v3.26.1
ACQUISITIONS - Narrative (Details)
$ in Thousands
3 Months Ended 6 Months Ended 9 Months Ended
Dec. 15, 2025
USD ($)
state
Dec. 01, 2025
USD ($)
May 31, 2026
USD ($)
Feb. 28, 2026
USD ($)
business
May 31, 2025
USD ($)
May 31, 2026
USD ($)
May 31, 2026
USD ($)
Feb. 28, 2026
USD ($)
May 31, 2026
USD ($)
May 31, 2025
USD ($)
Business Combination [Line Items]                    
Number of businesses acquired | business       2            
Goodwill, acquired                 $ 1,749,379  
Foley Products Company LLC                    
Business Combination [Line Items]                    
Number Of States In Operation | state 9                  
Foley Products Company LLC                    
Business Combination [Line Items]                    
Consideration transferred $ 1,840,000                  
Inventory adjustment     $ 2,700       $ 562   2,700  
Goodwill, acquired $ 1,300,000                  
Acquisition-related cost, adjustment                 21,600 $ 2,700
Amortization expense increase (decrease), adjustment     12,100   $ 15,600       18,100 46,900
Pro forma net sales     2,483,245   2,127,253       6,860,649 5,989,935
Pro forma net earnings (loss)     $ 180,714   74,849       477,809 (109,929)
Interest expense, adjustment         27,000       $ 23,500 75,300
Foley Products Company LLC | Revision of Prior Period, Error Correction, Adjustment                    
Business Combination [Line Items]                    
Pro forma net sales       $ 75,100       $ 75,100    
Pro forma net earnings (loss)       $ 5,900       $ 5,400    
Foley Products Company LLC | Contract backlog                    
Business Combination [Line Items]                    
Useful Life     1 year     1 year 1 year   1 year  
Foley Products Company LLC | Minimum | Real Property                    
Business Combination [Line Items]                    
Life in years, asset 2 years                  
Foley Products Company LLC | Minimum | Personal Property                    
Business Combination [Line Items]                    
Life in years, asset 1 year                  
Foley Products Company LLC | Maximum | Real Property                    
Business Combination [Line Items]                    
Life in years, asset 38 years                  
Foley Products Company LLC | Maximum | Personal Property                    
Business Combination [Line Items]                    
Life in years, asset 20 years                  
Concrete Pipe And Precast, LLC                    
Business Combination [Line Items]                    
Consideration transferred   $ 675,000                
Inventory adjustment           $ 1,078     $ 4,000  
Goodwill, acquired   416,200                
Acquisition-related cost, adjustment                 12,400  
Amortization expense increase (decrease), adjustment     $ (7,600)   9,100       (13,800) 27,300
Cost of goods sold, adjustment                   4,000
Pro forma net sales     2,483,245   2,092,435       6,808,330 5,876,078
Pro forma net earnings (loss)     $ 176,925   $ 89,033       $ 475,504 $ (73,572)
Goodwill deductible for tax purposes   $ 584,100                
Concrete Pipe And Precast, LLC | Contract backlog                    
Business Combination [Line Items]                    
Useful Life   1 year                
Concrete Pipe And Precast, LLC | Minimum | Personal Property                    
Business Combination [Line Items]                    
Life in years, asset 1 year                  
Concrete Pipe And Precast, LLC | Maximum | Personal Property                    
Business Combination [Line Items]                    
Life in years, asset 20 years