Quarterly Financial Information (Detail) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Quarterly Financial Information [Line Items]
Total revenues	$ 34,796	$ 27,756	$ 4,915
Net income (loss)	$ (41,314)	$ (47,173)	$ (16,819)
Basic income (loss) per share	$ (0.37)	$ (0.52)	$ (0.24)
Diluted loss per share	$ (0.60)	$ (0.52)	$ (0.75)