Accrued Expenses (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Accrued Liabilities, Current [Abstract]
Compensation	$ 18,131	$ 13,509
Current portion of cash-settled share-based liabilities	3,504	14,817
Interest and taxes	1,850	3,569
Customer rebates	11,575	10,266
Insurance	6,915	8,353
Current operating lease liability	8,034	6,487
Unearned revenue	21,325	15,389
Other	12,171	14,207
Total accrued expenses	$ 83,505	$ 86,597
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:AccruedLiabilitiesCurrent	us-gaap:AccruedLiabilitiesCurrent