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Leases - Lease Costs and Other Information (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Jun. 30, 2022
Jun. 30, 2021
Dec. 31, 2021
Leases [Abstract]          
Operating lease cost (cost resulting from lease payments) $ 1,820 $ 2,013 $ 3,661 $ 4,172  
Variable lease cost (cost excluded from lease payments) 279 223 511 473  
Sublease income (95) (87) (182) (174)  
Net lease cost 2,004 2,149 3,990 4,471  
Operating lease - operating cash flows (fixed payments) 1,923 $ 2,048 3,743 $ 4,352  
Operating lease right-of-use assets 27,548   27,548   $ 30,555
Operating lease liabilities $ 32,414   $ 32,414   $ 35,501
Weighted average lease term - operating leases 5 years 11 months 15 days   5 years 11 months 15 days   6 years 3 months 3 days
Weighted average discount rate - operating leases 2.98%   2.98%   3.05%