Significant Accounting Policies	6 Months Ended
Jun. 24, 2012
Accounting Policies [Abstract]
BasisOfPresentationSignificantAccountingPoliciesAndPriorPeriodAdjustments [Text Block]	Presentation of Condensed Consolidated Financial Statements During interim periods, we follow the accounting policies set forth in our Annual Report on Form 10-K for the fiscal year ended December 25, 2011 and apply appropriate interim financial reporting standards for a fair statement of our operating results and financial position in conformity with accounting principles generally accepted in the United States of America, as codified by the Financial Accounting Standards Board (FASB) in the Accounting Standards Codification (ASC) (referred to herein as U.S. GAAP), as indicated below. Users of financial information produced for interim periods in 2012 are encouraged to read this Quarterly Report on Form 10-Q in conjunction with our consolidated financial statements and notes thereto filed with the Securities and Exchange Commission (SEC) in our 2011 Annual Report on Form 10-K. Interim financial reporting standards require us to make estimates that are based on assumptions regarding the outcome of future events and circumstances not known at that time, including the use of estimated effective tax rates. Inevitably, some assumptions will not materialize, unanticipated events or circumstances may occur which vary from those estimates and such variations may significantly affect our future results. Additionally, interim results may not be indicative of our results for future interim periods or our annual results. We use a 4-4-5 convention for our fiscal quarters, which are thirteen week periods generally ending on the last Sunday of each calendar quarter. We refer to these thirteen week fiscal periods as “quarters” throughout this report. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with the SEC’s requirements for Form 10-Q and contain all adjustments, of a normal and recurring nature, which are necessary for a fair statement of (i) the condensed consolidated income statements for the thirteen and twenty-six week periods ended June 24, 2012 and June 26, 2011, (ii) the condensed consolidated statements of comprehensive income for the thirteen and twenty-six week periods ended June 24, 2012 and June 26, 2011, (iii) the condensed consolidated balance sheets at June 24, 2012 and December 25, 2011, (iv) the condensed consolidated statements of cash flows for the twenty-six week periods ended June 24, 2012 and June 26, 2011, and (v) the condensed consolidated statement of shareholders’ equity for the twenty-six week period ended June 24, 2012. However, the accompanying unaudited condensed consolidated financial statements do not include all information and notes required by U.S. GAAP. The condensed consolidated balance sheet, included in this report, as of December 25, 2011 was derived from our 2011 audited financial statements, but does not include all disclosures required by U.S. GAAP. New Accounting Pronouncement In June 2011, the FASB modified the presentation of comprehensive income in the financial statements. The revised standard requires an entity to present the total of comprehensive income, the components of net income, and the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements and must be applied retrospectively. This standard eliminates the current option to report other comprehensive income and its components in the statement of changes in equity. The revised standard does not change the items that must be reported in other comprehensive income or when an item of other comprehensive income must be reclassified to net income. The modification of the standard did not have an effect on our consolidated results of operations and financial position, when adopted, on December 26, 2011.

Presentation of Condensed Consolidated Financial Statements

During interim periods, we follow the accounting policies set forth in our Annual Report on Form 10-K for the fiscal year ended December 25, 2011 and apply appropriate interim financial reporting standards for a fair statement of our operating results and financial position in conformity with accounting principles generally accepted in the United States of America, as codified by the Financial Accounting Standards Board (FASB) in the Accounting Standards Codification (ASC) (referred to herein as U.S. GAAP), as indicated below. Users of financial information produced for interim periods in 2012 are encouraged to read this Quarterly Report on Form 10-Q in conjunction with our consolidated financial statements and notes thereto filed with the Securities and Exchange Commission (SEC) in our 2011 Annual Report on Form 10-K.

Interim financial reporting standards require us to make estimates that are based on assumptions regarding the outcome of future events and circumstances not known at that time, including the use of estimated effective tax rates. Inevitably, some assumptions will not materialize, unanticipated events or circumstances may occur which vary from those estimates and such variations may significantly affect our future results. Additionally, interim results may not be indicative of our results for future interim periods or our annual results.

We use a 4-4-5 convention for our fiscal quarters, which are thirteen week periods generally ending on the last Sunday of each calendar quarter. We refer to these thirteen week fiscal periods as “quarters” throughout this report. The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with the SEC’s requirements for Form 10-Q and contain all adjustments, of a normal and recurring nature, which are necessary for a fair statement of (i) the condensed consolidated income statements for the thirteen and twenty-six week periods ended June 24, 2012 and June 26, 2011, (ii) the condensed consolidated statements of comprehensive income for the thirteen and twenty-six week periods ended June 24, 2012 and June 26, 2011, (iii) the condensed consolidated balance sheets at June 24, 2012 and December 25, 2011, (iv) the condensed consolidated statements of cash flows for the twenty-six week periods ended June 24, 2012 and June 26, 2011, and (v) the condensed consolidated statement of shareholders’ equity for the twenty-six week period ended June 24, 2012. However, the accompanying unaudited condensed consolidated financial statements do not include all information and notes required by U.S. GAAP. The condensed consolidated balance sheet, included in this report, as of December 25, 2011 was derived from our 2011 audited financial statements, but does not include all disclosures required by U.S. GAAP.

New Accounting Pronouncement

In June 2011, the FASB modified the presentation of comprehensive income in the financial statements. The revised standard requires an entity to present the total of comprehensive income, the components of net income, and the components of other comprehensive income either in a single continuous statement of comprehensive income or in two separate but consecutive statements and must be applied retrospectively. This standard eliminates the current option to report other comprehensive income and its components in the statement of changes in equity. The revised standard does not change the items that must be reported in other comprehensive income or when an item of other comprehensive income must be reclassified to net income. The modification of the standard did not have an effect on our consolidated results of operations and financial position, when adopted, on December 26, 2011.