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Intangible Assets (Details) (USD $) In Millions, unless otherwise specified | 12 Months Ended |
--- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2011
Intangible Assets |  |  |
Goodwill, Accumulated impairment loss |  |  | $ 606.3 us-gaap_GoodwillImpairedAccumulatedImpairmentLoss
Other indefinite-lived intangible assets, Accumulated impairment loss |  |  | 37.1 pag_IntangibleAssetsIndefiniteLivedExcludingGoodwillAccumulatedImpairmentLoss
Other Indefinite-lived Intangible Assets | 386.2 us-gaap_OtherIndefiniteLivedIntangibleAssets | 295.2 us-gaap_OtherIndefiniteLivedIntangibleAssets |
Summary of the changes in the carrying amount of goodwill and other indefinite-lived intangible assets |  |  |
Goodwill, Beginning Balance | 1,134.9 us-gaap_Goodwill | 961.5 us-gaap_Goodwill |
Goodwill, Additions | 165.4 us-gaap_GoodwillAcquiredDuringPeriod | 165.5 us-gaap_GoodwillAcquiredDuringPeriod |
Goodwill, Deconsolidation of Italian investment |  | (7.2)pag_GoodwillWrittenOffRelatedToSaleOfBusinessUnitAndImpairmentLosses |
Goodwill, Reconsolidation of Italian investment |  | 7.4 pag_GoodwillReconsolidationFromBusinessCombination |
Goodwill, Foreign currency translation | (34.0)us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments | 7.7 us-gaap_GoodwillTranslationAndPurchaseAccountingAdjustments |
Goodwill, Ending Balance | 1,266.3 us-gaap_Goodwill | 1,134.9 us-gaap_Goodwill |
Other indefinite-lived intangible assets, Beginning Balance | 295.2 us-gaap_OtherIndefiniteLivedIntangibleAssets | 271.5 us-gaap_OtherIndefiniteLivedIntangibleAssets |
Other indefinite-lived intangible assets, Additions | 101.0 us-gaap_IndefinitelivedIntangibleAssetsAcquired | 22.1 us-gaap_IndefinitelivedIntangibleAssetsAcquired |
Other indefinite-lived intangible assets, Deconsolidation of Italian investment, Deconsolidation of Italian investment |  | (2.9)pag_IndefiniteLivedIntangibleWriteOffRelatedToSaleOfBusinessUnitAndImpairmentLosses |
Other indefinite-lived intangible assets, Reconsolidation of Italian investment |  | 3.1 pag_IndefiniteLivedIntangibleReconsolidationFromBusinessCombination |
Other indefinite-lived intangible assets, Foreign currency translation | (10.0)us-gaap_IndefiniteLivedIntangibleAssetsTranslationAndPurchaseAccountingAdjustments | 1.4 us-gaap_IndefiniteLivedIntangibleAssetsTranslationAndPurchaseAccountingAdjustments |
Other indefinite-lived intangible assets, Ending Balance | $ 386.2 us-gaap_OtherIndefiniteLivedIntangibleAssets | $ 295.2 us-gaap_OtherIndefiniteLivedIntangibleAssets |

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- Definition Represents the amount of goodwill on account of business combination of all or a portion of a reporting unit during the period. + References No definition available. + Details
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- Definition Represents the amount of goodwill written off on account of impairment losses and on sale of all or a portion of a reporting unit during the period. + References No definition available. + Details
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- Definition Represents the amount of indefinite-lived intangible assets on account of business combination of all or a portion of a reporting unit during the period. + References No definition available. + Details
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- Definition Represents the amount of indefinite-lived intangible assets written off on account of impairment losses and on sale of all or a portion of a reporting unit during the period. + References No definition available. + Details
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- Definition The accumulated impairment losses related to indefinite-lived intangible assets other than goodwill as of the balance sheet date. + References No definition available. + Details
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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=35741047&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 accumulated impairment loss for 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 -Subparagraph (a,h) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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- Definition Amount of increase (decrease) from foreign currency translation adjustments and purchase accounting adjustments 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 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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