Investments (Tables)

12 Months Ended

Dec. 31, 2016

Balance Sheet Related Disclosures [Abstract]

Investments in Marketable Securities

Investments in marketable securities as of December 31, 2016 consisted of the following:

	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Fair Value
	(in thousands)
Available-for-sale — short-term:
U.S. Treasury, government and agency debt securities	$	23,237	$	1	$	(2	)	$	23,236
Corporate debt securities	17,314		—		—			17,314
Total	$	40,551	$	1	$	(2	)	$	40,550

Amortized Cost and Fair Value of the Company's Marketable Securities

The amortized cost and fair value of the Company's marketable securities at December 31, 2016, by contractual years-to-maturity are as follows:

	Amortized Cost		Fair Value
	(in thousands)
Due in less than 1 year	$	40,551	$	40,550
Due within 1-2 years	—		—
Total	$	40,551	$	40,550