Short-Term Investments (Tables)

12 Months Ended

Jun. 30, 2021

Investments Debt And Equity Securities [Abstract]

Schedule of Short-Term Investments

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

	June 30, 2021
	Amortized cost		Gross unrealized gains		Gross unrealized losses			Fair value
Corporate bonds	$	466,403	$	111	$	(55	)	$	466,459
U.S. treasury securities		155,663		16		(5	)		155,674
Asset-backed securities		26,391		16		(1	)		26,406
Certificates of deposit		6,775		—		—			6,775
	$	655,232	$	143	$	(61	)	$	655,314

	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
	$	123,395	$	590	$	(11	)	$	123,974

Schedule of Gross Unrealized Loss and Fair Values

As of June 30, 2021, approximately 100 of the more than 300 investment positions were in an unrealized loss position. The following table presents the gross unrealized losses and fair values of those investments that were in an unrealized loss position as of the dates presented (in thousands):

	June 30, 2021
	Fair value		Unrealized losses
Corporate bonds	$	152,485	$	(55	)
U.S. treasury securities		85,466		(5	)
Asset backed securities		8,089		(1	)
Total	$	246,040	$	(61	)

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