Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended				6 Months Ended
	Aug. 31, 2025	May 31, 2025	Aug. 31, 2024	May 31, 2024	Aug. 31, 2025	Aug. 31, 2024
Schedule of Accumulated Other Comprehensive Loss [Line Items]
Beginning balance		$ 3,080			$ 3,080
Other comprehensive loss before reclassifications					(9,625)
Amounts reclassified from accumulated other comprehensive (loss) income					(14,761)
Other comprehensive income (loss), net of taxes	$ (13,060)	(11,326)	$ (52,621)	$ 2,399	(24,386)	$ (50,222)
Ending balance	(21,306)				(21,306)
Net Unrecognized Actuarial Losses
Schedule of Accumulated Other Comprehensive Loss [Line Items]
Beginning balance		(36,008)			(36,008)
Other comprehensive loss before reclassifications					0
Amounts reclassified from accumulated other comprehensive (loss) income					152
Other comprehensive income (loss), net of taxes					152
Ending balance	(35,856)				(35,856)
Net Unrecognized Hedge Gains (Losses)
Schedule of Accumulated Other Comprehensive Loss [Line Items]
Beginning balance		$ 39,088			39,088
Other comprehensive loss before reclassifications					(9,625)
Amounts reclassified from accumulated other comprehensive (loss) income					(14,913)
Other comprehensive income (loss), net of taxes					(24,538)
Ending balance	$ 14,550				$ 14,550