| Acquisitions, Goodwill and Other Long-Lived Assets (Details) (USD $)In Thousands, except Per Share data, unless otherwise specified
 | 3 Months Ended | 12 Months Ended | 10 Months Ended |  |  |  |  | 
      
        | Dec. 31, 2014 | Sep. 30, 2014 | Jun. 30, 2014 | Mar. 31, 2014 | Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2013 | Feb. 04, 2015 | Nov. 30, 2014 | Feb. 02, 2014 | Mar. 04, 2013 | 
      
        | Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Goodwill, Net | $ 144,412us-gaap_Goodwill |  |  |  | $ 88,496us-gaap_Goodwill |  |  |  | $ 144,412us-gaap_Goodwill | $ 88,496us-gaap_Goodwill |  | $ 88,496us-gaap_Goodwill |  |  |  |  | 
      
        | Payments to Acquire Businesses, Net of Cash Acquired |  |  |  |  |  |  |  |  | 90,172us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired | 45,328us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired | 0us-gaap_PaymentsToAcquireBusinessesNetOfCashAcquired |  |  |  |  |  | 
      
        | Escrow Deposit |  |  |  |  |  |  |  |  |  |  |  |  | 16,500us-gaap_EscrowDeposit |  |  |  | 
      
        | Unrecognized Tax Benefits, Income Tax Penalties Accrued | 170us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued |  |  |  | 277us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued |  |  |  | 170us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued | 277us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued |  | 277us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued |  |  |  |  | 
      
        | Unrecognized Tax Benefits, Interest on Income Taxes Accrued | 414us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued |  |  |  | 299us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued |  |  |  | 414us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued | 299us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued |  | 299us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued |  |  |  |  | 
      
        | Operating Income (Loss) | 25,634us-gaap_OperatingIncomeLoss | 26,906us-gaap_OperatingIncomeLoss | 27,595us-gaap_OperatingIncomeLoss | 16,271us-gaap_OperatingIncomeLoss | 23,203us-gaap_OperatingIncomeLoss | 22,857us-gaap_OperatingIncomeLoss | 22,505us-gaap_OperatingIncomeLoss | 15,790us-gaap_OperatingIncomeLoss | 96,406us-gaap_OperatingIncomeLoss | 84,355us-gaap_OperatingIncomeLoss | 83,532us-gaap_OperatingIncomeLoss |  |  |  |  |  | 
      
        | Net income (loss) | 17,045us-gaap_NetIncomeLoss | 16,744us-gaap_NetIncomeLoss | 17,178us-gaap_NetIncomeLoss | 10,202us-gaap_NetIncomeLoss | 15,584us-gaap_NetIncomeLoss | 14,197us-gaap_NetIncomeLoss | 13,831us-gaap_NetIncomeLoss | 10,855us-gaap_NetIncomeLoss | 61,169us-gaap_NetIncomeLoss | 54,467us-gaap_NetIncomeLoss | 52,668us-gaap_NetIncomeLoss |  |  |  |  |  | 
      
        | Basic (in dollars per share) | $ 0.56us-gaap_EarningsPerShareBasic | $ 0.55us-gaap_EarningsPerShareBasic | $ 0.56us-gaap_EarningsPerShareBasic | $ 0.33us-gaap_EarningsPerShareBasic | $ 0.51us-gaap_EarningsPerShareBasic | $ 0.47us-gaap_EarningsPerShareBasic | $ 0.46us-gaap_EarningsPerShareBasic | $ 0.37us-gaap_EarningsPerShareBasic | $ 1.99us-gaap_EarningsPerShareBasic | $ 1.81us-gaap_EarningsPerShareBasic | $ 1.82us-gaap_EarningsPerShareBasic |  |  |  |  |  | 
      
        | Diluted (in dollars per share) | $ 0.55us-gaap_EarningsPerShareDiluted | $ 0.54us-gaap_EarningsPerShareDiluted | $ 0.55us-gaap_EarningsPerShareDiluted | $ 0.33us-gaap_EarningsPerShareDiluted | $ 0.50us-gaap_EarningsPerShareDiluted | $ 0.46us-gaap_EarningsPerShareDiluted | $ 0.45us-gaap_EarningsPerShareDiluted | $ 0.36us-gaap_EarningsPerShareDiluted | $ 1.96us-gaap_EarningsPerShareDiluted | $ 1.77us-gaap_EarningsPerShareDiluted | $ 1.78us-gaap_EarningsPerShareDiluted |  |  |  |  |  | 
      
        | Business Acquisition, Pro Forma Revenue |  |  |  |  |  |  |  |  | 786,048us-gaap_BusinessAcquisitionsProFormaRevenue | 710,107us-gaap_BusinessAcquisitionsProFormaRevenue |  |  |  |  |  |  | 
      
        | Business Acquisition, Pro Forma Income (Loss) from Continuing Operations before Changes in Accounting and Extraordinary Items, Net of Tax |  |  |  |  |  |  |  |  | 96,596us-gaap_BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax | 91,215us-gaap_BusinessAcquisitionsProFormaIncomeLossFromContinuingOperationsBeforeChangesInAccountingAndExtraordinaryItemsNetOfTax |  |  |  |  |  |  | 
      
        | Business Acquisition, Pro Forma Net Income (Loss) |  |  |  |  |  |  |  |  | 61,286us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss | 58,713us-gaap_BusinessAcquisitionsProFormaNetIncomeLoss |  |  |  |  |  |  | 
      
        | Business Acquisition, Pro Forma Earnings Per Share, Basic |  |  |  |  |  |  |  |  | $ 2.00us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic | $ 1.95us-gaap_BusinessAcquisitionProFormaEarningsPerShareBasic |  |  |  |  |  |  | 
      
        | Business Acquisition, Pro Forma Earnings Per Share, Diluted |  |  |  |  |  |  |  |  | $ 1.97us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted | $ 1.91us-gaap_BusinessAcquisitionProFormaEarningsPerShareDiluted |  |  |  |  |  |  | 
      
        | Forward Air [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Goodwill, Net | 93,842us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis
 = fwrd_ForwardAirMember
 |  |  |  | 37,926us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis
 = fwrd_ForwardAirMember
 |  |  |  | 93,842us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis
 = fwrd_ForwardAirMember
 | 37,926us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis
 = fwrd_ForwardAirMember
 |  | 37,926us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis
 = fwrd_ForwardAirMember
 |  |  |  |  | 
      
        | Net income (loss) |  |  |  |  |  |  |  |  | 53,985us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis
 = fwrd_ForwardAirMember
 | 51,251us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis
 = fwrd_ForwardAirMember
 | 51,127us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis
 = fwrd_ForwardAirMember
 |  |  |  |  |  | 
      
        | FASI [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Goodwill, Net | 12,359us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis
 = fwrd_FasiMember
 |  |  |  | 12,359us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis
 = fwrd_FasiMember
 |  |  |  | 12,359us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis
 = fwrd_FasiMember
 | 12,359us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis
 = fwrd_FasiMember
 |  | 12,359us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis
 = fwrd_FasiMember
 |  |  |  |  | 
      
        | Net income (loss) |  |  |  |  |  |  |  |  | 3,790us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis
 = fwrd_FasiMember
 | 1,255us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis
 = fwrd_FasiMember
 | 1,541us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis
 = fwrd_FasiMember
 |  |  |  |  |  | 
      
        | TQI [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Net income (loss) |  |  |  |  |  |  |  |  | 3,394us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis
 = fwrd_TQIMember
 | 1,961us-gaap_NetIncomeLoss / us-gaap_StatementBusinessSegmentsAxis
 = fwrd_TQIMember
 |  |  |  |  |  |  | 
      
        | RGL and MMT [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets |  |  |  |  |  |  |  |  |  |  |  |  |  | 287us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_RGLandMMTMember
 |  |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Total Liabilities Assumed, Total Tangible Assets |  |  |  |  |  |  |  |  |  |  |  |  |  | 287fwrd_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandTotalLiabilitiesAssumedTotalTangibleAssets / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_RGLandMMTMember
 |  |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,888us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_RGLandMMTMember
 |  |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_RGLandMMTMember
 |  |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_RGLandMMTMember
 |  |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Assets |  |  |  |  |  |  |  |  |  |  |  |  |  | 8,175us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_RGLandMMTMember
 |  |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Total Liabilities Assumed, Net Total Assets |  |  |  |  |  |  |  |  |  |  |  |  |  | 7,175fwrd_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandTotalLiabilitiesAssumedNetTotalAssets / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_RGLandMMTMember
 |  |  | 
      
        | RGL and MMT [Member] | Noncompete Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  | 92us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
 = us-gaap_NoncompeteAgreementsMember
 / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_RGLandMMTMember
 |  |  | 
      
        | RGL and MMT [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  |  |  |  |  |  |  | 15 years |  |  |  |  |  |  |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,590us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
 = us-gaap_CustomerRelationshipsMember
 / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_RGLandMMTMember
 |  |  | 
      
        | RGL and MMT [Member] | Goodwill [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,206us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
 = us-gaap_GoodwillMember
 / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_RGLandMMTMember
 |  |  | 
      
        | MMT [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Business Acquisition, Cash Paid |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,825fwrd_BusinessAcquisitionCashPaid / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_MMTMember
 |  |  | 
      
        | Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_MMTMember
 |  |  | 
      
        | RGL [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Business Acquisition, Cash Paid |  | 1,350fwrd_BusinessAcquisitionCashPaid / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_RGLMember
 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | CST [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Logistics revenue |  |  |  |  |  |  |  |  | 52,061fwrd_LogisticsRevenue / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  |  |  |  |  |  |  | 
      
        | Other revenues |  |  |  |  |  |  |  |  | 20,253us-gaap_RevenueOtherFinancialServices / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  |  |  |  |  |  |  | 
      
        | Business Acquisition, Cash Paid |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 82,998fwrd_BusinessAcquisitionCashPaid / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  | 
      
        | Noncash or Part Noncash Acquisition, Debt Assumed |  |  |  | 11,215us-gaap_NoncashOrPartNoncashAcquisitionDebtAssumed1 / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Escrow Deposit |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,000us-gaap_EscrowDeposit / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  | 
      
        | Business Combination, Acquired Receivables, Gross Contractual Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 9,339us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 101us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,132us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 35us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Total Liabilities Assumed, Total Tangible Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11,607fwrd_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandTotalLiabilitiesAssumedTotalTangibleAssets / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 89,140us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6,535us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 11,215us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 17,750us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100,747us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  | 
      
        | Operating Income (Loss) |  |  |  |  |  |  |  |  | 7,525us-gaap_OperatingIncomeLoss / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  |  |  |  |  |  |  | 
      
        | Net income (loss) |  |  |  |  |  |  |  |  | 4,586us-gaap_NetIncomeLoss / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  |  |  |  |  |  |  | 
      
        | Basic (in dollars per share) |  |  |  |  |  |  |  |  | $ 0.15us-gaap_EarningsPerShareBasic / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  |  |  |  |  |  |  | 
      
        | Diluted (in dollars per share) |  |  |  |  |  |  |  |  | $ 0.15us-gaap_EarningsPerShareDiluted / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  |  |  |  |  |  |  | 
      
        | Business Acquisition, Transaction Costs |  | 900us-gaap_BusinessAcquisitionCostOfAcquiredEntityTransactionCosts / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Total Liabilities Assumed, Net Total Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 82,997fwrd_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandTotalLiabilitiesAssumedNetTotalAssets / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  | 
      
        | CST [Member] | Noncompete Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 930us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
 = us-gaap_NoncompeteAgreementsMember
 / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  | 
      
        | CST [Member] | Trade Names [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  |  |  |  |  |  |  | 2 years |  |  |  |  |  |  |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 500us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
 = us-gaap_TradeNamesMember
 / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  | 
      
        | CST [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  |  |  |  |  |  |  | 15 years |  |  |  |  |  |  |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 36,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
 = us-gaap_CustomerRelationshipsMember
 / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  | 
      
        | CST [Member] | Goodwill [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 51,710us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
 = us-gaap_GoodwillMember
 / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_CSTMember
 |  | 
      
        | TQI [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Logistics revenue |  |  |  |  |  |  |  |  |  |  |  | 41,842fwrd_LogisticsRevenue / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 |  |  |  |  | 
      
        | Business Acquisition, Percentage of Voting Interests Acquired |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00%us-gaap_BusinessAcquisitionPercentageOfVotingInterestsAcquired / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Goodwill, Net | 45,164us-gaap_Goodwill / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 |  |  |  | 45,164us-gaap_Goodwill / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 |  |  |  | 45,164us-gaap_Goodwill / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 45,164us-gaap_Goodwill / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 |  | 45,164us-gaap_Goodwill / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 |  |  |  |  | 
      
        | Business Acquisition, Cash Paid |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 45,328fwrd_BusinessAcquisitionCashPaid / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Noncash or Part Noncash Acquisition, Debt Assumed |  |  |  |  |  |  |  |  | 20,113us-gaap_NoncashOrPartNoncashAcquisitionDebtAssumed1 / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 |  |  |  |  |  |  |  | 
      
        | Business Combination, Contingent Consideration, Liability | 0us-gaap_BusinessCombinationContingentConsiderationLiability / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 |  |  |  |  |  |  |  | 0us-gaap_BusinessCombinationContingentConsiderationLiability / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 |  |  |  |  |  |  | 615us-gaap_BusinessCombinationContingentConsiderationLiability / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Escrow Deposit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,500us-gaap_EscrowDeposit / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, Low |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueLow / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,000us-gaap_BusinessCombinationContingentConsiderationArrangementsRangeOfOutcomesValueHigh / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Fair Value Inputs, Discount Rate |  |  |  |  |  |  |  |  | 10.90%us-gaap_FairValueInputsDiscountRate / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 |  |  |  |  |  |  |  | 
      
        | Business Combination, Acquisition Related Costs |  |  |  |  |  |  |  |  | 943us-gaap_BusinessCombinationAcquisitionRelatedCosts / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 |  |  |  |  |  |  |  | 
      
        | Business Combination, Acquired Receivables, Gross Contractual Amount |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,639us-gaap_BusinessCombinationAcquiredReceivablesGrossContractualAmount / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,093us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Other Noncurrent Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,103us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 728us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOtherNoncurrentAssets / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 947fwrd_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedDeferredTaxAssets / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Total Liabilities Assumed, Total Tangible Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 13,510fwrd_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandTotalLiabilitiesAssumedTotalTangibleAssets / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 68,934us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 4,725us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilities / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,735us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesOther / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20,113us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLongTermDebt / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10,543fwrd_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedDeferredTaxLiabilities / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 37,116us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilities / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 82,444us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssets / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Unrecognized Tax Benefits, Increase Resulting from Acquisition |  |  |  |  |  |  |  |  | 1,120us-gaap_UnrecognizedTaxBenefitsIncreasesResultingFromAcquisition / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 |  |  |  |  |  |  |  | 
      
        | Unrecognized Tax Benefits that Would Impact Effective Tax Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 853us-gaap_UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Unrecognized Tax Benefits, Income Tax Penalties Accrued |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 174us-gaap_UnrecognizedTaxBenefitsIncomeTaxPenaltiesAccrued / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Unrecognized Tax Benefits, Interest on Income Taxes Accrued |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 93us-gaap_UnrecognizedTaxBenefitsInterestOnIncomeTaxesAccrued / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Business Combination, Indemnification Assets, Amount as of Acquisition Date |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 728us-gaap_BusinessCombinationIndemnificationAssetsAmountAsOfAcquisitionDate / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | Operating Income (Loss) |  |  |  |  |  |  |  |  |  |  |  | 3,600us-gaap_OperatingIncomeLoss / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 |  |  |  |  | 
      
        | Net income (loss) |  |  |  |  |  |  |  |  |  |  |  | 1,961us-gaap_NetIncomeLoss / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 |  |  |  |  | 
      
        | Basic (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  | $ 0.07us-gaap_EarningsPerShareBasic / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 |  |  |  |  | 
      
        | Diluted (in dollars per share) |  |  |  |  |  |  |  |  |  |  |  | $ 0.06us-gaap_EarningsPerShareDiluted / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 |  |  |  |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Total Liabilities Assumed, Net Total Assets |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 45,328fwrd_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandTotalLiabilitiesAssumedNetTotalAssets / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | TQI [Member] | Noncompete Agreements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 470us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
 = us-gaap_NoncompeteAgreementsMember
 / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | TQI [Member] | Trade Names [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
 = us-gaap_TradeNamesMember
 / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | TQI [Member] | Customer Relationships [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Acquired Finite-lived Intangible Assets, Weighted Average Useful Life |  |  |  |  |  |  |  |  | 15 years |  |  |  |  |  |  |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 22,300us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
 = us-gaap_CustomerRelationshipsMember
 / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 | 
      
        | TQI [Member] | Goodwill [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
      
        | Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 45,164us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibles / us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
 = us-gaap_GoodwillMember
 / fwrd_ForwardAirCorp.SubsidiariesAxis
 = fwrd_TQIMember
 |