Document and Entity Information Statement [Table] Statement [Line Items] Entity Registrant Name Entity Central Index Key Document Type Document Period End Date Amendment Flag Current Fiscal Year End Date Entity Current Reporting Status Entity Filer Category Entity Common Stock, Shares Outstanding Document Fiscal Year Focus Document Fiscal Period Focus Condensed Consolidated Balance Sheets Assets [Abstract] Assets Assets, Current [Abstract] Current assets: Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at the end of the period Cash and cash equivalents at the beginning of the period Cash and cash equivalents Accounts Receivable, Net, Current Accounts receivable (less allowance for doubtful accounts of $1,210 and $1,312 as of March 31, 2015, and December 31, 2014, respectively) Inventory, Net Inventories Total inventories Other Assets, Current Other current assets Assets, Current Total current assets Property, Plant and Equipment, Net Property and equipment, net Intangible Assets, Net (Including Goodwill) Goodwill and intangible assets, net Other Assets, Noncurrent Other noncurrent assets Assets Total assets Liabilities and Equity [Abstract] Liabilities and Shareholders' Equity Liabilities, Current [Abstract] Current liabilities: Accounts Payable, Current Accounts payable Represents the aggregate carrying amount, as of the balance sheet date, of current liabilities related to the leases with the principal landlord and a related party, including liabilities (i) to recognize rent payable in less than one year, (ii) to recognize the effect of landlord incentives equally over the lease term, (iii) to recognize that certain sites covered by the lease did not qualify for operating lease treatment in a sale/leaseback because more than a minor portion is subleased, (iv) to recognize the deferred gain on the sale portion of sale/leaseback transactions, and (v) to recognize rent expense evenly over the lease term. Lease Liabilities, Current Current HPT Leases liabilities Total Current HPT Leases liabilities Other Liabilities, Current Other current liabilities Liabilities, Current Total current liabilities Aggregate carrying amount, as of the balance sheet date, of noncurrent liabilities related to the leases with our principal landlord and a related party, including liabilities (i) to recognize lease expense evenly over the lease term, (ii) to recognize the effect of landlord incentives equally over the lease term, (iii) to recognize that certain sites covered by the lease did not qualify for operating lease treatment in a sale/leaseback because more than a minor portion is subleased, (iv) to recognize the deferred gain on the sale portion of sale/leaseback transactions, and (v) the obligation to pay deferred rent. Lease Liabilities, Noncurrent Noncurrent HPT Leases liabilities Total Noncurrent HPT Lease liabilities Long-term Debt Long term debt Other Liabilities, Noncurrent Other noncurrent liabilities Liabilities Total liabilities Stockholders' Equity Attributable to Parent [Abstract] Shareholders' equity: Common Stock, Value, Issued Common shares, no par value, 39,158,666 shares authorized as of March 31, 2015 and December 31, 2014, 38,434,136 shares issued and 38,344,608 shares outstanding as of March 31, 2015, and 38,425,886 shares issued and 38,336,358 shares outstanding as of December 31, 2014 Accumulated Other Comprehensive Income (Loss), Net of Tax Balance at the end of the period Balance at the beginning of the period Accumulated other comprehensive income Retained Earnings (Accumulated Deficit) Accumulated deficit Treasury Stock, Value Treasury shares, 89,528 shares as of March 31, 2015 and December 31, 2014 Stockholders' Equity Attributable to Parent Total shareholders' equity Liabilities and Equity Total liabilities and shareholders' equity Allowance for Doubtful Accounts Receivable, Current Accounts receivable, allowance for doubtful accounts (in dollars) Common Stock, No Par Value Common shares, par value (in dollars per share) Common Stock, Shares Authorized Common shares, shares authorized Common Stock, Shares, Issued Common shares, shares issued Common Stock, Shares, Outstanding Common shares, shares outstanding Treasury Stock, Shares Condensed Consolidated Statements of Income and Comprehensive Income Revenues [Abstract] Revenues: Oil and Gas Sales Revenue Fuel This element represents the revenue from nonfuel products and services such as truck repair and maintenance services, full service restaurants, quick service restaurants, travel and convenience stores and other driver amenities. Nonfuel Revenue Nonfuel Franchise Revenue Rent and royalties from franchisees Revenues Total revenues Cost of Revenue [Abstract] Cost of goods sold (excluding depreciation): Cost of Purchased Oil and Gas Fuel This element represents the costs related to the sale of nonfuel products and services such as truck repair and maintenance services, full service restaurants, quick service restaurants, travel and convenience stores and other driver amenities and excludes depreciation. Costs of Goods and Services Sold Nonfuel Nonfuel The aggregate cost of goods produced and sold and services rendered, excluding depreciation, during the reporting period. Cost of Revenue Excluding Depreciation Total cost of goods sold Operating Expenses [Abstract] Operating expenses: This element principally represents costs incurred in operating the company's locations, consisting primarily of labor, maintenance, supplies, utilities, property taxes, inventory losses and credit card transaction fees. Site Level Operating Expense Site level operating Selling, General and Administrative Expense Selling, general & administrative Operating Leases, Rent Expense Real estate rent Total real estate rent expense Depreciation, Depletion and Amortization, Nonproduction Depreciation and amortization expense Depreciation and amortization Operating Expenses Total operating expenses Operating Income (Loss) Income from operations Business Combination, Acquisition Related Costs Acquisition costs Acquisition costs Interest Expense Interest expense, net Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income before income taxes and income from equity investees Income Tax Expense (Benefit) Provision for income taxes Income (Loss) from Equity Method Investments Income from equity investees Income (loss ) recognized related to equity investments Net Income (Loss) Attributable to Parent Net income Net income Net income, as reported Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive (loss) income, net of tax: Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent Foreign currency translation adjustment, net of tax of $(194) Foreign currency translation loss, net of taxes of $(194) and $(90), respectively Amount of equity interest in investee's unrealized gains (losses), which is attributable to the parent entity. Other Comprehensive Income Unrealized Gain (Loss) on Investments Equity Interest Portion Attributable to Parent Equity interest in investee's unrealized gain on investments Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent Other comprehensive income (loss), net of tax Other comprehensive (loss) income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income Earnings Per Share Net income per common share: Earnings Per Share, Basic and Diluted Basic and diluted (in dollars per share) Basic and diluted net income per share Other Comprehensive Income (Loss), Foreign Currency Translation Gain (Loss) Arising During Period, Tax Foreign currency translation adjustment, taxes Condensed Consolidated Statements of Cash Flows Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Cash flows from operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: This element represents the rent expensed but not paid in cash. Noncash Rent Expense Noncash rent expense Deferred Income Tax Expense (Benefit) Deferred income tax provision Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities, net of effects of business acquisitions: Increase (Decrease) in Accounts Receivable Accounts receivable Increase (Decrease) in Inventories Inventories Increase (Decrease) in Other Operating Assets Other assets Increase (Decrease) in Accounts Payable and Accrued Liabilities Accounts payable and other liabilities Other Noncash Income (Expense) Other, net Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net cash provided by operating activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Cash flows from investing activities: Proceeds from Sale of Productive Assets Proceeds from asset sales Payments to Acquire Property, Plant, and Equipment Capital expenditures Purchase price paid Payments to Acquire Businesses, Net of Cash Acquired Acquisitions of businesses, net of cash acquired Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net cash used in investing activities Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Cash flows from financing activities: Sale Leaseback Transaction, Gross Proceeds Proceeds from sale-leaseback transactions with HPT Sale Leaseback Transaction, Annual Rental Payments Sale-leaseback financing obligation payments Less sale-leaseback financing obligation amortization Proceeds from (Payments for) Other Financing Activities Other Net Cash Provided by (Used in) Financing Activities, Continuing Operations Net cash used in financing activities Effect of Exchange Rate on Cash and Cash Equivalents, Continuing Operations Effect of exchange rate changes on cash Net Cash Provided by (Used in) Continuing Operations Net decrease in cash and cash equivalents Supplemental Cash Flow Information [Abstract] Supplemental disclosure of cash flow information: Interest Paid Interest paid (including rent classified as interest and net of capitalized interest) Income Taxes Paid, Net Income taxes paid (net of refunds) Basis of Presentation, Business Description and Organization Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Basis of Presentation, Business Description and Organization Earnings Per Share [Text Block] Earnings Per Share Acquisitions Business Combination Disclosure [Text Block] Acquisitions Accumulated Other Comprehensive Income Shareholders' Equity and Share-based Payments [Text Block] Accumulated Other Comprehensive Income Related Party Transactions Related Party Transactions Disclosure [Text Block] Related Party Transactions Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Commitments and Contingencies Inventories Inventory Disclosure [Text Block] Inventories Basis of Accounting, Policy [Policy Text Block] Basis of Presentation Reclassification, Policy [Policy Text Block] Reclassifications Fair Value Measurement, Policy [Policy Text Block] Fair Value Measurement New Accounting Pronouncements, Policy [Policy Text Block] Recently Issued Accounting Pronouncements Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of reconciliation from net income to the net income available to common shareholders and the related earnings per share Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block] Summary of the amounts assigned, based on their fair values, to the assets acquired and liabilities assumed in the business combinations Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Schedule of accumulated other comprehensive income Tabular reconciliation of amounts paid and rent expense incurred under related party leases to rent expense reflected in real estate rent caption of statement of income and comprehensive income. Schedule of Rent Expense and Related Party Leases [Table Text Block] Schedule of various amounts related to the HPT Leases and other lessors which are reflected in real estate rent expense in consolidated statements of income and comprehensive income Tabular disclosure of lease liabilities to a related party that are included in the entity's consolidated balance sheets. Schedule of Lease Liabilities [Table Text Block] Schedule of various amounts related to the HPT Leases Schedule of Inventory, Current [Table Text Block] Schedule of inventories Summary of Significant Accounting Policies Represents the details pertaining to the operations of the entity. Schedule of Operations [Table] Information by the the different types of brand. Brand Type [Axis] Represents the different types of brand. Brand Type [Domain] Brand Type [Domain] Represents the Travel Centers of America or TA brand name, in which the entity operates. Travel Centers Of America Brand [Member] Travel Centers of America brand Represents the Petro Stopping Centers, or Petro brand name, in which the entity operates. Petro Stopping Centers Brand [Member] Petro Stopping Center brand Segments [Axis] Segment [Domain] Segments [Domain] Represents information pertaining to travel centers owned or operated by the entity. Travel Centers [Member] Travel centers Represents information pertaining to the geographically diverse convenience stores operating segment. Convenience Store [Member] Gasoline stations/convenience stores Franchisor Disclosure [Axis] Franchisor Disclosure [Domain] Franchisor Disclosure [Domain] Franchised Units [Member] Franchised sites Units that are subleased by the franchisees from the entity. Franchise Units Subleased [Member] Franchisee subleased sites Related Party [Axis] Related Party [Domain] Related Party [Domain] Represents information pertaining to Hospitality Properties Trust, a major shareholder of the entity. Hospitality Properties Trust [Member] HPT 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. Summary of Significant Accounting Policies [Line Items] Basis of presentation, business description and organization Area of Real Estate Property Area of property Number of Stores Number of locations Number of States in which Entity Operates Number of states in which the entity operates Number of Real Estate Properties Number of locations owned The number of units (items of property) under operating lease and management arrangements. Property Under Operating Lease And Management, Number of Units Number of sites under leases or management Property Subject to or Available for Operating Lease, Number of Units Number of sites under leases Number of properties under lease The number of real estate properties owned or leased from a third party as of the balance sheet date. Number of Real Estate Properties Owned or Leased from Third Party Number of locations owned or leased Represents the information pertaining to properties owned in minority interest and operated under joint venture. Number of Properties, Operated Under Joint Venture Number of properties operated under joint venture Debt Instrument, Face Amount Aggregate principal amount issued Debt Instrument, Interest Rate, Stated Percentage Interest rate (as a percent) Long-term Debt, Fair Value Fair value of debt instrument Number of Operating Segments Number of operating segments Number of Reportable Segments Number of reportable segments Earnings Per Share, Basic and Diluted [Abstract] Computation of Basic and Diluted Earnings Per Share Undistributed Earnings Allocated to Participating Securities Less: net income attributable to participating securities Net Income (Loss) Available to Common Stockholders, Basic Net income available to common shareholders Weighted Average Number of Shares Outstanding, Basic and Diluted Weighted average common shares Incremental Common Shares Attributable to Participating Nonvested Shares with Non-forfeitable Dividend Rights Number of unvested participating shares Schedule of Business Acquisitions, by Acquisition [Table] Business Acquisition [Axis] Business Acquisition Acquiree [Domain] Business Acquisition, Acquiree [Domain] Represents the information Acquisition of one travel centers, 26 gasoline stations/convenience stores and a quick service restaurant.. One Travel Centers Twenty Six Gasoline Stations Convenience Stores And Quick Service Restaurants [Member] One travel centers, twenty-six gasoline stations/convenience stores Acquisition of one travel centers, 52 gasoline stations/convenience stores and a quick service restaurant. One Travel Centers Fifty Two Gasoline Stations Convenience Stores And Quick Service Restaurants [Member] One travel centers, fifty-two gasoline stations/convenience stores Acquisition of a parcel of vacant land and a travel center that we formerly leased. Parcel Of Land And Travel Center Formerly Leased [Member] A parcel vacant of land and a travel center formerly leased Business Acquisition [Line Items] Acquisitions Number of Businesses Acquired Number of properties acquired The number of business being acquired under agreement. Number Of Business To Be Acquired Number of property to be acquired under the agreement The purchase price per agreement for acquisitions agreed upon during the period. Purchase Price To Acquire Businesses, Agreed Purchase price per agreement Payments to Acquire Businesses, Gross Purchase price paid Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net [Abstract] Summary of the amounts assigned, based on their fair values, to the assets acquired and liabilities assumed in the business combinations Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory Inventories Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment Property and equipment The amount of goodwill recognized as of the acquisition date. Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Goodwill Goodwill Amount of liabilities incurred for goods and services received that are used in the entity's business and related party payables and other liabilities due within one year or within the normal operating cycle, if longer, assumed at the acquisition date. Business Combination Recognized Identifiable Assets Acquired and Liabilities Assumed Current Liabilities Accounts Payable and Other Current Liabilities Other liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Total purchase price Accumulated Other Comprehensive Income (Loss) [Table] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Accumulated Translation Adjustment [Member] Foreign currency translation adjustment Accumulated Net Unrealized Investment Gain Loss [Member] Equity interest in investee's unrealized gain (loss) on investments Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated other comprehensive income (loss) No definition available. Accumulated Other Comprehensive Income. Accumulated Other Comprehensive Income Schedule of Related Party Transactions, by Related Party [Table] Represents the information pertaining to Reit Management and Research LLC. Reit Management And Research L L C [Member] RMR Represents information pertaining to Affiliates Insurance Company. Affiliates Insurance Company [Member] AIC Represents information pertaining to Petro Travel Plaza Holdings, LLC. Petro Travel Plaza Holdings L L C [Member] PTP Represents the name of the contract of operating leases in which the entity is the lessee. Operating Leases of Lessee Contract Name [Axis] The names of the contract of operating leases in which the entity is the lessee. Operating Leases Of Lessee Contract Name [Domain] Operating Leases of Lessee Contract Name [Domain] Represents information pertaining to travel center properties which were leased and is expiring in 2022, historically referred to as TA lease. T A Lease [Member] TA Lease Represents information pertaining to Petro properties which were leased and is expiring in 2024, historically referred to as Petro lease. Petro Lease [Member] Petro Lease Information pertaining to deferred rent payable. Deferred Rent Payable [Axis] Information pertaining to deferred rent payable. Deferred Rent Payable [Domain] Deferred Rent Payable [Domain] Represents the deferred rent payable in December 2022. Deferred Rent Payable In December2022 [Member] Deferred rent obligation payable in December 2022 Represents the deferred rent payable in June 2024. Deferred Rent Payable In June2024 [Member] Deferred rent obligation payable in June 2024 Related Party Transaction [Line Items] Related Party Transactions Represents the number of shares owned by the related party as of the balance sheet date. Related Party Transaction, Number of Shares Owned by Related Party Number of common shares owned Represents the balance held at the close of the period, in number of shares as a percentage of the total shares outstanding. Related Party Transaction, Ownership Percentage of Total Shares Outstanding Common Shares by Related Party Percentage of outstanding common shares owned Represents the number of leases with the related party. Related Party Transaction, Number of Leases with Related Party Number of leases Represents the increase in annual rent payable of the entity as a result of sales of improvements to a related party. Related Party Transaction Increase in Annual Rent Payable Increase to annual rent payable Represents the amount of percentage rent to be waived. Amount of Percentage Rent to be Waived Percentage rent to be waived Represents the percentage rent waived during the period. Percentage Rent to be Waived During the Reporting Period Percentage rent waived Represents the cumulative percentage rent waived. Cumulative Percentage Rent Waived Cumulative percentage rent waived No documentation available. Lease and Rental Expense [Abstract] Summary of details amounts related to the HPT Leases and other leases that are reflected in real estate rent expense in condensed consolidated statements of income and comprehensive income Represents the cash payment for minimum rent under leases. Minimum Rentals Cash payments for rent under the HPT Leases Represents the increase (decrease) in accrued rent payable during the period from lessee-operators based on revenues generated in their operations, generally in excess of a base amount. Related Party Transaction Increase (Decrease) in Accrued Percentage Rent Payable Change in accrued estimated percentage rent Represents the amount of the adjustment to rental expense to measure escalating leasing expense on a straight line basis under the related party transaction during the financial reporting period. Related Party Transaction, Straight Line Rent Adjustments Adjustments to recognize expense on a straight line basis Interest Expense, Lessee, Assets under Capital Lease Less portion of rent payments recognized as interest expense Represents the amortization of deferred tenant improvements allowance. Deferred Tenant Improvements, Allowance Amortization Less deferred tenant improvements allowance amortization Represents the amortization of deferred gain on sale portion of sale/leaseback transactions. Sale Leaseback Transaction, Amortization of Deferred Gain Amortization of deferred gain on sale-leaseback transactions Rental expense incurred for leased assets under the related party transaction during the financial reporting period. Related Party Transaction, Lease and Rental Expense Rent expense related to HPT Leases Represents other rental payments during the period excluding related party. Rental Payments excluding Related Party Rent paid to others Represents the amount of the adjustment to rental expense to measure escalating leasing expense on a straight line basis excluding related party transactions. Straight Line Rent Adjustments Excluding Related Party Adjustments to recognize expense on a straight line basis for other leases Lease Liabilities [Abstract] Summarizes the various amounts related to our HPT Leases that are included in our consolidated balance sheets Lease Liabilities, Current [Abstract] Current HPT Leases liabilities: Accrued Rent, Current Accrued rent Represents the current portion of sale and leaseback obligations. Sale Leaseback Financing Obligation Current Sale-leaseback financing obligation Represents the current portion of straight line rent accrual as of the balance sheet date. Accrued Straight Line Rent Current Straight line rent accrual Represents the current portion of deferred gain on sale/leaseback transactions as of the balance sheet date. Deferred Gain on Sale Leaseback Transactions, Current Deferred gain on sale-leaseback transactions Represents the current portion of deferred tenant improvements allowance as of the balance sheet date. Deferred Tenant Improvements Allowance, Current Deferred tenant improvements allowance Lease Liabilities, Noncurrent [Abstract] Noncurrent HPT Leases liabilities: Deferred rent payments to be made in future years. Deferred Rent Payments Deferred rent obligation Represents the sale and lease back obligations payable after one year or beyond the normal operating cycle, if longer. Sale Leaseback Financing Obligation Noncurrent Sale-leaseback financing obligation Difference between actual rental payments due and rental expense recognized on a straight-line basis. Straight Line Rent Payable Straight line rent accrual Represents the noncurrent portion of deferred gain on sale/leaseback transactions as of the balance sheet date. Deferred Gain on Sale Leaseback Transactions, Noncurrent Deferred gain on sale-leaseback transactions Represents the noncurrent portion of deferred tenant improvements allowance as of the balance sheet date. Deferred Tenant Improvements Allowance, Noncurrent Deferred tenant improvements allowance This element represents the rental expense payable during the period from lessee-operators based on expenses generated in their operations, generally in excess of a base amount. Percentage Rent Expense Annual percentage rent recognized as an expense Represents the amount of improvements to real estate properties made by the entity and purchased by the lessor. Real Estate Improvements, Sold Improvements sold Assets Held-for-sale, Long Lived Improvements included in property and equipment Other Related Party Transactions [Abstract] Other related party transactions Represents the number of real estate properties where leased assets and a liability are recognized in the consolidated balance sheet related to failed sale leaseback accounting because more than a minor portion is subleased to third parties. Related Party Transaction Number of Real Estate Properties Failed Sale Leaseback Financing Number of real estate properties leased to be recognized Represents the number of real estate properties where leased assets and a liability are recognized in the consolidated balance sheet for reasons other than failed sale leaseback accounting. Related Party Transaction, Number of Real Estate Properties Not Qualifying for Operating Lease Treatment Number of real estate properties not qualifying for operating lease treatment Expenses recognized during the period resulting from the business management agreement and the property management agreements with the related party during the period. Related Party Transaction, Business and Property Management Fees Aggregate fees Represents the term of scheduled rent increases since the inception of the lease. Term of Scheduled Rent Increases from the Inception Of The Lease The term of scheduled rent increase from the initial lease term Represents the total amount of leasehold improvements funded by the related party without an increase in rent. Amount Funded by Related Party Entity for Leasehold Improvements Amount funded for leasehold improvements Represents the number of installments in which deferred rent is payable. Number of Installments in which Deferred Rent is Payable Number of installments in which deferred rent is payable Represents the period before which written notice is required to be given for termination of business management agreement. Period before which Written Notice is Required for Termination of Business Management Agreement Period before which written notice is required to be given for termination of business management agreement Multiple use in the calculation of termination fee in the case of termination of business agreement other than for cause, as defined in the agreement. Business Management Agreement Termination Fee Multiple Multiple in calculating termination fee Period over which the base amount to calculate termination fee is determined. Business Management Agreement, Termination Fee, Base Amount Period Period over which base management fee is determined as basis to calculate termination fee Period of transition upon termination of the business management agreement. Business Management Agreement Termination Transition Period Business Management Agreement, Termination, Transition Period Equity Method Investments Equity method investments, carrying value Revenue from Related Parties Management and accounting fee income recognized Due to Affiliate Net payable Loss Contingencies [Table] Loss Contingency Nature [Axis] Loss Contingency Nature [Domain] Loss Contingency, Nature [Domain] Unfavorable Regulatory Action [Member] Environmental Matters Range [Axis] Range [Member] Range [Domain] Maximum [Member] Maximum Loss Contingencies [Line Items] Commitments and contingencies Represents the insurance amount per incident for certain environmental liabilities. Loss Contingency Insurance Limit for Unidentified Liabilities per Incident Insurance per incident for certain environmental liabilities not known at the time of issuance of policies Represents the insurance amount for certain environmental liabilities. Loss Contingency, Insurance Limit for Unidentified Liabilities Insurance for certain environmental liabilities not known at the time of issuance of policies Accrual for Environmental Loss Contingencies [Abstract] Gross liability for environmental matters: Accrual for Environmental Loss Contingencies Total recorded liabilities Loss Contingency, Receivable Less-expected recoveries of future expenditures, included in other noncurrent assets Loss Contingency, Estimate of Possible Loss Net estimated environmental costs to be funded by future operating cash flows Carrying amount as of the balance sheet less valuation reserves and adjustments of nonfuel merchandise. Nonfuel Merchandise, Net of Reserves Nonfuel products Energy Related Inventory, Petroleum Fuel products Long-term Debt, Type [Axis] Longterm Debt Type [Domain] Long-term Debt, Type [Domain] Senior Notes [Member] Senior Notes Represents the 8.25% senior notes due 2028. Senior Notes8.25 Percent [Member] 8.25% Senior Notes due 2028 Represents the 8.00% senior notes due 2029. Senior Notes8.00 Percent [Member] 8.00% Senior Notes due 2029 Represents travel center. Travel Center [Member] Travel center Represents gasoline station/convenience stores. Gasoline Station Convenience Store [Member] Gasoline stations/convenience stores Represents the information pertaining to acquisition of nineteen gasoline and convenience stores. Nineteen Gasoline Stations And Convenience Stores [Member] Nineteen gasoline stations/convenience stores Represents the information pertaining to one travel center and two gasoline stations and convenience stores and a quick service restaurant. One Travel Center And Two Gasoline Stations Convenience Stores [Member] One travel center and two gasoline stations/convenience stores Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent event Related Party Transaction [Axis] Related Party Transaction [Domain] Related Party Transaction [Domain] Business management and shared services pursuant to a business management and shared services agreement. Business Management And Shared Services [Member] Business management and shared services Legal Entity [Axis] Entity [Domain] Entity [Domain]