XML 11 R1.htm IDEA: XBRL DOCUMENT v3.7.0.1
Document and Entity Information - shares
 6 Months Ended
Jun. 30, 2017
Jul. 25, 2017
Document Information [Line Items]    
Document Type 10-Q  
Amendment Flag false  
Document Period End Date Jun. 30, 2017  
Document Fiscal Year Focus 2017  
Document Fiscal Period Focus Q2  
Trading Symbol HUBG  
Entity Registrant Name Hub Group, Inc.  
Entity Central Index Key 0000940942  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Class A Common Stock [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   33,471,682
Class B Common Stock [Member]    
Document Information [Line Items]    
Entity Common Stock, Shares Outstanding   662,296