Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED BALANCE SHEETS (Parenthetical)

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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Oct. 31, 2015
Apr. 30, 2015
Allowance for doubtful accounts $ 11,291 $ 9,958
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 150,000,000 150,000,000
Common stock, shares issued 63,586,000 62,863,000
Common stock, shares outstanding 51,287,000 50,573,000