XML 79 R69.htm IDEA: XBRL DOCUMENT v3.22.1
Stock-Based Compensation - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2022
Mar. 31, 2021
Stock-Based Compensation    
Share-based compensation, remaining shares available for issuance (in shares) 3,738,692  
Engineering, Selling and Administrative Expense    
Stock-Based Compensation    
Stock-based compensation expense (in dollars) $ 3.1 $ 2.5
Director    
Stock-Based Compensation    
Number of share options granted during the period (in shares) 56,640 56,672
Restricted Stock Units    
Stock-Based Compensation    
Granted (in shares) 321,983 316,974
Performance Shares    
Stock-Based Compensation    
Granted (in shares) 198,334 203,697
2013 Omnibus Plan    
Stock-Based Compensation    
Share-based compensation, shares authorized (in shares) 7,477,395  
Performance Shares 2022 | Performance Shares    
Stock-Based Compensation    
Percentage of shares paid based on total shareholder return relative to peer group (as a percent) 60.00%  
Percentage of shares paid based on adjusted EBITDA (as a percent) 40.00%  
Increase decrease in percentage of shares paid based on total shareholder return relative to defined peer group 20.00%  
Performance period (in years) 3 years  
Performance Shares 2020 | Performance Shares    
Stock-Based Compensation    
Percentage of shares paid based on total shareholder return relative to peer group (as a percent) 200.00%  
Performance period (in years)   3 years
Performance Shares 2021 | Performance Shares    
Stock-Based Compensation    
Percentage of shares paid based on total shareholder return relative to peer group (as a percent) 60.00%  
Percentage of shares paid based on adjusted EBITDA (as a percent) 40.00%  
Increase decrease in percentage of shares paid based on total shareholder return relative to defined peer group 20.00%  
Performance period (in years) 3 years  
Percentage of shares of other than options granted during the period 200.00%