SEGMENT AND GEOGRAPHIC INFORMATION - Summary of Total Revenue by Geography (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Total revenue	$ 307,679	$ 122,833	$ 669,532	$ 334,284
Reportable Geographical Components | United States
Segment Reporting Information [Line Items]
Total revenue	206,899	88,905	480,341	254,260
Reportable Geographical Components | Europe
Segment Reporting Information [Line Items]
Total revenue	50,765	16,981	99,003	37,032
Reportable Geographical Components | Asia
Segment Reporting Information [Line Items]
Total revenue	21,625	8,075	39,337	19,464
Reportable Geographical Components | Rest of the world
Segment Reporting Information [Line Items]
Total revenue	$ 28,390	$ 8,872	$ 50,851	$ 23,528