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Stockholders' Equity And Benefit Plans (Narrative) (Details) (USD $) | 0 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 01, 2012 | Dec. 31, 2011 years | Jan. 01, 2011 | Jan. 02, 2010 | Jan. 03, 2009 | Jan. 06, 2007
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Common stock, shares authorized |  | 100,000,000 |  |  |  |
Common stock, par value |  | $ 0.01 |  |  |  |
Preferred stock, shares authorized |  | 1,000,000 |  |  |  |
Preferred stock, par value |  | $ 0.01 |  |  |  |
Preferred stock, shares issued |  | 0 | 0 |  |  |
Preferred stock, shares outstanding |  | 0 | 0 |  |  |
Repurchase and retirement of common stock, value |  |  |  | $ 0 |  |
Stock repurchase programs authorized, amount |  | 330,000,000 |  |  |  |
Repurchase of common stock, shares |  |  | 3,100,000 |  |  |
Repurchase of common stock under repurchase programs, value |  | (270,882,000) | (199,222,000) |  |  |
Minimum year of service |  | 1 |  |  |  |
Minimum hours worked |  | 1,000 |  |  |  |
Matches percentage of employee contributions | 50.00% | 50.00% |  |  |  |
Maximum percentage of employees compensation | 6.00% | 6.00% |  |  |  |
Minimum percentage of employees compensation |  | 4.00% |  |  |  |
Percentage of employee contributions between 4% and 6% of employee compensation |  | 25.00% |  |  |  |
Matching contributions made by the Company to 401(k) Plan, total |  | 1,600,000 | 1,300,000 | 186,000 |  |
Additional matching contributions percentage of employee compensation |  | 15.00% |  |  |  |
Percentage additional matching contributions |  | 0.00% | 0.00% | 0.00% |  |
Maximum percentage of eligible participants salary |  | 50.00% |  |  |  |
Percentage of bonus of eligible participants |  | 100.00% |  |  |  |
Total unrecognized compensation cost related to nonvested share-based compensation arrangements granted under the incentive plans |  | 22,000,000 |  |  |  |
Compensation cost expected to be recognized over weighted-average period (In years) |  | 2.5 |  |  |  |
Restricted stock units value |  |  |  | 100,000 |  |
Vesting period of nonemployee directors restricted stock units |  | one |  |  |  |
Options granted became exercisable on first anniversary of the date of grant |  | 50.00% |  |  |  |
Options granted became exercisable on second and third anniversary of the date of grant |  | 25.00% |  |  |  |
Outstanding option awards |  | 1,220,000 | 1,400,000 | 2,811,000 | 2,858,000 |
Shares issued to employees forfeited |  |  |  | 0 | 0 |
Excess tax benefits from stock-based compensation |  | 9,980,000 | 11,961,000 | 1,166,000 |  |
Fair value of restricted stock and restricted stock units, vested |  | 14,700,000 | 5,800,000 | 2,400,000 |  |
Asset related to invested balances recorded in intangibles and other assets |  | 2,900,000 |  |  |  |
Liability related to participants' invested balances recorded in accrued expenses other |  | 2,000,000 |  |  |  |
Stock contributed to restricted stock plan and reissued by the company to employees |  |  |  |  |  | 44,200
Maximum [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Maximum percentage of employees compensation |  | 3.00% |  |  |  |
2008 LTIP [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Common stock reserved for issuance |  | 4,685,030 |  |  |  |
Original vesting periods, minimum years |  | three |  |  |  |
Original vesting periods, maximum years |  | five |  |  |  |
Outstanding option awards |  | 524,501 |  |  |  |
Nonemployee Plan [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Outstanding option awards |  | 63,500 |  |  |  |
Period Authorized Fiscal Year 2009 No Termination Date [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Repurchase of common stock, shares |  |  |  | 0 |  |
Stock repurchase programs authorized, amount |  |  |  | 20,000,000 |  |
Common stock repurchase activity termination date |  |  |  | Completed |  |
Repurchase of common stock, shares |  |  | 500,000 |  |  |
Repurchase of common stock under repurchase programs, value |  |  | 20,000,000 |  |  |
Common Stock [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Common stock, shares issued |  | 68,370,020 | 67,881,522 | 66,900,000 | 66,502,000 |
Repurchase and retirement of common stock, shares |  |  |  | (45,000) |  |
Repurchase and retirement of common stock, value |  |  |  | 0 |  |
Repurchase of common stock, shares |  | 0 | 0 |  |  |
Repurchase of common stock under repurchase programs, value |  | $ 0 | $ 0 |  |  |
Stock contributed to restricted stock plan and reissued by the company to employees |  | 127,000 | 163,000 | 129,000 |  |

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