Fair Value Measurements (Tables)

3 Months Ended

Apr. 30, 2018

Schedule of financial assets and liabilities measured at fair value on a recurring basis

The following tables present information about the Company’s financial assets and liabilities that have been measured at fair value on a recurring basis as of April 30, 2018 and January 31, 2018, and indicate the fair value hierarchy of the valuation inputs utilized to determine such fair value (in thousands):



	Fair Value Measurement at April 30, 2018
	Level 1		Level 2		Level 3		Total
Financial Assets:
Cash and cash equivalents:
Money market funds	$	94,300	$	—	$	—	$	94,300
Short-term investments:
U.S. government treasury securities	159,371		—		—		159,371
Total financial assets	$	253,671	$	—	$	—	$	253,671



	Fair Value Measurement at January 31, 2018
	Level 1		Level 2		Level 3		Total
Financial Assets:
Cash and cash equivalents:
Money market funds	$	45,918	$	—	$	—	$	45,918
Short-term investments:
U.S. government treasury securities	217,072		—		—		217,072
Total financial assets	$	262,990	$	—	$	—	$	262,990