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COMMITMENTS AND CONTINGENCIES - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
Commitments and Contingencies Disclosure [Line Items]      
Fair value of contingent liability $ 7,293 $ 4,484  
Unconditional purchase obligation 54,100    
Total rent expense under non-cancelable operating leases 12,800 $ 5,900 $ 6,000
Communications Business      
Commitments and Contingencies Disclosure [Line Items]      
Fair value of contingent liability 2,700    
Fair value of future consideration to be paid 2,700    
Simena LLC      
Commitments and Contingencies Disclosure [Line Items]      
Fair value of contingent liability 8,000    
Simena LLC | Present value of future consideration      
Commitments and Contingencies Disclosure [Line Items]      
Fair value of contingent liability $ 4,600