Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details 6)

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Income Taxes (Details 6) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
item
Dec. 31, 2012
Dec. 31, 2011
Reconciliation of unrecognized tax benefit      
Unrecognized tax benefits balance at beginning of year $ 1,097 $ 364 $ 415
Additions based on tax positions related to the current year 181 517 128
Additions based on tax positions related to prior years 1,045 474 55
Reductions for settlements with taxing authorities related to prior years (56)    
Reductions for lapses of statute of limitations (209) (258) (235)
Unrecognized tax benefits balance at end of year 2,058 1,097 364
Unrecognized tax benefits that would impact effective tax rate, if recognized 1,794    
Reasonably possible decrease in liability for unrecognized tax benefits in the next twelve months 292    
Number of states where the entity filed voluntary disclosure agreements 6    
Timeframe in which the voluntary disclosure agreements are expected to be settle 12 months    
Potential interest and penalties related to unrecognized tax benefits included in income tax expense 33 448 14
Accrued interest and penalties on unrecognized tax benefits $ 636 $ 642