XML 77 R67.htm IDEA: XBRL DOCUMENT v3.23.1
Stock-Based Compensation - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
Stock-Based Compensation    
Share-based compensation, remaining shares available for issuance (in shares) 3,304,056  
Engineering, Selling and Administrative Expense    
Stock-Based Compensation    
Stock-based compensation expense (in dollars) $ 3.1 $ 3.1
Restricted Stock Units    
Stock-Based Compensation    
Granted (in shares) 478,411 378,623
Restricted Stock Units | Director    
Stock-Based Compensation    
Director Awards 77,576 56,640
Performance Shares    
Stock-Based Compensation    
Granted (in shares) 233,409 198,334
2013 Omnibus Plan    
Stock-Based Compensation    
Share-based compensation, shares authorized (in shares) 7,477,395  
Performance Shares 2023 | 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%  
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
Percentage of shares of other than options granted during the period   200.00%