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Shareholders' Equity (Detail) - shares shares in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Statement of Stockholders' Equity [Abstract] |  |  |
Shares outstanding at beginning of year (in shares) | 44,549 | 44,368 | 44,248
Treasury shares issued for: |  |  |
Restricted stock awards (in shares) | 245 | 181 | 110
Employee stock options exercised (in shares) | 0 | 0 | 10
Shares outstanding at end of year (in shares) | 44,794 | 44,549 | 44,368

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