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Debt - Additional Information (Detail) (USD $) | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | ---
Dec. 29, 2012 | Dec. 31, 2011 | Dec. 25, 2010 | Dec. 29, 2012 Revolving Credit Facilities | Jun. 29, 2012 Revolving Credit Facilities | Dec. 29, 2012 Revolving Credit Facilities Minimum | Jun. 29, 2012 Revolving Credit Facilities Minimum | Dec. 29, 2012 Revolving Credit Facilities Maximum | Dec. 29, 2012 Revolving Credit Facilities Maximum Maximum Leverage ration beyond which amount of cash dividends and other distributions to stockholders is limited | Dec. 29, 2012 Letter of Credit | Jun. 29, 2012 Letter of Credit | Jun. 29, 2012 Prior Credit Agreement
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Credit facility, initiation date |  |  |  | Jun. 29, 2012 |  |  |  |  |  |  |  |
Credit facility, expiration date |  |  |  | Jun. 29, 2017 |  |  |  |  |  |  |  |
Credit facility, borrowing capacity |  |  |  | $ 225,000,000 | $ 225,000,000 |  |  |  |  | $ 75,000,000 | $ 75,000,000 |
Credit Facility, borrowing |  |  |  |  | 60,000,000 |  |  |  |  |  |  | 60,000,000
Credit facility, unused credit commitment fee |  |  |  |  |  | 0.15% |  | 0.35% |  |  |  |
Weighed average Interest rate on borrowing |  |  |  | 1.22% |  |  |  |  |  |  |  |
Leverage Ratio |  |  |  |  |  |  |  |  | 2.5 |  |  |
Credit facility event of default, minimum percentage that a person or group should acquire outstanding capital stock |  |  |  |  |  | 25.00% | 25.00% |  |  |  |  |
Credit facility, debt covenants compliance |  |  |  |  |  | The Company is currently in compliance with all of the debt covenants under the Credit Agreement |  |  |  |  |  |
Interest paid | $ 3,156,000 | $ 3,133,000 | $ 3,785,000 |  |  |  |  |  |  |  |  |

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- Definition Line of Credit Facility Outstanding Stock Percentage that Should be Acquired to Trigger Event of Default + References No definition available. + Details
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- Definition The amount of cash paid for interest during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4297-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 95 -Paragraph 29 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3536-108585 + Details
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- Definition Amount borrowed under the credit facility as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Identification of whether the entity has been in compliance with any credit facility debt covenants during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 129 -Paragraph 2, 4 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 22 -Article 5 + Details
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