SEGMENT AND GEOGRAPHIC INFORMATION - Summary of Total Revenue by Geography (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Segment Reporting Information [Line Items]
Total revenue	$ 268,952	$ 100,743
Reportable Geographical Components | United States
Segment Reporting Information [Line Items]
Total revenue	172,772	78,273
Reportable Geographical Components | Europe
Segment Reporting Information [Line Items]
Total revenue	41,855	12,607
Reportable Geographical Components | Asia
Segment Reporting Information [Line Items]
Total revenue	26,843	3,532
Reportable Geographical Components | Rest of the world
Segment Reporting Information [Line Items]
Total revenue	$ 27,482	$ 6,331