Accrued Expenses (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accrued Liabilities, Current [Abstract]
Compensation	$ 27,669	$ 22,215
Interest and taxes	13,102	11,742
Customer rebates	10,303	9,733
Insurance	7,584	9,057
Acquisition payable	1,000	2,314
Other	10,734	12,544
Total accrued expenses	$ 70,392	$ 67,605