Segment Operations - Schedule of Capital Expenditures of Reportable Segments (Detail) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Feb. 28, 2026	Feb. 28, 2025	Feb. 28, 2026	Feb. 28, 2025
Segment Reporting Information [Line Items]
Capital expenditures	$ 13,794	$ 12,704	$ 39,421	$ 37,494
Total Reportable Operating Segments
Segment Reporting Information [Line Items]
Capital expenditures	13,058	12,188	37,392	30,978
Total Reportable Operating Segments \| Consumer Products
Segment Reporting Information [Line Items]
Capital expenditures	6,020	8,775	21,956	19,508
Total Reportable Operating Segments \| Building Products
Segment Reporting Information [Line Items]
Capital expenditures	7,038	3,413	15,436	11,470
Unallocated Corporate
Segment Reporting Information [Line Items]
Capital expenditures	$ 736	$ 516	$ 2,029	$ 6,516

Amount of expenditure for addition to long-lived assets included in determination of segment assets by chief operating decision maker (CODM) or otherwise regularly provided to CODM. Excludes expenditure for addition to financial instrument, long-term customer relationship of financial institution, mortgage and other servicing rights, deferred policy acquisition cost, and deferred tax assets.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 48
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482785/280-10-55-48

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 55
-Paragraph 49
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482785/280-10-55-49

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 270
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
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-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482810/280-10-50-25

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