Summary of Activity for Vested Restricted Shares (Details) - Vested Restricted Stock - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	May 31, 2024	May 31, 2023	May 31, 2022
Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items]
Weighted-average grant date fair value	$ 93.95	$ 81.95	$ 86.68
Fair value of restricted share vested	$ 32,842	$ 28,553	$ 27,163
Shares of restricted stock vested	421	432	441
Intrinsic value of restricted shares vested	$ 38,608	$ 33,186	$ 33,032