INCOME TAXES - Reconcilements Between Statutory Federal Income Tax Rate And Effective Tax Rate (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Disclosure [Abstract]
Income tax expense at federal statutory rate	$ 46,696	$ 65,448	$ 26,130
Income tax expense at federal statutory rate	21.00%	21.00%	21.00%
Increase/ (decrease) resulting from:
Tax exempt income, net	$ (1,909)	$ (2,271)	$ (2,472)
Bank-owned life insurance	(662)	(602)	(567)
State income taxes, net of federal income tax benefits	11,339	14,593	5,648
Federal tax law change	0	0	(1,764)
Other, net	595	(616)	496
Total income tax expense	$ 56,059	$ 76,552	$ 27,471
Increase/ (decrease) resulting from:
Tax exempt income, net	(0.90%)	(0.70%)	(2.00%)
Bank-owned life insurance	(0.30%)	(0.20%)	(0.50%)
State income taxes, net of federal income tax benefits	5.10%	4.70%	4.50%
Federal tax law change	0.00%	0.00%	(1.40%)
Other, net	0.30%	(0.20%)	0.50%
Total income tax expense and rate	25.20%	24.60%	22.10%