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Summary of Operating Results (Detail) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 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
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue | $ 915,361 us-gaap_SalesRevenueServicesNet | $ 913,386 us-gaap_SalesRevenueServicesNet | $ 893,930 us-gaap_SalesRevenueServicesNet | $ 848,449 us-gaap_SalesRevenueServicesNet | $ 885,252 us-gaap_SalesRevenueServicesNet | $ 882,981 us-gaap_SalesRevenueServicesNet | $ 836,685 us-gaap_SalesRevenueServicesNet | $ 768,980 us-gaap_SalesRevenueServicesNet | $ 3,571,126 us-gaap_SalesRevenueServicesNet | $ 3,373,898 us-gaap_SalesRevenueServicesNet | $ 3,124,108 us-gaap_SalesRevenueServicesNet
Transportation costs |  |  |  |  |  |  |  |  | 3,200,691 us-gaap_CostOfServices | 3,002,875 us-gaap_CostOfServices | 2,768,042 us-gaap_CostOfServices
Gross margin | 89,910 us-gaap_GrossProfit | 93,196 us-gaap_GrossProfit | 98,585 us-gaap_GrossProfit | 88,744 us-gaap_GrossProfit | 95,088 us-gaap_GrossProfit | 93,124 us-gaap_GrossProfit | 95,473 us-gaap_GrossProfit | 87,338 us-gaap_GrossProfit | 370,435 us-gaap_GrossProfit | 371,023 us-gaap_GrossProfit | 356,066 us-gaap_GrossProfit
Costs and expenses: |  |  |  |  |  |  |  |  |  |  |
Salaries and benefits |  |  |  |  |  |  |  |  | 136,480 us-gaap_LaborAndRelatedExpense | 135,341 us-gaap_LaborAndRelatedExpense | 129,143 us-gaap_LaborAndRelatedExpense
Agent fees and commissions |  |  |  |  |  |  |  |  | 62,041 us-gaap_SalesCommissionsAndFees | 55,789 us-gaap_SalesCommissionsAndFees | 55,112 us-gaap_SalesCommissionsAndFees
General and administrative |  |  |  |  |  |  |  |  | 58,014 us-gaap_OtherGeneralAndAdministrativeExpense | 56,772 us-gaap_OtherGeneralAndAdministrativeExpense | 52,832 us-gaap_OtherGeneralAndAdministrativeExpense
Depreciation and amortization |  |  |  |  |  |  |  |  | 7,799 us-gaap_DepreciationAndAmortization | 6,470 us-gaap_DepreciationAndAmortization | 6,619 us-gaap_DepreciationAndAmortization
Driver settlements and related costs |  |  |  |  |  |  |  |  | 10,343 hubg_SettlementOffersToDriversAndRelatedCosts |  |
Impairment of software |  | 11,900 us-gaap_OtherAssetImpairmentCharges |  |  |  |  |  |  | 11,881 us-gaap_OtherAssetImpairmentCharges |  |
Impairment of trade name |  |  |  |  | 2,904 us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill |  |  |  |  | 2,904 us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill |
Total costs and expenses |  |  |  |  |  |  |  |  | 286,558 us-gaap_OperatingExpenses | 257,276 us-gaap_OperatingExpenses | 243,706 us-gaap_OperatingExpenses
Operating income | 24,777 us-gaap_OperatingIncomeLoss | 7,677 us-gaap_OperatingIncomeLoss | 30,927 us-gaap_OperatingIncomeLoss | 20,496 us-gaap_OperatingIncomeLoss | 27,251 us-gaap_OperatingIncomeLoss | 31,295 us-gaap_OperatingIncomeLoss | 30,464 us-gaap_OperatingIncomeLoss | 24,737 us-gaap_OperatingIncomeLoss | 83,877 us-gaap_OperatingIncomeLoss | 113,747 us-gaap_OperatingIncomeLoss | 112,360 us-gaap_OperatingIncomeLoss
Capital expenditures |  |  |  |  |  |  |  |  | 119,171 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | 110,917 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment | 56,882 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment
Operating Segments [Member] | Hub [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 2,722,799 us-gaap_SalesRevenueServicesNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember | 2,599,763 us-gaap_SalesRevenueServicesNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember | 2,392,289 us-gaap_SalesRevenueServicesNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember
Transportation costs |  |  |  |  |  |  |  |  | 2,461,144 us-gaap_CostOfServices / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember | 2,325,512 us-gaap_CostOfServices / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember | 2,128,942 us-gaap_CostOfServices / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember
Gross margin |  |  |  |  |  |  |  |  | 261,655 us-gaap_GrossProfit / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember | 274,251 us-gaap_GrossProfit / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember | 263,347 us-gaap_GrossProfit / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember
Costs and expenses: |  |  |  |  |  |  |  |  |  |  |
Salaries and benefits |  |  |  |  |  |  |  |  | 122,097 us-gaap_LaborAndRelatedExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember | 120,478 us-gaap_LaborAndRelatedExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember | 113,855 us-gaap_LaborAndRelatedExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember
Agent fees and commissions |  |  |  |  |  |  |  |  | 45 us-gaap_SalesCommissionsAndFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember | 1,372 us-gaap_SalesCommissionsAndFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember | 1,900 us-gaap_SalesCommissionsAndFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember
General and administrative |  |  |  |  |  |  |  |  | 51,108 us-gaap_OtherGeneralAndAdministrativeExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember | 50,484 us-gaap_OtherGeneralAndAdministrativeExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember | 45,411 us-gaap_OtherGeneralAndAdministrativeExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember
Depreciation and amortization |  |  |  |  |  |  |  |  | 6,238 us-gaap_DepreciationAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember | 4,326 us-gaap_DepreciationAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember | 4,448 us-gaap_DepreciationAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember
Driver settlements and related costs |  |  |  |  |  |  |  |  | 10,343 hubg_SettlementOffersToDriversAndRelatedCosts / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember |  |
Impairment of software |  |  |  |  |  |  |  |  | 11,881 us-gaap_OtherAssetImpairmentCharges / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember |  |
Impairment of trade name |  |  |  |  |  |  |  |  |  | 2,904 us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember |
Total costs and expenses |  |  |  |  |  |  |  |  | 201,712 us-gaap_OperatingExpenses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember | 179,564 us-gaap_OperatingExpenses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember | 165,614 us-gaap_OperatingExpenses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember
Operating income |  |  |  |  |  |  |  |  | 59,943 us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember | 94,687 us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember | 97,733 us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember
Capital expenditures |  |  |  |  |  |  |  |  | 118,640 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember | 109,412 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember | 54,266 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember
Operating Segments [Member] | Mode [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | 931,131 us-gaap_SalesRevenueServicesNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember | 823,159 us-gaap_SalesRevenueServicesNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember | 779,928 us-gaap_SalesRevenueServicesNet / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember
Transportation costs |  |  |  |  |  |  |  |  | 822,351 us-gaap_CostOfServices / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember | 726,387 us-gaap_CostOfServices / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember | 687,209 us-gaap_CostOfServices / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember
Gross margin |  |  |  |  |  |  |  |  | 108,780 us-gaap_GrossProfit / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember | 96,772 us-gaap_GrossProfit / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember | 92,719 us-gaap_GrossProfit / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember
Costs and expenses: |  |  |  |  |  |  |  |  |  |  |
Salaries and benefits |  |  |  |  |  |  |  |  | 14,383 us-gaap_LaborAndRelatedExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember | 14,863 us-gaap_LaborAndRelatedExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember | 15,288 us-gaap_LaborAndRelatedExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember
Agent fees and commissions |  |  |  |  |  |  |  |  | 61,996 us-gaap_SalesCommissionsAndFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember | 54,417 us-gaap_SalesCommissionsAndFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember | 53,212 us-gaap_SalesCommissionsAndFees / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember
General and administrative |  |  |  |  |  |  |  |  | 6,906 us-gaap_OtherGeneralAndAdministrativeExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember | 6,288 us-gaap_OtherGeneralAndAdministrativeExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember | 7,421 us-gaap_OtherGeneralAndAdministrativeExpense / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember
Depreciation and amortization |  |  |  |  |  |  |  |  | 1,561 us-gaap_DepreciationAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember | 2,144 us-gaap_DepreciationAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember | 2,171 us-gaap_DepreciationAndAmortization / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember
Total costs and expenses |  |  |  |  |  |  |  |  | 84,846 us-gaap_OperatingExpenses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember | 77,712 us-gaap_OperatingExpenses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember | 78,092 us-gaap_OperatingExpenses / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember
Operating income |  |  |  |  |  |  |  |  | 23,934 us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember | 19,060 us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember | 14,627 us-gaap_OperatingIncomeLoss / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember
Capital expenditures |  |  |  |  |  |  |  |  | 531 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember | 1,505 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember | 2,616 us-gaap_PaymentsToAcquirePropertyPlantAndEquipment / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember
Intersegment Elims [Member] |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |
Revenue |  |  |  |  |  |  |  |  | (82,804)us-gaap_SalesRevenueServicesNet / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember | (49,024)us-gaap_SalesRevenueServicesNet / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember | (48,109)us-gaap_SalesRevenueServicesNet / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember
Transportation costs |  |  |  |  |  |  |  |  | $ (82,804)us-gaap_CostOfServices / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember | $ (49,024)us-gaap_CostOfServices / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember | $ (48,109)us-gaap_CostOfServices / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember

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