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Goodwill And Other Intangible Assets Intangible Assets (Expected Future Amortization) (Details) (USD $)
In Thousands, unless otherwise specified
Sep. 30, 2013
Dec. 31, 2012
Finite-Lived Intangible Assets [Line Items]    
Intangible assets, net $ 83,307 $ 48,969
Retailer Relationships [Member]
   
Finite-Lived Intangible Assets [Line Items]    
Remainder of 2013 1,537  
2014 5,432  
2015 4,012  
2016 4,012  
2017 4,012  
2018 4,012  
Thereafter 14,096  
Intangible assets, net 37,113 41,826
Developed Technology [Member]
   
Finite-Lived Intangible Assets [Line Items]    
Remainder of 2013 1,700  
2014 6,800  
2015 6,800  
2016 6,800  
2017 6,800  
2018 3,967  
Thereafter 0  
Intangible assets, net 32,867 0
Other Intangible Assets [Member]
   
Finite-Lived Intangible Assets [Line Items]    
Remainder of 2013 615  
2014 2,454  
2015 2,419  
2016 2,307  
2017 2,285  
2018 1,664  
Thereafter 1,583  
Intangible assets, net $ 13,327 $ 7,143