Leases - Operating Lease Expense, Operating Lease Cash Flows and Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Lessee, Lease, Description [Line Items]
Total operating lease expense	$ 1,651	$ 1,402	$ 3,357	$ 2,790
Operating cash outflows from operating leases	1,585	1,543	3,383	3,068
Operating lease right-of-use assets obtained in exchange for lease obligations	2,711	0	3,009	186
Non-cash release of operating lease obligations	0	0	654	0
Cost of sales
Lessee, Lease, Description [Line Items]
Total operating lease expense	628	382	1,298	772
Selling, general and administrative expenses
Lessee, Lease, Description [Line Items]
Total operating lease expense	$ 1,023	$ 1,020	$ 2,059	$ 2,018