Accumulated Other Comprehensive (loss) - Schedule of Accumulated other comprehensive (loss) (Details) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2025	Aug. 31, 2024
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	$ 2,886,782	$ 2,512,225
Ending Balance	3,056,594	2,651,527
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(470,851)	(461,847)
Current period comprehensive (loss) income	19,615	(1,279)
Income taxes associated with the current period	(133)	(422)
Income taxes reclassified into earnings		(2,090)
Ending Balance	(451,369)	(465,638)
Pension And Other Postretirement Benefit Liability Adjustments, Net of Tax
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(72,661)	(84,647)
Current period comprehensive (loss) income		(1,521)
Amounts reclassified from accumulated other comprehensive income (loss)	1,409	1,766
Income taxes reclassified into earnings	(316)	(387)
Ending Balance	(71,568)	(84,789)
Unrealized Gain (Loss) On Derivatives, Net of Tax
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	11,405	11,405
Ending Balance	11,405	11,405
Unrealized Gain (Loss) On Securities, Net of Tax
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(1,524)	(2,201)
Current period comprehensive (loss) income	254	684
Income taxes associated with the current period	(18)	(43)
Amounts reclassified from accumulated other comprehensive income (loss)	(14)	(9)
Income taxes reclassified into earnings	2	1
Ending Balance	(1,300)	(1,568)
Accumulated Other Comprehensive Income (Loss)
Accumulated Other Comprehensive Income (Loss) [Line Items]
Beginning Balance	(533,631)	(537,290)
Current period comprehensive (loss) income	19,869	(2,116)
Income taxes associated with the current period	(151)	(465)
Amounts reclassified from accumulated other comprehensive income (loss)	1,395	1,757
Income taxes reclassified into earnings	(314)	(2,476)
Ending Balance	$ (512,832)	$ (540,590)