Restructuring - Restructuring Accruals (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Restructuring Reserve [Roll Forward]
Balance at January 1, 2020			$ 6,110
Restructuring expenses	$ 3,841	$ 2,126	3,841	$ 2,126
Payments, utilization and other			(5,499)
Balance at June 30, 2020	$ 4,452		$ 4,452

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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