v3.26.1
Debt - Narrative (Details)
Jan. 15, 2025
USD ($)
Mar. 15, 2022
USD ($)
Mar. 10, 2022
USD ($)
deferral_period
Jun. 30, 2026
USD ($)
May 04, 2026
USD ($)
Dec. 31, 2025
USD ($)
Mar. 16, 2022
USD ($)
Feb. 15, 2022
USD ($)
Debt Instrument [Line Items]                
Long-term debt       $ 944,500,000   $ 943,500,000    
Senior Notes | Senior Notes, 4.35 Percent Due February 15, 2025                
Debt Instrument [Line Items]                
Stated interest rate       4.35%        
Long-term debt, gross $ 450,000,000.0              
Redemption price, percentage 100.00%              
Senior Notes | Senior Notes, 2.400 Percent Due September 30, 2030                
Debt Instrument [Line Items]                
Stated interest rate       2.40%        
Long-term debt, gross       $ 400,000,000.0        
Face amount of debt       $ 395,800,000        
Effective interest rate       2.52%        
Long-term debt       $ 398,100,000   397,900,000    
Senior Notes | Senior Notes, 3.800 Percent Due February 23, 2033                
Debt Instrument [Line Items]                
Stated interest rate       3.80%        
Long-term debt, gross               $ 400,000,000.0
Effective interest rate       3.95%        
Long-term debt       $ 397,200,000   396,900,000   $ 395,100,000
Junior Debt | 5.875% Fixed-Rate Reset Junior Subordinated Debentures due 2062                
Debt Instrument [Line Items]                
Stated interest rate       5.875%        
Long-term debt, gross     $ 150,000,000.0          
Long-term debt     $ 144,700,000 $ 149,200,000   148,700,000    
Debt instrument, basis spread on variable rate     4.14%          
Debt instrument, interest deferrals, number of deferral periods | deferral_period     1          
Debt instrument, interest deferrals, period     5 years          
Revolving Credit Facility | Line of Credit | Amended and Restated Credit Agreement                
Debt Instrument [Line Items]                
Line of credit facility, maximum borrowing capacity   $ 600,000,000.0     $ 350,000,000.0   $ 800,000,000.0  
Increase in revolving credit borrowing capacity   $ 200,000,000.0            
Line of credit facility, amount outstanding       $ 0   $ 0    
Line of credit facility, maximum borrowing capacity including accordion feature         $ 550,000,000.0