Segment Information - Schedule of Revenue by Geographic Region (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2017	Aug. 31, 2016	Aug. 31, 2017	Aug. 31, 2016
Segment Reporting Information [Line Items]
Revenue	$ 94,325	$ 87,930	$ 188,504	$ 174,584
North America
Segment Reporting Information [Line Items]
Revenue	70,384	65,855	140,571	130,952
United States
Segment Reporting Information [Line Items]
Revenue	66,595	62,413	132,857	124,006
Other
Segment Reporting Information [Line Items]
Revenue	3,789	3,442	7,714	6,946
Latin America
Segment Reporting Information [Line Items]
Revenue	1,324	1,225	2,641	2,350
Asia-Pacific
Segment Reporting Information [Line Items]
Revenue	6,010	5,235	11,932	10,284
EMEA
Segment Reporting Information [Line Items]
Revenue	$ 16,607	$ 15,615	$ 33,360	$ 30,998