Basic and Diluted Net Income (Loss) Per Share - Performance based stock (Details) - $ / shares shares in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016	Dec. 31, 2016
Antidilutive securities excluded from computation of earnings per share
Strike price of the warrants	$ 86.08
Dilutive securities excluded from computation of earnings per share	55,327	7,316
Class A common stock
Antidilutive securities excluded from computation of earnings per share
Strike price of the warrants	$ 0.01		$ 0.01
Anti-dilutive stock awards
Antidilutive securities excluded from computation of earnings per share
Dilutive securities excluded from computation of earnings per share	1,491	1,448
Performance based options
Antidilutive securities excluded from computation of earnings per share
Dilutive securities excluded from computation of earnings per share	6,489	4,459
Restricted Performance Units
Antidilutive securities excluded from computation of earnings per share
Dilutive securities excluded from computation of earnings per share	1,318	1,409
Common stock warrants
Antidilutive securities excluded from computation of earnings per share
Dilutive securities excluded from computation of earnings per share	46,029