Derivative, Notional Amount Outstanding

No definition available.

Name:	arco_DerivativeNotionalAmountOutstanding
Namespace Prefix:	arco_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Percentage Of Principal And Interest Collections Hedged

+ References

No definition available.

+ Details

Name:	arco_PercentageOfPrincipalAndInterestCollectionsHedged
Namespace Prefix:	arco_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

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

- Definition

The number of derivative instruments of a particular group held by the entity.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI https://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959

+ Details

Name:	us-gaap_DerivativeNumberOfInstrumentsHeld
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount of cash paid for interest, excluding capitalized interest, classified as operating activity. Includes, but is not limited to, payment to settle zero-coupon bond for accreted interest of debt discount and debt instrument with insignificant coupon interest rate in relation to effective interest rate of borrowing attributable to accreted interest of debt discount.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 2
-URI https://asc.fasb.org/extlink&oid=126999549&loc=d3e4297-108586

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 17
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3367-108585

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 25
-Subparagraph (e)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3536-108585

+ Details

Name:	us-gaap_InterestPaidNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The net cash outflow or inflow from derivative instruments during the period, which are classified as financing activities, excluding those designated as hedging instruments.

+ References

No definition available.

+ Details

Name:	us-gaap_PaymentsForProceedsFromDerivativeInstrumentFinancingActivities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The net cash outflow or inflow for a financial contract that meets the hedge criteria as either cash flow hedge, fair value hedge or hedge of net investment in foreign operations.

+ References

No definition available.

+ Details

Name:	us-gaap_PaymentsForProceedsFromHedgeFinancingActivities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

The cash inflow provided by derivative instruments during the period, which are classified as financing activities, excluding those designated as hedging instruments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3255-108585

Reference 2: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 23
-URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3505-108585

+ Details

Name:	us-gaap_ProceedsFromDerivativeInstrumentFinancingActivities
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

Name:	us-gaap_HedgingDesignationAxis=us-gaap_DesignatedAsHedgingInstrumentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateSwapMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_HedgingDesignationAxis=us-gaap_NondesignatedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForwardContractsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentsGainLossByHedgingRelationshipAxis=us-gaap_CashFlowHedgingMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CrossCurrencyInterestRateContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DerivativeInstrumentRiskAxis=us-gaap_CallOptionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_ConsolidatedEntitiesAxis=srt_SubsidiariesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Derivative instruments - Narrative (Details) $ in Thousands, R$ in Millions	1 Months Ended		12 Months Ended
	May 31, 2021 USD ($)	May 31, 2021 BRL (R$)	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Oct. 31, 2020 instrument	Apr. 30, 2017 instrument
Derivative [Line Items]
Interest			$ 56,370	$ 52,578	$ 57,066
Collection of derivative instruments			0	23,240	0
Derivatives designated as hedging instruments \| Coupon-only swap
Derivative [Line Items]
Payments for (proceeds from) hedge				(170)	197
Derivatives not designated as hedging instruments
Derivative [Line Items]
Payments (proceeds) for derivative instruments			7,440	127
Derivatives not designated as hedging instruments \| Forward contracts
Derivative [Line Items]
Payments (proceeds) for derivative instruments			(1,128)	0	39
Cash Flow Hedging \| Forward contracts
Derivative [Line Items]
Payments for (proceeds from) hedge			263	(507)	1,757
Cash Flow Hedging \| Cross-currency interest rate swap
Derivative [Line Items]
Interest			5,637	$ 4,132	$ 4,031
Cash Flow Hedging \| Call spread
Derivative [Line Items]
Interest	$ 18,800	R$ 99.7
Cash Flow Hedging \| Coupon-only swap
Derivative [Line Items]
Collection of derivative instruments	$ 4,400	R$ 23.5
Cash Flow Hedging \| Derivatives designated as hedging instruments \| Forward contracts
Derivative [Line Items]
Notional amount outstanding			$ 34,843
Cash Flow Hedging \| Derivatives designated as hedging instruments \| Cross-currency interest rate swap
Derivative [Line Items]
Number of instruments held \| instrument						4
Cash Flow Hedging \| Subsidiaries \| Cross-currency interest rate swap
Derivative [Line Items]
Percentage of principal and interest collections hedged (as a percent)							(50.00%)
Cash Flow Hedging \| Subsidiaries \| Call spread
Derivative [Line Items]
Number of instruments held \| instrument							2
Percentage of principal and interest collections hedged (as a percent)							(50.00%)
Cash Flow Hedging \| Subsidiaries \| Coupon-only swap
Derivative [Line Items]
Number of instruments held \| instrument							2
Percentage of principal and interest collections hedged (as a percent)							(50.00%)