v3.26.1
Other Contingencies (Details)
6 Months Ended
Jun. 30, 2026
USD ($)
covenant
Dec. 31, 2025
USD ($)
Short-term Debt [Line Items]    
Bank line of credit $ 300,000,000  
Basis spread on variable rate 1.65%  
Line of credit $ 0 $ 0
Financial covenants | covenant 2  
Reduction of bank line of credit $ 32,000,000  
Amount available under line of credit 268,000,000  
Irrevocable standby letters of credit    
Short-term Debt [Line Items]    
Irrevocable standby letter of credit, outstanding 32,000,000  
Revolving Credit Facility | Unsecured Revolving Loan Facility | Line of Credit    
Short-term Debt [Line Items]    
Bank line of credit $ 300,000,000  
Expiration period 5 years  
Additional commitment $ 500,000,000