v3.25.2
Description of Business and Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)
 3 Months Ended 12 Months Ended
May 29, 2024
May 31, 2025
May 31, 2024
May 31, 2025
May 31, 2024
May 31, 2023
Feb. 01, 2024
Description of Business and Summary of Significant Accounting Policies [Line Items]              
Impairment charge of long-lived assets       $ 50,813,000 [1]   $ 484,000  
Impairment of goodwill   $ 50,050,000     $ (14,210,000)    
Contract assets   0 $ 0 0 0    
Unbilled receivables   0 0 0 0    
Derivative financial instruments, credit losses       0      
Allowance for doubtful accounts increase (decrease)       564,000      
Receivables, allowances   $ 907,000 343,000 907,000 343,000    
Inventory obsolescence reserve     4,600,000   4,600,000    
Depreciation Expenses       34,490,000 36,793,000 34,017,000  
Advertising Expenses       $ 28,235,000 29,618,000 $ 28,365,000  
Excess dividends received from investing activity         1,085,000    
WAVE              
Description of Business and Summary of Significant Accounting Policies [Line Items]              
Excess dividends received from investing activity         1,085,000    
Maximum              
Description of Business and Summary of Significant Accounting Policies [Line Items]              
Period allowed for payment of dues to customers       60 days      
Maximum | Building and Building Improvements              
Description of Business and Summary of Significant Accounting Policies [Line Items]              
Property, plant and equipment, estimated useful life   40 years   40 years      
Maximum | Machinery and Equipment              
Description of Business and Summary of Significant Accounting Policies [Line Items]              
Property, plant and equipment, estimated useful life   20 years   20 years      
Minimum              
Description of Business and Summary of Significant Accounting Policies [Line Items]              
Period allowed for payment of dues to customers       30 days      
Minimum | Building and Building Improvements              
Description of Business and Summary of Significant Accounting Policies [Line Items]              
Property, plant and equipment, estimated useful life   10 years   10 years      
Minimum | Machinery and Equipment              
Description of Business and Summary of Significant Accounting Policies [Line Items]              
Property, plant and equipment, estimated useful life   3 years   3 years      
Hexagon              
Description of Business and Summary of Significant Accounting Policies [Line Items]              
Percent of noncontrolling interest 49.00%            
Percentage of sale of nominal share capital of former Sustainable Energy Solutions 51.00%            
Percentage of shares held by members of existing management team of joint venture 2.00%            
Impairment charge of long-lived assets     32,203,000        
Impairment of goodwill     $ 14,210,000        
Deconsolidation, loss         (30,502,000)    
Deal costs       $ 473,000 $ 1,250,000    
Hexagon | Joint Venture Transactions              
Description of Business and Summary of Significant Accounting Policies [Line Items]              
Percent of noncontrolling interest 49.00%            
Halo              
Description of Business and Summary of Significant Accounting Policies [Line Items]              
Percent of controlling interest by the Company             80.00%
[1] Significant pre-tax impairment charges include $50,050 in the fourth quarter of fiscal 2025 related to the write-down of intangible assets associated with GTI.