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Consolidated Balance Sheets Parenthetical (Equity) (Parentheticals) (USD $)
Dec. 31, 2012
Dec. 31, 2011
Statement of Financial Position [Abstract]    
Preferred Stock, Par or Stated Value Per Share $ 0.01 $ 0.01
Preferred Stock, Shares Authorized 3,000,000 3,000,000
Preferred Stock, Shares Outstanding 0 0
Common Stock, Par or Stated Value Per Share $ 0.01 $ 0.01
Common Stock, Shares Authorized 150,000,000 150,000,000
Common Stock, Shares, Issued 38,730,665 38,682,771
Common Stock, Shares, Outstanding 38,730,665 38,682,771