Quarterly report pursuant to Section 13 or 15(d)

Consolidated Balance Sheets (Parenthetical)

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Consolidated Balance Sheets (Parenthetical) - USD ($)
$ in Thousands
Sep. 30, 2015
Dec. 31, 2014
Consolidated Balance Sheets [Abstract]    
Allowance for doubtful accounts receivable $ 1,579 $ 2,584
Common stock, par value per share $ 0.01 $ 0.01
Common stock, shares authorized 190,000,000 190,000,000
Common stock, shares outstanding 89,310,243 89,076,578