XML 50 R40.htm IDEA: XBRL DOCUMENT
v3.20.2

Commitments and Contingencies (Narrative) (Details) $ in Thousands |  | 6 Months Ended
--- | --- | ---
Jun. 01, 2020 USD ($) | Jun. 30, 2020 USD ($) item
Commitments and Contingencies [Abstract] |  |
Period DOJ has agreed to take no legal action |  | 3 years
Litigation settlement amount |  | $ 25,000
First payment, amount | $ 10,000 |
Number of separate payments | item |  | 3
Remaining payment amounts |  | $ 5,000
Payment period |  | 30 days
Loss contingency accrual |  | $ 31,385

X
- Definition Litigation Settlement, First Required Payment, Amount + References No definition available. + Details
Name: | cmg_LitigationSettlementFirstRequiredPaymentAmount
Namespace Prefix: | cmg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Litigation Settlement, Remaining Payment Amounts + References No definition available. + Details
Name: | cmg_LitigationSettlementRemainingPaymentAmounts
Namespace Prefix: | cmg_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number Of Litigation Payments + References No definition available. + Details
Name: | cmg_NumberOfLitigationPayments
Namespace Prefix: | cmg_
Data Type: | xbrli:positiveIntegerItemType
Balance Type: | na
Period Type: | duration

X
- Definition Payment period. + References No definition available. + Details
Name: | cmg_PaymentPeriod
Namespace Prefix: | cmg_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Period DOJ Agreed To Take No Legal Action + References No definition available. + Details
Name: | cmg_PeriodDojAgreedToTakeNoLegalAction
Namespace Prefix: | cmg_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Amount of loss contingency liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 + Details
Name: | us-gaap_LossContingencyAccrualAtCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of damages awarded to the plaintiff in the legal matter. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 9 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14557-108349 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 + Details
Name: | us-gaap_LossContingencyDamagesAwardedValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration