Condensed Schedule of Investments		Dec. 31, 2018 USD ($) Derivative		Dec. 31, 2017 USD ($) Derivative
Futures [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation on open contracts		$ 286,618		$ 267,186
Percentage of Partners' Capital		1.67%		1.20%
Total unrealized appreciation on open contracts		$ 561,881		$ 722,562
Total unrealized depreciation on open contracts		(275,263)		(455,376)
Contracts Purchased [Member] | Futures [Member]
Schedule of Investments [Line Items]
Investment, Fair Value		$ 157,988		$ 225,388
Percentage of Partners' Capital		0.92%		1.01%
Contracts Sold [Member] | Futures [Member]
Schedule of Investments [Line Items]
Investment, Fair Value		$ 128,630		$ 41,798
Percentage of Partners' Capital		0.75%		0.19%
Metals [Member] | Futures [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 23,908		$ 59,445
Total unrealized depreciation on open contracts		$ (400)		$ (3,000)
Metals [Member] | Contracts Purchased [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		8		20
Investment, Fair Value		$ 19,310		$ 59,445
Percentage of Partners' Capital		0.11%		0.27%
Metals [Member] | Contracts Sold [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		7		4
Investment, Fair Value		$ 4,198		$ (3,000)
Percentage of Partners' Capital		0.02%		(0.01%)
Energy [Member] | Futures [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 63,201		$ 175,224
Total unrealized depreciation on open contracts		$ (83,350)		$ (82,362)
Energy [Member] | Contracts Purchased [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		11		61
Investment, Fair Value		$ (82,600)		$ 175,212
Percentage of Partners' Capital		(0.48%)		0.79%
Energy [Member] | Contracts Sold [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		12		32
Investment, Fair Value		$ 62,451		$ (82,350)
Percentage of Partners' Capital		0.36%		(0.37%)
Grains [Member] | Futures [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 67,071		$ 102,158
Total unrealized depreciation on open contracts		$ (930)		$ (7,954)
Grains [Member] | Contracts Purchased [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		1		2
Investment, Fair Value		$ (80)		$ (2,840)
Percentage of Partners' Capital		0.00%	[1]	(0.01%)
Grains [Member] | Contracts Sold [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		167		204
Investment, Fair Value		$ 66,221		$ 97,044
Percentage of Partners' Capital		0.39%		0.44%
Indices [Member] | Futures [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 67,303		$ 279,491
Total unrealized depreciation on open contracts		$ (67,877)		$ (110,784)
Indices [Member] | Contracts Purchased [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		16		347
Investment, Fair Value		$ (13,698)		$ 173,442
Percentage of Partners' Capital		(0.08%)		0.78%
Indices [Member] | Contracts Sold [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		89		21
Investment, Fair Value		$ 13,124		$ (4,735)
Percentage of Partners' Capital		0.08%		(0.02%)
Interest Rates U.S. [Member] | Futures [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 40,484		$ 45,321
Total unrealized depreciation on open contracts		$ (112,616)		$ (10,654)
Interest Rates U.S. [Member] | Contracts Purchased [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		98		14
Investment, Fair Value		$ 40,140		$ 7,062
Percentage of Partners' Capital		0.23%		0.03%
Interest Rates U.S. [Member] | Contracts Sold [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		134		213
Investment, Fair Value		$ (112,272)		$ 27,605
Percentage of Partners' Capital		(0.65%)		0.12%
Interest Rates Non-U.S. [Member] | Futures [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 191,985		$ 9,980
Total unrealized depreciation on open contracts		$ (8,061)		$ (236,497)
Interest Rates Non-U.S. [Member] | Contracts Purchased [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		974		204
Investment, Fair Value		$ 184,406		$ (226,963)
Percentage of Partners' Capital		1.07%		(1.02%)
Interest Rates Non-U.S. [Member] | Contracts Sold [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		10		240
Investment, Fair Value		$ (482)		$ 446
Percentage of Partners' Capital	[1]	0.00%		0.00%
Livestock [Member] | Futures [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 30		$ 3,770
Total unrealized depreciation on open contracts		$ (1,043)		$ (1,560)
Livestock [Member] | Contracts Purchased [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative				8
Investment, Fair Value				$ 3,750
Percentage of Partners' Capital				0.02%
Livestock [Member] | Contracts Sold [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		3		2
Investment, Fair Value		$ (1,013)		$ (1,540)
Percentage of Partners' Capital		(0.01%)		(0.01%)
Softs [Member] | Futures [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		$ 107,899		$ 47,173
Total unrealized depreciation on open contracts		$ (986)		$ (2,565)
Softs [Member] | Contracts Purchased [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		10		14
Investment, Fair Value		$ 10,510		$ 36,280
Percentage of Partners' Capital		0.07%		0.15%
Softs [Member] | Contracts Sold [Member] | Futures [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		77		22
Investment, Fair Value		$ 96,403		$ 8,328
Percentage of Partners' Capital		0.56%		0.04%
Forward Contracts [Member]
Schedule of Investments [Line Items]
Net unrealized appreciation on open contracts		$ 479,523		$ 205,060
Percentage of Partners' Capital		2.79%		0.92%
Total unrealized appreciation on open contracts		$ 1,333,455		$ 819,639
Total unrealized depreciation on open contracts		(853,932)		(614,579)
Forward Contracts [Member] | Metals [Member]
Schedule of Investments [Line Items]
Total unrealized appreciation on open contracts		171,195		167,165
Total unrealized depreciation on open contracts		(126,750)		(75,045)
Forward Contracts [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Notional		74,536,326		48,393,022
Total unrealized appreciation on open contracts		1,162,260		652,474
Notional		51,277,538		35,002,762
Total unrealized depreciation on open contracts		$ (727,182)		$ (539,534)
Unrealized Appreciation [Member] | Forward Contracts [Member]
Schedule of Investments [Line Items]
Percentage of Partners' Capital		7.76%		3.68%
Unrealized Appreciation [Member] | Forward Contracts [Member] | Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		60		39
Percentage of Partners' Capital		1.00%		0.75%
Unrealized Appreciation [Member] | Forward Contracts [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Percentage of Partners' Capital		6.76%		2.93%
Unrealized Depreciation [Member] | Forward Contracts [Member]
Schedule of Investments [Line Items]
Percentage of Partners' Capital		(4.97%)		(2.76%)
Unrealized Depreciation [Member] | Forward Contracts [Member] | Metals [Member]
Schedule of Investments [Line Items]
Number of Contracts | Derivative		42		14
Percentage of Partners' Capital		(0.74%)		(0.34%)
Unrealized Depreciation [Member] | Forward Contracts [Member] | Currencies [Member]
Schedule of Investments [Line Items]
Percentage of Partners' Capital		(4.23%)		(2.42%)

[1] Due to rounding.