Leases - Balance Sheet Location (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Operating leases
Operating lease right-of-use assets	$ 16,069	$ 11,280
Other current liabilities	2,553	2,268
Long-term operating lease liabilities	13,516	9,012
Total operating lease liabilities	16,069	11,280
Finance leases
Property, plant, and equipment	1,116	3,426
Property, plant, and equipment	(869)	(2,892)
Property, plant, and equipment - net	247	534
Current maturities of long-term debt	119	377
Long-term debt	128	157
Total finance lease liabilities	$ 247	$ 534
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	us-gaap:AssetsAbstract
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:DebtCurrent
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible List]	us-gaap:LiabilitiesNoncurrentAbstract
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	us-gaap:LiabilitiesCurrentAbstract	us-gaap:LiabilitiesCurrentAbstract