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Segment Reporting - Schedule of Reconciliation of Operating Income from Reportable Segments to Consolidated Income Before Income Taxes (Parenthetical) (Details)	12 Months Ended
	Dec. 31, 2025 $ / gal
Segment Reporting [Abstract]
Fixed margin	5

X

- Definition

Fixed margin.

+ References

No definition available.

+ Details

Name:	arko_FixedMargin
Namespace Prefix:	arko_
Data Type:	srt-types:perUnitItemType
Balance Type:	na
Period Type:	duration

X

- References

No definition available.

+ Details

Name:	us-gaap_SegmentReportingAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration