Earnings Per Share - Computation of Basic and Diluted Earnings Per Share Attributable to Controlling Interest (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Aug. 31, 2022	Aug. 31, 2021
Numerator (basic & diluted):
Net earnings attributable to controlling interest - income available to common shareholders	$ 64,082	$ 132,491
Denominator:
Denominator for basic earnings share attributable to controlling interest - weighted average common shares	48,478	50,852
Effect of dilutive securities	760	1,013
Denominator for diluted earnings per share attributable to controlling interest - adjusted weighted average common shares	49,238	51,865
Basic earnings per share attributable to controlling interest	$ 1.32	$ 2.61
Diluted earnings per share attributable to controlling interest	$ 1.30	$ 2.55