(Loss) Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Earnings Per Share [Abstract]
Net income	$ (1,444,479)	$ 249,681
Weighted-average common shares outstanding (in shares)	209,097,000	209,322,000
Dilutive effect of stock-based awards and stock options (in shares)	0	552,000
Diluted weighted-average shares outstanding (in shares)	209,097,000	209,874,000
Basic (loss) earnings per share (in dollars per share)	$ (6.91)	$ 1.19
Diluted (loss) earnings per share (in dollars per share)	$ (6.91)	$ 1.19
Antidilutive securities (in shares)	877,000	0