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Stockholders' Equity (Tables) | 6 Months Ended
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Jun. 30, 2022
Equity [Abstract] |
Treasury Stock Acquisition | Treasury stock acquisitions during the six months ended June 30, 2022 were as follows (dollars in thousands):
| Shares |  |  | Cost |
Treasury shares at January 1, 2022 |  | 84,128,995 |  |  | $ | 1,372,641 |
Acquisitions pursuant to long-term incentive plan |  | 1,372,101 |  |  |  | 23,237 |
Other |  | 3,027 |  |  |  | 28 |
Treasury shares at June 30, 2022 |  | 85,504,123 |  |  | $ | 1,395,906 |

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