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Business Segments - Additional Information (Detail) - 6 months ended Jun. 30, 2015 - Segment	Total
Segment Reporting [Abstract]
Reporting business segments	2
Number of railheads	one or more

X

- Definition

Number of railheads.

+ References

No definition available.

+ Details

Name:	hubg_NumberOfRailheads
Namespace Prefix:	hubg_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_SegmentReportingAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration