Equity-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2017

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Equity-Based Compensation Expense

The following table summarizes the compensation expense included in selling, general and administrative expenses in the Condensed Consolidated Statements of Earnings related to stock-based compensation plans:

	Three Months Ended				Nine Months Ended
	September 30,		September 30,		September 30,		September 30,
	2017		2016		2017		2016
Service-Based RSUs	$	415	$	523	$	1,430	$	1,471
Performance-Based RSUs	360		235		1,040		267
Cash-settled RSUs	52		34		44		21
Total	$	827	$	792	$	2,514	$	1,759
Income tax benefit	311		298		945		661
Net	$	516	$	494	$	1,569	$	1,098

Schedule of Unrecognized Equity-Based Compensation Expense

The following table summarizes the unrecognized compensation expense related to non-vested RSUs by type and the weighted-average period in which the expense is to be recognized:

	Unrecognized
	compensation		Weighted-
	expense at		average
	September 30, 2017		period
Service-Based RSUs	$	865
Performance-Based RSUs	2,552
Total	$	3,417	1.68

Summary of Status of Equity-Based Compensation Plans

The following table summarizes the status of these plans as of September 30, 2017:

	2014 Plan	2009 Plan	2004 Plan	Directors' Plan
Awards originally available	1,500,000	3,400,000	6,500,000	N/A
Performance-based options outstanding	295,000	—	—	—
Maximum potential RSU and cash settled awards outstanding	705,925	122,600	57,391	9,620
Maximum potential awards outstanding	1,000,925	122,600	57,391	9,620
RSUs and cash settled awards vested and released	173,554	—	—	—
Awards available for grant	325,521	—	—	—

Summary of Service-Based Restricted Stock Units

summarizes the service-based RSU activity as of and for the nine months ended September 30, 2017: 

	Units		Weighted Average Grant Date Fair Value
Outstanding at January 1, 2017	554,478		$	13.37
Granted	34,040		22.98
Vested and released	(199,251	)	13.79
Forfeited	(9,924	)	16.69
Outstanding at September 30, 2017	379,343		$	13.92
Releasable at September 30, 2017	226,811		$	11.38

Schedule of Components of Performance-Based RSU's

The following table summarizes the performance and market-based RSU activity as of and for the nine months ended September 30, 2017:

	Units		Weighted Average Grant Date Fair Value
Outstanding at January 1, 2017	201,900		$	16.48
Granted	123,919		23.83
Attained by performance	15,285		21.66
Released	(43,275	)	21.66
Forfeited	(26,524	)	22.56
Outstanding at September 30, 2017	271,305		$	18.77
Releasable at September 30, 2017	—		$	—

The following table summarizes each grant of performance awards outstanding at September 30, 2017.

Description	Grant Date	Vesting Year	Vesting Dependency	Target Units Outstanding	Maximum Number of Units to be Granted
2015 - 2017 Performance RSUs	February 5, 2015	2017	35% RTSR, 35% sales growth, 30% cash flow	62,000	124,000
2016 - 2018 Performance RSUs	February 16, 2016	2018	35% RTSR, 35% sales growth, 30% cash flow	92,840	185,680
2017 - 2019 Performance RSUs	February 9, 2017	2019	35% RTSR, 35% sales growth, 30% cash flow	71,796	143,592
2017 - 2019 Performance RSUs	February 9, 2017	2018 - 2020	Operating Income	40,669	40,669
Single Crystal Performance RSUs	March 31, 2016	2018	Various	4,000	8,000