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DERIVATIVES - Summary of Derivative Financial Instruments and Balances (Detail) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Derivatives, Fair Value [Line Items] |  |
Derivative, Notional Amount | $ 17,683,691 | $ 11,875,690
Derivative Asset | 212,970 | 272,499
Estimate Fair Value Loss | (212,977) | (272,606)
Fair Value Hedges | Matched interest rate swaps | Accrued interest and other liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Derivative, Notional Amount | 2,430,587 | 2,300,336
Derivative Asset | 7,508 | 107
Estimate Fair Value Loss | (84,701) | (184,884)
Fair Value Hedges | Matched interest rate swaps | Accrued interest and other assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivative, Notional Amount | 2,430,587 | 2,300,336
Derivative Asset | 84,694 | 184,777
Estimate Fair Value Loss | (7,508) | (107)
Foreign Exchange [Member] | Matched interest rate swaps | Accrued interest and other liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Derivative, Notional Amount | 6,399,432 | 3,637,509
Derivative Asset | 52,780 | 27,249
Estimate Fair Value Loss | (67,988) | (60,366)
Foreign Exchange [Member] | Matched interest rate swaps | Accrued interest and other assets |  |
Derivatives, Fair Value [Line Items] |  |
Derivative, Notional Amount | 6,423,085 | 3,637,509
Derivative Asset | 67,988 | 60,366
Estimate Fair Value Loss | (52,780) | (27,249)
Derivative [Member] | Accrued interest and other liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Derivative, Notional Amount | 2,400,000 | 2,300,000
Estimate Fair Value Loss | $ (74,200) | $ (182,300)

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