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Legal Matters - Additional Information (Detail) |  | 1 Months Ended | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | ---
Aug. 05, 2015 Plaintiff Employee | May 31, 2015 Plaintiff | Mar. 31, 2019 Lawsuit | Sep. 30, 2018
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 |  |  |

X
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- Definition Number of putative class action lawsuits. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition The total number of new claims filed pertaining to a loss contingency during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=82911808&loc=d3e14435-108349 + Details
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- Details
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