Financial Instruments and Fair Value (Tables)

6 Months Ended

Jul. 31, 2019

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 July 31, 2019
	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
	(in thousands)
Money market funds	$	17,409	$	—	$	—		$	17,409
Commercial paper		59,934		—		—			59,934
Corporate bonds		96,237		525		(4	)		96,758
Asset-backed securities		14,460		42		(2	)		14,500
U.S. government securities		19,744		2		(18	)		19,728
Total cash equivalents and marketable debt securities	$	207,784	$	569	$	(24	)	$	208,329
	As of January 31, 2019
	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value
	(in thousands)
Money market funds	$	8,914	$	—	$	—		$	8,914
Certificates of Deposit		7,012		—		—			7,012
Commercial paper		68,233		—		—			68,233
Corporate bonds		87,250		170		(60	)		87,360
Asset-backed securities		11,607		3		(6	)		11,604
U.S. government securities		21,993		3		(13	)		21,983
Total cash equivalents and marketable debt securities	$	205,009	$	176	$	(79	)	$	205,106

Schedule of Cash Equivalents and Marketable Debt Securities

	As of
	July 31, 2019		January 31, 2019
	(in thousands)
Included in cash equivalents	$	55,220	$	40,245
Included in marketable debt securities		153,109		164,861
Total cash equivalents and marketable debt securities	$	208,329	$	205,106

Summary of Contractual Maturities of Investments

The contractual maturities of the investments at July 31, 2019 and January 31, 2019 were as follows:

	As of
	July 31, 2019		January 31, 2019
	(in thousands)
Due within one year	$	155,351	$	151,991
Due within one to three years		52,978		53,115
Total cash equivalents and marketable debt securities	$	208,329	$	205,106

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 July 31, 2019 and January 31, 2019:

	As of July 31, 2019
	Total		Level 1		Level 2		Level 3
	(in thousands)
Money market funds	$	17,409	$	17,409	$	—	$	—
Commercial paper		59,934		—		59,934		—
Corporate bonds		96,758		—		96,758		—
Asset-backed securities		14,500		—		14,500		—
U.S. government securities		19,728		—		19,728		—
Total cash equivalents and marketable debt securities	$	208,329	$	17,409	$	190,920	$	—
	As of January 31, 2019
	Total		Level 1		Level 2		Level 3
	(in thousands)
Money market funds	$	8,914	$	8,914	$	—	$	—
Certificates of Deposit		7,012		7,012		—		—
Commercial paper		68,233		—		68,233		—
Corporate bonds		87,360		—		87,360		—
Asset-backed securities		11,604		—		11,604		—
U.S. government securities		21,983		—		21,983		—
Total cash equivalents and marketable debt securities	$	205,106	$	15,926	$	189,180	$	—