| **Contingencies (Note)**                                | 3 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               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| **Commitments and Contingencies Disclosure [Abstract]** |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              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| Contingencies                                           | CONTINGENCIESLegal ContingenciesFrom time to time, the Company is subject to lawsuits, investigations and disputes (some of which involve substantial claimed amounts) arising out of the conduct of its business, including matters relating to commercial transactions, product liability, intellectual property and other matters.  Items included in these other matters are discussed below.  The Company believes recorded reserves in its Consolidated Condensed Financial Statements are adequate in light of the probable and estimable outcomes of the items discussed below and other matters.  Any recorded liabilities were not material to the Company’s financial position, results of operation or liquidity and the Company does not currently believe that any pending claims or litigation, including those identified below, will materially affect its financial position, results of operations or liquidity.TransWeb/3MOn May 21, 2010, 3M Company and 3M Innovative Properties (“3M”) brought a lawsuit against TransWeb, LLC ("TransWeb") in the United States District Court for the District of Minnesota, alleging that certain TransWeb products infringe multiple claims of certain 3M patents.  Shortly after receiving service of process in this litigation, TransWeb filed its own complaint against 3M in the United States District Court for the District of New Jersey, seeking a declaratory judgment that the asserted patents are invalid and that the products in question do not infringe.  3M withdrew its Minnesota action, and the parties are currently litigating the matter in New Jersey. The litigation in question was filed and underway before the Company acquired TransWeb in December 2010, but the Company assumed the risk of this litigation as a result of the acquisition.  On June 3, 2011, TransWeb filed a Second Amended Complaint against 3M, (i) seeking declaratory judgment that the asserted 3M patents are invalid, the TransWeb products in question do not infringe, and the 3M patents are unenforceable due to inequitable conduct by 3M in obtaining the patents, (ii) alleging patent infringement by 3M of a patent held by TransWeb, and (iii) alleging antitrust violations by 3M in connection with certain upstream and downstream markets for fluorinated polymeric filtration media under theories of Walker Process fraud and sham litigation.  TransWeb later dropped its patent infringement allegations against 3M, but continued to allege and pursue its inequitable conduct and antitrust claims.  Prior to trial, 3M voluntarily dismissed with prejudice the majority of the patent claims 3M had originally brought against TransWeb, but continued to allege infringement by TransWeb of two claims of one of the patents in suit.A jury trial commenced on November 13, 2012.  After 10 days of testimony and deliberation, on November 30, 2012, a six-member jury unanimously found that (i) TransWeb does not  infringe the asserted claims of the 3M patent in suit, (ii) the asserted claims of the patent in suit are invalid as being obvious, (iii) 3M  violated the antitrust laws in trying to enforce patents obtained through fraud on the United States Patent Office (i.e., Walker Process fraud), (iv) TransWeb is entitled to recoup lost profits of approximately $34 plus its attorneys' fees as damages, and (v)  3M did not engage in "sham" litigation.  The jury also rendered a unanimous advisory verdict, which is not binding on the court, that 3M's asserted patents were obtained through inequitable conduct, and thus unenforceable.The court has not yet decided whether to accept the jury's verdict on inequitable conduct and has not yet issued a final judgment in the case, pending (i) resolution of various post-trial motions made by 3M to set aside the jury verdicts adverse to 3M, and (ii) a separate procedure before a third party Special Master to quantify and qualify TransWeb's attorneys' fees that may be awarded as damages, including those subject to potential trebling under the antitrust laws.  Such procedure is anticipated to take until at least April 2013 to resolve.The Company acquired TransWeb on December 29, 2010.  Of the base purchase price, the Company withheld payment of $17,000 pending resolution of the 3M litigation, which funds may be used by the Company in connection with the same.  Any litigation related amounts incurred in excess of the amount withheld will be expensed and paid by the Company.  During the three months endedMarch 2, 2013, the Company applied legal charges of $531 against the withheld payment.  Since the acquisition, the Company has incurred legal charges of $17,456 related to the 3M litigation, of which $17,000 has been applied against the withheld portion of the TransWeb purchase price as noted above.  During the three months ended March 2, 2013, the Company expensed $456 related to the 3M litigation, which is included in Selling and administrative expenses in the Consolidated Condensed Statements of Earnings.   OtherAdditionally, the Company is party to various proceedings relating to environmental issues.  The U.S. Environmental Protection Agency and/or other responsible state agencies have designated the Company as a potentially responsible party, along with other companies, in remedial activities for the cleanup of waste sites under the Comprehensive Environmental Response, Compensation, and Liability Act (“the federal Superfund statute”).  Although it is not certain what future environmental claims, if any, may be asserted, the Company currently believes that its potential liability for known environmental matters is not material.  However, environmental and related remediation costs are difficult to quantify for a number of reasons, including the number of parties involved, the difficulty in determining the nature and extent of the contamination at issue, the length of time remediation may require, the complexity of the environmental regulation and the continuing advancement of remediation technology.  Applicable federal law may impose joint and several liability on each potentially responsible party for the cleanup.In addition to the matters cited above, the Company is involved in legal actions arising in the normal course of business.  The Company records provisions with respect to identified claims or lawsuits when it is probable that a liability has been incurred and the amount of the loss can be reasonably estimated. Claims and lawsuits are reviewed quarterly and provisions are taken or adjusted to reflect the status of a particular matter.Other ContingenciesIn the event of a change in control of the Company, termination benefits are likely to be required for certain executive officers and other employees. |

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The entire disclosure for commitments and contingencies.
+ References
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