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Employee Benefit Plans (Schedule Of Stock Option Activity) (Details) - Stock Options [Member]
shares in Thousands
9 Months Ended
Oct. 01, 2017
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]  
Number of Shares, Beginning Balance | shares 1,884
Number of Shares, Granted | shares 328
Number of Shares, Exercised | shares (230)
Number of shares, Cancelled | shares 0
Number of shares, Expired | shares (1)
Number of Shares, Ending Balance | shares 1,981
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward]  
Beginning Balance (in dollars per share) | $ / shares $ 31.14
Granted (in dollars per share) | $ / shares 42.70
Exercised (in dollars per share) | $ / shares 27.83
Cancelled (in dollars per share) | $ / shares 0.00
Expired (in dollars per share) | $ / shares 31.70
Ending Balance (in dollars per share) | $ / shares $ 33.44