Quarterly report pursuant to Section 13 or 15(d)

CONSOLIDATED BALANCE SHEETS (Parenthetical)

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CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)
$ in Thousands
Dec. 31, 2016
Sep. 30, 2016
Statement of Financial Position [Abstract]    
Allowance for doubtful accounts,receivable current $ 4,283 $ 4,226
Common stock, shares authorized 100,000,000 100,000,000
Common stock, shares outstanding 64,664,000 65,223,000
Common stock, shares issued 64,664,000 65,223,000