Income Taxes	6 Months Ended
Jul. 01, 2011
Income Taxes [Abstract]
Income Taxes	Note I — Income Taxes The tax expense of $6.4 million in the second quarter 2011 was calculated by applying a rate of 31.4% against income before income taxes while the tax expense of $6.1 million in the second quarter 2010 was calculated by applying a rate of 30.7% against the income before income taxes in that period. In the first half of 2011, the tax expense of $12.0 million was calculated by applying a rate of 31.9% against income before income taxes. In the first half of 2010, a rate of 36.9% was applied against income before income taxes to calculate the expense of $12.0 million. The differences between the statutory and effective rates in the second quarter and first half of 2011 and 2010 were due to the impact of the production deduction, percentage depletion, foreign source income and deductions, executive compensation, state and local taxes and other factors. In addition, the tax expense in the first half of 2010 included a discrete item of $1.4 million for the reduction in a deferred tax asset. The asset was reduced as a result of the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act. This legislation eliminates the income tax deduction related to prescription drug benefits provided to retirees and reimbursed under the Medicare Part D retiree drug subsidy program beginning in 2013. The tax rate in the second quarter and first half of 2011 was affected by immaterial discrete events. The effective tax rate was lower in the second quarter 2011 than the first quarter 2011 prior to the impact of any discrete events. This change in the tax rate did not have a material impact on net income or earnings per share in the second quarter 2011.

Income Taxes

6 Months Ended

Jul. 01, 2011

Note I — Income Taxes

The tax expense of $6.4 million in the second quarter 2011 was calculated by applying a rate of 31.4% against income before income taxes while the tax expense of $6.1 million in the second quarter 2010 was calculated by applying a rate of 30.7% against the income before income taxes in that period. In the first half of 2011, the tax expense of $12.0 million was calculated by applying a rate of 31.9% against income before income taxes. In the first half of 2010, a rate of 36.9% was applied against income before income taxes to calculate the expense of $12.0 million.

The differences between the statutory and effective rates in the second quarter and first half of 2011 and 2010 were due to the impact of the production deduction, percentage depletion, foreign source income and deductions, executive compensation, state and local taxes and other factors.

In addition, the tax expense in the first half of 2010 included a discrete item of $1.4 million for the reduction in a deferred tax asset. The asset was reduced as a result of the Patient Protection and Affordable Care Act, as amended by the Health Care and Education Reconciliation Act. This legislation eliminates the income tax deduction related to prescription drug benefits provided to retirees and reimbursed under the Medicare Part D retiree drug subsidy program beginning in 2013.

The tax rate in the second quarter and first half of 2011 was affected by immaterial discrete events.

The effective tax rate was lower in the second quarter 2011 than the first quarter 2011 prior to the impact of any discrete events. This change in the tax rate did not have a material impact on net income or earnings per share in the second quarter 2011.