v3.26.1
Investments in Unconsolidated Affiliates - Additional Information (Detail) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
May 29, 2024
May 31, 2024
May 31, 2026
May 31, 2025
May 31, 2024
Oct. 16, 2025
Investments in and Advances to Affiliates [Line Items]            
Impairment charge of long-lived assets [1]         $ 32,975  
Investments in unconsolidated affiliates     $ 118,048 $ 129,262    
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     $ 34,773 33,011    
Hexagon            
Investments in and Advances to Affiliates [Line Items]            
Percentage of sale of nominal share capital of former Sustainable Energy Solutions 51.00%          
Cash consideration $ 11,986          
Percent of noncontrolling interest 49.00%          
Impairment charge of long-lived assets   $ 32,203        
Deal costs       473 1,250  
Hexagon | Joint Venture Transactions            
Investments in and Advances to Affiliates [Line Items]            
Percent of noncontrolling interest 49.00%          
Sustainable Energy Solutions Joint Venture | Joint Venture Transactions            
Investments in and Advances to Affiliates [Line Items]            
Percent of noncontrolling interest 2.00%          
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%     49.00%
Loss on sale of equity investments     $ 2,950      
WAVE            
Investments in and Advances to Affiliates [Line Items]            
Percent of ownership interest held in unconsolidated affiliates     50.00%      
Investments in unconsolidated affiliates     $ 105,349 103,767    
Workhorse            
Investments in and Advances to Affiliates [Line Items]            
Percent of ownership interest held in unconsolidated affiliates     20.00%      
Serviacero Worthington            
Investments in and Advances to Affiliates [Line Items]            
Distributions from unconsolidated affiliates     $ 139,992 $ 153,605 $ 187,258  
[1] See “Use of Non-GAAP Financial Measures and Definitions” for additional information.