Amount after tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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Name:	us-gaap_DiscontinuedOperationGainLossOnDisposalOfDiscontinuedOperationNetOfTax
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Discontinued Operations (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
Discontinued Operations (Details) - USD ($) $ in Thousands	Nov. 01, 2018	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gain (loss) on sale of discontinued operations, net of tax		$ 0	$ (11)	$ 0	$ (1,401)
Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total cash consideration	$ 122,500
Gain (loss) on sale of discontinued operations, net of tax	$ 13,700		$ 0		$ (1,400)