FINANCIAL INSTRUMENTS WITH OFF-BALANCE SHEET RISK - Summary Of Financial Instruments With Off-Balance Sheet Credit Risk (Detail) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total commitments to extend credit and available credit lines	$ 3,384,469	$ 3,780,018
Commercial real estate development and construction
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total commitments to extend credit and available credit lines	336,837	572,540
Residential real estate-development and construction
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total commitments to extend credit and available credit lines	610,428	713,903
Real estate-residential mortgage
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total commitments to extend credit and available credit lines	11,237	16,608
Lines of credit, principally home equity and business lines
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total commitments to extend credit and available credit lines	2,330,736	2,405,150
Standby letters of credit
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Total commitments to extend credit and available credit lines	$ 95,231	$ 71,817