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Stock-Based Compensation - Stock Option Activity (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 12 Months Ended
Jan. 01, 2025
Mar. 31, 2025
Sep. 30, 2024
Dec. 31, 2024
Shares Available for Grant         
Beginning number of shares, available for grant (in shares) 11,996,264 11,996,264    
2018 plan annual increase (in shares) 3,689,000 3,689,000    
Restricted stock units adjusted for performance adjustment (in shares)   (144,972)    
Ending number of shares, available for grant (in shares)   13,184,276   11,996,264
Shares Subject to Options Outstanding        
Beginning number of shares, outstanding (in shares) 4,631,750 4,631,750    
Granted (in shares)   524,770    
Exercised (in shares)   (44,121)    
Canceled (in shares)   0    
Ending number of shares, outstanding (in shares)   5,112,399   4,631,750
Options vested and exercisable, number of options (in shares)   2,583,531    
Weighted-Average Exercise Price         
Beginning balance of options outstanding (in usd per share) $ 32.98 $ 32.98    
Granted (in usd per share)   43.07    
Exercised (in usd per share)   17.39    
Canceled (in usd per share)   0    
Ending balance of options outstanding (in usd per share)   34.15   $ 32.98
Options vested and exercisable, weighted average exercise price per share (in usd per share)   $ 34.40    
Weighted-Average Remaining Contractual Life and Aggregate Intrinsic Value        
Options outstanding, weighted average remaining contractual term (in years)   7 years 2 months 12 days   7 years 1 month 6 days
Options vested and exercisable, weighted average remaining contractual term (in years)   5 years 2 months 12 days    
Options outstanding, aggregate intrinsic value   $ 75,088   $ 35,980
Options vested and exercisable, aggregate intrinsic value   $ 49,952    
Equity Option        
Shares Available for Grant         
Granted (in shares)   (524,770)    
Canceled (in shares)   0    
Restricted Stock Units        
Shares Available for Grant         
Granted (in shares)   (2,101,246)    
Canceled (in shares)   372,571    
Shares underlying unvested performance-based restricted stock units        
Shares Available for Grant         
Granted (in shares)   (281,378)    
Canceled (in shares)   178,807    
Shares Subject to Options Outstanding        
Granted (in shares)     219,161