Stockholders' Equity (Reclassification From Accumulated Other Comprehensive Income (Loss)) (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income tax benefit		$ 1,845	$ (50,383)	$ (21,316)
Net loss		(44,146)	(89,654)	(148,000)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Income (loss) before income taxes and income from equity method investees	[1]	(18,632)	3,423
Net income from discontinued operations, net of taxes	[2]			38,795
Income tax benefit	[3]	(4,540)	857
Net loss		(14,092)	2,566	$ 38,795
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) [Member] | Commodity Contracts [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Revenues	[4]	(60,261)	5,538
Cost of goods sold	[5]	$ 41,629	$ (2,115)

[1] Loss from continuing operations before income taxes and income from equity method investees

[2] Net income from discontinued operations, net of income taxes

[3] Income tax (expense) benefit

[4] Revenues

[5] Costs of goods sold