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CONSOLIDATED BALANCE SHEETS (Parentheticals) (USD $)
In Thousands, except Share data, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Condensed Consolidate Balance Sheets Parenthetical [Abstract]    
Allowance for Doubtful Accounts Receivable, Current $ 19,213 $ 22,212
Preferred Stock, Par or Stated Value Per Share $ 0.0001 $ 0.0001
Preferred Stock, Shares Authorized 5,000,000 5,000,000
Preferred Stock, Shares Issued 0 0
Preferred Stock, Shares Outstanding 0 0
Common Stock, Par or Stated Value Per Share $ 0.0001 $ 0.0001
Common Stock, Shares Authorized 125,000,000 125,000,000
Common Stock, Shares, Issued 70,711,439 59,600,713
Common Stock, Shares, Outstanding 68,128,919 57,026,957
Treasury Stock, Shares 2,582,520 2,582,520