Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 30, 2024	Nov. 30, 2023	Nov. 30, 2024	Nov. 30, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-qualified stock option, per share weighted average price			$ 44.38
Non-qualified stock option, weighted average fair value, per share price			$ 16.38
Pre-tax stock-based compensation expense	$ 5,937	$ 6,175	$ 9,862	$ 10,691
Non-Qualified Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-qualified stock options, granted			54,200
Pre-tax stock-based compensation, period of recognition			3 years
Pre-tax stock-based compensation expense			$ 888
Service-Based Restricted Common Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax stock-based compensation, period of recognition		3 years	3 years
Pre-tax stock-based compensation expense			$ 13,011
Restricted common shares, granted			289,820
Restricted common shares, fair value per share			$ 44.89
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Pre-tax stock-based compensation expense			$ 1,868
Restricted common shares, granted			42,100
Pre-tax stock-based compensation, period of recognition			3 years