Trading Activities - Summary of Valuation of Master's Investments (Detail) - CMF Winton Master L.P. [Member] - USD ($)	Jun. 30, 2020	Dec. 31, 2019
Derivative [Line Items]
Gross Amounts Recognized, Assets	$ 3,863,668	$ 9,118,169
Gross Amounts Offset in the Statements of Financial Condition, Assets	(3,863,668)	(8,690,494)
Amounts Presented in the Statements of Financial Condition, Assets		427,675
Net Amount, Assets		427,675
Gross Amounts Recognized, Liabilities	(6,337,248)	(12,038,364)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	3,863,668	8,690,494
Amounts Presented in the Statements of Financial Condition, Liabilities	(2,473,580)	(3,347,870)
Cash Collateral Received/Pledged, Liabilities	2,473,580	3,347,870
Net fair value		427,675
MS&Co. [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	3,570,278	7,979,665
Gross Amounts Offset in the Statements of Financial Condition, Assets	(3,570,278)	(7,979,665)
Gross Amounts Recognized, Liabilities	(5,739,807)	(11,327,535)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	3,570,278	7,979,665
Amounts Presented in the Statements of Financial Condition, Liabilities	(2,169,529)	(3,347,870)
Cash Collateral Received/Pledged, Liabilities	2,169,529	3,347,870
Futures Contracts [Member]
Derivative [Line Items]
Amounts Presented in the Statements of Financial Condition, Liabilities	(369,412)	(869,229)
Futures Contracts [Member] \| MS&Co. [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	2,081,423	6,198,249
Gross Amounts Offset in the Statements of Financial Condition, Assets	(2,081,423)	(6,198,249)
Gross Amounts Recognized, Liabilities	(2,450,835)	(7,067,478)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	2,081,423	6,198,249
Amounts Presented in the Statements of Financial Condition, Liabilities	(369,412)	(869,229)
Cash Collateral Received/Pledged, Liabilities	369,412	869,229
Forward Contracts [Member]
Derivative [Line Items]
Amounts Presented in the Statements of Financial Condition, Liabilities	(2,104,168)	(2,050,966)
Forward Contracts [Member] \| MS&Co. [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	1,488,855	1,781,416
Gross Amounts Offset in the Statements of Financial Condition, Assets	(1,488,855)	(1,781,416)
Gross Amounts Recognized, Liabilities	(3,288,972)	(4,260,057)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	1,488,855	1,781,416
Amounts Presented in the Statements of Financial Condition, Liabilities	(1,800,117)	(2,478,641)
Cash Collateral Received/Pledged, Liabilities	1,800,117	2,478,641
Forward Contracts [Member] \| JPMorgan [Member]
Derivative [Line Items]
Gross Amounts Recognized, Assets	293,390	1,138,504
Gross Amounts Offset in the Statements of Financial Condition, Assets	(293,390)	(710,829)
Amounts Presented in the Statements of Financial Condition, Assets		427,675
Net Amount, Assets		427,675
Gross Amounts Recognized, Liabilities	(597,441)	(710,829)
Gross Amounts Offset in the Statements of Financial Condition, Liabilities	293,390	$ 710,829
Amounts Presented in the Statements of Financial Condition, Liabilities	(304,051)
Cash Collateral Received/Pledged, Liabilities	$ 304,051

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