Asset Write-Downs and Other Charges and Credits (Details) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2019	Mar. 31, 2018
Restructuring and Related Activities [Abstract]
Acquisition and related integration costs	$ 3,480	$ 0
Restructuring costs	$ 938	$ 3,807

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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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration