Advisory fee percentage per year on month end net assets.

No definition available.

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- Definition

Maintenance fee percentage per year on month end net assets.

+ References

No definition available.

+ Details

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- Definition

Maintenance fees percentage.

+ References

No definition available.

+ Details

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- Definition

Monthly administrative fees percentage.

+ References

No definition available.

+ Details

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- Definition

Monthly asset advisory fee.

+ References

No definition available.

+ Details

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- Definition

Ongoing selling agent fee.

+ References

No definition available.

+ Details

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- Definition

Ongoing selling agent percentage per year on month end net assets.

+ References

No definition available.

+ Details

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- Definition

Percentage of administrative fees based on assets under management.

+ References

No definition available.

+ Details

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- Definition

Percentage of incentive fees.

+ References

No definition available.

+ Details

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- Definition

Percentage of management fees paid.

+ References

No definition available.

+ Details

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- Definition

Share based compensation allocation percentage.

+ References

No definition available.

+ Details

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- Definition

Treasury Bill Maturity Period

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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- Definition

The amount of cash or securities placed with a broker or counterparty as security for a trading or derivatives securities position which was partially obtained with funds provided by the broker dealer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.8,17)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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Agreements - Additional Information (Detail) - USD ($)			3 Months Ended		6 Months Ended	12 Months Ended
Agreements - Additional Information (Detail) - USD ($)	Mar. 31, 2015	Sep. 30, 2014	Dec. 31, 2015	Mar. 31, 2014	Sep. 30, 2014	Dec. 31, 2017	Dec. 31, 2016
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Monthly advisory fees						0.167%
Advisory fees per year						2.00%
Incentive fee	20.00%					20.00%
Cash held for margin						$ 9,145,348	$ 11,471,701
Limited Partnership [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Management fees on assets		0.50%				1.00%
Management fees paid		0.50%				1.00%
Administrative fees paid		0.08333%				0.08333%
Customer Agreement [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage of allocated shares						80.00%
Customer Agreement [Member] \| Wells Fargo [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage of allocated shares						90.00%
Cash held for margin						$ 8,446,588	11,471,701
Treasury bills maturity period						90 days
Customer Agreement [Member] \| Wedbush [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Cash held for margin						$ 218,362	480,398
Customer Agreement [Member] \| ADM [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Cash held for margin						$ 0	$ 0
Customer Agreement [Member] \| Robert W- Baird And Company [Member] \| Class A [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage of maintenance fee						0.1667%
Maintenance fees per year						2.00%
Customer Agreement [Member] \| Robert W- Baird And Company [Member] \| Class D [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage of maintenance fee						0.0625%
Maintenance fees per year						0.75%
Selling Agreement [Member] \| Morgan Stanley Wealth Management [Member] \| Class A [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage of ongoing selling agent fees			0.1667%	0.3125%	0.2083%
Ongoing selling agent fees per year			2.00%	3.75%	2.50%
Selling Agreement [Member] \| Morgan Stanley Wealth Management [Member] \| Class D [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage of ongoing selling agent fees			0.0625%	0.125%	0.10417%
Ongoing selling agent fees per year			0.75%	1.50%	1.25%
Selling Agreement [Member] \| Robert W- Baird And Company [Member] \| Class A [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage of ongoing selling agent fees						0.1667%
Ongoing selling agent fees per year						2.00%
Selling Agreement [Member] \| Robert W- Baird And Company [Member] \| Class D [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage of ongoing selling agent fees						0.0625%
Ongoing selling agent fees per year						0.75%
Continuing Services Agreement [Member] \| Morgan Stanley Wealth Management [Member] \| Class A [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage of ongoing selling agent fees						0.1667%
Ongoing selling agent fees per year						2.00%
Continuing Services Agreement [Member] \| Morgan Stanley Wealth Management [Member] \| Class D [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage of ongoing selling agent fees						0.0625%
Ongoing selling agent fees per year						0.75%
Continuing Services Agreement [Member] \| Credit Suisse Securities (USA) LLC [Member] \| Class A [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage of ongoing selling agent fees						0.1667%
Ongoing selling agent fees per year						2.00%
Continuing Services Agreement [Member] \| Credit Suisse Securities (USA) LLC [Member] \| Class D [Member]
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Percentage of ongoing selling agent fees						0.0625%
Ongoing selling agent fees per year						0.75%