Fees (Details)	9 Months Ended
	Sep. 30, 2017
RPM [Member] | Annual Rate [Member]
Fees (Details) [Line Items]
Management Fee as a Percentage of Net Assets	0.75%
RPM [Member] | Monthly Rate [Member]
Fees (Details) [Line Items]
Management Fee as a Percentage of Net Assets	0.0625%
RPM [Member] | Class C and D Units [Member] | Quarterly Rate [Member]
Fees (Details) [Line Items]
Management Fee as a Percentage of Net Assets	10.00%
Managing Owner [Member] | Effective October 22_ 2013 [Member] | Annual Rate [Member]
Fees (Details) [Line Items]
Management Fee as a Percentage of Net Assets	0.50%
Trading Advisor [Member] | Annual Rate [Member] | Minimum [Member]
Fees (Details) [Line Items]
Management Fee as a Percentage of Net Assets	0.50%
Trading Advisor [Member] | Annual Rate [Member] | Maximum [Member]
Fees (Details) [Line Items]
Management Fee as a Percentage of Net Assets	1.00%
Trading Advisor [Member] | Monthly Rate [Member] | Minimum [Member]
Fees (Details) [Line Items]
Management Fee as a Percentage of Net Assets	0.042%
Trading Advisor [Member] | Monthly Rate [Member] | Maximum [Member]
Fees (Details) [Line Items]
Management Fee as a Percentage of Net Assets	0.083%
Trading Advisor [Member] | Quarterly Rate [Member] | Minimum [Member]
Fees (Details) [Line Items]
Advisors Incentive Fee as a Percentage of New Trading Profit	15.00%
Trading Advisor [Member] | Quarterly Rate [Member] | Maximum [Member]
Fees (Details) [Line Items]
Advisors Incentive Fee as a Percentage of New Trading Profit	25.00%