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Subsequent Events (Details) - $ / shares
3 Months Ended 12 Months Ended
Dec. 31, 2017
Dec. 31, 2017
Subsequent Event [Line Items]    
Distribution declaration date   Jan. 22, 2018
Series A Preferred Unit PIK Distribution 172,210  
Amount of declared distribution $ 0.1875  
Amount of declared distribution on an annualized basis $ 0.75  
Distribution payment date Feb. 14, 2018  
Distribution record date Feb. 01, 2018