Derivative Instruments (Offsetting Derivative Assets) (Details) - USD ($)	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Offsetting Assets [Line Items]
Gross amounts of recognized assets	$ 6,630,813	$ 2,586,512
Gross amounts offset in the Statement of Financial Condition	(4,871,225)	(1,489,040)
Net amounts of assets presented in the Statement of Financial Condition	1,759,588	1,097,472
Financial Instruments
Collateral Received	(992,253)	(1,097,472)
Net Amount	$ 767,335
Collateral disclosed as a percentage of net assets, maximum allowed	100.00%	100.00%
Counterparty C [Member]
Offsetting Assets [Line Items]
Net amounts of assets presented in the Statement of Financial Condition	$ 447,513	$ 375,182
Financial Instruments
Collateral Received	(447,513)	(375,182)
Net Amount
Counterparty G [Member]
Offsetting Assets [Line Items]
Net amounts of assets presented in the Statement of Financial Condition	172,130
Financial Instruments
Net Amount	172,130
Counterparty I [Member]
Offsetting Assets [Line Items]
Net amounts of assets presented in the Statement of Financial Condition		312,688
Financial Instruments
Collateral Received		(312,688)
Net Amount
Counterparty J [Member]
Offsetting Assets [Line Items]
Net amounts of assets presented in the Statement of Financial Condition	404,521	409,602
Financial Instruments
Collateral Received	(404,521)	(409,602)
Net Amount
Counterparty K [Member]
Offsetting Assets [Line Items]
Net amounts of assets presented in the Statement of Financial Condition	595,205
Financial Instruments
Net Amount	595,205
Counterparty L [Member]
Offsetting Assets [Line Items]
Net amounts of assets presented in the Statement of Financial Condition	140,219
Financial Instruments
Collateral Received	(140,219)
Net Amount
Futures Contracts [Member]
Offsetting Assets [Line Items]
Gross amounts of recognized assets	2,064,602
Gross amounts offset in the Statement of Financial Condition	(1,072,349)
Net amounts of assets presented in the Statement of Financial Condition	992,253
Futures Contracts [Member] | Counterparty C [Member]
Offsetting Assets [Line Items]
Gross amounts of recognized assets	663,463	719,162
Gross amounts offset in the Statement of Financial Condition	(215,950)	(343,980)
Net amounts of assets presented in the Statement of Financial Condition	447,513	375,182
Futures Contracts [Member] | Counterparty I [Member]
Offsetting Assets [Line Items]
Gross amounts of recognized assets		1,247,715
Gross amounts offset in the Statement of Financial Condition		(935,027)
Net amounts of assets presented in the Statement of Financial Condition		312,688
Futures Contracts [Member] | Counterparty J [Member]
Offsetting Assets [Line Items]
Gross amounts of recognized assets	504,819	619,635
Gross amounts offset in the Statement of Financial Condition	(100,298)	(210,033)
Net amounts of assets presented in the Statement of Financial Condition	404,521	$ 409,602
Futures Contracts [Member] | Counterparty L [Member]
Offsetting Assets [Line Items]
Gross amounts of recognized assets	896,320
Gross amounts offset in the Statement of Financial Condition	(756,101)
Net amounts of assets presented in the Statement of Financial Condition	140,219
Forward Currency Contracts [Member]
Offsetting Assets [Line Items]
Gross amounts of recognized assets	4,566,211
Gross amounts offset in the Statement of Financial Condition	(3,798,876)
Net amounts of assets presented in the Statement of Financial Condition	767,335
Forward Currency Contracts [Member] | Counterparty G [Member]
Offsetting Assets [Line Items]
Gross amounts of recognized assets	2,131,073
Gross amounts offset in the Statement of Financial Condition	(1,958,943)
Net amounts of assets presented in the Statement of Financial Condition	172,130
Forward Currency Contracts [Member] | Counterparty K [Member]
Offsetting Assets [Line Items]
Gross amounts of recognized assets	2,435,138
Gross amounts offset in the Statement of Financial Condition	(1,839,933)
Net amounts of assets presented in the Statement of Financial Condition	$ 595,205