Goodwill and Intangible Assets (Tables)

12 Months Ended

Jan. 31, 2018

Goodwill And Intangible Assets Disclosure [Abstract]

Summary of Goodwill Activity

Goodwill activity for the year ended January 31, 2017 is reflected in the following table (in thousands):

Balance as of January 31, 2016	$	14,301
Goodwill acquired—Wagon		1,992
Balance as of January 31, 2017		16,293

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
January 31, 2018
Developed technology		2.5	years	$	14,273	$	(14,273	)	$	—
Trade name and other		6.9	years		1,201		(1,177	)		24
Intangibles, net				$	15,474	$	(15,450	)	$	24
January 31, 2017
Developed technology		2.5	years	$	14,273	$	(13,908	)	$	365
Trade name and other		6.9	years		1,201		(1,023	)		178
Intangibles, net				$	15,474	$	(14,931	)	$	543

(1) From the date of acquisition