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Summary of Significant Accounting Policies - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 25, 2011	Mar. 27, 2011	Dec. 26, 2010
Significant Accounting Policies [Line Items]
Percentage of ownership interests on subsidiary		52.90%	50.80%
Restricted stock and restricted stock units, requisite service period	4 years
Other Businesses
Significant Accounting Policies [Line Items]
Investments in non-public businesses, non-operating expense	2		16
Building and Building Improvements
Significant Accounting Policies [Line Items]
Property, plant and equipment, minimum useful life (in years)	10
Property, plant and equipment, maximum useful life (in years)	40
Machinery and Equipment
Significant Accounting Policies [Line Items]
Property, plant and equipment, minimum useful life (in years)	3
Property, plant and equipment, maximum useful life (in years)	30
Tucson Newspaper Partnership
Significant Accounting Policies [Line Items]
Equity method investment ownership percentage	50.00%

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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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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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The maximum useful life of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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Description of the estimated period of time over which an employee is required to provide service in exchange for the equity-based payment award, which often is the vesting period. This period may be explicit or implicit based on the terms of the award, and may be presented in a variety of ways (for example, year, month and year, day, month and year, quarter of a year).

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