Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2022

Stock-Based Compensation

Summary of changes in, the Company's stock option awards

The Company has outstanding stock options assumed from acquisitions.  A summary of the status of, and changes in, the Company's stock option awards for the six months ended June 30, 2022, follows:

					Weighted-
			Weighted-		Average
			Average		Remaining
			Exercise		Contractual
	Shares		Price		Life
Options outstanding at December 31, 2021		31,386	$	23.53		4.88
Expired		(220)		23.53
Options outstanding at June 30, 2022		31,166	$	23.53		4.38
Options exercisable at June 30, 2022		31,166	$	23.53		4.38

Summary of changes in the Company's RSU, PSU, and DSU awards

A summary of changes in the Company’s RSU, PSU, and DSU awards for the six months ended June 30, 2022, is as follows:

	RSU Awards				PSU Awards				DSU Awards
			Weighted-				Weighted-				Weighted-
			Average				Average				Average
			Grant Date				Grant Date				Grant Date
	Shares		Fair Value		Shares (1)		Fair Value		Shares		Fair Value
Nonvested at December 31, 2021		1,147,927	$	23.97		113,915	$	22.86		34,135	$	24.59
Granted		156,483		25.79		195,240		25.79		32,658		25.79
Dividend equivalents earned		22,800		24.52		—		—		2,797		24.38
Vested		(136,084)		29.27		—		—		(39,065)		24.67
Forfeited		(23,966)		23.65		(2,339)		24.30		—		—
Nonvested at June 30, 2022		1,167,160	$	23.62		306,816	$	24.71		30,525	$	25.76
Vested and outstanding at June 30, 2022										115,208	$	22.80

(1) Shares for PSU awards represent target shares at grant date.

Schedule of Stock-based compensation expense

The Company recognized compensation expense related to nonvested RSU, PSU, and DSU awards, as well as the 2021 ESPP, as summarized in the table below (dollars in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021
Stock-based compensation expense
RSU awards	$	1,273	$	1,816	$	2,449	$	3,046
PSU awards		758		268		1,170		328
DSU awards		257		353		483		511
2021 ESPP		48		—		143		—
Total stock-based compensation expense	$	2,336	$	2,437	$	4,245	$	3,885

Schedule of Unamortized stock-based compensation expense

Unamortized compensation expense related to nonvested RSU, PSU, and DSU awards is summarized in the table below (dollars in thousands):

	As of
	June 30,			December 31,
	2022			2021
Unamortized stock-based compensation
RSU awards	$	11,273		$	10,204
PSU awards		4,973			1,547
DSU awards		568			209
Total unamortized stock-based compensation	$	16,814		$	11,960
Weighted average period over which expense is to be recognized		2.8	yrs		2.9	yrs

Schedule of shares remaining available for issuance pursuant to authorized plans

Shares remaining available for issuance pursuant to authorized stock-based compensation plans as of June 30, 2022, were as follows:

	Shares Remaining
	Available for Issuance
	Pursuant to the Plan
2020 Equity Plan		644,174
2021 Employee Stock Purchase Plan		530,570