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Stock-Based Compensation (Tables)

9 Months Ended

Sep. 30, 2021

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

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

	Three months ended				Nine months ended
	September 30,		September 30,		September 30,		September 30,
	2021		2020		2021		2020
Service-based RSUs	$	588	$	580	$	2,013	$	1,939
Performance-based RSUs		383		472		1,942		123
Cash-settled RSUs		16		67		151		102
Total	$	987	$	1,119	$	4,106	$	2,164
Income tax benefit		227		257		945		497
Net expense	$	760	$	862	$	3,161	$	1,667

Summary of Unrecognized Compensation Expense related to Non-Vested RSUs

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, 2021		Period (years)
Service-based RSUs	$	1,818		1.38
Performance-based RSUs		2,988		1.80
Total	$	4,806		1.64

Summary of Status of Plans

The following table summarizes the status of these plans as of September 30, 2021:

	2018 Plan		2014 Plan		2009 Plan		2004 Plan		Directors' Plan
Awards originally available		2,500,000		1,500,000		3,400,000		6,500,000	N/A
Maximum potential RSU and cash settled awards outstanding		611,278		35,100		45,200		14,545		4,722
Maximum potential awards outstanding		611,278		35,100		45,200		14,545		4,722
RSUs and cash settled awards vested and released		117,633		—		—		—		—
Awards available for grant		1,771,089		—		—		—		—

Summary of Service-Based Restricted Stock Units

The following table summarizes the service-based RSU activity for the nine months ended September 30, 2021:

	Units			Weighted Average Grant Date Fair Value
Outstanding at December 31, 2020		367,428		$	21.28
Granted		68,065			32.93
Vested and released		(151,946	)		20.91
Forfeited		(15,506	)		29.17
Outstanding at September 30, 2021		268,041		$	24.00
Releasable at September 30, 2021		116,933		$	15.86

Summary of Performance and Market Based RSUs

The following table summarizes the performance and market-based RSU activity for the nine months ended September 30, 2021:

	Units			Weighted Average Grant Date Fair Value
Outstanding at December 31, 2020		225,559		$	28.97
Granted		83,237			34.44
Attained by performance		18,107			28.33
Released		(53,137	)		28.33
Forfeited		(43,099	)		27.71
Outstanding at September 30, 2021		230,667		$	31.28
Releasable at September 30, 2021		196,748		$	32.62