Statement - Condensed Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Equity-based compensation expense	$ 3,245	$ 2,545	$ 19,265	$ 34,596
Operating Expense [Member]
Equity-based compensation expense	976	505	5,830	10,371
Selling, General and Administrative Expenses [Member]
Equity-based compensation expense	$ 2,269	$ 2,040	$ 13,435	$ 24,225