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Restructuring Charges (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jan. 30, 2018 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 8,821	$ 2,217	$ 0
2018 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges		1,200
Assets held-for-sale		$ 3,500
Restructuring and Related Cost, Positions Eliminated [Abstract]
Restructuring, number of positions eliminated		50
2018 Plan | Employee severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 2,200
2018 Plan | Other | Employee severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges		2,000
2018 Plan | Corporate | Employee severance
Restructuring Cost and Reserve [Line Items]
Restructuring charges		$ 200
2019 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring accrual	5,000
Company estimate of the aggregate restructuring cost	$ 8,800
Restructuring and Related Cost, Positions Eliminated [Abstract]
Restructuring, number of positions eliminated	80
Minimum | 2018 Plan
Restructuring Cost and Reserve [Line Items]
Company estimate of the aggregate restructuring cost				$ 2,000
Maximum | 2018 Plan
Restructuring Cost and Reserve [Line Items]
Company estimate of the aggregate restructuring cost				$ 5,000

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Amount of assets held-for-sale that are not part of a disposal group, expected to be sold within a year or the normal operating cycle, if longer.

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Amount expected to be recognized in earnings for the specified restructuring cost.

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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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