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Goodwill and Indefinite-Lived Intangibles - Carrying Amount of Goodwill and Indefinite-Lived Intangibles (Detail) (USD $) In Millions, unless otherwise specified | 6 Months Ended
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Jun. 15, 2013 | Dec. 29, 2012
Goodwill And Intangible Assets [Line Items] |  |
Goodwill, Beginning balance | $ 459.9 | $ 39.1
Goodwill, Acquisition adjustments | (0.7) |
Indefinite-Lived Intangibles, Acquisition adjustments |  |
Goodwill and other intangibles, Acquisition adjustments | (0.7) |
Goodwill, Foreign currency translation effects | (1.4) | 1.2
Goodwill, Ending balance | 457.8 | 459.9
Indefinite-Lived Intangibles, Beginning balance | 679.8 | 17.5
Indefinite-Lived Intangibles, Foreign currency translation effects |  | 0.5
Indefinite-Lived Intangibles, Ending balance | 679.8 | 679.8
Goodwill and other intangibles, Beginning balance | 1,139.7 | 56.6
Goodwill and other intangibles, Foreign currency translation effects | (1.4) | 1.7
Goodwill and other intangibles, Ending balance | 1,137.6 | 1,139.7
PLG [Member] |  |
Goodwill And Intangible Assets [Line Items] |  |
Goodwill, Intangibles purchased |  | 419.6
Indefinite-Lived Intangibles, Intangibles purchased |  | 661.8
Goodwill and other intangibles, Intangibles purchased |  | $ 1,081.4

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 + Details
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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 + Details
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- Definition Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=14024403&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=21917927&loc=d3e961-128460 + Details
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