Consolidated Balance Sheets (Parentheticals) (USD $) In Thousands, except Share data, unless otherwise specified	Nov. 29, 2014	Nov. 30, 2013
Statement of Financial Position [Abstract]
Allowance for Doubtful Accounts Receivable, Current	$ 10,811	$ 9,183
Preferred Stock, Par or Stated Value Per Share (in dollars per share)	$ 1	$ 1
Preferred Stock, Shares Authorized	5,000,000us-gaap_PreferredStockSharesAuthorized	5,000,000us-gaap_PreferredStockSharesAuthorized
Preferred Stock, Shares Issued	0us-gaap_PreferredStockSharesIssued	0us-gaap_PreferredStockSharesIssued
Common Stock, Par or Stated Value Per Share (in dollars per share)	$ 1	$ 1
Common Stock, Shares Authorized	120,000,000us-gaap_CommonStockSharesAuthorized	120,000,000us-gaap_CommonStockSharesAuthorized
Common Stock, Shares, Issued	50,204,497us-gaap_CommonStockSharesIssued	50,370,541us-gaap_CommonStockSharesIssued

A valuation allowance for trade and other receivables due to an Entity within one year (or the normal operating cycle, whichever is longer) that are expected to be uncollectible.

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