Segment Information (Tables)

12 Months Ended

Jan. 31, 2018

Segment Reporting [Abstract]

Schedule of Revenue by Geographic Area

The following table sets forth revenue by geographic area based on the billing address of our customers (in thousands):

	Year Ended January 31,
	2016		2017		2018
United States	$	343,625	$	561,352	$	762,391
Rest of the world	96,708		166,625		260,628
Total revenue	$	440,333	$	727,977	$	1,023,019

Schedule of Long-Lived Assets by Geographic Area

Long-lived assets by geographic area are summarized as follows (in thousands):

	January 31,
	2017		2018
United States	$	78,692	$	85,430
Rest of the world	3,003		3,712
Total long-lived assets	$	81,695	$	89,142