XML 68 R63.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Condensed Consolidated Financial Information Condensed Consolidated Balance Sheet (Details) (USD $) In Thousands, unless otherwise specified | Mar. 31, 2015 | Dec. 31, 2014 | Mar. 31, 2014 | Dec. 31, 2013
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Cash and Cash Equivalents, at Carrying Value | $ 26,279 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 40,975 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 17,687 us-gaap_CashAndCashEquivalentsAtCarryingValue | $ 20,215 us-gaap_CashAndCashEquivalentsAtCarryingValue
Contracts In Transit And Vehicle Receivables Net | 225,048 gpi_ContractsInTransitAndVehicleReceivablesNet | 237,448 gpi_ContractsInTransitAndVehicleReceivablesNet |  |
Accounts, Notes, Loans and Financing Receivable, Net, Current | 137,373 us-gaap_AccountsNotesAndLoansReceivableNetCurrent | 151,330 us-gaap_AccountsNotesAndLoansReceivableNetCurrent |  |
Intercompany accounts receivable current |  | 0 gpi_Intercompanyaccountsreceivablecurrent |  |
Inventories, net | 1,547,436 us-gaap_InventoryNet | 1,556,705 us-gaap_InventoryNet |  |
Deferred Tax Assets, Net, Current | 13,316 us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent | 11,062 us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent |  |
Prepaid Expense and Other Assets, Current | 33,037 us-gaap_PrepaidExpenseAndOtherAssetsCurrent | 37,699 us-gaap_PrepaidExpenseAndOtherAssetsCurrent |  |
Total current assets | 1,982,489 us-gaap_AssetsCurrent | 2,035,219 us-gaap_AssetsCurrent |  |
Property, Plant and Equipment, Net | 944,485 us-gaap_PropertyPlantAndEquipmentNet | 950,388 us-gaap_PropertyPlantAndEquipmentNet |  |
Goodwill | 847,672 us-gaap_Goodwill | 830,377 us-gaap_Goodwill |  |
Indefinite-Lived Franchise Rights | 305,750 us-gaap_IndefiniteLivedFranchiseRights | 303,947 us-gaap_IndefiniteLivedFranchiseRights |  |
Investment in Subsidiaries | 0 gpi_InvestmentinSubsidiaries | 0 gpi_InvestmentinSubsidiaries |  |
Other Assets, Noncurrent | 18,071 us-gaap_OtherAssetsNoncurrent | 21,561 us-gaap_OtherAssetsNoncurrent |  |
Total assets | 4,098,467 us-gaap_Assets | 4,141,492 us-gaap_Assets |  |
Floorplan notes payable - credit facility | 1,138,495 gpi_FloorplanNotesPayableCreditFacilityGross | 1,143,246 gpi_FloorplanNotesPayableCreditFacilityGross |  |
Offset account related to floorplan notes payable - credit facility | (79,795)gpi_FloorplanOffset | (39,616)gpi_FloorplanOffset |  |
Floorplan notes payable - manufacturer affiliates | 290,038 gpi_FloorplanNotesPayableManufacturerAffiliates | 307,656 gpi_FloorplanNotesPayableManufacturerAffiliates |  |
FMCC Offset | (21,000)gpi_FMCCOffset | (22,500)gpi_FMCCOffset |  |
Long-term Debt and Capital Lease Obligations, Current | 69,275 us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent | 72,630 us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent |  |
Accounts Payable, Current | 250,526 us-gaap_AccountsPayableCurrent | 288,320 us-gaap_AccountsPayableCurrent |  |
Intercompany accounts payable current | 0 gpi_Intercompanyaccountspayablecurrent | 0 gpi_Intercompanyaccountspayablecurrent |  |
Accrued Liabilities, Current | 169,567 us-gaap_AccruedLiabilitiesCurrent | 172,463 us-gaap_AccruedLiabilitiesCurrent |  |
Total current liabilities | 1,817,106 us-gaap_LiabilitiesCurrent | 1,922,199 us-gaap_LiabilitiesCurrent |  |
LONG-TERM DEBT, net of current maturities | 1,077,964 us-gaap_LongTermDebtAndCapitalLeaseObligations | 1,008,837 us-gaap_LongTermDebtAndCapitalLeaseObligations |  |
Derivative Liability, Noncurrent | 33,793 us-gaap_DerivativeLiabilitiesNoncurrent | 25,311 us-gaap_DerivativeLiabilitiesNoncurrent |  |
Deferred income taxes and other liabilities | 209,777 gpi_Deferredincometaxesandotherliabilities | 207,135 gpi_Deferredincometaxesandotherliabilities |  |
Stockholders' Equity Attributable to Parent | 959,827 us-gaap_StockholdersEquity | 978,010 us-gaap_StockholdersEquity |  |
Intercompany note receivable | 0 gpi_Intercompanynotereceivable | 0 gpi_Intercompanynotereceivable |  |
Stockholders' Equity Attributable to Parent Excluding Intercompany Receivables | 959,827 gpi_StockholdersEquityAttributabletoParentExcludingIntercompanyReceivables | 978,010 gpi_StockholdersEquityAttributabletoParentExcludingIntercompanyReceivables |  |
Total liabilities and stockholders’ equity | 4,098,467 us-gaap_LiabilitiesAndStockholdersEquity | 4,141,492 us-gaap_LiabilitiesAndStockholdersEquity |  |
Parent Company [Member] |  |  |  |
Cash and Cash Equivalents, at Carrying Value | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember
Contracts In Transit And Vehicle Receivables Net | 0 gpi_ContractsInTransitAndVehicleReceivablesNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 0 gpi_ContractsInTransitAndVehicleReceivablesNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Accounts, Notes, Loans and Financing Receivable, Net, Current | 0 us-gaap_AccountsNotesAndLoansReceivableNetCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 0 us-gaap_AccountsNotesAndLoansReceivableNetCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Intercompany accounts receivable current | 0 gpi_Intercompanyaccountsreceivablecurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 0 gpi_Intercompanyaccountsreceivablecurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Inventories, net | 0 us-gaap_InventoryNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 0 us-gaap_InventoryNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Deferred Tax Assets, Net, Current | 240 us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 196 us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Prepaid Expense and Other Assets, Current | 743 us-gaap_PrepaidExpenseAndOtherAssetsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 590 us-gaap_PrepaidExpenseAndOtherAssetsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Total current assets | 983 us-gaap_AssetsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 786 us-gaap_AssetsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Property, Plant and Equipment, Net | 0 us-gaap_PropertyPlantAndEquipmentNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 0 us-gaap_PropertyPlantAndEquipmentNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Goodwill | 0 us-gaap_Goodwill / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 0 us-gaap_Goodwill / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Indefinite-Lived Franchise Rights | 0 us-gaap_IndefiniteLivedFranchiseRights / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 0 us-gaap_IndefiniteLivedFranchiseRights / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Investment in Subsidiaries | 2,039,365 gpi_InvestmentinSubsidiaries / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 1,964,442 gpi_InvestmentinSubsidiaries / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Other Assets, Noncurrent | 0 us-gaap_OtherAssetsNoncurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 0 us-gaap_OtherAssetsNoncurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Total assets | 2,040,348 us-gaap_Assets / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 1,965,228 us-gaap_Assets / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Floorplan notes payable - credit facility | 0 gpi_FloorplanNotesPayableCreditFacilityGross / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 0 gpi_FloorplanNotesPayableCreditFacilityGross / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Offset account related to floorplan notes payable - credit facility | 0 gpi_FloorplanOffset / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 0 gpi_FloorplanOffset / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Floorplan notes payable - manufacturer affiliates | 0 gpi_FloorplanNotesPayableManufacturerAffiliates / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 0 gpi_FloorplanNotesPayableManufacturerAffiliates / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
FMCC Offset | 0 gpi_FMCCOffset / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 0 gpi_FMCCOffset / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Long-term Debt and Capital Lease Obligations, Current | 0 us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 0 us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Accounts Payable, Current | 0 us-gaap_AccountsPayableCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 0 us-gaap_AccountsPayableCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Intercompany accounts payable current | 299,275 gpi_Intercompanyaccountspayablecurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 295,421 gpi_Intercompanyaccountspayablecurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Accrued Liabilities, Current | 0 us-gaap_AccruedLiabilitiesCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 0 us-gaap_AccruedLiabilitiesCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Total current liabilities | 299,275 us-gaap_LiabilitiesCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 295,421 us-gaap_LiabilitiesCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
LONG-TERM DEBT, net of current maturities | 664,120 us-gaap_LongTermDebtAndCapitalLeaseObligations / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 609,812 us-gaap_LongTermDebtAndCapitalLeaseObligations / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Derivative Liability, Noncurrent | 0 us-gaap_DerivativeLiabilitiesNoncurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 0 us-gaap_DerivativeLiabilitiesNoncurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Deferred income taxes and other liabilities | 0 gpi_Deferredincometaxesandotherliabilities / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 0 gpi_Deferredincometaxesandotherliabilities / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Stockholders' Equity Attributable to Parent | 1,076,953 us-gaap_StockholdersEquity / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 1,059,995 us-gaap_StockholdersEquity / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Intercompany note receivable | 0 gpi_Intercompanynotereceivable / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 0 gpi_Intercompanynotereceivable / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Stockholders' Equity Attributable to Parent Excluding Intercompany Receivables | 1,076,953 gpi_StockholdersEquityAttributabletoParentExcludingIntercompanyReceivables / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 1,059,995 gpi_StockholdersEquityAttributabletoParentExcludingIntercompanyReceivables / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Total liabilities and stockholders’ equity | 2,040,348 us-gaap_LiabilitiesAndStockholdersEquity / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember | 1,965,228 us-gaap_LiabilitiesAndStockholdersEquity / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ParentCompanyMember |  |
Guarantor Subsidiaries [Member] |  |  |  |
Cash and Cash Equivalents, at Carrying Value | 4,449 us-gaap_CashAndCashEquivalentsAtCarryingValue / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 25,379 us-gaap_CashAndCashEquivalentsAtCarryingValue / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 3,441 us-gaap_CashAndCashEquivalentsAtCarryingValue / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 4,306 us-gaap_CashAndCashEquivalentsAtCarryingValue / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember
Contracts In Transit And Vehicle Receivables Net | 196,674 gpi_ContractsInTransitAndVehicleReceivablesNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 218,361 gpi_ContractsInTransitAndVehicleReceivablesNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Accounts, Notes, Loans and Financing Receivable, Net, Current | 105,570 us-gaap_AccountsNotesAndLoansReceivableNetCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 117,427 us-gaap_AccountsNotesAndLoansReceivableNetCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Intercompany accounts receivable current | 257,147 gpi_Intercompanyaccountsreceivablecurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 276,217 gpi_Intercompanyaccountsreceivablecurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Inventories, net | 1,346,561 us-gaap_InventoryNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 1,342,022 us-gaap_InventoryNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Deferred Tax Assets, Net, Current | 13,076 us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 10,866 us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Prepaid Expense and Other Assets, Current | 17,297 us-gaap_PrepaidExpenseAndOtherAssetsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 22,039 us-gaap_PrepaidExpenseAndOtherAssetsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Total current assets | 1,940,774 us-gaap_AssetsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 2,012,311 us-gaap_AssetsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Property, Plant and Equipment, Net | 835,370 us-gaap_PropertyPlantAndEquipmentNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 839,063 us-gaap_PropertyPlantAndEquipmentNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Goodwill | 734,367 us-gaap_Goodwill / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 700,642 us-gaap_Goodwill / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Indefinite-Lived Franchise Rights | 266,345 us-gaap_IndefiniteLivedFranchiseRights / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 257,502 us-gaap_IndefiniteLivedFranchiseRights / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Investment in Subsidiaries | 0 gpi_InvestmentinSubsidiaries / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 0 gpi_InvestmentinSubsidiaries / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Other Assets, Noncurrent | 9,277 us-gaap_OtherAssetsNoncurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 10,120 us-gaap_OtherAssetsNoncurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Total assets | 3,786,133 us-gaap_Assets / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 3,819,638 us-gaap_Assets / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Floorplan notes payable - credit facility | 1,133,884 gpi_FloorplanNotesPayableCreditFacilityGross / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 1,137,743 gpi_FloorplanNotesPayableCreditFacilityGross / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Offset account related to floorplan notes payable - credit facility | (79,795)gpi_FloorplanOffset / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | (39,616)gpi_FloorplanOffset / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Floorplan notes payable - manufacturer affiliates | 195,038 gpi_FloorplanNotesPayableManufacturerAffiliates / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 207,329 gpi_FloorplanNotesPayableManufacturerAffiliates / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
FMCC Offset | (21,000)gpi_FMCCOffset / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | (22,500)gpi_FMCCOffset / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Long-term Debt and Capital Lease Obligations, Current | 56,439 us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 61,185 us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Accounts Payable, Current | 139,261 us-gaap_AccountsPayableCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 176,143 us-gaap_AccountsPayableCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Intercompany accounts payable current | 0 gpi_Intercompanyaccountspayablecurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 0 gpi_Intercompanyaccountspayablecurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Accrued Liabilities, Current | 146,999 us-gaap_AccruedLiabilitiesCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 149,700 us-gaap_AccruedLiabilitiesCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Total current liabilities | 1,570,826 us-gaap_LiabilitiesCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 1,669,984 us-gaap_LiabilitiesCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
LONG-TERM DEBT, net of current maturities | 347,809 us-gaap_LongTermDebtAndCapitalLeaseObligations / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 347,202 us-gaap_LongTermDebtAndCapitalLeaseObligations / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Derivative Liability, Noncurrent | 33,793 us-gaap_DerivativeLiabilitiesNoncurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 25,311 us-gaap_DerivativeLiabilitiesNoncurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Deferred income taxes and other liabilities | 197,710 gpi_Deferredincometaxesandotherliabilities / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 193,077 gpi_Deferredincometaxesandotherliabilities / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Stockholders' Equity Attributable to Parent | 1,935,270 us-gaap_StockholdersEquity / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 1,879,485 us-gaap_StockholdersEquity / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Intercompany note receivable | (299,275)gpi_Intercompanynotereceivable / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | (295,421)gpi_Intercompanynotereceivable / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Stockholders' Equity Attributable to Parent Excluding Intercompany Receivables | 1,635,995 gpi_StockholdersEquityAttributabletoParentExcludingIntercompanyReceivables / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 1,584,064 gpi_StockholdersEquityAttributabletoParentExcludingIntercompanyReceivables / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Total liabilities and stockholders’ equity | 3,786,133 us-gaap_LiabilitiesAndStockholdersEquity / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember | 3,819,638 us-gaap_LiabilitiesAndStockholdersEquity / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_GuarantorSubsidiariesMember |  |
Non-Guarantor Subsidiaries [Member] |  |  |  |
Cash and Cash Equivalents, at Carrying Value | 21,830 us-gaap_CashAndCashEquivalentsAtCarryingValue / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 15,596 us-gaap_CashAndCashEquivalentsAtCarryingValue / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 14,246 us-gaap_CashAndCashEquivalentsAtCarryingValue / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 15,909 us-gaap_CashAndCashEquivalentsAtCarryingValue / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember
Contracts In Transit And Vehicle Receivables Net | 28,374 gpi_ContractsInTransitAndVehicleReceivablesNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 19,087 gpi_ContractsInTransitAndVehicleReceivablesNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Accounts, Notes, Loans and Financing Receivable, Net, Current | 31,803 us-gaap_AccountsNotesAndLoansReceivableNetCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 33,903 us-gaap_AccountsNotesAndLoansReceivableNetCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Intercompany accounts receivable current | 0 gpi_Intercompanyaccountsreceivablecurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 gpi_Intercompanyaccountsreceivablecurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Inventories, net | 200,875 us-gaap_InventoryNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 214,683 us-gaap_InventoryNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Deferred Tax Assets, Net, Current | 0 us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Prepaid Expense and Other Assets, Current | 14,997 us-gaap_PrepaidExpenseAndOtherAssetsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 15,070 us-gaap_PrepaidExpenseAndOtherAssetsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Total current assets | 297,879 us-gaap_AssetsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 298,339 us-gaap_AssetsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Property, Plant and Equipment, Net | 109,115 us-gaap_PropertyPlantAndEquipmentNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 111,325 us-gaap_PropertyPlantAndEquipmentNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Goodwill | 113,305 us-gaap_Goodwill / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 129,735 us-gaap_Goodwill / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Indefinite-Lived Franchise Rights | 39,405 us-gaap_IndefiniteLivedFranchiseRights / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 46,445 us-gaap_IndefiniteLivedFranchiseRights / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Investment in Subsidiaries | 0 gpi_InvestmentinSubsidiaries / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 gpi_InvestmentinSubsidiaries / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Other Assets, Noncurrent | 8,794 us-gaap_OtherAssetsNoncurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 11,441 us-gaap_OtherAssetsNoncurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Total assets | 568,498 us-gaap_Assets / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 597,285 us-gaap_Assets / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Floorplan notes payable - credit facility | 4,611 gpi_FloorplanNotesPayableCreditFacilityGross / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 5,503 gpi_FloorplanNotesPayableCreditFacilityGross / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Offset account related to floorplan notes payable - credit facility | 0 gpi_FloorplanOffset / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 gpi_FloorplanOffset / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Floorplan notes payable - manufacturer affiliates | 95,000 gpi_FloorplanNotesPayableManufacturerAffiliates / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 100,327 gpi_FloorplanNotesPayableManufacturerAffiliates / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
FMCC Offset | 0 gpi_FMCCOffset / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 gpi_FMCCOffset / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Long-term Debt and Capital Lease Obligations, Current | 12,836 us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 11,445 us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Accounts Payable, Current | 111,265 us-gaap_AccountsPayableCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 112,177 us-gaap_AccountsPayableCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Intercompany accounts payable current | 257,147 gpi_Intercompanyaccountspayablecurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 276,217 gpi_Intercompanyaccountspayablecurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Accrued Liabilities, Current | 22,568 us-gaap_AccruedLiabilitiesCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 22,763 us-gaap_AccruedLiabilitiesCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Total current liabilities | 503,427 us-gaap_LiabilitiesCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 528,432 us-gaap_LiabilitiesCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
LONG-TERM DEBT, net of current maturities | 66,035 us-gaap_LongTermDebtAndCapitalLeaseObligations / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 51,823 us-gaap_LongTermDebtAndCapitalLeaseObligations / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Derivative Liability, Noncurrent | 0 us-gaap_DerivativeLiabilitiesNoncurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 us-gaap_DerivativeLiabilitiesNoncurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Deferred income taxes and other liabilities | 12,067 gpi_Deferredincometaxesandotherliabilities / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 14,058 gpi_Deferredincometaxesandotherliabilities / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Stockholders' Equity Attributable to Parent | (13,031)us-gaap_StockholdersEquity / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 2,972 us-gaap_StockholdersEquity / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Intercompany note receivable | 0 gpi_Intercompanynotereceivable / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 0 gpi_Intercompanynotereceivable / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Stockholders' Equity Attributable to Parent Excluding Intercompany Receivables | (13,031)gpi_StockholdersEquityAttributabletoParentExcludingIntercompanyReceivables / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 2,972 gpi_StockholdersEquityAttributabletoParentExcludingIntercompanyReceivables / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Total liabilities and stockholders’ equity | 568,498 us-gaap_LiabilitiesAndStockholdersEquity / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember | 597,285 us-gaap_LiabilitiesAndStockholdersEquity / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_NonGuarantorSubsidiariesMember |  |
Consolidation, Eliminations [Member] |  |  |  |
Cash and Cash Equivalents, at Carrying Value | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_CashAndCashEquivalentsAtCarryingValue / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Contracts In Transit And Vehicle Receivables Net | 0 gpi_ContractsInTransitAndVehicleReceivablesNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | 0 gpi_ContractsInTransitAndVehicleReceivablesNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Accounts, Notes, Loans and Financing Receivable, Net, Current | 0 us-gaap_AccountsNotesAndLoansReceivableNetCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_AccountsNotesAndLoansReceivableNetCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Intercompany accounts receivable current | (257,147)gpi_Intercompanyaccountsreceivablecurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | (276,217)gpi_Intercompanyaccountsreceivablecurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Inventories, net | 0 us-gaap_InventoryNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_InventoryNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Deferred Tax Assets, Net, Current | 0 us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_DeferredTaxAssetsLiabilitiesNetCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Prepaid Expense and Other Assets, Current | 0 us-gaap_PrepaidExpenseAndOtherAssetsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_PrepaidExpenseAndOtherAssetsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Total current assets | (257,147)us-gaap_AssetsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | (276,217)us-gaap_AssetsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Property, Plant and Equipment, Net | 0 us-gaap_PropertyPlantAndEquipmentNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_PropertyPlantAndEquipmentNet / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Goodwill | 0 us-gaap_Goodwill / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_Goodwill / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Indefinite-Lived Franchise Rights | 0 us-gaap_IndefiniteLivedFranchiseRights / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_IndefiniteLivedFranchiseRights / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Investment in Subsidiaries | (2,039,365)gpi_InvestmentinSubsidiaries / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | (1,964,442)gpi_InvestmentinSubsidiaries / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Other Assets, Noncurrent | 0 us-gaap_OtherAssetsNoncurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_OtherAssetsNoncurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Total assets | (2,296,512)us-gaap_Assets / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | (2,240,659)us-gaap_Assets / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Floorplan notes payable - credit facility | 0 gpi_FloorplanNotesPayableCreditFacilityGross / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | 0 gpi_FloorplanNotesPayableCreditFacilityGross / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Offset account related to floorplan notes payable - credit facility | 0 gpi_FloorplanOffset / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | 0 gpi_FloorplanOffset / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Floorplan notes payable - manufacturer affiliates | 0 gpi_FloorplanNotesPayableManufacturerAffiliates / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | 0 gpi_FloorplanNotesPayableManufacturerAffiliates / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
FMCC Offset | 0 gpi_FMCCOffset / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | 0 gpi_FMCCOffset / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Long-term Debt and Capital Lease Obligations, Current | 0 us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_LongTermDebtAndCapitalLeaseObligationsCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Accounts Payable, Current | 0 us-gaap_AccountsPayableCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_AccountsPayableCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Intercompany accounts payable current | (556,422)gpi_Intercompanyaccountspayablecurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | (571,638)gpi_Intercompanyaccountspayablecurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Accrued Liabilities, Current | 0 us-gaap_AccruedLiabilitiesCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_AccruedLiabilitiesCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Total current liabilities | (556,422)us-gaap_LiabilitiesCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | (571,638)us-gaap_LiabilitiesCurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
LONG-TERM DEBT, net of current maturities | 0 us-gaap_LongTermDebtAndCapitalLeaseObligations / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_LongTermDebtAndCapitalLeaseObligations / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Derivative Liability, Noncurrent | 0 us-gaap_DerivativeLiabilitiesNoncurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | 0 us-gaap_DerivativeLiabilitiesNoncurrent / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Deferred income taxes and other liabilities | 0 gpi_Deferredincometaxesandotherliabilities / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | 0 gpi_Deferredincometaxesandotherliabilities / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Stockholders' Equity Attributable to Parent | (2,039,365)us-gaap_StockholdersEquity / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | (1,964,442)us-gaap_StockholdersEquity / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Intercompany note receivable | 299,275 gpi_Intercompanynotereceivable / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | 295,421 gpi_Intercompanynotereceivable / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Stockholders' Equity Attributable to Parent Excluding Intercompany Receivables | (1,740,090)gpi_StockholdersEquityAttributabletoParentExcludingIntercompanyReceivables / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | (1,669,021)gpi_StockholdersEquityAttributabletoParentExcludingIntercompanyReceivables / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |
Total liabilities and stockholders’ equity | $ (2,296,512)us-gaap_LiabilitiesAndStockholdersEquity / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember | $ (2,240,659)us-gaap_LiabilitiesAndStockholdersEquity / gpi_CondensedconsolidatedfinancialinformationentitiesAxis = us-gaap_ConsolidationEliminationsMember |  |

X
- Definition Amounts due from financing institutions on retail finance contracts from vehicle sales and dealer incentives due from manufacturers. Also, included are amounts receivable from vehicle wholesale sales. + References No definition available. + Details
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- 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
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- Definition Stockholders' Equity Attributable to Parent Excluding Intercompany Receivables + References No definition available. + Details
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- Definition The aggregate of amounts due from customers or clients, within one year of the balance sheet date (or one operating cycle, if longer), for goods or services that have been delivered or sold in the normal course of business and an amount representing an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date within one year of the balance sheet, reduced to their estimated net realizable fair value by an allowance established by the entity of the amount it deems uncertain of collection and net of any write-downs taken for collection uncertainty on the part of the holder, respectively. + 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 210.5-02.3,4) -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 3, 4 -Article 5 + Details
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- Definition Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19 -Subparagraph a -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 210.5-02.19(a)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 20 -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 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + 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 210.5-02.18) -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 210 -SubTopic 10 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 03 -Paragraph 12 -Article 7 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 18 -Article 5 + Details
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