OTHER COMPREHENSIVE (LOSS) INCOME - Reclassifications Out of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands	4 Months Ended	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other expenses	$ 0	$ 3	$ 1
Income before income taxes		447,584	427,817	$ 116,323
Income tax (benefit) expense		(142,512)	(146,792)	(14,050)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income before income taxes		3	1	(13,198)
Income tax (benefit) expense		(1)	0	0
Total, net of tax		2	1	(13,198)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Realized gain on sales of debt securities
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Net gain on investment securities		0	0	(13,198)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Other Expenses [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Other expenses		$ 3	$ 1	$ 0