Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' DEFICIT (Parenthetical)

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CONSOLIDATED STATEMENTS OF STOCKHOLDERS' DEFICIT (Parenthetical) - USD ($)
$ in Thousands
12 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Mar. 31, 2015
Statement of Stockholders' Equity [Abstract]      
Taxes on unrealized gain (loss) on revaluation of long-term intercompany balance $ 23 $ (15) $ 200