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ALLOWANCE FOR CREDIT LOSSES ON LOANS AND FINANCE LEASES - Carrying Amount of Portfolios (Parenthetical) (Detail) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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Financing Receivable Allowance For Credit Losses [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | $ 11,552,825 | $ 11,060,658
Commercial Portfolio Segment [Member] | COVID-19 [Member] | Small Business Administration [Member] |  |
Financing Receivable Allowance For Credit Losses [Line Items] |  |
Financing Receivable, before Allowance for Credit Loss | $ 6,800 | $ 145,000

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