Other Expense, Net (Detail) - USD ($) $ in Thousands		12 Months Ended
		May 31, 2021	May 31, 2020	May 31, 2019
Other Income And Expenses [Abstract]
Royalty expense (income), net	[1]	$ (387)	$ 5,206	$ (96)
(Income) related to unconsolidated equity affiliates		(516)	(165)	(332)
Pension non-service costs		14,542	6,076	1,647
Loss on extinguishment of debt	[2]			3,051
Loss on divestiture	[3]		949
Other expense, net		$ 13,639	$ 12,066	$ 4,270

[1] Includes a $5.3 million charge incurred during the fourth quarter of fiscal 2020 related to the termination of a licensing agreement within our Consumer reportable segment.

[2] In connection with the redemption of all of our outstanding 2.25% convertible senior notes in November 2018, we recognized a loss of $3.1 million, due to the fair value remeasurement on the date of conversion

[3] Reflects the loss incurred upon divestiture of a contracting business located in Australia, which had reported through our PCG segment.