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Loan Servicing Rights - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Mar. 31, 2021
Transfers and Servicing [Abstract]      
Servicing asset $ 38,245 $ 30,000 $ 28,116
Principal balance of loans serviced for others 4,426,000 3,662,000  
Funds held in escrow 46,500 18,200  
Fair value of servicing rights $ 45,500 $ 33,800  
Fair value at discount rate 9.00% 9.00%  
Fair value inputs weighted average prepayment speed 9.00% 10.00%