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Basis of Presentation - Additional Information (Detail) - USD ($) $ in Thousands	3 Months Ended
	Aug. 31, 2025	Aug. 31, 2024	May 31, 2025	Feb. 01, 2024
Significant Accounting Policies [Line Items]
Allowance for doubtful accounts	$ 906		$ 907
Halo
Significant Accounting Policies [Line Items]
Percent of controlling interest by the Company				80.00%
Worthington Steel | Long-term Steel Supply Agreement
Significant Accounting Policies [Line Items]
Purchases	37,036	$ 28,431
Accounts payable related to purchases from related party	$ 10,598		$ 9,099

X

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Amount of allowance for credit loss on accounts receivable, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(4))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 326
-SubTopic 20
-Name Accounting Standards Codification
-Section 45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479344/326-20-45-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 310
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481962/310-10-50-4

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