Annual report pursuant to Section 13 and 15(d)

RESTRUCTURING CHARGES - Schedule of Restructuring Expense (Details)

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RESTRUCTURING CHARGES - Schedule of Restructuring Expense (Details) - USD ($)
$ in Thousands
 12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
Restructuring Cost and Reserve [Line Items]      
Restructuring expense $ 4,006 $ 1,666 $ 11,214
Restructuring Charges [Abstract]      
Severance and benefits 2,293 406 6,139
Facilities 1,713 1,250 4,303
Other 0 10 772
Restructuring expense 4,006 1,666 11,214
Cost of revenue      
Restructuring Cost and Reserve [Line Items]      
Restructuring expense 0 0 539
Restructuring Charges [Abstract]      
Restructuring expense 0 0 539
Operating expense      
Restructuring Cost and Reserve [Line Items]      
Restructuring expense 4,006 1,666 10,675
Restructuring Charges [Abstract]      
Restructuring expense $ 4,006 $ 1,666 $ 10,675