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CONSOLIDATED CONDENSED BALANCE SHEETS (Parenthetical) (USD $)
In Thousands, except Share data, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Accounts receivable, allowance for doubtful accounts $ 3,677 $ 3,674
Preferred stock, par value $ 0.01 $ 0.01
Preferred stock, authorized 1,000,000 1,000,000
Preferred stock, shares issued 0 0
Common stock, par value $ 0.01 $ 0.01
Common stock, authorized 300,000,000 300,000,000
Common stock, issued 188,958,501 186,487,246
Common stock, outstanding 146,139,916 144,219,189
Treasury stock, shares 42,818,585 42,268,057