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DERIVATIVES - Additional Information (Detail) $ in Thousands | Dec. 31, 2019 USD ($) entity | Dec. 31, 2018 USD ($) entity
--- | --- | ---
Derivative [Line Items] |  |
Number of counterparties | entity | 18 | 13
Derivative Asset | $ 112,607 | $ 29,189
Derivative Assets (Liabilities), at Fair Value, Net | (9) |
Derivative Liability | 112,616 | 29,188
Derivative, Notional Amount | $ 7,586,618 | 2,719,980
Foreign Exchange [Member] |  |
Derivative [Line Items] |  |
Number of counterparties | entity | 6 |
Credit Risk Contract [Member] |  |
Derivative [Line Items] |  |
Outstanding liability from counterparty contracts | $ 200 | 100
Derivative, Notional Amount | 216,200 | 138,400
Interest Rate Lock Commitments [Member] |  |
Derivative [Line Items] |  |
Derivative, Notional Amount | 33,400 | 20,800
Other Credit Derivatives [Member] |  |
Derivative [Line Items] |  |
Outstanding liability from counterparty contracts |  | 0
Derivative, Notional Amount | 37,800 | 12,300
Credit Risk Derivative Assets, at Fair Value | 900 |
Derivative [Member] | Other Liabilities [Member] |  |
Derivative [Line Items] |  |
Derivative Liability | 67,500 | 4,900
Derivative, Notional Amount | 1,900,000 | $ 1,400,000
Derivative [Member] | Other Liabilities [Member] | Foreign Exchange [Member] |  |
Derivative [Line Items] |  |
Derivative Liability | 18,300 |
Derivative, Notional Amount | $ 1,900,000 |

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