EMPLOYEE RETIREMENT SAVINGS PLAN (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Dec. 31, 2011	Dec. 25, 2010	Dec. 26, 2009
EMPLOYEE RETIREMENT SAVINGS PLAN
Employee contribution limit per calendar year to 401 (k) plan	50.00%
Company contributions	$ 8,700	$ 8,300	$ 8,700
Assets related to non-qualified deferred compensation plan included in other assets	19,100	18,400
Liabilities related to non-qualified deferred compensation plan included in other noncurrent liabilities	19,100	18,400
Total amount distributed from non-qualified deferred compensation plan	$ 322

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The amount of distributions made to the individual during the period.

+ References

No definition available.

+ Details

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- Definition

Carrying amount as of the balance sheet date of assets held under deferred compensation agreements.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 17

-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.17)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

The amount of the cost recognized during the period for defined contribution plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 132R

-Paragraph 11

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 70

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6414718&loc=d3e28014-114942

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- Definition

Carrying value as of the balance sheet date of liabilities for fully funded, non-qualified deferred compensation plan payable beyond one year (or the operating cycle, if longer).

+ References

No definition available.

+ Details

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- Definition

The limit of annual employee contributions to the plan per calendar year as a percentage of compensation.

+ References

No definition available.

+ Details

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