Segment Data - Net Sales by Geographic Region (Detail) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	May 31, 2021	Feb. 28, 2021	Nov. 30, 2020	Aug. 31, 2020	May 31, 2020	Feb. 29, 2020	Nov. 30, 2019	Aug. 31, 2019	May 31, 2021	May 31, 2020	May 31, 2019
Segment Reporting Information [Line Items]
Net sales	$ 978,319	$ 759,109	$ 731,092	$ 702,909	$ 611,627	$ 763,996	$ 827,637	$ 855,859	$ 3,171,429	$ 3,059,119	$ 3,759,556
North America
Segment Reporting Information [Line Items]
Net sales									2,956,962	2,912,777	3,559,650
International
Segment Reporting Information [Line Items]
Net sales									$ 214,467	$ 146,342	$ 199,906