Pension Plans And Other Post Retirement Benefits (Schedule Of Weighted-Average Key Assumptions Used For Pension Plans) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Jun. 30, 2014
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Service Cost	$ 542		$ 1,355
Defined Benefit Plan, Interest Cost	456		1,410
Pension expense	1,220	353
CDT Defined Benefit Plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Salary increases	2.50%		2.50%
Pension increases	2.00%		2.00%
Discount rate	2.40%		2.90%
Defined Benefit Plan, Service Cost	122	113	458
Defined Benefit Plan, Interest Cost	199	217	877
Pension expense	430	399
CDT Defined Benefit Plan [Member] | To Age 30 [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee fluctuation rate	1.00%		1.00%
CDT Defined Benefit Plan [Member] | To Age 35 [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee fluctuation rate	0.50%		0.50%
CDT Defined Benefit Plan [Member] | To Age 40 [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee fluctuation rate	0.00%		0.00%
CDT Defined Benefit Plan [Member] | To Age 45 [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee fluctuation rate	0.50%		0.50%
CDT Defined Benefit Plan [Member] | To Age 50 [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee fluctuation rate	0.50%		0.50%
CDT Defined Benefit Plan [Member] | From Age 51 [Member]
Defined Benefit Plan Disclosure [Line Items]
Employee fluctuation rate	1.00%		1.00%
GXS Germany defined benefit plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Salary increases	2.00%		2.00%
Pension increases	2.00%		2.00%
Discount rate	2.50%		3.00%
Defined Benefit Plan, Service Cost	80	0	173
Defined Benefit Plan, Interest Cost	190	0	408
Pension expense	270	0
GXS Philippines defined benefit plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Salary increases	7.00%		7.00%
Pension increases	6.00%		6.00%
Discount rate	5.00%		5.15%
Normal retirement age	60 years		60 years
Defined Benefit Plan, Service Cost	340	0	724
Defined Benefit Plan, Interest Cost	67	0	125
Pension expense	$ 407	$ 0
Minimum [Member] | GXS Germany defined benefit plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Normal retirement age	65 years		65 years
Maximum [Member] | GXS Germany defined benefit plan [Member]
Defined Benefit Plan Disclosure [Line Items]
Normal retirement age	67 years		67 years