Common Stock And Earnings Per Share (Narrative) (Details) - USD ($) shares in Thousands, $ in Thousands |
6 Months Ended | |
|---|---|---|
Jun. 30, 2018 |
Jul. 01, 2017 |
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| Common Stock And Earnings Per Share [Abstract] | ||
| Shares repurchased and retired | 39 | 0 |
| Repurchase of common stock | $ 2,943 | |
| Remaining approved repurchase amount | $ 47,057 | |
| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The cash outflow to reacquire common stock during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount remaining of a stock repurchase plan authorized. No definition available.
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| X | ||||||||||
- Definition Number of shares that have been repurchased and retired during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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