Quarterly report pursuant to Section 13 or 15(d)

INCOME TAXES

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INCOME TAXES
3 Months Ended
Mar. 31, 2017
Income Tax Disclosure [Abstract]  
Income Taxes
INCOME TAXES
The Company and its subsidiaries are subject to U.S. federal income tax as well as income tax of multiple state jurisdictions. The Company is no longer subject to U.S. federal examinations for years before 2014 or state income tax examinations for years before 2012.
The effective tax rate was 30 percent for the three-month period ended March 31, 2017. The 2017 effective tax rate was lower than the statutory rate of 34 percent primarily due to state tax expense and other permanent differences, including the manufacturer's exemption. The effective tax rate of four percent for the three-month period ended March 31, 2016 was lower than the 34 percent statutory rate primarily due to state tax expense and permanent differences reducing the amount of tax benefit of the pre-tax loss for that period. The year over year change in the effective rate is primarily related to the difference in the Company’s operating results combined with the effect that the permanent differences had on the effective tax rate calculation, especially in the prior year.