Commitments, Guarantees and Contingent Liabilities - Maximum obligation to extend credit (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Commitments and Contingencies Disclosure [Abstract]
Commitments to make loans	$ 1,244,907	$ 1,175,916
Unused lines of credit	969,220	626,348
Standby letters of credit	10,955	10,851
Total	$ 2,225,082	$ 1,813,115