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CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)
Dec. 31, 2011
Dec. 31, 2010
CONSOLIDATED BALANCE SHEETS    
Preferred Stock, Par or Stated Value Per Share $ 1 $ 1
Preferred Stock, Shares Authorized 25,000,000 25,000,000
Preferred Stock, Shares Issued 85,900 75,800
Common Stock, Par or Stated Value Per Share $ 0.1 $ 0.1
Common Stock, Shares Authorized 250,000,000 250,000,000
Common Stock, Shares, Issued 130,273,000 123,320,000
Treasury Stock, Shares 7,082,000 8,090,000