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Legal Matters - Additional Information (Detail) (Robles and Barillas lawsuits [Member], USD $) In Millions, unless otherwise specified	3 Months Ended	0 Months Ended
	Sep. 30, 2014	Feb. 11, 2015
Legal Settlement By Party [Line Items]
Settlement charges for individual drivers	$ 9.3us-gaap_LossContingencyDamagesPaidValue
Legal , communication and implementation charges	$ 1.0us-gaap_LitigationSettlementExpense
Subsequent Event [Member]
Legal Settlement By Party [Line Items]
Percentage of accepted settlement offer		92.00%hubg_LossContingencyPercentageOfClaimantsApprovingProposedSettlementOffer / us-gaap_LitigationCaseAxis = hubg_RoblesAndBarillasLawsuitsMember / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember

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Loss contingency percentage of claimants approving proposed settlement offer.

+ References

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Amount of litigation expense, including but not limited to legal, forensic, accounting, and investigative fees.

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Amount of damages paid to the plaintiff in the legal matter.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 450

-SubTopic 20

-Section 50

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