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Equity Awards - Stock Options Narrative (Details) (Stock Options [Member], USD $)
In Millions, except Share data, unless otherwise specified
6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Stock Options [Member]
   
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Number of options granted 0  
Exercisable stock options 413,807  
Stock Options Vested 1,422  
Fair value of exercisable/vested stock options $ 0.1 $ 0.4
Stock-based compensation expense $ 0 $ 0