v3.26.1
REVENUE RECOGNITION - Revenue Recognition Method (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Feb. 28, 2026
Feb. 28, 2025
Feb. 28, 2026
Feb. 28, 2025
Disaggregation of Revenue [Line Items]        
Revenue recognized from contract liabilities     $ 19.9  
North America Steel Group | Fabricated Product and Installation Services | Recognized over Time        
Disaggregation of Revenue [Line Items]        
Contract as percent of total segment revenue (percent) 9.00% 7.00%   7.00%
North America Steel Group | Fabricated Product without Installation Services | Recognized over Time        
Disaggregation of Revenue [Line Items]        
Contract as percent of total segment revenue (percent) 9.00% 10.00%   10.00%