EQUITY (Shares Purchased And Retired) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
EQUITY [Abstract]
Shares Purchased and Retired, Number	643	510	510
Shares Purchased and Retired, Total purchase price	$ 74,921	$ 60,303	$ 60,303
Shares Purchased and Retired, Average price per share	$ 116.49	$ 118.18	$ 118.18