Derivatives - Trading and Non-hedging Activities (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Trading Activity, Gains and Losses, Net [Line Items]    
Derivative, Notional Amount $ 60,018 $ 125,000
Net Gain (Loss) on Trading Activities [Member]
   
Trading Activity, Gains and Losses, Net [Line Items]    
Derivative, Notional Amount 60,018 125,000
Fair Value 473 (127)
Net Gain (Loss) 2,659 (6,370)
Interest rate swaps | Net Gain (Loss) on Trading Activities [Member]
   
Trading Activity, Gains and Losses, Net [Line Items]    
Derivative, Notional Amount   0
Fair Value   0
Net Gain (Loss)   (60)
Forward contracts
   
Trading Activity, Gains and Losses, Net [Line Items]    
Derivative, Notional Amount 45,000 125,000
Forward contracts | Hedged Item Mortgage Servicing Right [Member]
   
Trading Activity, Gains and Losses, Net [Line Items]    
Derivative, Notional Amount   50,000
Forward contracts | Hedged Item Mortgage Warehousing Line [Member]
   
Trading Activity, Gains and Losses, Net [Line Items]    
Derivative, Notional Amount 45,000 75,000
Forward contracts | Net Gain (Loss) on Trading Activities [Member]
   
Trading Activity, Gains and Losses, Net [Line Items]    
Derivative, Notional Amount 45,000 125,000
Fair Value 286 (127)
Net Gain (Loss) 2,472 (6,310)
Forward contracts | Net Gain (Loss) on Trading Activities [Member] | Hedged Item Mortgage Servicing Right [Member]
   
Trading Activity, Gains and Losses, Net [Line Items]    
Net Gain (Loss) 2,300 600
Interest Rate Lock Commitment [Member]
   
Trading Activity, Gains and Losses, Net [Line Items]    
Derivative, Notional Amount 15,018 0
Interest Rate Lock Commitment [Member] | Net Gain (Loss) on Trading Activities [Member]
   
Trading Activity, Gains and Losses, Net [Line Items]    
Derivative, Notional Amount 15,018  
Fair Value 187  
Net Gain (Loss) $ 187