Consolidated Statements of Comprehensive (Loss) Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract]
Net (Loss) Income	$ (36,556)	$ 58,061	$ (105,833)	$ 159,952
Other Comprehensive Income:
Actuarially Determined Long-Term Liability Adjustments (Net of tax: ($109), ($110), ($218), ($221))	378	385	756	770
Unrealized Gain (Loss) on Investments in Available-for-Sale Securities (Net of tax: ($119), $5, ($47), $41)	464	(17)	163	(143)
Other Comprehensive Income	842	368	919	627
Comprehensive (Loss) Income	$ (35,714)	$ 58,429	$ (104,914)	$ 160,579