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Stockholders' Equity And Benefit Plans (Schedule Of Stock Options And Stock Appreciation Rights Outstanding And Exercisable) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
9 Months Ended
Oct. 01, 2011
Jul. 02, 2011
Oct. 01, 2011
Range Of Exercise Prices $0 - $12.83 [Member]
Oct. 01, 2011
Range Of Exercise Prices $12.83 - $25.66 [Member]
Oct. 01, 2011
Range Of Exercise Prices $25.66 - $38.49 [Member]
Oct. 01, 2011
Range Of Exercise Prices $38.49 - $64.15 [Member]
Oct. 01, 2011
Range Of Exercise Prices $64.15 - $76.97 [Member]
Oct. 01, 2011
Range Of Exercise Prices $76.97 - $89.80 [Member]
Oct. 01, 2011
Range Of Exercise Prices $89.80 - $115.46 [Member]
Oct. 01, 2011
Range Of Exercise Prices $115.46 - $128.29 [Member]
Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding [Line Items]          
Stock Options and Stock Appreciation Rights Outstanding, Number Of Shares1,2571,24363352511326241646
Stock Options and Stock Appreciation Rights Outstanding, Weighted-Average Exercise Price$ 40.69$ 37.39$ 11.29$ 16.87$ 33.03$ 43.12$ 69.53$ 81.23$ 93.29$ 123.75
Stock Options and Stock Appreciation Rights Outstanding, Weighted-Average Remaining Contractual Term (Years)6.06.41.05.25.96.29.38.99.53.3
Stock Options and Stock Appreciation Rights Exercisable, Number Of Shares524 631962013200032
Stock Options and Stock Appreciation Rights Exercisable, Weighted-Average Exercise Price$ 30.02 $ 11.29$ 18.90$ 30.04$ 43.12$ 0.00$ 0.00$ 0.00$ 121.73
Stock Options and Stock Appreciation Rights Outstanding, lower range  $ 0.00$ 12.83$ 25.66$ 38.49$ 64.15$ 76.97$ 89.80$ 115.46
Stock Options and Stock Appreciation Rights Outstanding, upper range  $ 12.83$ 25.66$ 38.49$ 64.15$ 76.97$ 89.80$ 115.46$ 128.29