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Operations (Details)
6 Months Ended
Jun. 30, 2017
Operations (Details) [Line Items]  
Written Notice Period for Redemption 5 days
Payment Period for Redemption of Units 10 days
Capital Unit, Class D [Member]  
Operations (Details) [Line Items]  
Selling Commission 2.00%
Class C and D Units [Member]  
Operations (Details) [Line Items]  
Wholesaling Fee, Percentage 0.35%