Pension Plans - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2020	May 31, 2019
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Matching contribution charged to income	$ 24,700	$ 21,700	$ 21,100
Pension Benefits
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Average compensation with accrued benefits vesting period				5 years
Estimated benefits payable in the first year	65,500
Estimated benefits payable in the second year	68,800
Estimated benefits payable in the third year	70,900
Estimated benefits payable in the fourth year	73,900
Estimated benefits payable in the fifth year	76,300
Estimated benefits payable in the years thereafter	379,800
U.S. Plans | Pension Benefits
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Contribution to retirement plans in the next fiscal year	1,300
Contribution to retirement plan in the current	65,604	62,264
Required contribution to retirement plans in the current fiscal year	1,000
Non-U.S. Plans | Pension Benefits
Defined Benefit Plans And Other Postretirement Benefit Plans Table Text Block [Line Items]
Contribution to retirement plans in the next fiscal year	4,900
Contribution to retirement plan in the current	$ 4,626	$ 7,119