Financial Instruments and Fair Value (Tables)

9 Months Ended

Oct. 31, 2016

Investments All Other Investments [Abstract]

Schedule of Available-for-Sale Securities at Fair Value

All of the investments are classified as available-for-sale securities and reported at fair value in the condensed consolidated balance sheets as follows:

	As of October 31, 2016
	AmortizedCost		UnrealizedGains		Unrealized Losses			Fair Value
	(in thousands)
Money market funds	$	66	$	—	$	—		$	66
Demand deposits		10,000		—		—			10,000
Commercial paper		9,085		—		—			9,085
Corporate bonds		24,086		6		(13	)		24,079
Asset-backed securities		9,065		2		(5	)		9,062
U.S. government securities		18,424		2		(10	)		18,416
Total cash equivalents and marketable securities	$	70,726	$	10	$	(28	)	$	70,708
	As of January 31, 2016
	AmortizedCost		Unrealized Gains		Unrealized Losses			Fair Value
	(in thousands)
Money market funds	$	530	$	—	$	—		$	530
Commercial paper		2,598		—		—			2,598
Corporate bonds		21,342		7		(9	)		21,340
Asset-backed securities		4,586		—		(1	)		4,585
U.S. government securities		9,274		4		(6	)		9,272
Agency bonds		2,044		—		(2	)		2,042
Total cash equivalents and marketable securities	$	40,374	$	11	$	(18	)	$	40,367

Schedule of Cash Equivalents and Marketable Securities

	As of
	October31,2016		January31,2016
	(in thousands)
Included in cash equivalents	$	12,063	$	530
Included in marketable securities		58,645		39,837
Total cash equivalents and marketable securities	$	70,708	$	40,367

Summary of Contractual Maturities of Investments

The contractual maturities of the investments at October 31, 2016 and January 31, 2016 were as follows:

	As of
	October31,2016		January31,2016
	(in thousands)
Due within one year	$	50,172	$	33,449
Due within one to two years		20,536		6,918
Total cash equivalents and marketable securities	$	70,708	$	40,367

Schedule of Fair Value of Financial Instruments Measured on Recurring Basis

The following table presents the fair value of the financial instruments measured on a recurring basis as of October 31, 2016 and January 31, 2016:

	As of October 31, 2016
	Total		Level 1		Level 2		Level 3
	(in thousands)
Money market funds	$	66	$	66	$	—	$	—
Demand deposits		10,000		10,000		—
Commercial paper		9,085		—		9,085		—
Corporate bonds		24,079		—		24,079		—
Asset-backed securities		9,062		—		9,062		—
U.S. government securities		18,416		—		18,416		—
Total cash equivalents and marketable securities	$	70,708	$	10,066	$	60,642	$	—
	As of January 31, 2016
	Total		Level 1		Level 2		Level 3
	(in thousands)
Money market funds	$	530	$	530	$	—	$	—
Commercial paper		2,598		—		2,598		—
Corporate bonds		21,340		—		21,340		—
Asset-backed securities		4,585		—		4,585		—
U.S. government securities		9,272		—		9,272		—
Agency bonds		2,042		—		2,042		—
Total cash equivalents and marketable securities	$	40,367	$	530	$	39,837	$	—