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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)
In Thousands, except Per Share data
Sep. 30, 2011
Dec. 31, 2010
STOCKHOLDERS' EQUITY:  
Cumulative convertible preferred stock, par value$ 0.01$ 0.01
Cumulative convertible preferred stock, shares authorized1,0001,000
Cumulative convertible preferred stock, shares issued108108
Cumulative convertible preferred stock, shares outstanding108108
Cumulative convertible preferred stock, minimum liquidation preference$ 2.66$ 2.66
Common stock, par value$ 0.01$ 0.01
Common stock, shares authorized55,00055,000
Common stock, shares issued41,01040,407
Common stock, shares outstanding39,99339,388
Treasury stock, shares1,0181,019