Equity - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	May 31, 2023	May 31, 2022	May 31, 2021	Mar. 24, 2021	Mar. 20, 2019
Equity [Abstract]
Common Stock shares authorized for repurchase				5,618,000	6,600,000
Common Stock remaining shares authorized for repurchase	6,065,000
Repurchase of common shares		$ 180,248	$ 192,054
Repurchases and retirement of common shares (in shares)	0	3,235,000	4,018,000
Deferred compensation obligation credited to common share option	$ 725	$ 592	$ 556