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Leases - Balance Sheet Disclosures and Components of Lease Expense (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Operating lease ROU assets $ 44,885   $ 44,885   $ 50,200
Operating lease liability $ 48,330   $ 48,330   $ 54,155
Weighted-average remaining lease term-operating leases (Year) 6 years 9 months 18 days   6 years 9 months 18 days   7 years 4 months 24 days
Weighted average discount rate-operating leases 3.10%   3.10%   3.10%
Operating lease cost     $ 6,299 $ 6,503  
Short-term lease cost $ 36 $ 34 132 129  
Variable lease cost 275 230 713 826  
Total lease cost 2,434 2,481 7,215 7,520  
Operating cash flows from operating leases 2,342 2,435 7,111 10,483  
Right-of-use assets obtained in exchange for new operating lease liabilities   28 47 4,827  
Occupancy and equipment          
Operating lease cost 2,100 2,197      
Other operating expenses 1          
Operating lease cost $ 23 $ 20 $ 71 $ 62