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Shareholders' Equity (Tables) | 12 Months Ended
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Dec. 31, 2021
Equity [Abstract] |
Summary of Outstanding Shares of Common Stock | The following table summarizes outstanding shares of common stock:
| Year ended December 31,
In thousands | 2021 |  | 2020 |  | 2019
Shares outstanding at beginning of year | 44,368 |  |  | 44,248 |  |  | 43,959 |
Treasury shares issued for: |  |  |  |  |
Restricted stock awards | 181 |  |  | 110 |  |  | 188 |
Employee stock options exercised | — |  |  | 10 |  |  | 101 |
Shares outstanding at end of year | 44,549 |  |  | 44,368 |  |  | 44,248 |

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- Definition Tabular disclosure of the change in common stock outstanding. + References No definition available. + Details
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