EQUITY (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
EQUITY [Abstract]
Common stock, par value	$ 1	$ 1
Common stock issued in connection with business acquisitions		715,004
Shares of common stock issued to trustee under 401(k) savings and retirement plan		485,306	71,208
Net proceeds from issuance of common stock to the trustee under 401(k) savings and retirement plan		$ 30,620	$ 3,821
Number of shares held in treasury	0	0	0
Number of treasury shares purchased and retired	228,000
Cost of treasury shares purchased and retired	$ 21,475
Number of treasury shares purchased		0	0
Shares remaining under the current authorization repurchase program	3,183,416