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RISK MANAGEMENT AND DERIVATIVE INSTRUMENTS - Amount and Market Value of Mortgage Banking Derivatives (Detail) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Interest rate swaps on deposits and other borrowings |  |
Derivatives, Fair Value [Line Items] |  |
Derivatives asset, fair values | $ 918 |
Other Assets |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount Assets | 783,342 | $ 205,658
Derivatives asset, fair values | 9,042 | 6,379
Other Assets | Interest rate lock commitments |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount Assets | 262,135 | 179,923
Derivatives asset, fair values | 7,343 | 5,750
Other Assets | Mandatory forward commitments |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount Assets | 468,740 | 25,735
Derivatives asset, fair values | 1,130 | 629
Other Assets | Interest rate swaps on deposits and other borrowings |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount Assets | 25,000 | 0
Derivatives asset, fair values | 331 | 0
Other Assets | Interest rate swaps and cap on loans with customers |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount Assets | 27,467 | 0
Derivatives asset, fair values | 238 | 0
Accrued Expenses and Other Liabilities |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount Liability | 309,529 | 424,904
Derivatives liability, fair values | 1,067 | 3,235
Accrued Expenses and Other Liabilities | Interest rate lock commitments |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount Liability | 16,790 | 10,075
Derivatives liability, fair values | 88 | 197
Accrued Expenses and Other Liabilities | Mandatory forward commitments |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount Liability | 215,272 | 364,829
Derivatives liability, fair values | 300 | 2,803
Accrued Expenses and Other Liabilities | Interest rate swaps on deposits and other borrowings |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount Liability | 50,000 | 50,000
Derivatives liability, fair values | 441 | 235
Accrued Expenses and Other Liabilities | Interest rate swaps and caps on loans with correspondent bank |  |
Derivatives, Fair Value [Line Items] |  |
Notional Amount Liability | 27,467 | 0
Derivatives liability, fair values | $ 238 | $ 0

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