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Leases - Lease Costs and Other Information (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Leases [Abstract]    
Operating lease cost (cost resulting from lease payments) $ 8,104 $ 8,411
Variable lease cost (cost excluded from lease payments) 876 971
Sublease income (348) (347)
Net lease cost 8,632 9,035
Operating lease - operating cash flows (fixed payments) 6,046 9,232
Right-of-use assets - operating leases 30,555 25,237
Operating lease liabilities $ 35,501 $ 28,022
Weighted average lease term - operating leases 6 years 3 months 3 days 6 years 2 months 12 days
Weighted average discount rate - operating leases 3.05% 4.00%