Comprehensive Income (Loss) - Summary of Tax Effects on Each Component of Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands	12 Months Ended
	May 31, 2021	May 31, 2020	May 31, 2019
Components Of Other Comprehensive Income Loss [Abstract]
Foreign currency translation, before tax	$ 9,958	$ 10,480	$ (14,772)
Foreign currency translation, tax	963	17
Foreign currency translation, net of tax	10,921	10,497	(14,772)
Pension liability adjustment, before tax	7,684	(5,395)	(2,203)
Pension liability adjustment, tax	(1,753)	1,365	418
Pension liability adjustment, net of tax	5,931	(4,030)	(1,785)
Cash flow hedges, before tax	83,434	2,339	(16,227)
Cash flow hedges, tax	(19,682)	(559)	3,780
Cash flow hedges, net of tax	63,752	1,780	(12,447)
Other comprehensive income (loss), before tax	101,076	7,424	(33,202)
Other comprehensive income (loss), tax	(20,472)	823	4,198
Other comprehensive income (loss)	$ 80,604	$ 8,247	$ (29,004)