LOANS AND LEASES - Originated Troubled Debt Restructurings by Class of Loans and Leases, Payment Default (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) contract
Financing Receivable, Modified [Line Items]
Number of Contracts | contract		20
Recorded Investment | $	$ 28.2	$ 2.0
Total commercial loans and leases
Financing Receivable, Modified [Line Items]
Number of Contracts | contract		7
Recorded Investment | $	27.4	$ 1.0
Total commercial loans and leases | Commercial real estate
Financing Receivable, Modified [Line Items]
Number of Contracts | contract		5
Recorded Investment | $	5.6	$ 1.0
Total commercial loans and leases | Commercial and industrial
Financing Receivable, Modified [Line Items]
Number of Contracts | contract		2
Recorded Investment | $	$ 21.8	$ 0.0
Total consumer loans
Financing Receivable, Modified [Line Items]
Number of Contracts | contract		13
Recorded Investment | $		$ 1.0
Total consumer loans | Direct installment
Financing Receivable, Modified [Line Items]
Number of Contracts | contract		5
Recorded Investment | $		$ 0.0
Total consumer loans | Residential mortgages
Financing Receivable, Modified [Line Items]
Number of Contracts | contract		8
Recorded Investment | $		$ 1.0