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Pre- Tax loss Jurisdictions (Detail) - USD ($)
$ in Thousands
12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2019
Pre tax Income Loss [Line Items]      
Domestic $ (41,306) $ (47,172) $ (16,819)
Foreign 0    
Pre-tax loss $ (41,306) $ (47,172) $ (16,819)