DISCLOSURES ABOUT FAIR VALUE OF FINANCIAL INSTRUMENTS - Statement of Changes in Level 3 Assets Measured at Fair Value on a Recurring Basis (Detail) - Significant Unobservable Inputs (Level 3) - Asset-backed securities - Fair Value, Measurements, Recurring - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Asset-backed securities
Balance at beginning of period	$ 21,862	$ 51,825	$ 34,949	$ 73,266
Principal payments and premium amortization	(5,704)	(10,023)	(19,652)	(31,683)
Increase in allowance for credit losses	(24)	(442)	(24)	(1,488)
Decrease in allowance for credit losses	84	250	200	311
Change in fair value recognized in OCI	607	755	1,352	1,959
Balance at end of period	$ 16,825	$ 42,365	$ 16,825	$ 42,365