Equity Incentive Compensation Plans and Other Long-term Incentive Programs (Tables)

6 Months Ended

Jun. 30, 2019

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Non-Cash Stock-Based Compensation Cost Related to Equity Awards

The following table presents the long-term equity and cash incentive compensation related to awards for the periods indicated:



	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
	(in thousands)
Nonvested common stock ⁽¹⁾	$	1,533	$	1,520	$	3,329	$	2,850
Nonvested common stock units⁽¹⁾	318		277		612		447
Nonvested performance cash units ⁽²⁾⁽³⁾	445		451		1,077		378
Total	$	2,296	$	2,248	$	5,018	$	3,675


(1)	Unrecognized compensation expense as of June 30, 2019 was $10.1 million, which related to grants of nonvested shares of common stock that are expected to be recognized over a weighted-average period of 1.9 years.


(2)	The nonvested performance-based cash units are accounted for as liability awards with $1.4 million and $0.3 million in other noncurrent liabilities as of June 30, 2019 and December 31, 2018, respectively, in the Unaudited Consolidated Balance Sheets.

(3)

Liability awards are fair valued at each reporting date. The expense for the period will increase or decrease based on updated fair values of these awards at each reporting date.

Nonvested Equity Shares [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Nonvested Share Activity

A summary of the Company's nonvested common stock awards for the three and six months ended June 30, 2019 and 2018 is presented below:



	Three Months Ended June 30, 2019				Three Months Ended June 30, 2018
Nonvested Common Stock Awards	Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value
Outstanding at April 1,	3,431,780		$	3.90	2,657,535		$	5.14
Granted	6,000		2.66		221,025		7.08
Vested	(30,031	)	5.81		(15,724	)	5.45
Forfeited or expired	(1,615	)	7.14		(4,558	)	7.38
Outstanding at June 30,	3,406,134		3.88		2,858,278		5.28

	Six Months Ended June 30, 2019				Six Months Ended June 30, 2018
Nonvested Common Stock Awards	Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value
Outstanding at January 1,	2,912,166		$	5.27	1,394,868		$	7.00
Granted	1,841,700		2.64		1,017,448		5.45
Modified ⁽¹⁾	—		—		1,146,305		4.84
Vested	(1,329,630	)	5.20		(667,932	)	8.28
Forfeited or expired	(18,102	)	4.96		(32,411	)	6.73
Outstanding at June 30,	3,406,134		3.88		2,858,278		5.28

(1)

Nonvested Performance Cash Units

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Nonvested Performance-based Units Activity

A summary of the Company's nonvested performance-based cash unit awards for the three and six months ended June 30, 2019 and 2018 is presented below:



	Three Months Ended June 30, 2019				Three Months Ended June 30, 2018
Nonvested Performance-Based Cash Unit Awards	Units		Weighted Average Fair Value		Units		Weighted Average Fair Value
Outstanding at April 1,	2,868,634				796,423
Granted	—				49,833
Outstanding at June 30,	2,868,634		$	1.82	846,256		$	6.08

	Six Months Ended June 30, 2019				Six Months Ended June 30, 2018
Nonvested Performance-Based Cash Unit Awards	Units		Weighted Average Fair Value		Units		Weighted Average Fair Value
Outstanding at January 1,	909,585				1,548,083
Granted	2,026,521				846,256
Performance goal adjustment ⁽¹⁾	—				11,289
Modified ⁽²⁾	—				(1,211,478	)
Vested	—				(286,652	)
Forfeited or expired	(67,472	)			(61,242	)
Outstanding at June 30,	2,868,634		$	1.82	846,256		$	6.08


(1)	The 2015 Program vested at 104.1% in excess of target level and resulted in additional units vesting in March 2018. These units are included in the vested line item for the six months ended June 30, 2018.

(2)

Due to the closing of the Merger, the 2016 and 2017 Performance Cash Programs were converted from nonvested performance-based cash units to nonvested common stock awards, resulting in a decrease in nonvested performance-based cash units for the six months ended June 30, 2018. The 2016 Program awards were converted based on performance through March 19, 2018, which resulted in 89% of the units converting to nonvested common stock awards or a reduction of 65,173 units converting to nonvested common stock awards.

Director [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Nonvested Share Activity

A summary of the Company's nonvested common stock unit awards for the three and six months ended June 30, 2019 and 2018 is presented below:



	Three Months Ended June 30, 2019				Three Months Ended June 30, 2018
Nonvested Common Stock Unit Awards	Units		Weighted Average Grant Date Fair Value		Units		Weighted Average Grant Date Fair Value
Outstanding at April 1,	311,237		$	7.26	272,559		$	6.37
Granted	628,380		1.87		158,885		6.87
Vested	(143,514	)	5.77		(129,027	)	4.62
Outstanding at June 30,	796,103		3.27		302,417		7.37

	Six Months Ended June 30, 2019				Six Months Ended June 30, 2018
Nonvested Common Stock Unit Awards	Units		Weighted Average Grant Date Fair Value		Units		Weighted Average Grant Date Fair Value
Outstanding at January 1,	311,237		$	7.26	272,559		$	6.37
Granted	643,084		1.88		162,083		6.83
Vested	(158,218	)	5.44		(132,225	)	4.63
Outstanding at June 30,	796,103		3.27		302,417		7.37