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Components of Other Intangible Acquired (Detail) - CaseStack, Inc. [Member] $ in Thousands | 3 Months Ended
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Mar. 31, 2019 USD ($)
Customer Relationships [Member] | Logistics [Member] |
Other Intangible Assets [Line Items] |
Finite-lived intangible assets, Gross Amount | $ 65,600
Finite-lived intangible assets, Accumulated Amortization | 2,187
Finite-lived intangible assets, Net Carrying Value | $ 63,413
Intangible assets estimated useful life | 10 years
Customer Relationships [Member] | Transportation [Member] |
Other Intangible Assets [Line Items] |
Finite-lived intangible assets, Gross Amount | $ 8,700
Finite-lived intangible assets, Accumulated Amortization | 580
Finite-lived intangible assets, Net Carrying Value | $ 8,120
Intangible assets estimated useful life | 5 years
Trade Name [Member] |
Other Intangible Assets [Line Items] |
Finite-lived intangible assets, Gross Amount | $ 1,300
Finite-lived intangible assets, Accumulated Amortization | 289
Finite-lived intangible assets, Net Carrying Value | $ 1,011
Intangible assets estimated useful life | 18 months

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