Revenue by Geographic Location - Schedule of Revenue by Geographic Areas (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2013
Segment Reporting Information [Line Items]
Total revenue	$ 110,391	$ 63,174	$ 29,664
United States [Member]
Segment Reporting Information [Line Items]
Total revenue	73,416	43,903	21,269
EMEA [Member]
Segment Reporting Information [Line Items]
Total revenue	21,043	10,824	4,572
APAC [Member]
Segment Reporting Information [Line Items]
Total revenue	8,732	4,574	2,261
Other [Member]
Segment Reporting Information [Line Items]
Total revenue	$ 7,200	$ 3,873	$ 1,562