XML 98 R85.htm IDEA: XBRL DOCUMENT v3.22.0.1
Stock-based Compensation - Narrative (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 3 Months Ended 12 Months Ended
Jan. 31, 2020
Mar. 31, 2021
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Unrecognized compensation expense     $ 17.8 $ 20.0    
Excess tax benefits from share based compensation     $ 2.3 $ 5.2 $ (0.1)  
Maximum percentage of common stock outstanding allowed for awards (as a percent)     10.00%      
Options granted (in shares)     262,097 1,449,779 0  
Number of shares outstanding which vested (in shares)     1,556,486 2,249,611 1,228,399 3,832,424
Fair value of vested options     $ 0.3 $ 0.4 $ 1.2  
Weighted-average exercise price of non-vested awards (in usd per share)     $ 10.98 $ 8.87    
Weighted-average remaining contractual term of outstanding awards (in years)     7 years 6 months 6 years 6 months    
Intrinsic value of options exercised     $ 5.2 $ 2.2 20.7  
Intrinsic value of options outstanding     $ 4.0      
Key Employees            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Number of shares outstanding which vested (in shares)     145,555 216,575    
Weighted-average remaining contractual term (in years)     3 years 6 months 1 year 7 months 6 days    
Class A-1 Common Stock            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Options granted (in shares)   262,097 6,700,000      
Options            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Stock option compensation expense     $ 6.4 $ 5.5 $ 2.2  
Vesting period (in years)     4 years   0 years  
Percentage of fair market value of common stock (not less than) (as a percent)     100.00%      
Award termination period (in years)     10 years      
Options | Long Term Incentive Plan            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting period (in years) 10 years   4 years      
Options | Class A-1 Common Stock            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Common stock, number of shares authorized (in shares) 6,000,000          
Options | Minimum            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting period (in years)       4 years 3 years  
Options | Maximum            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting period (in years)       5 years 5 years  
Restricted Stock Units (RSUs)            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Estimated grant date fair value of options and RSUs granted during period     $ 1.8      
Restricted stock units granted (in shares)     558,193 1,665,968    
Restricted Stock Units (RSUs) | Minimum | Employee            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting period (in years)     4 years      
Restricted Stock Units (RSUs) | Maximum | Employee            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting period (in years)     5 years      
Restricted Stock Units (RSUs) | Maximum | Director            
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]            
Vesting period (in years)     1 year