Leases - Operating Lease Cost (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease cost	$ 9,851	$ 10,884	$ 11,000
Variable lease cost	1,629	1,886	1,800
Total operating lease cost	11,480	12,770	12,800
Operating Lease, Payments	$ 7,709	$ 10,527	$ 10,961