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Income Taxes - Additional Information (Detail) (USD $)
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Real Estate Acquired Through Foreclosure Under Forward Purchase Agreements [Line Items]      
Income tax benefits associated with exercise of non-qualified stock options and restricted stock $ 100,000 $ 0 $ 200,000
Decrease in valuation allowance due to state net operating loss and tax credit carryforwards 200,000 1,100,000  
Changes in Valuation allowance related to NOL   600,000  
Changes in Valuation allowance related to state income tax carry forwards 500,000    
State net operating loss carryforwards 41,200,000    
State tax credit carryforwards 2,240,000 2,258,000  
Unrecognized tax benefits that would impact effective tax rate 3,200,000    
Accrued interest expense 200,000 200,000  
Liability for interest expense 300,000 300,000  
Liability for penalties 300,000 100,000  
Accrued interest penalty 200,000    
2014 Forecast [Member]
      
Real Estate Acquired Through Foreclosure Under Forward Purchase Agreements [Line Items]      
Reductions in the liability for unrecognized tax benefits due to expiration of statues of limitation $ 1,100,000