v3.26.1
Long-term Debt - Narrative (Details) - USD ($)
3 Months Ended
Mar. 31, 2026
Dec. 31, 2025
Aug. 20, 2025
Borrowings      
Letters of credit outstanding $ 48,000,000 $ 48,800,000  
5.25% Notes due 2035      
Borrowings      
Aggregate principal amount     $ 500,000,000
Interest rate (as a percent) 5.25%   5.25%
5.55% Notes due 2040      
Borrowings      
Aggregate principal amount     $ 500,000,000
Interest rate (as a percent) 5.55%   5.55%
Revolving credit facility | Revolving credit facility | Line of Credit      
Borrowings      
Borrowings from revolving credit facility $ 0    
Repayments of revolving credit facility 0    
Revolving credit facility 0 0  
Availability under revolving line of credit 1,000,000,000 $ 1,000,000,000  
Letter of credit | Revolving credit facility      
Borrowings      
Availability under revolving line of credit 52,000,000    
Maximum borrowing capacity $ 100,000,000