Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Mar. 27, 2020	Dec. 31, 2019
Income Tax [Line Items]
Income tax benefit	$ 45		$ 3,102	$ 2,200	$ 8,880
Income (loss) from continuing operations before income taxes	(68,682)		$ (46,663)	(348,946)	$ (20,151)
Discrete income tax benefit from AMT credit		$ 2,123
Increase in deferred tax asset valuation allowance				92,804
AMT credit to be refunded during year						$ 68,252
Decrease in unrecognized tax benefits				23,800
Prepaid Expenses and Other Current Assets
Income Tax [Line Items]
AMT credit	$ 66,129			$ 66,129			$ 33,065