Futures Portfolio Fund 10-K20 Mar 182017 FY Annual reportFinancial data

Company Profile

Document and Entity Information

Document and Entity Information	12 Months Ended
Document and Entity Information	Dec. 31, 2017
Document And Entity Information
Entity Registrant Name	FUTURES PORTFOLIO FUND L.P.
Entity Central Index Key	861,441
Document Type	10-K
Trading Symbol	FPF
Document Period End Date	Dec. 31, 2017
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Entity a Well-known Seasoned Issuer	No
Entity a Voluntary Filer	No
Entity's Reporting Status Current	Yes
Entity Filer Category	Non-accelerated Filer
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2,017

Consolidated Statements of Fina

Consolidated Statements of Financial Condition - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Equity in broker trading accounts
Cash	$ 45,780,428	$ 80,906,352
Net unrealized gain (loss) on open futures contracts	8,930,417	8,921,229
Net unrealized gain (loss) on open forward currency contracts	1,902,516	830,153
Total equity in broker trading accounts	56,613,361	90,657,734
Cash and cash equivalents	44,360,633	37,230,210
Investment in SMFSF, at fair value (cost $29,594,058)	34,101,936
Investments in securities, at fair value (cost $237,596,840 and $424,687,833)	237,378,016	424,440,330
Certificates of deposit, at fair value (cost $0 and $35,406,974)		35,576,495
General Partner 1% allocation receivable		98,751
Exchange membership, at fair value (cost $189,000)	232,000
Subscriptions receivable		381,917
Total assets	372,685,946	588,385,437
Liabilities
Trading Advisor management fees payable	569,189	885,524
Trading Advisor incentive fees payable	1,297,698	1,581,179
Commissions and other trading fees payable on open contracts	83,313	122,720
Cash Managers fees payable	75,371	102,622
General Partner management and performance fees payable	460,536	682,546
General Partner 1% allocation payable	28,756
Selling agent and broker dealer servicing fees payable - General Partner	434,439	630,727
Administrative fee payable - General Partner	88,542	127,136
Investment Manager fees payable		128,682
Distribution (12b-1) fees payable		2,961
Operating services fee payable		17,648
Redemptions payable	11,825,677	18,217,216
Subscriptions received in advance	287,000	2,687,191
Total liabilities	15,150,521	25,186,152
Partners' Capital (Net Asset Value)
Non-controlling interest		34,477,673
Total partners' capital (net asset value)	357,535,425	563,199,285
Total liabilities and partners' capital (net asset value)	372,685,946	588,385,437
Class A [Member]
Partners' Capital (Net Asset Value)
Total partners' capital (net asset value)	240,860,323	347,445,757
Class B [Member]
Partners' Capital (Net Asset Value)
Total partners' capital (net asset value)	100,657,081	177,512,074
Class I [Member]
Partners' Capital (Net Asset Value)
Total partners' capital (net asset value)	3,547,299	$ 3,763,781
Class R [Member]
Partners' Capital (Net Asset Value)
Total partners' capital (net asset value)	$ 12,470,722

Consolidated Statements of Fin3

Consolidated Statements of Financial Condition (Parenthetical) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Investment in SMFSF, at fair value (cost $29,594,058)	$ 34,101,936
Investments in securities, at fair value	237,596,840	$ 424,687,833
Certificates of deposit (CDs), at fair value	0	$ 35,406,974
Exchange membership, at fair value	$ 189,000
General partner allocation percentage	1.00%	1.00%
Class A [Member]
Partners' Capital, units outstanding	58,081.8421	84,825.0303
Class B [Member]
Partners' Capital, units outstanding	16,061.6377	29,193.8071
Class I [Member]
Partners' Capital, units outstanding	3,466.2779	3,828.4541
Class R [Member]
Partners' Capital, units outstanding	12,013.6394	0

Consolidated Condensed Schedule

Consolidated Condensed Schedule of Investments U.S. Treasury Securities - USD ($)		Dec. 31, 2017	Dec. 31, 2016
% of Partners' Capital (Net Asset Value)		66.39%	81.68%
Investment Owned, at Cost		$ 237,596,840	$ 424,687,833
U.S. Treasury Securities [Member]
Fair Value		$ 58,329,191	$ 91,313,694
% of Partners' Capital (Net Asset Value)		16.31%	16.21%
Investment Owned, at Cost		$ 58,285,077	$ 91,318,791
U.S. Treasury Securities [Member] \| 0.29% U.S. Treasury Due 2017-01-12 [Member]
Face Value			$ 20,000,000
% Yield	[1]		0.29%
Fair Value			$ 19,997,500
% of Partners' Capital (Net Asset Value)			3.55%
U.S. Treasury Securities [Member] \| 0.5% U.S. Treasury Due 2017-01-31 [Member]
Face Value			$ 7,650,000
% Yield	[1]		0.50%
Fair Value			$ 7,665,089
% of Partners' Capital (Net Asset Value)			1.36%
U.S. Treasury Securities [Member] \| 0.43% U.S. Treasury Due 2017-02-16 [Member]
Face Value			$ 20,000,000
% Yield	[1]		0.43%
Fair Value			$ 19,988,642
% of Partners' Capital (Net Asset Value)			3.55%
U.S. Treasury Securities [Member] \| 0.5% U.S. Treasury Due 2017-02-28 [Member]
Face Value			$ 6,950,000
% Yield	[1]		0.50%
Fair Value			$ 6,960,695
% of Partners' Capital (Net Asset Value)			1.24%
U.S. Treasury Securities [Member] \| 0.49% U.S. Treasury Due 2017-03-16 [Member]
Face Value			$ 20,000,000
% Yield	[1]		0.49%
Fair Value			$ 19,979,583
% of Partners' Capital (Net Asset Value)			3.55%
U.S. Treasury Securities [Member] \| 0.63% U.S. Treasury Due 2017-05-31 [Member]
Face Value			$ 3,000,000
% Yield	[1]		0.63%
Fair Value			$ 3,001,528
% of Partners' Capital (Net Asset Value)			0.53%
U.S. Treasury Securities [Member] \| 0.88% U.S. Treasury Due 2017-08-15 [Member]
Face Value			$ 4,900,000
% Yield	[1]		0.88%
Fair Value			$ 4,920,747
% of Partners' Capital (Net Asset Value)			0.87%
U.S. Treasury Securities [Member] \| 1.88% U.S. Treasury Due 2017-08-31 [Member]
Face Value			$ 5,000,000
% Yield	[1]		1.88%
Fair Value			$ 5,067,204
% of Partners' Capital (Net Asset Value)			0.90%
U.S. Treasury Securities [Member] \| 2.88% U.S. Treasury Due 2018-03-31 [Member]
Face Value			$ 1,500,000
% Yield	[1]		2.88%
Fair Value			$ 1,546,105
% of Partners' Capital (Net Asset Value)			0.27%
U.S. Treasury Securities [Member] \| 0.75% U.S. Treasury Due 2018-10-31 [Member]
Face Value			$ 2,200,000
% Yield	[1]		0.75%
Fair Value			$ 2,186,601
% of Partners' Capital (Net Asset Value)			0.39%
U.S. Treasury Securities [Member] \| 1.03% U.S. Treasury Due 2018-01-11 [Member]
Face Value		$ 15,000,000
% Yield	[1]	1.03%
Fair Value		$ 14,994,718
% of Partners' Capital (Net Asset Value)		4.19%
U.S. Treasury Securities [Member] \| 1.24% U.S. Treasury Due 2018-02-15 [Member]
Face Value		$ 12,000,000
% Yield	[1]	1.24%
Fair Value		$ 11,980,967
% of Partners' Capital (Net Asset Value)		3.35%
U.S. Treasury Securities [Member] \| 1.00% U.S. Treasury Due 2018-02-15 [Member]
Face Value		$ 5,250,000
% Yield	[1]	1.00%
Fair Value		$ 5,267,888
% of Partners' Capital (Net Asset Value)		1.47%
U.S. Treasury Securities [Member] \| 1.31% U.S. Treasury Due 2018-03-15 [Member]
Face Value		$ 15,000,000
% Yield	[1]	1.31%
Fair Value		$ 14,960,225
% of Partners' Capital (Net Asset Value)		4.18%
U.S. Treasury Securities [Member] \| 2.63% U.S. Treasury Due 2018-04-30 [Member]
Face Value		$ 4,000,000
% Yield	[1]	2.63%
Fair Value		$ 4,033,583
% of Partners' Capital (Net Asset Value)		1.14%
U.S. Treasury Securities [Member] \| 2.25% U.S. Treasury Due 2018-07-31 [Member]
Face Value		$ 7,000,000
% Yield	[1]	2.25%
Fair Value		$ 7,091,810
% of Partners' Capital (Net Asset Value)		1.98%

[1]	Represents the annualized yield at date of purchase for discount securities, the stated coupon rate for coupon-bearing securities, or the stated interest rate for certificates of deposit.

Consolidated Condensed Schedul5

Consolidated Condensed Schedule of Investments Commercial Paper - USD ($)		Dec. 31, 2017	Dec. 31, 2016
% of Partners' Capital (Net Asset Value)		66.39%	81.68%
Investment Owned, at Cost		$ 237,596,840	$ 424,687,833
Commercial Paper [Member]
Fair Value		$ 38,174,305	$ 67,749,447
% of Partners' Capital (Net Asset Value)		10.68%	12.03%
Investment Owned, at Cost		$ 38,118,535	$ 67,618,229
Commercial Paper [Member] \| U.S. Commercial Paper [Member]
Fair Value		$ 30,479,713	$ 52,068,922
% of Partners' Capital (Net Asset Value)		8.52%	9.25%
Investment Owned, at Cost		$ 30,434,788	$ 52,010,283
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Automotive [Member] \| 0.63% American Honda Finance Corporation Due 2017-01-11 [Member]
Face Value			$ 500,000
% Yield	[1]		0.63%
Fair Value			$ 499,912
% of Partners' Capital (Net Asset Value)			0.09%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Automotive [Member] \| 0.66% American Honda Finance Corporation Due 2017-01-27 [Member]
Face Value			$ 1,500,000
% Yield	[1]		0.66%
Fair Value			$ 1,499,285
% of Partners' Capital (Net Asset Value)			0.27%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Automotive [Member] \| 1.38% Caterpillar Financial Services Corporation Due 2018-01-22 [Member]
Face Value			$ 1,200,000
% Yield	[1]		1.00%
Fair Value			$ 1,198,467
% of Partners' Capital (Net Asset Value)			0.21%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Automotive [Member] \| 0.92% Ford Motor Credit Company LLC Due 2017-01-24 [Member]
Face Value			$ 1,900,000
% Yield	[1]		0.92%
Fair Value			$ 1,898,883
% of Partners' Capital (Net Asset Value)			0.34%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Automotive [Member] \| 1.93% Ford Motor Credit Company LLC Due 2017-11-06 [Member]
Face Value			$ 750,000
% Yield	[1]		1.93%
Fair Value			$ 737,696
% of Partners' Capital (Net Asset Value)			0.13%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Automotive [Member] \| 1.54% Hyundai Capital America Due 2018-01-24 [Member]
Face Value		$ 1,500,000	$ 2,000,000
% Yield	[1]	1.54%	1.02%
Fair Value		$ 1,498,535	$ 1,998,923
% of Partners' Capital (Net Asset Value)		0.42%	0.35%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Automotive [Member] \| 1.32% Nissan Motor Acceptance Corporation Due 2018-01-03 [Member]
Face Value		$ 1,500,000	$ 500,000
% Yield	[1]	1.32%	0.80%
Fair Value		$ 1,499,890	$ 499,956
% of Partners' Capital (Net Asset Value)		0.42%	0.09%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Banks [Member] \| 0.9% Credit Suisse (USA), Inc. Due 2017-02-21 [Member]
Face Value			$ 500,000
% Yield	[1]		0.90%
Fair Value			$ 499,363
% of Partners' Capital (Net Asset Value)			0.09%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Banks [Member] \| 1.51% Danske Corporation Due 2017-08-24 [Member]
Face Value			$ 1,700,000
% Yield	[1]		1.51%
Fair Value			$ 1,683,257
% of Partners' Capital (Net Asset Value)			0.30%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Banks [Member] \| 0.93% Mitsubishi UFJ Trust & Banking Corp Due 2017-01-23 [Member]
Face Value			$ 1,500,000
% Yield	[1]		0.93%
Fair Value			$ 1,499,148
% of Partners' Capital (Net Asset Value)			0.27%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Banks [Member] \| 0.87% Mitsubishi UFJ Trust & Banking Corp Due 2017-02-03 [Member]
Face Value			$ 500,000
% Yield	[1]		0.87%
Fair Value			$ 499,601
% of Partners' Capital (Net Asset Value)			0.09%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Banks [Member] \| 0.88% Mizuho Bank, Ltd. Due 2017-01-17 [Member]
Face Value			$ 2,100,000
% Yield	[1]		0.88%
Fair Value			$ 2,099,179
% of Partners' Capital (Net Asset Value)			0.37%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Banks [Member] \| 0.89% Oversea-Chinese Banking Corporation Ltd Due 2017-02-16 [Member]
Face Value			$ 400,000
% Yield	[1]		0.89%
Fair Value			$ 399,545
% of Partners' Capital (Net Asset Value)			0.07%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Banks [Member] \| 1.43% Standard Chartered Bank Due 2018-02-05 [Member]
Face Value		$ 1,600,000	$ 1,800,000
% Yield	[1]	1.43%	1.52%
Fair Value		$ 1,597,791	$ 1,780,787
% of Partners' Capital (Net Asset Value)		0.44%	0.32%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Banks [Member] \| 0.8% Sumitomo Mitsui Banking Corporation Due 2017-01-18 [Member]
Face Value			$ 500,000
% Yield	[1]		0.80%
Fair Value			$ 499,811
% of Partners' Capital (Net Asset Value)			0.09%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Banks [Member] \| 0.86% Sumitomo Mitsui Banking Corporation Due 2017-02-01 [Member]
Face Value			$ 1,600,000
% Yield	[1]		0.86%
Fair Value			$ 1,598,815
% of Partners' Capital (Net Asset Value)			0.28%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Banks [Member] \| 1.03% Toronto Dominion Holdings (U.S.A.), Inc. Due 2017-03-14 [Member]
Face Value			$ 500,000
% Yield	[1]		1.03%
Fair Value			$ 498,970
% of Partners' Capital (Net Asset Value)			0.09%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Banks [Member] \| 1.03% Toronto Dominion Holdings (U.S.A.), Inc. Due 2017-03-24 [Member]
Face Value			$ 1,500,000
% Yield	[1]		1.03%
Fair Value			$ 1,496,481
% of Partners' Capital (Net Asset Value)			0.27%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Banks [Member] \| 1.53% United Overseas Bank Limited Due 2018-02-20 [Member]
Face Value		$ 1,500,000	$ 2,000,000
% Yield	[1]	1.53%	0.90%
Fair Value		$ 1,496,833	$ 1,997,450
% of Partners' Capital (Net Asset Value)		0.41%	0.35%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Banks [Member] \| 1.37% Nieuw Amsterdam Receivables Corporation Due 2018-01-10 [Member]
Face Value		$ 1,500,000
% Yield	[1]	1.37%
Fair Value		$ 1,499,486
% of Partners' Capital (Net Asset Value)		0.42%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Beverages [Member] \| 1.68% Brown-Forman Corporation Due 2018-01-29 [Member]
Face Value		$ 1,500,000	$ 1,600,000
% Yield	[1]	1.68%	0.60%
Fair Value		$ 1,498,052	$ 1,599,867
% of Partners' Capital (Net Asset Value)		0.42%	0.28%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Beverages [Member] \| 0.73% Brown-Forman Corporation Due 2017-01-09 [Member]
Face Value			$ 500,000
% Yield	[1]		0.73%
Fair Value			$ 499,919
% of Partners' Capital (Net Asset Value)			0.09%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Diversifie Financial Services [Member] \| 0.97% American Express Credit Corporation Due 2017-02-02 [Member]
Face Value			$ 2,200,000
% Yield	[1]		0.97%
Fair Value			$ 2,198,103
% of Partners' Capital (Net Asset Value)			0.39%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Diversifie Financial Services [Member] \| 0.83% DCAT, LLC Due 2017-01-10 [Member]
Face Value		$ 1,600,000	$ 1,600,000
% Yield	[1]	1.46%	0.83%
Fair Value		$ 1,598,904	$ 1,599,668
% of Partners' Capital (Net Asset Value)		0.45%	0.28%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Diversifie Financial Services [Member] \| 1.03% Gotham Funding Corporation Due 2017-03-07 [Member]
Face Value		$ 1,500,000	$ 1,500,000
% Yield	[1]	1.36%	1.03%
Fair Value		$ 1,499,377	$ 1,497,210
% of Partners' Capital (Net Asset Value)		0.42%	0.27%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Diversifie Financial Services [Member] \| 0.59% Intercontinental Exchange, Inc. Due 2017-01-27 [Member]
Face Value			$ 500,000
% Yield	[1]		0.59%
Fair Value			$ 499,787
% of Partners' Capital (Net Asset Value)			0.09%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Diversifie Financial Services [Member] \| 0.82% Intercontinental Exchange, Inc. Due 2017-02-13 [Member]
Face Value			$ 1,600,000
% Yield	[1]		0.82%
Fair Value			$ 1,598,433
% of Partners' Capital (Net Asset Value)			0.28%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Diversifie Financial Services [Member] \| 0.8% J.P. Morgan Securities LLC Due 2017-02-01 [Member]
Face Value			$ 1,600,000
% Yield	[1]		0.80%
Fair Value			$ 1,598,898
% of Partners' Capital (Net Asset Value)			0.28%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Diversifie Financial Services [Member] \| 1.35% Liberty Street Funding LLC Due 2018-01-09 [Member]
Face Value		$ 1,500,000	$ 1,600,000
% Yield	[1]	1.35%	0.70%
Fair Value		$ 1,499,550	$ 1,599,222
% of Partners' Capital (Net Asset Value)		0.42%	0.28%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Diversifie Financial Services [Member] \| 1.34% Manhattan Asset Funding Company LLC Due 2018-01-04 [Member]
Face Value		$ 1,600,000	$ 1,500,000
% Yield	[1]	1.34%	0.80%
Fair Value		$ 1,599,821	$ 1,499,700
% of Partners' Capital (Net Asset Value)		0.45%	0.27%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Diversifie Financial Services [Member] \| 1.43% Regency Markets No. 1, LLC Due 2018-01-05 [Member]
Face Value		$ 1,500,000
% Yield	[1]	1.43%
Fair Value		$ 1,499,763
% of Partners' Capital (Net Asset Value)		0.42%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Electronics [Member] \| 0.95% Amphenol Corporation Due 2017-01-19 [Member]
Face Value			$ 1,300,000
% Yield	[1]		0.95%
Fair Value			$ 1,299,382
% of Partners' Capital (Net Asset Value)			0.23%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Energy [Member] \| 0.97% Dominion Resources, Inc. Due 2017-01-17 [Member]
Face Value			$ 1,400,000
% Yield	[1]		0.97%
Fair Value			$ 1,399,396
% of Partners' Capital (Net Asset Value)			0.25%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Energy [Member] \| 1.03% Dominion Resources, Inc. Due 2017-01-17 [Member]
Face Value			$ 500,000
% Yield	[1]		1.03%
Fair Value			$ 499,771
% of Partners' Capital (Net Asset Value)			0.09%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Energy [Member] \| 0.97% Enterprise Products Operating LLC Due 2017-01-06 [Member]
Face Value			$ 2,000,000
% Yield	[1]		0.97%
Fair Value			$ 1,999,731
% of Partners' Capital (Net Asset Value)			0.36%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Energy [Member] \| 1.86% Sempra Energy Global Enterprises Due 2018-01-19 [Member]
Face Value		$ 1,600,000	$ 500,000
% Yield	[1]	1.86%	1.15%
Fair Value		$ 1,598,520	$ 499,617
% of Partners' Capital (Net Asset Value)		0.44%	0.09%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Energy [Member] \| 1.63% Oglethorpe Power Corporation Due 2018-01-25 [Member]
Face Value		$ 1,500,000
% Yield	[1]	1.63%
Fair Value		$ 1,498,380
% of Partners' Capital (Net Asset Value)		0.42%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Energy [Member] \| 1.71% Southern Company Funding Corporation Due 2018-01-10 [Member]
Face Value		$ 1,500,000
% Yield	[1]	1.71%
Fair Value		$ 1,499,363
% of Partners' Capital (Net Asset Value)		0.42%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Healthcare [Member] \| 0.83% Catholic Health Initiatives Due 2017-01-05 [Member]
Face Value			$ 2,100,000
% Yield	[1]		0.83%
Fair Value			$ 2,099,806
% of Partners' Capital (Net Asset Value)			0.37%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Householdproducts [Member] \| 0.54% Unilever Capital Corporation Due 2017-01-09 [Member]
Face Value			$ 400,000
% Yield	[1]		0.54%
Fair Value			$ 399,952
% of Partners' Capital (Net Asset Value)			0.07%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Insurance [Member] \| 0.58% Nationwide Life Insurance Company Due 2017-01-13 [Member]
Face Value			$ 2,200,000
% Yield	[1]		0.58%
Fair Value			$ 2,199,575
% of Partners' Capital (Net Asset Value)			0.39%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Insurance [Member] \| 0.35% AXA Financial, Inc. Due 2016-01-12 [Member]
Face Value		$ 1,500,000
% Yield	[1]	1.42%
Fair Value		$ 1,499,001
% of Partners' Capital (Net Asset Value)		0.42%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Manufacturing [Member] \| 0.9% Parker-Hannifin Corporation Due 2017-01-12 [Member]
Face Value			$ 500,000
% Yield	[1]		0.90%
Fair Value			$ 499,863
% of Partners' Capital (Net Asset Value)			0.09%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Media [Member] \| 1% CBS Corporation Due 2017-01-25 [Member]
Face Value			$ 1,500,000
% Yield	[1]		1.00%
Fair Value			$ 1,499,000
% of Partners' Capital (Net Asset Value)			0.27%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Pharmaceuticals [Member] \| 0.71% Pfizer Inc. Due 2017-03-20 [Member]
Face Value			$ 2,200,000
% Yield	[1]		0.71%
Fair Value			$ 2,196,514
% of Partners' Capital (Net Asset Value)			0.39%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| REIT [Member] \| 0.62% Simon Property Group, L.P. Due 2017-01-04 [Member]
Face Value			$ 400,000
% Yield	[1]		0.62%
Fair Value			$ 399,979
% of Partners' Capital (Net Asset Value)			0.07%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Computers [Member] \| 0.92% Hewlett Packard Enterprise Company Due 2016-01-20 [Member]
Face Value		$ 1,500,000
% Yield	[1]	1.62%
Fair Value		$ 1,499,530
% of Partners' Capital (Net Asset Value)		0.42%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Electronic equipment [Member] \| 1.78% Molex Electronic Technologies, LLC Due 2018-01-16 [Member]
Face Value		$ 1,500,000
% Yield	[1]	1.78%
Fair Value		$ 1,498,894
% of Partners' Capital (Net Asset Value)		0.42%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Nonprofit [Member] \| 1.32% The Salvation Army Due 2018-01-05 [Member]
Face Value		$ 1,600,000
% Yield	[1]	1.32%
Fair Value		$ 1,599,765
% of Partners' Capital (Net Asset Value)		0.45%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Manufactoring [Member] \| 1.38% Caterpillar Financial Services Corporation Due 2018-01-22 [Member]
Face Value		$ 1,500,000
% Yield	[1]	1.38%
Fair Value		$ 1,498,801
% of Partners' Capital (Net Asset Value)		0.42%
Commercial Paper [Member] \| U.S. Commercial Paper [Member] \| Semiconductors [Member] \| 1.64% Lam Research Corporation Due 2018-01-09 [Member]
Face Value		$ 1,500,000
% Yield	[1]	1.64%
Fair Value		$ 1,499,457
% of Partners' Capital (Net Asset Value)		0.42%
Commercial Paper [Member] \| Foreign Commercial Paper [Member]
Fair Value		$ 7,694,592	$ 15,680,525
% of Partners' Capital (Net Asset Value)		2.16%	2.78%
Investment Owned, at Cost		$ 7,683,747	$ 15,607,946
Commercial Paper [Member] \| Foreign Commercial Paper [Member] \| Automotive [Member] \| 0.66% John Deere Financial Limited Due 2017-01-10 [Member]
Face Value			$ 400,000
% Yield	[1]		0.66%
Fair Value			$ 399,933
% of Partners' Capital (Net Asset Value)			0.07%
Commercial Paper [Member] \| Foreign Commercial Paper [Member] \| Automotive [Member] \| 0.92% Magna International Inc. Due 2017-01-04 [Member]
Face Value			$ 2,100,000
% Yield	[1]		0.92%
Fair Value			$ 2,099,839
% of Partners' Capital (Net Asset Value)			0.37%
Commercial Paper [Member] \| Foreign Commercial Paper [Member] \| Banks [Member] \| 1.23% Bank of China Limited Due 2017-03-06 [Member]
Face Value			$ 900,000
% Yield	[1]		1.23%
Fair Value			$ 897,982
% of Partners' Capital (Net Asset Value)			0.16%
Commercial Paper [Member] \| Foreign Commercial Paper [Member] \| Banks [Member] \| 0.87% DBS Bank Ltd. Due 2017-01-04 [Member]
Face Value		$ 1,600,000	$ 1,500,000
% Yield	[1]	135.47%	0.87%
Fair Value		$ 1,599,760	$ 1,499,891
% of Partners' Capital (Net Asset Value)		0.45%	0.27%
Commercial Paper [Member] \| Foreign Commercial Paper [Member] \| Banks [Member] \| 1% Nordea Bank AB Due 2017-03-09 [Member]
Face Value			$ 400,000
% Yield	[1]		1.00%
Fair Value			$ 399,256
% of Partners' Capital (Net Asset Value)			0.07%
Commercial Paper [Member] \| Foreign Commercial Paper [Member] \| Banks [Member] \| 169.84% Bank of Nova Scotia Due 2018-02-02 [Member]
Face Value		$ 1,500,000
% Yield	[1]	169.84%
Fair Value		$ 1,497,746
% of Partners' Capital (Net Asset Value)		0.42%
Commercial Paper [Member] \| Foreign Commercial Paper [Member] \| Banks [Member] \| 130.43% KfW (Kreditanstalt fur Wiederaufbau) Due 2018-01-04 [Member]
Face Value		$ 1,500,000
% Yield	[1]	130.43%
Fair Value		$ 1,499,838
% of Partners' Capital (Net Asset Value)		0.42%
Commercial Paper [Member] \| Foreign Commercial Paper [Member] \| Diversifie Financial Services [Member] \| 1.32% ICBCIL Finance Co. Limited Due 2017-01-25 [Member]
Face Value			$ 316,581
% Yield	[1]		1.32%
Fair Value			$ 316,295
% of Partners' Capital (Net Asset Value)			0.06%
Commercial Paper [Member] \| Foreign Commercial Paper [Member] \| Diversifie Financial Services [Member] \| 0.76% KfW Due 2017-01-04 [Member]
Face Value			$ 500,000
% Yield	[1]		0.76%
Fair Value			$ 499,969
% of Partners' Capital (Net Asset Value)			0.09%
Commercial Paper [Member] \| Foreign Commercial Paper [Member] \| Energy [Member] \| 1.56% Electricite de France Due 2017-01-06 [Member]
Face Value			$ 1,200,000
% Yield	[1]		1.56%
Fair Value			$ 1,199,838
% of Partners' Capital (Net Asset Value)			0.21%
Commercial Paper [Member] \| Foreign Commercial Paper [Member] \| Energy [Member] \| 1.56% Electricite de France Due 2017-01-09 [Member]
Face Value			$ 800,000
% Yield	[1]		1.56%
Fair Value			$ 799,844
% of Partners' Capital (Net Asset Value)			0.14%
Commercial Paper [Member] \| Foreign Commercial Paper [Member] \| Energy [Member] \| 165.71% Total Capital Canada Ltd. Due 2018-01-08 [Member]
Face Value		$ 1,500,000
% Yield	[1]	165.71%
Fair Value		$ 1,499,519
% of Partners' Capital (Net Asset Value)		0.42%
Commercial Paper [Member] \| Foreign Commercial Paper [Member] \| Householdproducts [Member] \| 0.8% Reckitt Benckiser Treasury Services PLC Due 2017-02-07 [Member]
Face Value			$ 500,000
% Yield	[1]		0.80%
Fair Value			$ 499,589
% of Partners' Capital (Net Asset Value)			0.09%
Commercial Paper [Member] \| Foreign Commercial Paper [Member] \| Householdproducts [Member] \| 1.26% Reckitt Benckiser Treasury Services PLC Due 2017-08-30 [Member]
Face Value			$ 1,800,000
% Yield	[1]		1.26%
Fair Value			$ 1,784,813
% of Partners' Capital (Net Asset Value)			0.31%
Commercial Paper [Member] \| Foreign Commercial Paper [Member] \| Chemical [Member] \| 0.6% BASF SE Due 2017-01-06 [Member]
Face Value			$ 500,000
% Yield	[1]		0.60%
Fair Value			$ 499,958
% of Partners' Capital (Net Asset Value)			0.09%
Commercial Paper [Member] \| Foreign Commercial Paper [Member] \| Chemical [Member] \| 1.16% BASF SE Due 2017-01-09 [Member]
Face Value			$ 1,500,000
% Yield	[1]		1.16%
Fair Value			$ 1,499,788
% of Partners' Capital (Net Asset Value)			0.27%
Commercial Paper [Member] \| Foreign Commercial Paper [Member] \| Telecommunication [Member] \| 0.8% Telstra Corporation Limited Due 2017-01-23 [Member]
Face Value			$ 400,000
% Yield	[1]		0.80%
Fair Value			$ 399,804
% of Partners' Capital (Net Asset Value)			0.07%
Commercial Paper [Member] \| Foreign Commercial Paper [Member] \| Telecommunication [Member] \| 0.9% Telstra Corporation Limited Due 2017-02-28 [Member]
Face Value			$ 1,700,000
% Yield	[1]		0.90%
Fair Value			$ 1,697,535
% of Partners' Capital (Net Asset Value)			0.30%
Commercial Paper [Member] \| Foreign Commercial Paper [Member] \| Telecommunication [Member] \| 1.63% Vodafone Group PLC Due 2017-09-13 [Member]
Face Value			$ 1,200,000
% Yield	[1]		1.63%
Fair Value			$ 1,186,191
% of Partners' Capital (Net Asset Value)			0.21%
Commercial Paper [Member] \| Foreign Commercial Paper [Member] \| Telecommunications [Member] \| 0.8% Telstra Corporation Limited Due 2017-01-23 [Member]
Face Value		$ 1,600,000
% Yield	[1]	146.64%
Fair Value		$ 1,597,729
% of Partners' Capital (Net Asset Value)		0.45%

[1]	Represents the annualized yield at date of purchase for discount securities, the stated coupon rate for coupon-bearing securities, or the stated interest rate for certificates of deposit.

Consolidated Condensed Schedul6

Consolidated Condensed Schedule of Investments Corporate Notes - USD ($)		Dec. 31, 2017	Dec. 31, 2016
% of Partners' Capital (Net Asset Value)		66.39%	81.68%
Investment Owned, at Cost		$ 237,596,840	$ 424,687,833
Corporate Notes [Member]
Fair Value		$ 129,299,879	$ 229,354,824
% of Partners' Capital (Net Asset Value)		36.16%	40.72%
Investment Owned, at Cost		$ 129,608,811	$ 229,719,821
Corporate Notes [Member] \| U.S. Corporate Notes [Member]
Fair Value		$ 94,039,929	$ 186,349,217
% of Partners' Capital (Net Asset Value)		26.30%	33.08%
Investment Owned, at Cost		$ 94,458,841	$ 186,803,378
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Automotive [Member] \| 1.34% American Honda Finance Corporation Due 2018-07-13 [Member]
Face Value			$ 566,000
% Yield	[1]		1.34%
Fair Value			$ 569,573
% of Partners' Capital (Net Asset Value)			0.10%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Automotive [Member] \| 1.74% American Honda Finance Corporation Due 2019-02-22 [Member]
Face Value			$ 368,000
% Yield	[1]		1.74%
Fair Value			$ 372,243
% of Partners' Capital (Net Asset Value)			0.07%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Automotive [Member] \| 1.13% Daimler Finance North America LLC Due 2017-03-10 [Member]
Face Value		$ 5,700,000	$ 438,000
% Yield	[1]	1.91%	1.13%
Fair Value		$ 5,709,253	$ 439,422
% of Partners' Capital (Net Asset Value)		1.60%	0.08%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Automotive [Member] \| 1.59% Daimler Finance North America LLC Due 2017-08-03 [Member]
Face Value			$ 649,000
% Yield	[1]		1.59%
Fair Value			$ 652,390
% of Partners' Capital (Net Asset Value)			0.12%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Automotive [Member] \| 1.35% Daimler Finance North America LLC Due 2018-03-02 [Member]
Face Value			$ 6,700,000
% Yield	[1]		1.35%
Fair Value			$ 6,706,690
% of Partners' Capital (Net Asset Value)			1.19%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Automotive [Member] \| 1.81% Ford Motor Credit Company LLC Due 2018-01-09 [Member]
Face Value			$ 7,350,000
% Yield	[1]		1.81%
Fair Value			$ 7,400,100
% of Partners' Capital (Net Asset Value)			1.31%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Automotive [Member] \| 1.66% Nissan Motor Acceptance Corporation Due 2018-04-06 [Member]
Face Value			$ 1,422,000
% Yield	[1]		1.66%
Fair Value			$ 1,435,476
% of Partners' Capital (Net Asset Value)			0.25%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Automotive [Member] \| 1.33% Toyota Motor Credit Corporation Due 2017-03-27 [Member]
Face Value			$ 1,000,000
% Yield	[1]		1.33%
Fair Value			$ 1,000,899
% of Partners' Capital (Net Asset Value)			0.18%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Automotive [Member] \| 1.19% Toyota Motor Credit Corporation Due 2017-12-05 [Member]
Face Value			$ 891,000
% Yield	[1]		1.19%
Fair Value			$ 892,468
% of Partners' Capital (Net Asset Value)			0.16%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Automotive [Member] \| 1.73% Toyota Motor Credit Corporation Due 2019-02-19 [Member]
Face Value			$ 670,000
% Yield	[1]		1.73%
Fair Value			$ 679,133
% of Partners' Capital (Net Asset Value)			0.12%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Automotive [Member] \| 1.29% Volkswagen Group of America Finance, LLC Due 2017-05-23 [Member]
Face Value			$ 500,000
% Yield	[1]		1.29%
Fair Value			$ 499,164
% of Partners' Capital (Net Asset Value)			0.09%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Automotive [Member] \| 1.35% Volkswagen Group of America Finance, LLC Due 2017-11-20 [Member]
Face Value			$ 200,000
% Yield	[1]		1.35%
Fair Value			$ 199,352
% of Partners' Capital (Net Asset Value)			0.04%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Automotive [Member] \| 2.29% Ford Motor Credit Company LLC Due 2018-01-09 [Member]
Face Value		$ 6,500,000
% Yield	[1]	2.29%
Fair Value		$ 6,534,842
% of Partners' Capital (Net Asset Value)		1.83%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Banks [Member] \| 1.2% Capital One Bank Due 2017-02-13 [Member]
Face Value			$ 500,000
% Yield	[1]		1.20%
Fair Value			$ 502,199
% of Partners' Capital (Net Asset Value)			0.09%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Banks [Member] \| 1.57% Credit Suisse AG Due 2018-04-27 [Member]
Face Value		$ 6,950,000	$ 8,000,000
% Yield	[1]	2.05%	1.57%
Fair Value		$ 6,986,324	$ 8,069,458
% of Partners' Capital (Net Asset Value)		1.94%	1.43%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Banks [Member] \| 1.7% JPMorgan Chase & Co. Due 2018-03-01 [Member]
Face Value		$ 3,000,000	$ 4,000,000
% Yield	[1]	2.58%	1.70%
Fair Value		$ 3,080,581	$ 4,023,507
% of Partners' Capital (Net Asset Value)		0.86%	0.71%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Banks [Member] \| 1.5% PNC Realty Investors, Inc. Due 2018-02-23 [Member]
Face Value			$ 1,000,000
% Yield	[1]		1.50%
Fair Value			$ 1,003,956
% of Partners' Capital (Net Asset Value)			0.18%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Banks [Member] \| 1.35% PNC Realty Investors, Inc. Due 2018-12-07 [Member]
Face Value			$ 463,000
% Yield	[1]		1.35%
Fair Value			$ 463,643
% of Partners' Capital (Net Asset Value)			0.08%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Banks [Member] \| 1.37% U.S. Bank National Association Due 2017-08-23 [Member]
Face Value			$ 500,000
% Yield	[1]		1.37%
Fair Value			$ 501,735
% of Partners' Capital (Net Asset Value)			0.09%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Banks [Member] \| 1.15% U.S. Bank National Association Due 2017-09-11 [Member]
Face Value			$ 806,000
% Yield	[1]		1.15%
Fair Value			$ 806,963
% of Partners' Capital (Net Asset Value)			0.14%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Banks [Member] \| 1.45% U.S. Bank National Association Due 2018-01-29 [Member]
Face Value			$ 450,000
% Yield	[1]		1.45%
Fair Value			$ 452,407
% of Partners' Capital (Net Asset Value)			0.08%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Banks [Member] \| 1.4% Wells Fargo & Company Due 2017-09-08 [Member]
Face Value			$ 1,722,000
% Yield	[1]		1.40%
Fair Value			$ 1,727,540
% of Partners' Capital (Net Asset Value)			0.31%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Banks [Member] \| 1.62% Wells Fargo Bank, National Association Due 2018-01-22 [Member]
Face Value			$ 834,000
% Yield	[1]		1.62%
Fair Value			$ 840,655
% of Partners' Capital (Net Asset Value)			0.15%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Banks [Member] \| 1.46% MUFG Americas Holdings Corporation Due 2018-02-09 [Member]
Face Value		$ 6,625,000
% Yield	[1]	1.97%
Fair Value		$ 6,645,233
% of Partners' Capital (Net Asset Value)		1.86%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Beverages [Member] \| 5.5% Anheuser-Busch Companies, LLC Due 2018-01-15 [Member]
Face Value			$ 3,617,000
% Yield	[1]		5.50%
Fair Value			$ 3,836,664
% of Partners' Capital (Net Asset Value)			0.68%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Computers [Member] \| 1.70% Apple Inc. Due 2019-02-22 [Member]
Face Value		$ 2,000,000	$ 800,000
% Yield	[1]	1.70%	1.13%
Fair Value		$ 2,007,229	$ 802,275
% of Partners' Capital (Net Asset Value)		0.56%	0.14%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Computers [Member] \| 1.74% Apple Inc. Due 2019-02-22 [Member]
Face Value		$ 3,000,000	$ 3,000,000
% Yield	[1]	2.27%	1.74%
Fair Value		$ 3,033,911	$ 3,049,814
% of Partners' Capital (Net Asset Value)		0.85%	0.54%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Computers [Member] \| 1.7% Apple Inc. Due 2019-02-22 [Member]
Face Value			$ 2,650,000
% Yield	[1]		1.70%
Fair Value			$ 2,672,669
% of Partners' Capital (Net Asset Value)			0.47%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 1% Branch Banking and Trust Company Due 2017-04-03 [Member]
Face Value			$ 1,400,000
% Yield	[1]		1.00%
Fair Value			$ 1,403,036
% of Partners' Capital (Net Asset Value)			0.25%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 5.45% Morgan Stanley Due 2017-01-09 [Member]
Face Value		$ 3,000,000	$ 5,900,000
% Yield	[1]	2.45%	5.45%
Fair Value		$ 3,038,005	$ 6,058,939
% of Partners' Capital (Net Asset Value)		0.85%	1.08%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 1.21% American Express Credit Corporation Due 2017-06-05 [Member]
Face Value			$ 1,000,000
% Yield	[1]		1.21%
Fair Value			$ 998,959
% of Partners' Capital (Net Asset Value)			0.18%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 1.5% Berkshire Hathaway Finance Corporation Due 2018-03-07 [Member]
Face Value			$ 1,226,000
% Yield	[1]		1.50%
Fair Value			$ 1,233,955
% of Partners' Capital (Net Asset Value)			0.22%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 1.42% Branch Banking and Trust Company Due 2019-05-10 [Member]
Face Value			$ 800,000
% Yield	[1]		1.42%
Fair Value			$ 803,043
% of Partners' Capital (Net Asset Value)			0.14%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 1.76% Goldman Sachs Group, Inc. Due 2017-12-15 [Member]
Face Value		$ 2,600,000	$ 400,000
% Yield	[1]	7.50%	1.76%
Fair Value		$ 2,821,243	$ 400,933
% of Partners' Capital (Net Asset Value)		0.79%	0.07%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 7.5% Goldman Sachs Group, Inc. Due 2019-02-15 [Member]
Face Value		$ 2,250,000	$ 3,500,000
% Yield	[1]	2.41%	7.50%
Fair Value		$ 2,278,614	$ 3,975,907
% of Partners' Capital (Net Asset Value)		0.64%	0.71%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 1.92% Goldman Sachs Group, Inc. Due 2019-04-25 [Member]
Face Value			$ 3,000,000
% Yield	[1]		1.92%
Fair Value			$ 3,031,530
% of Partners' Capital (Net Asset Value)			0.54%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 2.5% Intercontinental Exchange, Inc. Due 2018-10-15 [Member]
Face Value			$ 3,600,000
% Yield	[1]		2.50%
Fair Value			$ 3,665,080
% of Partners' Capital (Net Asset Value)			0.65%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 2% Massmutual Global Funding II C Due 2017-04-05 [Member]
Face Value			$ 798,000
% Yield	[1]		2.00%
Fair Value			$ 803,787
% of Partners' Capital (Net Asset Value)			0.14%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 1.3% Metropolitan Life Global Funding I Due 2017-04-10 [Member]
Face Value			$ 3,500,000
% Yield	[1]		1.30%
Fair Value			$ 3,512,208
% of Partners' Capital (Net Asset Value)			0.62%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 1.26% Metropolitan Life Global Funding I Due 2017-04-10 [Member]
Face Value			$ 1,000,000
% Yield	[1]		1.26%
Fair Value			$ 1,003,471
% of Partners' Capital (Net Asset Value)			0.18%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 2.45% Morgan Stanley Due 2019-02-01 [Member]
Face Value			$ 500,000
% Yield	[1]		2.45%
Fair Value			$ 508,144
% of Partners' Capital (Net Asset Value)			0.09%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 1.46% MUFG Americas Holdings Corporation Due 2018-02-09 [Member]
Face Value			$ 8,125,000
% Yield	[1]		1.46%
Fair Value			$ 8,130,157
% of Partners' Capital (Net Asset Value)			1.44%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 2% NYSE Euronext Due 2017-10-05 [Member]
Face Value			$ 1,500,000
% Yield	[1]		2.00%
Fair Value			$ 1,515,097
% of Partners' Capital (Net Asset Value)			0.27%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 1.35% Pricoa Global Funding I Due 2018-06-27 [Member]
Face Value			$ 1,675,000
% Yield	[1]		1.35%
Fair Value			$ 1,672,724
% of Partners' Capital (Net Asset Value)			0.30%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 1.43% Principal Life Global Funding II Due 2017-12-01 [Member]
Face Value			$ 1,800,000
% Yield	[1]		1.43%
Fair Value			$ 1,809,491
% of Partners' Capital (Net Asset Value)			0.32%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 1.21% Principal Life Global Funding II Due 2018-05-21 [Member]
Face Value			$ 362,000
% Yield	[1]		1.21%
Fair Value			$ 362,357
% of Partners' Capital (Net Asset Value)			0.06%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 1.38% UBS AG Due 2017-06-01 [Member]
Face Value			$ 1,000,000
% Yield	[1]		1.38%
Fair Value			$ 1,000,895
% of Partners' Capital (Net Asset Value)			0.18%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 1.49% UBS AG Due 2017-06-01 [Member]
Face Value			$ 4,750,000
% Yield	[1]		1.49%
Fair Value			$ 4,758,282
% of Partners' Capital (Net Asset Value)			0.84%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 1.8% UBS AG Due 2018-03-26 [Member]
Face Value			$ 358,000
% Yield	[1]		1.80%
Fair Value			$ 359,901
% of Partners' Capital (Net Asset Value)			0.06%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 1.2% Visa Inc. Due 2017-12-14 [Member]
Face Value			$ 4,500,000
% Yield	[1]		1.20%
Fair Value			$ 4,498,725
% of Partners' Capital (Net Asset Value)			0.80%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 2.50% Intercontinental Exchange, Inc. Due 2018-10-15 [Member]
Face Value		$ 3,000,000
% Yield	[1]	2.50%
Fair Value		$ 3,027,533
% of Partners' Capital (Net Asset Value)		0.85%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Energy [Member] \| 2% Kinder Morgan, Inc. Due 2017-12-01 [Member]
Face Value			$ 3,350,000
% Yield	[1]		2.00%
Fair Value			$ 3,361,647
% of Partners' Capital (Net Asset Value)			0.60%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Energy [Member] \| 1.13% Pacific Gas and Electric Company Due 2017-11-30 [Member]
Face Value			$ 118,000
% Yield	[1]		1.13%
Fair Value			$ 118,152
% of Partners' Capital (Net Asset Value)			0.02%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Healthcare [Member] \| 1.70% Aetna Inc. Due 2018-06-07 [Member]
Face Value			$ 10,000,000
% Yield	[1]		1.70%
Fair Value			$ 10,008,433
% of Partners' Capital (Net Asset Value)			1.78%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Healthcare [Member] \| 1.88% Anthem, Inc. Due 2018-01-15 [Member]
Face Value			$ 500,000
% Yield	[1]		1.88%
Fair Value			$ 505,068
% of Partners' Capital (Net Asset Value)			0.09%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Healthcare [Member] \| 1.5% Medtronic, Inc. Due 2018-03-15 [Member]
Face Value			$ 1,500,000
% Yield	[1]		1.50%
Fair Value			$ 1,507,690
% of Partners' Capital (Net Asset Value)			0.27%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Healthcare [Member] \| 1.33% UnitedHealth Group Incorporated Due 2017-01-17 [Member]
Face Value			$ 7,750,000
% Yield	[1]		1.33%
Fair Value			$ 7,776,410
% of Partners' Capital (Net Asset Value)			1.38%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Healthcare [Member] \| 2% Zimmer Biomet Holdings, Inc. Due 2018-04-01 [Member]
Face Value		$ 6,325,000	$ 7,775,000
% Yield	[1]	2.00%	2.00%
Fair Value		$ 6,358,902	$ 7,833,002
% of Partners' Capital (Net Asset Value)		1.78%	1.39%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Healthcare [Member] \| 1.70% Aetna Inc. Due 2018-06-07 [Member]
Face Value		$ 7,500,000
% Yield	[1]	1.70%
Fair Value		$ 7,496,650
% of Partners' Capital (Net Asset Value)		2.10%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Healthcare [Member] \| 1.88% Aetna Inc. Due 2018-01-15 [Member]
Face Value		$ 500,000
% Yield	[1]	1.88%
Fair Value		$ 504,288
% of Partners' Capital (Net Asset Value)		0.14%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Insurance [Member] \| 1.13% New York Life Global Funding Due 2017-03-01 [Member]
Face Value			$ 1,000,000
% Yield	[1]		1.13%
Fair Value			$ 1,003,673
% of Partners' Capital (Net Asset Value)			0.18%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Insurance [Member] \| 1.65% AIG Global Funding Due 2017-12-15 [Member]
Face Value			$ 828,000
% Yield	[1]		1.65%
Fair Value			$ 829,366
% of Partners' Capital (Net Asset Value)			0.15%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Insurance [Member] \| 1.15% Berkshire Hathaway Inc. Due 2018-08-15 [Member]
Face Value			$ 352,000
% Yield	[1]		1.15%
Fair Value			$ 351,702
% of Partners' Capital (Net Asset Value)			0.06%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Insurance [Member] \| 1.3% New York Life Global Funding Due 2017-10-30 [Member]
Face Value			$ 1,614,000
% Yield	[1]		1.30%
Fair Value			$ 1,618,469
% of Partners' Capital (Net Asset Value)			0.29%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Manufacturing [Member] \| 1.16% Caterpillar Financial Services Corporation Due 2017-11-20 [Member]
Face Value			$ 994,000
% Yield	[1]		1.16%
Fair Value			$ 996,206
% of Partners' Capital (Net Asset Value)			0.18%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Manufacturing [Member] \| 1.62% Caterpillar Financial Services Corporation Due 2018-02-23 [Member]
Face Value			$ 789,000
% Yield	[1]		1.62%
Fair Value			$ 794,323
% of Partners' Capital (Net Asset Value)			0.14%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Manufacturing [Member] \| 1.16% General Electric Capital Corporation Due 2017-01-09 [Member]
Face Value			$ 1,000,000
% Yield	[1]		1.16%
Fair Value			$ 1,002,681
% of Partners' Capital (Net Asset Value)			0.18%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Manufacturing [Member] \| 0.9% Illinois Tool Works Inc. Due 2017-02-25 [Member]
Face Value			$ 241,000
% Yield	[1]		0.90%
Fair Value			$ 241,648
% of Partners' Capital (Net Asset Value)			0.04%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Manufacturing [Member] \| 1.33% John Deere Capital Corporation Due 2017-07-11 [Member]
Face Value			$ 700,000
% Yield	[1]		1.33%
Fair Value			$ 703,523
% of Partners' Capital (Net Asset Value)			0.12%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Manufacturing [Member] \| 1.45% John Deere Capital Corporation Due 2019-01-08 [Member]
Face Value			$ 1,000,000
% Yield	[1]		1.45%
Fair Value			$ 1,009,224
% of Partners' Capital (Net Asset Value)			0.18%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Pharmaceutical [Member] \| 1.8% AbbVie Inc. Due 2018-05-14 [Member]
Face Value			$ 7,775,000
% Yield	[1]		1.80%
Fair Value			$ 7,795,293
% of Partners' Capital (Net Asset Value)			1.38%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Pharmaceutical [Member] \| 1.34% EMD Fin LLC Due 2017-03-17 [Member]
Face Value			$ 500,000
% Yield	[1]		1.34%
Fair Value			$ 500,118
% of Partners' Capital (Net Asset Value)			0.09%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Retail [Member] \| 1.9% CVS Health Corporation Due 2018-07-20 [Member]
Face Value		$ 6,000,000	$ 7,500,000
% Yield	[1]	1.90%	1.90%
Fair Value		$ 6,049,123	$ 7,592,379
% of Partners' Capital (Net Asset Value)		1.69%	1.35%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Retail [Member] \| 4.13% Dollar General Corporation Due 2017-07-15 [Member]
Face Value			$ 783,000
% Yield	[1]		4.13%
Fair Value			$ 809,225
% of Partners' Capital (Net Asset Value)			0.14%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Retail [Member] \| 2.25% Home Depot, Inc. Due 2018-09-10 [Member]
Face Value		$ 3,000,000	$ 4,750,000
% Yield	[1]	2.25%	2.25%
Fair Value		$ 3,029,363	$ 4,843,088
% of Partners' Capital (Net Asset Value)		0.85%	0.86%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Retail [Member] \| 1.63% Lowe`s Companies, Inc. Due 2017-04-15 [Member]
Face Value			$ 310,000
% Yield	[1]		1.63%
Fair Value			$ 311,377
% of Partners' Capital (Net Asset Value)			0.06%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Software [Member] \| 1.1% Microsoft Corporation Due 2019-08-08 [Member]
Face Value			$ 1,400,000
% Yield	[1]		1.10%
Fair Value			$ 1,386,517
% of Partners' Capital (Net Asset Value)			0.25%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Software [Member] \| 1.07% Oracle Corporation Due 2017-07-07 [Member]
Face Value		$ 3,500,000	$ 900,000
% Yield	[1]	2.25%	1.07%
Fair Value		$ 3,533,591	$ 902,674
% of Partners' Capital (Net Asset Value)		0.99%	0.16%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Software [Member] \| 5.75% Oracle Corporation Due 2018-04-15 [Member]
Face Value			$ 600,000
% Yield	[1]		5.75%
Fair Value			$ 641,357
% of Partners' Capital (Net Asset Value)			0.11%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Telecommunications [Member] \| 5.80% ATAndT Inc. Due 2019-02-15 [Member]
Face Value		$ 6,000,000	$ 6,750,000
% Yield	[1]	5.80%	5.80%
Fair Value		$ 6,357,427	$ 7,395,105
% of Partners' Capital (Net Asset Value)		1.78%	1.31%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Telecommunications [Member] \| 1.34% Cisco Systems, Inc. Due 2019-09-20 [Member]
Face Value		$ 2,500,000	$ 4,000,000
% Yield	[1]	1.97%	1.34%
Fair Value		$ 2,516,388	$ 3,989,903
% of Partners' Capital (Net Asset Value)		0.70%	0.71%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Telecommunications [Member] \| 1.35% Verizon Communications Inc. Due 2017-06-09 [Member]
Face Value			$ 4,800,000
% Yield	[1]		1.35%
Fair Value			$ 4,804,623
% of Partners' Capital (Net Asset Value)			0.85%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Telecommunications [Member] \| 2.71% Verizon Communications Inc. Due 2018-09-14 [Member]
Face Value			$ 4,500,000
% Yield	[1]		2.71%
Fair Value			$ 4,609,325
% of Partners' Capital (Net Asset Value)			0.82%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Media [Member] \| 2.34% Discovery Communications, LLC Due 2019-09-20 [Member]
Face Value		$ 3,000,000
% Yield	[1]	2.34%
Fair Value		$ 3,018,925
% of Partners' Capital (Net Asset Value)		0.84%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Pharmaceuticals [Member] \| 1.80% AbbVie Inc. Due 2018-05-14 [Member]
Face Value		$ 5,775,000
% Yield	[1]	1.80%
Fair Value		$ 5,785,684
% of Partners' Capital (Net Asset Value)		1.62%
Corporate Notes [Member] \| U.S. Corporate Notes [Member] \| Pharmaceuticals [Member] \| 1.86% Amgen Inc. Due 2018-05-11 [Member]
Face Value		$ 4,200,000
% Yield	[1]	1.86%
Fair Value		$ 4,226,820
% of Partners' Capital (Net Asset Value)		1.18%
Corporate Notes [Member] \| Foreign Corporate Notes [Member]
Fair Value		$ 35,259,950	$ 43,005,607
% of Partners' Capital (Net Asset Value)		9.86%	7.64%
Investment Owned, at Cost		$ 35,149,970	$ 42,916,443
Corporate Notes [Member] \| Foreign Corporate Notes [Member] \| Banks [Member] \| 4.25% ABN AMRO Bank N.V. Due 2017-02-02 [Member]
Face Value			$ 1,000,000
% Yield	[1]		4.25%
Fair Value			$ 1,019,746
% of Partners' Capital (Net Asset Value)			0.18%
Corporate Notes [Member] \| Foreign Corporate Notes [Member] \| Banks [Member] \| 1.32% Commonwealth Bank of Australia Due 2017-03-13 [Member]
Face Value			$ 1,998,000
% Yield	[1]		1.32%
Fair Value			$ 2,000,199
% of Partners' Capital (Net Asset Value)			0.36%
Corporate Notes [Member] \| Foreign Corporate Notes [Member] \| Banks [Member] \| 3.38% Cooperatieve Rabobank U.A. Due 2017-01-19 [Member]
Face Value			$ 548,000
% Yield	[1]		3.38%
Fair Value			$ 556,823
% of Partners' Capital (Net Asset Value)			0.10%
Corporate Notes [Member] \| Foreign Corporate Notes [Member] \| Banks [Member] \| 1.69% ING Bank N.V. Due 2018-08-17 [Member]
Face Value		$ 4,000,000	$ 5,000,000
% Yield	[1]	2.20%	1.69%
Fair Value		$ 4,026,210	$ 5,030,139
% of Partners' Capital (Net Asset Value)		1.13%	0.89%
Corporate Notes [Member] \| Foreign Corporate Notes [Member] \| Banks [Member] \| 5% Macquarie Bank Limited Due 2017-02-22 [Member]
Face Value			$ 500,000
% Yield	[1]		5.00%
Fair Value			$ 511,460
% of Partners' Capital (Net Asset Value)			0.09%
Corporate Notes [Member] \| Foreign Corporate Notes [Member] \| Banks [Member] \| 2.00% National Australia Bank Limited Due 2018-07-23 [Member]
Face Value		$ 3,500,000	$ 5,000,000
% Yield	[1]	2.00%	1.52%
Fair Value		$ 3,523,463	$ 4,989,884
% of Partners' Capital (Net Asset Value)		0.99%	0.89%
Corporate Notes [Member] \| Foreign Corporate Notes [Member] \| Banks [Member] \| 2.88% Svenska Handelsbanken AB Due 2017-04-04 [Member]
Face Value			$ 1,800,000
% Yield	[1]		2.88%
Fair Value			$ 1,820,925
% of Partners' Capital (Net Asset Value)			0.32%
Corporate Notes [Member] \| Foreign Corporate Notes [Member] \| Banks [Member] \| 2.13% Swedbank AB Due 2017-09-29 [Member]
Face Value			$ 882,000
% Yield	[1]		2.13%
Fair Value			$ 890,977
% of Partners' Capital (Net Asset Value)			0.16%
Corporate Notes [Member] \| Foreign Corporate Notes [Member] \| Banks [Member] \| 1.6% Swedbank AB Due 2018-03-14 [Member]
Face Value			$ 262,000
% Yield	[1]		1.60%
Fair Value			$ 262,636
% of Partners' Capital (Net Asset Value)			0.05%
Corporate Notes [Member] \| Foreign Corporate Notes [Member] \| Banks [Member] \| 1.42% Toronto-Dominion Bank Due 2018-07-23 [Member]
Face Value			$ 1,500,000
% Yield	[1]		1.42%
Fair Value			$ 1,502,123
% of Partners' Capital (Net Asset Value)			0.27%
Corporate Notes [Member] \| Foreign Corporate Notes [Member] \| Banks [Member] \| 1.38% ABN AMRO Bank N.V. Due 2016-01-22 [Member]
Face Value		$ 6,000,000
% Yield	[1]	1.99%
Fair Value		$ 6,049,704
% of Partners' Capital (Net Asset Value)		1.69%
Corporate Notes [Member] \| Foreign Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 1.55% Caisse centrale Desjardins Due 2018-01-29 [Member]
Face Value			$ 800,000
% Yield	[1]		1.55%
Fair Value			$ 801,324
% of Partners' Capital (Net Asset Value)			0.14%
Corporate Notes [Member] \| Foreign Corporate Notes [Member] \| Diversifie Financial Services [Member] \| 3.5% Hutchison Whampoa International Ltd Due 2017-01-13 [Member]
Face Value			$ 222,000
% Yield	[1]		3.50%
Fair Value			$ 225,713
% of Partners' Capital (Net Asset Value)			0.04%
Corporate Notes [Member] \| Foreign Corporate Notes [Member] \| Energy [Member] \| 1.68% BP Capital Markets P.L.C. Due 2019-05-03 [Member]
Face Value		$ 5,500,000	$ 7,500,000
% Yield	[1]	1.68%	1.68%
Fair Value		$ 5,485,426	$ 7,471,652
% of Partners' Capital (Net Asset Value)		1.53%	1.32%
Corporate Notes [Member] \| Foreign Corporate Notes [Member] \| Energy [Member] \| 1.2% Shell International Finance B.V. Due 2017-05-10 [Member]
Face Value		$ 5,500,000	$ 1,000,000
% Yield	[1]	1.38%	1.20%
Fair Value		$ 5,454,808	$ 1,002,302
% of Partners' Capital (Net Asset Value)		1.53%	0.18%
Corporate Notes [Member] \| Foreign Corporate Notes [Member] \| Energy [Member] \| 2.13% Shell International Finance B.V. Due 2020-05-11 [Member]
Face Value		$ 2,500,000	$ 7,500,000
% Yield	[1]	2.13%	1.38%
Fair Value		$ 2,502,003	$ 7,443,624
% of Partners' Capital (Net Asset Value)		0.70%	1.32%
Corporate Notes [Member] \| Foreign Corporate Notes [Member] \| Energy [Member] \| 1.45% Total Capital Canada Ltd. Due 2018-01-15 [Member]
Face Value			$ 608,000
% Yield	[1]		1.45%
Fair Value			$ 611,937
% of Partners' Capital (Net Asset Value)			0.11%
Corporate Notes [Member] \| Foreign Corporate Notes [Member] \| Pharmaceutical [Member] \| 2.03% Actavis Funding SCS Due 2018-03-12 [Member]
Face Value			$ 6,790,000
% Yield	[1]		2.03%
Fair Value			$ 6,864,143
% of Partners' Capital (Net Asset Value)			1.22%
Corporate Notes [Member] \| Foreign Corporate Notes [Member] \| Pharmaceuticals [Member] \| 2.63% Allergan Funding SCS Due 2018-03-12 [Member]
Face Value		$ 5,915,000
% Yield	[1]	2.63%
Fair Value		$ 5,932,274
% of Partners' Capital (Net Asset Value)		1.66%
Corporate Notes [Member] \| Foreign Corporate Notes [Member] \| Pharmaceuticals [Member] \| 2.80% Allergan Funding SCS Due 2020-03-12 [Member]
Face Value		$ 2,250,000
% Yield	[1]	2.80%
Fair Value		$ 2,286,062
% of Partners' Capital (Net Asset Value)		0.63%

[1]	Represents the annualized yield at date of purchase for discount securities, the stated coupon rate for coupon-bearing securities, or the stated interest rate for certificates of deposit.

Consolidated Condensed Schedul7

Consolidated Condensed Schedule of Investments U.S. Asset Backed Securities - USD ($)		Dec. 31, 2017	Dec. 31, 2016
% of Partners' Capital (Net Asset Value)		66.39%	81.68%
Investment Owned, at Cost		$ 237,596,840	$ 424,687,833
Asset-backed Securities [Member]
Fair Value		$ 11,574,641	$ 36,022,365
% of Partners' Capital (Net Asset Value)		3.24%	6.40%
Investment Owned, at Cost		$ 11,584,417	$ 36,030,992
Asset-backed Securities [Member] \| Automotive [Member] \| 1.17% Ally Auto Receivables Trust Due 2018-10-15 [Member]
Face Value			$ 1,022,130
% Yield	[1]		1.17%
Fair Value			$ 1,023,206
% of Partners' Capital (Net Asset Value)			0.18%
Asset-backed Securities [Member] \| Automotive [Member] \| 0.98% Ally Auto Receivables Trust 2015-2 Due 2018-03-15 [Member]
Face Value			$ 123,315
% Yield	[1]		0.98%
Fair Value			$ 123,367
% of Partners' Capital (Net Asset Value)			0.02%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.2% Ally Auto Receivables Trust 2016-1 Due 2018-08-15 [Member]
Face Value			$ 233,814
% Yield	[1]		1.20%
Fair Value			$ 234,067
% of Partners' Capital (Net Asset Value)			0.04%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.07% AmeriCredit Auto Receivables Tr 2006-A-F Due 2019-01-08 [Member]
Face Value			$ 352,606
% Yield	[1]		1.07%
Fair Value			$ 352,765
% of Partners' Capital (Net Asset Value)			0.06%
Asset-backed Securities [Member] \| Automotive [Member] \| 0.9% AmeriCredit Auto Receivables Tr 2006-A-F Due 2019-02-08 [Member]
Face Value			$ 65,751
% Yield	[1]		0.90%
Fair Value			$ 65,780
% of Partners' Capital (Net Asset Value)			0.01%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.15% Americredit Auto Receivables Tr 2014-3 Due 2019-06-10 [Member]
Face Value			$ 1,042,386
% Yield	[1]		1.15%
Fair Value			$ 1,042,699
% of Partners' Capital (Net Asset Value)			0.19%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.26% AmeriCredit Auto Receivables Tr 2015-4 Due 2019-04-08 [Member]
Face Value			$ 464,554
% Yield	[1]		1.26%
Fair Value			$ 464,960
% of Partners' Capital (Net Asset Value)			0.08%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.82% ARI Fleet Lease Trust Due 2024-07-15 [Member]
Face Value			$ 375,000
% Yield	[1]		1.82%
Fair Value			$ 376,106
% of Partners' Capital (Net Asset Value)			0.07%
Asset-backed Securities [Member] \| Automotive [Member] \| 0.87% Bank of the West Auto Trust 2015-1 Due 2018-04-16 [Member]
Face Value			$ 28,531
% Yield	[1]		0.87%
Fair Value			$ 28,538
% of Partners' Capital (Net Asset Value)			0.01%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.17% BMW Vehicle Lease Trust Due 2018-01-22 [Member]
Face Value			$ 536,454
% Yield	[1]		1.17%
Fair Value			$ 536,740
% of Partners' Capital (Net Asset Value)			0.10%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.07% BMW Vehicle Lease Trust 2015-2 Due 2018-01-22 [Member]
Face Value			$ 782,699
% Yield	[1]		1.07%
Fair Value			$ 782,893
% of Partners' Capital (Net Asset Value)			0.14%
Asset-backed Securities [Member] \| Automotive [Member] \| 0.99% BMW Vehicle Owner Trust 2016-A Due 2019-05-28 [Member]
Face Value			$ 812,000
% Yield	[1]		0.99%
Fair Value			$ 811,096
% of Partners' Capital (Net Asset Value)			0.14%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.47% Capital Auto Receivables Asset Tr 2013-4 Due 2018-07-20 [Member]
Face Value			$ 346,511
% Yield	[1]		1.47%
Fair Value			$ 346,792
% of Partners' Capital (Net Asset Value)			0.06%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.73% Capital Auto Receivables Asset Tr 2015-2 Due 2019-09-20 [Member]
Face Value			$ 650,000
% Yield	[1]		1.73%
Fair Value			$ 651,017
% of Partners' Capital (Net Asset Value)			0.12%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.14% Capital Auto Receivables Asset Trust 2015-2 Due 2017-10-20 [Member]
Face Value		$ 336,449	$ 25,157
% Yield	[1]	1.73%	1.14%
Fair Value		$ 336,620	$ 25,166
% of Partners' Capital (Net Asset Value)		0.09%	0.00%
Asset-backed Securities [Member] \| Automotive [Member] \| 0.82% CarMax Auto Owner Trust 2015-2 Due 2018-06-15 [Member]
Face Value			$ 101,681
% Yield	[1]		0.82%
Fair Value			$ 101,697
% of Partners' Capital (Net Asset Value)			0.02%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.21% CarMax Auto Owner Trust 2016-4 Due 2019-11-15 [Member]
Face Value		$ 356,197	$ 750,000
% Yield	[1]	1.21%	1.21%
Fair Value		$ 355,640	$ 751,138
% of Partners' Capital (Net Asset Value)		0.10%	0.13%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.03% Chesapeake Funding LLC Due 2027-02-07 [Member]
Face Value			$ 443,244
% Yield	[1]		1.03%
Fair Value			$ 440,255
% of Partners' Capital (Net Asset Value)			0.08%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.67% Drive Auto Receivables Trust Due 2019-07-15 [Member]
Face Value			$ 400,000
% Yield	[1]		1.67%
Fair Value			$ 400,713
% of Partners' Capital (Net Asset Value)			0.07%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.67% Drive Auto Receivables Trust Due 2019-11-15 [Member]
Face Value			$ 350,000
% Yield	[1]		1.67%
Fair Value			$ 350,480
% of Partners' Capital (Net Asset Value)			0.06%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.02% Fifth Third Auto Trust 2015-1 Due 2018-05-15 [Member]
Face Value			$ 115,451
% Yield	[1]		1.02%
Fair Value			$ 115,503
% of Partners' Capital (Net Asset Value)			0.02%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.04% Ford Credit Auto Lease Trust 2015-B Due 2018-05-15 [Member]
Face Value			$ 314,757
% Yield	[1]		1.04%
Fair Value			$ 314,885
% of Partners' Capital (Net Asset Value)			0.06%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.42% Ford Credit Auto Lease Trust 2016-A Due 2018-11-15 [Member]
Face Value			$ 1,250,893
% Yield	[1]		1.42%
Fair Value			$ 1,253,627
% of Partners' Capital (Net Asset Value)			0.22%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.08% Ford Credit Auto Owner Trust 2016-B Due 2019-03-15 [Member]
Face Value			$ 494,027
% Yield	[1]		1.08%
Fair Value			$ 494,197
% of Partners' Capital (Net Asset Value)			0.09%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.92% Ford Credit Floorplan Master Owner Tr A Due 2019-01-15 [Member]
Face Value			$ 342,000
% Yield	[1]		1.92%
Fair Value			$ 342,432
% of Partners' Capital (Net Asset Value)			0.06%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.12% GE Dealer Floorplan Master Not Due 2019-07-20 [Member]
Face Value			$ 500,000
% Yield	[1]		1.12%
Fair Value			$ 500,272
% of Partners' Capital (Net Asset Value)			0.09%
Asset-backed Securities [Member] \| Automotive [Member] \| 0.8% Harley-Davidson Motorcycle Trust 2015-2 Due 2019-01-15 [Member]
Face Value			$ 182,367
% Yield	[1]		0.80%
Fair Value			$ 182,377
% of Partners' Capital (Net Asset Value)			0.03%
Asset-backed Securities [Member] \| Automotive [Member] \| 0.94% Hertz Fleet Lease Funding LP Due 2028-04-10 [Member]
Face Value			$ 581,076
% Yield	[1]		0.94%
Fair Value			$ 581,309
% of Partners' Capital (Net Asset Value)			0.10%
Asset-backed Securities [Member] \| Automotive [Member] \| 0.82% Honda Auto Receivables 2015-4 Owner Tr Due 2018-07-23 [Member]
Face Value			$ 439,595
% Yield	[1]		0.82%
Fair Value			$ 439,411
% of Partners' Capital (Net Asset Value)			0.08%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.01% Honda Auto Receivables 2016-1 Owner Tr Due 2018-06-18 [Member]
Face Value			$ 566,271
% Yield	[1]		1.01%
Fair Value			$ 566,286
% of Partners' Capital (Net Asset Value)			0.10%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.13% Honda Auto Receivables 2016-2 Owner Tr Due 2018-09-17 [Member]
Face Value			$ 1,460,000
% Yield	[1]		1.13%
Fair Value			$ 1,461,410
% of Partners' Capital (Net Asset Value)			0.25%
Asset-backed Securities [Member] \| Automotive [Member] \| 0.92% Honda Auto Receivables Owner Trust Due 2017-11-20 [Member]
Face Value			$ 89,102
% Yield	[1]		0.92%
Fair Value			$ 89,134
% of Partners' Capital (Net Asset Value)			0.02%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.01% Honda Auto Receivables Owner Trust Due 2018-10-18 [Member]
Face Value			$ 1,300,000
% Yield	[1]		1.01%
Fair Value			$ 1,299,232
% of Partners' Capital (Net Asset Value)			0.23%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.29% Huntington Auto Trust 2016-1 Due 2019-05-15 [Member]
Face Value			$ 1,100,000
% Yield	[1]		1.29%
Fair Value			$ 1,100,244
% of Partners' Capital (Net Asset Value)			0.20%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.25% Hyundai Auto Lease Sec Tr 2016-A Due 2018-07-16 [Member]
Face Value			$ 606,644
% Yield	[1]		1.25%
Fair Value			$ 607,580
% of Partners' Capital (Net Asset Value)			0.11%
Asset-backed Securities [Member] \| Automotive [Member] \| 0.99% Hyundai Auto Receivables Trust 2015-C Due 2018-11-15 [Member]
Face Value			$ 326,831
% Yield	[1]		0.99%
Fair Value			$ 326,729
% of Partners' Capital (Net Asset Value)			0.06%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.21% Hyundai Auto Receivables Trust 2016-A Due 2019-06-17 [Member]
Face Value			$ 626,552
% Yield	[1]		1.21%
Fair Value			$ 626,743
% of Partners' Capital (Net Asset Value)			0.11%
Asset-backed Securities [Member] \| Automotive [Member] \| 1% Mercedes-Benz Auto Lease Trust 2015-B Due 2018-01-16 [Member]
Face Value			$ 386,868
% Yield	[1]		1.00%
Fair Value			$ 386,931
% of Partners' Capital (Net Asset Value)			0.07%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.11% Mercedes-Benz Auto Receivables Trust Due 2017-09-14 [Member]
Face Value			$ 761,000
% Yield	[1]		1.11%
Fair Value			$ 761,153
% of Partners' Capital (Net Asset Value)			0.14%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.34% Mercedes-Benz Auto Receivables Trust Due 2018-07-16 [Member]
Face Value			$ 1,451,302
% Yield	[1]		1.34%
Fair Value			$ 1,453,171
% of Partners' Capital (Net Asset Value)			0.25%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.05% Nissan Auto Lease Trust 2015-A Due 2017-11-15 [Member]
Face Value			$ 108,170
% Yield	[1]		1.05%
Fair Value			$ 108,234
% of Partners' Capital (Net Asset Value)			0.02%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.07% Nissan Auto Receivables Due 2019-05-15 [Member]
Face Value			$ 509,000
% Yield	[1]		1.07%
Fair Value			$ 508,353
% of Partners' Capital (Net Asset Value)			0.09%
Asset-backed Securities [Member] \| Automotive [Member] \| 0.67% Nissan Auto Receivables 2013-C Owner Tr Due 2018-08-15 [Member]
Face Value			$ 136,517
% Yield	[1]		0.67%
Fair Value			$ 136,506
% of Partners' Capital (Net Asset Value)			0.02%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.05% Nissan Auto Receivables 2016-B Owner Tr Due 2019-04-15 [Member]
Face Value			$ 1,005,000
% Yield	[1]		1.05%
Fair Value			$ 1,004,462
% of Partners' Capital (Net Asset Value)			0.18%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.12% Santander Drive Auto Receivables Tr 2015-5 Due 2018-11-15 [Member]
Face Value			$ 61,619
% Yield	[1]		1.12%
Fair Value			$ 61,657
% of Partners' Capital (Net Asset Value)			0.01%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.58% Santander Drive Auto Receivables Tr 2015-5 Due 2019-09-16 [Member]
Face Value			$ 225,000
% Yield	[1]		1.58%
Fair Value			$ 225,383
% of Partners' Capital (Net Asset Value)			0.04%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.34% Santander Drive Auto Receivables Trust Due 2019-11-15 [Member]
Face Value			$ 400,000
% Yield	[1]		1.34%
Fair Value			$ 400,238
% of Partners' Capital (Net Asset Value)			0.07%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.03% Toyota Auto Receivables Owner Trust Due 2017-08-15 [Member]
Face Value			$ 533,172
% Yield	[1]		1.03%
Fair Value			$ 533,407
% of Partners' Capital (Net Asset Value)			0.09%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.03% Toyota Auto Receivables Owner Trust Due 2018-02-15 [Member]
Face Value			$ 126,761
% Yield	[1]		1.03%
Fair Value			$ 126,827
% of Partners' Capital (Net Asset Value)			0.02%
Asset-backed Securities [Member] \| Automotive [Member] \| 1% Toyota Auto Receivables Owner Trust Due 2019-01-15 [Member]
Face Value			$ 551,000
% Yield	[1]		1.00%
Fair Value			$ 550,301
% of Partners' Capital (Net Asset Value)			0.10%
Asset-backed Securities [Member] \| Automotive [Member] \| 0.91% Volkswagen Auto Loan Enhanced Tr 2014-1 Due 2018-10-22 [Member]
Face Value			$ 168,728
% Yield	[1]		0.91%
Fair Value			$ 168,436
% of Partners' Capital (Net Asset Value)			0.03%
Asset-backed Securities [Member] \| Automotive [Member] \| 0.7% Volkswagen Auto Loan Enhanced Trust 2013-2 Due 2018-04-20 [Member]
Face Value			$ 106,375
% Yield	[1]		0.70%
Fair Value			$ 106,331
% of Partners' Capital (Net Asset Value)			0.02%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.06% Enterprise Fleet Financing, LLC Due 2019-03-20 [Member]
Face Value		$ 164,867
% Yield	[1]	1.59%
Fair Value		$ 164,807
% of Partners' Capital (Net Asset Value)		0.05%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.51% Americredit Automobile Receivables Trust 2017-1 Due 2020-05-18 [Member]
Face Value		$ 98,838
% Yield	[1]	1.51%
Fair Value		$ 98,733
% of Partners' Capital (Net Asset Value)		0.03%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.82% Ari Fleet Lease Trust 2016-A Due 2024-07-15 [Member]
Face Value		$ 146,957
% Yield	[1]	1.82%
Fair Value		$ 147,004
% of Partners' Capital (Net Asset Value)		0.04%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.92% Capital Auto Receivables Asset Trust 2016-3 Due 2019-04-22 [Member]
Face Value		$ 37,929
% Yield	[1]	1.92%
Fair Value		$ 37,965
% of Partners' Capital (Net Asset Value)		0.01%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.64% CarMax Auto Owner Trust 2017-3 Due 2020-09-15 [Member]
Face Value		$ 450,000
% Yield	[1]	1.64%
Fair Value		$ 449,383
% of Partners' Capital (Net Asset Value)		0.13%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.67% Drive Auto Receivables Trust 2016-C Due 2019-11-15 [Member]
Face Value		$ 99,576
% Yield	[1]	1.67%
Fair Value		$ 99,636
% of Partners' Capital (Net Asset Value)		0.03%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.76% Drive Auto Receivables Trust 2017-2 Due 2019-08-15 [Member]
Face Value		$ 228,248
% Yield	[1]	1.76%
Fair Value		$ 228,446
% of Partners' Capital (Net Asset Value)		0.06%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.85% Drive Auto Receivables Trust 2017-3 Due 2020-04-15 [Member]
Face Value		$ 650,000
% Yield	[1]	1.85%
Fair Value		$ 649,605
% of Partners' Capital (Net Asset Value)		0.18%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.77% Drive Auto Receivables Trust 2017-A Due 2020-01-15 [Member]
Face Value		$ 330,485
% Yield	[1]	1.77%
Fair Value		$ 330,643
% of Partners' Capital (Net Asset Value)		0.09%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.72% GM Financial Automobile Leasing Trust 2017-2 Due 2020-01-20 [Member]
Face Value		$ 300,000
% Yield	[1]	1.72%
Fair Value		$ 299,567
% of Partners' Capital (Net Asset Value)		0.08%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.48% Hyundai Auto Receivables Trust 2017-A Due 2020-02-18 [Member]
Face Value		$ 697,342
% Yield	[1]	1.48%
Fair Value		$ 696,699
% of Partners' Capital (Net Asset Value)		0.19%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.68% Mercedes-Benz Auto Lease Trust 2017-A Due 2019-08-15 [Member]
Face Value		$ 938,786
% Yield	[1]	1.68%
Fair Value		$ 939,698
% of Partners' Capital (Net Asset Value)		0.26%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.64% Nissan Auto Lease Trust 2017-A Due 2019-09-16 [Member]
Face Value		$ 700,000
% Yield	[1]	1.64%
Fair Value		$ 698,739
% of Partners' Capital (Net Asset Value)		0.20%
Asset-backed Securities [Member] \| Automotive [Member] \| 2.08% Santander Drive Auto Receivables Trust 2016-2 Due 2021-02-16 [Member]
Face Value		$ 650,000
% Yield	[1]	2.08%
Fair Value		$ 650,731
% of Partners' Capital (Net Asset Value)		0.18%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.34% Santander Drive Auto Receivables Trust 2016-3 Due 2019-11-15 [Member]
Face Value		$ 66,077
% Yield	[1]	1.34%
Fair Value		$ 66,091
% of Partners' Capital (Net Asset Value)		0.02%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.82% Santander Drive Auto Receivables Trust 2017-1 Due 2019-05-15 [Member]
Face Value		$ 333,862
% Yield	[1]	1.82%
Fair Value		$ 334,219
% of Partners' Capital (Net Asset Value)		0.09%
Asset-backed Securities [Member] \| Automotive [Member] \| 1.67% Santander Drive Auto Receivables Trust 2017-3 Due 2020-06-15 [Member]
Face Value		$ 300,000
% Yield	[1]	1.67%
Fair Value		$ 299,683
% of Partners' Capital (Net Asset Value)		0.08%
Asset-backed Securities [Member] \| Automotive [Member] \| 2.02% Santander Retail Auto Lease Trust 2017-A Due 2020-03-20 [Member]
Face Value		$ 350,000
% Yield	[1]	2.02%
Fair Value		$ 349,621
% of Partners' Capital (Net Asset Value)		0.11%
Asset-backed Securities [Member] \| Commercial Mortgages [Member] \| 5.43% Banc of America Commercial Mort Tr 2007-1 Due 1949-01-15 [Member]
Face Value			$ 592,970
% Yield	[1]		5.43%
Fair Value			$ 595,067
% of Partners' Capital (Net Asset Value)			0.11%
Asset-backed Securities [Member] \| Credit Card [Member] \| 1.49% American Express Credit Account Master Tr Due 2020-04-15 [Member]
Face Value			$ 1,500,000
% Yield	[1]		1.49%
Fair Value			$ 1,504,346
% of Partners' Capital (Net Asset Value)			0.27%
Asset-backed Securities [Member] \| Credit Card [Member] \| 0.99% BA Credit Card Trust Due 2020-01-15 [Member]
Face Value			$ 1,000,000
% Yield	[1]		0.99%
Fair Value			$ 1,000,649
% of Partners' Capital (Net Asset Value)			0.18%
Asset-backed Securities [Member] \| Credit Card [Member] \| 1.45% Cabela's Credit Card Master Note Trust Due 2020-06-15 [Member]
Face Value			$ 300,000
% Yield	[1]		1.45%
Fair Value			$ 300,742
% of Partners' Capital (Net Asset Value)			0.05%
Asset-backed Securities [Member] \| Credit Card [Member] \| 1.26% Capital One Multi-Asset Execution Trust Due 2020-01-15 [Member]
Face Value			$ 1,500,000
% Yield	[1]		1.26%
Fair Value			$ 1,501,670
% of Partners' Capital (Net Asset Value)			0.26%
Asset-backed Securities [Member] \| Credit Card [Member] \| 1.02% Citibank Credit Card Issuance Trust Due 2019-02-22 [Member]
Face Value			$ 1,500,000
% Yield	[1]		1.02%
Fair Value			$ 1,505,422
% of Partners' Capital (Net Asset Value)			0.27%
Asset-backed Securities [Member] \| Credit Card [Member] \| 1.22% Discover Card Execution Note Trust Due 2019-10-15 [Member]
Face Value		$ 600,000	$ 1,000,000
% Yield	[1]	1.64%	1.22%
Fair Value		$ 598,529	$ 1,000,875
% of Partners' Capital (Net Asset Value)		0.17%	0.18%
Asset-backed Securities [Member] \| Credit Card [Member] \| 1.61% Synchrony Credit Card Master Note Trust Due 2020-11-16 [Member]
Face Value			$ 350,000
% Yield	[1]		1.61%
Fair Value			$ 350,992
% of Partners' Capital (Net Asset Value)			0.06%
Asset-backed Securities [Member] \| Credit Card [Member] \| 1.26% World Fin Network Credit Card Master Note Tr Due 2021-03-15 [Member]
Face Value			$ 1,000,000
% Yield	[1]		1.26%
Fair Value			$ 1,001,440
% of Partners' Capital (Net Asset Value)			0.18%
Asset-backed Securities [Member] \| Credit Card [Member] \| 1.44% World Financial Network CC Master Note Trust Due 2018-08-15 [Member]
Face Value		$ 600,000
% Yield	[1]	1.44%
Fair Value		$ 598,614
% of Partners' Capital (Net Asset Value)		0.17%
Asset-backed Securities [Member] \| Other [Member] \| 0.69% CNH Equipment Trust 2013-B Due 2018-08-15 [Member]
Face Value			$ 55,981
% Yield	[1]		0.69%
Fair Value			$ 55,985
% of Partners' Capital (Net Asset Value)			0.01%
Asset-backed Securities [Member] \| Other [Member] \| 1.72% Dell Equipment Finance Trust Due 2020-09-22 [Member]
Face Value			$ 700,000
% Yield	[1]		1.72%
Fair Value			$ 700,091
% of Partners' Capital (Net Asset Value)			0.12%
Asset-backed Securities [Member] \| Other [Member] \| 1.3% Dell Equipment Finance Trust 2015-1 Due 2020-03-23 [Member]
Face Value			$ 500,000
% Yield	[1]		1.30%
Fair Value			$ 500,063
% of Partners' Capital (Net Asset Value)			0.09%
Asset-backed Securities [Member] \| Other [Member] \| 0.87% John Deere Owner Trust 2015 Due 2018-02-15 [Member]
Face Value			$ 103,639
% Yield	[1]		0.87%
Fair Value			$ 103,665
% of Partners' Capital (Net Asset Value)			0.02%
Asset-backed Securities [Member] \| Other [Member] \| 0.94% Kubota Credit Owner Trust 2015-1 Due 2017-12-15 [Member]
Face Value			$ 35,668
% Yield	[1]		0.94%
Fair Value			$ 35,680
% of Partners' Capital (Net Asset Value)			0.01%
Asset-backed Securities [Member] \| Student Loans [Member] \| 2.1% SLM Private Education Loan Trust 2012-A Due 2025-08-15 [Member]
Face Value			$ 8,941
% Yield	[1]		2.10%
Fair Value			$ 8,954
% of Partners' Capital (Net Asset Value)			0.00%
Asset-backed Securities [Member] \| Student Loans [Member] \| 1.45% SLM Private Education Loan Trust 2012-E Due 2023-10-16 [Member]
Face Value			$ 29,942
% Yield	[1]		1.45%
Fair Value			$ 29,962
% of Partners' Capital (Net Asset Value)			0.01%
Asset-backed Securities [Member] \| Student Loans [Member] \| 1.3% SLM Private Education Loan Trust 2013-A Due 2022-08-15 [Member]
Face Value			$ 84,411
% Yield	[1]		1.30%
Fair Value			$ 84,526
% of Partners' Capital (Net Asset Value)			0.02%
Asset-backed Securities [Member] \| Student Loans [Member] \| 2.13% SMB Private Education Loan Trust 2016-B Due 2023-11-15 [Member]
Face Value		$ 560,237
% Yield	[1]	2.13%
Fair Value		$ 561,265
% of Partners' Capital (Net Asset Value)		0.16%
Asset-backed Securities [Member] \| Student Loans [Member] \| 1.68% Sofi Professional Loan Program 2016-B Due 2031-03-25 [Member]
Face Value		$ 358,771
% Yield	[1]	1.68%
Fair Value		$ 358,455
% of Partners' Capital (Net Asset Value)		0.11%
Asset-backed Securities [Member] \| Equipment [Member] \| 1.59% CNH Equipment Trust 2017-B Due 2020-11-16 [Member]
Face Value		$ 400,000
% Yield	[1]	1.59%
Fair Value		$ 399,107
% of Partners' Capital (Net Asset Value)		0.11%
Asset-backed Securities [Member] \| Equipment [Member] \| 1.72% Dell Equipment Finance Trust 2015-2 Due 2020-09-22 [Member]
Face Value		$ 80,251
% Yield	[1]	1.72%
Fair Value		$ 80,277
% of Partners' Capital (Net Asset Value)		0.02%
Asset-backed Securities [Member] \| Equipment [Member] \| 1.97% Dell Equipment Finance Trust 2017-2 Due 2020-02-24 [Member]
Face Value		$ 625,000
% Yield	[1]	1.97%
Fair Value		$ 624,052
% of Partners' Capital (Net Asset Value)		0.17%
Asset-backed Securities [Member] \| Equipment [Member] \| 1.73% GreatAmerica Leasing Receivables Funding, LLC Due 2019-06-20 [Member]
Face Value		$ 1,121,319
% Yield	[1]	1.73%
Fair Value		$ 1,120,812
% of Partners' Capital (Net Asset Value)		0.31%

[1]	Represents the annualized yield at date of purchase for discount securities, the stated coupon rate for coupon-bearing securities, or the stated interest rate for certificates of deposit.

Consolidated Condensed Schedul8

Consolidated Condensed Schedule of Investments Certificates of Deposit	Dec. 31, 2016USD ($)
% of Partners' Capital (Net Asset Value)	81.68%
Investment Owned, at Cost	$ 424,687,833
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member]
Fair Value	$ 35,576,495
% of Partners' Capital (Net Asset Value)	6.32%
Investment Owned, at Cost	$ 35,406,974
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.10% Bank of Montreal Due 2017-06-30 [Member]
Face Value	$ 750,000
% Yield	1.10%	[1]
Fair Value	$ 753,644
% of Partners' Capital (Net Asset Value)	0.13%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.39% Bank of Montreal Due 2017-08-16 [Member]
Face Value	$ 1,500,000
% Yield	1.39%	[1]
Fair Value	$ 1,505,016
% of Partners' Capital (Net Asset Value)	0.27%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.29% Bank of Nova Scotia Due 2017-05-16 [Member]
Face Value	$ 800,000
% Yield	1.29%	[1]
Fair Value	$ 804,470
% of Partners' Capital (Net Asset Value)	0.14%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.68% Barclays Bank PLC Due 2017-12-06 [Member]
Face Value	$ 1,000,000
% Yield	1.68%	[1]
Fair Value	$ 1,001,982
% of Partners' Capital (Net Asset Value)	0.18%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.33% Canadian Imperial Bank of Commerce Due 2017-05-24 [Member]
Face Value	$ 1,000,000
% Yield	1.33%	[1]
Fair Value	$ 1,002,565
% of Partners' Capital (Net Asset Value)	0.18%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.33% Canadian Imperial Bank of Commerce Due 2017-10-06 [Member]
Face Value	$ 1,000,000
% Yield	1.33%	[1]
Fair Value	$ 1,004,618
% of Partners' Capital (Net Asset Value)	0.18%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.18% Cooperatieve Rabobank U.A. Due 2017-03-06 [Member]
Face Value	$ 2,000,000
% Yield	1.18%	[1]
Fair Value	$ 2,008,638
% of Partners' Capital (Net Asset Value)	0.36%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.75% Credit Suisse Group AG Due 2017-09-12 [Member]
Face Value	$ 1,650,000
% Yield	1.75%	[1]
Fair Value	$ 1,653,843
% of Partners' Capital (Net Asset Value)	0.29%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.41% Lloyds Bank PLC Due 2017-12-12 [Member]
Face Value	$ 1,300,000
% Yield	1.41%	[1]
Fair Value	$ 1,302,755
% of Partners' Capital (Net Asset Value)	0.23%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.44% Lloyds Bank PLC Due 2017-12-20 [Member]
Face Value	$ 400,000
% Yield	1.44%	[1]
Fair Value	$ 400,748
% of Partners' Capital (Net Asset Value)	0.07%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.25% Mitsubishi UFJ Trust & Banking Corp Due 2017-03-15 [Member]
Face Value	$ 1,000,000
% Yield	1.25%	[1]
Fair Value	$ 1,004,426
% of Partners' Capital (Net Asset Value)	0.18%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.30% Mizuho Bank, Ltd. Due 2017-07-13 [Member]
Face Value	$ 2,000,000
% Yield	1.30%	[1]
Fair Value	$ 2,012,395
% of Partners' Capital (Net Asset Value)	0.36%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.32% National Bank of Canada Due 2017-05-24 [Member]
Face Value	$ 1,408,000
% Yield	1.32%	[1]
Fair Value	$ 1,411,615
% of Partners' Capital (Net Asset Value)	0.25%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.18% Nordea Bank Finland Due 2017-02-13 [Member]
Face Value	$ 2,000,000
% Yield	1.18%	[1]
Fair Value	$ 2,004,282
% of Partners' Capital (Net Asset Value)	0.35%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.19% Nordea Bank Finland Due 2017-03-01 [Member]
Face Value	$ 1,500,000
% Yield	1.19%	[1]
Fair Value	$ 1,506,862
% of Partners' Capital (Net Asset Value)	0.27%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.43% Norinchukin Bank Due 2017-07-26 [Member]
Face Value	$ 850,000
% Yield	1.43%	[1]
Fair Value	$ 855,978
% of Partners' Capital (Net Asset Value)	0.15%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.43% Norinchukin Bank Due 2017-07-27 [Member]
Face Value	$ 1,150,000
% Yield	1.43%	[1]
Fair Value	$ 1,158,034
% of Partners' Capital (Net Asset Value)	0.21%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.34% State Street Bank And Trust Company Due 2017-07-14 [Member]
Face Value	$ 900,000
% Yield	1.34%	[1]
Fair Value	$ 903,876
% of Partners' Capital (Net Asset Value)	0.16%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.45% Sumitomo Mitsui Banking Corporation Due 2017-07-19 [Member]
Face Value	$ 1,000,000
% Yield	1.45%	[1]
Fair Value	$ 1,007,938
% of Partners' Capital (Net Asset Value)	0.18%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.50% Sumitomo Mitsui Banking Corporation Due 2017-10-12 [Member]
Face Value	$ 1,000,000
% Yield	1.50%	[1]
Fair Value	$ 1,005,213
% of Partners' Capital (Net Asset Value)	0.18%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.50% Sumitomo Mitsui Trust Bank Ltd Due 2017-07-20 [Member]
Face Value	$ 1,500,000
% Yield	1.50%	[1]
Fair Value	$ 1,512,606
% of Partners' Capital (Net Asset Value)	0.27%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.53% Sumitomo Mitsui Trust Bank Ltd Due 2017-08-08 [Member]
Face Value	$ 1,000,000
% Yield	1.53%	[1]
Fair Value	$ 1,008,019
% of Partners' Capital (Net Asset Value)	0.18%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.43% Svenska Handelsbanken AB Due 2017-12-07 [Member]
Face Value	$ 1,000,000
% Yield	1.43%	[1]
Fair Value	$ 1,002,292
% of Partners' Capital (Net Asset Value)	0.18%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.15% Toronto-Dominion Bank Due 2017-05-03 [Member]
Face Value	$ 2,000,000
% Yield	1.15%	[1]
Fair Value	$ 2,015,800
% of Partners' Capital (Net Asset Value)	0.36%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.20% Toronto-Dominion Bank Due 2017-07-13 [Member]
Face Value	$ 1,700,000
% Yield	1.20%	[1]
Fair Value	$ 1,709,858
% of Partners' Capital (Net Asset Value)	0.30%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.34% Wells Fargo Bank, National Association Due 2017-09-22 [Member]
Face Value	$ 750,000
% Yield	1.34%	[1]
Fair Value	$ 751,219
% of Partners' Capital (Net Asset Value)	0.13%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.23% Westpac Banking Corporation Due 2017-01-19 [Member]
Face Value	$ 1,500,000
% Yield	1.23%	[1]
Fair Value	$ 1,504,270
% of Partners' Capital (Net Asset Value)	0.27%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.13% Westpac Banking Corporation Due 2017-03-17 [Member]
Face Value	$ 1,000,000
% Yield	1.13%	[1]
Fair Value	$ 1,009,457
% of Partners' Capital (Net Asset Value)	0.18%
Certificates of Deposit [Member] \| U.S. Certificates of Deposit [Member] \| Banks [Member] \| 1.23% Westpac Banking Corporation Due 2017-07-14 [Member]
Face Value	$ 750,000
% Yield	1.23%	[1]
Fair Value	$ 754,076
% of Partners' Capital (Net Asset Value)	0.13%

[1]	Represents the annualized yield at date of purchase for discount securities, the stated coupon rate for coupon-bearing securities, or the stated interest rate for certificates of deposit.

Consolidated Condensed Schedul9

Consolidated Condensed Schedule of Investments Open Futures Contracts - USD ($)	Dec. 31, 2017	Dec. 31, 2016
% of Partners' Capital (Net Asset Value)	66.39%	81.68%
Investment Owned, at Cost	$ 237,596,840	$ 424,687,833
U.S. Futures Contracts [Member]
Fair Value	$ 10,070,943	$ 2,355,072
% of Partners' Capital (Net Asset Value)	2.82%	0.42%
U.S. Futures Contracts [Member] \| Long U.S. Futures Contracts [Member]
Fair Value	$ 21,997,800	$ 802,305
% of Partners' Capital (Net Asset Value)	6.16%	0.14%
U.S. Futures Contracts [Member] \| Long U.S. Futures Contracts [Member] \| Agricultural Commodities [Member]
Fair Value	$ 305,151	$ (758,117)
% of Partners' Capital (Net Asset Value)	0.09%	(0.13%)
U.S. Futures Contracts [Member] \| Long U.S. Futures Contracts [Member] \| Currencies [Member]
Fair Value	$ 1,214,348	$ 57,122
% of Partners' Capital (Net Asset Value)	0.34%	0.01%
U.S. Futures Contracts [Member] \| Long U.S. Futures Contracts [Member] \| Energy [Member]
Fair Value	$ 4,890,568	$ 2,297,452
% of Partners' Capital (Net Asset Value)	1.37%	0.40%
U.S. Futures Contracts [Member] \| Long U.S. Futures Contracts [Member] \| Equity Indices [Member]
Fair Value	$ 1,917,330	$ (737,627)
% of Partners' Capital (Net Asset Value)	0.53%	(0.13%)
U.S. Futures Contracts [Member] \| Long U.S. Futures Contracts [Member] \| Interest Rate Instruments [Member]
Fair Value	$ 168,325	$ (7,915)
% of Partners' Capital (Net Asset Value)	0.05%	0.00%
U.S. Futures Contracts [Member] \| Long U.S. Futures Contracts [Member] \| Metals [Member]
Fair Value		$ 148,930
% of Partners' Capital (Net Asset Value)		0.03%
U.S. Futures Contracts [Member] \| Long U.S. Futures Contracts [Member] \| Single Stock Futures [Member]
Fair Value	$ 69,750	$ (197,540)
% of Partners' Capital (Net Asset Value)	0.02%	(0.04%)
U.S. Futures Contracts [Member] \| Long U.S. Futures Contracts [Member] \| Copper LME (504 contracts, Jan-May 2018) [Member]
Fair Value	$ 4,962,173
% of Partners' Capital (Net Asset Value)	1.39%
U.S. Futures Contracts [Member] \| Long U.S. Futures Contracts [Member] \| Other [Member]
Fair Value	$ 8,470,155
% of Partners' Capital (Net Asset Value)	2.37%
U.S. Futures Contracts [Member] \| Short U.S. Futures Contracts [Member]
Fair Value	$ (11,926,857)	$ 1,552,767
% of Partners' Capital (Net Asset Value)	(3.34%)	0.28%
U.S. Futures Contracts [Member] \| Short U.S. Futures Contracts [Member] \| Agricultural Commodities [Member]
Fair Value	$ 445,659	$ 1,280,501
% of Partners' Capital (Net Asset Value)	0.12%	0.24%
U.S. Futures Contracts [Member] \| Short U.S. Futures Contracts [Member] \| Currencies [Member]
Fair Value	$ (800,473)	$ 1,039,713
% of Partners' Capital (Net Asset Value)	(0.22%)	0.18%
U.S. Futures Contracts [Member] \| Short U.S. Futures Contracts [Member] \| Energy [Member]
Fair Value	$ (1,010,725)	$ (108,150)
% of Partners' Capital (Net Asset Value)	(0.28%)	(0.02%)
U.S. Futures Contracts [Member] \| Short U.S. Futures Contracts [Member] \| Equity Indices [Member]
Fair Value	$ (468,325)	$ (169,214)
% of Partners' Capital (Net Asset Value)	(0.13%)	(0.03%)
U.S. Futures Contracts [Member] \| Short U.S. Futures Contracts [Member] \| Interest Rate Instruments [Member]
Fair Value	$ 896,903	$ (25,730)
% of Partners' Capital (Net Asset Value)	0.25%	0.00%
U.S. Futures Contracts [Member] \| Short U.S. Futures Contracts [Member] \| Metals [Member]
Fair Value		$ (479,571)
% of Partners' Capital (Net Asset Value)		(0.09%)
U.S. Futures Contracts [Member] \| Short U.S. Futures Contracts [Member] \| Single Stock Futures [Member]
Fair Value	$ (34,323)	$ 15,218
% of Partners' Capital (Net Asset Value)	(0.01%)	0.00%
U.S. Futures Contracts [Member] \| Short U.S. Futures Contracts [Member] \| Other [Member]
Fair Value	$ (6,851,903)
% of Partners' Capital (Net Asset Value)	(1.92%)
U.S. Futures Contracts [Member] \| Short U.S. Futures Contracts [Member] \| Copper LME (424 contracts, Jan-Mar 2018) [Member]
Fair Value	$ (4,103,670)
% of Partners' Capital (Net Asset Value)	(1.15%)
Foreign Futures Contracts [Member]
Fair Value	$ (1,140,526)	$ 6,566,157
% of Partners' Capital (Net Asset Value)	(0.32%)	1.16%
Foreign Futures Contracts [Member] \| Long Foreign Futures Contracts [Member]
Fair Value	$ (2,167,823)	$ 6,384,437
% of Partners' Capital (Net Asset Value)	(0.61%)	1.13%
Foreign Futures Contracts [Member] \| Long Foreign Futures Contracts [Member] \| Agricultural Commodities [Member]
Fair Value	$ (334)	$ (48,039)
% of Partners' Capital (Net Asset Value)	0.00%	(0.01%)
Foreign Futures Contracts [Member] \| Long Foreign Futures Contracts [Member] \| Currencies [Member]
Fair Value	$ (24,734)	$ 2,449
% of Partners' Capital (Net Asset Value)	(0.01%)	0.00%
Foreign Futures Contracts [Member] \| Long Foreign Futures Contracts [Member] \| Energy [Member]
Fair Value	$ 4,034	$ 57,736
% of Partners' Capital (Net Asset Value)	0.00%	0.01%
Foreign Futures Contracts [Member] \| Long Foreign Futures Contracts [Member] \| Equity Indices [Member]
Fair Value	$ 523,254	$ 3,930,592
% of Partners' Capital (Net Asset Value)	0.15%	0.70%
Foreign Futures Contracts [Member] \| Long Foreign Futures Contracts [Member] \| Interest Rate Instruments [Member]
Fair Value	$ (2,676,823)	$ 2,418,594
% of Partners' Capital (Net Asset Value)	(0.75%)	0.43%
Foreign Futures Contracts [Member] \| Long Foreign Futures Contracts [Member] \| Metals [Member]
Fair Value	$ 7,752	$ 12,893
% of Partners' Capital (Net Asset Value)	0.00%	0.00%
Foreign Futures Contracts [Member] \| Long Foreign Futures Contracts [Member] \| Single Stock Futures [Member]
Fair Value	$ (972)	$ 10,212
% of Partners' Capital (Net Asset Value)	0.00%	0.00%
Foreign Futures Contracts [Member] \| Short Foreign Futures Contracts [Member]
Fair Value	$ 1,027,297	$ 181,720
% of Partners' Capital (Net Asset Value)	0.29%	0.03%
Foreign Futures Contracts [Member] \| Short Foreign Futures Contracts [Member] \| Agricultural Commodities [Member]
Fair Value	$ 214,672	$ 215,816
% of Partners' Capital (Net Asset Value)	0.06%	0.04%
Foreign Futures Contracts [Member] \| Short Foreign Futures Contracts [Member] \| Currencies [Member]
Fair Value	$ 311,035	$ 39,407
% of Partners' Capital (Net Asset Value)	0.09%	0.01%
Foreign Futures Contracts [Member] \| Short Foreign Futures Contracts [Member] \| Energy [Member]
Fair Value	$ 42,517
% of Partners' Capital (Net Asset Value)	0.01%
Foreign Futures Contracts [Member] \| Short Foreign Futures Contracts [Member] \| Equity Indices [Member]
Fair Value	$ 200,527	$ 200,192
% of Partners' Capital (Net Asset Value)	0.06%	0.03%
Foreign Futures Contracts [Member] \| Short Foreign Futures Contracts [Member] \| Interest Rate Instruments [Member]
Fair Value	$ 264,190	$ (273,674)
% of Partners' Capital (Net Asset Value)	0.07%	(0.05%)
Foreign Futures Contracts [Member] \| Short Foreign Futures Contracts [Member] \| Metals [Member]
Fair Value	$ (5,644)	$ (21)
% of Partners' Capital (Net Asset Value)	0.00%	0.00%
U.S. Exchange Forward Currency [Member]
Fair Value	$ 1,010,940	$ 697,153
% of Partners' Capital (Net Asset Value)	0.28%	0.13%
U.S. Exchange Forward Currency [Member] \| Long U.S. Forward Currency Contracts [Member]
Fair Value	$ 3,171,470	$ (860,243)
% of Partners' Capital (Net Asset Value)	0.88%	(0.15%)
U.S. Exchange Forward Currency [Member] \| Short U.S. Forward Currency Contracts [Member]
Fair Value	$ (2,160,530)	$ 1,557,396
% of Partners' Capital (Net Asset Value)	(0.60%)	0.28%
Foreign Exchange Forward Currency [Member]
Fair Value	$ 891,576	$ 133,000
% of Partners' Capital (Net Asset Value)	0.25%	0.02%
Foreign Exchange Forward Currency [Member] \| Long Foreign Forward Currency Contracts [Member]
Fair Value	$ (273,779)	$ 472,811
% of Partners' Capital (Net Asset Value)	(0.08%)	0.08%
Foreign Exchange Forward Currency [Member] \| Short Foreign Forward Currency Contracts [Member]
Fair Value	$ 1,165,355	$ (339,811)
% of Partners' Capital (Net Asset Value)	0.33%	(0.06%)
Futures Contracts [Member]
Fair Value	$ 8,930,417	$ 8,921,229
% of Partners' Capital (Net Asset Value)	2.50%	1.58%
Forward Contracts [Member]
Fair Value	$ 1,902,516	$ 830,153
% of Partners' Capital (Net Asset Value)	0.53%	0.15%

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($)		12 Months Ended
Consolidated Statements of Operations - USD ($)		Dec. 31, 2017	Dec. 31, 2016		Dec. 31, 2015
Net realized gain (loss) on:
Futures, forward and swap contracts		$ 23,750,949	$ 24,891,752		$ 50,926,606
Investments in SMFSF		442,126
Investments in securities and certificates of deposit		174,166	(871,127)		(338,953)
Net change in unrealized gain (loss) on:
Futures, forward contracts and swap contracts		2,273,990	3,107,925		(33,847,899)
Investments in SMFSF		1,056,968
Investments in securities and certificates of deposit		(88,535)	(58,379)		(180,525)
Exchange membership		43,000
Brokerage commissions and trading expenses		(4,949,642)	(5,138,660)		(5,697,454)
Net realized and change in unrealized gain (loss) on investments		22,703,022	21,931,511		10,861,775
Income
Interest income		5,288,556	5,047,602		3,317,092
Expenses
Trading Advisor management fee		6,647,546	8,297,973		9,602,774
Trading Advisor incentive fee		4,699,504	5,831,065		9,565,572
Cash Managers fees		336,470	489,477		474,692
General Partner management and performance fees		6,427,712	9,109,377		10,471,750
Selling agent and broker dealer servicing fees - General Partner		5,963,392	8,453,865		9,604,363
General Partner 1% allocation		19,310	(98,751)		(272,098)
Administrative fee - General Partner		1,208,280	1,741,461		2,084,094
Investment Manager fees		953,748	1,428,562		1,011,765
Distribution (12b-1) fees		25,397	29,837		21,977
Operating services fee		130,800	239,662		404,706
Total expenses		26,412,159	35,522,528		42,969,595
Net investment income (loss)		(21,123,603)	(30,474,926)		(39,652,503)
Net income (loss)		1,579,419	(8,543,415)		(28,790,728)
Less: net (income) loss attributable to non-controlling interest		332,291	(1,232,889)		1,852,537
Net Income (Loss) attributable to the Fund		1,911,710	(9,776,304)		$ (26,938,191)
Increase (decrease) in net asset value per unit for the year
Class A [Member]
Expenses
Net income (loss)		$ 262,925	$ (8,875,442)		$ (20,791,261)
Increase (decrease) in net asset value per unit for the year		$ 50.88	$ (116.23)		$ (202.04)
Net income (loss) per unit (in dollars per unit)	[1]	$ 3.75	$ (96.83)		$ (201.98)
Weighted average number of units outstanding (in units)		70,186.5235	91,658.5356		102,939.0690
Class B [Member]
Expenses
Net income (loss)		$ 1,088,832	$ (896,813)		$ (6,049,067)
Increase (decrease) in net asset value per unit for the year		$ 186.46	$ (61.87)		$ (181.22)
Net income (loss) per unit (in dollars per unit)	[1]	$ 49.92	$ (28.54)		$ (162.65)
Weighted average number of units outstanding (in units)		21,810.1053	31,419.6305		37,189.7073
Class I [Member]
Expenses
Net income (loss)		$ 138,707	$ (4,049)		$ (97,863)
Increase (decrease) in net asset value per unit for the year		$ 40.26	$ (1.06)		$ (20.81)
Net income (loss) per unit (in dollars per unit)	[1]	$ 38.89	$ (1.06)		$ (26.18)
Weighted average number of units outstanding (in units)		3,566.9128	3,828.4541		3,737.8571
Class R [Member]
Expenses
Net income (loss)		$ 421,246
Increase (decrease) in net asset value per unit for the year		$ 38.05		[2]
Net income (loss) per unit (in dollars per unit)	[1]	$ 33.19
Weighted average number of units outstanding (in units)		12,691.5728

[1]	based on weighted average number of units outstanding during the year.
[2]	Class R Units were first issued on April 1, 2017.

Consolidated Statements of Op11

Consolidated Statements of Operations (Parenthetical)	12 Months Ended
Consolidated Statements of Operations (Parenthetical)	Dec. 31, 2017	Dec. 31, 2016
Income Statement [Abstract]
General partner allocation percentage	1.00%	1.00%

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($)	12 Months Ended
Consolidated Statements of Cash Flows - USD ($)	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash flows from operating activities
Net income (loss)	$ 1,579,419	$ (8,543,415)	$ (28,790,728)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities
Net change in unrealized (gain) loss from futures, forwards and swap trading	(2,362,114)	(3,512,299)	33,847,899
Net realized and change in unrealized (gain) loss on SMFSF, securities and certificates of deposit	(1,584,725)	929,506	519,478
Purchases of securities and certificates of deposit	(713,358,772)	(1,375,281,507)	(881,073,564)
Proceeds from disposition of SMFSF, securities and certificates of deposit	886,282,982	1,388,094,718	866,151,335
Changes in
Exchange membership	(43,000)
Trading Advisor management fee payable	(316,335)	(416,228)	89,328
Trading Advisor incentive fee payable	(283,481)	1,364,323	(10,760,210)
Commissions and other trading fees payable on open contracts	(39,407)	(15,486)	(8,205)
Cash Managers fees payable	(27,251)	(6,972)	(1,577)
General Partner management and performance fees payable	(222,010)	(106,606)	(141,504)
General Partner 1% allocation receivable/payable	127,507	172,679	(809,715)
Selling agent and broker dealer servicing fees payable - General Partner	(196,288)	(104,787)	(102,535)
Administrative fee payable - General Partner	(38,594)	(28,335)	(27,692)
Investment Manager fee payable	(16,315)	44,798	9,263
Distribution (12b-1) fees payable	370	757	1,883
Operating services fee payable	(2,238)	(15,906)	3,706
Net cash provided by (used in) operating activities	169,499,748	2,575,240	(21,092,838)
Cash flows from financing activities
Subscriptions	6,390,837	27,306,759	40,025,835
Subscriptions received in advance	287,000	2,687,191	1,086,965
Redemptions	(188,262,404)	(104,146,723)	(128,197,392)
Non-controlling interest - subscriptions	12,855,910	16,228,805	25,819,976
Non-controlling interest - redemptions	(9,262,326)	(5,539,950)	(8,313,699)
Non-controlling interest - dividends declared		(69,109)	(2,818,342)
Non-controlling interest - dividends reinvested		67,579	2,572,536
Effect of deconsolidation	(19,504,266)
Net cash provided by (used in) financing activities	(197,495,249)	(63,465,448)	(69,824,121)
Net increase (decrease) in cash and cash equivalents	(27,995,501)	(60,890,208)	(90,916,959)
Cash and cash equivalents, beginning of year	118,136,562	179,026,770	269,943,729
Cash and cash equivalents, end of year	90,141,061	118,136,562	179,026,770
End of year cash and cash equivalents consists of
Cash in broker trading accounts	45,780,428	80,906,352	122,736,345
Cash and cash equivalents	44,360,633	37,230,210	56,290,425
Total end of year cash and cash equivalents	90,141,061	118,136,562	179,026,770
Supplemental disclosure of cash flow information
Prior year redemptions paid	18,217,216	11,143,201	10,423,609
Prior year subscriptions received in advance	2,687,191	1,086,965	2,577,065
Supplemental schedule of non-cash financing activities
Redemptions payable	$ 11,825,677	$ 18,217,216	$ 11,143,201

Consolidated Statements of Ca13

Consolidated Statements of Cash Flows (Parenthetical)	12 Months Ended
Consolidated Statements of Cash Flows (Parenthetical)	Dec. 31, 2017	Dec. 31, 2016
Statement of Cash Flows [Abstract]
General partner allocation percentage	1.00%	1.00%

Consolidated Statements of Chan

Consolidated Statements of Changes in Partners' Capital (Net Asset Value) - USD ($)	Total		Non-Controlling Interest [Member]	Class A [Member]	Class B [Member]	Class I [Member]	Class R [Member]
Balance at beginning at Dec. 31, 2014	$ 741,554,213		$ 7,282,068	$ 468,243,719	$ 262,572,733	$ 3,455,693
Balance at beginning (in units) at Dec. 31, 2014				106,074.0114	41,522.9665	3,438.9708
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	(28,790,728)		(1,852,537)	$ (20,791,261)	$ (6,049,067)	$ (97,863)
Subscriptions	68,298,890		25,695,990	$ 27,895,857	$ 14,297,043	$ 410,000
Subscriptions (in units)				6,332.1539	2,265.3247	389.4833
Redemptions	(137,230,683)		(8,339,239)	$ (56,971,712)	$ (71,919,732)
Redemptions (in units)				(13,128.0421)	(11,382.5641)
Transfers				$ (5,428,055)	$ 5,428,055
Transfers (in units)				(1,243.1651)	859.9317
Dividends declared	(2,818,342)		(2,818,342)
Dividends reinvested	2,572,536		2,572,536
Balance at ending at Dec. 31, 2015	$ 643,585,886		22,540,476	$ 412,948,548	$ 204,329,032	$ 3,767,830
Balance at ending (in units) at Dec. 31, 2015				98,034.9581	33,265.6588	3,828.4541
Net asset value per unit at beginning of period (in dollars per unit) at Dec. 31, 2014		[1]
Net asset value per unit at end of period (in dollars per unit) at Dec. 31, 2015		[1]		$ 4,212.26	$ 6,142.34	$ 984.17		[1]
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	$ (8,543,415)		1,232,889	$ (8,875,442)	$ (896,813)	$ (4,049)
Subscriptions	44,919,032		16,525,308	$ 17,888,149	$ 10,505,575
Subscriptions (in units)				4,089.2273	1,658.7195
Redemptions	(116,760,688)		(5,819,470)	$ (71,271,268)	$ (39,669,950)
Redemptions (in units)				(16,542.2022)	(6,245.3148)
Transfers				$ (3,244,230)	$ 3,244,230
Transfers (in units)				(756.9529)	514.7436
Dividends declared	(69,109)		(69,109)
Dividends reinvested	67,579		67,579
Balance at ending at Dec. 31, 2016	563,199,285		34,477,673	$ 347,445,757	$ 177,512,074	$ 3,763,781
Balance at ending (in units) at Dec. 31, 2016				84,825.0303	29,193.8071	3,828.4541	0
Net asset value per unit at end of period (in dollars per unit) at Dec. 31, 2016				$ 4,096.03	$ 6,080.47	$ 983.11	$ 1,000	[1]
Increase (Decrease) in Partners' Capital [Roll Forward]
Net income (loss)	1,579,419		(332,291)	$ 262,925	$ 1,088,832	$ 138,707	$ 421,246
Subscriptions	22,095,648		13,017,620	$ 4,210,828	$ 3,582,200	$ 500,000	$ 785,000
Subscriptions (in units)				1,049.5961	593.1117	519.3249	801.6052
Redemptions	(191,168,951)		(8,993,026)	$ (109,127,184)	$ (70,063,639)	$ (855,189)	$ (2,129,913)
Redemptions (in units)				(27,302.0042)	(11,836.2255)	(881.5011)	(2,186.9855)
Transfers				$ (1,932,003)	$ (11,462,386)		$ 13,394,389
Transfers (in units)				(490.7801)	(1,889.0556)		13,399.0197
Effect of Deconsolidation	(38,169,976)		(38,169,976)
Balance at ending at Dec. 31, 2017	$ 357,535,425			$ 240,860,323	$ 100,657,081	$ 3,547,299	$ 12,470,722
Balance at ending (in units) at Dec. 31, 2017				58,081.8421	16,061.6377	3,466.2779	12,013.6394
Net asset value per unit at end of period (in dollars per unit) at Dec. 31, 2017				$ 4,146.91	$ 6,266.93	$ 1,023.37	$ 1,038.05	[1]

[1]	Class R Units were first issued on April 1, 2017.

Organization and Summary of Sig

Organization and Summary of Significant Accounting Policies	12 Months Ended
Organization and Summary of Significant Accounting Policies	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization and Summary of Significant Accounting Policies	1. Organization and Summary of Significant Accounting Policies Description of the Fund Futures Portfolio Fund, Limited Partnership (“Fund”) is a Maryland limited partnership, which operates as a commodity investment pool that commenced trading operations on January 2, 1990. The Fund issues units of limited partner interests (“Units”) in six classes, Class A, A2, A3, B, I and R, which represent units of fractional undivided beneficial interest in and ownership of the Fund. The Fund will automatically terminate on December 31, 2025, unless terminated earlier as provided in the Third Amended and Restated Limited Partnership Agreement (“Partnership Agreement”). The Fund uses commodity trading advisors to engage in the speculative trading of futures contracts, forward currency contracts and other financial instruments traded in the United States (“U.S.”) and internationally. The Fund is a registrant with the U.S. Securities and Exchange Commission (“SEC”) pursuant to the U.S. Securities Exchange Act of 1934, as amended (“1934 Act”). As a registrant, the Fund is subject to the regulations of the SEC and the disclosure requirements of the 1934 Act. As a commodity pool, the Fund is subject to the regulations of the U.S. Commodity Futures Trading Commission (“CFTC”), an agency of the U.S. Government, which regulates most aspects of the commodity futures industry; rules of the National Futures Association (“NFA”), an industry self-regulatory organization; rules of Financial Industry Regulatory Authority (“FINRA”), an industry self-regulatory organization; and the requirements of commodity exchanges where the Fund executes transactions. Additionally, the Fund is subject to the requirements of the futures brokers and interbank market makers through which the Fund trades. Steben & Company, Inc. (“General Partner”), is the general partner of the Fund and a Maryland corporation registered with the CFTC as a commodity pool operator and a commodities introducing broker, and is also registered with the SEC as a registered investment advisor and a broker dealer. The General Partner is a member of the NFA and FINRA. The General Partner manages all aspects of the Fund’s business and serves as one of the Fund’s selling agents. The six classes of Units in the Fund differ only in the fees applicable to each class. Class A Units are subject to a 2% per annum selling agent fee. Class A2 Units may pay an up-front sales commission of up to 3% of the offering price and a 0.6% per annum selling agent fee. Class A3 Units may pay an up-front sales commission of up to 2% of the offering price and a 0.75% per annum selling agent fee. Class B Units are subject to a 0.2% per annum broker dealer servicing fee. Class I Units are subject to higher minimum investments requirements and lower General Partner management fees (0.75% per annum instead of 1.50% per annum) as well as a General Partner performance fee (7.5% of new profits, described more fully in Footnote 4). Class R Units do not pay selling compensation or servicing fees to selling agents, and are generally intended for clients of registered investment advisors. Class R Units were introduced in March 2017, and Class A2 and A3 Units were introduced in June 2017. On April 1, 2017, approximately $14 million in Class B Units transferred to R Units. There were no Class A2 or Class A3 Units outstanding on December 31, 2017. During 2014, the Fund purchased $58.5 million of Class I shares of the Steben Managed Futures Strategy Fund (“SMFSF”). SMFSF is a non-diversified series of shares of beneficial interest of Steben Alternative Investment Fund (the “Trust”), a statutory trust organized under the laws of the State of Delaware, and is registered under the Investment Company Act of 1940, as amended (the “1940 Act”), as an open-end investment company. SMFSF issues four classes of shares: Class A, C, I and N. The General Partner serves as the investment manager of SMFSF. SMFSF has a similar investment strategy to the Fund, using commodity trading advisors to engage in the speculative trading of futures contracts, forward currency contracts and other financial instruments. Prior to March 2016, SMFSF used a total return swap to gain access to the gains and losses of a basket of trading advisors. Prior to August 31, 2017, the Fund owned more than 50% of the outstanding shares of SMFSF and therefore had effective control of that entity. Accordingly, the assets, liabilities and operating results of SMFSF were consolidated with the Fund through that date. The portion of SMFSF that was not owned by the Fund was presented as the non-controlling interest. On August 31, 2017, the Fund’s ownership of SMFSF dropped below 50%. With this decrease in ownership, the Fund no longer has effective control of SMFSF, and effective August 31, 2017 no longer consolidates the assets, liabilities and operating results of SMFSF into the Fund. The Fund continues to hold an investment in SMFSF and any changes in the fair value of its investment in SMFSF are reported on the Statement of Operations. The investment in SMFSF is reported on the statement of financial condition as investment in SMFSF. For financial reporting purposes, SMFSF is treated as a related party. Please see Note 12 for additional information regarding the deconsolidation of this subsidiary. For the years ended December 31, 2017 and 2016, the Fund redeemed $19 million and $6 million, respectively, of its investment in SMFSF. Significant Accounting Policies Accounting Principles The Fund’s consolidated financial statements are prepared in conformity with U.S. generally accepted accounting principles (“GAAP”). Under GAAP, the Fund is an investment company and follows accounting and reporting guidance under the Financial Accounting Standards Board (FASB) Accounting Standard Codification (ASC) Topic 946, Financial Services – Investment Companies Consolidation Through August 31, 2017, the accompanying consolidated financial statements included the accounts of the Fund and SMFSF, for which the Fund was the majority shareholder. On August 31, 2017, the Fund ceased being the majority shareholder of SMFSF and no longer consolidates that entity into its financial statements. Intercompany accounts and transactions have been eliminated in consolidation. Use of Estimates Preparing consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates. Revenue Recognition Futures, forward currency contracts, investments in securities, certificates of deposit, and the exchange membership are recorded on a trade date basis, and gains or losses are realized when contracts/positions are liquidated. Realized gains and losses on investments in securities and certificates of deposit are determined on a specific identification basis and are included in net realized and change in unrealized gain (loss) in the consolidated statements of operations. Unrealized gains and losses on open contracts (the difference between contract trade price and fair value) are reported in the consolidated statements of financial condition as net unrealized gain or loss, as there exists a right of offset of any unrealized gains or losses. The difference between cost and the fair value of open investments in securities and certificates of deposit is reflected as unrealized gain or loss on investments in securities and certificates of deposit. Any change in net unrealized gain or loss from the preceding period is reported in the consolidated statements of operations. Interest income earned on investments in securities, certificates of deposit and other cash and cash equivalent balances is recorded on an accrual basis. Market discounts and premiums on fixed-income securities are amortized daily over the expected life of the security using the effective yield method. Fair Value of Financial Instruments Financial instruments are recorded at fair value, the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. Assets and liabilities recorded at fair value are classified within a fair value hierarchy based upon the level of judgment associated with the inputs used to measure their value. This fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The three levels of the fair value hierarchy are described below: Level 1 – Fair value is based on unadjusted quoted prices for identical instruments in active markets. Financial instruments utilizing Level 1 inputs include futures contracts, U.S. Treasury securities and mutual funds. Level 2 – Fair value is based on quoted prices for similar instruments in active markets and inputs other than quoted prices that are observable for the financial instrument, such as interest rates and yield curves that are observable at commonly quoted intervals using a market approach. Financial instruments utilizing Level 2 inputs include forward currency contracts, swaps, commercial paper, corporate notes, certificates of deposit, asset backed securities and the exchange membership. Level 3 – Fair value is based on valuation techniques in which one or more significant inputs are unobservable. The Fund has no financial instruments utilizing Level 3 inputs. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, an instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The Fund’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the investment. The Fund assesses the classification of the instruments at each measurement date, and any transfers between levels are recognized on the actual date of the event or change in circumstances that caused the transfer in accordance with the Fund’s accounting policy regarding the recognition of transfers between levels of the fair value hierarchy. For the years ended December 31, 2017 and 2016, there were no such transfers between levels. A description of the valuation techniques applied to the Fund’s major categories of assets and liabilities measured at fair value on a recurring basis follows. U.S. Treasury securities are recorded at fair value based on bid and ask quotes for identical instruments. Commercial paper, certificates of deposit, corporate notes, asset backed securities and the exchange membership are recorded at fair value based on bid and ask quotes for similar, but not identical, instruments. Accordingly, U.S. Treasury securities are classified within Level 1, and commercial paper, certificates of deposit, corporate notes, asset backed securities and exchange memberships are classified within Level 2. The investment in SMFSF (a mutual fund), a money market fund and futures contracts are valued using quoted market prices for identical assets in active markets, and are classified within Level 1. The money market fund is included in cash and cash equivalents in the consolidated statements of financial condition. The fair values of forward currency contracts are based upon third-party quoted dealer values on the interbank market and are classified within Level 2. Cash and Cash Equivalents Cash and cash equivalents may include cash, funds held in money market accounts and short-term investments with maturities of three months or less at the date of acquisition and that are not held for sale in the normal course of business. The Fund maintains deposits with financial institutions in amounts that are in excess of federally insured limits; however, the Fund does not believe it is exposed to any significant credit risk. Exchange Membership During 2017, the Fund purchased a membership interest in the Chicago Mercantile Exchange (CME). By purchasing the membership, the Fund will incur reduced fees for transactions on the CME. The membership is accounted at its fair value and changes in fair value are reported in net change in unrealized gain (loss) in exchange membership on the statement of operations. Brokerage Commissions and Trading Expenses Brokerage commissions and trading expenses include brokerage and other trading fees, and are charged to expense when contracts are opened and closed. Redemptions Payable Redemptions payable represent redemptions that meet the requirements of the Fund and have been approved by the General Partner prior to year-end. These redemptions have been recorded using the year end net asset value per Unit. Income Taxes The Fund prepares calendar year U.S. and applicable state and local tax returns. The Fund is not subject to federal income taxes as each partner is individually liable for his or her allocable share of the Fund’s income, expenses and trading gains or losses. The Fund evaluates the tax positions taken or expected to be taken in the course of preparing the Fund’s tax returns to determine whether the tax positions are more-likely-than-not to be sustained when examined by the applicable tax authority. Tax positions not deemed to meet the more-likely-than-not threshold would be recorded as a tax benefit or expense and asset or liability in the current year. Management has determined there are no material uncertain income tax positions through December 31, 2017. With few exceptions, the Fund is no longer subject to U.S. federal, or state and local income tax examinations by tax authorities for years before 2014. Foreign Currency Transactions The Fund has certain investments denominated in foreign currencies. The purchase and sale of investments, and income and expenses are translated at the rates of exchange prevailing on the respective dates of such transactions. The Fund does not isolate that portion of the results of operations resulting from changes in foreign exchange rates on investments from the fluctuations arising from changes in market prices of investments held. Such fluctuations are included with the net realized and change in unrealized gain or loss on such investments in the consolidated statements of operations. Swap Agreement Through its investment in SMFSF, the Fund had exposure to a total return swap with Deutsche Bank AG. This two-party contract was entered in to exchange, or swap, the returns realized on a basket of CTA programs. The swap agreement was terminated in March 2016. Reclassification Certain amounts in the 2016 and 2015 consolidated financial statements may have been reclassified to conform to the 2017 presentation without affecting previously reported partners’ capital (net asset value) or net income (loss). New Accounting Pronouncements Revenue from Contracts with Customers In May 2014, the FASB issued revenue recognition guidance, which will replace most pre-existing revenue recognition guidance in current U.S. generally accepted accounting principles. The guidance provides a framework for addressing revenue recognition and, for the Fund, is effective January 1, 2018. The Fund evaluated the impact of this new guidance and has determined that its adoption will not have a material effect on the financial statements. Restricted Cash In November 2016, the FASB issued guidance regarding the presentation of changes in restricted cash and restricted cash equivalents within the statement of cash flows. The Fund will adopt the guidance on January 1, 2018, and does not expect its adoption to have a material effect on the financial statements.

Fair Value Disclosures

Fair Value Disclosures	12 Months Ended
Fair Value Disclosures	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Fair Value Disclosures	2. Fair Value Disclosures The Fund’s assets and liabilities, measured at fair value on a recurring basis, are summarized in the following tables by the type of inputs applicable to the fair value measurements: At December 31, 2017 Level 1 Level 2 Total Equity in broker trading accounts: Net unrealized gain (loss) on open futures contracts* $ 8,930,417 $ — $ 8,930,417 Net unrealized gain (loss) on open forward currency contracts* — 1,920,516 1,902,516 Cash and cash equivalents: Money market fund 42,775,036 — 42,775,036 Investment in SMFSF 34,101,936 — 34,101,936 Investments in securities: U.S. Treasury securities* 58,329,191 — 58,329,191 Asset backed securities* — 11,574,641 11,574,641 Commercial paper* — 38,174,305 38,174,305 Corporate notes* — 129,299,879 129,299,879 Exchange membership — 232,000 232,000 Total $ 144,136,580 $ 181,183,341 $ 325,319,921 See the condensed schedule of investments for further description. At December 31, 2016 Level 1 Level 2 Total Equity in broker trading accounts: Net unrealized gain (loss) on open futures contracts $ 8,921,229 $ — $ 8,921,229 Net unrealized gain (loss) on open forward currency contracts* — 830,153 830,153 Cash and cash equivalents: Money market fund 24,246,700 — 24,246,700 Investments in securities: U.S. Treasury securities* 91,313,694 — 91,313,694 Asset backed securities* — 36,022,365 36,022,365 Commercial paper* — 67,749,447 67,749,447 Corporate notes* — 229,354,824 229,354,824 Certificates of deposit* — 35,576,495 35,576,495 Total $ 124,481,623 $ 369,533,284 $ 494,014,907 *See the consolidated condensed schedule of investments for further description. There were no Level 3 holdings at December 31, 2017 and 2016, or during the years then ended. In addition to the financial instruments listed above, substantially all of the Fund’s other assets and liabilities are considered financial instruments and are reflected at fair value, or at carrying amounts that approximate fair value because of the short maturity of the instruments.

Derivative Instruments Disclosu

Derivative Instruments Disclosures	12 Months Ended
Derivative Instruments Disclosures	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments Disclosures	3. Derivative Instruments Disclosures The Fund’s derivative contracts are comprised of futures and forward currency contracts, none of which are designated as hedging instruments. At December 31, 2017 and 2016, the Fund’s derivative contracts had the following impact on the consolidated statements of financial condition: December 31, 2017 Derivative Assets and Liabilities, at fair value Consolidated Statements of Financial Condition Location Gross Gross Amounts Offset in the Net Amount of Equity in broker trading accounts: Net unrealized gain (loss) on open futures contracts Agricultural commodities $ 1,610,106 $ (644,958 ) $ 965,148 Currencies 1,970,468 (1,270,292 ) 700,176 Energy 5,254,612 (1,328,218 ) 3,926,394 Equity indices 4,652,670 (2,479,884 ) 2,172,786 Interest rate instruments 2,293,476 (3,640,881 ) (1,347,405 ) Metals 13,922,808 (11,443,945 ) 2,478,863 Single stock futures 234,102 (199,647 ) 34,455 Net unrealized gain (loss) on open futures contracts $ 29,938,242 $ (21,007,825 ) $ 8,930,417 Net unrealized gain (loss) on open forward currency contracts $ 5,193,499 $ (3,290,983 ) $ 1,902,516 At December 31, 2017, there were 45,440 open futures contracts and 2,030 open forward currency contracts. The Fund’s financial assets, derivative assets, and cash collateral held by counterparties at December 31, 2017 were: Gross Amounts Not Offset in the Counterparty Net Amount of Assets in the Statements of Financial Cash Collateral Net Amount Deutsche Bank AG $ 332,031 $ — $ — $ 332,031 Deutsche Bank Securities, Inc. 838,938 — — 838,938 JP Morgan Securities, LLC 1,270,509 — — 1,270,509 SG Americas Securities, LLC 6,820,970 — — 6,820,970 Société Générale International Limited 1,122,595 — — 1,122,595 UBS AG 447,890 — — 447,890 Total $ 10,832,933 $ — $ — $ 10,832,933 December 31, 2016 Derivative Assets and Liabilities, at fair value Consolidated Statements of Financial Condition Location Gross Gross Amounts Net Amount of Equity in broker trading accounts: Net unrealized gain (loss) on open futures contracts Agricultural commodities $ 2,294,353 $ (1,604,192 ) $ 690,161 Currencies 2,761,758 (1,623,067 ) 1,138,691 Energy 2,460,760 (213,722 ) 2,247,038 Equity indices 6,420,118 (3,196,175 ) 3,223,943 Interest rate instruments 4,870,096 (2,758,821 ) 2,111,275 Metals 14,236,047 (14,553,816 ) (317,769 ) Single stock futures 145,242 (317,352 ) (172,110 ) Net unrealized gain (loss) on open futures contracts $ 33,188,374 $ (24,267,145 ) $ 8,921,229 Net unrealized gain (loss) on open forward currency contracts $ 5,182,502 $ (4,352,349 ) $ 830,153 At December 31, 2016, there were 59,052 open futures contracts and 2,054 open forward currency contracts. The Fund’s financial assets, derivative assets, and cash collateral held by counterparties at December 31, 2016 were: Gross Amounts Not Offset in the Statements of Financial Condition Counterparty Net Amount of Statements of Financial Condition Financial Cash Collateral Net Amount Deutsche Bank AG $ 21,799 $ — $ — $ 21,799 Deutsche Bank Securities, Inc. 24,787 — — 24,787 JP Morgan Securities, LLC 1,493,645 — — 1,493,645 SG Americas Securities, LLC 7,402,797 — — 7,402,797 Société Générale International Limited 165,990 — — 165,990 UBS AG 642,364 — — 642,364 Total $ 9,751,382 $ — $ — $ 9,751,382 For the years ended December 31, 2017, 2016 and 2015, the Fund’s futures and forwards contracts had the following impact on the consolidated statements of operations: 2017 2016 Types of Exposure Net realized Net change Net realized Net change Futures contracts Agricultural commodities $ (6,968,291 ) $ 274,000 $ (4,535,068 ) $ (779,900 ) Currencies (7,944,502 ) 34,900 11,798,113 (960,570 ) Energy (16,322,348 ) 1,714,614 (17,711,372 ) (1,339,229 ) Equity indices 85,262,449 (792,640 ) 6,114,947 4,650,786 Interest rate instruments (21,099,792 ) (3,289,779 ) 32,280,416 6,307,243 Metals (5,438,472 ) 3,067,571 (11,266,353 ) (3,058,407 ) Single stock futures 2,546,268 206,565 848,998 (311,372 ) Total futures contracts 30,035,312 1,215,231 17,529,681 4,508,551 Forward currency contracts (7,815,159 ) 1,146,883 (436,996 ) 2,444,644 Swap contract — — 8,706,658 (3,440,896 ) Total futures, forward currency and swap contracts $ 22,220,153 $ 2,362,114 $ 25,799,343 $ 3,512,299 2015 Types of Exposure Net realized Net change Futures contracts Agricultural commodities $ (9,005,724 ) $ (480,153 ) Currencies (847,018 ) (1,910,235 ) Energy 45,065,516 (6,030,206 ) Equity indices (5,916,524 ) (5,606,594 ) Interest rate instruments 27,500,225 (17,693,919 ) Metals 4,126,059 2,975,459 Single stock futures (197,987 ) (266,099 ) Total futures contracts 60,724,547 (29,011,747 ) Forward currency contracts (8,884,366 ) (205,234 ) Swap contract — (4,630,918 ) Total futures, forward currency and swap contracts $ 51,840,181 $ (33,847,899 ) For the years ended December 31, 2017, 2016 and 2015, the number of futures contracts closed was 2,003,372, 1,886,735, 1,932,217, respectively, and the number of forward currency contracts closed was 236,846, 173,576, and 151,846, respectively.

General Partner

General Partner	12 Months Ended
General Partner	Dec. 31, 2017
General Partner
General Partner	4. General Partner At December 31, 2017, 2016 and 2015, and for the years then ended, the General Partner did not maintain a capital balance in the Fund; however, the beneficiary of the majority shareholder of the General Partner had the following investment in Class I Units: 2017 2016 2015 Units Owned 254.4114 254.4114 254.4114 Value of Units $ 260,358 $ 250,114 $ 250,383 The following fees are paid to the General Partner: ■ General Partner Management Fee – the Fund incurs a monthly fee on Class A, A2, A3, B and R Units equal to 1/12 th th ■ General Partner Performance Fee – the Fund incurs a monthly fee on Class I Units equal to 7.5% of any Net New Trading Profits of the Class I Units calculated monthly. In determining Net New Trading Profits, any trading losses incurred by the Class I Units in prior periods is carried forward, so that the incentive fee is assessed only if and to the extent the profits generated by the Class I units exceed any losses from prior periods. The general partner performance fee is payable quarterly in arrears. ■ Selling Agent Fees – the Class A Units incur a monthly fee equal to 1/12 th ■ Broker Dealer Servicing Fees – the Class B Units incur a monthly fee equal to 1/12 th ■ Administrative Fee – the Fund incurs a monthly fee equal to 1/12 th Pursuant to the terms of the Partnership Agreement, each year the General Partner receives from the Fund 1% of any net income earned by the Fund. Conversely, the General Partner pays to the Fund 1% of any net loss incurred by the Fund. Such amounts are reflected as General Partner 1% allocation receivable or payable in the consolidated statements of financial condition and as General Partner 1% allocation in the consolidated statements of operations. The following fees were paid to the General Partner during the period in which it consolidated SMFSF: ■ Management fee – SMFSF incurs a monthly fee equal to 1/12 th th ■ Distribution (12b-1) fee – SMFSF incurs a monthly 12b-1 fee of 1/12 th th ■ Operating Services Fee – SMFSF incurs a monthly fee equal to 1/12 th th

Trading Advisors and Cash Manag

Trading Advisors and Cash Managers	12 Months Ended
Trading Advisors and Cash Managers	Dec. 31, 2017
Trading Advisor And Cash Managers
Trading Advisors and Cash Managers	5. Trading Advisors and Cash Managers The Fund has advisory agreements with various trading advisors, pursuant to which the Fund incurs a monthly advisor management fee that ranges from 0% to 3% per annum of allocated net assets (as defined in each respective advisory agreement), paid monthly or quarterly in arrears. Additionally, the Fund incurs advisor incentive fees, payable quarterly in arrears, ranging from 0% to 30% of net new trading profits (as defined in each respective advisory agreement). J.P. Morgan Investment Management, Inc. and Principal Global Investors, LLC (collectively, the “Cash Managers”) provide cash management services to the Fund. The Fund incurs monthly fees, payable in arrears to the Cash Managers, equal to approximately 1/12 th

Deposits with Brokers

Deposits with Brokers	12 Months Ended
Deposits with Brokers	Dec. 31, 2017
Deposits With Brokers
Deposits with Brokers	6. Deposits with Brokers To meet margin requirements, the Fund deposits funds with brokers, subject to CFTC regulations and various exchange and broker requirements. The Fund earns interest income on its assets deposited with brokers. At December 31, 2017 and 2016, the Fund had margin deposit requirements of $71,513,422 and $103,248,865, respectively.

Subscriptions, Distributions an

Subscriptions, Distributions and Redemptions	12 Months Ended
Subscriptions, Distributions and Redemptions	Dec. 31, 2017
Partners' Capital Notes [Abstract]
Subscriptions, Distributions and Redemptions	7. Subscriptions, Distributions and Redemptions Investments in the Fund are made by subscription agreement and must be received within five business days of the end of the month, subject to acceptance by the General Partner. The minimum investment is $10,000 for Class A, A2, A3, B and R units and $2,000,000 for Class I units. Units are sold at the respective net asset value per unit for Class A, A2, A3, B, I or R interests as of the close of business on the last day of the month in which the subscription is accepted. Investors whose subscriptions are accepted are admitted as limited partners as of the beginning of the month following the month in which their subscriptions were accepted. At December 31, 2017 and 2016, the Fund received advance subscriptions of $287,000 and $2,687,191, respectively, which were recognized as subscriptions to the Fund subsequent to period-end. The Fund is not required to make distributions, but may do so at the sole discretion of the General Partner. A limited partner may request and receive redemption of Class A, A2, A3, B, I or R Units owned at the end of any month, subject to five business days’ prior written notice to the General Partner, and in certain circumstances, restrictions in the Partnership Agreement. The General Partner may require a limited partner to redeem from the Fund if the General Partner deems the redemption (a) necessary to prevent or correct the occurrence of a non-exempt prohibited transaction under the Employee Retirement Income Security Act of 1974, as amended, or the Internal Revenue Code of 1986, as amended, (b) beneficial to the Fund, or (c) necessary to comply with applicable government or other self-regulatory organization regulations.

Trading Activities and Related

Trading Activities and Related Risks	12 Months Ended
Trading Activities and Related Risks	Dec. 31, 2017
Trading Activities And Related Risks
Trading Activities and Related Risks	8. Trading Activities and Related Risks The Fund engages in the speculative trading of futures, options and over-the-counter contracts, including forward currency contracts traded in the U.S. and internationally. Trading in derivatives exposes the Fund to both market risk, the risk arising from a change in the fair value of a contract, and credit risk, the risk of failure by another party to perform according to the terms of a contract. Purchase and sale of futures contracts requires margin deposits with the futures brokers. Additional deposits may be necessary for any loss of contract value. The Commodity Exchange Act (“CEAct”) requires a broker to segregate all customer transactions and assets from such broker’s proprietary activities. A customer’s cash and other property (for example, U.S. Treasury securities) deposited with a broker are considered commingled with all other customer funds subject to the broker’s segregation requirements. In the event of a broker’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 (or none of) the total cash and other property deposited. The Fund uses with SG Americas Securities, LLC, JP Morgan Securities, LLC, and Deutsche Bank Securities, Inc. as its futures brokers. The Fund uses Société Générale International Limited, Deutsche Bank AG, and UBS AG as its forward currency counterparties. For futures contracts, risks arise from changes in the fair value of the contracts. Theoretically, the Fund is exposed to a market risk equal to the value of futures and forward currency contracts purchased, and unlimited liability on such contracts sold short. In addition to market risk, upon entering into commodity interest contracts there is a credit risk that a counterparty will not be able to meet its obligations to the Fund. The counterparty for futures and options on futures contracts traded in the U.S. and on most non-U.S. futures exchanges is the clearinghouse associated with such exchanges. 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 non-U.S. exchanges, it is normally backed by a consortium of banks or other financial institutions. In the case of forward currency contracts, which are traded on the interbank or other institutional market rather than on exchanges, the counterparty is generally a single bank or other financial institution, rather than a clearinghouse backed by a group of financial institutions; thus there likely will be greater counterparty credit risk. While the Fund trades only with those counterparties that it believes to be creditworthy, there can be no assurance that any clearing member, clearinghouse or other counterparty will be able to meet its obligations to the Fund. The Fund trades forward currency contracts in unregulated markets between principals and assumes the risk of loss from counterparty non-performance. Accordingly, the risks associated with forward currency contracts are generally greater than those associated with exchange-traded contracts because of the greater risk of counterparty default. Additionally, the trading of forward currency contracts typically involves delayed cash settlement. The Fund has a portion of its assets on deposit with interbank market makers and other financial institutions in connection with its trading of forward currency contracts and its cash management activities. In the event of an interbank market maker’s or financial institution’s insolvency, recovery of Fund assets on deposit may be limited to account insurance or other protection afforded such deposits. Entering into swap agreements involves, to varying degrees, credit, market, and counterparty risk in excess of the amounts recognized on the consolidated statement of financial condition. The Cash Managers manage the Fund’s cash and excess margin through investments in fixed income instruments, pursuant to investment parameters established by the General Partner. Fluctuations in prevailing interest rates could cause mark-to-market losses on the Fund’s fixed income instruments. Through its investments in debt securities and certificates of deposit, the Fund has exposure to U.S. and foreign enterprises. The following table presents the exposure at December 31, 2017. Country or Region U.S. Treasury Securities Commercial Paper Corporate Notes Asset Backed Securities Total % of Partners’ Capital (Net Asset Value) United States $ 58,329,191 $ 30,479,713 $ 94,039,929 $ 11,574,641 $ 194,423,474 54.38 % Netherlands — — 18,032,725 — 18,032,725 5.04 % Canada — — 8,218,336 — 8,218,336 2.30 % France — — 5,485,426 — 5,485,426 1.53 % Australia — 1,597,729 3,523,463 — 5,121,192 1.43 % Luxembourg — 2,997,265 — — 2,997,265 0.84 % Singapore — 1,599,760 — — 1,599,760 0.45 % Germany — 1,499,838 — — 1,499,838 0.42 % Total $ 58,329,191 $ 38,174,305 $ 129,299,879 $ 11,574,641 $ 237,378,016 66.39 % The following table presents the exposure at December 31, 2016. Country or Region U.S. Treasury Securities Commercial Paper Corporate Notes Asset Backed Securities Certificates of Deposit Total % of Partners’ Capital (Net Asset Value) United States $ 91,313,694 $ 52,068,922 $ 186,349,217 $ 36,022,365 $ 35,576,495 $ 401,330,693 71.25 % Australia — 2,497,272 7,501,543 — — 9,998,815 1.78 % Netherlands — — 15,052,634 — — 15,052,634 2.67 % Luxembourg — 2,099,839 2,915,384 — — 5,015,223 0.89 % Canada — — 6,864,143 — — 6,864,143 1.22 % France — 3,470,593 7,471,652 — — 10,942,245 1.94 % Great Britain — 1,999,682 — — — 1,999,682 0.36 % Sweden — 399,256 2,974,538 — — 3,373,794 0.60 % Singapore — 1,499,891 — — — 1,499,891 0.27 % Germany — 2,499,715 — — — 2,499,715 0.44 % Hong Kong — 1,214,277 — — — 1,214,277 0.22 % Cayman Islands — — 225,713 — — 225,713 0.04 % Total $ 91,313,694 $ 67,749,447 $ 229,354,824 $ 36,022,365 $ 35,576,495 $ 460,016,825 81.68 %

Indemnifications

Indemnifications	12 Months Ended
Indemnifications	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Indemnifications	9. Indemnifications In the normal course of business, the Fund may enter into contracts and agreements that contain a variety of representations and warranties, and which provide general indemnifications. The Fund’s maximum exposure under these arrangements cannot be estimated. However, the Fund believes that it is unlikely it will have to make material payments under these arrangements and has not recorded any contingent liability in the consolidated financial statements for such indemnifications.

Financial Highlights

Financial Highlights	12 Months Ended
Financial Highlights	Dec. 31, 2017
Financial Highlights
Financial Highlights	10. Financial Highlights The following information presents per unit operating performance data and other ratios for the years ended December 31, 2017, 2016 and 2015, assuming the unit was outstanding throughout the entire year: 2017 Class A Class B Class I Class R Per Unit Operating Performance Net asset value per unit, beginning of period $ 4,096.03 $ 6,080.47 $ 983.11 $ 1,000.00 Net realized and change in unrealized gain (loss) on investments (1) 274.94 415.13 67.05 62.87 Net investment income (loss) (1) (224.06 ) (228.67 ) (26.79 ) (24.82 ) Total income (loss) from operations 50.88 186.46 40.26 38.05 Net asset value per unit, end of period $ 4,146.91 $ 6,266.93 $ 1023.37 $ 1,038.05 Total return 1.24 % 3.07 % 4.10 % 3.80 % Other Financial Ratios Ratios to average net asset value Expenses prior to General Partner 1% allocation (2) 6.86 % 5.06 % 3.97 % 4.61 % General Partner 1% allocation 0.00 % 0.01 % 0.04 % 0.03 % Net total expenses 6.86 % 5.07 % 4.01 % 4.64 % Net investment income (loss) (2) (3) (5.61 )% (3.81 )% (2.72 )% (3.31 )% 2016 Class A Class B Class I Class R Per Unit Operating Performance Net asset value per unit, beginning of period $ 4,212.26 $ 6,142.34 $ 984.17 $ — Net realized and change in unrealized gain (loss) on investments (1) 130.21 185.48 28.96 — Net investment income (loss) (1) (246.44 ) (247.35 ) (30.02 ) — Total income (loss) from operations (116.23 ) (61.87 ) (1.06 ) — Net asset value per unit, end of period $ 4,096.03 $ 6,080.47 $ 983.11 $ — Total return (2.76 )% (1.01 )% (0.11 )% — Other Financial Ratios Ratios to average net asset value Expenses prior to General Partner 1% allocation (2) 6.56 % 4.73 % 3.77 % — General Partner 1% allocation (0.02 )% 0.00 % 0.00 % — Net total expenses 6.54 % 4.73 % 3.77 % — Net investment income (loss) (2) (3) (5.72 )% (3.89 )% (2.94 )% — 2015 Class A Class B Class I Class R Per Unit Operating Performance Net asset value per unit, beginning of period $ 4,414.30 $ 6,323.56 $ 1,004.98 $ — Net realized and change in unrealized gain (loss) on investments (1) 75.45 113.27 15.59 — Net investment income (loss) (1) (277.49 ) (294.49 ) (36.40 ) — Total income (loss) from operations (202.04 ) (181.22 ) (20.81 ) — Net asset value per unit, end of period $ 4,212.26 $ 6,142.34 $ 984.17 $ — Total return (4.58 )% (2.87 )% (2.07 )% — Other Financial Ratios Ratios to average net asset value Expenses prior to General Partner 1% allocation (2) 6.86 % 5.14 % 4.12 % — General Partner 1% allocation (0.05 )% (0.03 )% (0.03 )% — Net total expenses 6.81 % 5.11 % 4.09 % — Net investment income (loss) (2) (3) (6.38 )% (4.67 )% (3.63 )% — † Class R Units were introduced in April 2017. Total returns are calculated based on the change in value of a Class A, Class B, Class I or Class R Unit during the year. An individual partner’s total returns and ratios may vary from the above total returns and ratios based on the timing of subscriptions and redemptions. (1) (2) (3)

Subsequent Events

Subsequent Events	12 Months Ended
Subsequent Events	Dec. 31, 2017
Subsequent Events [Abstract]
Subsequent Events	11. Subsequent Events Subsequent to year end, there were $2,494,000 of contributions and $12,908,376 of redemptions from the Fund.

Deconsolidation of Steben Manag

Deconsolidation of Steben Managed Futures Strategy Fund	12 Months Ended
Deconsolidation of Steben Managed Futures Strategy Fund	Dec. 31, 2017
Noncontrolling Interest [Abstract]
Deconsolidation of Steben Managed Futures Strategy Fund	12. Deconsolidation of Steben Managed Futures Strategy Fund As of August 31, 2017, the Fund no longer has effective control of the financial and operating policies of SMFSF as it no longer owns a majority of the outstanding shares of that mutual fund. Accordingly, the Fund deconsolidated the related assets, liabilities and non-controlling interest in SMFSF on that date. The Fund did not receive any consideration in the deconsolidation of SMFSF and there was no gain or loss upon deconsolidation. The assets and liabilities which the Fund deconsolidated were: Assets August 31, 2017 Equity in broker trading accounts Cash $ 17,813,620 Net unrealized gain (loss) on open futures contracts 1,206,044 Net unrealized gain (loss) on open forward currency contracts 74,520 Total equity in broker trading accounts 19,094,184 Cash and cash equivalents 1,690,646 Investments in securities, at fair value 53,611,230 Subscription receivable 543,627 Liabilities Trading advisor management fees 112,367 Distribution (12b-1) fees payable 3,331 Operating services fee payable 15,410 Redemptions payable 35,760 Net assets deconsolidated 74,772,819 Less: non-controlling interest (38,169,976 ) Fair value of interest retained $ 36,602,843 The fair value of the Fund’s investment in SMFSF is based on the unadjusted quoted market price per share. At December 31, 2017, the Fund’s investment in SMFSF was approximately $34 million. On the statement of cash flows, the balance of cash and cash equivalents deconsolidated on August 31, 2017 was $19,504,266. On the statement of operations, the income and expenses incurred by SMFSF during the period of consolidation are recognized as income and expenses of the Fund pursuant to the principles of consolidation. Income and expenses incurred by SMFSF following deconsolidation on August 31, 2017 are not directly recognized by the Fund, but they do impact the net asset value of SMFSF and consequently the fair value of the Fund’s investment in SMFSF. Realized gains (losses) and changes in unrealized gains (losses) on the Fund’s investment in SMFSF following deconsolidation on August 31, 2017 are recognized on the Fund’s statement of operations.

Organization and Summary of S27

Organization and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Significant Accounting Policies	Accounting Principles The Fund’s consolidated financial statements are prepared in conformity with U.S. generally accepted accounting principles (“GAAP”). Under GAAP, the Fund is an investment company and follows accounting and reporting guidance under the Financial Accounting Standards Board (FASB) Accounting Standard Codification (ASC) Topic 946, Financial Services – Investment Companies
Consolidation	Consolidation Through August 31, 2017, the accompanying consolidated financial statements included the accounts of the Fund and SMFSF, for which the Fund was the majority shareholder. On August 31, 2017, the Fund ceased being the majority shareholder of SMFSF and no longer consolidates that entity into its financial statements. Intercompany accounts and transactions have been eliminated in consolidation.
Use of Estimates	Use of Estimates Preparing consolidated financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and accompanying notes. Actual results could differ from those estimates.
Revenue Recognition	Revenue Recognition Futures, forward currency contracts, investments in securities, certificates of deposit, and the exchange membership are recorded on a trade date basis, and gains or losses are realized when contracts/positions are liquidated. Realized gains and losses on investments in securities and certificates of deposit are determined on a specific identification basis and are included in net realized and change in unrealized gain (loss) in the consolidated statements of operations. Unrealized gains and losses on open contracts (the difference between contract trade price and fair value) are reported in the consolidated statements of financial condition as net unrealized gain or loss, as there exists a right of offset of any unrealized gains or losses. The difference between cost and the fair value of open investments in securities and certificates of deposit is reflected as unrealized gain or loss on investments in securities and certificates of deposit. Any change in net unrealized gain or loss from the preceding period is reported in the consolidated statements of operations. Interest income earned on investments in securities, certificates of deposit and other cash and cash equivalent balances is recorded on an accrual basis. Market discounts and premiums on fixed-income securities are amortized daily over the expected life of the security using the effective yield method.
Fair Value of Financial Instruments	Fair Value of Financial Instruments Financial instruments are recorded at fair value, the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. Assets and liabilities recorded at fair value are classified within a fair value hierarchy based upon the level of judgment associated with the inputs used to measure their value. This fair value hierarchy gives the highest priority to quoted prices in active markets for identical assets or liabilities (Level 1) and the lowest priority to unobservable inputs (Level 3). The three levels of the fair value hierarchy are described below: Level 1 – Fair value is based on unadjusted quoted prices for identical instruments in active markets. Financial instruments utilizing Level 1 inputs include futures contracts, U.S. Treasury securities and mutual funds. Level 2 – Fair value is based on quoted prices for similar instruments in active markets and inputs other than quoted prices that are observable for the financial instrument, such as interest rates and yield curves that are observable at commonly quoted intervals using a market approach. Financial instruments utilizing Level 2 inputs include forward currency contracts, swaps, commercial paper, corporate notes, certificates of deposit, asset backed securities and the exchange membership. Level 3 – Fair value is based on valuation techniques in which one or more significant inputs are unobservable. The Fund has no financial instruments utilizing Level 3 inputs. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, an instrument’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The Fund’s assessment of the significance of a particular input to the fair value measurement in its entirety requires judgment, and considers factors specific to the investment. The Fund assesses the classification of the instruments at each measurement date, and any transfers between levels are recognized on the actual date of the event or change in circumstances that caused the transfer in accordance with the Fund’s accounting policy regarding the recognition of transfers between levels of the fair value hierarchy. For the years ended December 31, 2017 and 2016, there were no such transfers between levels. A description of the valuation techniques applied to the Fund’s major categories of assets and liabilities measured at fair value on a recurring basis follows. U.S. Treasury securities are recorded at fair value based on bid and ask quotes for identical instruments. Commercial paper, certificates of deposit, corporate notes, asset backed securities and the exchange membership are recorded at fair value based on bid and ask quotes for similar, but not identical, instruments. Accordingly, U.S. Treasury securities are classified within Level 1, and commercial paper, certificates of deposit, corporate notes, asset backed securities and exchange memberships are classified within Level 2. The investment in SMFSF (a mutual fund), a money market fund and futures contracts are valued using quoted market prices for identical assets in active markets, and are classified within Level 1. The money market fund is included in cash and cash equivalents in the consolidated statements of financial condition. The fair values of forward currency contracts are based upon third-party quoted dealer values on the interbank market and are classified within Level 2.
Cash and Cash Equivalents	Cash and Cash Equivalents Cash and cash equivalents may include cash, funds held in money market accounts and short-term investments with maturities of three months or less at the date of acquisition and that are not held for sale in the normal course of business. The Fund maintains deposits with financial institutions in amounts that are in excess of federally insured limits; however, the Fund does not believe it is exposed to any significant credit risk.
Exchange Membership	Exchange Membership During 2017, the Fund purchased a membership interest in the Chicago Mercantile Exchange (CME). By purchasing the membership, the Fund will incur reduced fees for transactions on the CME. The membership is accounted at its fair value and changes in fair value are reported in net change in unrealized gain (loss) in exchange membership on the statement of operations.
Brokerage Commissions and Trading Expenses	Brokerage Commissions and Trading Expenses Brokerage commissions and trading expenses include brokerage and other trading fees, and are charged to expense when contracts are opened and closed.
Redemptions Payable	Redemptions Payable Redemptions payable represent redemptions that meet the requirements of the Fund and have been approved by the General Partner prior to year-end. These redemptions have been recorded using the year end net asset value per Unit.
Income Taxes	Income Taxes The Fund prepares calendar year U.S. and applicable state and local tax returns. The Fund is not subject to federal income taxes as each partner is individually liable for his or her allocable share of the Fund’s income, expenses and trading gains or losses. The Fund evaluates the tax positions taken or expected to be taken in the course of preparing the Fund’s tax returns to determine whether the tax positions are more-likely-than-not to be sustained when examined by the applicable tax authority. Tax positions not deemed to meet the more-likely-than-not threshold would be recorded as a tax benefit or expense and asset or liability in the current year. Management has determined there are no material uncertain income tax positions through December 31, 2017. With few exceptions, the Fund is no longer subject to U.S. federal, or state and local income tax examinations by tax authorities for years before 2014.
Foreign Currency Transactions	Foreign Currency Transactions The Fund has certain investments denominated in foreign currencies. The purchase and sale of investments, and income and expenses are translated at the rates of exchange prevailing on the respective dates of such transactions. The Fund does not isolate that portion of the results of operations resulting from changes in foreign exchange rates on investments from the fluctuations arising from changes in market prices of investments held. Such fluctuations are included with the net realized and change in unrealized gain or loss on such investments in the consolidated statements of operations.
Swap Agreement	Swap Agreement Through its investment in SMFSF, the Fund had exposure to a total return swap with Deutsche Bank AG. This two-party contract was entered in to exchange, or swap, the returns realized on a basket of CTA programs. The swap agreement was terminated in March 2016.
Reclassification	Reclassification Certain amounts in the 2016 and 2015 consolidated financial statements may have been reclassified to conform to the 2017 presentation without affecting previously reported partners’ capital (net asset value) or net income (loss).
New Accounting Pronouncements	New Accounting Pronouncements Revenue from Contracts with Customers In May 2014, the FASB issued revenue recognition guidance, which will replace most pre-existing revenue recognition guidance in current U.S. generally accepted accounting principles. The guidance provides a framework for addressing revenue recognition and, for the Fund, is effective January 1, 2018. The Fund evaluated the impact of this new guidance and has determined that its adoption will not have a material effect on the financial statements. Restricted Cash In November 2016, the FASB issued guidance regarding the presentation of changes in restricted cash and restricted cash equivalents within the statement of cash flows. The Fund will adopt the guidance on January 1, 2018, and does not expect its adoption to have a material effect on the financial statements.

Fair Value Disclosures (Tables)

Fair Value Disclosures (Tables)	12 Months Ended
Fair Value Disclosures (Tables)	Dec. 31, 2017
Fair Value Disclosures [Abstract]
Schedule of assets and liabilities measured on recurring basis	The Fund’s assets and liabilities, measured at fair value on a recurring basis, are summarized in the following tables by the type of inputs applicable to the fair value measurements: At December 31, 2017 Level 1 Level 2 Total Equity in broker trading accounts: Net unrealized gain (loss) on open futures contracts* $ 8,930,417 $ — $ 8,930,417 Net unrealized gain (loss) on open forward currency contracts* — 1,920,516 1,902,516 Cash and cash equivalents: Money market fund 42,775,036 — 42,775,036 Investment in SMFSF 34,101,936 — 34,101,936 Investments in securities: U.S. Treasury securities* 58,329,191 — 58,329,191 Asset backed securities* — 11,574,641 11,574,641 Commercial paper* — 38,174,305 38,174,305 Corporate notes* — 129,299,879 129,299,879 Exchange membership — 232,000 232,000 Total $ 144,136,580 $ 181,183,341 $ 325,319,921 See the condensed schedule of investments for further description. At December 31, 2016 Level 1 Level 2 Total Equity in broker trading accounts: Net unrealized gain (loss) on open futures contracts $ 8,921,229 $ — $ 8,921,229 Net unrealized gain (loss) on open forward currency contracts* — 830,153 830,153 Cash and cash equivalents: Money market fund 24,246,700 — 24,246,700 Investments in securities: U.S. Treasury securities* 91,313,694 — 91,313,694 Asset backed securities* — 36,022,365 36,022,365 Commercial paper* — 67,749,447 67,749,447 Corporate notes* — 229,354,824 229,354,824 Certificates of deposit* — 35,576,495 35,576,495 Total $ 124,481,623 $ 369,533,284 $ 494,014,907 *See the consolidated condensed schedule of investments for further description.

Derivative Instruments Disclo29

Derivative Instruments Disclosures (Tables)	12 Months Ended
Derivative Instruments Disclosures (Tables)	Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of derivative contracts impact on the consolidated statements of financial position	At December 31, 2017 and 2016, the Fund’s derivative contracts had the following impact on the consolidated statements of financial condition: December 31, 2017 Derivative Assets and Liabilities, at fair value Consolidated Statements of Financial Condition Location Gross Gross Amounts Offset in the Net Amount of Equity in broker trading accounts: Net unrealized gain (loss) on open futures contracts Agricultural commodities $ 1,610,106 $ (644,958 ) $ 965,148 Currencies 1,970,468 (1,270,292 ) 700,176 Energy 5,254,612 (1,328,218 ) 3,926,394 Equity indices 4,652,670 (2,479,884 ) 2,172,786 Interest rate instruments 2,293,476 (3,640,881 ) (1,347,405 ) Metals 13,922,808 (11,443,945 ) 2,478,863 Single stock futures 234,102 (199,647 ) 34,455 Net unrealized gain (loss) on open futures contracts $ 29,938,242 $ (21,007,825 ) $ 8,930,417 Net unrealized gain (loss) on open forward currency contracts $ 5,193,499 $ (3,290,983 ) $ 1,902,516 December 31, 2016 Derivative Assets and Liabilities, at fair value Consolidated Statements of Financial Condition Location Gross Gross Amounts Net Amount of Equity in broker trading accounts: Net unrealized gain (loss) on open futures contracts Agricultural commodities $ 2,294,353 $ (1,604,192 ) $ 690,161 Currencies 2,761,758 (1,623,067 ) 1,138,691 Energy 2,460,760 (213,722 ) 2,247,038 Equity indices 6,420,118 (3,196,175 ) 3,223,943 Interest rate instruments 4,870,096 (2,758,821 ) 2,111,275 Metals 14,236,047 (14,553,816 ) (317,769 ) Single stock futures 145,242 (317,352 ) (172,110 ) Net unrealized gain (loss) on open futures contracts $ 33,188,374 $ (24,267,145 ) $ 8,921,229 Net unrealized gain (loss) on open forward currency contracts $ 5,182,502 $ (4,352,349 ) $ 830,153
Schedule of financial assets, derivative assets, and cash collateral held by counterparties	The Fund’s financial assets, derivative assets, and cash collateral held by counterparties at December 31, 2017 were: Gross Amounts Not Offset in the Counterparty Net Amount of Assets in the Statements of Financial Cash Collateral Net Amount Deutsche Bank AG $ 332,031 $ — $ — $ 332,031 Deutsche Bank Securities, Inc. 838,938 — — 838,938 JP Morgan Securities, LLC 1,270,509 — — 1,270,509 SG Americas Securities, LLC 6,820,970 — — 6,820,970 Société Générale International Limited 1,122,595 — — 1,122,595 UBS AG 447,890 — — 447,890 Total $ 10,832,933 $ — $ — $ 10,832,933 The Fund’s financial assets, derivative assets, and cash collateral held by counterparties at December 31, 2016 were: Gross Amounts Not Offset in the Statements of Financial Condition Counterparty Net Amount of Statements of Financial Condition Financial Cash Collateral Net Amount Deutsche Bank AG $ 21,799 $ — $ — $ 21,799 Deutsche Bank Securities, Inc. 24,787 — — 24,787 JP Morgan Securities, LLC 1,493,645 — — 1,493,645 SG Americas Securities, LLC 7,402,797 — — 7,402,797 Société Générale International Limited 165,990 — — 165,990 UBS AG 642,364 — — 642,364 Total $ 9,751,382 $ — $ — $ 9,751,382
Schedule of future and forward contracts impact on the consolidated statements of operations	For the years ended December 31, 2017, 2016 and 2015, the Fund’s futures and forwards contracts had the following impact on the consolidated statements of operations: 2017 2016 Types of Exposure Net realized Net change Net realized Net change Futures contracts Agricultural commodities $ (6,968,291 ) $ 274,000 $ (4,535,068 ) $ (779,900 ) Currencies (7,944,502 ) 34,900 11,798,113 (960,570 ) Energy (16,322,348 ) 1,714,614 (17,711,372 ) (1,339,229 ) Equity indices 85,262,449 (792,640 ) 6,114,947 4,650,786 Interest rate instruments (21,099,792 ) (3,289,779 ) 32,280,416 6,307,243 Metals (5,438,472 ) 3,067,571 (11,266,353 ) (3,058,407 ) Single stock futures 2,546,268 206,565 848,998 (311,372 ) Total futures contracts 30,035,312 1,215,231 17,529,681 4,508,551 Forward currency contracts (7,815,159 ) 1,146,883 (436,996 ) 2,444,644 Swap contract — — 8,706,658 (3,440,896 ) Total futures, forward currency and swap contracts $ 22,220,153 $ 2,362,114 $ 25,799,343 $ 3,512,299 2015 Types of Exposure Net realized Net change Futures contracts Agricultural commodities $ (9,005,724 ) $ (480,153 ) Currencies (847,018 ) (1,910,235 ) Energy 45,065,516 (6,030,206 ) Equity indices (5,916,524 ) (5,606,594 ) Interest rate instruments 27,500,225 (17,693,919 ) Metals 4,126,059 2,975,459 Single stock futures (197,987 ) (266,099 ) Total futures contracts 60,724,547 (29,011,747 ) Forward currency contracts (8,884,366 ) (205,234 ) Swap contract — (4,630,918 ) Total futures, forward currency and swap contracts $ 51,840,181 $ (33,847,899 )

General Partner (Tables)

General Partner (Tables)	12 Months Ended
General Partner (Tables)	Dec. 31, 2017
General Partner
Schedule of investment of beneficiary of majority shareholder of General Partner	At December 31, 2017, 2016 and 2015, and for the years then ended, the General Partner did not maintain a capital balance in the Fund; however, the beneficiary of the majority shareholder of the General Partner had the following investment in Class I Units: 2017 2016 2015 Units Owned 254.4114 254.4114 254.4114 Value of Units $ 260,358 $ 250,114 $ 250,383

Trading Activities and Relate31

Trading Activities and Related Risks (Tables)	12 Months Ended
Trading Activities and Related Risks (Tables)	Dec. 31, 2017
Trading Activities And Related Risks
Schedule of exposure in investments	The following table presents the exposure at December 31, 2017. Country or Region U.S. Treasury Securities Commercial Paper Corporate Notes Asset Backed Securities Total % of Partners’ Capital (Net Asset Value) United States $ 58,329,191 $ 30,479,713 $ 94,039,929 $ 11,574,641 $ 194,423,474 54.38 % Netherlands — — 18,032,725 — 18,032,725 5.04 % Canada — — 8,218,336 — 8,218,336 2.30 % France — — 5,485,426 — 5,485,426 1.53 % Australia — 1,597,729 3,523,463 — 5,121,192 1.43 % Luxembourg — 2,997,265 — — 2,997,265 0.84 % Singapore — 1,599,760 — — 1,599,760 0.45 % Germany — 1,499,838 — — 1,499,838 0.42 % Total $ 58,329,191 $ 38,174,305 $ 129,299,879 $ 11,574,641 $ 237,378,016 66.39 % The following table presents the exposure at December 31, 2016. Country or Region U.S. Treasury Securities Commercial Paper Corporate Notes Asset Backed Securities Certificates of Deposit Total % of Partners’ Capital (Net Asset Value) United States $ 91,313,694 $ 52,068,922 $ 186,349,217 $ 36,022,365 $ 35,576,495 $ 401,330,693 71.25 % Australia — 2,497,272 7,501,543 — — 9,998,815 1.78 % Netherlands — — 15,052,634 — — 15,052,634 2.67 % Luxembourg — 2,099,839 2,915,384 — — 5,015,223 0.89 % Canada — — 6,864,143 — — 6,864,143 1.22 % France — 3,470,593 7,471,652 — — 10,942,245 1.94 % Great Britain — 1,999,682 — — — 1,999,682 0.36 % Sweden — 399,256 2,974,538 — — 3,373,794 0.60 % Singapore — 1,499,891 — — — 1,499,891 0.27 % Germany — 2,499,715 — — — 2,499,715 0.44 % Hong Kong — 1,214,277 — — — 1,214,277 0.22 % Cayman Islands — — 225,713 — — 225,713 0.04 % Total $ 91,313,694 $ 67,749,447 $ 229,354,824 $ 36,022,365 $ 35,576,495 $ 460,016,825 81.68 %

Financial Highlights (Tables)

Financial Highlights (Tables)	12 Months Ended
Financial Highlights (Tables)	Dec. 31, 2017
Financial Highlights
Schedule of per unit operating performance data and other financial ratios	The following information presents per unit operating performance data and other ratios for the years ended December 31, 2017, 2016 and 2015, assuming the unit was outstanding throughout the entire year: 2017 Class A Class B Class I Class R Per Unit Operating Performance Net asset value per unit, beginning of period $ 4,096.03 $ 6,080.47 $ 983.11 $ 1,000.00 Net realized and change in unrealized gain (loss) on investments (1) 274.94 415.13 67.05 62.87 Net investment income (loss) (1) (224.06 ) (228.67 ) (26.79 ) (24.82 ) Total income (loss) from operations 50.88 186.46 40.26 38.05 Net asset value per unit, end of period $ 4,146.91 $ 6,266.93 $ 1023.37 $ 1,038.05 Total return 1.24 % 3.07 % 4.10 % 3.80 % Other Financial Ratios Ratios to average net asset value Expenses prior to General Partner 1% allocation (2) 6.86 % 5.06 % 3.97 % 4.61 % General Partner 1% allocation 0.00 % 0.01 % 0.04 % 0.03 % Net total expenses 6.86 % 5.07 % 4.01 % 4.64 % Net investment income (loss) (2) (3) (5.61 )% (3.81 )% (2.72 )% (3.31 )% 2016 Class A Class B Class I Class R Per Unit Operating Performance Net asset value per unit, beginning of period $ 4,212.26 $ 6,142.34 $ 984.17 $ — Net realized and change in unrealized gain (loss) on investments (1) 130.21 185.48 28.96 — Net investment income (loss) (1) (246.44 ) (247.35 ) (30.02 ) — Total income (loss) from operations (116.23 ) (61.87 ) (1.06 ) — Net asset value per unit, end of period $ 4,096.03 $ 6,080.47 $ 983.11 $ — Total return (2.76 )% (1.01 )% (0.11 )% — Other Financial Ratios Ratios to average net asset value Expenses prior to General Partner 1% allocation (2) 6.56 % 4.73 % 3.77 % — General Partner 1% allocation (0.02 )% 0.00 % 0.00 % — Net total expenses 6.54 % 4.73 % 3.77 % — Net investment income (loss) (2) (3) (5.72 )% (3.89 )% (2.94 )% — 2015 Class A Class B Class I Class R Per Unit Operating Performance Net asset value per unit, beginning of period $ 4,414.30 $ 6,323.56 $ 1,004.98 $ — Net realized and change in unrealized gain (loss) on investments (1) 75.45 113.27 15.59 — Net investment income (loss) (1) (277.49 ) (294.49 ) (36.40 ) — Total income (loss) from operations (202.04 ) (181.22 ) (20.81 ) — Net asset value per unit, end of period $ 4,212.26 $ 6,142.34 $ 984.17 $ — Total return (4.58 )% (2.87 )% (2.07 )% — Other Financial Ratios Ratios to average net asset value Expenses prior to General Partner 1% allocation (2) 6.86 % 5.14 % 4.12 % — General Partner 1% allocation (0.05 )% (0.03 )% (0.03 )% — Net total expenses 6.81 % 5.11 % 4.09 % — Net investment income (loss) (2) (3) (6.38 )% (4.67 )% (3.63 )% — † Class R Units were introduced in April 2017. Total returns are calculated based on the change in value of a Class A, Class B, Class I or Class R Unit during the year. An individual partner’s total returns and ratios may vary from the above total returns and ratios based on the timing of subscriptions and redemptions. (1) (2) (3)

Organization and Summary of S33

Organization and Summary of Significant Accounting Policies (Details Narrative) - USD ($)	Apr. 02, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2014	Aug. 31, 2017
SMFSF [Member] \| Minimum [Member]
Ownership interest					50.00%
SMFSF [Member] \| Maximum [Member]
Ownership interest					50.00%
Class A [Member]
Percentage of selling agent fee		2.00%
Class A [Member] \| General Partner [Member]
Percentage of management fees, prior		1.50%
Class A 2 [Member]
Percentage of sales commission		3.00%
Percentage of offering price		0.60%
Class A 2 [Member] \| General Partner [Member]
Percentage of management fees, prior		1.50%
Class A 3 [Member]
Percentage of sales commission		2.00%
Percentage of offering price		0.75%
Class A 3 [Member] \| General Partner [Member]
Percentage of management fees, prior		1.50%
Class B [Member]
Percentage of broker dealer servicing fee		0.20%
Class B [Member] \| General Partner [Member]
Percentage of management fees, prior		1.50%
Class I [Member]
Total investment amount				$ 58,500,000
Total redemption amount		$ 19,000,000	$ 6,000,000
Class I [Member] \| General Partner [Member]
Percentage of management fees, current		0.75%
Percentage of management fees, prior		0.75%
Percentage of performance fee		7.50%
Class R [Member]
Capital unit conversion	$ 14,000,000
Class R [Member] \| General Partner [Member]
Percentage of management fees, prior		1.50%

Fair Value Disclosures (Details

Fair Value Disclosures (Details) - USD ($)		Dec. 31, 2017	Dec. 31, 2016
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts		$ 8,930,417	$ 8,921,229
Net unrealized gain (loss) on open forward currency contracts		1,902,516	830,153
Recurring [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	[1]	8,930,417	8,921,229
Net unrealized gain (loss) on open forward currency contracts	[1]	1,902,516	830,153
Cash and cash equivalents:
Money market fund		42,775,036	24,246,700
Total		325,319,921	494,014,907
Recurring [Member] \| U.S. Treasury Securities [Member]
Cash and cash equivalents:
Total	[1]	58,329,191	91,313,694
Recurring [Member] \| U.S. Asset-backed Securities [Member]
Cash and cash equivalents:
Total	[1]	11,574,641	36,022,365
Recurring [Member] \| Commercial Paper [Member]
Cash and cash equivalents:
Total	[1]	38,174,305	67,749,447
Recurring [Member] \| Corporate Notes [Member]
Cash and cash equivalents:
Total	[1]	129,299,879	229,354,824
Recurring [Member] \| Certificates of Deposit [Member]
Cash and cash equivalents:
Total	[1]		35,576,495
Recurring [Member] \| Exchange Membership [Member]
Cash and cash equivalents:
Total		232,000
Recurring [Member] \| Investment In SMFSF [Member] \| Steben Managed Futures Strategy Fund [Member]
Cash and cash equivalents:
Total		34,101,936
Recurring [Member] \| Level 1 [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	[1]	8,930,417	8,921,229
Cash and cash equivalents:
Money market fund		42,775,036	24,246,700
Total		144,136,580	124,481,623
Recurring [Member] \| Level 1 [Member] \| Steben Managed Futures Strategy Fund [Member]
Cash and cash equivalents:
Total		34,101,936
Recurring [Member] \| Level 1 [Member] \| U.S. Treasury Securities [Member]
Cash and cash equivalents:
Total	[1]	58,329,191	91,313,694
Recurring [Member] \| Level 2 [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open forward currency contracts	[1]	1,920,516	830,153
Cash and cash equivalents:
Total		181,183,341	369,533,284
Recurring [Member] \| Level 2 [Member] \| U.S. Asset-backed Securities [Member]
Cash and cash equivalents:
Total	[1]	11,574,641	36,022,365
Recurring [Member] \| Level 2 [Member] \| Commercial Paper [Member]
Cash and cash equivalents:
Total	[1]	38,174,305	67,749,447
Recurring [Member] \| Level 2 [Member] \| Corporate Notes [Member]
Cash and cash equivalents:
Total	[1]	129,299,879	229,354,824
Recurring [Member] \| Level 2 [Member] \| Certificates of Deposit [Member]
Cash and cash equivalents:
Total	[1]		$ 35,576,495
Recurring [Member] \| Level 2 [Member] \| Exchange Membership [Member]
Cash and cash equivalents:
Total		$ 232,000

[1]	See the consolidated condensed schedule of investments for further description.

Derivative Instruments Disclo35

Derivative Instruments Disclosures (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	$ 8,930,417	$ 8,921,229
Net unrealized gain (loss) on open forward currency contracts	1,902,516	830,153
Not Designated as Hedging Instrument [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	8,930,417	8,921,229
Net unrealized gain (loss) on open forward currency contracts	1,902,516	830,153
Not Designated as Hedging Instrument [Member] \| Liabilities [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	(21,007,825)	(24,267,145)
Net unrealized gain (loss) on open forward currency contracts	(3,290,983)	(4,352,349)
Not Designated as Hedging Instrument [Member] \| Agricultural Commodities [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	965,148	690,161
Not Designated as Hedging Instrument [Member] \| Agricultural Commodities [Member] \| Liabilities [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	(644,958)	(1,604,192)
Not Designated as Hedging Instrument [Member] \| Currencies [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	700,176	1,138,691
Not Designated as Hedging Instrument [Member] \| Currencies [Member] \| Liabilities [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	(1,270,292)	(1,623,067)
Not Designated as Hedging Instrument [Member] \| Energy [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	3,926,394	2,247,038
Not Designated as Hedging Instrument [Member] \| Energy [Member] \| Liabilities [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	(1,328,218)	(213,722)
Not Designated as Hedging Instrument [Member] \| Equity Indices [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	2,172,786	3,223,943
Not Designated as Hedging Instrument [Member] \| Equity Indices [Member] \| Liabilities [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	(2,479,884)	(3,196,175)
Not Designated as Hedging Instrument [Member] \| Interest Rate Instruments [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	(1,347,405)	2,111,275
Not Designated as Hedging Instrument [Member] \| Interest Rate Instruments [Member] \| Liabilities [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	(3,640,881)	(2,758,821)
Not Designated as Hedging Instrument [Member] \| Metals [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	2,478,863	(317,769)
Not Designated as Hedging Instrument [Member] \| Metals [Member] \| Liabilities [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	(11,443,945)	(14,553,816)
Not Designated as Hedging Instrument [Member] \| Single Stock Futures [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	34,455	(172,110)
Not Designated as Hedging Instrument [Member] \| Single Stock Futures [Member] \| Liabilities [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	(199,647)	(317,352)
Not Designated as Hedging Instrument [Member] \| Assets [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	29,938,242	33,188,374
Net unrealized gain (loss) on open forward currency contracts	5,193,499	5,182,502
Not Designated as Hedging Instrument [Member] \| Assets [Member] \| Agricultural Commodities [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	1,610,106	2,294,353
Not Designated as Hedging Instrument [Member] \| Assets [Member] \| Currencies [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	1,970,468	2,761,758
Not Designated as Hedging Instrument [Member] \| Assets [Member] \| Energy [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	5,254,612	2,460,760
Not Designated as Hedging Instrument [Member] \| Assets [Member] \| Equity Indices [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	4,652,670	6,420,118
Not Designated as Hedging Instrument [Member] \| Assets [Member] \| Interest Rate Instruments [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	2,293,476	4,870,096
Not Designated as Hedging Instrument [Member] \| Assets [Member] \| Metals [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	13,922,808	14,236,047
Not Designated as Hedging Instrument [Member] \| Assets [Member] \| Single Stock Futures [Member]
Equity in broker trading accounts:
Net unrealized gain (loss) on open futures contracts	$ 234,102	$ 145,242

Derivative Instruments Disclo36

Derivative Instruments Disclosures (Details 1) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Derivative Instruments, Gain (Loss) [Line Items]
Net Amount of Assets in the Statement of Financial Condition	$ 10,832,933	$ 9,751,382
Net Amount	10,832,933	9,751,382
Deutsche Bank AG [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net Amount of Assets in the Statement of Financial Condition	332,031	21,799
Net Amount	332,031	21,799
Deutsche Bank Securities, Inc.[Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net Amount of Assets in the Statement of Financial Condition	838,938	24,787
Net Amount	838,938	24,787
J.P. Morgan Securities [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net Amount of Assets in the Statement of Financial Condition	1,270,509	1,493,645
Net Amount	1,270,509	1,493,645
SG Americas Securities, LLC [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net Amount of Assets in the Statement of Financial Condition	6,820,970	7,402,797
Net Amount	6,820,970	7,402,797
Societe Generale International Limited [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net Amount of Assets in the Statement of Financial Condition	1,122,595	165,990
Net Amount	1,122,595	165,990
UBS AG [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net Amount of Assets in the Statement of Financial Condition	447,890	642,364
Net Amount	$ 447,890	$ 642,364

Derivative Instruments Disclo37

Derivative Instruments Disclosures (Details 2) - Not Designated as Hedging Instrument [Member] - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Derivative Instruments, Gain (Loss) [Line Items]
Net realized gain (loss), Future contracts	$ 30,035,312	$ 17,529,681	$ 60,724,547
Net realized gain (loss), Forward contracts	(7,815,159)	(436,996)	(8,884,366)
Net change in unrealized gain (loss), Future contracts	1,215,231	4,508,551	(29,011,747)
Net change in unrealized gain (loss), forward contracts	1,146,883	2,444,644	(205,234)
Net realized gain (loss), Investment in swap contract		8,706,658
Net change in unrealized gain (loss), Investment in swap contract		(3,440,896)	(4,630,918)
Net realized gain (loss)	22,220,153	25,799,343	51,840,181
Net change in unrealized gain (loss)	2,362,114	3,512,299	(33,847,899)
Agricultural Commodities [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net realized gain (loss), Future contracts	(6,968,291)	(4,535,068)	(9,005,724)
Net change in unrealized gain (loss), Future contracts	274,000	(779,900)	(480,153)
Currencies [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net realized gain (loss), Future contracts	(7,944,502)	11,798,113	(847,018)
Net change in unrealized gain (loss), Future contracts	34,900	(960,570)	(1,910,235)
Energy [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net realized gain (loss), Future contracts	(16,322,348)	(17,711,372)	45,065,516
Net change in unrealized gain (loss), Future contracts	1,714,614	(1,339,229)	(6,030,206)
Equity Indices [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net realized gain (loss), Future contracts	85,262,449	6,114,947	(5,916,524)
Net change in unrealized gain (loss), Future contracts	(792,640)	4,650,786	(5,606,594)
Interest Rate Instruments [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net realized gain (loss), Future contracts	(21,099,792)	32,280,416	27,500,225
Net change in unrealized gain (loss), Future contracts	(3,289,779)	6,307,243	(17,693,919)
Metals [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net realized gain (loss), Future contracts	(5,438,472)	(11,266,353)	4,126,059
Net change in unrealized gain (loss), Future contracts	3,067,571	(3,058,407)	2,975,459
Single Stock Futures [Member]
Derivative Instruments, Gain (Loss) [Line Items]
Net realized gain (loss), Future contracts	2,546,268	848,998	(197,987)
Net change in unrealized gain (loss), Future contracts	$ 206,565	$ (311,372)	$ (266,099)

Derivative Instruments Disclo38

Derivative Instruments Disclosures (Details 3) - Not Designated as Hedging Instrument [Member] - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Net realized gain (loss), Future contracts	$ 30,035,312	$ 17,529,681	$ 60,724,547
Net realized gain (loss), Forward contracts	(7,815,159)	(436,996)	(8,884,366)
Net change in unrealized gain (loss), Future contracts	1,215,231	4,508,551	(29,011,747)
Net change in unrealized gain (loss), forward contracts	1,146,883	2,444,644	(205,234)
Net realized gain (loss), Investment in swap contract		8,706,658
Net change in unrealized gain (loss), Investment in swap contract		(3,440,896)	(4,630,918)
Net realized gain (loss)	22,220,153	25,799,343	51,840,181
Net change in unrealized gain (loss)	2,362,114	3,512,299	(33,847,899)
Agricultural Commodities [Member]
Net realized gain (loss), Future contracts	(6,968,291)	(4,535,068)	(9,005,724)
Net change in unrealized gain (loss), Future contracts	274,000	(779,900)	(480,153)
Currencies [Member]
Net realized gain (loss), Future contracts	(7,944,502)	11,798,113	(847,018)
Net change in unrealized gain (loss), Future contracts	34,900	(960,570)	(1,910,235)
Energy [Member]
Net realized gain (loss), Future contracts	(16,322,348)	(17,711,372)	45,065,516
Net change in unrealized gain (loss), Future contracts	1,714,614	(1,339,229)	(6,030,206)
Equity Indices [Member]
Net realized gain (loss), Future contracts	85,262,449	6,114,947	(5,916,524)
Net change in unrealized gain (loss), Future contracts	(792,640)	4,650,786	(5,606,594)
Interest Rate Instruments [Member]
Net realized gain (loss), Future contracts	(21,099,792)	32,280,416	27,500,225
Net change in unrealized gain (loss), Future contracts	(3,289,779)	6,307,243	(17,693,919)
Metals [Member]
Net realized gain (loss), Future contracts	(5,438,472)	(11,266,353)	4,126,059
Net change in unrealized gain (loss), Future contracts	3,067,571	(3,058,407)	2,975,459
Single Stock Futures [Member]
Net realized gain (loss), Future contracts	2,546,268	848,998	(197,987)
Net change in unrealized gain (loss), Future contracts	$ 206,565	$ (311,372)	$ (266,099)

Derivative Instruments Disclo39

Derivative Instruments Disclosures (Details Narrative) - Number	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Number of futures contracts open	45,440	59,052
Number of forward currency contracts open	2,030	2,054
Number of futures contracts closed	2,003,372	1,886,735	1,932,217
Number of forward currency contracts closed	236,846	173,576	151,846

General Partner (Details)

General Partner (Details) - Class I [Member] - General Partner [Member] - USD ($)	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Class of units
Units Owned (in shares)	254.4114	254.4114	254.4114
Value of Units	$ 260,358	$ 250,114	$ 250,383

General Partner (Details Narrat

General Partner (Details Narrative) - USD ($)	1 Months Ended	12 Months Ended
General Partner (Details Narrative) - USD ($)	Mar. 01, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Selling Agent and broker dealer servicing fees		$ 5,963,392	$ 8,453,865	$ 9,604,363
General Partner [Member]
Description of management fee	Equal to 1/12th of 1.25% of the month-end net asset value.	Equal to 1/12th of 1.75% of the month-end net asset value.
Description of admistrative expenses payable fee		Equal to 1/12th of 0.45% of the month-end net asset value.
Description of terms of partnership agreement		Each year the General Partner receives from the Fund 1% of any net income earned by the Fund. Conversely, the General Partner pays to the Fund 1% of any net loss incurred by the Fund. Such amounts are reflected as General Partner 1% allocation receivable or payable in the consolidated statements of financial condition and as General Partner 1% allocation in the consolidated statements of operations.
Description of operating services Fee	Equal to 1/12th of 0.5% per month	Equal to 1/12th of 0.24% of the month-end net asset value.
Class A [Member] \| General Partner [Member]
Description of management fee		Equal to 1/12th of 1.5% of the month-end net asset value.
Percentage of management fees, prior		1.50%
Description of selling agent fees		Equal to 1/12th of 2%, 0.6%, and 0.75% of the month-end net asset value.
Selling Agent and broker dealer servicing fees		$ 5,698,448	8,048,257	9,125,238
Description of distribution fee		Monthly 12b-1 fee of 1/12th of 0.25% of the month-end net asset value.
Class A 2 [Member] \| General Partner [Member]
Description of management fee		Equal to 1/12th of 1.5% of the month-end net asset value.
Percentage of management fees, prior		1.50%
Description of selling agent fees		sales commission of up to 3% of the offering price and a 0.6% per annum selling agent fee.
Class A 3 [Member] \| General Partner [Member]
Description of management fee		Equal to 1/12th of 1.5% of the month-end net asset value.
Percentage of management fees, prior		1.50%
Description of selling agent fees		sales commission of up to 2% of the offering price and a 0.75% per annum selling agent fee.
Class B [Member] \| General Partner [Member]
Description of management fee		Equal to 1/12th of 1.5% of the month-end net asset value.
Percentage of management fees, prior		1.50%
Selling Agent and broker dealer servicing fees		$ 264,944	$ 405,608	$ 479,125
Description of broker dealer servicing fee		Equal to 1/12th of 0.2% of the month-end net asset value.
Class R [Member] \| General Partner [Member]
Description of management fee		Equal to 1/12th of 1.5% of the month-end net asset value.
Percentage of management fees, prior		1.50%
Class I [Member] \| General Partner [Member]
Description of management fee		Equal to 1/12th of 0.75% of the month-end net asset value.
Percentage of management fees, prior		0.75%
Description of performance fee		Equal to 7.5% of any Net New Trading Profits of the Class I Units calculated monthly.
Class N [Member] \| General Partner [Member]
Description of distribution fee		Monthly 12b-1 fee of 1/12th of 0.25% of the month-end net asset value.
Class C [Member] \| General Partner [Member]
Description of distribution fee		1/12th of 1% of the month-end value.

Trading Advisors and Cash Man42

Trading Advisors and Cash Managers (Details Narrative)	12 Months Ended
Trading Advisors and Cash Managers (Details Narrative)	Dec. 31, 2017
Cash Managers [Member]
Cash management services	0.14%
Trading Advisor [Member] \| Minimum [Member]
Management fee	0.00%
Incentive fee	0.00%
Trading Advisor [Member] \| Maximum [Member]
Management fee	3.00%
Incentive fee	30.00%

Deposits with Brokers (Details

Deposits with Brokers (Details Narrative) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Deposits With Brokers
Margin deposit asset requirement	$ 71,513,422	$ 103,248,865

Subscriptions, Distributions 44

Subscriptions, Distributions and Redemptions (Details Narrative) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Capital Unit [Line Items]
Subscriptions received in advance	$ 287,000	$ 2,687,191
Class A [Member]
Capital Unit [Line Items]
Minimum investment amount	10,000
Class A 2 [Member]
Capital Unit [Line Items]
Minimum investment amount	10,000
Class A 3 [Member]
Capital Unit [Line Items]
Minimum investment amount	10,000
Class B [Member]
Capital Unit [Line Items]
Minimum investment amount	10,000
Class R [Member]
Capital Unit [Line Items]
Minimum investment amount	10,000
Class I [Member]
Capital Unit [Line Items]
Minimum investment amount	$ 2,000,000

Trading Activities and Relate45

Trading Activities and Related Risks (Details) - USD ($)	Dec. 31, 2017	Dec. 31, 2016
Total debt securities and certificates of deposit	$ 237,378,016	$ 460,016,825
% of Partners' Capital (Net Asset Value) (in percent)	66.39%	81.68%
United States [Member]
Total debt securities and certificates of deposit	$ 194,423,474	$ 401,330,693
% of Partners' Capital (Net Asset Value) (in percent)	54.38%	71.25%
Australia [Member]
Total debt securities and certificates of deposit	$ 5,121,192	$ 9,998,815
% of Partners' Capital (Net Asset Value) (in percent)	1.43%	1.78%
Luxembourg [Member]
Total debt securities and certificates of deposit	$ 2,997,265	$ 5,015,223
% of Partners' Capital (Net Asset Value) (in percent)	0.84%	0.89%
Singapore [Member]
Total debt securities and certificates of deposit	$ 1,599,760	$ 1,499,891
% of Partners' Capital (Net Asset Value) (in percent)	0.45%	0.27%
GERMANY [Member]
Total debt securities and certificates of deposit	$ 1,499,838	$ 2,499,715
% of Partners' Capital (Net Asset Value) (in percent)	0.42%	0.44%
Netherlands [Member]
Total debt securities and certificates of deposit	$ 18,032,725	$ 15,052,634
% of Partners' Capital (Net Asset Value) (in percent)	5.04%	2.67%
Canada [Member]
Total debt securities and certificates of deposit	$ 8,218,336	$ 6,864,143
% of Partners' Capital (Net Asset Value) (in percent)	2.30%	1.22%
FRANCE [Member]
Total debt securities and certificates of deposit	$ 5,485,426	$ 10,942,245
% of Partners' Capital (Net Asset Value) (in percent)	1.53%	1.94%
Great Britain [Member]
Total debt securities and certificates of deposit		$ 1,999,682
% of Partners' Capital (Net Asset Value) (in percent)		0.36%
Sweden [Member]
Total debt securities and certificates of deposit		$ 3,373,794
% of Partners' Capital (Net Asset Value) (in percent)		0.60%
Hong Kong [Member]
Total debt securities and certificates of deposit		$ 1,214,277
% of Partners' Capital (Net Asset Value) (in percent)		0.22%
Cayman Islands [Member]
Total debt securities and certificates of deposit		$ 225,713
% of Partners' Capital (Net Asset Value) (in percent)		0.04%
U.S. Treasury Securities [Member]
Total debt securities and certificates of deposit	$ 58,329,191	$ 91,313,694
% of Partners' Capital (Net Asset Value) (in percent)	16.31%	16.21%
U.S. Treasury Securities [Member] \| United States [Member]
Total debt securities and certificates of deposit	$ 58,329,191	$ 91,313,694
Commercial Paper [Member]
Total debt securities and certificates of deposit	$ 38,174,305	$ 67,749,447
% of Partners' Capital (Net Asset Value) (in percent)	10.68%	12.03%
Commercial Paper [Member] \| United States [Member]
Total debt securities and certificates of deposit	$ 30,479,713	$ 52,068,922
Commercial Paper [Member] \| Australia [Member]
Total debt securities and certificates of deposit	1,597,729	2,497,272
Commercial Paper [Member] \| Luxembourg [Member]
Total debt securities and certificates of deposit	2,997,265	2,099,839
Commercial Paper [Member] \| Singapore [Member]
Total debt securities and certificates of deposit	1,599,760	1,499,891
Commercial Paper [Member] \| GERMANY [Member]
Total debt securities and certificates of deposit	1,499,838	2,499,715
Commercial Paper [Member] \| FRANCE [Member]
Total debt securities and certificates of deposit		3,470,593
Commercial Paper [Member] \| Great Britain [Member]
Total debt securities and certificates of deposit		1,999,682
Commercial Paper [Member] \| Sweden [Member]
Total debt securities and certificates of deposit		399,256
Commercial Paper [Member] \| Hong Kong [Member]
Total debt securities and certificates of deposit		1,214,277
Corporate Notes [Member]
Total debt securities and certificates of deposit	$ 129,299,879	$ 229,354,824
% of Partners' Capital (Net Asset Value) (in percent)	36.16%	40.72%
Corporate Notes [Member] \| United States [Member]
Total debt securities and certificates of deposit	$ 94,039,929	$ 186,349,217
Corporate Notes [Member] \| Australia [Member]
Total debt securities and certificates of deposit	3,523,463	7,501,543
Corporate Notes [Member] \| Luxembourg [Member]
Total debt securities and certificates of deposit		2,915,384
Corporate Notes [Member] \| Netherlands [Member]
Total debt securities and certificates of deposit	18,032,725	15,052,634
Corporate Notes [Member] \| Canada [Member]
Total debt securities and certificates of deposit	8,218,336	6,864,143
Corporate Notes [Member] \| FRANCE [Member]
Total debt securities and certificates of deposit	5,485,426	7,471,652
Corporate Notes [Member] \| Sweden [Member]
Total debt securities and certificates of deposit		2,974,538
Corporate Notes [Member] \| Cayman Islands [Member]
Total debt securities and certificates of deposit		225,713
U.S. Asset-backed Securities [Member]
Total debt securities and certificates of deposit	$ 11,574,641	$ 36,022,365
% of Partners' Capital (Net Asset Value) (in percent)	3.24%	6.40%
U.S. Asset-backed Securities [Member] \| United States [Member]
Total debt securities and certificates of deposit	$ 11,574,641	$ 36,022,365
Certificates of Deposit [Member]
Total debt securities and certificates of deposit		35,576,495
Certificates of Deposit [Member] \| United States [Member]
Total debt securities and certificates of deposit		$ 35,576,495

Financial Highlights (Details)

Financial Highlights (Details) - $ / shares		12 Months Ended
Financial Highlights (Details) - $ / shares		Dec. 31, 2017	Dec. 31, 2016		Dec. 31, 2015	Dec. 31, 2014
Per Unit Operating Performance
Net asset value per unit at beginning of period or at issuance (in dollars per unit)	[1]
Net realized and change in unrealized gain (loss) on investments	[1],[2]
Net investment income (loss)	[1],[2]
Total income (loss) from operations
Net asset value per unit at end of period (in dollars per unit)	[1]
Total return	[1]
Ratios to average net asset value
Expenses prior to General Partner 1% allocation	[1],[3]
General Partner 1% allocation	[1]
Net total expenses	[1]
Net investment income (loss)	[1],[3],[4]
Class A [Member]
Per Unit Operating Performance
Net asset value per unit at beginning of period or at issuance (in dollars per unit)		$ 4,146.91	$ 4,096.03		$ 4,212.26
Net realized and change in unrealized gain (loss) on investments	[2]	274.94	130.21		75.45
Net investment income (loss)	[2]	(224.06)	(246.44)		(277.49)
Total income (loss) from operations		50.88	(116.23)		(202.04)
Net asset value per unit at end of period (in dollars per unit)		$ 4,146.91	$ 4,096.03		$ 4,212.26
Total return		1.24%	(2.76%)		(4.58%)
Ratios to average net asset value
Expenses prior to General Partner 1% allocation	[3]	6.86%	6.56%		6.86%
General Partner 1% allocation		0.00%	(0.02%)		(0.05%)
Net total expenses		6.86%	6.54%		6.81%
Net investment income (loss)	[3],[4]	(5.61%)	(5.72%)		(6.38%)
Class B [Member]
Per Unit Operating Performance
Net asset value per unit at beginning of period or at issuance (in dollars per unit)		$ 6,266.93	$ 6,080.47		$ 6,142.34
Net realized and change in unrealized gain (loss) on investments	[2]	415.13	185.48		113.27
Net investment income (loss)	[2]	(228.67)	(247.35)		(294.49)
Total income (loss) from operations		186.46	(61.87)		(181.22)
Net asset value per unit at end of period (in dollars per unit)		$ 6,266.93	$ 6,080.47		$ 6,142.34
Total return		3.07%	(1.01%)		(2.87%)
Ratios to average net asset value
Expenses prior to General Partner 1% allocation	[3]	5.06%	4.73%		5.14%
General Partner 1% allocation		0.01%	0.00%		(0.03%)
Net total expenses		5.07%	4.73%		5.11%
Net investment income (loss)	[3],[4]	(3.81%)	(3.89%)		(4.67%)
Class I [Member]
Per Unit Operating Performance
Net asset value per unit at beginning of period or at issuance (in dollars per unit)		$ 1,023.37	$ 983.11		$ 984.17
Net realized and change in unrealized gain (loss) on investments	[2]	67.05	28.96		15.59
Net investment income (loss)	[2]	(26.79)	(30.02)		(36.40)
Total income (loss) from operations		40.26	(1.06)		(20.81)
Net asset value per unit at end of period (in dollars per unit)		$ 1,023.37	$ 983.11		$ 984.17
Total return		4.10%	(0.11%)		(2.07%)
Ratios to average net asset value
Expenses prior to General Partner 1% allocation	[3]	3.97%	3.77%		4.12%
General Partner 1% allocation		0.04%	0.00%		(0.03%)
Net total expenses		4.01%	3.77%		4.09%
Net investment income (loss)	[3],[4]	(2.72%)	(2.94%)		(3.63%)
Class R [Member]
Per Unit Operating Performance
Net asset value per unit at beginning of period or at issuance (in dollars per unit)	[1]	$ 1,038.05	$ 1,000
Net realized and change in unrealized gain (loss) on investments	[1],[2]	62.87
Net investment income (loss)	[1],[2]	(24.82)
Total income (loss) from operations		38.05		[1]
Net asset value per unit at end of period (in dollars per unit)	[1]	$ 1,038.05	$ 1,000
Total return	[1]	3.80%
Ratios to average net asset value
Expenses prior to General Partner 1% allocation	[1],[3]	4.61%
General Partner 1% allocation	[1]	0.03%
Net total expenses	[1]	4.64%
Net investment income (loss)	[1],[3],[4]	(3.31%)

[1]	Class R Units were first issued on April 1, 2017.
[2]	The net investment income (loss) per unit is calculated by dividing the net investment income (loss) by the average number of Class A, B, I or R Units outstanding during the period. Net realized and change in unrealized gain (loss) on investments is a balancing amount necessary to reconcile the change in net asset value per unit with the other per unit information. Such balancing amount may differ from the calculation of net realized and change in unrealized gain (loss) on investment per unit due to the timing of investment gains and losses during the period relative to the number of units outstanding.
[3]	The net investment income (loss) includes interest income and excludes net realized and net change in unrealized gain (loss) from investment activities as shown in the consolidated statements of operations. The total amount is then reduced by all expenses, excluding brokerage commissions, which are included in net investment gain (loss) in the consolidated statements of operations. The resulting amount is divided by the average net asset value for the period.
[4]	Ratio excludes General Partner 1% allocation.

Subsequent Events (Details Narr

Subsequent Events (Details Narrative) - USD ($)	3 Months Ended	12 Months Ended
Subsequent Events (Details Narrative) - USD ($)	Mar. 20, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Contributions for trust		$ 22,095,648	$ 44,919,032	$ 68,298,890
Subsequent Event [Member] \| Steben Managed Futures Strategy Fund [Member]
Contributions for trust	$ 2,494,000
Amount of fund redeemed	$ 12,908,376

Deconsolidation of Steben Man48

Deconsolidation of Steben Managed Futures Strategy Fund (Details) - USD ($)	Dec. 31, 2017	Aug. 31, 2017	Dec. 31, 2016
Equity in broker trading accounts
Cash	$ 45,780,428		$ 80,906,352
Net unrealized gain (loss) on open futures contracts	8,930,417		8,921,229
Net unrealized gain (loss) on open forward currency contracts	1,902,516		830,153
Total equity in broker trading accounts	56,613,361		90,657,734
Cash and cash equivalents	44,360,633		37,230,210
Investments in securities, at fair value (cost $356,143,420 and $424,687,833)	237,378,016		424,440,330
Subscriptions receivable			381,917
Liabilities
Trading Advisor management fees payable	569,189		885,524
Distribution (12b-1) fees payable			2,961
Operating services fee payable			17,648
Redemptions payable	$ 11,825,677		$ 18,217,216
SMFSF [Member]
Equity in broker trading accounts
Cash		$ 17,813,620
Net unrealized gain (loss) on open futures contracts		1,206,044
Net unrealized gain (loss) on open forward currency contracts		74,520
Total equity in broker trading accounts		19,094,184
Cash and cash equivalents		1,690,646
Investments in securities, at fair value (cost $356,143,420 and $424,687,833)		53,611,230
Subscriptions receivable		543,627
Liabilities
Trading Advisor management fees payable		112,367
Distribution (12b-1) fees payable		3,331
Operating services fee payable		15,410
Redemptions payable		35,760
Net assets deconsolidated		74,772,819
Less: non-controlling interest		(38,169,976)
Fair value of interest retained		$ 36,602,843

Deconsolidation of Steben Man49

Deconsolidation of Steben Managed Futures Strategy Fund (Details Narrative) - USD ($)	1 Months Ended	12 Months Ended
	Aug. 31, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Fund's investment		$ 22,095,648	$ 44,919,032	$ 68,298,890
SMFSF [Member]
Deconsolidation of cash and cash equivalents	$ 19,504,266
Fund's investment		$ 34,000,000