NONINTEREST INCOME - Schedule of Investment Management and Fiduciary Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Investment management and fiduciary income
Revenue from External Customer [Line Items]
Noninterest income	$ 43,774	$ 37,606	$ 83,055	$ 70,534
Trust fees
Revenue from External Customer [Line Items]
Noninterest income	32,322	26,143	60,391	48,004
Wealth management and advisory fees
Revenue from External Customer [Line Items]
Noninterest income	$ 11,452	$ 11,463	$ 22,664	$ 22,530