v3.25.4
Debt - Narrative (Details)
12 Months Ended
Feb. 11, 2025
Mar. 10, 2022
USD ($)
deferral_period
Jun. 04, 2019
USD ($)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Dec. 31, 2023
USD ($)
Jan. 15, 2025
USD ($)
Feb. 15, 2022
USD ($)
Sep. 22, 2020
Jun. 08, 2018
USD ($)
Debt Instrument [Line Items]                    
Long-term Debt       $ 943,500,000 $ 1,391,600,000          
Interest expense       38,500,000 56,900,000 $ 56,100,000        
Interest paid including facility fees       $ 44,400,000 54,500,000          
Senior Notes, 4.35 Percent Due February 15, 2025 | Senior Notes                    
Debt Instrument [Line Items]                    
Stated interest rate, percentage       4.35%            
Long-term debt, gross             $ 450,000,000.0      
Redemption price, percentage 100.00%                  
Senior Notes, 2.400 Percent Due September 30, 2030 | Senior Notes                    
Debt Instrument [Line Items]                    
Stated interest rate, percentage                 2.40%  
Long-term debt, gross       $ 400,000,000.0            
Proceeds from debt, net of issuance costs       395,800,000            
Debt instrument, effective interest rate                 2.52%  
Long-term Debt       397,900,000 397,500,000          
Senior Notes, 3.800 Percent Due February 23, 2032                    
Debt Instrument [Line Items]                    
Long-term Debt               $ 395,100,000    
Senior Notes, 3.800 Percent Due February 23, 2032 | Senior Notes                    
Debt Instrument [Line Items]                    
Stated interest rate, percentage               3.80%    
Long-term debt, gross       400,000,000            
Debt instrument, effective interest rate                 3.95%  
Long-term Debt       396,900,000 396,500,000          
5.875% Fixed-Rate Reset Junior Subordinated Debentures due 2062                    
Debt Instrument [Line Items]                    
Long-term Debt   $ 144,700,000                
5.875% Fixed-Rate Reset Junior Subordinated Debentures due 2062 | Senior Notes                    
Debt Instrument [Line Items]                    
Long-term debt, gross       150,000,000            
5.875% Fixed-Rate Reset Junior Subordinated Debentures due 2062 | Junior Debt                    
Debt Instrument [Line Items]                    
Stated interest rate, percentage   5.875%                
Long-term Debt       148,700,000 147,700,000          
Debt instrument, basis spread on variable rate   4.14%                
Interest deferrals, number of deferral periods | deferral_period   1                
Interest deferrals, period (up to)   5 years                
Second Amended and Restated Credit Agreement | Notes Payable under Revolving Credit Agreement | Revolving Credit Facility                    
Debt Instrument [Line Items]                    
Maximum Capacity Amount     $ 800,000,000.0 $ 600,000,000.0           $ 600,000,000.0
Increase in line of credit facility     200,000,000.0              
Line of credit, outstanding         $ 0          
Debt issuance costs     2,200,000              
Unamortized debt issuance expense     $ 600,000