SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Liabilities Under Self-Insurance Program) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES [Abstract]
Self-insured liabilities (undiscounted)	$ 49,310	$ 44,618
Insured liabilities (undiscounted)	$ 72,644	$ 16,787
Discount Rate	1.40%	1.44%
Other accounts and notes receivables	$ 67,631	$ 0
Investments and long-term receivables	16,133	15,810
Other current liabilities	(69,549)	(14,198)
Other noncurrent liabilities	(49,074)	(44,102)
Net liabilities (discounted)	$ (34,859)	$ (42,490)