Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Accrued Liabilities Current [Abstract]
Rent	$ 15,660	$ 19,899
Advertising rebates	20,403	15,966
Marketing and advertising	14,334	14,385
Interest	6,504	6,644
Taxes payable	35,841	456
Other	96,914	95,130
Total accrued liabilities	$ 189,656	$ 152,480