XML 135 R102.htm IDEA: XBRL DOCUMENT
v3.19.1

Share-based compensation (Summary of Plan Activity) (Details) - $ / shares | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Stock Option | 2011 Equity Incentive Plan |  |  |
Restricted Stock Unit Activity [Roll Forward] |  |  |
Number of units outstanding, beginning balance (in shares) | 634,489 | 776,475 | 2,025,894
Forfeited, (in shares) |  |  | (80,734)
Expired (in shares) | (143,416) | (141,986) | (51,305)
Modification (in shares) |  |  | 1,117,380
Number of units outstanding, ending balance (in shares) | 491,073 | 634,489 | 776,475
Number of units exercisable, ending balance (in shares) | 455,719 |  |
Weighted-average strike price |  |  |
Outstanding, Weighted-average grant-date fair value, beginning balance (in dollars per share) | $ 14.28 | $ 15.55 | $ 21.03
Forfeitures, Weighted-average grant-date fair value, (in dollars per share) |  |  | 10.30
Expired, Weighted-average grant-date fair value (in dollars per share) | 21.20 | 21.20 | 14.05
Modification, Weighted-average grant-date fair value (in dollars per share) |  |  | 19.07
Outstanding, Weighted-average grant-date fair value, ending balance (in dollars per share) | 12.26 | 14.28 | 15.55
Exercisable, Weighted-average grant-date fair value (in dollars per share) | 12.55 |  |
Weighted-average grant-date fair value |  |  |
Outstanding at beginning of period, Weighted-average grant date fair value, (in dollars per share) | 4.28 | 4.46 | 5.87
Forfeitures, Weighted-average fair value (in dollars per share) |  |  | 2.68
Expired, Weighted-average grant date fair value, (in dollars per share) | 5.89 | 5.28 | 4.02
Modification, Weighted-average grant date fair value (in dollars per share) |  |  | 5.30
Outstanding at end of period, Weighted-average grant date fair value, (in dollars per share) | 3.81 | $ 4.28 | $ 4.46
Exercisable, Weighted-average grant date fair value, (in dollars per share) | $ 3.95 |  |
Restricted Share Units | 2011 Equity Incentive Plan |  |  |
Restricted Stock Unit Activity [Roll Forward] |  |  |
Number of units outstanding, beginning balance (in shares) | 1,736,845 | 1,780,997 | 1,230,210
Annual grant (in shares) | 520,393 | 497,960 | 865,291
Vested, (in shares) |  |  | (172,328)
Forfeited, (in shares) | (117,600) | (180,828) | (142,176)
Number of units outstanding, ending balance (in shares) | 1,605,049 | 1,736,845 | 1,780,997
Number of units exercisable, ending balance (in shares) | 0 |  |
Weighted-average strike price |  |  |
Outstanding, Weighted-average grant-date fair value, beginning balance (in dollars per share) | $ 6.65 | $ 6.07 | $ 7.96
Annual grant, Weighted-average grant-date fair value (in dollars per share) | 8.50 | 9.20 | 4.70
Vested, Weighted-average grant-date fair value (in dollars per share) |  |  | 12.25
Forfeitures, Weighted-average grant-date fair value, (in dollars per share) | 7.24 | 5.99 | 6.64
Outstanding, Weighted-average grant-date fair value, ending balance (in dollars per share) | 7.41 | $ 6.65 | $ 6.07
Exercisable, Weighted-average grant-date fair value (in dollars per share) | $ 0.00 |  |
Restricted Share Units | 2012 Equity Incentive Plan |  |  |
Restricted Stock Unit Activity [Roll Forward] |  |  |
Vested, (in shares) | (534,589) | (361,284) |
Weighted-average strike price |  |  |
Vested, Weighted-average grant-date fair value (in dollars per share) | $ 6.01 | $ 7.65 |

X
- Definition Weighted average grant-date fair value. + References No definition available. + Details
Name: | arco_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageFairValue
Namespace Prefix: | arco_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Weighted average grant-date fair value. + References No definition available. + Details
Name: | arco_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageFairValue
Namespace Prefix: | arco_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Expirations in Period, Weighted Average Exercise Price + References No definition available. + Details
Name: | arco_SharebasedCompensationArrangementbySharebasedPaymentAwardNonOptionEquityInstrumentsExpirationsinPeriodWeightedAverageExercisePrice
Namespace Prefix: | arco_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Expirations in Period, Weighted Average Grant Date Fair Value + References No definition available. + Details
Name: | arco_SharebasedCompensationArrangementbySharebasedPaymentAwardNonOptionEquityInstrumentsExpirationsinPeriodWeightedAverageGrantDateFairValue
Namespace Prefix: | arco_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Shares + References No definition available. + Details
Name: | arco_SharebasedCompensationArrangementbySharebasedPaymentAwardPlanModificationShares
Namespace Prefix: | arco_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Weighted Average Exercise Price + References No definition available. + Details
Name: | arco_SharebasedCompensationArrangementbySharebasedPaymentAwardPlanModificationWeightedAverageExercisePrice
Namespace Prefix: | arco_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Share-based Compensation Arrangement by Share-based Payment Award, Plan Modification, Weighted Average Grant Date Fair Value + References No definition available. + Details
Name: | arco_SharebasedCompensationArrangementbySharebasedPaymentAwardPlanModificationWeightedAverageGrantDateFairValue
Namespace Prefix: | arco_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

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_UnitBasedCompensationArrangementByUnitBasedPaymentAwardForfeituresWeightedAverageGrantDateFairValue
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 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 A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsNonvestedWeightedAverageGrantDateFairValueRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of options or other stock instruments for which the right to exercise has lapsed under the terms of the plan agreements. + 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 (c)(1)(iv)(4) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
Name: | us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsNonvestedWeightedAverageGrantDateFairValueAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_EmployeeStockOptionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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: |