FAIR VALUE MEASUREMENT OF ASSETS AND LIABILITIES (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2013	Dec. 31, 2012
Activities related to contingent consideration
Beginning balance	$ 16,000	$ 10,431	$ 25,000	$ 1,151
Additions to accrual		15,000		25,000
Payments		(230)		(625)
Fair value adjustments	(3,700)		(12,700)	(325)
Ending balance	12,300	25,201	12,300	25,201
Minimum
Contingent considerations
Potential reduction in fair value of contingent considerations	$ 0		$ 0