Equity-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2018

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Schedule of Time-Vesting and Performance Vesting Awards

The activity related to the Company’s time-vesting and performance-vesting awards during the six months ended June 30, 2018 is as follows: 

						Performance-Vesting Restricted Awards
	Time-Vesting Restricted Awards					Bonus Performance Restricted Awards					Long-Term Incentive Performance Restricted Awards					2.75x Performance Restricted shares
	Shares/Units			Weighted Average Grant Date Fair Value per Award		Shares/Units			Weighted Average Grant Date Fair Value per Award		Shares/Units			Weighted Average Grant Date Fair Value per Award		Shares			Weighted Average Grant Date Fair Value per Share
Outstanding at December 31, 2017		1,852,512		$	17.09		805,245		$	18.09		864,572		$	18.50		616,793		$	3.56
Granted		345,310		$	17.35		707,981		$	14.66		1,171,733		$	15.04		—			—
Vested		(416,121	)	$	18.00		(69,221	)	$	18.07		(9,010	)	$	18.79		—			—
Forfeited		(538,345	)	$	17.79		(798,368	)	$	17.82		(718,464	)	$	17.81		(616,793	)	$	3.56
Outstanding at June 30, 2018		1,243,356		$	16.56		645,637		$	14.66		1,308,831		$	15.78		—			—

Schedule of Activity Related to Stock Option Awards

The activity related to the Company’s stock option awards during the six months ended June 30, 2018 is as follows:

	Options			Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in years)		Aggregate Intrinsic Value       (in thousands)
Outstanding at December 31, 2017		2,923,448		$	18.78
Forfeited		(361,983	)	$	18.00
Expired		(1,493,409	)	$	19.46
Exercised		(64,590	)	$	18.34
Outstanding at June 30, 2018		1,003,466		$	18.07		7.31	$	3,762
Exercisable at June 30, 2018		578,604		$	18.32		7.19	$	2,025