Financial Statement Revision And Summary Of Significant Accounting Policies (Effects Of Adjustment On Earnings Per Share) (Details) (USD $)	3 Months Ended	12 Months Ended
Dec. 25, 2011	Sep. 25, 2011	Jun. 26, 2011	Mar. 27, 2011	Dec. 26, 2010	Sep. 26, 2010	Jun. 27, 2010	Mar. 28, 2010	Dec. 25, 2011	Dec. 26, 2010	Dec. 27, 2009
Basic EPS	$ (0.47)	$ (1.20)	$ 0.24	$ (0.22)	$ 0.19	$ 0.21	$ 0.22	$ 0.08	$ (1.64)	$ 0.69	$ 0.61
Diluted EPS	$ (0.47)	$ (1.20)	$ 0.24	$ (0.22)	$ 0.19	$ 0.21	$ 0.22	$ 0.08	$ (1.64)	$ 0.69	$ 0.61
As Previously Reported [Member]
Basic EPS		$ (1.21)	$ 0.23	$ (0.23)	$ 0.19	$ 0.18	$ 0.23	$ 0.09		$ 0.69	$ 0.67
Diluted EPS		$ (1.21)	$ 0.23	$ (0.23)	$ 0.19	$ 0.17	$ 0.22	$ 0.09		$ 0.68	$ 0.66
Canada Adjustments [Member]
Basic EPS										$ (0.02)	$ (0.04)
Diluted EPS										$ (0.01)	$ (0.03)
Income Tax Adjustments [Member]
Basic EPS										$ 0.02	$ (0.02)
Diluted EPS										$ 0.02	$ (0.02)
As Revised For Revision Adjustments [Member]
Basic EPS		$ (1.20)	$ 0.24	$ (0.22)	$ 0.19	$ 0.21	$ 0.22	$ 0.08		$ 0.69	$ 0.61
Diluted EPS		$ (1.20)	$ 0.24	$ (0.22)	$ 0.19	$ 0.21	$ 0.22	$ 0.08		$ 0.69	$ 0.61

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 55

-Paragraph 52

-URI http://asc.fasb.org/extlink&oid=6945512&loc=d3e4984-109258

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

-Publisher FASB

-Name Emerging Issues Task Force (EITF)

-Number 07-4

-Paragraph 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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 5

-Section 03

-Paragraph 20

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

-Publisher FASB

-Name Accounting Standards Codification

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-Section S99

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-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

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

-Publisher SEC

-Name Regulation S-X (SX)

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Reference 6: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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-URI http://asc.fasb.org/extlink&oid=6879574&loc=d3e536633-122882

Reference 7: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 128

-Paragraph 36, 37, 38

-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 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 50

-Paragraph 1

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Reference 9: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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Reference 10: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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Reference 11: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

-SubTopic 10

-Section 45

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6920599&loc=d3e1252-109256

+ Details

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References+ Details