Asset Write-Downs and Other Charges and Credits (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Restructuring and Related Activities [Abstract]
Acquisition and related integration costs	$ 16,736	$ 332	$ 23,004	$ 332
Restructuring costs	$ 27	$ 863	$ 1,922	$ 7,000

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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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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