Pension Plans and Other Post Retirement Benefits - Anticipated Pension Payments Under Pension Plans (Details) - Pension Plan $ in Thousands	Sep. 30, 2018 USD ($)
CDT defined benefit plan
Assumptions:
2019 (nine months ended June 30)	$ 497
2020	707
2021	808
2022	899
2023	1,010
2024 to 2028	6,071
Total	9,992
GXS GER defined benefit plan
Assumptions:
2019 (nine months ended June 30)	778
2020	1,043
2021	1,072
2022	1,080
2023	1,082
2024 to 2028	5,563
Total	10,618
GXS PHP defined benefit plan
Assumptions:
2019 (nine months ended June 30)	103
2020	115
2021	147
2022	292
2023	243
2024 to 2028	1,529
Total	$ 2,429

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- Definition

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://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

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- Definition

Amount of benefits for defined benefit plan expected to be paid in remainder of 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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