		22.27%
Total investment in the Funds		$ 29,850,097
CMF FORT Contrarian Master Fund LLC [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		15.30%
Total investment in the Funds		$ 20,501,423
CMF AE Capital Master Fund LLC [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		11.64%
Total investment in the Funds		$ 15,603,718
Cambridge Master Fund L.P. [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		12.90%		21.66%
Total investment in the Funds		$ 17,284,725		$ 19,891,353
Futures Contracts [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		2,636,639		1,027,835
Total unrealized depreciation on open contracts		(664,769)		(471,939)
Net unrealized appreciation (depreciation) on open contracts		$ 1,971,870		$ 555,896
% of Partners' Capital		1.47%		0.61%
Futures Contracts [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 41,947		$ 19,411
Total unrealized depreciation on open contracts		(70,231)		(2,001)
Futures Contracts [Member] | Energy [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		647,829		435,850
Total unrealized depreciation on open contracts		(189,364)		(58,505)
Futures Contracts [Member] | Grains [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		160,024		105,003
Total unrealized depreciation on open contracts		(29,138)		(9,538)
Futures Contracts [Member] | Indices [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		196,704		147,860
Total unrealized depreciation on open contracts		(160,316)		(45,990)
Futures Contracts [Member] | Interest Rates U.S. [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		202,570		49,180
Total unrealized depreciation on open contracts		(1,281)		(3,938)
Futures Contracts [Member] | Interest Rates Non-U.S. [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		949,077		64,681
Total unrealized depreciation on open contracts		(28,242)		(197,490)
Futures Contracts [Member] | Livestock [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		26,050
Total unrealized depreciation on open contracts		(1,765)		(7,560)
Futures Contracts [Member] | Metals [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		140,316		105,894
Total unrealized depreciation on open contracts		(36,545)		(72,004)
Futures Contracts [Member] | Softs [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		272,122		99,956
Total unrealized depreciation on open contracts		(147,887)		(74,913)
Futures Contracts [Member] | Long [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts		$ 1,292,027		$ 426,400
% of Partners' Capital		0.96%		0.47%
Futures Contracts [Member] | Long [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		24		24
Net unrealized appreciation (depreciation) on open contracts		$ 8,090		$ 15,666
% of Partners' Capital		0.01%		0.02%
Futures Contracts [Member] | Long [Member] | Energy [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		121		152
Net unrealized appreciation (depreciation) on open contracts		$ 113,418		$ 368,725
% of Partners' Capital		0.08%		0.40%
Futures Contracts [Member] | Long [Member] | Grains [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		64
Net unrealized appreciation (depreciation) on open contracts		$ (9,337)
% of Partners' Capital		(0.01%)
Futures Contracts [Member] | Long [Member] | Indices [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		89		563
Net unrealized appreciation (depreciation) on open contracts		$ (75,222)		$ 82,109
% of Partners' Capital		(0.06%)		0.09%
Futures Contracts [Member] | Long [Member] | Interest Rates U.S. [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		109		3
Net unrealized appreciation (depreciation) on open contracts		$ 201,289		$ (695)
% of Partners' Capital		0.15%		0.00%	[2]
Futures Contracts [Member] | Long [Member] | Interest Rates Non-U.S. [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		2,512		412
Net unrealized appreciation (depreciation) on open contracts		$ 937,423		$ (178,430)
% of Partners' Capital		0.70%		(0.19%)
Futures Contracts [Member] | Long [Member] | Livestock [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		46
Net unrealized appreciation (depreciation) on open contracts		$ 25,025
% of Partners' Capital		0.02%
Futures Contracts [Member] | Long [Member] | Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		65		59
Net unrealized appreciation (depreciation) on open contracts		$ 91,341		$ 105,520
% of Partners' Capital		0.07%		0.11%
Futures Contracts [Member] | Long [Member] | Softs [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract				14
Net unrealized appreciation (depreciation) on open contracts				$ 33,505
% of Partners' Capital				0.04%
Futures Contracts [Member] | Short [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation (depreciation) on open contracts		$ 679,843		$ 129,496
% of Partners' Capital		0.51%		0.14%
Futures Contracts [Member] | Short [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		86		8
Net unrealized appreciation (depreciation) on open contracts		$ (36,374)		$ 1,744
% of Partners' Capital		(0.03%)		0.01%
Futures Contracts [Member] | Short [Member] | Energy [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		127		59
Net unrealized appreciation (depreciation) on open contracts		$ 345,047		$ 8,620
% of Partners' Capital		0.26%		0.01%
Futures Contracts [Member] | Short [Member] | Grains [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		444		321
Net unrealized appreciation (depreciation) on open contracts		$ 140,223		$ 95,465
% of Partners' Capital		0.11%		0.10%
Futures Contracts [Member] | Short [Member] | Indices [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		552		67
Net unrealized appreciation (depreciation) on open contracts		$ 111,610		$ 19,761
% of Partners' Capital		0.08%		0.02%
Futures Contracts [Member] | Short [Member] | Interest Rates U.S. [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract				96
Net unrealized appreciation (depreciation) on open contracts				$ 45,937
% of Partners' Capital				0.05%
Futures Contracts [Member] | Short [Member] | Interest Rates Non-U.S. [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		12		212
Net unrealized appreciation (depreciation) on open contracts		$ (16,588)		$ 45,621
% of Partners' Capital		(0.01%)		0.05%
Futures Contracts [Member] | Short [Member] | Livestock [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		7		7
Net unrealized appreciation (depreciation) on open contracts		$ (740)		$ (7,560)
% of Partners' Capital		0.00%	[2]	(0.01%)
Futures Contracts [Member] | Short [Member] | Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		77		22
Net unrealized appreciation (depreciation) on open contracts		$ 12,430		$ (71,630)
% of Partners' Capital		0.01%		(0.08%)
Futures Contracts [Member] | Short [Member] | Softs [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		315		160
Net unrealized appreciation (depreciation) on open contracts		$ 124,235		$ (8,462)
% of Partners' Capital		0.09%		(0.01%)
Forward Contracts [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 835,975		$ 494,616
Total unrealized depreciation on open contracts		(618,836)		(325,150)
Net unrealized appreciation (depreciation) on open contracts		$ 217,139		$ 169,466
% of Partners' Capital		0.16%		0.18%
Forward Contracts [Member] | Total Unrealized Appreciation on Open Contracts [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		0.62%		0.53%
Forward Contracts [Member] | Total Unrealized Depreciation on Open Contracts [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		0.46%		0.35%
Forward Contracts [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 443,534		$ 283,891
Unrealized Appreciation on Open Forward Contracts, Notional Amount		42,320,704		20,385,406
Total unrealized depreciation on open contracts		(549,780)		(167,812)
Unrealized Depreciation on Open Forward Contracts, Notional Amount		$ 39,926,876		$ 18,588,158
Forward Contracts [Member] | Currencies [Member] | Total Unrealized Appreciation on Open Contracts [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		0.33%		0.31%
Forward Contracts [Member] | Currencies [Member] | Total Unrealized Depreciation on Open Contracts [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		0.41%		0.18%
Forward Contracts [Member] | Metals [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 392,441		$ 210,725
Total unrealized depreciation on open contracts		$ (69,056)		$ (157,338)
Forward Contracts [Member] | Metals [Member] | Total Unrealized Appreciation on Open Contracts [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		0.29%		0.22%
Forward Contracts [Member] | Metals [Member] | Total Unrealized Depreciation on Open Contracts [Member]
Schedule of Investments [Line Items]
% of Partners' Capital		0.05%		0.17%
Forward Contracts [Member] | Net Unrealized Appreciation On Open Forward Contracts [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		42,320,704
Forward Contracts [Member] | Net Unrealized Appreciation On Open Forward Contracts [Member] | Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		103		56
Forward Contracts [Member] | Net Unrealized Depreciation On Open Forward Contracts [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		39,926,876
Forward Contracts [Member] | Net Unrealized Depreciation On Open Forward Contracts [Member] | Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts | Contract		36		30

[1] Defined in Note 1.

[2] Due to rounding.