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Schedule of Outstanding Debt (Detail) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Secured long-term debt	$ 98,006us-gaap_LongTermDebt	$ 92,079us-gaap_LongTermDebt
Less current portion	(21,921)us-gaap_LongTermDebtCurrent	(19,619)us-gaap_LongTermDebtCurrent
Total long-term debt	76,085us-gaap_LongTermDebtNoncurrent	72,460us-gaap_LongTermDebtNoncurrent
Secured Equipment Notes due in March 2020 [Member]
Debt Instrument [Line Items]
Equipment note	2,333us-gaap_SecuredDebt / us-gaap_LongtermDebtTypeAxis = hubg_EquipmentNotesDueMarchTwoThousandTwentyMember
Secured Equipment Notes due in January 2020 [Member]
Debt Instrument [Line Items]
Equipment note	8,855us-gaap_SecuredDebt / us-gaap_LongtermDebtTypeAxis = hubg_EquipmentNotesDueJanuaryTwoThousandTwentyMember
Secured Equipment Notes due in December 2019 [Member]
Debt Instrument [Line Items]
Equipment note	12,753us-gaap_SecuredDebt / us-gaap_LongtermDebtTypeAxis = hubg_EquipmentNotesDueDecemberTwoThousandNineteenMember	13,387us-gaap_SecuredDebt / us-gaap_LongtermDebtTypeAxis = hubg_EquipmentNotesDueDecemberTwoThousandNineteenMember
Secured Equipment Notes due in November 2019 [Member]
Debt Instrument [Line Items]
Equipment note	26,623us-gaap_SecuredDebt / us-gaap_LongtermDebtTypeAxis = hubg_EquipmentNotesDueNovemberTwoThousandNineteenMember	28,429us-gaap_SecuredDebt / us-gaap_LongtermDebtTypeAxis = hubg_EquipmentNotesDueNovemberTwoThousandNineteenMember
Secured Equipment Notes due in September 2019 [Member]
Debt Instrument [Line Items]
Equipment note	21,630us-gaap_SecuredDebt / us-gaap_LongtermDebtTypeAxis = hubg_EquipmentNotesDueSeptemberTwoThousandNineteenMember	22,772us-gaap_SecuredDebt / us-gaap_LongtermDebtTypeAxis = hubg_EquipmentNotesDueSeptemberTwoThousandNineteenMember
Secured Equipment Notes due in February 2019 [Member]
Debt Instrument [Line Items]
Equipment note	19,784us-gaap_SecuredDebt / us-gaap_LongtermDebtTypeAxis = hubg_EquipmentNotesDueFebruaryTwoThousandNineteenMember	21,016us-gaap_SecuredDebt / us-gaap_LongtermDebtTypeAxis = hubg_EquipmentNotesDueFebruaryTwoThousandNineteenMember
Secured Equipment Notes due in June 2018 [Member]
Debt Instrument [Line Items]
Equipment note	$ 6,028us-gaap_SecuredDebt / us-gaap_LongtermDebtTypeAxis = hubg_EquipmentNotesDueJuneTwoThousandEighteenMember	$ 6,475us-gaap_SecuredDebt / us-gaap_LongtermDebtTypeAxis = hubg_EquipmentNotesDueJuneTwoThousandEighteenMember

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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