Selected Quarterly Financial Data (Unaudited) - Quarterly Financial Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Condensed Financial Statements, Captions
Revenues	$ 298	$ 23,995	$ 322,073
Income (Loss) From Operations	(87,090)	(47,800)	141,445
Net loss	$ (87,758)	$ (58,574)	$ 130,133
Weighted Average Number of Shares Issued, Basic	145,652	110,841	106,218
Weighted Average Number of Shares Outstanding, Diluted	145,652	110,841	116,747
Earnings Per Share, Diluted	$ (0.60)	$ (0.53)	$ 1.16
Earnings Per Share, Basic	$ (0.60)	$ (0.53)	$ 1.23