Equity-Based Compensation - Restricted Stock and RSU Awards (Details) - Restricted stock awards $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2016 USD ($) $ / shares shares
Number of shares
Total granted and unvested at the beginning of the period (in shares) | shares	6,529,459
Granted (in shares) | shares	1,241,710
Vested (in shares) | shares	(2,123,282)
Forfeited (in shares) | shares	(294,440)
Total awarded and unvested at the end of the period (in shares) | shares	5,353,447
Weighted average grant date fair value
Total granted and unvested at the beginning of the period (in dollars per share) | $ / shares	$ 33.48
Granted (in dollars per share) | $ / shares	27.06
Vested (in dollars per share) | $ / shares	34.95
Forfeited (in dollars per share) | $ / shares	26.89
Total awarded and unvested at the end of the period (in dollars per share) | $ / shares	$ 31.77
Aggregate intrinsic value
Total awarded and unvested at the beginning of the period | $	$ 142,342
Total awarded and unvested at the end of the period | $	126,609
Additional equity compensation to be recognized over the remaining period | $	$ 130,200
Weighted average period for recognizing unrecognized stock-based compensation expense	2 years