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INCOME TAXES - SCHEDULE OF EFFECTIVE INCOME TAX RATE RECONCILIATION (Details)
12 Months Ended
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Income Tax Disclosure [Abstract]      
Federal statutory rate 35.00% 35.00% 35.00%
State taxes, net of federal tax benefit 1.40% 1.00% 2.20%
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Percent 32.80% 0.00% 0.00%
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent (22.40%) 0.00% 0.00%
Nondeductible expenses (0.10%) (1.60%) (1.20%)
Foreign tax rate differences (1.30%) (0.40%) (1.10%)
Effective Income Tax Rate Reconciliation,Other Reconciling Items, Percent (10.50%) (19.90%) (8.80%)
Effective Income Tax Rate Reconciliation, Tax Contingency, Percent 0.00% 3.70% 2.70%
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent 0.40% 1.10% 0.00%
Other 0.10% 1.00% 0.20%
Effective income tax rate 35.40% 23.10% 31.40%