v3.26.3
Fair Value (Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]          
Unrealized Gain (Loss) on Investments $ (0.1) $ 0.4 $ 0.1 $ 0.6  
Level 1 [Member] | Money Market Funds [Member]          
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]          
Investments, Fair Value Disclosure 0.4   0.4   $ 0.8
Level 2 [Member] | Money Market Funds [Member]          
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]          
Investments, Fair Value Disclosure 0.0   0.0   0.0
Level 3 [Member] | Money Market Funds [Member]          
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]          
Investments, Fair Value Disclosure 0.0   0.0   0.0
Estimate of Fair Value Measurement [Member] | Money Market Funds [Member]          
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]          
Investments, Fair Value Disclosure $ 0.4   $ 0.4   $ 0.8