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Prepaid Expenses and Other Current Assets, and Other Assets (Details) (USD $) | 9 Months Ended |
--- | --- | ---
Sep. 27, 2014 | Dec. 28, 2013
Prepaid expenses and other current assets |  |
Term loans to employees | $ 1,664,000 | $ 1,764,000
Other | 12,432,000 | 10,011,000
Total | 14,096,000 | 11,775,000
Other assets |  |
Forgivable loans to employees and non-employee experts | 44,624,000 | 51,083,000
Other | 2,633,000 | 3,538,000
Total | 47,257,000 | 54,621,000
Prepaid expenses and other assets disclosures |  |
Term of forgivable loans or advances to employees and non-employee experts, minimum | 3 years |
Term of forgivable loans or advances to employees and non-employee experts, maximum | 8 years |
Forgivable loans issued to future employees for future service | $ 10,200,000 |

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- Definition Represents the maximum term of forgivable loans or advances issuable to employees and non-employee experts. + References No definition available. + Details
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- Definition Represents the minimum term of forgivable loans or advances issuable to employees and non-employee experts. + References No definition available. + Details
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- Definition Represents the noncurrent portion of the amount of forgivable loans or term loans issuable to employees and non-employee experts. These loans are classified in "prepaid and other assets" and "other assets" on the balance sheet. + References No definition available. + Details
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- Definition Amounts due from an Entity employee, not to include stockholders or officers, which are usually due within 1 year (or 1 business cycle). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(k)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 3 -Subparagraph a -Article 5 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph k -Subparagraph 1 -Article 4 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3(a)(2)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39599-107864 + Details
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