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Income Taxes (Tables) | 3 Months Ended
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Mar. 31, 2016
Income Tax Disclosure [Abstract] |
Schedule Of Effective Income Tax Rate For Continuing Operations | The significant differences between the U.S. federal statutory rate and the effective income tax rate for the three months ended March 31, 2016 and 2015 are as follows:
| Percent of Income Before Income Taxes
Three Months Ended March 31, | 2016 |  | 2015
Income tax expense at federal statutory rate | 35.0 |  |  | 35.0 |
Non-deductible expenses | 1.0 |  |  | 0.7 |
Income tax contingency accruals and tax settlements | 0.9 |  |  | 0.8 |
State taxes, net of federal income tax benefit | 0.6 |  |  | 1.2 |
Valuation allowance for foreign operating loss carry-forwards | 0.1 |  |  | (0.4 | )
Changes in estimates related to prior year tax provision | (0.2 | ) |  | (0.2 | )
Foreign investment write-up | (0.3 | ) |  | — |
Research and development tax credit | (0.9 | ) |  | — |
Foreign rate differences | (0.9 | ) |  | (1.4 | )
Unremitted earnings from foreign operations | (0.9 | ) |  | 1.0 |
Valuation allowance for capital loss carry-forwards | (1.1 | ) |  | (1.6 | )
Domestic production activities deduction | (2.7 | ) |  | (2.5 | )
Effective income tax rate | 30.6 |  |  | 32.6 |

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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 + Details
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