Employee Benefit Plans - Obligations and Funded Status (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	May 09, 2018
Amounts recognized in the Combined Balance Sheets consist of:
Other long-term liabilities				$ (6,100)
Pensions
Change in benefit obligation:
Defined benefit plan, benefit obligation, beginning of the period	$ 15,948	$ 3,881
Service cost	760	598	$ 106
Interest cost	588	455	137
Benefits paid	(328)	(370)
Actuarial (gain)/loss (1)	2,784	(530)
Liabilities assumed from the Separation	0	14,348
Amendments	250	0
Settlements and curtailments	(2,156)	(1,763)
Foreign currency translation and other	503	(671)
Defined benefit plan, benefit obligation, end of the period	18,349	15,948	3,881
Change in plan assets:
Defined benefit plan, plan assets, beginning of the period	15,130	3,993
Actual return on plan assets	1,888	(76)
Company contributions	1,486	4,740
Benefits paid	(328)	(370)
Assets assumed from the Separation	0	9,227
Settlements and curtailments	(2,156)	(1,763)
Foreign currency translation and other	467	(621)
Defined benefit plan, plan assets, end of the period	16,487	15,130	3,993
Funded (unfunded) status at December 31	(1,862)	(818)
Amounts recognized in the Combined Balance Sheets consist of:
Other non-current assets	18	146
Accrued compensation and employee benefits	0	0
Other long-term liabilities	(1,880)	(964)
Accumulated benefit obligations	16,235	14,076
Other post-retirement benefits
Change in benefit obligation:
Defined benefit plan, benefit obligation, beginning of the period	13,061	14,197
Service cost	0	0	0
Interest cost	503	448	621
Benefits paid	(1,751)	(1,022)
Actuarial (gain)/loss (1)	1,398	(562)
Liabilities assumed from the Separation	0	0
Amendments	0	0
Settlements and curtailments	0	0
Foreign currency translation and other	0	0
Defined benefit plan, benefit obligation, end of the period	13,211	13,061	14,197
Change in plan assets:
Defined benefit plan, plan assets, beginning of the period	0	0
Actual return on plan assets	0	0
Company contributions	1,751	1,022
Benefits paid	(1,751)	(1,022)
Assets assumed from the Separation	0	0
Settlements and curtailments	0	0
Foreign currency translation and other	0	0
Defined benefit plan, plan assets, end of the period	0	0	$ 0
Funded (unfunded) status at December 31	(13,211)	(13,061)
Amounts recognized in the Combined Balance Sheets consist of:
Other non-current assets	0	0
Accrued compensation and employee benefits	(1,592)	(1,598)
Other long-term liabilities	(11,619)	(11,463)
Accumulated benefit obligations	$ 13,211	$ 13,061