INCOME TAXES- Reconciliations of Income tax expenses (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Income Tax Expense (Benefit), Continuing Operations, Income Tax Reconciliation [Abstract]
Computed income tax at statutory rate	$ 167,844	$ 160,431	$ 43,621
Federal and state taxes	10,268	7,014	4,944
Benefit of net exempt income	(31,266)	(20,717)	(26,780)
Disallowed NOL carryforward resulting from net exempt income	14,221	8,791	9,054
Deferred tax valuation allowance	(8,410)	(13,572)	(12,095)
Share based compensation windfull	(1,492)	(1,044)	157
Other permanent differences	(7,647)	(1,185)	(387)
Tax return to provision adjustments	(519)	(406)	597
Other-net	(487)	7,480	(5,061)
Total income tax expense	$ 142,512	$ 146,792	$ 14,050
Federal and state taxes %	2.20%	1.60%	4.20%
Benefit of net exempt income %	(7.00%)	(4.80%)	(23.00%)
Disallowed NOL carryforward resulting from net exempt income %	3.20%	2.00%	7.80%
Deferred tax valuation allowance %	(1.90%)	(3.20%)	(10.40%)
Share based compensation windfall %	(0.30%)	(0.20%)	0.10%
Other permanent differences %	(1.70%)	(0.30%)	(0.30%)
Tax-return provision adjustments %	(0.10%)	(0.10%)	0.50%
Other-net %	(0.10%)	1.70%	(4.30%)
Computed income tax at statutory tax rate %	37.50%	37.50%	37.50%
Total income tax expense (benefit) %	31.80%	34.20%	12.10%