XML 136 R102.htm IDEA: XBRL DOCUMENT v3.21.1

Share-based compensation - Summary of Activity of Restricted Share Units (Details) - Restricted Share Units - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
2011 Equity Incentive Plan
Units
Units, beginning balance (in shares)	937,839	1,605,049	1,736,845
Annual grant (in shares)		35,000	520,393
Forfeitures (in shares)	(4,367)	(239,621)	(117,600)
Units, ending balance (in shares)	451,198	937,839	1,605,049
Units, exercisable (in shares)	0
Weighted-average strike price
Units, beginning balance (in dollars per share)	$ 7.50	$ 7.41	$ 6.65
Annual grant (in dollars per share)		8.00	8.50
Forfeitures (in dollars per share)	7.75	7.74	7.24
Units, ending balance (in dollars per share)	7.80	$ 7.50	$ 7.41
Units, exercisable (in dollars per share)	$ 0
Number of units outstanding	451,198
Weighted-average grant-date fair market value per unit (in dollars per share)	$ 7.80
Total grant-date fair value	$ 3,519
Weighted-average accumulated percentage of service	80.44%
Stock-based compensation recognized in Additional paid-in capital	$ 2,831
Compensation expense not yet recognized	$ 688
Weighted-average period for recognition	8 months 12 days
Partial Vesting
Units
Partial vesting (in shares)			(534,589)
Weighted-average strike price
Partial vesting (in dollars per share)			$ 6.01
2014 grant
Units
Partial vesting (in shares)		(38,222)
Weighted-average strike price
Partial vesting (in dollars per share)		$ 8.58
2015 grant
Units
Partial vesting (in shares)	(101,928)	(115,634)
Weighted-average strike price
Partial vesting (in dollars per share)	$ 6.33	$ 6.33
2016 grant
Units
Partial vesting (in shares)	(114,045)	(134,501)
Weighted-average strike price
Partial vesting (in dollars per share)	$ 4.70	$ 4.70
2017 grant
Units
Partial vesting (in shares)	(67,606)	(174,232)
Weighted-average strike price
Partial vesting (in dollars per share)	$ 9.20	$ 9.20
2018 grant
Units
Partial vesting (in shares)	(163,695)
Weighted-average strike price
Partial vesting (in dollars per share)	$ 8.50
2019 grant
Units
Partial vesting (in shares)	(35,000)
Weighted-average strike price
Partial vesting (in dollars per share)	$ 8.00

X

- Definition

Compensation expense related to non-vested units that will be recognized in future awards.

+ References

No definition available.

+ Details

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

X

- Definition

Number of units exercisable in the period.

+ References

No definition available.

+ Details

Name:	arco_UnitBasedCompensationArrangementByUnitBasedPaymentAwardExercisableInPeriod
Namespace Prefix:	arco_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Weighted average strike price of exercisable units.

+ References

No definition available.

+ Details

Name:	arco_UnitBasedCompensationArrangementByUnitBasedPaymentAwardExercisableWeightedAverageExerciseBaseValue
Namespace Prefix:	arco_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

+ References

No definition available.

+ Details

Name:	arco_UnitBasedCompensationArrangementByUnitBasedPaymentAwardForfeitedInPeriod
Namespace Prefix:	arco_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Weighted average strike price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

No definition available.

+ Details

Name:	arco_UnitBasedCompensationArrangementByUnitBasedPaymentAwardForfeitedWeightedAverageExerciseBaseValue
Namespace Prefix:	arco_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Weighted average grant-date fair value.

+ References

No definition available.

+ Details

Name:	arco_UnitBasedCompensationArrangementByUnitBasedPaymentAwardGrantedWeightedAverageExercisedBaseValue
Namespace Prefix:	arco_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

+ Details

Name:	arco_UnitBasedCompensationArrangementByUnitBasedPaymentAwardGrantsInPeriod
Namespace Prefix:	arco_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Total fair value of outstanding units, including vested and non-vested units.

+ References

No definition available.

+ Details

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

X

- Definition

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	arco_UnitBasedCompensationArrangementByUnitBasedPaymentAwardOutstandingNumber
Namespace Prefix:	arco_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Weighted average grant-date fair value.

+ References

No definition available.

+ Details

Name:	arco_UnitBasedCompensationArrangementByUnitBasedPaymentAwardOutstandingWeightedAverageBaseValue
Namespace Prefix:	arco_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	instant

X

- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ References

No definition available.

+ Details

Name:	arco_UnitBasedCompensationArrangementByUnitBasedPaymentAwardVestedInPeriod
Namespace Prefix:	arco_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

+ References

No definition available.

+ Details

Name:	arco_UnitBasedCompensationArrangementByUnitBasedPaymentAwardVestedWeightedAverageGrantDateFairValue
Namespace Prefix:	arco_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

As of the balance sheet date weighted-average accumulated percentage of service rendered by employees for both vested and non-vested outstanding units.

+ References

No definition available.

+ Details

Name:	arco_UnitBasedCompensationArrangementByUnitBasedPaymentAwardWeightedAverageAccumulatedPercentageOfService
Namespace Prefix:	arco_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

As of the balance sheet date, the weighted-average fair market value of both vested and non-vested outstanding units.

+ References

No definition available.

+ Details

Name:	arco_UnitBasedCompensationArrangementByUnitBasedPaymentAwardWeightedAverageFairValue
Namespace Prefix:	arco_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Units, Shares [Roll Forward]

+ References

No definition available.

+ Details

Name:	arco_UnitsSharesRollForward
Namespace Prefix:	arco_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Units, Weighted Average Strike Price [Roll Forward]

+ References

No definition available.

+ Details

Name:	arco_UnitsWeightedAverageStrikePriceRollForward
Namespace Prefix:	arco_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount of increase (decrease) to additional paid-in capital (APIC) for recognition and exercise of award under share-based payment arrangement.

+ References

No definition available.

+ Details

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

X

- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

Name:	us-gaap_EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

+ Details

Name:	us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingNumber
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_PlanNameAxis=arco_TwoThousandElevenEquityIncentivePlanMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_AwardTypeAxis=us-gaap_RestrictedStockUnitsRSUMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PlanNameAxis=arco_TwoThousandElevenEquityIncentivePlan2012GrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PlanNameAxis=arco_A2011EquityIncentivePlan2014GrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PlanNameAxis=arco_A2011EquityIncentivePlan2015GrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PlanNameAxis=arco_TwoThousandElevenEquityIncentivePlan2016GrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PlanNameAxis=arco_TwoThousandElevenEquityIncentivePlan2017GrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PlanNameAxis=arco_TwoThousandElevenEquityIncentivePlan2018GrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_PlanNameAxis=arco_TwoThousandElevenEquityIncentivePlan2019GrantsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: