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Derivatives (Tables) | 9 Months Ended
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Sep. 27, 2013
Effect of Derivative Instruments on Consolidated Statements of Operations | The effect of our derivative instruments on our condensed consolidated statements of operations for the 13 weeks and 39 weeks ended September 27, 2013 and September 28, 2012 was as follows:
|  | Location of (expense) |  |  | 13 Weeks Ended |  |  | 39 Weeks Ended |
|  | recognized on derivative |  |  | September 27, 2013 |  |  | September 28, 2012 |  |  | September 27, 2013 |  |  | September 28, 2012 |
Derivatives not designated as hedging instruments: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Brent crude oil option |  |  | Operating expenses |  |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (17 | )

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- Definition Tabular disclosure for other derivative instruments not designated as hedging instruments of (a) the location and amount of gains and losses reported in the statement of financial performance and (b) the location and fair value amounts of the instruments reported in the statement of financial position. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 4C -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=7476318&loc=SL5624171-113959 + Details
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Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration