Income Taxes	6 Months Ended
Jun. 30, 2017
Income Tax Disclosure [Abstract]
Income Taxes	NOTE G - Income Taxes The effective tax rate for the second quarter of 2017 was 30.8% compared to 25.5% for the second quarter of 2016, and the effective tax rate for the first half of 2017 was 30.8% compared to 152.3% in the same period of 2016. Substantially all of the difference in tax rates for both periods was due to the non-taxable favorable $109.6 adjustment to the European Commission (EC) charge in the second quarter of 2016 and the non-deductible expense of $833.0 for the EC charge in the first half of 2016.

Income Taxes

6 Months Ended

Jun. 30, 2017

NOTE G - Income Taxes

The effective tax rate for the second quarter of 2017 was 30.8% compared to 25.5% for the second quarter of 2016, and the effective tax rate for the first half of 2017 was 30.8% compared to 152.3% in the same period of 2016. Substantially all of the difference in tax rates for both periods was due to the non-taxable favorable $109.6 adjustment to the European Commission (EC) charge in the second quarter of 2016 and the non-deductible expense of $833.0 for the EC charge in the first half of 2016.