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Income Taxes
6 Months Ended
Jun. 30, 2019
Income Tax Disclosure [Abstract]  
Income Taxes INCOME TAXES
The overall effective tax rate was 28.7% and 38.3% for the three and six months ended June 30, 2019, respectively and 11.2% and 17.7% for the three and six months ended June 30, 2018, respectively. The increase in the effective rate is primarily the result of non-deductible transaction related expenses incurred as a result of the acquisition of GE Transportation as well as increased estimated liabilities resulting from provisions of the Tax Cuts and Jobs Act.
As of June 30, 2019, the liability for income taxes associated with uncertain tax positions was $12.1 million, of which $11.0 million, if recognized, would favorably affect the Company’s effective income tax rate. As of December 31, 2018, the liability for income taxes associated with unrecognized tax benefits was $9.5 million, of which $8.4 million, if recognized, would favorably affect the Company's effective tax rate.
The Company includes interest and penalties related to uncertain tax positions in income tax expense. As of June 30, 2019, the total interest and penalties accrued was approximately $1.1 million. As of December 31, 2018, the total interest and penalties accrued was approximately was $0.9 million.
At this time, the Company believes it is reasonably possible that unrecognized tax benefits of approximately $6.2 million may change within the next 12 months due to the expiration of statutory review periods and current examinations.