SEGMENT INFORMATION - Reconciliation of Reportable Segment Financial Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net Income (Loss):
Income before income taxes	$ 447,584	$ 427,817	$ 116,323
Income tax expense	142,512	146,792	14,050
Net income	305,072	281,025	102,273
Segment Reconciling Items [Member]
Net Income (Loss):
Segment income	602,868	620,011	281,699
Other operating expenses	155,284	192,194	165,376
Income before income taxes	447,584	427,817	116,323
Income tax expense	142,512	146,792	14,050
Net income	305,072	281,025	102,273
Average assets:
Total average earning assets for segments	18,516,894	19,235,941	14,201,505
Average non-earning assets	861,755	1,067,092	1,031,141
Total consolidated average assets	$ 19,378,649	$ 20,303,033	$ 15,232,646