Income Taxes |
3 Months Ended |
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Mar. 31, 2016 | |
| Income Tax Disclosure [Abstract] | |
| Income Taxes |
Income Taxes
The Company or one of its subsidiaries files income tax returns in the U.S. federal jurisdiction, various states and Canada. With a few exceptions, the Company is no longer subject to U.S. federal, state and local, or Canadian examinations by tax authorities for years before 2010.
For the three months ended March 31, 2016 and 2015, the effective income tax rates varied from the statutory federal income tax rate of 35.0%, primarily as a result of the effect of state income taxes, net of the federal benefit, and permanent differences between book and tax net income. The combined federal and state effective tax rate for the three months ended March 31, 2016 was 37.1% compared to a rate of 38.3% for the same period in 2015. The reduction in the 2016 effective tax rate was attributable to qualified production property deductions estimated in the first quarter of 2016.
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