Stock-Based Compensation Expense (Tables)

6 Months Ended

Jun. 30, 2023

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs

Stock-based compensation expense before income tax expense for the three and six-month periods ended June 30, 2023 and 2022 consisted of the following (in thousands):

	Three Months Ended				Six Months Ended
	June 30,				June 30,
	2023		2022		2023		2022
Cost of sales
Nonqualified stock options	$	432	$	509	$	873	$	1,097
Research and development
Nonqualified stock options		413		450		841		936
Selling, general and administrative
Nonqualified stock options		1,851		1,207		3,221		3,131
Performance-based restricted stock units		1,817		1,257		2,632		2,072
Restricted stock units		467		529		911		928
Cash-settled performance-based share-based awards ("Liability Awards")		600		499		1,071		929
Total selling, general and administrative		4,735		3,492		7,835		7,060
Stock-based compensation expense before taxes	$	5,580	$	4,451	$	9,549	$	9,093

Employee Stock Option [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

	Six Months Ended
	June 30,
	2023	2022
Risk-free interest rate	3.6% - 4.5%	1.4% - 3.0%
Expected option term	4.0 years	4.0 years
Expected dividend yield	—	—
Expected price volatility	46.7% - 47.1%	46.2% - 47.0%

Stock-Settled Performance-Based Restricted Stock Units

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

	Six Months Ended
	June 30,
	2023	2022
Risk-free interest rate	3.9% - 4.6%	1.6%
Performance period	2.8 years	2.8 years
Expected dividend yield	—	—
Expected price volatility	31.4% - 32.6%	42.6%