Investments

3 Months Ended

Mar. 31, 2017

Investments, Debt and Equity Securities [Abstract]

Investments

Investments

Cash, cash equivalents and investments as of March 31, 2017 included the following:

(in thousands)	AMORTIZED COST		GROSS UNREALIZED GAINS		GROSS UNREALIZED LOSSES			FAIR VALUE
Cash and cash equivalents:
Cash and money market accounts	$	133,535	$	—	$	—		$	133,535
Commercial paper	5,999		—		—			5,999
Total cash and cash equivalents	$	139,534	$	—	$	—		$	139,534
Investments:
Certificates of deposit (due within 1 year)	$	3,800	$	1	$	(1	)	$	3,800
Commercial paper (due within 1 year)	27,285		—		—			27,285
Corporate bonds (due within 1 year)	37,350		1		(106		)	37,245
Total investments	$	68,435	$	2	$	(107	)	$	68,330
Total cash, cash equivalents, and investments	$	207,969	$	2	$	(107	)	$	207,864

Cash, cash equivalents and investments as of December 31, 2016 included the following:

(in thousands)	AMORTIZED COST		GROSS UNREALIZED GAINS		GROSS UNREALIZED LOSSES			FAIR VALUE
Cash and cash equivalents:
Cash and money market accounts	$	196,445	$	—	$	—		$	196,445
Commercial paper	1,500		—		—			1,500
Total cash and cash equivalents	$	197,945	$	—	$	—		$	197,945
Investments:
Certificates of deposit (due within 1 year)	$	6,920	$	4	$	(1	)	$	6,923
Corporate bonds (due within 1 year)	27,615		4		(75		)	27,544
Government agencies (due within 1 year)	1,250		—		—			1,250
Total investments	$	35,785	$	8	$	(76	)	$	35,717
Total cash, cash equivalents, and investments	$	233,730	$	8	$	(76	)	$	233,662