Leases - Supplemental Cash Flows (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 8,272	$ 8,037
Operating cash flows from finance leases	29	45
Financing cash flows from finance leases	309	358
ROU assets obtained in exchange for lease obligations:
Operating leases	$ 13,611	$ 8,970