ACQUISITIONS - ACQUISITION (Details) - USD ($) $ in Thousands		12 Months Ended
	Jan. 31, 2017	Mar. 31, 2017	Mar. 31, 2016	Mar. 31, 2015
Business Acquisition [Line Items]
Cash		$ 130,669	$ 0	$ 0
Contingent consideration		$ 6,465
Social Point
Business Acquisition [Line Items]
Cash	$ 175,000
Common stock (1,071,739 shares)	57,327
Contingent earn-out	6,409
Total	$ 238,736
Issuance of common stock in connection with acquisition (in shares)	1,071,739