Changes Recognized in Other Comprehensive Income, Pension (Detail) - Pension Benefits - USD ($) $ in Thousands	12 Months Ended
	May 31, 2022	May 31, 2021
U.S. Plans
Changes in plan assets and benefit obligations recognized in other comprehensive income:
Net (gain) loss arising during the year	$ (18,794)	$ (60,857)
Amounts recognized as a component of net periodic benefit cost:
Amortization or curtailment recognition of prior service (cost) benefit	(5)	(8)
Amortization or settlement recognition of net (loss)	(16,916)	(30,005)
Total recognized in other comprehensive loss (income)	(35,715)	(90,870)
Non-U.S. Plans
Changes in plan assets and benefit obligations recognized in other comprehensive income:
Prior service cost	294
Net (gain) loss arising during the year	(1,517)	(21,838)
Effect of exchange rates on amounts included in AOCI	(1,999)	6,465
Amounts recognized as a component of net periodic benefit cost:
Amortization or curtailment recognition of prior service (cost) benefit	139	150
Amortization or settlement recognition of net (loss)	(473)	(2,748)
Total recognized in other comprehensive loss (income)	$ (3,556)	$ (17,971)