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Condensed Consolidated Balance Sheets (Parenthetical) (USD $)
In Thousands, except Share data
Sep. 30, 2011
Dec. 31, 2010
Condensed Consolidated Balance Sheets [Abstract]  
Accounts receivable, allowance$ 4,822$ 5,597
Series A conditional convertible preferred stock, par value$ 0.01$ 0.01
Series A conditional convertible preferred stock, shares authorized5,608,0005,608,000
Series A conditional convertible preferred stock, shares issued4,820,0005,608,000
Preferred stock, par value$ 0.01$ 0.01
Preferred stock, shares authorized4,392,0004,392,000
Preferred stock, shares outstanding00
Common stock, par value$ 0.01$ 0.01
Common stock, shares authorized200,000,000200,000,000
Common stock, shares issued40,385,00039,186,000