Investments (Tables)

12 Months Ended

Dec. 31, 2019

Investments, Debt and Equity Securities [Abstract]

Schedule of Available-for-sale Securities by Security Type

Cash equivalents, short-term investments and long-term investments as of December 31, 2019 were comprised as follows (in thousands):

	December 31, 2019
	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
Cash equivalents and short-term investments:
Money market funds, included in cash equivalents	$	50,242	$	—	$	—		$	50,242
Corporate debt securities	46,695		8		(4		)	46,699
U.S. Treasuries	59,058		26		(2		)	59,082
Government agency securities	12,796		24		—			12,820
Total cash equivalents and short-term investments	168,791		58		(6		)	168,843
Long-term investments:
Corporate debt securities	1,599		2		—			1,601
Total long-term investments	1,599		2		—			1,601
Total cash equivalents and investments	$	170,390	$	60	$	(6	)	$	170,444

Cash equivalents, short-term investments and long-term investments as of December 31, 2018 were comprised as follows (in thousands):

	December 31, 2018
	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
Cash equivalents and short-term investments:
Money market funds, included in cash equivalents	$	41,434	$	—	$	—		$	41,434
Corporate debt securities	65,887		2		(39		)	65,850
U.S. Treasuries	53,765		1		(8		)	53,758
Government agency securities	28,866		—		(34		)	28,832
Total cash equivalents and short-term investments	189,952		3		(81		)	189,874
Long-term investments:
Corporate debt securities	2,001		—		(8		)	1,993
Government agency securities	3,989		8		—			3,997
Total long-term investments	5,990		8		(8		)	5,990
Total cash equivalents and investments	$	195,942	$	11	$	(89	)	$	195,864