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CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
Dec. 31, 2013
Dec. 31, 2012
Statement of Financial Position [Abstract]    
Preferred stock, par value $ 0.01 $ 0.01
Preferred stock, authorized 10,000,000 10,000,000
Preferred stock, issued 0 0
Preferred stock, outstanding 0 0
Common stock, par value $ 0.01 $ 0.01
Common stock, authorized 90,000,000 90,000,000
Common stock, issued 39,377,000 38,796,000
Common stock, outstanding 28,948,000 29,096,000
Treasury stock 10,429,000 9,700,000