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Basis of Presentation and Significant Accounting Policies (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 01, 2017 | Dec. 02, 2016 | Nov. 27, 2015
Other Details [Abstract] |  |  |  |
Aggregate fair value of derivative instruments, Liabilities |  | $ 2,656 | $ 5,246 |
Aggregate fair value of derivative instruments, Assets |  | 14,198 | 51,229 |
Advertising expenses |  | $ 141,700 | $ 135,800 | $ 113,600
Number of weeks in current fiscal year |  | P52W | P53W | P52W
Foreign Exchange [Member] |  |  |  |
Other Details [Abstract] |  |  |  |
Aggregate fair value of derivative instruments, Assets | [1] | $ 14,200 | $ 38,100 |
Revenue Reserve [Member] |  |  |  |
Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |  |
Beginning balance |  | 23,096 | 19,446 | $ 17,402
Amount charged to revenue |  | 61,031 | 55,739 | 45,676
Actual returns |  | (62,121) | (52,089) | (43,632)
Ending balance |  | 22,006 | 23,096 | 19,446
Allowance for Doubtful Accounts [Member] |  |  |  |
Movement in Valuation Allowances and Reserves [Roll Forward] |  |  |  |
Beginning balance |  | 6,214 | 7,293 | 7,867
Increase due to acquisition |  | 2,391 | 77 | 326
Charged to operating expenses |  | 4,411 | 1,337 | 1,472
Actual returns | [2] | (3,865) | (2,493) | (2,372)
Ending balance |  | $ 9,151 | $ 6,214 | $ 7,293
[1] | Included in prepaid expenses and other current assets and accrued expenses for asset derivatives and liability derivatives, respectively, on our Consolidated Balance Sheets.
[2] | Deductions related to the allowance for doubtful accounts represent amounts written off against the allowance, less recoveries.

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- Definition Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 720 -SubTopic 35 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848 + Details
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