Leases - Lease Term and Discount Rates (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Leases
Operating lease, right of use assets	$ 12,634
Finance lease, right of use assets	271
Lease right of use assets	12,905
Operating leases liabilities - Current	$ 5,040
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Current
Financing leases liabilities - Current	$ 293	$ 275
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Current	Other Liabilities, Current
Operating leases liabilities - Noncurrent	$ 8,256
Financing leases liabilities - Noncurrent	$ 25	$ 318
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Lease liabilities	$ 13,614
Operating leases - Weighted-average remaining lease term (years)	3 years 7 months 17 days
Financing leases - Weighted-average remaining lease term (years)	1 year 29 days
Operating leases - Weighted-average discount rate	3.91%
Financing leases - Weighted-average discount rate	6.19%