FAIR VALUE MEASUREMENTS - Schedule of Fair Value of Derivative Instruments and Loans Held for Sale (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Sep. 30, 2024	Dec. 31, 2023
Derivative notional amount and balance sheet location
Estimated Gain on Sale	$ 40,545	$ 25,864
Total Fair Value Adjustment	40,545	25,864
Derivative assets	33,699	31,451
Derivative Liabilities	(4,026)	(28,247)
Fair Value Adjustment to Loans Held for Sale	10,872	22,660
Rate Lock Commitments
Derivative notional amount and balance sheet location
Notional Amount	755,874	463,626
Estimated Gain on Sale	31,219	15,908
Interest Rate Movement	(3,865)	11,492
Total Fair Value Adjustment	27,354	27,400
Derivative assets	27,354	27,400
Forward Sale Contracts
Derivative notional amount and balance sheet location
Notional Amount	1,769,986	1,035,964
Interest Rate Movement	2,319	(24,196)
Total Fair Value Adjustment	2,319	(24,196)
Derivative assets	6,345	4,051
Derivative Liabilities	(4,026)	(28,247)
Loans Held for Sale
Derivative notional amount and balance sheet location
Principal Amount	1,014,112	572,338
Estimated Gain on Sale	9,326	9,956
Interest Rate Movement	1,546	12,704
Total Fair Value Adjustment	10,872	22,660
Fair Value Adjustment to Loans Held for Sale	$ 10,872	$ 22,660