Inventories - Additional information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Inventories:
Provision for inventory write-downs	$ 1,200	$ 20,600	$ 4,054	$ 23,214