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Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $)
In Thousands, except Per Share data, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Statement Of Financial Position [Abstract]    
Preferred stock, par value $ 0.01 $ 0.01
Preferred stock, shares authorized 1,000 1,000
Preferred stock, issued      
Common stock, par value $ 0.01 $ 0.01
Common stock, shares authorized 200,000 200,000
Common stock, shares issued 99,465 101,207
Common stock, shares outstanding 99,465 101,207