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COMMON STOCK AND OTHER PAID-IN CAPITAL (Tables)
6 Months Ended
Jun. 30, 2012
Equity [Abstract]  
Dividend Declarations
 Declaration Date  Amount Payable Date Shareholders of Record Date 
          
 February 10, 2012 $0.13 March 21, 2012 March 6, 2012 
 May 7, 2012 $0.17 June 20, 2012 June 5, 2012 
 August 2, 2012 $0.17 September 19, 2012 September 4, 2012