Long-Term Debt (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended	9 Months Ended
Dec. 28, 2010 year	Sep. 27, 2011 segment officer statement rent month quarter	Dec. 28, 2011
Long-Term Debt
Line of credit facility term (in years)	5
Maximum commitments			$ 200
Maximum commitments, letter of credit subfacility			35
Additional available credit			50
Credit facility, floating interest rate basis		LIBOR
Credit facility, basis spread on variable rate, low end of range (as a percent)		1.75%
Credit facility, basis spread on variable rate, high end of range (as a percent)		2.25%
Multiplier of rent used to compute Adjusted Debt (in rents)		8
Trailing period for which EBITDAR is computed (in months)		12
Commitment fee, low end of range (as a percent)		0.30%
Commitment fee, high end of range (as a percent)		0.40%
Financial covenant, Adjusted Debt Ratio, maximum		4.0
Financial covenant, EBITDAR Ratio, minimum		1.9
Adjusted Debt Ratio		2.8
EBITDAR Ratio		2.8
Net availability for borrowings		182
Outstanding debt		0
Outstanding standby letters of credit		$ 18

Represents the ratio of adjusted debt to EBITDAR, as of the balance sheet date.

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- Definition

The high end of the range of percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ Details

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- Definition

The low end of the range of percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ Details

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- Definition

Represents the ratio of EBITDAR to interest and rental expense, as of the balance sheet date.

+ Details

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- Definition

Represents the maximum ratio of adjusted debt to trailing 12-month EBITDAR ("Adjusted Debt Ratio") under financial covenants which the entity is obligated to maintain.

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- Definition

Represents the minimum ratio of trailing 12-month EBITDAR to interest and rental expense ("EBITDAR Ratio") under financial covenants which the entity is obligated to maintain.

+ Details

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- Definition

Represents the number of times rent is added to debt to compute Adjusted Debt.

+ Details

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- Definition

Represents the trailing period in months for which earnings before interest, taxes, depreciation, amortization, rent and noncash stock option expense ("EBITDAR") is computed.

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- Definition

Represents the additional borrowing capacity available upon request of the entity and satisfaction of certain conditions.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the time period in years of revolving credit facility.

+ Details

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- Definition

The high end of the range of fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ Details

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- Definition

The low end of the range of fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ Details

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- Details

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- Definition

The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

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- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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Balance Type:	credit
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- Definition

The maximum amount of borrowing capacity under a line of credit that is available as of the balance sheet date for a specific purpose other than for financing goods acquired for inventory or imminent delivery to a customer.

+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 4

-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 SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

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

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-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 210.5-02.19(b),22(b))

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

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- Definition

The carrying value as of the balance sheet date of the noncurrent portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Line-of-Credit Arrangement

-URI http://asc.fasb.org/extlink&oid=6517033

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 10

-Section 45

-Paragraph 13

-URI http://asc.fasb.org/extlink&oid=6743817&loc=d3e1314-112600

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 470

-SubTopic 10

-Section 45

-Paragraph 14

-URI http://asc.fasb.org/extlink&oid=6743817&loc=d3e1336-112600

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 6

-Paragraph 9, 10, 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 6: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

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

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Balance Type:	credit
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