XML 25 R86.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Selected Quarterly Financial Data (Unaudited) (Details) (Textual) (USD $) | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2013
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |
Gains (Losses) on Extinguishment of Debt |  |  |  |  |  | $ (46,403,000)us-gaap_GainsLossesOnExtinguishmentOfDebt | $ 0 us-gaap_GainsLossesOnExtinguishmentOfDebt | $ 0 us-gaap_GainsLossesOnExtinguishmentOfDebt |
Valuation Allowance, Amount | 40,486,000 us-gaap_DeferredTaxAssetsValuationAllowance |  |  | 28,310,000 us-gaap_DeferredTaxAssetsValuationAllowance |  | 40,486,000 us-gaap_DeferredTaxAssetsValuationAllowance | 28,310,000 us-gaap_DeferredTaxAssetsValuationAllowance |  |
ASSET IMPAIRMENTS | 30,400,000 us-gaap_AssetImpairmentCharges | 9,400,000 us-gaap_AssetImpairmentCharges | 1,700,000 us-gaap_AssetImpairmentCharges |  |  | 41,520,000 us-gaap_AssetImpairmentCharges | 6,542,000 us-gaap_AssetImpairmentCharges | 7,276,000 us-gaap_AssetImpairmentCharges |
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill) | 25,600,000 us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill | 5,500,000 us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill |  | 5,400,000 us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill | 7,000,000 us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill | 31,000,000 us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill |  |  |
Deferred Tax Assets, Gross | 99,265,000 us-gaap_DeferredTaxAssetsGross |  |  | 98,234,000 us-gaap_DeferredTaxAssetsGross |  | 99,265,000 us-gaap_DeferredTaxAssetsGross | 98,234,000 us-gaap_DeferredTaxAssetsGross |  | 2,300,000 us-gaap_DeferredTaxAssetsGross
Impairment primarily related to the Company's real estate holdings |  |  |  |  |  | 1,300,000 us-gaap_ImpairmentOfRealEstate |  |  |
On certain deferred tax assets [Member] | Net of taxes [Member] |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |
Valuation Allowance, Amount |  |  |  | 3,500,000 us-gaap_DeferredTaxAssetsValuationAllowance / gpi_DeferredTaxAssetsAxis = gpi_OncertaindeferredtaxassetsMember / gpi_TaxeffectedAxis = gpi_NetoftaxesMember |  |  | 3,500,000 us-gaap_DeferredTaxAssetsValuationAllowance / gpi_DeferredTaxAssetsAxis = gpi_OncertaindeferredtaxassetsMember / gpi_TaxeffectedAxis = gpi_NetoftaxesMember |  |
UNITED STATES |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |
Gains (Losses) on Extinguishment of Debt |  | 22,800,000 us-gaap_GainsLossesOnExtinguishmentOfDebt / us-gaap_StatementBusinessSegmentsAxis = country_US | 23,400,000 us-gaap_GainsLossesOnExtinguishmentOfDebt / us-gaap_StatementBusinessSegmentsAxis = country_US |  |  |  |  |  |
Net Gain (Loss) on Real Estate and Dealership Transactions |  | 16,600,000 gpi_NetGainLossonRealEstateandDealershipTransactions / us-gaap_StatementBusinessSegmentsAxis = country_US |  |  |  |  |  | 1,500,000 gpi_NetGainLossonRealEstateandDealershipTransactions / us-gaap_StatementBusinessSegmentsAxis = country_US |
Number of Dealerships Disposed |  | 5 gpi_NumberOfDealershipsDisposed / us-gaap_StatementBusinessSegmentsAxis = country_US |  |  |  |  |  |  |
UNITED STATES | Net of taxes [Member] |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |
Net Gain (Loss) on Real Estate and Dealership Transactions |  |  |  |  |  |  | 5,400,000 gpi_NetGainLossonRealEstateandDealershipTransactions / us-gaap_StatementBusinessSegmentsAxis = country_US / gpi_TaxeffectedAxis = gpi_NetoftaxesMember |  |
ASSET IMPAIRMENTS |  |  |  |  |  |  | 4,000,000 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = country_US / gpi_TaxeffectedAxis = gpi_NetoftaxesMember | 4,400,000 us-gaap_AssetImpairmentCharges / us-gaap_StatementBusinessSegmentsAxis = country_US / gpi_TaxeffectedAxis = gpi_NetoftaxesMember |
BRAZIL |  |  |  |  |  |  |  |  |
Condensed Financial Statements, Captions [Line Items] |  |  |  |  |  |  |  |  |
Tax impact of deductible goodwill |  | $ 3,400,000 gpi_Taximpactofdeductiblegoodwill / us-gaap_StatementBusinessSegmentsAxis = country_BR |  |  |  |  |  |  |

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 Number of dealerships disposed. + References No definition available. + Details
Name: | gpi_NumberOfDealershipsDisposed
Namespace Prefix: | gpi_
Data Type: | xbrli:integerItemType
Balance Type: | na
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 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 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: 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=8077374&loc=d3e2420-110228 + Details
Name: | us-gaap_AssetImpairmentCharges
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_CondensedFinancialStatementsCaptionsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences and carryforwards. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Deferred Tax Asset -URI http://asc.fasb.org/extlink&oid=6510090 + Details
Name: | us-gaap_DeferredTaxAssetsGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
Name: | us-gaap_DeferredTaxAssetsValuationAllowance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: 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=6850294&loc=d3e12317-112629 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=6850294&loc=d3e12355-112629 + Details
Name: | us-gaap_GainsLossesOnExtinguishmentOfDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 3 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=26713463&loc=d3e16373-109275 + Details
Name: | us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The charge against earnings in the period to reduce the carrying amount of real property to fair value. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391110&loc=d3e2921-110230 + Details
Name: | us-gaap_ImpairmentOfRealEstate
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | gpi_DeferredTaxAssetsAxis=gpi_OncertaindeferredtaxassetsMember
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_US
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |