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Guarantees and Contingencies - Additional Information (Details) - USD ($)
$ in Millions
3 Months Ended
Jul. 17, 2015
Sep. 30, 2016
GXS Group, Inc.    
Loss Contingencies [Line Items]    
Tax contingency, foreign, amount   $ 2.7
Guarantor obligations, current carrying value   4.0
Loss contingency accrual   5.3
GXS India    
Loss Contingencies [Line Items]    
Loss contingency accrual   1.5
IRS Notice of Proposed Adjustment    
Loss Contingencies [Line Items]    
Expected federal taxes expense $ 280.0 80.0
Additional tax expense 20.00%  
Estimate of probably loss   $ 550.0