SEGMENT AND GEOGRAPHIC INFORMATION - Summary of Total Revenue by Geography (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Segment Reporting Information [Line Items]
Total revenue	$ 268,944	$ 302,192	$ 751,563	$ 843,192
United States
Segment Reporting Information [Line Items]
Total revenue	156,511	175,591	448,761	524,958
Europe
Segment Reporting Information [Line Items]
Total revenue	53,938	58,058	132,488	140,795
Asia
Segment Reporting Information [Line Items]
Total revenue	23,076	26,360	67,804	70,978
Rest of the world
Segment Reporting Information [Line Items]
Total revenue	$ 35,419	$ 42,183	$ 102,510	$ 106,461