Pension Plans - Retirement-Related Benefit Plans' Impact on Income Before Income Taxes (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	Feb. 29, 2024	Feb. 28, 2023
Pension Benefits | U.S. Plans
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	$ 10,913	$ 10,890	$ 32,739	$ 32,670
Interest cost	8,992	7,173	26,976	21,519
Expected return on plan assets	(10,518)	(9,536)	(31,554)	(28,608)
Prior service cost (credit)	1		3
Net actuarial (gains) losses recognized	4,205	4,487	12,615	13,461
Net Periodic Benefit Cost	13,593	13,014	40,779	39,042
Pension Benefits | Non-U.S. Plans
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	887	951	2,661	2,853
Interest cost	1,935	1,728	5,805	5,184
Expected return on plan assets	(2,400)	(1,727)	(7,200)	(5,181)
Prior service cost (credit)	(31)	(27)	(93)	(81)
Net actuarial (gains) losses recognized	209	125	627	375
Net Periodic Benefit Cost	600	1,050	1,800	3,150
Postretirement Benefits | U.S. Plans
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Interest cost	22	21	66	63
Prior service cost (credit)		(30)		(90)
Net actuarial (gains) losses recognized	(4)	11	(12)	33
Net Periodic Benefit Cost	18	2	54	6
Postretirement Benefits | Non-U.S. Plans
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Service cost	569	287	1,707	861
Interest cost	390	368	1,170	1,104
Net actuarial (gains) losses recognized	(12)	(14)	(36)	(42)
Net Periodic Benefit Cost	$ 947	$ 641	$ 2,841	$ 1,923