Goodwill and Acquired Intangible Assets (Schedule of Goodwill) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
Nov. 29, 2014	Nov. 30, 2013
Goodwill [Roll Forward]
Goodwill, beginning of period	$ 241,299us-gaap_Goodwill	$ 241,924us-gaap_Goodwill
Acquisitions	269,313us-gaap_GoodwillAcquiredDuringPeriod	0us-gaap_GoodwillAcquiredDuringPeriod
Currency translation adjustments	(3,440)	(625)
Goodwill, end of period	507,172us-gaap_Goodwill	241,299us-gaap_Goodwill
Engine Mobile Filtration [Member]
Goodwill [Roll Forward]
Goodwill, beginning of period	21,868	21,593
Acquisitions	194,989	0
Currency translation adjustments	(743)	275
Goodwill, end of period	216,114	21,868
Industrial Environmental Filtration [Member]
Goodwill [Roll Forward]
Goodwill, beginning of period	219,431	220,331
Acquisitions	74,324	0
Currency translation adjustments	(2,697)	(900)
Goodwill, end of period	291,058	219,431
Packaging [Member]
Goodwill [Roll Forward]
Goodwill, beginning of period	0	0
Acquisitions	0	0
Currency translation adjustments	0	0
Goodwill, end of period	$ 0	$ 0

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

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-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

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Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

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

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Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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