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Investments in Unconsolidated Affiliates - Additional Information (Detail) - USD ($) $ in Thousands		3 Months Ended	12 Months Ended
	Aug. 03, 2022	Nov. 30, 2023	May 31, 2024	May 31, 2023	May 31, 2022	May 29, 2024
Investments in and Advances to Affiliates [Line Items]
Investments in unconsolidated affiliates			$ 144,863	$ 138,041
Gain (Loss) on investments				16,059
Excess dividends received from investing activity			1,085
Samuel Joint Venture \| Joint Venture Transactions
Investments in and Advances to Affiliates [Line Items]
Consolidated retained earnings undistributed earnings net of tax			$ 37,398	69,008
Hexagon
Investments in and Advances to Affiliates [Line Items]
Percent of noncontrolling interest						49.00%
Hexagon \| Joint Venture Transactions
Investments in and Advances to Affiliates [Line Items]
Percent of noncontrolling interest						49.00%
Sustainable Energy Solutions Joint Venture
Investments in and Advances to Affiliates [Line Items]
Assets, Fair Value Disclosure						$ 31,367
Sustainable Energy Solutions Joint Venture \| Joint Venture Transactions
Investments in and Advances to Affiliates [Line Items]
Percent of noncontrolling interest						2.00%
ArtiFlex
Investments in and Advances to Affiliates [Line Items]
Percent of ownership interest held in unconsolidated affiliates			50.00%
Equity method investment sold amount after adjustments for closing debt and final net working capital	$ 35,795
Pre-tax loss on sale of equity	$ 16,059
ClarkDietrich
Investments in and Advances to Affiliates [Line Items]
Percent of ownership interest held in unconsolidated affiliates			25.00%
Sustainable Energy Solutions
Investments in and Advances to Affiliates [Line Items]
Percent of ownership interest held in unconsolidated affiliates			49.00%
Workhorse
Investments in and Advances to Affiliates [Line Items]
Percent of ownership interest held in unconsolidated affiliates			20.00%
Workhorse \| Brazil
Investments in and Advances to Affiliates [Line Items]
Gain (Loss) on investments		$ 2,780
Serviacero Worthington
Investments in and Advances to Affiliates [Line Items]
Distributions from unconsolidated affiliates			$ 187,258	228,357	$ 97,558
WAVE
Investments in and Advances to Affiliates [Line Items]
Percent of ownership interest held in unconsolidated affiliates			50.00%
Investments in unconsolidated affiliates			$ 111,905	$ 117,297
Excess dividends received from investing activity			$ 1,085