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Discontinued Operations - Additional Information (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2019 | Sep. 30, 2018 | Sep. 30, 2019 | Sep. 30, 2018 | Mar. 31, 2019 | Dec. 31, 2018
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |
Revenue | $ 913,275 | $ 933,224 | $ 2,767,436 | $ 2,665,300 |  |
Hub Group , Inc [Member] | Consolidation, Eliminations [Member] |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |
Revenue |  | 2,700 |  | 17,900 |  |
Mode [Member] |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |
Total consideration received |  | 238,500 |  | 238,500 | $ 19,400 |
Mode [Member] | Consolidation, Eliminations [Member] |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |
Revenue |  | $ 10,600 |  | $ 42,200 |  |
Mode [Member] | Other Receivables [Member] |  |  |  |  |  |
Income Statement Balance Sheet And Additional Disclosures By Disposal Groups Including Discontinued Operations [Line Items] |  |  |  |  |  |
Total consideration received |  |  |  |  |  | $ 19,400

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