XML 109 R97.htm IDEA: XBRL DOCUMENT v3.4.0.3
Derivative Financial Instruments - Additional Information (Details)
3 Months Ended 12 Months Ended
Mar. 31, 2016
USD ($)
Contract
Mar. 31, 2015
USD ($)
Dec. 31, 2015
USD ($)
Contract
Apr. 04, 2013
USD ($)
Designated as Hedging Instrument [Member]        
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]        
Accumulated net, after tax (loss) gain included in other comprehensive loss $ (820,000) $ (608,000)    
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member]        
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]        
Forward interest rate swap contract on junior subordinated debentures       $ 60,000,000
Period for which cash flow hedges will be used to hedge quarterly interest payments 5 years      
Derivative inception date Dec. 31, 2014      
Derivative maturity date Dec. 31, 2019      
Description of variable rate basis for derivative three-month LIBOR      
Ineffectiveness related to interest rate swap designated as a cash flow hedge $ 0 0    
Accumulated net, after tax (loss) gain included in other comprehensive loss $ (881,000)   $ (160,000)  
The period over which OCI will be reclassified as interest expense 12 months      
Estimated amount to be reclassified as an increase to interest expense $ 563,000      
Designated as Hedging Instrument [Member] | Interest Rate Swap [Member] | Three-month LIBOR [Member]        
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]        
Swap fixed interest rate to be paid 1.66%      
Derivatives not Designated as Hedging Instruments [Member]        
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]        
Forward interest rate swap contract on junior subordinated debentures $ 324,000,000   $ 264,500,000  
Net positive ineffectiveness on MSR fair value $ 413,000 $ 1,300,000    
Derivatives not Designated as Hedging Instruments [Member] | Beneficiary [Member]        
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]        
Number of risk participation agreements | Contract 2   2  
Aggregate notional amount of credit risk participation agreements $ 14,600,000   $ 14,800,000  
Derivatives not Designated as Hedging Instruments [Member] | Guarantor [Member]        
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]        
Number of risk participation agreements | Contract 1   1  
Aggregate notional amount of credit risk participation agreements $ 5,900,000   $ 5,900,000  
Derivatives not Designated as Hedging Instruments [Member] | Interest Rate Swap [Member]        
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]        
Forward interest rate swap contract on junior subordinated debentures 356,600,000   359,300,000  
Termination value of derivatives 6,100,000   2,600,000  
Collateral Posted 4,800,000      
Derivatives not Designated as Hedging Instruments [Member] | Forward Contracts [Member]        
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]        
Off-balance sheet obligations 279,600,000   190,500,000  
Valuation adjustment (2,000,000)   262,000  
Derivatives not Designated as Hedging Instruments [Member] | Interest Rate Lock Commitments [Member]        
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]        
Off-balance sheet obligations 184,800,000   108,100,000  
Valuation adjustment $ 3,300,000   $ 1,100,000