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Commitments and Contingencies - Schedule of Total Unfunded Commitments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Commitment And Contingencies [Line Items]
Total unfunded commitments	$ 1,810,100	$ 2,008,337
Unfunded loan commitment reserves [Member]
Commitment And Contingencies [Line Items]
Total unfunded commitments	885,416	1,124,942
Credit Card Lines of Credit [Member]
Commitment And Contingencies [Line Items]
Total unfunded commitments	6,888	7,167
Unfunded Commitment Line Of Credit [Member]
Commitment And Contingencies [Line Items]
Total unfunded commitments	907,916	862,369
Commercial And Standby Letters Of Credit [Member]
Commitment And Contingencies [Line Items]
Total unfunded commitments	$ 9,880	$ 13,859

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Unfunded Loan Commitments.

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