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Summary of Total Purchase Price Allocated to Net Assets Acquired (Detail) - USD ($) $ in Thousands | Dec. 03, 2018 | Jul. 01, 2017
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Estenson Logistics, LLC [Member] |  |
Business Acquisition [Line Items] |  |
Cash paid |  | $ 165,945
Consideration payable |  | 1,366
Contingent consideration, fair value |  | 4,703
Total consideration |  | 172,014
Equipment debt assumed |  | 112,677
Total base purchase price |  | $ 284,691
CaseStack, Inc. [Member] |  |
Business Acquisition [Line Items] |  |
Cash paid | $ 248,656 |
Deferred purchase consideration | 3,469 |
Total base purchase price | $ 252,125 |

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