INCOME TAXES (Effective Income Tax Rate) (Details)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Income tax expense at federal statutory rate	35.00%	35.00%	35.00%
Income passed through to non-controlling interests	(51.10%)	(27.60%)	(24.20%)
State and local taxes, net of federal benefit	(1.40%)	0.90%	5.60%
Foreign taxes	0.30%	(0.90%)	1.40%
Permanent items	0.30%	(2.20%)	6.00%
Tax Cuts and Jobs Act	(0.40%)	0.00%	0.00%
Other, net	0.40%	(1.70%)	0.90%
Valuation allowance	1.30%	0.20%	(1.30%)
Total effective rate	(15.60%)	3.70%	23.40%