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INCOME TAXES (Details 1)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
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 3.50% 3.40% 2.80%
Non-taxable municipal bond interest (1.00%) (1.00%) (1.20%)
Foreign income tax rate differences (0.60%) 0.40% (0.80%)
Life insurance deferred tax reversal (14.20%) 0.00% 0.00%
Other 0.30% (0.10%) 0.40%
Effective tax rate 23.00% 37.70% 36.20%