Equity-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2018

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Activity Related to Restricted Stock and RSUs

The following table summarizes activity related to restricted stock and RSUs for the nine months ended September 30, 2018 and 2017.

	Restricted Stock & RSUs
	2018					2017
				Weighted					Weighted
				Average					Average
	Number of			Grant Date		Number of			Grant Date
	Shares			Fair Value		Shares			Fair Value
Unvested Balance at January 1,		9,357,999		$	30.15		8,504,190		$	26.70
Granted		3,221,367			54.39		3,140,934			37.07
Forfeited		(121,397	)		38.46		(75,433	)		30.74
Vested		(3,174,379	)		30.66		(2,118,588	)		26.96
Unvested Balance at September 30,		9,283,590		$	37.29		9,451,103		$	29.87

Schedule of Assumptions Used to Estimate the Fair Value of Stock Option Using the Black-Scholes Valuation model

The Company estimated the fair value of stock option awards at grant using the Black-Scholes valuation model with the following assumptions:

	Assumptions
Expected life (in years)		6
Weighted-average risk free interest rate		1.91	%
Expected volatility		35	%
Dividend yield		2.72	%
Weighted-average fair value at grant date	$	6.70

Summary of Activity Related to Stock Options

The following table summarizes activity related to stock options for the nine months ended September 30, 2018 and 2017.

	Stock Options Outstanding
	2018					2017
				Weighted					Weighted
				Average					Average
	Number			Exercise Price		Number			Exercise Price
	Outstanding			Per Share		Outstanding			Per Share
Outstanding at January 1,		2,436,232		$	17.95		2,822,728		$	17.95
Grants	—				—	—				—
Exercises		(348,280	)		17.95		(256,270	)		17.95
Forfeitures or expirations		(64,785	)		17.95		(81,019	)		17.95
Outstanding at September 30,		2,023,167		$	17.95		2,485,439		$	17.95