XML 61 R50.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Credit Facilities (Details Textual) $ in Thousands | 3 Months Ended |
--- | --- | ---
Sep. 30, 2017 USD ($) loan | Dec. 31, 2016 USD ($)
Line of Credit Facility [Line Items] |  |
Floorplan Offset | $ (46,248) | $ (59,626)
FMCC Offset | (22,000) | $ (25,500)
Revolving Credit Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Maximum borrowing capacity under line of credit facility | $ 1,800,000 |
Expiry date of Revolving Credit Facility | Jun. 17, 2021 |
Number of financial institutions | loan | 24 |
Number of Manufacturer-affiliated finance companies | loan | 6 |
Number of tranches | 2 |
Line Of Credit Facility Maximum Borrowing Capacity Can Be Extended Amount | $ 2,100,000 |
Line of credit facility, Unamortized Cost | $ 4,500 |
Maximum Limit Of Restricted Payment Basket | the sum of $208.5 million plus (or minus if negative) (a) one-half of the aggregate consolidated net income for the period beginning on April 1, 2014 and ending on the date of determination and (b) the amount of net cash proceeds received from the sale of capital stock after June 2, 2014 and ending on the date of determination less (c) cash dividends and share repurchases after June 2, 2014 |
Restricted payment | $ 134,400 |
Brazil Credit Facilities [Member] |  |
Line of Credit Facility [Line Items] |  |
Line of Credit Facility, Amount Outstanding | 22,500 |
FMCC Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Maximum borrowing capacity under line of credit facility | $ 300,000 |
Debt Instrument, Basis Spread on Variable Rate | 1.50% |
Line of Credit Facility, Fair Value of Amount Outstanding | $ 131,700 |
Available amount under borrowing capacity | $ 168,300 |
Cancellation of agreement | 30 days |
Debt interest rate | 5.75% |
Revolving Credit Facility, Floorplan Line [Member] |  |
Line of Credit Facility [Line Items] |  |
Maximum borrowing capacity under line of credit facility | $ 1,750,000 |
Commitment fees, Percentage | 0.15% |
Maximum period for outstanding borrowing | 1 year |
Line of Credit Facility, Amount Outstanding | $ 1,017,200 |
Available amount under borrowing capacity | 422,800 |
Floorplan Offset | $ (46,200) |
Weighted average interest rate | 0.00% | 2.00%
Revolving Credit Facility, Floorplan Line, New Vehicles [Member] |  |
Line of Credit Facility [Line Items] |  |
Debt Instrument, Basis Spread on Variable Rate | 1.25% |
Revolving Credit Facility, Floorplan Line, Used Vehicles [Member] |  |
Line of Credit Facility [Line Items] |  |
Debt Instrument, Basis Spread on Variable Rate | 1.50% |
Revolving Credit Facility, Acquisition Line [Member] |  |
Line of Credit Facility [Line Items] |  |
Maximum borrowing capacity under line of credit facility | $ 360,000 |
Line Of Credit Facility, Minimum Borrowing Capacity | $ 50,000 |
Debt Instrument, Basis Spread on Variable Rate | 1.50% |
Line of Credit Facility, Amount Outstanding | $ 33,508 | $ 0
Available amount under borrowing capacity | 297,100 |
Letters of credit outstanding | 29,300 |
Rental Vehicle Credit Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Line of Credit Facility, Amount Outstanding | 114,300 |
UK Credit Facilities [Member] |  |
Line of Credit Facility [Line Items] |  |
Line of Credit Facility, Amount Outstanding | $ 123,100 |
Minimum [Member] | Brazil Credit Facilities [Member] |  |
Line of Credit Facility [Line Items] |  |
Debt interest rate | 12.67% |
Debt Instrument Maturity Date Period | 1 month |
Grace Period for Outstanding Borrowings | 0 days |
Minimum [Member] | Revolving Credit Facility, Acquisition Line [Member] |  |
Line of Credit Facility [Line Items] |  |
Commitment fees, Percentage | 0.20% |
Minimum [Member] | UK Credit Facilities [Member] |  |
Line of Credit Facility [Line Items] |  |
Debt interest rate | 1.25% |
Maximum [Member] | Brazil Credit Facilities [Member] |  |
Line of Credit Facility [Line Items] |  |
Debt interest rate | 18.86% |
Debt Instrument Maturity Date Period | 12 months |
Grace Period for Outstanding Borrowings | 90 days |
Maximum [Member] | Revolving Credit Facility, Acquisition Line [Member] |  |
Line of Credit Facility [Line Items] |  |
Commitment fees, Percentage | 0.45% |
Maximum [Member] | Rental Vehicle Credit Facility [Member] |  |
Line of Credit Facility [Line Items] |  |
Debt interest rate | 5.75% |
Debt Instrument Maturity Date Period | 2 years |
Maximum [Member] | UK Credit Facilities [Member] |  |
Line of Credit Facility [Line Items] |  |
Debt interest rate | 3.95% |
United States of America, Dollars | Minimum [Member] | Revolving Credit Facility, Acquisition Line [Member] |  |
Line of Credit Facility [Line Items] |  |
Debt Instrument, Basis Spread on Variable Rate | 0.00% |
United States of America, Dollars | Maximum [Member] | Revolving Credit Facility, Acquisition Line [Member] |  |
Line of Credit Facility [Line Items] |  |
Debt Instrument, Basis Spread on Variable Rate | 1.00% |
Euros or Pound Sterling [Member] | Revolving Credit Facility, Acquisition Line [Member] |  |
Line of Credit Facility [Line Items] |  |
Maximum borrowing capacity under line of credit facility | $ 125,000 |
Euros or Pound Sterling [Member] | Minimum [Member] | Revolving Credit Facility, Acquisition Line [Member] |  |
Line of Credit Facility [Line Items] |  |
Debt Instrument, Basis Spread on Variable Rate | 1.25% |
Euros or Pound Sterling [Member] | Maximum [Member] | Revolving Credit Facility, Acquisition Line [Member] |  |
Line of Credit Facility [Line Items] |  |
Debt Instrument, Basis Spread on Variable Rate | 2.50% |

X
- Definition Debt Instrument Maturity Date Period + References No definition available. + Details
Name: | gpi_DebtInstrumentMaturityDatePeriod
Namespace Prefix: | gpi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition FMCC Offset + References No definition available. + Details
Name: | gpi_FMCCOffset
Namespace Prefix: | gpi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Floorplan offset. + References No definition available. + Details
Name: | gpi_FloorplanOffset
Namespace Prefix: | gpi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Grace period for outstanding borrowings + References No definition available. + Details
Name: | gpi_GracePeriodforOutstandingBorrowings
Namespace Prefix: | gpi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line of credit facility, maximum borrowing capacity can be extended, amount. + References No definition available. + Details
Name: | gpi_LineOfCreditFacilityMaximumBorrowingCapacityCanBeExtendedAmount
Namespace Prefix: | gpi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line of credit facility minimum borrowing capacity for working capital and general corporate purposes, including acquisitions. + References No definition available. + Details
Name: | gpi_LineOfCreditFacilityMinimumBorrowingCapacity
Namespace Prefix: | gpi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Line of credit facility, unamortized cost. + References No definition available. + Details
Name: | gpi_LineOfCreditFacilityUnamortizedCost
Namespace Prefix: | gpi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Maximum limit of restricted payment. + References No definition available. + Details
Name: | gpi_MaximumLimitOfRestrictedPayment
Namespace Prefix: | gpi_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum period for outstanding borrowing. + References No definition available. + Details
Name: | gpi_MaximumPeriodForOutstandingBorrowing
Namespace Prefix: | gpi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of days related to cancellation of contract. + References No definition available. + Details
Name: | gpi_NumberOfDaysRelatedToCancellationOfContract
Namespace Prefix: | gpi_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of financial institutions. + References No definition available. + Details
Name: | gpi_NumberOfFinancialInstitutions
Namespace Prefix: | gpi_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of Manufacturer-affiliated finance companies. + References No definition available. + Details
Name: | gpi_NumberOfManufacturerAffiliatedFinanceCompanies
Namespace Prefix: | gpi_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of tranches + References No definition available. + Details
Name: | gpi_Numberoftranches
Namespace Prefix: | gpi_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition Restricted Payment Basket + References No definition available. + Details
Name: | gpi_RestrictedPaymentBasket
Namespace Prefix: | gpi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted average interest rate of debt outstanding. + References No definition available. + Details
Name: | us-gaap_DebtWeightedAverageInterestRate
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The total amount of the contingent obligation under letters of credit outstanding as of the reporting date. + References No definition available. + Details
Name: | us-gaap_LettersOfCreditOutstandingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 + Details
Name: | us-gaap_LineOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Date the credit facility terminates, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityExpirationDate1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Fair value of the amount outstanding under the credit facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13433-108611 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13476-108611 + Details
Name: | us-gaap_LineOfCreditFacilityFairValueOfAmountOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The effective interest rate at the end of the reporting period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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_LineOfCreditFacilityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
Name: | us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=gpi_BrazilianCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=gpi_FMCCFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=gpi_RevolvingCreditFacilityFloorplanLineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=gpi_RevolvingCreditFacilityFloorplanLineNewVehiclesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=gpi_RevolvingCreditFacilityFloorplanLineUsedVehiclesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=gpi_RevolvingCreditFacilityAcquisitionLineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=gpi_RentalVehicleCreditFacilityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=gpi_UKCreditFacilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | gpi_BorrowingscurrencyAxis=currency_USD
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | gpi_BorrowingscurrencyAxis=gpi_EurosorPoundSterlingMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |