CONSOLIDATED STATEMENTS OF COMPREHENSIVE (LOSS)/INCOME - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Statement of Comprehensive Income [Abstract]
Net Income/(Loss)	$ 1,699,891	$ 819,172	$ (434,721)
Other Comprehensive Income, Net of Tax:
Qualified Cash Flow Hedging Instruments	20	20	20
Changes in Unrealized Gains on Marketable Securities	0	0	1,252
Changes in Funded Status of Pension, SERP and PBOP Benefit Plans	5,945	7,245	4,412
Other Comprehensive Income, Net of Tax	5,965	7,265	5,684
Comprehensive Income Attributable to Noncontrolling Interests	(7,519)	(7,519)	(7,519)
Comprehensive Income/(Loss) Attributable to Common Shareholders	$ 1,698,337	$ 818,918	$ (436,556)