Revenue by Geographic Location - Schedule of Revenue by Geographic Areas (Detail) - USD ($) $ in Thousands	12 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Mar. 31, 2014
Segment Reporting Information [Line Items]
Total revenue	$ 181,309	$ 110,391	$ 63,174
United States [Member]
Segment Reporting Information [Line Items]
Total revenue	121,588	73,416	43,903
EMEA [Member]
Segment Reporting Information [Line Items]
Total revenue	34,602	21,043	10,824
APAC [Member]
Segment Reporting Information [Line Items]
Total revenue	14,118	8,732	4,574
Other [Member]
Segment Reporting Information [Line Items]
Total revenue	$ 11,001	$ 7,200	$ 3,873