Revenue by Geographic Location - Schedule of Revenue by Geographic Areas (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Segment Reporting Information [Line Items]
Total revenue	$ 63,440	$ 42,928	$ 122,047	$ 81,073
Other
Segment Reporting Information [Line Items]
Total revenue	3,627	2,600	6,955	5,000
United States
Segment Reporting Information [Line Items]
Total revenue	42,912	28,794	82,722	54,188
EMEA
Segment Reporting Information [Line Items]
Total revenue	12,078	8,274	23,007	15,681
APAC
Segment Reporting Information [Line Items]
Total revenue	$ 4,823	$ 3,260	$ 9,363	$ 6,204