Annual report pursuant to Section 13 and 15(d)

SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details)

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SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details) - Accounts Receivable Allowances - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2016
Mar. 31, 2015
Mar. 31, 2014
VALUATION AND QUALIFYING ACCOUNTS      
Balance at the beginning of the period $ 11,041 $ 2,246 $ 2,142
Additions charged to costs and expenses (1,459) 10,138 242
Deductions (673) (1,343) (138)
Balance at the end of the period $ 8,909 $ 11,041 $ 2,246