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COMMITMENTS AND CONTINGENCIES - Narrative (Details)
1 Months Ended 12 Months Ended
Oct. 13, 2017
USD ($)
Mar. 31, 2016
patent
Mar. 31, 2018
USD ($)
Mar. 31, 2017
USD ($)
Mar. 31, 2016
USD ($)
Commitments and Contingencies Disclosure [Line Items]          
Number of patents allegedly infringed | patent   5      
Unconditional purchase obligation     $ 39,900,000    
Total rent expense under non-cancelable operating leases     16,600,000 $ 13,800,000 $ 12,800,000
Pre-Suit Damages          
Commitments and Contingencies Disclosure [Line Items]          
Loss contingency, damages awarded, value $ 3,500,000        
Post-Suit Damages          
Commitments and Contingencies Disclosure [Line Items]          
Loss contingency, damages awarded, value $ 2,250,000        
Minimum          
Commitments and Contingencies Disclosure [Line Items]          
Estimated litigation liability     $ 0