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Income Taxes | 6 Months Ended
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Jun. 30, 2019
Income Tax Disclosure [Abstract] |
Income Taxes | Income Taxes The following table presents Income tax expense and the effective tax rate:
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2019 |  | 2018 |  | 2019 |  | 2018
| (Dollars in thousands)
Income tax expense | $ | 42,960 |  |  | $ | 36,527 |  |  | $ | 70,257 |  |  | $ | 54,699 |
Effective tax rate | 23 | % |  | 22 | % |  | 18 | % |  | 17 | %
The effective tax rate for each of the periods in the table above differed from the statutory federal rate of 21% due to a lower foreign effective tax rate, offset by state income taxes and U.S. taxes on foreign earnings, net of foreign tax credits. Additionally, income tax expense for the six months ended June 30, 2019 was reduced by $12.7 million of excess tax benefits related to stock-based compensation. Income tax expense for the six months ended June 30, 2018 was reduced by $12.1 million of tax benefits recognized related to changes to provisional amounts previously recognized for the impact of the 2017 Tax Cuts and Jobs Act (“Tax Act”), and $6.0 million of excess tax benefits related to stock-based compensation. During the six months ended June 30, 2019, the Company completed the repatriation of $249.0 million of cash held by foreign subsidiaries, net of $13.1 million of foreign withholding taxes which were previously accrued in 2018.

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- Definition The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -URI http://asc.fasb.org/topic&trid=2144680 + Details
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