Valuation and Qualifying Accounts and Reserves (Schedule II) (Detail) - USD ($) $ in Thousands		12 Months Ended
		May 31, 2022	May 31, 2021	May 31, 2020
Accrued Product Liability Reserves, Current
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period		$ 18,297	$ 10,458	$ 11,739
Additions Charged to Selling, General and Administrative		8,358	14,173	5,356
(Deductions) Additions	[1]	(10,652)	(6,334)	(6,637)
Balance at End of Period		16,003	18,297	10,458
Accrued Environmental Reserves, Current
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period		1,329	1,970	1,147
Additions Charged to Selling, General and Administrative		674	1,045	1,168
(Deductions) Additions	[1]	(948)	(1,686)	(345)
Balance at End of Period		1,055	1,329	1,970
Accrued Product Liability Reserves, Noncurrent
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period		26,614	27,016	29,942
Additions Charged to Selling, General and Administrative		10,760	15,366	15,042
(Deductions) Additions	[1]	(11,148)	(15,768)	(17,968)
Balance at End of Period		26,226	26,614	27,016
Accrued Environmental Reserves, Noncurrent
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period		6,267	4,125	4,211
Additions Charged to Selling, General and Administrative		318	1,918	371
(Deductions) Additions		(331)	224	(457)
Balance at End of Period		6,254	6,267	4,125
Allowance For Credit Loss Current
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period		55,922	55,847	54,748
Additions Charged to Selling, General and Administrative		4,326	10,044	16,683
Acquisitions (Disposals) of Businesses and Reclassifications				(79)
(Deductions) Additions	[2]	(13,579)	(9,969)	(15,505)
Balance at End of Period		$ 46,669	$ 55,922	$ 55,847

[1] Primarily claims paid during the year, net of insurance contributions

[2] Uncollectible accounts written off, net of recoveries