Subsequent Events	6 Months Ended
Nov. 30, 2025
Subsequent Events [Abstract]
Subsequent Events	Note 17 – Subsequent Events The Company fully repaid four of Sitem Group’s loan agreements totaling €12.4 million (approximately $14.3 million) with cash on hand in November 2025 and December 2025. Due to Sitem Group’s one-month reporting lag, the November repayment is not reflected in the consolidated balance sheets or the disclosures in “Note 7 – Debt”. Upon repayment of one of the loan agreements, the associated interest rate swap was terminated. This is expected to result in a pre-tax gain of €0.2 million (approximately $0.2 million) in the third quarter of fiscal 2026. On December 17, 2025, Worthington Steel's Board of Directors (the “Board”) declared a quarterly cash dividend of $0.16 per common share payable on March 27, 2026 to shareholders of record at the close of business on March 13, 2026.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/855/tableOfContent

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147483399/855-10-50-2

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