Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019	Dec. 31, 2019
Income Tax [Line Items]
Income tax benefit	$ 2,188	$ 4,778
Income (loss) from continuing operations before income taxes	(41,996)	$ 3,212
Discrete income tax benefit from AMT credit	2,123
Increase (decrease) in deferred tax asset valuation allowance	13,187
Prepaid Expenses and Other Current Assets
Income Tax [Line Items]
AMT credit	$ 67,862		$ 33,065