Short-Term Investments (Tables)

9 Months Ended

Mar. 31, 2021

Investments Debt And Equity Securities [Abstract]

Schedule of Short-Term Investments

Short-term investments consisted of the following as of the dates presented (in thousands):

	March 31, 2021
	Amortized cost		Gross unrealized gains		Gross unrealized losses			Fair value
Corporate bonds	$	396,301	$	50	$	(150	)	$	396,201
U.S. treasury securities		84,193		22		—			84,215
Asset-backed securities		28,314		24		(6	)		28,332
Certificates of deposit		3,772		1		(1	)		3,772
Total	$	512,580	$	97	$	(157	)	$	512,520

	June 30, 2020
	Amortized cost		Gross unrealized gains		Gross unrealized losses			Fair value
Corporate bonds	$	70,781	$	360	$	(10	)	$	71,131
U.S. treasury securities		28,281		88		(1	)		28,368
Asset-backed securities		24,333		142		—			24,475
Total	$	123,395	$	590	$	(11	)	$	123,974

Schedule of Gross Unrealized Loss and Fair Values

The following table presents gross unrealized losses and fair values for those investments that were in an unrealized loss position as of the dates presented (in thousands):

	March 31, 2021
	Fair value		Unrealized losses
Corporate bonds	$	259,691	$	(150	)
Asset backed securities		15,381		(6	)
Certificates of deposit		1,254		(1	)
Total	$	276,326	$	(157	)

	June 30, 2020
	Fair value		Unrealized losses
Corporate bonds	$	9,258	$	(10	)
U.S. treasury securities		2,798		(1	)
Total	$	12,056	$	(11	)