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Trade Accounts Payable and Accrued Expenses (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Trade Accounts Payable and Accrued Expenses [Abstract]    
Trade accounts payable $ 13,073 $ 11,796
Federal excise taxes payable 13,945 9,386
Accrued other 15,973 14,968
Trade accounts payable and accrued expenses $ 42,991 $ 36,150