Stock-Based Compensation (Details 2) (USD $) | 3 Months Ended | 9 Months Ended | 12 Months Ended |
Share data in Thousands, except Per Share data, unless otherwise specified | Oct. 01, 2013 | Oct. 02, 2012 | Oct. 01, 2013 | Oct. 02, 2012 | Jan. 01, 2013 |
Restricted Shares and Restricted Share Units | ' | ' | ' | ' | ' |
Outstanding at the end of the period (in shares) | 1,600 | 1,200 | 1,600 | 1,200 | ' |
Stock options | ' | ' | ' | ' | ' |
Stock-Based Compensation | ' | ' | ' | ' | ' |
Weighted average fair value at the grant date for options issued (in dollars per share) | ' | $10.27 | ' | ' | ' |
Weighted average assumptions under Black-Scholes valuation model | ' | ' | ' | ' | ' |
Expected option term | ' | '6 years 1 month 6 days | ' | ' | ' |
Expected stock price volatility (as a percent) | ' | 37.30% | ' | ' | ' |
Risk free interest rate (as a percent) | ' | 1.10% | ' | ' | ' |
Dividend yield (as a percent) | ' | 1.40% | ' | ' | ' |
Stock option activity, shares | ' | ' | ' | ' | ' |
Outstanding, at the beginning of the period (in shares) | ' | ' | 7,414 | ' | ' |
Granted (in shares) | ' | ' | 386 | ' | ' |
Exercised (in shares) | ' | ' | -2,358 | ' | ' |
Forfeited or cancelled (in shares) | ' | ' | -177 | ' | ' |
Outstanding at the end of the period (in shares) | 5,265 | ' | 5,265 | ' | 7,414 |
Exercisable at the end of the period (in shares) | 2,646 | ' | 2,646 | ' | ' |
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) | ' | ' | $26.67 | ' | ' |
Forfeited or cancelled (in dollars per share) | ' | ' | $23.36 | ' | ' |
Outstanding at the end of the period (in dollars per share) | $23.65 | ' | $23.65 | ' | $23.98 |
Exercisable at the end of the period (in dollars per share) | $24.97 | ' | $24.97 | ' | ' |
Weighted Average Remaining Contractual Term | ' | ' | ' | ' | ' |
Outstanding at the beginning of the period | ' | ' | '4 years 3 months 18 days | ' | '4 years 2 months 12 days |
Outstanding at the end of the period | ' | ' | '4 years 3 months 18 days | ' | '4 years 2 months 12 days |
Exercisable at the end of the period | ' | ' | '3 years 4 months 24 days | ' | ' |
Aggregate Intrinsic Value | ' | ' | ' | ' | ' |
Outstanding at the beginning of the period | ' | ' | $66,682,000 | ' | ' |
Outstanding at the end of the period | 110,260,000 | ' | 110,260,000 | ' | 66,682,000 |
Exercisable at the end of the period | 51,926,000 | ' | 51,926,000 | ' | ' |
Total intrinsic value of options exercised | 9,700,000 | 3,400,000 | 29,400,000 | 11,600,000 | ' |
Unrecognized Stock-based Compensation Expense | ' | ' | ' | ' | ' |
Total unrecognized stock-based compensation expenses related to unvested stock options, restricted shares and restricted share units | 13,300,000 | ' | 13,300,000 | ' | ' |
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 | 28,300,000 | ' | 28,300,000 | ' | ' |
Expected weighted average period for recognition of compensation expense related to unvested stock option | ' | ' | '3 years 7 months 6 days | ' | ' |
Restricted Shares and Restricted Share Units | ' | ' | ' | ' | ' |
Outstanding at the beginning of the period (in shares) | ' | ' | 1,316 | ' | ' |
Granted (in shares) | ' | ' | 534 | ' | ' |
Vested (in shares) | ' | 0 | -173 | ' | ' |
Forfeited (in shares) | ' | ' | -106 | ' | ' |
Outstanding at the end of the period (in shares) | 1,571 | ' | 1,571 | ' | ' |
Fair value of shares vested | $76,000 | ' | $2,500,000 | $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) | $42.63 | $34 | $37.77 | ' | ' |
Vested (in dollars per share) | ' | ' | $14.49 | ' | ' |
Forfeited (in dollars per share) | ' | ' | $30.15 | ' | ' |
Outstanding at the end of the period (in dollars per share) | $31.75 | ' | $31.75 | ' | ' |