INCOME TAXES (Details 1)	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Income Tax Contingency [Line Items]
Statutory federal tax rate	35.00%	35.00%	35.00%	35.00%
Foreign rate differential	(4.10%)	0.30%	3.60%	(0.10%)
US Tax on Foreign Earnings	4.00%	0.00%	(3.40%)	0.00%
Domestic manufacturing/export tax incentive	0.00%	2.60%	0.00%	1.70%
Salt depletion	(17.30%)	(2.30%)	19.60%	(0.50%)
Dividends paid to CEOP	(0.80%)	(0.60%)	(1.10%)	(0.60%)
State income taxes, net	2.80%	2.30%	6.10%	0.90%
Change in valuation allowance	1.00%	1.40%	(0.80%)	1.30%
Change in tax contingencies	0.60%	0.80%	(7.20%)	0.20%
Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Percent	(3.50%)	0.20%	9.00%	(1.10%)
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent	(2.00%)	0.00%	0.70%	0.30%
Other, net	2.10%	2.10%	(0.80%)	0.10%
Effective tax rate	17.80%	36.60%	62.90%	33.80%