Segment Information (Tables)

6 Months Ended

Jul. 31, 2016

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,
	2015		2016		2015		2016
United States	$	65,603	$	122,103	$	124,277	$	233,330
Rest of the world	19,058		41,111		34,461		69,831
Total revenue	$	84,661	$	163,214	$	158,738	$	303,161

Schedule of Long-Lived Assets by Geographic Area

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

	As of January 31, 2016		As of July 31, 2016
United States	$	50,501	$	75,425
Rest of the world	2,128		3,098
Total long-lived assets	$	52,629	$	78,523