Earnings Per Share - Computation of Basic and Diluted Earnings Per Common Share Attributable to Controlling Interest (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Nov. 30, 2023	Nov. 30, 2022	Nov. 30, 2023	Nov. 30, 2022
Numerator (basic & diluted):
Net earnings attributable to controlling interest - income available to common shareholders	$ 24,302	$ 16,218	$ 120,409	$ 80,300
Denominator:
Denominator for basic earnings per common share attributable to controlling interest - weighted average common shares	49,186	48,558	49,013	48,518
Effect of dilutive securities	856	772	1,089	775
Denominator for diluted earnings per common share attributable to controlling interest - adjusted weighted average common shares	50,042	49,330	50,102	49,293
Basic earnings per common share attributable to controlling interest	$ 0.49	$ 0.33	$ 2.46	$ 1.66
Diluted earnings per common share attributable to controlling interest	$ 0.49	$ 0.33	$ 2.4	$ 1.63