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DERIVATIVES - Summary of Derivative Financial Instruments and Balances (Detail) - USD ($) $ in Thousands | Dec. 31, 2018 | Dec. 31, 2017
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Derivatives, Fair Value [Line Items] |  |
Interest-bearing deposit swap | $ 2,719,980 | $ 1,674,080
Derivative Asset | 29,189 | 12,682
Estimate Fair Value Loss | (29,188) | (12,687)
Fair Value Hedges | Matched interest rate swaps | Accrued interest and other liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Interest-bearing deposit swap | 1,359,990 | 837,040
Derivative Asset | 11,787 | 5,529
Estimate Fair Value Loss | (17,401) | (7,158)
Fair Value Hedges | Matched interest rate swaps | Accrued interest and other assets |  |
Derivatives, Fair Value [Line Items] |  |
Interest-bearing deposit swap | 1,359,990 | 837,040
Derivative Asset | 17,402 | 7,153
Estimate Fair Value Loss | $ (11,787) | $ (5,529)

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- Definition Aggregate notional amount specified by the derivative(s). Expressed as an absolute value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Article 12 -Section 13 -Sentence Column B + Details
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