v3.25.2
Fair Value of Financial Instruments - Narrative (Details) - USD ($)
$ in Millions
Jun. 30, 2025
May 29, 2025
Feb. 12, 2025
Dec. 31, 2024
BVES        
Fair value of financial instruments        
Face amount of debt     $ 50.0  
Unsecured private-placement notes | GSWC        
Fair value of financial instruments        
Face amount of debt $ 100.0 $ 100.0    
Unsecured private-placement notes | BVES        
Fair value of financial instruments        
Face amount of debt 50.0      
Mutual Funds | Fair Value, Inputs, Level 1        
Fair value of financial instruments        
Other Investments and Securities, at Cost $ 43.3     $ 41.2