Acquistions and Divestitures (Details) (USD $)	9 Months Ended
	Aug. 30, 2014	Aug. 31, 2013	Nov. 30, 2013
Business Acquisition [Line Items]
Total acquisition cost	$ 26,000
Total purchase price net of cash acquired	151	8,614
Purchase price allocation [Abstract]
Goodwill	258,709		263,103
Total purchase price	26,000
Discontinued operations balance sheet items
Other current assets	1,865		1,865
Current assets of discontinued operations	1,865		1,865
Other accrued expenses	5,000		5,000
Current liabilities of discontinued operations	5,000		5,000
Plexbond [Member]
Business Acquisition [Line Items]
Total acquisition cost	10,390		10,239
Purchase price allocation [Abstract]
Current assets	5,179		5,179
Property, plant and equipment	2,275		2,275
Goodwill	3,777		3,626
Other intangibles, net	4,094		4,094
Other assets acquired	608		608
Current liabilities	(3,684)		(3,684)
Other liabilities	(1,859)		(1,859)
Total purchase price	10,390		10,239
Goodwill purchase price adjustment	151
Total purchase price adjustment	151
Plexbond [Member] | Customer relationships [Member]
Purchase price allocation [Abstract]
Other intangibles, net	3,529		3,529
Plexbond [Member] | Non-competition agreements [Member]
Purchase price allocation [Abstract]
Other intangibles, net	$ 565		$ 565