Results of Reportable Segments (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Feb. 28, 2018	Feb. 28, 2017	Feb. 28, 2018	Feb. 28, 2017
Segment Reporting Information [Line Items]
Net Sales	$ 1,102,677	$ 1,022,496	$ 3,763,487	$ 3,465,329
Income (Loss) Before Income Taxes	34,698	16,997	299,163	58,615
Operating Segments \| Industrial Segment
Segment Reporting Information [Line Items]
Net Sales	569,210	521,403	2,001,883	1,830,672
Income (Loss) Before Income Taxes	17,804	11,705	174,402	151,262
Operating Segments \| Consumer Segment
Segment Reporting Information [Line Items]
Net Sales	363,370	341,434	1,205,945	1,115,095
Income (Loss) Before Income Taxes	29,123	29,802	146,576	(40,685)
Operating Segments \| Specialty Segment
Segment Reporting Information [Line Items]
Net Sales	170,097	159,659	555,659	519,562
Income (Loss) Before Income Taxes	22,792	15,000	90,398	76,664
Corporate/Other
Segment Reporting Information [Line Items]
Income (Loss) Before Income Taxes	$ (35,021)	$ (39,510)	$ (112,213)	$ (128,626)

Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h)(1)(i))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.1)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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