Summary of Significant Accounting Policies (Other Current Liabilities) (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Accounting Policies [Abstract]
Accounts payable	$ 9,453	$ 10,573
Accrued promotional expenses	19,857	23,763
Accrued excise and payroll taxes payable, net	22,809	10,044
Accrued interest	33,130	35,449
Commissions payable	14,269	6,164
Accrued salary and benefits	20,857	26,958
Other current liabilities	25,450	22,901
Total other current liabilities	$ 145,825	$ 135,852