Stock-Based Compensation (Details 2) (USD $) Share data in Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended		12 Months Ended
	Jul. 02, 2013	Jul. 03, 2012	Jul. 02, 2013	Jul. 03, 2012	Jan. 01, 2013
Restricted Shares and Restricted Share Units
Outstanding at the end of the period (in shares)	1,500	1,100	1,500	1,100
Stock options
Stock-Based Compensation
Weighted average fair value at the grant date for options issued (in dollars per share)		$ 12.34
Weighted average assumptions under Black-Scholes valuation model
Expected option term		6 years 1 month 6 days
Expected stock price volatility (as a percent)		39.80%
Risk free interest rate (as a percent)		1.10%
Dividend yield (as a percent)		0.00%
Stock option activity, shares
Outstanding, at the beginning of the period (in shares)			7,414
Granted (in shares)			386
Exercised (in shares)			(1,819)
Forfeited or cancelled (in shares)			(154)
Outstanding at the end of the period (in shares)	5,827		5,827		7,414
Exercisable at the end of the period (in shares)	2,935		2,935
Weighted Average Exercise price
Outstanding at the beginning of the period (in dollars per share)			$ 23.98
Granted (in dollars per share)			$ 35.62
Exercised (in dollars per share)			$ 27.17
Forfeited or cancelled (in dollars per share)			$ 23.56
Outstanding at the end of the period (in dollars per share)	$ 23.77		$ 23.77		$ 23.98
Exercisable at the end of the period (in dollars per share)	$ 25.80		$ 25.80
Weighted Average Remaining Contractual Term
Outstanding at the beginning of the period			4 years 4 months 24 days		4 years 2 months 12 days
Outstanding at the end of the period			4 years 4 months 24 days		4 years 2 months 12 days
Exercisable at the end of the period			3 years 6 months
Aggregate Intrinsic Value
Outstanding at the beginning of the period			$ 66,682,000
Outstanding at the end of the period	108,392,000		108,392,000		66,682,000
Exercisable at the end of the period	48,630,000		48,630,000
Total intrinsic value of options exercised	11,700,000	3,700,000	19,800,000	8,100,000
Unrecognized Stock-based Compensation Expense
Total unrecognized stock-based compensation expenses related to unvested stock options, restricted shares and restricted share units	14,800,000		14,800,000
Expected weighted average period for recognition of compensation expense related to unvested stock option			2 years 2 months 12 days
Restricted Shares and Restricted Share Units
Unrecognized Stock-based Compensation Expense
Total unrecognized stock-based compensation expenses related to unvested stock options, restricted shares and restricted share units	28,100,000		28,100,000
Expected weighted average period for recognition of compensation expense related to unvested stock option			3 years 8 months 12 days
Restricted Shares and Restricted Share Units
Outstanding at the beginning of the period (in shares)			1,316
Granted (in shares)			406
Vested (in shares)			(168)
Forfeited (in shares)			(76)
Outstanding at the end of the period (in shares)	1,478		1,478
Fair value of shares vested	$ 6,000	$ 1,200,000	$ 2,400,000	$ 2,400,000
Weighted Average Fair Value
Outstanding at the beginning of the period (in dollars per share)			$ 26.91
Granted (in dollars per share)	$ 39.75	$ 31.08	$ 36.23
Vested (in dollars per share)			$ 14.46
Forfeited (in dollars per share)			$ 29.00
Outstanding at the end of the period (in dollars per share)	$ 30.77		$ 30.77