Goodwill and Acquired Intangible Assets (Tables)

12 Months Ended

Dec. 03, 2011

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill [Table Text Block]

The following table reconciles the activity for goodwill by segment for fiscal years 2011 and 2010.  All goodwill is stated on a gross basis, as the Company has not recorded any impairment charges against goodwill.

	Engine/Mobile Filtration			Industrial/ Environmental Filtration			Packaging		Total
November 30, 2009	$	22,551		$	205,631		$	—	$	228,182
Acquisitions	—			666			—		666
Currency translation adjustments	(917		)	174			—		(743		)
November 30, 2010	$	21,634		$	206,471		$	—	$	228,105
Acquisitions	—			7,976			—		7,976
Currency translation adjustments	(547		)	(4		)	—		(551		)
November 30, 2011	$	21,087		$	214,443		$	—	$	235,530

Schedule of Intangible Assets by Segment [Table Text Block]

The following table summarizes acquired intangible assets by segment.  Other acquired intangible assets include parts manufacturer regulatory approvals, proprietary technology, patents and noncompete agreements.

	Engine/Mobile Filtration			Industrial/ Environmental Filtration			Packaging		Total
November 30, 2011
Indefinite Lived Intangibles:
Trademarks - indefinite lived	$	603		$	41,922		$	—	$	42,525
Finite Lived Intangibles:
Trademarks, gross - finite lived	$	306		$	488		$	—	$	794
Accumulated amortization	(74		)	(302		)	—		(376		)
Trademarks, net - finite lived	$	232		$	186		$	—	$	418
Customer relationships, gross	$	4,256		$	42,694		$	—	$	46,950
Accumulated amortization	(1,535		)	(13,559		)	—		(15,094		)
Customer relationships, net	$	2,721		$	29,135		$	—	$	31,856
Other acquired intangibles, gross	$	243		$	39,632		$	—	$	39,875
Accumulated amortization	(243		)	(15,757		)	—		(16,000		)
Other acquired intangibles, net	$	—		$	23,875		$	—	$	23,875
Total finite lived intangible assets, net	$	2,953		$	53,196		$	—	$	56,149
Acquired intangible assets, less accumulated amortization	$	3,556		$	95,118		$	—	$	98,674

	Engine/Mobile Filtration			Industrial/ Environmental Filtration			Packaging		Total
November 30, 2010
Indefinite Lived Intangibles:
Trademarks - indefinite lived	$	603		$	41,022		$	—	$	41,625
Finite Lived Intangibles:
Trademarks, gross - finite lived	$	302		$	486		$	—	$	788
Accumulated amortization	(58		)	(287		)	—		(345		)
Trademarks, net	$	244		$	199		$	—	$	443
Customer relationships, gross	$	4,161		$	34,188		$	—	$	38,349
Accumulated amortization	(1,371		)	(10,562		)	—		(11,933		)
Customer relationships, net	$	2,790		$	23,626		$	—	$	26,416
Other acquired intangibles, gross	$	243		$	35,928		$	—	$	36,171
Accumulated amortization	(243		)	(13,238		)	—		(13,481		)
Other acquired intangibles, net	$	—		$	22,690		$	—	$	22,690
Total finite lived intangible assets, net	$	3,034		$	46,515		$	—	$	49,549
Acquired intangible assets, less accumulated amortization	$	3,637		$	87,537		$	—	$	91,174

Schedule of Expected Amortization Expense [Table Text Block]

The following tables summarize actual amortization expense for the past three fiscal years and estimated amortization expense for the next five fiscal years.

Amortization expense for the years ended:
2011	$	5,609
2010	4,802
2009	4,957

Estimated amortization expense for the next five years:
2012	$	5,610
2013	5,462
2014	5,274
2015	5,261
2016	5,129