Quarterly report [Sections 13 or 15(d)]

Share-Based Compensation - Activity (Details)

v3.25.1
Share-Based Compensation - Activity (Details) - USD ($)
3 Months Ended
Feb. 18, 2025
Feb. 21, 2024
Feb. 21, 2023
Mar. 31, 2025
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2024
Feb. 15, 2022
Stock Options, Number of Shares                
Converted/Exercised (in shares)         (5,757)      
Stock options, additional disclosures                
Weighted average remaining contractual term for vested stock options       3 years 10 months 24 days        
Unrecognized share-based compensation expense                
RSAs, Unrecognized Compensation Expense on Unvested Awards       $ 31,314,000        
Restricted stock awards, Weighted average remaining vesting period       1 year 2 months 12 days        
Total unrecognized compensation expense related to unvested awards       $ 31,314,000        
Assumptions used to estimate the fair values of the awards granted:                
Measurement period (years)       2 years 10 months 9 days 2 years 10 months 9 days 2 years 10 months 9 days    
Risk free interest rate (as a percent)       4.28% 4.36% 4.42%    
Dividend yield (as a percent)       0.00% 0.00% 0.00%    
Estimated fair value of market-based RSAs at grant date (in dollars per share)       $ 393.39 $ 503.68 $ 270.64    
Restricted Stock Awards                
Restricted Stock Awards, Number of Shares                
Balance at beginning of period (in shares)       176,000        
Granted (in shares)       52,300        
Converted/Exercised (in shares)       (45,400)        
Forfeited/Expired (in shares)       (13,200)        
Balance at end of period (in shares)       169,700        
Restricted Stock Awards, Weighted Average Grant Date Fair Value Per Share                
Balance at beginning of period (in dollars per share)       $ 269.5        
Granted (in dollars per share)       342.95        
Converted/Exercised (in dollars per share)       242.42        
Forfeited/Expired (in dollars per share)       298.11        
Balance at end of period (in dollars per share)       $ 297.16        
Restricted Stock Awards | Performance-based conditions                
Restricted stock awards, additional disclosures                
Grant date fair value $ 5,040,000 $ 4,412,000 $ 3,819,000          
Restricted Stock Awards | Performance-based conditions | Payout Range-0%                
Restricted stock awards, additional disclosures                
Payout range (as a percent)   0.00% 0.00%         0.00%
Restricted Stock Awards | Performance-based conditions | Payout Range-25%                
Restricted stock awards, additional disclosures                
Payout range (as a percent)   25.00% 25.00%         25.00%
Related expenses 1,260,000 $ 1,103,000 $ 955,000          
Restricted Stock Awards | Performance-based conditions | Payout Range-100%                
Restricted stock awards, additional disclosures                
Payout range (as a percent)   100.00% 100.00%         100.00%
Related expenses 5,040,000 $ 4,412,000 $ 3,819,000          
Restricted Stock Awards | Performance-based conditions | Payout Range-200%                
Restricted stock awards, additional disclosures                
Payout range (as a percent)   200.00% 200.00%         200.00%
Related expenses $ 10,080,000 $ 8,824,000 $ 7,638,000          
RSAs granted February 15, 2022 | Performance-based conditions                
Restricted stock awards, additional disclosures                
Cumulative period of achievement       3 years        
Cumulative achievement percentage       200.00%        
Total compensation expense recognized over the performance period, net of forfeitures       $ 5,800,000        
Employee Stock Option                
Stock Options, Number of Shares                
Balance at beginning of period (in shares)       112,700        
Balance at end of period (in shares)       112,700        
Stock Options, Weighted Average Grant Date Fair Value Per Share                
Balance at beginning of period (in dollars per share)       $ 30.1        
Balance at end of period (in dollars per share)       30.1        
Stock Options, Weighted Average Exercise Price Per Share                
Balance at beginning of period (in dollars per share)       83.97        
Balance at end of period (in dollars per share)       $ 83.97        
Stock options, additional disclosures                
Aggregate intrinsic value       $ 24,885,300     $ 25,604,900  
Exercisable, Number of shares       112,700        
Exercisable, Weighted Average Grant Date Fair Value Per Share       $ 30.1        
Exercisable Weighted Average Exercise Price Per Share       $ 83.97        
Exercisable, Aggregate Intrinsic Value       $ 24,885,300