Pension Plans and Other Post Retirement Benefits - Anticipated Pension Payments Under Pension Plans (Details) - Pension Plan $ in Thousands	Jun. 30, 2018 USD ($)
CDT defined benefit plan
Assumptions:
2019	$ 655
2020	700
2021	800
2022	890
2023	999
2024 to 2028	6,008
Total	10,052
GXS GER defined benefit plan
Assumptions:
2019	1,027
2020	1,032
2021	1,061
2022	1,068
2023	1,071
2024 to 2028	5,506
Total	10,765
GXS PHP defined benefit plan
Assumptions:
2019	138
2020	104
2021	144
2022	330
2023	198
2024 to 2028	1,913
Total	$ 2,827

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Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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Amount of benefits for defined benefit plan expected to be paid in next fiscal year following latest fiscal year.

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Amount of benefits for defined benefit plan expected to be paid in second fiscal year following latest fiscal year.

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