Stock-Based Compensation and Stock Awards (Tables)

12 Months Ended

Dec. 31, 2021

Share-based Payment Arrangement [Abstract]

Summary of RSA Activity

The Company’s RSA activity and related information is presented below:

	Restricted Stock			Weighted- average Grant Date Fair Value
Unvested at December 31, 2020		480,776		$	30.20
Granted		276,783			23.96
Vested		(265,840	)		32.21
Forfeited		(26,684	)		27.78
Unvested at December 31, 2021		465,035		$	25.48

Schedule of Valuation Assumptions

Assumptions used in the Monte Carlo simulation are as follows:

	2021		2020		2019
Grant date	October 28, 2021		October 28, 2020		October 28, 2019
Performance period	October 1, 2021 to September 30, 2024		October 1, 2020 to September 30, 2023		October 1, 2019 to September 30, 2022
Volatility	56.1%		50.9%		38.8%
Risk-free interest rate	0.8%		0.2%		1.7%
Grant date price	$	23.54	$	23.86	$	44.53

Summary of PSA Activity

The Company’s Performance Unit activity and related information is presented below:

	Number of Performance Units			Weighted Average Grant Date Fair Value Per Unit
Unvested balance at December 31, 2020		330,967		$	42.10
Granted		96,111			29.88
Vested		(166,693	)		45.52
Forfeited		(36,011	)		38.92
Unvested balance at December 31, 2021		224,374		$	34.83

Schedule of DSA Activity

The Company's DSA activity for the year ended December 31, 2021 is presented below:

	DSA Number of Shares			Weighted Average Grant Date Fair Value Per Share
Unvested balance at December 31, 2020		62,196		$	30.18
Granted		52,455			25.61
Vested		(43,865	)		29.94
Unvested balance at December 31, 2021		70,786		$	26.94

Schedule of Information for Stock Option Plans

Equity Compensation Plan Information

The following table summarizes information for equity compensation plans in effect as of December 31, 2021 :

	Number of securities to be issued upon exercise of outstanding options, warrants and rights (1)		Weighted- average exercise price of outstanding options, warrants and rights (2)		Number of securities remaining available for future issuance under equity compensation plan
Plan category	(a)		(b)		(c)
Equity compensation plans approved by stockholders		224,374	$	34.83		1,549,243
Total		224,374	$	34.83		1,549,243

(1)Excludes 535,821 shares of unvested RSAs and DSAs, which were granted pursuant to the 2017 Plan and the 2004 Plan. Includes 224,,374 unvested Performance Units shown at 100% level of performance achievement.

(2)The weighted average exercise price does not take into account 224,374 unvested Performance Units, which do not have an exercise price.