Net Income Per Share - Additional Information (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	May 01, 2013	Apr. 30, 2013
Schedule Of Earnings Per Share [Line Items]
Common stock, shares outstanding	46,198,283		46,198,283
Par value of common stock issued	$ 0.01		$ 0.01			$ 0.01
Exercise price of common stock					$ 16.67
Warrants outstanding	4,877,617		4,877,617
Earnings Per Share, Basic	$ (0.63)	$ (0.77)	$ (0.54)	$ (6.83)
Earnings Per Share, Diluted	$ (0.63)	$ (0.77)	$ (0.54)	$ (6.83)
Noncontrolling Interest, Change in Redemption Value	$ (1)		$ (14)
Net Income (Loss) Available to Common Stockholders, Basic	$ (29)	$ (35)	$ (25)	$ (315)
Common Stock [Member]
Schedule Of Earnings Per Share [Line Items]
Number of new common stock issued			389,144