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Restructuring and Asset Impairment - Restructuring Accrual Activity for Given Years (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2019 USD ($)
2019 Actions
Restructuring Reserve [Roll Forward]
Liability, beginning balance	$ 0
Current year charges	6,389
Cash receipts/(payments)	(3,377)
Asset write downs/disposals	(312)
Foreign currency translation	(1)
Liability, ending balance	2,699
2018 Actions
Restructuring Reserve [Roll Forward]
Liability, beginning balance	3,373
Current year charges	4,046
Cash receipts/(payments)	(3,516)
Asset write downs/disposals	(1,742)
Foreign currency translation	4
Liability, ending balance	2,165
Severance and Termination Benefits | 2019 Actions
Restructuring Reserve [Roll Forward]
Liability, beginning balance	0
Current year charges	5,478
Cash receipts/(payments)	(3,165)
Asset write downs/disposals	0
Foreign currency translation	(1)
Liability, ending balance	2,312
Severance and Termination Benefits | 2018 Actions
Restructuring Reserve [Roll Forward]
Liability, beginning balance	3,194
Current year charges	811
Cash receipts/(payments)	(1,961)
Asset write downs/disposals	0
Foreign currency translation	1
Liability, ending balance	2,045
Asset Impairment / Disposal of Assets | 2019 Actions
Restructuring Reserve [Roll Forward]
Liability, beginning balance	0
Current year charges	312
Cash receipts/(payments)	0
Asset write downs/disposals	(312)
Foreign currency translation	0
Liability, ending balance	0
Asset Impairment / Disposal of Assets | 2018 Actions
Restructuring Reserve [Roll Forward]
Liability, beginning balance	0
Current year charges	1,320
Cash receipts/(payments)	422
Asset write downs/disposals	(1,742)
Foreign currency translation	0
Liability, ending balance	0
Other Costs | 2019 Actions
Restructuring Reserve [Roll Forward]
Liability, beginning balance	0
Current year charges	599
Cash receipts/(payments)	(212)
Asset write downs/disposals	0
Foreign currency translation	0
Liability, ending balance	387
Other Costs | 2018 Actions
Restructuring Reserve [Roll Forward]
Liability, beginning balance	179
Current year charges	1,915
Cash receipts/(payments)	(1,977)
Asset write downs/disposals	0
Foreign currency translation	3
Liability, ending balance	$ 120

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount as of the balance sheet date of known and estimated obligations associated with exit from or disposal of business activities or restructurings pursuant to a duly authorized plan, which are expected to be paid in the next twelve months or in the normal operating cycle if longer. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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Amount of decrease in the reserve for full or partial settlement through consideration other than cash.

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Amount of foreign currency translation gain (loss) which decreases (increases) the restructuring reserve.

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