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Debt and Credit Facility (Revolving Credit Facility) - Additional Information (Details) - USD ($)
$ in Millions
 9 Months Ended
Oct. 31, 2019
Sep. 30, 2025
Dec. 31, 2024
Apr. 30, 2022
Debt Instrument [Line Items]        
Total borrowings incurred [1]   $ 290.4    
Revolving Credit Facility        
Debt Instrument [Line Items]        
Line of credit facility, maximum borrowing capacity   $ 575.0   $ 575.0
Line of credit mature description   The Revolving Credit Facility contains a maximum commitment amount of $575.0 million (of which up to a maximum of $50.0 million may be utilized for letters of credit) and, prior to the October 14, 2025 amendment, had a maturity date of April 2027.    
Outstanding borrowings   $ 0.0 $ 0.0  
Total borrowings incurred   $ 290.4    
Revolving Credit Facility | Prime Rate        
Debt Instrument [Line Items]        
Line of credit maximum revolving commitment 0.50%      
Line of credit facility Less than unused capacity commitment 40.00%      
Effective interest rate (percent) 0.25%      
Revolving Credit Facility | SOFR | Amended Credit Agreement        
Debt Instrument [Line Items]        
Line of credit maximum revolving commitment 1.60%      
Line of credit facility Less than unused capacity commitment 40.00%      
Effective interest rate (percent) 1.35%      
Revolving Credit Facility | Letter of Credit        
Debt Instrument [Line Items]        
Line of credit facility, maximum borrowing capacity       $ 50.0
[1] See Note 12 for supplemental cash flow information.