Investments - Additional Information (Detail) $ in Millions |
12 Months Ended | ||
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May 31, 2026
USD ($)
Jointventure
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May 31, 2025
USD ($)
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May 31, 2024
USD ($)
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| Investments in and Advances to Affiliates [Line Items] | |||
| Assets, Fair Value Disclosure | $ 76.8 | ||
| Serviacero Worthington | |||
| Investments in and Advances to Affiliates [Line Items] | |||
| Percent of ownership own a noncontrolling interest held in unconsolidated joint venture | 50.00% | ||
| Number of unconsolidated joint ventures | Jointventure | 1 | ||
| Distributions from unconsolidated affiliates | $ 23.5 | $ 12.8 | $ 2.0 |
| Consolidated retained earnings undistributed earnings net of tax | 61.7 | $ 64.9 | |
| Kloeckner | |||
| Investments in and Advances to Affiliates [Line Items] | |||
| Dividend income | $ 1.9 | ||
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- Definition Fair value portion of asset recognized for present right to economic benefit. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount of distribution received from equity method investee for return on investment, classified as operating activities. Excludes distribution for return of investment, classified as investing activities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of dividend income on nonoperating securities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Amount of consolidated retained earnings that represent undistributed (not yet received) earnings from 50 percent or less owned persons accounted for by the equity method (equity method investees). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of unconsolidated joint ventures. No definition available.
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- Details
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- Details
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