Commitments and Contingencies - Schedule of Outstanding Loan Commitments (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Loss Contingencies [Line Items]
Loan commitments	$ 620,279	$ 332,963
Unused lines of credit	1,450,496	1,088,060
Total	2,070,775	1,421,023
Fixed Rate
Loss Contingencies [Line Items]
Loan commitments	389,758	238,745
Unused lines of credit	273,693	188,014
Total	663,451	426,759
Variable Rate
Loss Contingencies [Line Items]
Loan commitments	230,521	94,218
Unused lines of credit	1,176,803	900,046
Total	$ 1,407,324	$ 994,264