v3.26.1
Investments - Cost and Estimated Fair Value (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Investments, Debt and Equity Securities [Abstract]    
Due within one year $ 2.5 $ 4.0
Due after one year through five years 0.5 0.0
Total $ 3.0 $ 4.0