XML 78 R53.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Business Combinations (Details) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2015 USD ($) item | Dec. 31, 2014 item
Business combinations |  |
Revenue from acquisition | $ | $ 553.9 |
Pre-tax income from acquisition | $ | $ 12.5 |
Retail Automotive Franchise |  |
Business combinations |  |
Number of acquired franchises | item | 5 | 2
Retail Commercial Truck Dealership |  |
Business combinations |  |
Number of dealerships acquired | item | 2 |

X
- Definition This element represents the amount of pre-tax income of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. + References No definition available. + Details
Name: | pag_BusinessCombinationProFormaInformationPreTaxIncomeOfAcquireeSinceAcquisitionDateActual
Namespace Prefix: | pag_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of franchises acquired. + References No definition available. + Details
Name: | pag_NumberOfFranchisesAcquired
Namespace Prefix: | pag_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the number of full service retail locations acquired. + References No definition available. + Details
Name: | pag_NumberOfFullServiceRetailLocationsAcquired
Namespace Prefix: | pag_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_BusinessAcquisitionLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition This element represents the amount of revenue of the acquiree since the acquisition date included in the consolidated income statement for the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1) -URI http://asc.fasb.org/extlink&oid=56956515&loc=d3e1392-128463 + Details
Name: | us-gaap_BusinessCombinationProFormaInformationRevenueOfAcquireeSinceAcquisitionDateActual
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=pag_AutomotiveRetailFranchisesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_BusinessAcquisitionAxis=pag_RetailCommercialTruckDealershipMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |