XML 48 R37.htm IDEA: XBRL DOCUMENT
v3.20.2

Interim Financial Statements - COVID-19 Disclosure (Details) $ in Millions |  |  | 1 Months Ended | 2 Months Ended | 3 Months Ended | 9 Months Ended | 12 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Aug. 01, 2020 USD ($) | Mar. 24, 2020 | Mar. 31, 2020 | Mar. 31, 2020 employee | Sep. 30, 2020 USD ($) employee | Mar. 31, 2020 USD ($) | Sep. 30, 2019 USD ($) | Sep. 30, 2020 USD ($) employee | Sep. 30, 2019 USD ($) | Dec. 31, 2020 | Dec. 31, 2019 USD ($) | Oct. 01, 2020 employee | Aug. 31, 2020 USD ($) | Dec. 31, 2018 USD ($)
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  | $ 5,971.6 |  | $ 5,967.6 | $ 14,631.8 | $ 17,287.8 |  |  |  |  |
Cash |  |  |  |  | 92.7 |  | $ 77.5 | 92.7 | $ 77.5 |  | $ 28.1 |  |  | $ 39.4
Available funds, revolving credit facilities |  |  |  |  | 1,000.0 |  |  | 1,000.0 |  |  |  |  |  |
Repayments of senior subordinated notes |  |  |  |  | $ 300.0 |  |  | $ 300.0 |  |  |  |  |  |
PTL |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Ownership interest in PTS (as a percent) |  |  |  |  |  |  |  | 28.90% |  |  |  |  |  |
3.75% senior subordinated notes redeemed August 15, 2020 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  | 3.75% |  |  | 3.75% |  |  | 3.75% |  |  |
3.50% senior subordinated notes due 2025 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  | 3.50% |  |  | 3.50% |  |  |  |  | 3.50% |
Principal amount |  |  |  |  | $ 550.0 |  |  | $ 550.0 |  |  |  |  | $ 550.0 |
5.75% senior subordinated notes due 2022 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interest rate (as a percent) |  |  |  |  | 5.75% |  |  | 5.75% |  |  | 5.75% | 5.75% |  |
Principal amount |  |  |  |  | $ 550.0 |  |  | $ 550.0 |  |  |  |  |  |
US Credit Agreement Revolving Credit Line |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Increase in borrowing capacity | $ 100.0 |  |  |  |  |  |  |  |  |  |  |  |  |
Retail Automotive Dealership |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  | $ 20,600.0 |  |  |
COVID-19 Risk |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of decrease in selling, general, and administrative expenses |  |  |  |  | 10.10% |  |  |  |  |  |  |  |  |
Estimated capital expenditures postponed |  |  |  |  |  | $ 150.0 |  |  |  |  |  |  |  |
Number of employees furloughed | employee |  |  |  | 15,000 |  |  |  |  |  |  |  |  |  |
Temporary reduction in the salary for the CEO and President, percentage |  |  |  |  |  |  |  |  |  | 100.00% |  |  |  |
Temporary reduction in the salary for other executive officers, percentage |  |  |  |  |  |  |  |  |  | 25.00% |  |  |  |
Incentive financing (as percent) |  |  | 0.00% |  |  |  |  |  |  |  |  |  |  |
Number of employees that remain furloughed | employee |  |  |  |  |  |  |  |  |  |  |  | 650 |  |
Reduction in number of employees | employee |  |  |  |  |  |  |  | 3,700 |  |  |  |  |  |
Reduction in number of employees (as a percent) |  |  |  |  |  |  |  | 14.00% |  |  |  |  |  |
Period of temporary reduction in salary of CEO and president |  |  |  |  |  |  |  |  |  | 6 months |  |  |  |
Period of cash compensation waived by board of directors |  |  |  |  |  |  |  |  |  | 6 months |  |  |  |
Reduction to selling, general, and administrative expenses for the amount of government assistance received |  |  |  |  | $ 8.0 |  |  | $ 63.9 |  |  |  |  |  |
COVID-19 Risk | PTL |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of employees furloughed | employee |  |  |  |  | 5,000 |  |  |  |  |  |  |  |  |
Percentage reduction in executive management pay |  |  |  |  | 30.00% |  |  |  |  |  |  |  |  |
COVID-19 Risk | U.S and other |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Government assistance |  |  |  |  | $ 1.9 |  |  | 8.3 |  |  |  |  |  |
COVID-19 Risk | UK |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Government assistance |  |  |  |  | $ 6.0 |  |  | $ 55.5 |  |  |  |  |  |
COVID-19 Risk | UK | Minimum |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of employees furloughed |  | 90.00% |  |  |  |  |  |  |  |  |  |  |  |
COVID-19 Risk | Used supercenters | U.S. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage decline in same store unit sales |  |  |  |  | 8.90% |  |  |  |  |  |  |  |  |
COVID-19 Risk | Used supercenters | UK |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of increase in gross profit per unit |  |  |  |  | 121.10% |  |  |  |  |  |  |  |  |
Percentage decline in same store unit sales |  |  |  |  | 12.70% |  |  |  |  |  |  |  |  |
COVID-19 Risk | Retail Automotive Dealership | U.S. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage decline in unit volume |  |  |  |  | 10.40% |  |  |  |  |  |  |  |  |
COVID-19 Risk | Retail Automotive Dealership | UK |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage increase in unit volume |  |  |  |  | 2.40% |  |  |  |  |  |  |  |  |
COVID-19 Risk | Retail Automotive Dealership | New vehicle |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage increase in same store business |  |  |  |  | 71.00% |  |  |  |  |  |  |  |  |
Percentage of increase in gross profit per unit |  |  |  |  | 27.80% |  |  |  |  |  |  |  |  |
Percentage decline in same store business |  |  |  |  | 5.80% |  |  |  |  |  |  |  |  |
COVID-19 Risk | Retail Automotive Dealership | New vehicle | U.S. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of increase in gross profit per unit |  |  |  |  | 32.30% |  |  |  |  |  |  |  |  |
COVID-19 Risk | Retail Automotive Dealership | New vehicle | UK |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of increase in gross profit per unit |  |  |  |  | 25.90% |  |  |  |  |  |  |  |  |
COVID-19 Risk | Retail Automotive Dealership | Used vehicle |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage increase in same store business |  |  |  |  | 65.00% |  |  |  |  |  |  |  |  |
Percentage of increase in gross profit per unit |  |  |  |  | 67.30% |  |  |  |  |  |  |  |  |
Percentage decline in same store business |  |  |  |  | 3.60% |  |  |  |  |  |  |  |  |
COVID-19 Risk | Retail Automotive Dealership | Used vehicle | U.S. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of increase in gross profit per unit |  |  |  |  | 46.10% |  |  |  |  |  |  |  |  |
COVID-19 Risk | Retail Automotive Dealership | Used vehicle | UK |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of increase in gross profit per unit |  |  |  |  | 108.60% |  |  |  |  |  |  |  |  |
COVID-19 Risk | Retail Automotive Dealership | Service and parts |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage increase in same store business |  |  |  |  | 51.00% |  |  |  |  |  |  |  |  |
Percentage decline in revenue compared to the prior year |  |  |  |  | 2.40% |  |  |  |  |  |  |  |  |
COVID-19 Risk | Retail Automotive Dealership | Service and parts | U.S. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage decline in revenue compared to the prior year |  |  |  |  | 6.10% |  |  |  |  |  |  |  |  |
COVID-19 Risk | Retail Automotive Dealership | Service and parts | UK |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage increase in revenue compared to the prior year |  |  |  |  | 7.30% |  |  |  |  |  |  |  |  |
COVID-19 Risk | Retail Commercial Truck Dealership | North American Class 8 Retail | U.S. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Interim Financial Statements |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage decline in business |  |  |  |  | 31.00% |  |  |  |  |  |  |  |  |
Percentage decline in same store unit sales |  |  |  |  | 15.50% |  |  |  |  |  |  |  |  |
Percentage decrease in revenue |  |  |  |  | 10.80% |  |  |  |  |  |  |  |  |

X
- Definition Available funds through revolving credit facilities. + References No definition available. + Details
Name: | pag_AvailabilityOfFundsThroughRevolvingCreditFacilities
Namespace Prefix: | pag_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The estimated capital expenditures postponed. + References No definition available. + Details
Name: | pag_EstimatedCapitalExpendituresPostponed
Namespace Prefix: | pag_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The incentive financing rate. + References No definition available. + Details
Name: | pag_FinancingIncentivePercentage
Namespace Prefix: | pag_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of government assistance received including tax credits or direct wage or health care assistance payments. + References No definition available. + Details
Name: | pag_GovernmentAssistanceAmount
Namespace Prefix: | pag_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Represents the increase in the maximum borrowing capacity. + References No definition available. + Details
Name: | pag_LineOfCreditFacilityIncreaseInMaximumBorrowingCapacity
Namespace Prefix: | pag_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The approximate number of employees furloughed. + References No definition available. + Details
Name: | pag_NumberOfEmployeesFurloughed
Namespace Prefix: | pag_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of employees that remain furloughed. + References No definition available. + Details
Name: | pag_NumberOfEmployeesRemainingFurloughed
Namespace Prefix: | pag_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Represents the percentage decline in business. + References No definition available. + Details
Name: | pag_PercentageDeclineInBusiness
Namespace Prefix: | pag_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the percentage decline in revenue compared to the prior year. + References No definition available. + Details
Name: | pag_PercentageDeclineInRevenueComparedToPriorYear
Namespace Prefix: | pag_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the percentage decline in same store business. + References No definition available. + Details
Name: | pag_PercentageDeclineInSameStoreBusiness
Namespace Prefix: | pag_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the percentage decline in same store unit sales. + References No definition available. + Details
Name: | pag_PercentageDeclineInSameStoreUnitSales
Namespace Prefix: | pag_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the percentage decline in unit volume. + References No definition available. + Details
Name: | pag_PercentageDeclineInUnitVolume
Namespace Prefix: | pag_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage decrease in revenue. + References No definition available. + Details
Name: | pag_PercentageDecreaseInRevenue
Namespace Prefix: | pag_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the percentage of increase in gross profit per unit. + References No definition available. + Details
Name: | pag_PercentageIncreaseInGrossProfit
Namespace Prefix: | pag_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the percentage increase in revenue compared to the prior year. + References No definition available. + Details
Name: | pag_PercentageIncreaseInRevenueComparedToPriorYear
Namespace Prefix: | pag_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the percentage increase in same store business. + References No definition available. + Details
Name: | pag_PercentageIncreaseInSameStoreBusiness
Namespace Prefix: | pag_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the percentage increase in unit volume + References No definition available. + Details
Name: | pag_PercentageIncreaseInUnitVolume
Namespace Prefix: | pag_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage of decrease in selling, general, and administrative expenses of total revenue. + References No definition available. + Details
Name: | pag_PercentageOfDecreaseInSellingGeneralAndAdministrativeExpensesOnTotalRevenue
Namespace Prefix: | pag_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Represents the percentage of employees furloughed. + References No definition available. + Details
Name: | pag_PercentageOfEmployeesFurloughed
Namespace Prefix: | pag_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage reduction in executive management pay. + References No definition available. + Details
Name: | pag_PercentageReductionInExecutiveManagementPay
Namespace Prefix: | pag_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period of cash compensation waived by board of directors. + References No definition available. + Details
Name: | pag_PeriodOfCashCompensationWaivedByBoardOfDirectors
Namespace Prefix: | pag_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period of temporary reduction in salary of CEO and president. + References No definition available. + Details
Name: | pag_PeriodOfTemporaryReductionInSalaryOfCEOAndPresident
Namespace Prefix: | pag_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage reduction in the number of employees in workforce. + References No definition available. + Details
Name: | pag_ReductionInNumberOfEmployeesPercentage
Namespace Prefix: | pag_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The reduction in number of employees in workforce. + References No definition available. + Details
Name: | pag_ReductionInWorkforceNumberOfEmployees
Namespace Prefix: | pag_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The reduction to selling, general, and administrative expenses for the amount of government assistance received. + References No definition available. + Details
Name: | pag_ReductionToSellingGeneralAndAdministrativeExpensesRelatedToGovernmentAssistance
Namespace Prefix: | pag_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The temporary reduction in the salary for the CEO and President, expressed as a percentage. + References No definition available. + Details
Name: | pag_TemporaryReductionInSalaryForChiefExecutiveOfficerAndPresidentPercentage
Namespace Prefix: | pag_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The temporary reduction in the salary for other executive officers, excluding the CEO and President, expressed as a percentage. + References No definition available. + Details
Name: | pag_TemporaryReductionInSalaryForOtherExecutiveOfficersPercentage
Namespace Prefix: | pag_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3044-108585 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121566466&loc=d3e6676-107765 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_CashAndCashEquivalentsAtCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
Name: | us-gaap_DebtInstrumentFaceAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage investment held by members or limited partners of limited liability company (LLC) or limited partnership (LP). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 272 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6373374&loc=d3e70478-108055 + Details
Name: | us-gaap_LimitedLiabilityCompanyLLCOrLimitedPartnershipLPMembersOrLimitedPartnersOwnershipInterest
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The cash outflow from the repayment of long-term borrowing where a lender is placed in a lien position behind debt having a higher priority of repayment (senior) in case of liquidation of the entity's assets or underlying collateral. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3291-108585 + Details
Name: | us-gaap_RepaymentsOfSubordinatedDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130543-203045 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121604090&loc=SL49130545-203045 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 924 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 11.L) -URI http://asc.fasb.org/extlink&oid=6472922&loc=d3e499488-122856 + Details
Name: | us-gaap_RevenueFromContractWithCustomerExcludingAssessedTax
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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_UnusualRiskOrUncertaintyLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | srt_OwnershipAxis=pag_PenskeTruckLeasingCoLPMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=pag_SeniorSubordinatedNotes3.75PercentDue2020Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=pag_SeniorSubordinatedNotes3.50PercentDue2025Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=pag_SeniorSubordinatedNotes5.75PercentDue2022Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LongtermDebtTypeAxis=pag_UsCreditAgreementRevolvingCreditLineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FranchisorDisclosureAxis=pag_RetailAutomotiveDealershipOperationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_UnusualRiskOrUncertaintyByNatureAxis=pag_Covid19RiskMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=pag_UnitedStatesAndOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_GB
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=pag_UsedSupercentersMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=pag_NewVehicleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=pag_UsedVehicleMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=pag_ServiceAndPartsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FranchisorDisclosureAxis=pag_RetailCommercialTruckDealershipOperationsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=pag_NorthAmericanClass8RetailMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |