Earnings Per Share - Summary (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Basic (a)
Net Loss	$ (210,741)	$ (176,296)
Weighted average number of common shares (in shares)	346,867,000	345,852,000
Basic net income (loss) per common share (USD per share)	$ (0.61)	$ (0.51)
Diluted (a)
Net Loss	$ (210,741)	$ (176,296)
Weighted average number of common shares (in shares)	346,867,000	345,852,000
Dilutive stock options and non-participating RSUs (in shares)	0	0
Weighted average number of common and potential common shares (in shares)	346,867,000	345,852,000
Diluted net income (loss) per common share (USD per share)	$ (0.61)	$ (0.51)
Nonqualified stock options and non-participating RSUs excluded from the calculation of diluted net income per common share (in shares)	0	0