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Stock Transactions And Stock-Based Compensation (Assumptions Used In The Black-Scholes Model To Value Options Granted) (Details)	9 Months Ended
	Sep. 28, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average volatility (percentage)	30.40%
Dividend yield (percentage)	0.20%
Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate (percentage)	0.70%
Expected years until exercise (years)	6.0
Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate (percentage)	1.70%
Expected years until exercise (years)	8.5

The period of time an equity-based award is expected to be outstanding. An equity-based award's expected term is generally determined based on, among other factors, the instrument's contractual term and the effects of employees' expected exercise and post-vesting employment termination behavior.

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