Note 7 - Notes Payable, Long-Term Debt and Lines of Credit - Long-Term Debt (Details) - USD ($) $ in Thousands	12 Months Ended
Nov. 28, 2015	Nov. 29, 2014
Revolving Credit Facility [Member]
Long term weighted-average interest rate	1.33%
Loan maturity date	2019
Long-term debt		$ 143,000
Term Loan [Member]
Long term weighted-average interest rate	1.44%
Loan maturity date	2019
Long-term debt	$ 288,750
Senior Notes Series A [Member]
Long term weighted-average interest rate	2.24%
Loan maturity date	2017
Long-term debt	$ 17,419	$ 17,805
Senior Notes Series B [Member]
Long term weighted-average interest rate	2.12%
Loan maturity date	2017
Long-term debt	$ 33,982	34,738
Senior Notes Series C [Member]
Long term weighted-average interest rate	3.34%
Loan maturity date	2020
Long-term debt	$ 36,955	37,192
Senior Notes Series D [Member]
Long term weighted-average interest rate	5.61%
Loan maturity date	2020
Long-term debt	$ 65,000	65,000
Senior Notes Series E [Member]
Long term weighted-average interest rate	4.12%
Loan maturity date	2022
Long-term debt	$ 250,000	250,000
Long-term debt	692,106	$ 547,735
Less: current maturities	(22,500)
Long-term debt	$ 669,606	$ 547,735

Year when the debt instrument is scheduled to be fully repaid.

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- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.16)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.16)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 20, 22
-Article 5

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- Definition

Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19,20)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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