Segment Information (Details 1) (USD $) In Thousands, unless otherwise specified	3 Months Ended	6 Months Ended
Jun. 01, 2013	Jun. 02, 2012	Jun. 01, 2013 segments	Jun. 02, 2012	Dec. 01, 2012
Segment Reporting Information [Line Items]
Number of segments			3
Net sales	$ 287,583	$ 284,855	$ 543,854	$ 542,119
Operating profit	49,401	49,111	83,216	83,423
Other income (expense), net	(217)	(36)	(228)	610
Earnings before income taxes	49,184	49,075	82,988	84,033
Identifiable assets	1,204,436		1,204,436		1,205,502
Engine Mobile Filtration [Member]
Segment Reporting Information [Line Items]
Net sales	132,372	130,677	250,047	250,960
Operating profit	29,096	29,628	52,545	52,925
Identifiable assets	377,557		377,557		372,011
Industrial Environmental Filtration [Member]
Segment Reporting Information [Line Items]
Net sales	136,660	134,629	259,286	255,743
Operating profit	18,411	17,747	28,089	28,452
Identifiable assets	706,979		706,979		706,610
Packaging [Member]
Segment Reporting Information [Line Items]
Net sales	18,551	19,549	34,521	35,416
Operating profit	1,894	1,736	2,582	2,046
Identifiable assets	48,541		48,541		36,350
Corporate [Member]
Segment Reporting Information [Line Items]
Identifiable assets	$ 71,359		$ 71,359		$ 90,531

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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This element represents the income or loss from continuing operations attributable to the economic entity which may also be defined as revenue less expenses from ongoing operations, after income or loss from equity method investments, but before income taxes, extraordinary items, and noncontrolling interest.

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The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business).

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Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts.

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