XML 99 R81.htm IDEA: XBRL DOCUMENT v3.25.0.1
COMPENSATION ARRANGEMENTS - Additional Information (Details)
$ / shares in Units, $ in Millions
1 Months Ended 12 Months Ended
Dec. 31, 2024
USD ($)
shares
Oct. 14, 2024
hurdle
$ / shares
Jun. 12, 2024
hurdle
$ / shares
Mar. 30, 2023
$ / shares
shares
Oct. 31, 2024
USD ($)
Jun. 30, 2024
shares
Dec. 31, 2024
USD ($)
$ / shares
shares
Dec. 31, 2023
USD ($)
$ / shares
shares
Dec. 31, 2022
USD ($)
$ / shares
shares
Aug. 31, 2021
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Number of shares available for issuance (in shares) 100,500,000           100,500,000      
Exercised, aggregate intrinsic value | $             $ 0.0 $ 2.0 $ 0.0  
Total fair value of shares vested | $             $ 2.2 0.8 0.0  
Number of stock price hurdles | hurdle   4 4              
U.S. federal                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Defined contribution plan, employer matching contribution, percent of match             50.00%      
Defined contribution plan, employer matching contribution, percent of employees' eligible compensation             6.00%      
Defined contribution plan, vesting period             3 years      
Defined contribution plan, cost | $             $ 2.9 $ 1.9 $ 5.8  
ESPP                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Number of shares available for issuance (in shares) 1,000,000           1,000,000      
Shares issued under ESPP (in shares)             11,612 45,879 83,551  
RSUs                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Weighted-average grant date fair value, granted (in usd per share) | $ / shares             $ 10.56 $ 5.26 $ 16.95  
Stock issued during period, value, restricted stock award, gross | $             $ 8.1 $ 8.9 $ 15.6  
Unrecognized compensation costs | $ $ 5.4           $ 5.4      
Weighted-average period of recognition             1 year 3 months 10 days      
Vesting of RSUs and PSUs (in shares)             607,188      
Stock options                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Vesting period       2 years            
Unrecognized compensation costs | $ 0.4           $ 0.4      
Weighted-average period of recognition             3 months      
Stock option units issued (in shares)       3,500,000            
Stock option units per share value (in usd per share) | $ / shares       $ 0.95            
Stock option units strike price (in usd per share) | $ / shares       $ 6.00            
Expiration period       3 years            
Risk-free interest rate             4.10%      
Dividend yield             0.00%      
PSUs                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Maximum number of shares issuable (in shares)             24,626      
Weighted-average grant date fair value, granted (in usd per share) | $ / shares             $ 16.68      
Unrecognized compensation costs | $ 0.0           $ 0.0      
Weighted-average period of recognition             3 months      
Vesting of RSUs and PSUs (in shares)             422,368 422,368    
Equity-classified 2024 Executive PSUs                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Weighted-average grant date fair value, granted (in usd per share) | $ / shares             $ 13.29      
Unrecognized compensation costs | $ 29.3           $ 29.3      
Weighted-average period of recognition             1 year 6 months 29 days      
Vesting of RSUs and PSUs (in shares)             0      
Number of stock price hurdles | hurdle   4 4              
Requisite service period (in years)   2 years 6 months 14 days 2 years 10 months 17 days              
Risk-free interest rate   3.86% 4.46%              
Dividend yield   0.00% 0.00%              
Expected volatility   98.70% 95.73%              
Equity-classified 2024 Executive PSUs | Share-Based Payment Arrangement, Tranche One                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Vesting rights, percentage   33.00% 33.00%              
Equity-classified 2024 Executive PSUs | Share-Based Payment Arrangement, Tranche Two                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Vesting rights, percentage   33.00% 33.00%              
Equity-classified 2024 Executive PSUs | Share-Based Payment Arrangement, Tranche Three                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Vesting rights, percentage   34.00% 34.00%              
Equity-classified 2024 Executive PSUs | Stock Price, Hurdle One                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Stock hurdle price (in usd per share) | $ / shares   $ 14.86 $ 14.86              
Equity-classified 2024 Executive PSUs | Stock Price, Hurdle Two                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Stock hurdle price (in usd per share) | $ / shares   20.14 20.14              
Equity-classified 2024 Executive PSUs | Stock Price, Hurdle Three                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Stock hurdle price (in usd per share) | $ / shares   31.01 31.01              
Equity-classified 2024 Executive PSUs | Stock Price, Hurdle Four                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Stock hurdle price (in usd per share) | $ / shares   $ 68.82 $ 68.82              
Liability-classified 2024 Executive PSUs                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Weighted-average grant date fair value, granted (in usd per share) | $ / shares             $ 6.70      
Unrecognized compensation costs | $ $ 1.4           $ 1.4      
Weighted-average period of recognition             2 years 3 months 29 days      
Vesting of RSUs and PSUs (in shares)             0      
Cash awards limit per annum | $         $ 5.0          
Requisite service period (in years) 2 years 3 months 29 days       2 years 6 months 14 days          
Risk-free interest rate 4.21%       3.86%          
Dividend yield 0.00%       0.00%          
Expected volatility 100.27%       98.70%          
Minimum | RSUs                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Vesting period             1 year      
Maximum | RSUs                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Vesting period             4 years      
2011 Plan                    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]                    
Share-based payment award, shares authorized (in shares) 20,775,000           20,775,000     13,775,000
Maximum number of shares issuable (in shares)           7,000,000        
Number of shares available for issuance (in shares) 5,843,911           5,843,911