INCOME TAXES (Details 1)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Effective Income Tax Rate Reconciliation [Line Items]
U.S. federal statutory income tax rate	35.00%	35.00%	35.00%
State income taxes, net of federal tax benefit	2.80%	2.60%	2.30%
Non-taxable municipal bond interest	(1.20%)	(1.70%)	(1.90%)
Foreign income tax rate differences	(0.80%)	(0.90%)	(2.20%)
Other	0.40%	0.20%	0.90%
Effective tax rate	36.20%	35.20%	34.10%