Short-Term Investments (Tables)

6 Months Ended

Dec. 31, 2019

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):

	December 31, 2019
	Amortized cost		Gross unrealized gains		Gross unrealized losses			Fair value
U.S. treasury securities	$	42,648	$	38	$	—		$	42,686
Corporate bonds		17,378		7		(3	)		17,382
Asset-backed securities		8,069		1		(3	)		8,067
	$	68,095	$	46	$	(6	)	$	68,135

	June 30, 2019
	Amortized cost		Gross unrealized gains		Fair value
U.S. treasury securities	$	64,683	$	75	$	64,758
Corporate bonds		4,787		—		4,787
Asset-backed securities		2,424		—		2,424
	$	71,894	$	75	$	71,969

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 December 31, 2019 (in thousands):

	December 31, 2019
	Fair value		Unrealized Losses
Corporate bonds	$	4,498	$	(3	)
Asset-backed securities		3,951		(3	)
Total	$	8,449	$	(6	)

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):

	December 31, 2019
	Fair value		Unrealized losses
Corporate bonds	$	94,472	$	(27	)
Certificates of deposit		13,025		(2	)
U.S. treasury securities		15,185		(1	)
Total	$	122,682	$	(30	)

	June 30, 2019
	Fair value		Unrealized losses
Corporate bonds	$	46,065	$	(12	)
Certificates of deposit		12,027		(1	)
Total	$	58,092	$	(13	)