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CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
In Thousands, except Per Share data, unless otherwise specified
Dec. 31, 2011
Dec. 31, 2010
Preferred stock, par value per share $ 0.01 $ 0.01
Preferred stock, shares authorized 10,000 10,000
Preferred stock, shares issued 0 0
Preferred stock, shares outstanding 0 0
Common stock, par value per share $ 0.01 $ 0.01
Common stock, shares authorized 90,000 90,000
Common stock, shares issued 38,291 38,002
Common stock, shares outstanding 30,091 31,162
Treasury shares 8,200 6,840