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Commitments and Contingencies - Additional Information (Detail) (USD $) | 0 Months Ended | 3 Months Ended | 9 Months Ended |  | 0 Months Ended | 12 Months Ended |  |
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May 28, 2013 | Sep. 27, 2014 | Sep. 28, 2013 | Sep. 27, 2014 | Sep. 28, 2013 | Sep. 27, 2014 Revolving Credit Facility | May 28, 2013 Post-judgment Interest | Dec. 31, 2007 Damage Award | Mar. 31, 2007 Damage Award | Sep. 27, 2014 Guarantee Payment Of Insurance Claims | Sep. 27, 2014 Current Investments | Sep. 27, 2014 Non-Current Investments
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Investments providing collateral for letters of credit to guarantee insurance claims |  |  |  |  |  |  |  |  |  |  | $ 32,685,000 | $ 35,318,000
Cash equivalents providing collateral for letters of credit to guarantee insurance claims |  |  |  |  |  |  |  |  |  |  | 4,979,000 |
Total non-current investments |  |  |  |  |  |  |  |  |  |  |  | 70,805,000
Letters of credit outstanding |  |  |  |  |  | 33,045,000 |  |  |  | 66,182,000 |  |
Aggregate damage awarded | 55,200,000 |  |  |  |  |  |  |  |  |  |  |
Post-judgment interest rate |  |  |  |  |  |  | 6.25% |  |  |  |  |
Retained liability of self-insurance program |  |  |  |  |  |  |  |  | 5,000,000 |  |  |
Operating insurance and claims costs, production |  | $ 12,026,000 | $ 13,335,000 | $ 37,732,000 | $ 36,907,000 |  |  | $ 5,000,000 |  |  |  |

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- Definition The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 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 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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