Investments (Details-1) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Equity Securities [Abstract]
Equity securities	$ 23,119	$ 24,027
Equity method investments: [Abstract]
Equity method investments	92,618	86,498
Other investments	2,298	2,298
Total investments	118,035	112,823
Proceeds from Sale, Maturity and Collection of Investments [Abstract]
Proceeds from sale of investments	2,554	995	$ 924
Gain (loss) on sale of investments	239	(899)	$ 1,382
ATC and ATC Holdco [Member]
Equity method investments: [Abstract]
Equity method investments	92,579	86,459
Other Equity Method Investments [Member]
Equity method investments: [Abstract]
Equity method investments	39	39
MGE [Member]
Equity method investments: [Abstract]
Total investments	$ 0	$ 60