Revenue Recognition - Cumulative Effect of Adopting New Revenue Recognition Guidance on Consolidated Balance Sheet (Detail) - USD ($) $ in Thousands	May 31, 2020	May 31, 2019	Jun. 01, 2018	May 31, 2018
ASSETS
Receivables	$ 341,038	$ 501,944		$ 572,689
Total inventories	405,101	484,280		454,027
Prepaid expenses and other current assets	68,538	69,508		60,134
LIABILITIES AND EQUITY
Deferred income taxes, net	71,942	74,102		60,188
Retained earnings	572,262	591,533		637,757
Noncontrolling interests	$ 145,612	$ 117,148		$ 117,606
Accounting Standards Update 2014-09
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
Accounting Standards Update 2014-09 | 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