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Leases - Balance Sheet Disclosures and Components of Lease Expense (Details) - USD ($)
$ in Thousands
 3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Operating lease ROU assets $ 48,475 $ 50,200 $ 50,200
Operating lease liability $ 52,292 $ 54,155 $ 54,155
Weighted-average remaining lease term-operating leases (Year) 7 years 2 months 12 days 7 years 4 months 24 days  
Weighted average discount rate-operating leases 3.10% 3.10%  
Short-term lease cost $ 61 $ 35  
Variable lease cost 200 298  
Total lease cost 2,382 2,437  
Operating cash flows from operating leases 2,426 5,630  
Right-of-use assets obtained in exchange for new operating lease liabilities 47 4,760  
Occupancy and equipment      
Operating lease cost 2,097 2,080  
Other operating expense      
Operating lease cost 2 2  
Other operating expenses 1      
Operating lease cost $ 22 $ 22