COMMITMENTS AND CONTINGENCIES - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Mar. 31, 2013	Mar. 31, 2012 Minimum Employee	Sep. 30, 2013 Simena LLC liability	Sep. 30, 2013 Simena LLC Present value of future consideration
Commitments and Contingencies Disclosure [Line Items]
Number of contingent liabilities recorded				2
Number of contingent liabilities recorded pertaining to future consideration to be paid to acquiree				1
Fair value of contingent liability	$ 4,139	$ 5,087		$ 8,000	$ 4,100
Contractual non-compliance liabilities incurred by Simena	$ 148	$ 246		$ 1,600	$ 148
Number of former employees that are party to potential Anti-Trust laws violation			1