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Selected Quarterly Financial Data (Unaudited) - Summary of Selected Quarterly Financial Data (Parenthetical) (Detail) - USD ($) $ in Millions | 3 Months Ended
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Sep. 30, 2020 | Jun. 30, 2020
Quarterly Financial Information Disclosure [Abstract] |  |
Donation of refrigerated trailers | $ 0.2 | $ 5.4

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- Definition Noncash charitable contributions made by the entity during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
Name: | us-gaap_NoncashContributionExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_QuarterlyFinancialInformationDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration