Discontinued Operations - Summary of Depreciation, Amortization and Significant Operating and Investing Non-cash Items of the Discontinued Operations (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Discontinued Operation Alternative Cash Flow Information [Abstract]
Impairment of goodwill and intangible assets				$ 199,500
Depreciation and amortization		$ 10,509		23,242
Capital expenditures on discontinued operations		2,132		3,814
Deferred income taxes (benefits)	$ (142)	(6,077)	$ (419)	(24,357)
Share-based compensation on discontinued operations		$ 809		$ 747