Equity-Based Compensation - PSU awards (Details) - 9 months ended Sep. 30, 2016 - USD ($) $ / shares in Units, $ in Millions	Total	Total
Performance share unit awards
Number of units
Granted (in shares)	790,890
Forfeited (in shares)	(5,589)
Total awarded and unvested at the end of the period (in shares)	785,301
Weighted average grant date fair value
Granted (in dollars per share)	$ 29.77
Forfeited (in dollars per share)	32.97
Total awarded and unvested at the end of the period (in dollars per share)	$ 29.75
Additional disclosures
Additional equity compensation to be recognized over the remaining period		$ 17.3
Weighted average period for recognizing unrecognized stock-based compensation expense	2 years 2 months 12 days
Weighted-average assumptions used to calculate fair value of performance share units granted
Dividend yield (as a percent)	0.00%
Volatility (as a percent)	45.00%
Risk-free interest rate (as a percent)	1.01%
Weighted average fair value of awards granted (in dollars per share)	$ 29.77
Weighted average fair value of awards (in dollars per share)	$ 29.75	$ 29.75
TSR performance share unit awards
Vesting period	3 years
TSR performance share unit awards | Maximum
Number of PSUs that may be earned as compared to the number of PSUs granted, as a percent	200.00%
TSR performance share unit awards | Minimum
Number of PSUs that may be earned as compared to the number of PSUs granted, as a percent	0.00%