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REVENUE RECOGNITION - Revenue Recognition Method (Details) - Americas Fabrication - Recognized over Time
3 Months Ended
Nov. 30, 2021
Nov. 30, 2020
Fabricated Product and Installation Services    
Disaggregation of Revenue [Line Items]    
Contract as percent of total segment revenue (percent) 9.00% 14.00%
Fabricated Product without Installation Services    
Disaggregation of Revenue [Line Items]    
Contract as percent of total segment revenue (percent) 9.00% 9.00%