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Legal Matters - Additional Information (Detail)
1 Months Ended 6 Months Ended
Aug. 05, 2015
Plaintiff
Employee
May 31, 2015
Plaintiff
Jun. 30, 2019
Lawsuit
Loss Contingencies [Line Items]      
Number of putative class action lawsuits | Lawsuit     3
Robles Lawsuits [Member]      
Loss Contingencies [Line Items]      
Percentage of California drivers who accepted settlement offers     96.00%
Number of new plaintiffs   2  
Number of plaintiffs against Hub Group Trucking 63    
Number of employees filed lawsuit | Employee 5    
Number of claims accepted settlement offers 58