Segment Information (Tables)

6 Months Ended

Jul. 31, 2017

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):

	Three Months Ended   July 31,				Six Months Ended   July 31,
	2016		2017		2016		2017
United States	$	122,103	$	165,466	$	233,330	$	311,960
Rest of the world	41,111		58,995		69,831		95,132
Total revenue	$	163,214	$	224,461	$	303,161	$	407,092

Schedule of Long-Lived Assets by Geographic Area

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

	As of January 31, 2017		As of July 31, 2017
United States	$	78,692	$	78,207
Rest of the world	3,003		3,643
Total long-lived assets	$	81,695	$	81,850