ALLOWANCE FOR CREDIT LOSSES FOR LOANS AND FINANCE LEASES - Activity in ACL on loans and finance leases (Detail) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	$ 261,843	$ 260,464
Provision for credit losses - (benefit) expense	12,917	16,256
Charge-offs	(29,339)	(17,917)
Recoveries	18,171	4,648
Ending balance	263,592	265,567
Accounting Standard Update 2022-02 [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance		2,116
Residential Portfolio Segment [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	57,397	62,760
Provision for credit losses - (benefit) expense	(464)	73
Charge-offs	(516)	(983)
Recoveries	272	497
Ending balance	56,689	64,403
Residential Portfolio Segment [Member] | Accounting Standard Update 2022-02 [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance		2,056
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	33,190	32,906
Provision for credit losses - (benefit) expense	(3,360)	(1,650)
Charge-offs	(459)	(118)
Recoveries	5,119	90
Ending balance	34,490	31,235
Commercial Portfolio Segment [Member] | Commercial And Industrial Sector [Member] | Accounting Standard Update 2022-02 [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance		7
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	32,631	35,064
Provision for credit losses - (benefit) expense	(10)	1,246
Charge-offs	0	(18)
Recoveries	40	168
Ending balance	32,661	36,460
Commercial Portfolio Segment [Member] | Mortgage Receivable [Member] | Accounting Standard Update 2022-02 [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance		0
Commercial Portfolio Segment [Member] | Construction Loans [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	5,605	2,308
Provision for credit losses - (benefit) expense	571	860
Charge-offs	0	0
Recoveries	10	63
Ending balance	6,186	3,231
Commercial Portfolio Segment [Member] | Construction Loans [Member] | Accounting Standard Update 2022-02 [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance		0
Consumer Portfolio Segment [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance	133,020	127,426
Provision for credit losses - (benefit) expense	16,180	15,727
Charge-offs	(28,364)	(16,798)
Recoveries	12,730	3,830
Ending balance	133,566	130,238
Consumer Portfolio Segment [Member] | Bulk Sale Of Fully Charged-Off Loans [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Recoveries	$ 9,500
Consumer Portfolio Segment [Member] | Accounting Standard Update 2022-02 [Member]
Financing Receivable Allowance For Credit Losses [Line Items]
Beginning balance		$ 53