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INCOME TAXES
6 Months Ended
Jun. 30, 2017
Income Tax Disclosure [Abstract]  
INCOME TAXES
INCOME TAXES

For the three and six months ended June 30, 2017, the Company’s effective tax rate was 36.5% and 36.6%, respectively. For the three and six months ended June 30, 2016, the Company’s effective income tax rate was (18.3)% and (175.9)%, respectively. For the three and six months ended June 30, 2017 and 2016, the Company’s effective tax rate was determined based on the estimated annual effective tax rate.
The effective tax rate for the three months and six months ended June 30, 2017 was slightly higher than would have been expected if the federal statutory rate were applied to income before tax. Items increasing the effective income tax rate include the valuation allowances associated with certain deferred tax assets, “subpart F income” resulting from controlled foreign corporation operations and foreign permanent components. Items decreasing the effective income tax rate include the favorable rate differences from foreign jurisdictions, unrealized foreign exchange gains and deductions on non-qualified stock options.

The effective tax rates for the three and six months ended June 30, 2016 were different from the federal statutory rate due to the mix of earnings across jurisdictions and certain items that are discrete to the quarter. Items discrete to the quarter include foreign exchange losses and increased losses in jurisdictions for which no taxable benefit can be recorded. These items are partially offset by the effect of the release of the valuation allowance in Switzerland due to improved earnings.