BUSINESS COMBINATION - Pro-forma Financial Information (Details) - Mechanics Bank Acquisition - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2025
Business Combination [Line Items]
Net interest income	$ 176,294	$ 350,693
Noninterest income	34,342	61,126
Net income before income taxes	$ 67,469	$ 131,352

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details