SEGMENT AND GEOGRAPHIC INFORMATION - REVENUE BY GEOGRAPHIC REGION (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Net revenue by geographic region:
Total net revenue	$ 311,552	$ 275,297
United States
Net revenue by geographic region:
Total net revenue	193,101	143,438
Europe
Net revenue by geographic region:
Total net revenue	73,519	100,223
Asia Pacific
Net revenue by geographic region:
Total net revenue	28,758	20,306
Canada and Latin America
Net revenue by geographic region:
Total net revenue	$ 16,174	$ 11,330