CASH DIVIDEND (Details) (USD $)	0 Months Ended		12 Months Ended
	Dec. 10, 2014	Jan. 22, 2014	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Dividends, Cash [Abstract]
Special year-end dividend (in dollars per share)	$ 0.10		$ 0.52	$ 0.45	$ 0.44
Increase in quarterly dividend approved on January 27, 2015 (as a percent)		14.30%
Increased quarterly dividend approved (in dollars per share)		$ 0.12
Number of consecutive years that the Company's dividend has increased by a minimum of 12%		13 years
Annual percentage increase in Company's dividend over the consecutive ten year period, minimum			12.00%