v3.22.2.2
Stock-Based Compensation Expense (Tables)
9 Months Ended
Sep. 30, 2022
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 nine-month periods ended September 30, 2022 and 2021 consisted of the following (in thousands):

Three Months Ended

Nine Months Ended

September 30, 

September 30, 

    

2022

    

2021

    

2022

    

2021

Cost of sales

Nonqualified stock options

$

150

$

383

$

1,247

$

1,019

Research and development

 

 

Nonqualified stock options

476

 

355

1,412

 

910

Selling, general and administrative

 

 

Nonqualified stock options

2,166

 

2,071

5,297

 

4,512

Performance-based restricted stock units

647

1,193

2,719

2,896

Restricted stock units

454

409

1,382

1,149

Cash-settled performance-based share-based awards ("Liability Awards")

705

446

1,634

1,103

Total selling, general and administrative

3,972

4,119

11,032

9,660

Stock-based compensation expense before taxes

$

4,598

$

4,857

$

13,691

$

11,589

Stock Options  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

Nine Months Ended

September 30, 

2022

2021

Risk-free interest rate

    

1.4% - 3.4%

  

0.5% - 0.7%

Expected option term

 

4.0 years

 

4.0 years

Expected dividend yield

 

 

Expected price volatility

 

46.2% - 47.4%

  

46.3% - 46.7%

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

Nine Months Ended

September 30, 

2022

2021

Risk-free interest rate

    

1.6% - 2.7%

  

0.1% - 0.3%

Performance period

 

2.6 - 2.8 years

 

1.8 - 2.8 years

Expected dividend yield

 

 

Expected price volatility

 

38.5% - 46.2%

  

43.7% - 49.3%