Goodwill and Intangible Assets (Tables)

6 Months Ended

Jul. 31, 2016

Goodwill And Intangible Assets Disclosure [Abstract]

Schedule of Components of Intangible Assets

Intangible assets consisted of the following (in thousands):

	Weighted Average Useful Life (1)			Gross Value		Accumulated Amortization			Net Carrying Value
July 31, 2016
Developed technology		2.5	years	$	14,273	$	(13,009	)	$	1,264
Trade name and other		6.9	years		1,201		(945	)		256
Intangibles, net				$	15,474	$	(13,954	)	$	1,520
January 31, 2016
Developed technology		2.5	years	$	14,273	$	(10,711	)	$	3,562
Trade name and other		6.9	years		1,201		(868	)		333
Intangibles, net				$	15,474	$	(11,579	)	$	3,895

(1) From the date of acquisition

Schedule of Expected Amortization Expense of Intangible Assets

As of July 31, 2016, expected amortization expense for intangible assets was as follows (in thousands):

Years ending January 31:
Remainder of 2017	$	977
2018		519
2019		23
2020		1
2021 and thereafter		—
	$	1,520