SEGMENT AND GEOGRAPHIC INFORMATION - Summary of Total Revenue by Geography (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Total revenue	$ 302,192	$ 307,679	$ 843,192	$ 669,532
United States
Segment Reporting Information [Line Items]
Total revenue	181,934	206,899	537,404	480,341
Europe
Segment Reporting Information [Line Items]
Total revenue	57,345	50,765	139,874	99,003
Asia
Segment Reporting Information [Line Items]
Total revenue	27,578	21,625	76,747	39,337
Rest of the world
Segment Reporting Information [Line Items]
Total revenue	$ 35,335	$ 28,390	$ 89,167	$ 50,851