Leases - Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Lease, Cost
Amortization of finance leases	$ 203	$ 429
Interest on lease liabilities	82	72
Operating lease cost	2,784	2,964
Sublease income	(200)	(167)
Total lease cost	$ 2,869	$ 3,298