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Consolidated Balance Sheets (Unaudited) (Parenthetical) - $ / shares
shares in Thousands
Mar. 31, 2017
Mar. 31, 2016
Statement of Financial Position [Abstract]    
Common stock, par value (in usd per share) $ 0.01 $ 0.01
Common stock, shares authorized 100,000 100,000
Common stock, shares issued 62,437 60,978
Common stock, shares outstanding 62,437 60,978