v2.4.0.8
Significant Customer Concentrations Significant Customer Concentrations (Details) (Customer Concentration Risk [Member])
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Total Operating Revenues [Member] | Walmart [Member]
       
Concentration Risk [Line Items]        
Concentration Risk, Percentage 65.00% 64.00% 66.00% 64.00%
Total Operating Revenues [Member] | Three Other Largest Retailer Distributors, as a Group [Member]
       
Concentration Risk [Line Items]        
Concentration Risk, Percentage 22.00% 21.00% 22.00% 21.00%
Total Operating Revenues, Excluding Stock-Based Retailer Incentive Compensation [Member] | Walmart [Member]
       
Concentration Risk [Line Items]        
Concentration Risk, Percentage 65.00% 65.00% 66.00% 65.00%
Total Operating Revenues, Excluding Stock-Based Retailer Incentive Compensation [Member] | Three Other Largest Retailer Distributors, as a Group [Member]
       
Concentration Risk [Line Items]        
Concentration Risk, Percentage 21.00% 21.00% 21.00% 20.00%
GPR Cards Activated (in units) [Member] | Four Largest Retailers Distributors [Member]
       
Concentration Risk [Line Items]        
Concentration Risk, Percentage 85.00% 88.00% 84.00% 88.00%
Sales of Cash Transfer Products (in units) [Member] | Four Largest Retailers Distributors [Member]
       
Concentration Risk [Line Items]        
Concentration Risk, Percentage 87.00% 88.00% 88.00% 89.00%
Settlement Assets [Member] | Walmart [Member]
       
Concentration Risk [Line Items]        
Concentration risk, percentage 41.00% 35.00% 41.00% 35.00%
Settlement Assets [Member] | Three Other Largest Retailer Distributors, as a Group [Member]
       
Concentration Risk [Line Items]        
Concentration risk, percentage 50.00% 38.00% 50.00% 38.00%