Equity-Based Compensation - Schedule of Activity Related to Restricted Stock Awards/Units (Details) - $ / shares	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Restricted stock awards
Number of Shares
Nonvested at the beginning of the period (in shares)	5,780,239
Granted (in shares)	3,898,052
Vested (in shares)	(2,494,643)
Forfeited (in shares)	(1,061,890)
Nonvested at the end of the period (in shares)	6,121,758	5,780,239
Exercisable at the end of the period (in shares)	755,657
Weighted Average Grant Date Fair Value Per Share
Nonvested at the beginning of the period (in dollars per share)	$ 11.59
Granted (in dollars per share)	1.43
Vested (in dollars per share)	11.33
Forfeited (in dollars per share)	12.70
Nonvested at the end of the period (in dollars per share)	5.00	$ 11.59
Exercisable at the end of the period (in dollars per share	$ 6.73
Restricted stock units
Number of Shares
Granted (in shares)	3,491,352
Vested (in shares)	(596,823)	0
Forfeited (in shares)	(457,097)
Nonvested at the end of the period (in shares)	2,437,432
Exercisable at the end of the period (in shares)	358,606
Weighted Average Grant Date Fair Value Per Share
Granted (in dollars per share)	$ 2.44
Vested (in dollars per share)	2.44
Forfeited (in dollars per share)	2.44
Nonvested at the end of the period (in dollars per share)	2.44
Exercisable at the end of the period (in dollars per share	$ 2.44