Pension Plans and Other Post Retirement Benefits - Anticipated Pension Payments Under Pension Plans (Details) - Pension Plan $ in Thousands	Mar. 31, 2019 USD ($)
CDT defined benefit plan
Assumptions:
2019 (three months ended June 30)	$ 159
2020	680
2021	778
2022	866
2023	971
2024 to 2028	5,840
Total	9,294
GXS GER defined benefit plan
Assumptions:
2019 (three months ended June 30)	250
2020	1,003
2021	1,031
2022	1,039
2023	1,041
2024 to 2028	5,352
Total	9,716
GXS PHP defined benefit plan
Assumptions:
2019 (three months ended June 30)	39
2020	153
2021	194
2022	301
2023	209
2024 to 2028	747
Total	$ 1,643

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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://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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Amount of benefits for defined benefit plan expected to be paid in remainder of fiscal year.

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