Pension Plans and Other Post Retirement Benefits (Schedule of the Change in Benefit Obligation) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended	12 Months Ended
Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Jun. 30, 2015
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation—beginning of period			$ 55,536	$ 58,802	$ 58,802
Service cost			1,250		2,330
Interest cost			732		1,649
Benefits paid			(740)		(1,366)
Actuarial (gain) loss			(1,971)		4,578
Foreign exchange (gain) loss			(1,237)		(10,457)
Benefit obligation—end of period	$ 53,570		53,570		55,536
Less: Current portion	(1,348)		(1,348)		(1,375)
Non-current portion of benefit obligation	52,222		52,222		54,161
Pension Plan
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Service cost	613	$ 552	1,250	1,094
Interest cost	369	441	732	897
Pension Plan \| CDT
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation—beginning of period			26,091	29,344	29,344
Service cost	104	118	211	240	452
Interest cost	151	191	305	390	735
Benefits paid			(292)		(495)
Actuarial (gain) loss			363		1,676
Foreign exchange (gain) loss			(494)		(5,621)
Benefit obligation—end of period	26,184		26,184		26,091
Less: Current portion	(563)		(563)		(575)
Non-current portion of benefit obligation	25,621		25,621		25,516
Pension Plan \| GXS Germany
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation—beginning of period			22,420	24,182	24,182
Service cost	85	77	188	157	360
Interest cost	137	182	265	372	625
Benefits paid			(374)		(793)
Actuarial (gain) loss			(849)		2,701
Foreign exchange (gain) loss			(439)		(4,655)
Benefit obligation—end of period	21,211		21,211		22,420
Less: Current portion	(757)		(757)		(774)
Non-current portion of benefit obligation	20,454		20,454		21,646
Pension Plan \| GXS Philippines
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation—beginning of period			7,025	5,276	5,276
Service cost	424	357	851	697	1,518
Interest cost	81	$ 68	162	$ 135	289
Benefits paid			(74)		(78)
Actuarial (gain) loss			(1,485)		201
Foreign exchange (gain) loss			(304)		(181)
Benefit obligation—end of period	6,175		6,175		7,025
Less: Current portion	(28)		(28)		(26)
Non-current portion of benefit obligation	$ 6,147		$ 6,147		$ 6,999

This represents the current liability recognized in the balance sheet that is associated with the defined benefit pension plans.

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This represents the noncurrent liability recognized in the balance sheet that is associated with the defined benefit pension plans.

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Amount of gain (loss) related to change in benefit obligation resulting from changes in actuarial assumptions, for example, but not limited to, interest, mortality, employee turnover, salary, and temporary deviation from the substantive plan.

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1) For defined benefit pension plans, the benefit obligation is the projected benefit obligation, which is the actuarial present value as of a date of all benefits attributed by the pension benefit formula to employee service rendered prior to that date. 2) For other postretirement defined benefit plans, the benefit obligation is the accumulated postretirement benefit obligation, which is the actuarial present value of benefits attributed to employee service rendered to a particular date.

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The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Amount of gain (loss) from foreign currency exchange rate changes for benefit obligation for plans of a foreign operation whose functional currency is not the reporting currency.

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The increase in a defined benefit pension plan's projected benefit obligation or a defined benefit postretirement plan's accumulated postretirement benefit obligation due to the passage of time.

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The actuarial present value of benefits attributed by the pension benefit formula to services rendered by employees during the period. The portion of the expected postretirement benefit obligation attributed to employee service during the period. The service cost component is a portion of the benefit obligation and is unaffected by the funded status of the plan.

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