Note 5. Related Party (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 23, 2012	Sep. 30, 2013	Sep. 23, 2012
Note 5. Related Party (Details) [Line Items]
Interest Paid			$ 60,586	$ 52,599
Payments Received From World Media For Transition Services [Member]
Note 5. Related Party (Details) [Line Items]
Related Party Transaction, Amounts of Transaction	350		1,600
Reimbursement of Medical Claims Paid on Behalf of World Media [Member]
Note 5. Related Party (Details) [Line Items]
Related Party Transaction, Amounts of Transaction	30	1,600	1,300	1,600
Services and Support Provided By World Media [Member]
Note 5. Related Party (Details) [Line Items]
Costs and Expenses, Related Party	10	230	150	230
Other Collections Passed Along to World Media [Member]
Note 5. Related Party (Details) [Line Items]
Related Party Transaction, Amounts of Transaction	100	70	600	70
Transition Services Provided To World Media [Member] | Other Current Assets [Member]
Note 5. Related Party (Details) [Line Items]
Due from Related Parties	200		200
Common Class A [Member] | Berkshire Hathaway [Member]
Note 5. Related Party (Details) [Line Items]
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners	17.00%		17.00%
Berkshire Hathaway [Member] | Accrued Expenses and Other Liabilities [Member]
Note 5. Related Party (Details) [Line Items]
Due to Related Parties	100		100
Berkshire Hathaway [Member]
Note 5. Related Party (Details) [Line Items]
Interest Paid	$ 8,800	$ 5,100	$ 25,000	$ 5,100