Debt - Summary of Total Interest Expense Recognized (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Amortization of debt discount and debt issuance costs including initial purchaser discount			$ 4,557	$ 10,376
0.25% Convertible Senior Notes due 2022
Debt Instrument [Line Items]
Debt instrument, interest rate	0.25%	0.25%	0.25%	0.25%
0.25% contractual coupon	$ 220	$ 220	$ 441	$ 441
Amortization of debt discount and debt issuance costs including initial purchaser discount	510	3,446	925	6,852
Interest expense	$ 730	$ 3,666	$ 1,366	$ 7,293