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REVENUE FROM CONTRACTS WITH CUSTOMERS - Schedule of Concentration Risk by Major Customer (Details) - Customer Concentration Risk - Revenue Benchmark
3 Months Ended 6 Months Ended
Nov. 30, 2022
Nov. 30, 2021
Nov. 30, 2022
Nov. 30, 2021
Customer A        
Concentration Risk [Line Items]        
Concentration risk 32.60% 0.00% 33.70% 0.00%
Customer B        
Concentration Risk [Line Items]        
Concentration risk 26.50% 0.00% 21.50% 0.00%
Customer C        
Concentration Risk [Line Items]        
Concentration risk 16.20% 0.00% 17.90% 0.00%
Customer D        
Concentration Risk [Line Items]        
Concentration risk 13.00% 0.00% 14.20% 0.00%
Customer E        
Concentration Risk [Line Items]        
Concentration risk 11.80% 0.00% 12.70% 0.00%