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SEGMENT INFORMATION, REVENUES BY GEOGRAPHY AND SIGNIFICANT CUSTOMERS - Percentage of Revenues, Accounts Receivable (Detail)
3 Months Ended 9 Months Ended
Mar. 31, 2021
Jun. 30, 2020
Mar. 31, 2021
Mar. 31, 2020
Mar. 31, 2021
Mar. 31, 2020
Revenue, Major Customer [Line Items]            
Concentration percentage     100.00% 100.00% 100.00% 100.00%
Revenues            
Revenue, Major Customer [Line Items]            
Concentration percentage     100.00% 100.00% 100.00% 100.00%
Customer concentration risk | Revenues | Customer B            
Revenue, Major Customer [Line Items]            
Concentration percentage       10.00%   12.00%
Customer concentration risk | Accounts Receivable | Customer A            
Revenue, Major Customer [Line Items]            
Concentration percentage 10.00%          
Customer concentration risk | Accounts Receivable | Customer B            
Revenue, Major Customer [Line Items]            
Concentration percentage   17.00%