Borrowed Funds - Schedule of Borrowed Funds (Detail) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Debt Disclosure [Abstract]
Securities sold under repurchase agreements	$ 72,161	$ 98,000
FHLB line of credit	148,000	486,000
FHLB advances	1,299,872	753,370
FED Bank Term Funding Program ("BTFP") Borrowing	450,000	0
Borrowed funds	$ 1,970,033	$ 1,337,370