Retirement Plans - Schedule of Expected Benefit Payments (Details) $ in Thousands	Dec. 31, 2018 USD ($)
United States [Member]
2019	$ 14,500
2020	4,000
2021	4,400
2022	4,000
2023	4,300
2022-2026	17,300
Foreign Plan [Member]
2019	1,000
2020	1,000
2021	1,100
2022	1,100
2023	1,100
2022-2026	$ 5,600

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

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 next fiscal year following latest fiscal year.

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

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

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