Revenue Recognition - Cumulative Effect of Adopting New Revenue Recognition Guidance on Consolidated Balance Sheet (Detail) - USD ($) $ in Thousands	May 31, 2021	May 31, 2020	Jun. 01, 2018	May 31, 2018
ASSETS
Receivables	$ 639,964	$ 341,038		$ 572,689
Total inventories	564,754	405,101		454,027
Prepaid expenses and other current assets	69,049	68,538		60,134
LIABILITIES AND EQUITY
Deferred income taxes, net	113,751	71,942		60,188
Retained earnings	1,070,016	572,262		637,757
Noncontrolling interests	$ 153,502	$ 145,612		$ 117,606
ASC 606
ASSETS
Receivables			$ 577,395
Total inventories			450,575
Prepaid expenses and other current assets			61,078
LIABILITIES AND EQUITY
Deferred income taxes, net			60,642
Retained earnings			638,931
Noncontrolling interests			118,176
ASC 606 | Cumulative Effect of Topic 606 Adoption
ASSETS
Receivables			4,706
Total inventories			(3,452)
Prepaid expenses and other current assets			944
LIABILITIES AND EQUITY
Deferred income taxes, net			454
Retained earnings			1,174
Noncontrolling interests			$ 570