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RISK MANAGEMENT AND DERIVATIVE INSTRUMENTS - Amount and Market Value of Mortgage Banking Derivatives (Detail) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Other Assets
    
Derivatives, Fair Value [Line Items]    
Notional Amount Assets $ 242,701 $ 421,347
Derivatives asset, fair values 6,955 5,493
Other Assets | Interest rate lock commitments
    
Derivatives, Fair Value [Line Items]    
Notional Amount Assets 192,701 129,010
Derivatives asset, fair values 6,850 3,962
Other Assets | Mandatory forward commitments
    
Derivatives, Fair Value [Line Items]    
Notional Amount Assets 0 242,337
Derivatives asset, fair values 0 1,305
Other Assets | Interest rate swap
    
Derivatives, Fair Value [Line Items]    
Notional Amount Assets 50,000 50,000
Derivatives asset, fair values 105 226
Accrued Expenses and Other Liabilities
    
Derivatives, Fair Value [Line Items]    
Notional Amount Liability 314,738 0
Derivatives liability, fair values 596 0
Accrued Expenses and Other Liabilities | Interest rate lock commitments
    
Derivatives, Fair Value [Line Items]    
Notional Amount Liability 7,738 0
Derivatives liability, fair values 325 0
Accrued Expenses and Other Liabilities | Mandatory forward commitments
    
Derivatives, Fair Value [Line Items]    
Notional Amount Liability 307,000 0
Derivatives liability, fair values $ 271 $ 0