Equity-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2019

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Equity compensation expense is included in operating expenses and in selling, general and administrative expenses in the accompanying unaudited condensed consolidated statements of comprehensive income (loss) as follows:

	For the Three Months Ended June 30,				For the Six Months Ended June 30,
	2019		2018		2019		2018
	(In thousands)
Equity compensation expense included in operating expenses	$	676	$	2,667	$	2,033	$	4,230
Equity compensation expense included in selling, general and administrative expenses		3,408		3,225		5,249		9,207
Total equity compensation expense	$	4,084	$	5,892	$	7,282	$	13,437

Schedule of Time-Vesting and Performance Vesting Restricted Share Awards

The activity related to the Company’s time-vesting and performance-vesting awards during the six months ended June 30, 2019 is as follows:

						Performance-Vesting Restricted Awards
	Time-Vesting Restricted Awards					Bonus Performance Restricted Awards					Long-Term Incentive Performance Restricted Awards
	Shares/Units			Weighted Average Grant Date Fair Value per Award		Units			Weighted Average Grant Date Fair Value per Award		Shares/Units			Weighted Average Grant Date Fair Value per Award
Outstanding at December 31, 2018		901,704		$	17.34		560,710		$	15.06		1,155,486		$	15.82
Granted		72,078		$	27.02		225,080		$	25.70		1,233,742		$	25.70
Vested		(144,340	)	$	18.75		(321,715	)	$	15.05		(32,233	)	$	15.36
Forfeited		(155,723	)	$	15.15		(259,814	)	$	15.93		(413,384	)	$	19.20
Outstanding at June 30, 2019		673,719		$	18.57		204,261		$	25.70		1,943,611		$	21.38

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, 2019 is as follows:

	Options			Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (in years)		Aggregate Intrinsic Value (in thousands)
Outstanding at December 31, 2018		764,577		$	18.05
Granted		430,390		$	25.70
Forfeited		(92,095	)	$	20.97
Expired		(8,593	)	$	18.52
Exercised		(131,176	)	$	17.80
Outstanding at June 30, 2019		963,103		$	21.22		7.67	$	9,417
Exercisable at June 30, 2019		464,385		$	18.38		6.21	$	5,859

Schedule of Stock Options Valuation Assumptions

The weighted average grant date fair value of stock options granted during the six months ended June 30, 2019 was $8.45. Key weighted-average assumptions utilized in the Black-Scholes Option Pricing Model for stock options granted during the six months ended June 30, 2019 were:

Risk-free interest rate	2.48	%
Expected volatility ^(a)	28.50	%
Expected dividend yield	0.00	%
Expected life (years) ^(b)	6.00

(a)	^{Due to the Company’s limited history as a public company, the volatility for the Company’s stock at the date of each grant was estimated using the average volatility calculated for a peer group, which is based upon daily price observations over the estimated term of options granted.}

(b)	The expected life was estimated using the simplified method, as the Company does not have sufficient historical exercise data due to the limited period of time its common stock has been publicly traded.