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Stock-Based Compensation (Tables)

6 Months Ended

Jun. 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 Earnings related to stock-based compensation plans:

	Three Months Ended				Six Months Ended
	June 30,		June 30,		June 30,		June 30,
	2021		2020		2021		2020
Service-based RSUs	$	738	$	779	$	1,425	$	1,359
Performance-based RSUs		1,066		19		1,559		(349	)
Cash-settled RSUs		99		19		138		35
Total	$	1,903	$	817	$	3,122	$	1,045
Income tax benefit		438		189		718		240
Net expense	$	1,465	$	628	$	2,404	$	805

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
	June 30, 2021		Period (years)
Service-based RSUs	$	2,564		1.43
Performance-based RSUs		3,692		1.98
Total	$	6,256		1.75

Summary of Status of Plans

The following table summarizes the status of these plans as of June 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 awards outstanding		645,035		35,100		45,200		14,545		4,722
RSUs and cash settled awards vested and released		116,967		—		—		—		—
Awards available for grant		1,737,998		—		—		—		—

Summary of Service-Based Restricted Stock Units

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

	Units			Weighted Average Grant Date Fair Value
Outstanding at December 31, 2020		367,428		$	21.28
Granted		65,950			32.80
Vested and released		(151,280	)		20.88
Forfeited		(7,889	)		27.27
Outstanding at June 30, 2021		274,209		$	24.11
Releasable at June 30, 2021		116,767		$	15.83

Summary of Performance and Market Based RSUs

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

	Units			Weighted Average Grant Date Fair Value
Outstanding at December 31, 2020		225,559		$	28.97
Granted		81,622			34.38
Attained by performance		18,107			28.33
Released		(53,137	)		28.33
Forfeited		(25,872	)		26.82
Outstanding at June 30, 2021		246,279		$	31.08
Releasable at June 30, 2021		—		$	—