XML 104 R87.htm IDEA: XBRL DOCUMENT
v3.3.1.900

Segment Information Segment Information (Details textuals) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2015 USD ($) | Sep. 30, 2015 USD ($) | Jun. 30, 2015 USD ($) | Dec. 31, 2014 USD ($) | Sep. 30, 2014 USD ($) | Jun. 30, 2014 USD ($) | Dec. 31, 2015 USD ($) | Dec. 31, 2014 USD ($) | Dec. 31, 2013 USD ($)
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Number of Reportable Segments |  |  |  |  |  |  | 3 |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  |  |  | $ 6,500
ASSET IMPAIRMENTS | $ 85,700 | $ 900 | $ 1,000 | $ 30,400 | $ 9,400 | $ 1,700 | $ 87,562 | $ 41,520 | 6,542
Gains (Losses) on Extinguishment of Debt |  |  |  |  |  |  | 0 | (46,403) | 0
U.S. [Member] |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Net Gain (Loss) on Real Estate and Dealership Transactions |  |  |  |  | 16,600 |  | 9,400 |  |
Tax impact of non-deductible acquisition costs |  |  |  |  |  |  |  |  | 1,700
ASSET IMPAIRMENTS |  |  |  |  |  |  | 18,983 | 15,570 | 6,542
Gains (Losses) on Extinguishment of Debt |  |  |  |  | $ 22,800 | $ 23,600 |  | (46,403) |
Brazil [Member] |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Income tax effect for reserve of certain deferred tax assets |  |  |  |  |  |  |  |  | 3,500
ASSET IMPAIRMENTS |  |  |  |  |  |  | 68,249 | 25,950 | 0
Gains (Losses) on Extinguishment of Debt |  |  |  |  |  |  |  | 0 |
Tax impact of deductible goodwill |  |  |  |  |  |  |  | 3,400 |
U.K. [Member] |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
ASSET IMPAIRMENTS |  |  |  |  |  |  | 330 | 0 | 0
Gains (Losses) on Extinguishment of Debt |  |  |  |  |  |  |  | 0 |
Pre-tax [Member] | U.S. [Member] |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Loss from Catastrophes |  |  |  |  |  |  | 1,600 | 2,800 | 12,200
Net Gain (Loss) on Real Estate and Dealership Transactions |  |  |  |  |  |  | 8,900 | $ 13,800 | 10,200
Payments for Legal Settlements |  |  |  |  |  |  | 1,000 |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  |  |  | 5,200
Pre-tax [Member] | Brazil [Member] |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  |  |  | 1,200
Net of taxes [Member] | U.S. [Member] |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Loss from Catastrophes |  |  |  |  |  |  | 1,000 |  | 7,400
Net Gain (Loss) on Real Estate and Dealership Transactions |  |  |  |  |  |  | 5,500 |  | 5,400
Business Combination, Acquisition Related Costs |  |  |  |  |  |  |  |  | 3,200
ASSET IMPAIRMENTS |  |  |  |  |  |  | 12,000 |  | 4,000
Net of taxes [Member] | Brazil [Member] |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  |  |  | $ 1,300
ASSET IMPAIRMENTS |  |  |  |  |  |  | $ 62,400 |  |

X
- Definition Income tax effect for reserve of certain deferred tax assets + References No definition available. + Details
Name: | gpi_Incometaxeffectforreserveofcertaindeferredtaxassets
Namespace Prefix: | gpi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Net Gain (Loss) on Real Estate and Dealership Transactions + References No definition available. + Details
Name: | gpi_NetGainLossonRealEstateandDealershipTransactions
Namespace Prefix: | gpi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Tax impact of deductible goodwill + References No definition available. + Details
Name: | gpi_Taximpactofdeductiblegoodwill
Namespace Prefix: | gpi_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Tax impact of non-deductible acquisition costs + References No definition available. + Details
Name: | gpi_Taximpactofnondeductibleacquisitioncosts
Namespace Prefix: | gpi_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=51824106&loc=d3e2420-110228 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 + Details
Name: | us-gaap_AssetImpairmentCharges
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition This element represents acquisition-related costs incurred to effect a business combination which costs have been expensed during the period. Such costs include finder's fees; advisory, legal, accounting, valuation, and other professional or consulting fees; general administrative costs, including the costs of maintaining an internal acquisitions department; and may include costs of registering and issuing debt and equity securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=34752592&loc=d3e1043-128460 + Details
Name: | us-gaap_BusinessCombinationAcquisitionRelatedCosts
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12317-112629 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 50 -Section 40 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=49170532&loc=d3e12355-112629 + Details
Name: | us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The charge against earnings in the period for the uninsured portion of a loss from a fire, explosion, or natural disaster (hurricane, earthquake). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.9) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 + Details
Name: | us-gaap_LossFromCatastrophes
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements. + References No definition available. + Details
Name: | us-gaap_NumberOfReportableSegments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of cash paid for the settlement of litigation or for other legal issues during the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 25 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3536-108585 + Details
Name: | us-gaap_PaymentsForLegalSettlements
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_SegmentReportingInformationLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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

X
- Details
Name: | us-gaap_StatementBusinessSegmentsAxis=country_BR
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | gpi_TaxeffectedAxis=gpi_PretaxMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | gpi_TaxeffectedAxis=gpi_NetoftaxesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |