Fair Value Measurements - Assets and Liabilities Measured at Fair Value on a Non-Recurring Basis (Details) (USD $)	Jun. 30, 2013	Dec. 30, 2012
Fair Value Disclosures [Abstract]
Marketable Securities, Restricted, Noncurrent	$ 10,231,000	$ 10,885,000
Cost Method Investments	12,651,000	14,918,000
Accounts Payable, Related Parties	400,000	700,000
Notes Receivable, Related Parties, Noncurrent	1,700,000
Equity Method Investments	$ 112,193,000	$ 111,516,000

Amount for accounts payable to related parties.

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This item represents the aggregate carrying amount of all cost-method investments as reported on or included in the balance sheet. The original cost of the investments may differ from the aggregate carrying amount disclosed due to various adjustments such as: (i) dividends received in excess of earnings after the date of investment that are considered a return of investment and therefore recorded as reductions to cost of the investment, or (ii) a series of operating losses of an investee or other factors which may indicate that a decrease in value of the investment has occurred which is other than temporary and accordingly such decrease in value has been recognized.

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- Definition

Total debt and equity financial instruments including: (1) securities held-to-maturity, (2) trading securities, and (3) securities available-for-sale which are intended to be held for greater than one year or the normal operating cycle, whichever is longer and that are pledged to one or more secured parties who have the right to buy, sell, or re-pledge the collateral.

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- Definition

Amounts due from parties associated with the reporting entity as evidenced by a written promise to pay, due after 1 year (or 1 business cycle).

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