Short-Term Investments (Tables)

3 Months Ended

Sep. 30, 2020

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):

	September 30, 2020
	Amortized cost		Gross unrealized gains		Gross unrealized losses			Fair value
U.S. treasury securities	$	45,007	$	49	$	(2	)	$	45,054
Corporate bonds		69,360		214		(1	)		69,573
Asset-backed securities		21,455		89		—			21,544
Total	$	135,822	$	352	$	(3	)	$	136,171

	June 30, 2020
	Amortized cost		Gross unrealized gains		Gross unrealized losses			Fair value
U.S. treasury securities	$	28,281	$	88	$	(1	)	$	28,368
Corporate bonds		70,781		360		(10	)		71,131
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):

	September 30, 2020
	Fair value		Unrealized losses
U.S. treasury securities	$	9,502	$	(2	)
Corporate bonds		3,258		(1	)
Total	$	12,760	$	(3	)

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

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

	September 30, 2020
	Fair value		Unrealized losses
Corporate bonds	$	58,699	$	(14	)
Certificates of deposit		17,255		(2	)
Municipal bonds		6,064		(2	)
Total	$	82,018	$	(18	)

	June 30, 2020
	Fair value		Unrealized losses
Corporate bonds	$	31,785	$	(7	)
Certificates of deposit		20,006		(3	)
U.S. treasury securities		14,990		(1	)
Total	$	66,781	$	(11	)