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Commitments and Contingencies - Additional Information (Detail) (USD $) | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |  | 1 Months Ended | 12 Months Ended |  |  | 1 Months Ended |
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May 28, 2013 | Jun. 29, 2013 | Jun. 30, 2012 | Jun. 29, 2013 | Jun. 30, 2012 | Dec. 29, 2012 | Jun. 29, 2013 Credit Agreement | May 28, 2013 Damage Award | Dec. 31, 2007 Damage Award | Jun. 29, 2013 Damage Award | Mar. 31, 2007 Damage Award | May 28, 2013 Prejudgment Interest | May 28, 2013 Attorney Fees and Post-judgment Interest | Jun. 29, 2013 Guarantee Payment Of Insurance Claims | Jun. 29, 2013 Current Investments | Jun. 29, 2013 Non-Current Investments
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Investments providing collateral for letters of credit to guarantee insurance claims |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 34,560,000 | $ 22,047,000
Total non-current investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 67,157,000
Letters of credit outstanding |  |  |  |  |  |  | 34,752,000 |  |  |  |  |  |  | 50,946,000 |  |
Aggregate damage awarded | 55,200,000 |  |  |  |  |  |  | 40,200,000 |  |  |  | 1,000,000 | 14,000,000 |  |  |
Post-judgment interest rate |  |  |  |  |  |  |  |  |  |  |  |  | 6.25% |  |  |
Operating insurance and claims costs, production |  | 11,848,000 | 9,306,000 | 23,654,000 | 20,401,000 |  |  |  | 5,000,000 |  |  |  |  |  |  |
Retained liability of self-insurance program |  |  |  |  |  |  |  |  |  |  | 5,000,000 |  |  |  |  |
Other receivables |  | $ 56,483,000 |  | $ 56,483,000 |  | $ 55,278,000 |  |  |  | $ 38,700,000 |  |  |  |  |  |

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- Definition The fair value of available-for-sale securities that serve as collateral for borrowings. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=28368275&loc=d3e5086-111524 + Details
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- Definition Amount of damages awarded to the plaintiff in the legal matter. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349 + Details
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