Supplemental Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Asset Impairment Charges	$ 0	$ 18,840	$ 875	$ 19,001
Goodwill impairment		13,382		13,382
Income tax expense (benefit)	1,387	(7,923)	2,689	5,577
Income (loss) before income taxes and equity in earnings of non-consolidated affiliates	$ 15,875	$ (4,619)	$ 27,171	$ 10,674
Effective tax rate (percent)	8.70%	171.50%	9.90%	52.20%