ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Mar. 31, 2015
ACCRUED EXPENSES AND OTHER CURRENT LIABILITIES
Software development royalties	$ 400,322	$ 307,953
Compensation and benefits	28,083	47,763
Licenses	20,168	23,974
Marketing and promotions	17,206	21,708
Other	38,550	43,340
Accrued expenses and other current liabilities	$ 504,329	$ 444,738