XML 147 R113.htm IDEA: XBRL DOCUMENT
v3.21.1

Venezuelan operations - Narrative (Details) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Aug. 20, 2018 / $ | Aug. 19, 2018 / $
Foreign Operations Disclosure [Line Items] |  |  |  |  |
Revenue from Venezuelan operations | $ 4,494 | $ 10,184 | $ 78,859 |  |
Operating income (loss) from Venezuelan operations | (7,712) | $ (8,240) | $ (52,054) |  |
NEW DICOM | Venezuela |  |  |  |  |
Foreign Operations Disclosure [Line Items] |  |  |  |  |
Foreign currency exchange rate (VES per USD) | / $ |  |  |  | 59.93 | 2.48
Non-monetary asset | $ 10,100 |  |  |  |

X
- Definition Asset, Reporting Currency Denominated, Non-monetary Value + References No definition available. + Details
Name: | arco_AssetReportingCurrencyDenominatedNonmonetaryValue
Namespace Prefix: | arco_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Foreign Operations Disclosure [Line Items] + References No definition available. + Details
Name: | arco_ForeignOperationsDisclosureLineItems
Namespace Prefix: | arco_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Operating income (loss) from foreign operations. + References No definition available. + Details
Name: | arco_OperatingIncomeFromForeignOperations
Namespace Prefix: | arco_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Revenue from foreign operations. + References No definition available. + Details
Name: | arco_RevenueFromForeignOperations
Namespace Prefix: | arco_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Foreign exchange rate used to translate amounts denominated in functional currency to reporting currency. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section S99 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6897108&loc=SL6897125-166521 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32618-110901 + Details
Name: | us-gaap_ForeignCurrencyExchangeRateTranslation1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | arco_ExchangeRateTypeAxis=arco_TipoDeCambioComplementaioNEWDICOMMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_StatementGeographicalAxis=country_VE
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |