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RESTRUCTURING CHARGES - Narrative (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Mar. 31, 2013
Restructuring Cost and Reserve [Line Items]      
Restructuring charges $ 0us-gaap_RestructuringCharges $ 0us-gaap_RestructuringCharges $ 1,065us-gaap_RestructuringCharges
Severance      
Restructuring Cost and Reserve [Line Items]      
Restructuring charges     $ 1,200us-gaap_RestructuringCharges
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember