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Schedule of Assets (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Segment Reporting Information [Line Items]
Total assets	$ 1,212,127us-gaap_Assets	$ 1,047,943us-gaap_Assets
Goodwill	262,813us-gaap_Goodwill	263,032us-gaap_Goodwill	263,251us-gaap_Goodwill
Hub [Member]
Segment Reporting Information [Line Items]
Goodwill	233,424us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember	233,643us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember	233,862us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember
Mode [Member]
Segment Reporting Information [Line Items]
Goodwill	29,389us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember	29,389us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember	29,389us-gaap_Goodwill / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember
Operating Segments [Member] | Hub [Member]
Segment Reporting Information [Line Items]
Total assets	1,030,722us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember	887,848us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember
Goodwill	233,424us-gaap_Goodwill / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember	233,643us-gaap_Goodwill / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_HubMember
Operating Segments [Member] | Mode [Member]
Segment Reporting Information [Line Items]
Total assets	189,787us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember	164,071us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember
Goodwill	29,389us-gaap_Goodwill / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember	29,389us-gaap_Goodwill / us-gaap_ConsolidationItemsAxis = us-gaap_OperatingSegmentsMember / us-gaap_StatementBusinessSegmentsAxis = hubg_ModeMember
Intersegment Elims [Member]
Segment Reporting Information [Line Items]
Total assets	$ (8,382)us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember	$ (3,976)us-gaap_Assets / us-gaap_ConsolidationItemsAxis = us-gaap_IntersegmentEliminationMember

X

- Definition

Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.18)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

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-Section S99

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 12

-Article 7



Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 18

-Article 5

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X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 350

-SubTopic 20

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267



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