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Related Parties - Summary of Balance Outstanding of Related Parties (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Related Party Transactions [Abstract]    
Net revenue $ 28,127 $ 23,457
Operating expenses 7,272 2,888
Interest expense 1,498 1,590
Dividends received 2,200 12,357
Accounts receivable 2,644 5,058
Long-term debt 34,766 37,627
Accounts payable $ 2,760 $ 9