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Income Taxes - Additional Information (Detail) (USD $) | 12 Months Ended |
--- | --- | ---
Dec. 29, 2013 | Dec. 30, 2012 Store | Jan. 01, 2012 | Jan. 02, 2011
Schedule Of Income Taxes [Line Items] |  |  |  |
Likelihood of benefit being realized upon settlement | Greater than 50 percent |  |  |
Unrecognized tax benefits, interest on income taxes expense | $ 100,000 | $ 100,000 | $ 100,000 |
Unrecognized tax benefits | 3,573,000 | 3,472,000 | 3,487,000 | 4,405,000
Unrecognized tax benefits that would impact effective tax rate | 2,100,000 | 2,100,000 | 2,200,000 |
Unrecognized tax benefits, interest on income taxes accrued | 600,000 | 500,000 | 400,000 |
Tax benefit to reflect increased tax basis in certain assets due to issuance of final tax regulations |  | 700,000 |  |
Number of remaining company-owned stores sold |  | 6 |  |
Deferred tax asset, valuation allowance |  | 900,000 |  |
Release Of Accrual |  |  |  |
Schedule Of Income Taxes [Line Items] |  |  |  |
Unrecognized tax benefits, interest on income taxes expense |  |  | $ 200,000 |

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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to disposition of an asset. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 + Details
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- Definition Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Unrecognized Tax Benefit -URI http://asc.fasb.org/extlink&oid=6527854 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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- Definition Amount of interest expense accrued for an underpayment of income taxes. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32718-109319 + Details
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- Definition The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 15A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=SL6600010-109319 + Details
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