Investments (Details-4) - ATC [Member] - Affiliated Entity [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating Costs and Expenses [Abstract]
Operating Costs and Expenses, Total	$ 36.3	$ 33.8	$ 31.4
Receivables [Abstract]
Other Receivables	$ 2.0	$ 5.3