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Significant Events - Additional Information (Details) - Oak Street [Member] $ in Billions | 6 Months Ended
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Jun. 30, 2021 USD ($)
Real Estate Properties [Line Items] |
Real Estate Funding | $ 1.0
Date Of Real Estate Funding Agreement | May 03, 2021

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- Definition Date Of Real Estate Funding Agreement + References No definition available. + Details
Name: | arko_DateOfRealEstateFundingAgreement
Namespace Prefix: | arko_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

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- Definition Real Estate Funding + References No definition available. + Details
Name: | arko_RealEstateFunding
Namespace Prefix: | arko_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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
Name: | us-gaap_RealEstatePropertiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_RealEstatePropertiesAxis=arko_OakStreetMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |