Stock-Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Feb. 29, 2024	Feb. 28, 2023	Feb. 29, 2024	Feb. 28, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-qualified stock options, granted			58,000
Non-qualified stock option, per share weighted average price			$ 68.68
Pre-tax stock-based compensation expense	$ 2,602	$ 4,975	$ 13,294	$ 13,758
Non-Qualified Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Non-qualified stock options, granted			58,000
Non-qualified stock option, weighted average fair value, per share price			$ 25.61
Pre-tax stock-based compensation, period of recognition			3 years
Pre-tax stock-based compensation expense			$ 1,485
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
Pre-tax stock-based compensation expense			$ 13,831
Restricted common shares, granted			214,000
Restricted common shares, fair value per share			$ 64.57
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted common shares, granted			113,000
Restricted common shares, fair value per share			$ 52.73
Pre-tax stock-based compensation, period of recognition			3 years