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Share-Based Compensation (Schedule Of Non-Vested Shares Activity) (Details) - Restricted Stock [Member]
shares in Thousands
9 Months Ended
Oct. 01, 2016
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Outstanding at beginning of year, number of shares | shares 557
Outstanding at beginning of year, weighted-average grant date fair value | $ / shares $ 59.42
Granted, number of shares | shares 55
Granted, weighted-average grant date fair value | $ / shares $ 57.68
Vested, number of shares | shares (216)
Vested, weighted-average grant date fair value | $ / shares $ 53.74
Forfeited, number of shares | shares (44)
Forfeited, weighted-average grant date fair value | $ / shares $ 70.49
Outstanding at end of year, number of shares | shares 352
Outstanding at end of year, weighted-average grant date fair value | $ / shares $ 61.25