Commitments and Contingencies - Schedule of Financial Instruments as of the Dates Indicated (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Commitments to extend credit
Disclosure Of Financial Instruments Indicated [Line Items]
Contractual obligation	$ 6,065,782	$ 6,027,356
Standby letters of credit
Disclosure Of Financial Instruments Indicated [Line Items]
Contractual obligation	49,963	58,632
Forward commitments to sell loans
Disclosure Of Financial Instruments Indicated [Line Items]
Contractual obligation	$ 7,965	$ 9,198