Quarterly report pursuant to Section 13 or 15(d)

Income Taxes (Details 2)

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Income Taxes (Details 2) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Income taxes    
Unrecognized tax benefits that would impact effective tax rate, if recognized $ 1,673  
Reasonably possible decrease in liability for unrecognized tax benefits in the next twelve months 200  
Accrued interest and penalties on unrecognized tax benefits 562 636
Accrued Expenses and Other Noncurrent Liabilities [Member]
   
Income taxes    
Liability for unrecognized tax benefits $ 2,426 $ 2,693