Business Acquisitions, Investments and Redeemable Noncontrolling Interests (Details 4) (USD $) In Thousands, unless otherwise specified	0 Months Ended	12 Months Ended
May 01, 2008	Dec. 01, 2012	Dec. 03, 2011	Nov. 27, 2010
Schedule of Equity Method Investments [Line Items]
Payments to Acquire Interest in Subsidiaries and Affiliates		$ 1,023	$ 596	$ 199
BioProcessH2O [Member]
Schedule of Equity Method Investments [Line Items]
Name of Investment	BioProcessH2O LLC
Significant Acquisitions and Disposals, Date of Transaction for Acquisition or Disposal	May 01, 2008
Equity Method Investment, Ownership Percentage	30.00%
Equity Method Investment, Aggregate Cost	4,000
Payments to Acquire Interest in Subsidiaries and Affiliates		0	150	0
Investment-related Liabilities		21
Equity Method Investments, Carrying Amount		3,137	3,229
Equity Method Investment, Dividends or Distributions		$ 0	$ 0	$ 382

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No definition available.

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- Definition

This element represents the aggregate cost of investments accounted for under the equity method of accounting.

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This item represents disclosure of the amount of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporation; these investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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The aggregate amount of liabilities as of the balance sheet date for obligations incurred in connection with the entity's investments.

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The cash outflow associated with the acquisition of or advances to an entity that is related to it but not strictly controlled (for example, an unconsolidated subsidiary, affiliate, and joint venture or equity method investment) or the acquisition of an additional interest in a subsidiary (controlled entity).

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Date of acquisition or disposal, in CCYY-MM-DD format.

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No definition available.

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