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Commitments and Contingencies (Details) $ in Millions | Jan. 20, 2021 USD ($)
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Commitments and Contingencies |
Partial payment received from Hanjin Shipping as common benefit claim and interest | $ 3.9

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- Definition Amount awarded from other party in judgment or settlement of litigation. + References No definition available. + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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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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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
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