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Income Taxes (Tables) | 3 Months Ended
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Mar. 31, 2021
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, 2021 and 2020 are as follows:
(In thousands, except percentages) | 2021 |  | 2020
Three Months Ended March 31, | Amount |  | % |  | Amount |  | %
Income tax (benefit) expense at federal statutory rate | $ | 2,670 |  |  | 21.0 | % |  | $ | (5,647) |  |  | 21.0 | %
Foreign rate differences | 982 |  |  | 7.7 | % |  | 1,027 |  |  | (3.8) | %
U.S. Tax on Foreign Branch Income | 508 |  |  | 4.0 | % |  | 702 |  |  | (2.6) | %
State taxes, net of federal income tax benefit | 239 |  |  | 1.9 | % |  | (307) |  |  | 1.1 | %
Stock-based compensation | 191 |  |  | 1.5 | % |  | 251 |  |  | (0.9) | %
Non-deductible expenses | 155 |  |  | 1.2 | % |  | 190 |  |  | (0.7) | %
Valuation allowance for capital loss carry-forwards | 35 |  |  | 0.3 | % |  | 40 |  |  | (0.1) | %
Changes in estimates related to prior year tax provision | — |  |  | — | % |  | (601) |  |  | 2.2 | %
Tax impact of dividend received | (33) |  |  | (0.3) | % |  | — |  |  | — | %
Research and development tax credit | (182) |  |  | (1.4) | % |  | (205) |  |  | 0.8 | %
Foreign tax incentives | (1,468) |  |  | (11.5) | % |  | (1,676) |  |  | 6.2 | %
Income tax expense (benefit) at effective income tax rate | $ | 3,097 |  |  | 24.4 | % |  | $ | (6,226) |  |  | 23.2 | %

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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