Income Taxes - Components of Income (Loss) before Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2021
Income Tax Disclosure [Abstract]
U.S.	$ (974,074)	$ (780,699)	$ (330,313)
Foreign	(15,171)	55,868	(113,057)
Loss before income taxes	$ (989,245)	$ (724,831)	$ (443,370)