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Stock Buy Back Plans - Additional Information (Detail) (USD $) | 0 Months Ended | 1 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Oct. 31, 2014 | Nov. 30, 2014 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Oct. 22, 2014 | Nov. 30, 2012
Equity Class Of Treasury Stock [Line Items] |  |  |  |  |  |  |
Purchase of treasury shares (in shares) | 310,982 us-gaap_TreasuryStockSharesAcquired | 190,289 us-gaap_TreasuryStockSharesAcquired | 501,271 us-gaap_TreasuryStockSharesAcquired |  |  |  |
Purchase of treasury shares |  |  | $ 18,024,000 us-gaap_TreasuryStockValueAcquiredCostMethod | $ 13,791,000 us-gaap_TreasuryStockValueAcquiredCostMethod | $ 11,208,000 us-gaap_TreasuryStockValueAcquiredCostMethod |  |
Class A Common Stock [Member] |  |  |  |  |  |  |
Equity Class Of Treasury Stock [Line Items] |  |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  |  | 75,000,000 us-gaap_StockRepurchaseProgramAuthorizedAmount1 / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 25,000,000 us-gaap_StockRepurchaseProgramAuthorizedAmount1 / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember
Purchase of treasury shares (in shares) |  |  | 501,271 us-gaap_TreasuryStockSharesAcquired / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 377,906 us-gaap_TreasuryStockSharesAcquired / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |  |  |
Class A Common Stock [Member] | Employee Restricted Stock Plan [Member] |  |  |  |  |  |  |
Equity Class Of Treasury Stock [Line Items] |  |  |  |  |  |  |
Stock tendered for payments of withholding taxes (in shares) |  |  | 80,772 us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation / us-gaap_ShareRepurchaseProgramAxis = hubg_EmployeeRestrictedStockPlanMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | 75,995 us-gaap_SharesPaidForTaxWithholdingForShareBasedCompensation / us-gaap_ShareRepurchaseProgramAxis = hubg_EmployeeRestrictedStockPlanMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |  |  |
Purchase of treasury shares |  |  | $ 3,200,000 us-gaap_TreasuryStockValueAcquiredCostMethod / us-gaap_ShareRepurchaseProgramAxis = hubg_EmployeeRestrictedStockPlanMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember | $ 2,600,000 us-gaap_TreasuryStockValueAcquiredCostMethod / us-gaap_ShareRepurchaseProgramAxis = hubg_EmployeeRestrictedStockPlanMember / us-gaap_StatementClassOfStockAxis = us-gaap_CommonClassAMember |  |  |

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