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|**CONSOLIDATED CONDENSED FINANCIAL STATEMENTS (Note)**                              | 9 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    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|**Organization, Consolidation and Presentation of Financial Statements [Abstract]** | Â                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|CONSOLIDATED CONDENSED FINANCIAL STATEMENTS                                         | CONSOLIDATED CONDENSED FINANCIAL STATEMENTSBasis of PresentationCLARCOR Inc. and its subsidiaries (collectively, the “Company” or “CLARCOR”) is a global provider of filtration products, filtration systems and services, and consumer and industrial packaging products.  As discussed further inNote 13, the Company hasthreereportable segments: Engine/Mobile Filtration, Industrial/Environmental Filtration and Packaging.  The Consolidated Condensed Financial Statements include all domestic and foreign subsidiaries that were more than 50% owned and controlled as of each respective reporting period presented.  All intercompany accounts and transactions have been eliminated.The Consolidated Condensed Statements of Earnings and the Consolidated Condensed Statements of Cash Flows for the periods endedAugust 27, 2011andAugust 28, 2010and the Consolidated Condensed Balance Sheet as ofAugust 27, 2011have been prepared by the Company without audit.  The Consolidated Condensed Financial Statements have been prepared on the same basis as those in the Company’s Annual Report on Form 10-K for the fiscal year endedNovember 27, 2010(“2010Form 10-K”).  TheNovember 27, 2010Consolidated Condensed Balance Sheet data was derived from the Company’s year-end audited Consolidated Financial Statements as presented in the2010Form 10-K but does not include all disclosures required by accounting principles generally accepted in the United States of America ("U.S. GAAP").  In the opinion of management, all adjustments (which include only normal recurring adjustments) necessary to present fairly the financial position, results of operations and cash flows have been made.  The results of operations for the period endedAugust 27, 2011, are not necessarily indicative of the operating results for the full year.  The information included in this Form 10-Q should be read in conjunction with the audited Consolidated Financial Statements and accompanying notes included in the2010Form 10-K.Cash and Cash Equivalents and Restricted CashHighly liquid investments with an original maturity of three months or less when purchased or that are readily saleable are considered to be cash and cash equivalents.  Restricted cash represents funds held in escrow and cash balances held by German banks as collateral for certain guarantees of overseas subsidiaries.  Restricted cash classified as current corresponds to guarantees that expire within one year.  The Company also has$2,278and$2,016of noncurrent restricted cash recorded in Other noncurrent assets as ofAugust 27, 2011andNovember 27, 2010, respectively, corresponding to guarantees and escrow agreements that expire longer than one year from the dates of the Consolidated Condensed Balance Sheets.InventoriesInventories are valued at the lower of cost or market primarily determined on the first-in, first-out (“FIFO”) method of inventory costing, which approximates current cost.  Inventories are summarized as follows:August 27, 2011November 27, 2010Raw materials$76,764$67,011Work in process33,22126,219Finished products99,71689,154Inventories$209,701$182,384New Accounting GuidanceIn October 2009, the Financial Accounting Standards Board (“FASB”) issued guidance on revenue arrangements with multiple deliverables effective for the Company’s 2011 fiscal year.  The guidance revises the criteria for separating, measuring, and allocating arrangement consideration to each deliverable in a multiple element arrangement.  The guidance requires companies to allocate revenue using the relative selling price of each deliverable, which must be estimated if the company does not have a history of selling the deliverable on a stand-alone basis or third-party evidence of selling price.  The impact of adopting this guidance on November 28, 2010 was not material to the Consolidated Condensed Financial Statements.In December 2010, the FASB issued guidance to modify the steps a company performs in preparing its goodwill impairment test.  The guidance deals specifically with reporting units having zero or negative carrying amounts.  For those reporting units, a company is required to perform the second step of the goodwill impairment test if it is more likely than not that a goodwill impairment exists.  In determining whether it is more likely than not that a goodwill impairment exists, a company should consider whether there are any adverse qualitative factors indicating that an impairment may exist.  The Company does not expect the adoption of this guidance on December 4, 2011 to have a material impact on the Consolidated Condensed Financial Statements.In December 2010, the FASB issued guidance which amends the pro forma disclosure requirements for business combinations and specifies that if a public company presents comparative financial statements, the company should disclose revenue and earnings of the combined entity as though business combinations occurring during the year had occurred as of the beginning of the comparable prior annual reporting period only.  The guidance also expands the pro forma disclosure requirements to include a description of the nature and amount of material, nonrecurring pro forma adjustments directly attributable to the business combination included in the reported pro forma revenue and earnings.  The Company does not expect the adoption of this guidance on December 4, 2011 to have a material impact on the Consolidated Condensed Financial Statements.In May 2011, the FASB issued guidance amending fair value measurement and disclosure requirements in order to align U.S. GAAP and International Financial Reporting Standards ("IFRS").  Consequently, the amendments change the wording used to describe many of the requirements in U.S. GAAP for measuring fair value and for disclosing information about fair value measurements.  Some of the amendments clarify the intent about the application of existing fair value measurement requirements, while other amendments change a particular principle or requirement for measuring fair value or for disclosing information about fair value measurements.  The Company does not expect the adoption of this guidance on February 27, 2012 to have a material impact on the Consolidated Condensed Financial Statements.In June 2011, the FASB issued amendments to its comprehensive income guidance to (a) improve the comparability, consistency and transparency of financial reporting, (b) increase the prominence of items reported in other comprehensive income and (c) facilitate the convergence of U.S. GAAP with IFRS.  The amendments require all non-owner changes in shareholders' equity be presented either in a single continuous statement of comprehensive income or in two separate but consecutive statements.  The required amendments pursuant to the guidance must be applied retrospectively.  The guidance is effective for fiscal years and interim periods within those years, beginning after December 15, 2011, although early adoption is permitted.  The Company currently anticipates adopting this guidance in connection with the preparation of its 2011 year end Consolidated Financial Statements.  The adoption of this guidance will affect the presentation of the Consolidated Statements of Earnings and the Consolidated Statements of Shareholders' Equity but will not have a material effect on the Company’s financial position or results of operations.
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|                                                                                    | August 27, 2011                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
|Raw materials                                                                       | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               
|Work in process                                                                     | 33,221                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|Finished products                                                                   | 99,716                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
|Inventories                                                                         | $                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 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