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Income Taxes (Tables) | 9 Months Ended
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Sep. 30, 2020
Income Tax Disclosure [Abstract] |
Income Tax Expense From Continuing Operations And The Effective Tax Rate | The following table presents Income tax expense (benefit) and the effective tax rate:
| Three Months Ended September 30, |  |  |  | Nine Months Ended September 30, |  |
| 2020 |  | 2019 |  | 2020 |  | 2019
| (Dollars in thousands) |  |  |  |  |  |
Income tax expense (benefit) | $ | 13,908 |  |  | $ | 39,568 |  |  | $ | (90,226) |  |  | $ | 109,825 |
Effective tax rate | 8 | % |  | 20 | % |  | (16) | % |  | 19 | %

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- Definition Schedule of Effective Income Tax Rate and Expenses [Table Text Block] + References No definition available. + Details
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