Note 11 - Reconciliation of Segment Operating Income to Income from Continuing Operations Before Income Taxes and Income from Equity Method Investments (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Aug. 27, 2016	Aug. 29, 2015	Aug. 27, 2016	Aug. 29, 2015
Segment operating income	$ 48,429	$ 48,543	$ 140,839	$ 118,271
Special charges, net	2,807	(1,297)	2,024	(4,592)
Other income (expense), net	(956)	(1,040)	(7,603)	(1,246)
Interest expense	(6,809)	(6,448)	(19,714)	(18,765)
Income before income taxes and income from equity method investments	$ 43,471	$ 39,758	$ 115,546	$ 93,668

Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h)(1)(i))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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Amount of the cost of borrowed funds accounted for as interest expense for debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.8)
-URI http://asc.fasb.org/extlink&oid=63488584&loc=d3e20235-122688

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The net result for the period of deducting operating expenses from operating revenues.

+ References

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Amount of other expense (income) that is infrequent in occurrence or unusual in nature.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 20
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64828382&loc=d3e15138-107781

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The net amount of other operating income and expenses, the components of which are not separately disclosed on the income statement, from items that are associated with the entity's normal revenue producing operations.

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