Leases (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases
Rental expense	$ 3,852	$ 3,477	$ 4,573
Lease, Practical Expedients, Package	true
Lease, Practical Expedient, Use of Hindsight	false
Operating lease, existence of option to extend	true
Minimum
Leases
Operating lease, remaining lease term	1 year
Maximum
Leases
Operating lease, remaining lease term	8 years
Operating lease, renewal term	5 years