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Income Taxes (Tables) | 3 Months Ended
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Sep. 30, 2019
Income Tax Disclosure [Abstract] |
Schedule of Details of Income Taxes | The following table provides details of income taxes:
| Three Months Ended September 30,
(Dollar amounts in thousands) | 2019 |  | 2018
Income before income taxes | $ | 371,516 |  |  | $ | 427,568 |
Provision for income taxes | $ | 25,120 |  |  | $ | 31,624 |
Effective tax rate | 6.8 | % |  | 7.4 | %

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