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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 9 Months Ended
Feb. 28, 2023
Feb. 28, 2022
Feb. 28, 2023
Feb. 28, 2022
Customer A        
Concentration Risk [Line Items]        
Concentration risk 26.00% 62.00% 31.00% 62.00%
Customer B        
Concentration Risk [Line Items]        
Concentration risk 25.00% 0.00% 23.00% 0.00%
Customer C        
Concentration Risk [Line Items]        
Concentration risk 16.00% 16.00% 17.00% 16.00%
Customer D        
Concentration Risk [Line Items]        
Concentration risk 13.00% 9.00% 14.00% 9.00%
Customer E        
Concentration Risk [Line Items]        
Concentration risk 13.00% 13.00% 13.00% 13.00%
Others        
Concentration Risk [Line Items]        
Concentration risk 7.00% 0.00% 3.00% 0.00%