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Accounting for Stock Based Compensation (Tables)

12 Months Ended

Dec. 31, 2021

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Summary of Recognized and Unrecognized Stock-based Compensation Expense

The total recognized and unrecognized stock-based compensation expense is as follows:

Stock-Based Compensation Expense		2021				2020				2019				Unrecognized Stock-Based Compensation Expense at December 31, 2021
Options		$	482			$	836			$	885			$	-
Restricted Shares			1,198				1,495				1,600				309
Restricted Stock Units			4,594				3,137				1,751				7,423
Performance Based Units			5,535				3,361				2,017				8,572
Stock Appreciation Rights			2,721				5,494				2,336				-
Total Stock-Based Compensation		$	14,530			$	14,323			$	8,589			$	16,304

Summary of Stock Option Activity

The following table summarizes stock option activity during the years ended December 31, 2021, 2020 and 2019:

Options		Shares				Weighted-Average Exercise Price				Weighted-Average Remaining Contractual Term				Aggregate Intrinsic Value
Outstanding at December 31, 2018			1,653,000			$	38.53				4.28			$	3,610
Granted			—				—
Exercised			(428,250	)			38.66
Forfeited			(355,750	)			39.99
Outstanding at December 31, 2019			869,000			$	37.87				3.51			$	5,172
Granted			—				—
Exercised			(434,250	)			38.12
Forfeited			(6,750	)			38.05
Outstanding at December 31, 2020			428,000			$	37.61				3.20			$	11,815
Granted			—				—
Exercised			(215,250	)			38.46
Forfeited			(6,000	)			38.05
Outstanding at December 31, 2021			206,750			$	36.72				2.60			$	10,375
Exercisable at December 31, 2021			206,750			$	36.72				2.60			$	10,375

Restricted Stock Activity

The following table summarizes restricted stock activity during the years ended December 31, 2021, 2020 and 2019:

Unvested Restricted Shares		Shares				Weighted-Average Grant Date Fair Value
Outstanding at December 31, 2018			136,566			$	37.16
Granted			19,920				40.16
Vested			(91,566	)			37.09
Forfeited			(30,000	)			38.05
Outstanding at December 31, 2019			34,920			$	38.31
Granted			32,406				39.96
Vested			(32,420	)			38.33
Forfeited			—				—
Outstanding at December 31, 2020			34,906			$	39.82
Granted			13,742				70.18
Vested			(37,272	)			41.70
Forfeited			—				—
Outstanding at December 31, 2021			11,376			$	70.33

Summary of Performance Stock Unit Activity

The following table summarizes performance stock unit activity during the years ended December 31, 2021, 2020 and 2019:

Unvested Performance Stock Units		Relative TSR Target Shares				Weighted-Average Grant Date Fair Value				ROIC Target Shares				Weighted-Average Grant Date Fair Value				Adjusted EBITDA Target Shares				Weighted-Average Grant Date Fair Value				Total
Outstanding at December 31, 2018			64,785			$	62.45				64,792			$	42.53				—			$	—				129,577
Granted			56,380				57.39				56,375				41.51				—				—				112,755
Vested			—				—				—				—				—				—				—
Forfeited			(26,124	)			53.98				(26,128	)			39.41				—				—				(52,252	)
Outstanding at December 31, 2019			95,041			$	61.77				95,039			$	42.78				—			$	—				190,080
Granted			77,967				49.25				77,967				33.72				—				—				155,934
Vested			—				—				—				—				—				—				—
Forfeited			(15,090	)			56.84				(15,090	)			39.96				—				—				(30,180	)
Outstanding at December 31, 2020			157,918			$	56.06				157,916			$	38.58				—			$	—				315,834
Granted			20,626				118.08				40,580				78.98				39,930				79.49				101,136
Performance Adjustment			30,828				69.18				(30,830	)			44.92				—				—				(2	)
Vested			(61,656	)			69.18				—				—				—				—				(61,656	)
Forfeited			(16,148	)			61.10				(17,374	)			44.32				(2,454	)			79.49				(35,976	)
Outstanding at December 31, 2021			131,568			$	62.09				150,292			$	47.52				37,476			$	79.49				319,336

SARs Activity

The following table summarizes SARs activity during the years ended December 31, 2021, 2020 and 2019:

Stock Appreciation Rights		Shares				Weighted-Average Exercise Price				Weighted-Average Remaining Contractual Term				Aggregate Intrinsic Value
Outstanding at December 31, 2018			988,100			$	40.61				3.57			$	2,064
Granted			—				—
Exercised			(179,500	)			32.84
Forfeited			(254,350	)			42.63
Outstanding at December 31, 2019			554,250			$	39.41				2.84			$	2,981
Granted			—				—
Exercised			(342,150	)			38.22
Forfeited			(40,500	)			44.39
Outstanding at December 31, 2020			171,600			$	40.60				2.44			$	4,224
Granted			—				—
Exercised			(116,000	)			40.34
Forfeited			—				—
Outstanding at December 31, 2021			55,600			$	41.15				1.28			$	2,544
Exercisable at December 31, 2021			55,600			$	41.15				1.28			$	2,544

RSU

Share Based Compensation Arrangement By Share Based Payment Award [Line Items]

Restricted Stock Activity

The following table summarizes restricted stock unit activity during the years ended December 31, 2021, 2020 and 2019:

Unvested Restricted Stock Units		Time Vesting Shares				Weighted-Average Grant Date Fair Value
Outstanding at December 31, 2018			86,392			$	42.53
Granted			107,391				40.99
Vested			(23,956	)			42.62
Forfeited			(28,086	)			39.88
Outstanding at December 31, 2019			141,741			$	42.16
Granted			132,864				34.41
Vested			(50,953	)			42.13
Forfeited			(14,747	)			39.16
Outstanding at December 31, 2020			208,905			$	37.26
Granted			93,539				79.79
Vested			(88,296	)			38.49
Forfeited			(20,522	)			48.76
Outstanding at December 31, 2021			193,626			$	56.02

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