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Income Taxes (Details) (USD $) | 12 Months Ended
--- | ---
Dec. 31, 2013 | Jan. 01, 2013 | Jan. 03, 2012 | Jan. 03, 2009
Income Taxes |  |  |  |
Income before income taxes | $ 156,450,000 | $ 133,974,000 | $ 129,143,000 |
Current: |  |  |  |
Federal | 28,754,000 | 39,792,000 | 17,093,000 |
State | 8,707,000 | 8,517,000 | 8,423,000 |
Total current | 37,461,000 | 48,309,000 | 25,516,000 |
Deferred: |  |  |  |
Federal | 5,342,000 | (11,055,000) | 9,284,000 |
State | (709,000) | (1,703,000) | (1,377,000) |
Total deferred | 4,633,000 | (12,758,000) | 7,907,000 |
Total provision | 42,094,000 | 35,551,000 | 33,423,000 |
Income Taxes Rate Reconciliation |  |  |  |
Tax at U.S. federal statutory rate (as a percent) | 35.00% | 35.00% | 35.00% |
State and district income taxes, net of federal income tax benefit (as a percent) | 3.30% | 3.30% | 3.60% |
FICA tip credit (as a percent) | (7.00%) | (7.70%) | (6.90%) |
HIRE Act retention tax credit (as a percent) |  |  | (1.40%) |
Other credits and incentives (as a percent) | (1.20%) | (0.60%) | (0.80%) |
Change in uncertain tax positions (as a percent) |  |  | (1.30%) |
Manufacturing deduction (as a percent) | (2.40%) | (2.80%) | (2.70%) |
Deferred compensation (as a percent) | (1.00%) | (0.70%) | 0.20% |
Other (as a percent) | 0.20% |  | 0.20% |
Effective tax rate (as a percent) | 26.90% | 26.50% | 25.90% |
Deferred tax assets: |  |  |  |
Employee benefits | 23,707,000 | 20,135,000 |  |
Insurance reserves | 15,622,000 | 15,284,000 |  |
Accrued rent | 22,954,000 | 23,945,000 |  |
Stock-based compensation | 13,822,000 | 18,908,000 |  |
Deferred income | 7,922,000 | 7,060,000 |  |
Tax credit carryforwards | 1,977,000 | 1,751,000 |  |
Other | 1,320,000 | 853,000 |  |
Subtotal | 87,324,000 | 87,936,000 |  |
Less: Valuation allowance | (185,000) | (258,000) |  |
Total | 87,139,000 | 87,678,000 |  |
Deferred tax liabilities: |  |  |  |
Property and equipment | (150,226,000) | (146,763,000) |  |
Inventory | (9,299,000) | (9,160,000) |  |
Prepaid expenses | (8,843,000) | (8,350,000) |  |
Total | (168,368,000) | (164,273,000) |  |
Net deferred tax liability | (81,229,000) | (76,595,000) |  |
Reported in consolidated balance sheets as: |  |  |  |
Deferred income taxes - current asset | 16,008,000 | 15,257,000 |  |
Deferred income taxes - noncurrent liability | (97,237,000) | (91,852,000) |  |
Net deferred tax liability | (81,229,000) | (76,595,000) |  |
Reconciliation of beginning and ending amount of unrecognized tax benefits |  |  |  |
Balance at beginning of year | 695,000 | 590,000 | 2,135,000 |
Additions based on tax positions taken during the current period | 254,000 | 230,000 | 199,000 |
Reductions related to settlements with taxing authorities and lapses of statutes of limitations | (147,000) | (125,000) | (1,744,000) |
Balance at end of year | 802,000 | 695,000 | 590,000 |
Unrecognized tax benefits, if recognized, would unfavorably affect the annual effective income tax rate | 800,000 |  |  |
Accrued interest related with uncertain tax positions | 100,000 | 100,000 |  |
Decrease in unrecognized tax benefits during the next twelve months based on the lapses of statutes of limitations for certain jurisdictions | 100,000 |  |  |
Compensation expense disallowed as per notice issued by IRS, under Internal Revenue Code section 162(m) |  |  |  | 5,100,000
State |  |  |  |
Tax credit carryforwards |  |  |  |
Tax credit carryforwards | 3,000,000 | 2,700,000 |  |
Tax credit carryforward valuation allowance | $ 200,000 | $ 300,000 |  |

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