Share-Based Compensation-Valuation Parameters (Details 1) (USD $)	3 Months Ended
	Mar. 30, 2014	Mar. 31, 2013
Employee Stock Option [Member]
Fair value of stock options granted to employees, officers and non-employee board members and ESPP shares granted to employees
Expected volatility	32.00%	38.00%
Risk-free interest rate	1.22%	0.67%
Expected term	4 years 5 months	4 years 5 months
Estimated annual forfeiture rate	8.51%	8.59%
Weighted-average fair value at grant date	$ 18.53	$ 16.46
Employee Stock Purchase Plan Shares [Member]
Fair value of stock options granted to employees, officers and non-employee board members and ESPP shares granted to employees
Expected volatility	31.00%	33.00%
Risk-free interest rate	0.08%	0.13%
Expected term	0 years 6 months	0 years 6 months
Weighted-average fair value at grant date	$ 17.25	$ 12.54
Maximum [Member] | Employee Stock Option [Member]
Fair value of stock options granted to employees, officers and non-employee board members and ESPP shares granted to employees
Dividend yield	1.44%	0.00%
Maximum [Member] | Employee Stock Purchase Plan Shares [Member]
Fair value of stock options granted to employees, officers and non-employee board members and ESPP shares granted to employees
Dividend yield	1.65%	0.00%
Minimum [Member] | Employee Stock Option [Member]
Fair value of stock options granted to employees, officers and non-employee board members and ESPP shares granted to employees
Dividend yield	1.25%	0.00%
Minimum [Member] | Employee Stock Purchase Plan Shares [Member]
Fair value of stock options granted to employees, officers and non-employee board members and ESPP shares granted to employees
Dividend yield	1.65%	0.00%