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COMMON STOCK AND OTHER PAID-IN CAPITAL (Tables)
12 Months Ended
Dec. 31, 2011
Equity [Abstract]  
Dividend Declarations
  Dividends declared per share 
  2011 2010 
 First Quarter$0.12 $0.11 
 Second Quarter$0.12 $0.11 
 Third Quarter$0.12 $0.11 
 Fourth Quarter$0.13 $0.12