Quarterly report pursuant to Section 13 or 15(d)

Income Taxes

Income Taxes
6 Months Ended
Jun. 30, 2019
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 2011.

For the three and six months ended June 30, 2019 and 2018, the effective income tax rates varied from the statutory federal income tax rate of 21.0%, 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 six months ended June 30, 2019 was 24.7% compared to a rate of 25.3% for the same period in 2018. The lower effective tax rate for the six months ended June 30,
2019 is the result of increased stock based compensation vesting and exercises when compared to the same period in 2018, which was impacted by forfeited performance shares. This was partly offset by increased executive compensation in 2019, which is not deductible for income tax purposes.