Marketable Securities (Tables)

9 Months Ended

Sep. 30, 2017

Investments Debt And Equity Securities [Abstract]

The table below summarizes the Company’s investments (in thousands):

			Gross		Gross
	Amortized		Unrealized		Unrealized			Estimated
	Cost		Gains		(Losses)			Fair Value
September 30, 2017
Cash equivalents:
Money market funds	$	14,710	$	—	$	—		$	14,710
Total		14,710		—		—			14,710
Available-for-sale securities:
Commercial paper securities		106,759		2		(34	)		106,727
Corporate debt securities		80,177		—		(51	)		80,126
U.S. government-sponsored entity debt securities		36,300		—		(18	)		36,282
Total		223,236		2		(103	)		223,135
Total cash equivalents and available-for-sale securities	$	237,946		2	$	(103	)	$	237,845
December 31, 2016
Cash equivalents:
Money market funds	$	18,992	$	—	$	—		$	18,992
Total		18,992		—		—			18,992
Available-for-sale securities:
Commercial paper securities		23,112		73		—			23,185
Corporate debt securities		10,005		—		(1	)		10,004
U.S. government-sponsored entity debt securities		87,307		3		(25	)		87,285
Total		120,424		76		(26	)		120,474
Total cash equivalents and available-for-sale securities	$	139,416	$	76	$	(26	)	$	139,466

- Definition

Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities.

+ References + Details