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Debt - Additional Information (Details)
 1 Months Ended 3 Months Ended 9 Months Ended 12 Months Ended
Jun. 30, 2021
USD ($)
$ / shares
shares
Sep. 30, 2024
USD ($)
Jan. 31, 2021
USD ($)
Oct. 31, 2025
USD ($)
Notes
$ / shares
Oct. 31, 2025
USD ($)
Notes
$ / shares
shares
Jan. 31, 2021
USD ($)
Jan. 31, 2025
USD ($)
Oct. 31, 2024
$ / shares
Jun. 30, 2023
USD ($)
Convertible Senior Notes | 1.50% Convertible Senior Notes Due September 15, 2029                  
Debt Instrument [Line Items]                  
Aggregate principal amount   $ 460,000,000   $ 460,000,000 $ 460,000,000   $ 460,000,000    
Debt instrument interest rate stated percentage   1.50%              
Date of first required payment   Mar. 15, 2025              
Debt instrument due date   Sep. 15, 2029              
Principal amount of notes used in conversion rate $ 1,000                
Initial conversion rate per $1,000 principal amount of notes | shares 23.0102                
Initial conversion price per share of common stock | $ / shares $ 43.46                
Debt instrument, effective interest rate       2.06% 2.06%        
Interest expense       $ 2,600,000 $ 7,800,000        
Strike price | $ / shares               43.46  
Initial cap prices | $ / shares               66.86  
Common stock shares covered under capped call transactions | shares         10,600,000        
Cost of purchased capped calls         $ 52,500,000        
Total debt outstanding with net carrying amount       450,415,000 450,415,000   448,638,000    
Convertible Senior Notes | 0.00% Convertible Senior Notes Due January 15, 2026                  
Debt Instrument [Line Items]                  
Aggregate principal amount     $ 345,000,000 $ 205,000,000 $ 205,000,000 $ 345,000,000 205,000,000    
Debt instrument interest rate stated percentage     0.00%     0.00%      
Debt instrument due date           Jan. 15, 2026      
Principal amount of notes used in conversion rate $ 1,000                
Debt instrument, convertible, latest date     Oct. 15, 2025            
Number of notes converted | Notes       0 0        
Initial conversion rate per $1,000 principal amount of notes | shares 38.7962                
Initial conversion price per share of common stock | $ / shares $ 25.78                
Repurchase of aggregate principal amount   $ 140,000,000              
Debt instrument, effective interest rate       0.56% 0.56%        
Interest expense       $ 2,600,000 $ 7,800,000        
Strike price | $ / shares       25.80 25.80        
Initial cap prices | $ / shares       35.58 35.58        
Common stock shares covered under capped call transactions | shares         13,400,000        
Cost of purchased capped calls   $ 30,300,000     $ 27,800,000        
Total debt outstanding with net carrying amount       $ 204,762,000 204,762,000   $ 203,907,000    
Secured Debt | June 2023 Facility | Revolving Credit Facility | Wells Fargo Bank                  
Debt Instrument [Line Items]                  
Line of credit facility, maximum borrowing capacity                 $ 75,000,000
Total debt outstanding with net carrying amount       $ 0 $ 0        
Secured Debt | June 2023 Facility | Letters of Credit | Wells Fargo Bank                  
Debt Instrument [Line Items]                  
Line of credit facility, maximum borrowing capacity sublimit                 $ 45,000,000