Share-Based Compensation-Valuation Parameters (Details 1) (USD $)	12 Months Ended
	Dec. 29, 2013	Dec. 30, 2012	Jan. 01, 2012
Fair value of stock options granted to employees, officers and non-employee board members and ESPP shares granted to employees
Dividend yield			0.00%
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	37.00%	43.00%	43.00%
Risk-free interest rate	0.74%	0.60%	1.49%
Expected term	4 years 5 months	4 years 4 months	4 years 4 months
Estimated annual forfeiture rate	8.51%	8.59%	8.57%
Weighted average fair value at grant date	$ 16.26	$ 16.45	$ 17.37
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			0.00%
Expected volatility	34.00%	41.00%	43.00%
Risk-free interest rate	0.11%	0.15%	0.13%
Expected term	0 years 6 months	0 years 6 months	0 years 6 months
Weighted average fair value at grant date	$ 13.08	$ 11.87	$ 12.17
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	1.63%	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	1.63%	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	0.00%	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	0.00%	0.00%