PARENT COMPANY FINANCIAL INFORMATION - Statements of Income (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income:
Other income	$ 4,687	$ 9,869	$ 3,976
Expenses:
Total interest expense	68,663	25,766	60,401
Income tax expense (benefit)	56,059	76,552	27,471
Net income	166,299	235,107	96,953
Parent Company
Income:
Cash dividends from subsidiary	65,410	189,172	74,410
Other income	494	434	932
Total income	65,904	189,606	75,342
Expenses:
Interest	14,055	6,765	9,028
Other expenses	1,750	1,592	1,505
Total interest expense	15,805	8,357	10,533
Income before income tax expense	50,099	181,249	64,809
Income tax expense (benefit)	(3,175)	(1,563)	(1,988)
Income before equity in undistributed income of subsidiary	53,274	182,812	66,797
Equity in undistributed income of subsidiary	113,025	52,295	30,156
Net income	$ 166,299	$ 235,107	$ 96,953