RESTRUCTURING CHARGES - Schedule of Restructuring Liability (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Mar. 31, 2017
Restructuring Reserve [Roll Forward]
Restructuring charges to operations	$ 167	$ 2,034
Q4 FY2017 Plan
Restructuring Reserve [Roll Forward]
Balance at March 31, 2017	1,955
Restructuring charges to operations	645
Cash payments	(1,191)
Other adjustments	(434)
Balance at June 30, 2017	975		$ 1,955
Q4 FY2017 Plan | Employee-Related
Restructuring Reserve [Roll Forward]
Balance at March 31, 2017	1,550
Restructuring charges to operations	645		1,900
Cash payments	(1,153)
Other adjustments	(446)
Balance at June 30, 2017	596		1,550
Q4 FY2017 Plan | Facilities Related
Restructuring Reserve [Roll Forward]
Balance at March 31, 2017	405
Restructuring charges to operations	0		400
Cash payments	(38)
Other adjustments	12
Balance at June 30, 2017	$ 379		$ 405