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Borrowed Funds - Schedule of Borrowed Funds (Detail) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
Debt Disclosure [Abstract]    
Securities sold under repurchase agreements $ 82,470 $ 98,000
FHLB line of credit 179,000 486,000
FHLB advances 1,588,244 753,370
Total borrowed funds $ 1,849,714 $ 1,337,370