Income Tax Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Income Tax Expense [Line Items]
Effective income tax rate	4.40%	19.80%	3.60%	61.70%
Income tax expense (benefit)	$ (261)	$ 4,808	$ (4,307)	$ (22,802)
Net income tax expense (benefit) resulted from impairment of intangibles			(5,500)
Income (loss) from continuing operations before income tax expense	$ (5,936)	$ 24,294	(118,320)	$ 36,982
Impairment charges and other charges			132,136
Income tax expense (benefit) related to unremitted earnings of foreign subsidiaries			26,700
Corporate Restructuring [Member]
Income Tax Expense [Line Items]
Income tax expense (benefit)			$ (58,500)