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Pension Plans and Other Post Retirement Benefits (Components of Net Pension Expense) (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2016
Mar. 31, 2015
Jun. 30, 2015
Defined Benefit Plan Disclosure [Line Items]          
Service cost     $ 1,835   $ 2,330
Interest cost     1,103   1,649
Net pension expense     3,459 $ 3,602  
Pension Plan          
Defined Benefit Plan Disclosure [Line Items]          
Service cost $ 585 $ 620 1,835 1,714  
Interest cost 371 368 1,103 1,265  
Amortization of actuarial gains and losses 113 93 336 307  
Net pension expense 1,069 1,081 3,274 3,286  
Pension Plan | CDT          
Defined Benefit Plan Disclosure [Line Items]          
Service cost 106 104 317 344 452
Interest cost 153 170 458 560 735
Amortization of actuarial gains and losses 107 93 319 307  
Net pension expense 366 367 1,094 1,211  
Pension Plan | GXS Germany          
Defined Benefit Plan Disclosure [Line Items]          
Service cost 86 100 274 257 360
Interest cost 140 125 405 497 625
Amortization of actuarial gains and losses 6 0 17 0  
Net pension expense 232 225 696 754  
Pension Plan | GXS Philippines          
Defined Benefit Plan Disclosure [Line Items]          
Service cost 393 416 1,244 1,113 1,518
Interest cost 78 73 240 208 $ 289
Amortization of actuarial gains and losses 0 0 0 0  
Net pension expense $ 471 $ 489 $ 1,484 $ 1,321