Annual report pursuant to Section 13 and 15(d)

CASH DIVIDEND (Details)

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CASH DIVIDEND (Details) (USD $)
 0 Months Ended 12 Months Ended
Dec. 10, 2013
Jan. 22, 2013
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Dividends, Cash [Abstract]          
Special year-end dividend (in dollars per share) $ 0.09   $ 0.45 $ 0.44 $ 0.28
Increase in quarterly dividend approved on January 28, 2014 (as a percent)   16.70%      
Increased quarterly dividend approved (in dollars per share)   $ 0.105      
Number of consecutive years that the Company's dividend has increased by a minimum of 12%   12 years      
Annual percentage increase in Company's dividend over the consecutive ten year period, minimum     12.00%