XML 102 R69.htm IDEA: XBRL DOCUMENT v2.4.1.9

Credit Facilities (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Credit Facility (Textual) [Abstract]
Outstanding balance, borrowing capacity	$ 1,098,126,000us-gaap_LineOfCreditFacilityAmountOutstanding
Available amount under borrowing capacity	281,900,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
FMCC Offset	22,500,000gpi_FMCCOffset	0gpi_FMCCOffset
Offset account related to floorplan notes payable - credit facility	(39,616,000)gpi_FloorplanOffset	(56,198,000)gpi_FloorplanOffset
Maximum Limit of Restricted Payment	125
Floorplan Notes Payable Manufacturer Affiliates	307,656,000gpi_FloorplanNotesPayableManufacturerAffiliates	346,572,000gpi_FloorplanNotesPayableManufacturerAffiliates
Acquisition Line [Member]
Credit Facility (Textual) [Abstract]
Outstanding balance, borrowing capacity	69,713,000us-gaap_LineOfCreditFacilityAmountOutstanding / us-gaap_LineOfCreditFacilityAxis = gpi_AcquisitionLineMember
Letters of credit outstanding	43,200,000us-gaap_LettersOfCreditOutstandingAmount / us-gaap_LineOfCreditFacilityAxis = gpi_AcquisitionLineMember
Revolving Credit Facility [Member]
Credit Facility (Textual) [Abstract]
Number of financial institution	25gpi_NumberOfFinancialInstitutions / us-gaap_LineOfCreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember
Number of Manufacturer-affiliated finance companies	6gpi_NumberOfManufacturerAffiliatedFinanceCompanies / us-gaap_LineOfCreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember
Expiry date of Revolving Credit Facility	Jun. 20, 2018
Line of credit facility, maximum borrowing capacity can be extended, amount	1,950,000,000gpi_LineOfCreditFacilityMaximumBorrowingCapacityCanBeExtendedAmount / us-gaap_LineOfCreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember
Line of credit facility, unamortized cost	5,300,000gpi_LineOfCreditFacilityUnamortizedCost / us-gaap_LineOfCreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember
Restricted Payment Basket	181,600,000gpi_RestrictedPaymentBasket / us-gaap_LineOfCreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember
Revolving Credit Facility [Member] | Amended terms [Domain]
Credit Facility (Textual) [Abstract]
Maximum borrowing capacity under line of credit facility	1,700,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / gpi_AmendedtermsAxis = gpi_AmendedtermsDomain / us-gaap_LineOfCreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember
Revolving Credit Facility [Member] | Original terms [Member]
Credit Facility (Textual) [Abstract]
Maximum borrowing capacity under line of credit facility	1,350,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / gpi_AmendedtermsAxis = gpi_OriginaltermsMember / us-gaap_LineOfCreditFacilityAxis = us-gaap_RevolvingCreditFacilityMember
FMCC Facility [Member]
Credit Facility (Textual) [Abstract]
Maximum borrowing capacity under line of credit facility	300,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_LineOfCreditFacilityAxis = gpi_FmccFacilityMember
Basis spread on interest rate	1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LineOfCreditFacilityAxis = gpi_FmccFacilityMember
Available amount under borrowing capacity	172,300,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity / us-gaap_LineOfCreditFacilityAxis = gpi_FmccFacilityMember
Cancellation of agreement	30 days
Floorplan Notes Payable Manufacturer Affiliates Gross	150,183,000gpi_FloorplanNotesPayableManufacturerAffiliatesGross / us-gaap_LineOfCreditFacilityAxis = gpi_FmccFacilityMember
Floorplan Notes Payable Manufacturer Affiliates	127,683,000gpi_FloorplanNotesPayableManufacturerAffiliates / us-gaap_LineOfCreditFacilityAxis = gpi_FmccFacilityMember	190,954,000gpi_FloorplanNotesPayableManufacturerAffiliates / us-gaap_LineOfCreditFacilityAxis = gpi_FmccFacilityMember
Debt interest rate	4.75%us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd / us-gaap_LineOfCreditFacilityAxis = gpi_FmccFacilityMember
UK Credit Facilities [Member]
Credit Facility (Textual) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	1.41%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_LineOfCreditFacilityAxis = gpi_UKCreditFacilitiesMember
Interest rate, maximum	3.95%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_LineOfCreditFacilityAxis = gpi_UKCreditFacilitiesMember
Brazil credit facilities [Member]
Credit Facility (Textual) [Abstract]
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum	15.90%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMinimum / us-gaap_LineOfCreditFacilityAxis = gpi_BrazilcreditfacilitiesMember
Interest rate, maximum	20.70%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_LineOfCreditFacilityAxis = gpi_BrazilcreditfacilitiesMember
Rental Vehicle [Member]
Credit Facility (Textual) [Abstract]
Interest rate, maximum	4.80%us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum / us-gaap_LineOfCreditFacilityAxis = gpi_RentalVehicleCreditFacilityMember
Floorplan Line [Member]
Credit Facility (Textual) [Abstract]
Maximum borrowing capacity under line of credit facility	1,600,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_LongtermDebtTypeAxis = gpi_FloorplanLineMember
Commitment fees, Percentage	0.20%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage / us-gaap_LongtermDebtTypeAxis = gpi_FloorplanLineMember
Weighted average interest rate	1.40%us-gaap_DebtWeightedAverageInterestRate / us-gaap_LongtermDebtTypeAxis = gpi_FloorplanLineMember	1.40%us-gaap_DebtWeightedAverageInterestRate / us-gaap_LongtermDebtTypeAxis = gpi_FloorplanLineMember
Maximum period for outstanding borrowing	1 year
Floorplan Line [Member] | New Vehicle [Member]
Credit Facility (Textual) [Abstract]
Basis spread on interest rate	1.25%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LineOfCreditFacilityAxis = gpi_NewVehicleMember / us-gaap_LongtermDebtTypeAxis = gpi_FloorplanLineMember
Floorplan Line [Member] | Used Vehicle [Member]
Credit Facility (Textual) [Abstract]
Basis spread on interest rate	1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LineOfCreditFacilityAxis = gpi_UsedVehicleMember / us-gaap_LongtermDebtTypeAxis = gpi_FloorplanLineMember
Acquisition Line [Member]
Credit Facility (Textual) [Abstract]
Maximum borrowing capacity under line of credit facility	320,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / us-gaap_LongtermDebtTypeAxis = gpi_AcquisitionLineMember
Line of credit facility minimum borrowing capacity	100,000,000gpi_Lineofcreditfacilityminimumborrowingcapacity / us-gaap_LongtermDebtTypeAxis = gpi_AcquisitionLineMember
Basis spread on interest rate	1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / us-gaap_LongtermDebtTypeAxis = gpi_AcquisitionLineMember
Restricted payment maximum	100,000,000gpi_RestrictedPaymentMaximum / us-gaap_LongtermDebtTypeAxis = gpi_AcquisitionLineMember
Available amount under borrowing capacity	207,100,000us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity / us-gaap_LongtermDebtTypeAxis = gpi_AcquisitionLineMember
Maximum [Member] | Acquisition Line [Member]
Credit Facility (Textual) [Abstract]
Commitment fees, Percentage	0.45%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage / us-gaap_LongtermDebtTypeAxis = gpi_AcquisitionLineMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Minimum [Member] | Acquisition Line [Member]
Credit Facility (Textual) [Abstract]
Commitment fees, Percentage	0.25%us-gaap_LineOfCreditFacilityUnusedCapacityCommitmentFeePercentage / us-gaap_LongtermDebtTypeAxis = gpi_AcquisitionLineMember / us-gaap_RangeAxis = us-gaap_MinimumMember
United States of America, Dollars | Maximum [Member] | Acquisition Line [Member]
Credit Facility (Textual) [Abstract]
Basis spread on interest rate	1.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / gpi_BorrowingscurrencyAxis = currency_USD / us-gaap_LongtermDebtTypeAxis = gpi_AcquisitionLineMember / us-gaap_RangeAxis = us-gaap_MaximumMember
United States of America, Dollars | Minimum [Member] | Acquisition Line [Member]
Credit Facility (Textual) [Abstract]
Basis spread on interest rate	0.00%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / gpi_BorrowingscurrencyAxis = currency_USD / us-gaap_LongtermDebtTypeAxis = gpi_AcquisitionLineMember / us-gaap_RangeAxis = us-gaap_MinimumMember
Euros or Pound Sterling [Member] | Acquisition Line [Member]
Credit Facility (Textual) [Abstract]
Maximum borrowing capacity under line of credit facility	$ 125,000,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity / gpi_BorrowingscurrencyAxis = gpi_EurosorPoundSterlingMember / us-gaap_LongtermDebtTypeAxis = gpi_AcquisitionLineMember
Euros or Pound Sterling [Member] | Maximum [Member] | Acquisition Line [Member]
Credit Facility (Textual) [Abstract]
Basis spread on interest rate	2.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / gpi_BorrowingscurrencyAxis = gpi_EurosorPoundSterlingMember / us-gaap_LongtermDebtTypeAxis = gpi_AcquisitionLineMember / us-gaap_RangeAxis = us-gaap_MaximumMember
Euros or Pound Sterling [Member] | Minimum [Member] | Acquisition Line [Member]
Credit Facility (Textual) [Abstract]
Basis spread on interest rate	1.50%us-gaap_DebtInstrumentBasisSpreadOnVariableRate1 / gpi_BorrowingscurrencyAxis = gpi_EurosorPoundSterlingMember / us-gaap_LongtermDebtTypeAxis = gpi_AcquisitionLineMember / us-gaap_RangeAxis = us-gaap_MinimumMember

X

- Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amounts payable for the financing of specific new vehicle inventory with Ford Motor Credit Company, the financing of new and used vehicle inventory in the United Kingdom with BMW Financial Services and the financing of rental vehicle inventory with several other manufacturers. Payments on floor plan notes payable are generally due as the vehicles are sold.

+ References

No definition available.

+ Details

Name:	gpi_FloorplanNotesPayableManufacturerAffiliates
Namespace Prefix:	gpi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Floorplan Notes Payable Manufacturer Affiliates Gross

+ References

No definition available.

+ Details

Name:	gpi_FloorplanNotesPayableManufacturerAffiliatesGross
Namespace Prefix:	gpi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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

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

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

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

Restricted payment maximum.

+ References

No definition available.

+ Details

Name:	gpi_RestrictedPaymentMaximum
Namespace Prefix:	gpi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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

Maximum contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5



Reference 2: 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(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentageRateRangeMaximum
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Minimum contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5



Reference 2: 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(a)(2))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

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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

Amount borrowed under the credit facility as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

Name:	us-gaap_LineOfCreditFacilityAmountOutstanding
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



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

Name:	us-gaap_LineOfCreditFacilityExpirationDate1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:dateItemType
Balance Type:	na
Period Type:	duration

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



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

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Name:	us-gaap_LineOfCreditFacilityInterestRateAtPeriodEnd
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

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



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

+ Details

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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



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

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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

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- Details

Name:	gpi_BorrowingscurrencyAxis=currency_USD
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Period Type:

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- Details

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- Details

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Period Type:

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- Details

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Period Type:

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- Details

Name:	us-gaap_LineOfCreditFacilityAxis=gpi_FmccFacilityMember
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Period Type:

X

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=gpi_RentalVehicleCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=gpi_UKCreditFacilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LineOfCreditFacilityAxis=us-gaap_RevolvingCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

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- Details

Name:	us-gaap_LongtermDebtTypeAxis=gpi_AcquisitionLineMember
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Data Type:	na
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Period Type:

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- Details

Name:	us-gaap_LongtermDebtTypeAxis=gpi_FloorplanLineMember
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Period Type:

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