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Description Of Business And Summary Of Significant Accounting Policies (Narrative) (Details) | 12 Months Ended |
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Dec. 31, 2020 USD ($) item region segment | Dec. 31, 2019 USD ($) | Dec. 31, 2018 USD ($) | Jan. 01, 2020 USD ($)
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Number of regions | region | 8 |  |  |
Number of reportable segments | segment | 1 |  |  |
Allowance for doubtful accounts | $ 1,588,000 | $ 7,000 |  |
Acquisition, development and construction of restaurant capitalized costs | $ 9,268,000 | 6,735,000 | $ 6,285,000 |
Option to extend, additional periods | 5 years |  |  |
Renewal period | 20 years |  |  |
Long-term debt | $ 0 |  |  |
Goodwill impairment charges | $ 0 |  |  |
Earned points expiration period for inactivity | 6 months |  |  |
Advertising and marketing costs | $ 158,570,000 | 141,567,000 | $ 111,695,000 |
Compensation expense related to employees eligible to retire and retain full rights to the awards, recognition period | 12 months |  |  |
Decrease to deferred income tax liability | $ 149,422,000 | 37,814,000 |  |
Decrease to retained earnings | $ 3,276,163,000 | $ 2,921,448,000 |  |
Minimum [Member] |  |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Remaining lease term | 1 year |  |  |
Tax benefit percentage for realization with a taxing authority | 50.00% |  |  |
Earned rewards expiration period | 1 month |  |  |
Maximum [Member] |  |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Remaining lease term | 20 years |  |  |
Earned rewards expiration period | 2 months |  |  |
Chipotle [Member] | United States [Member] |  |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Number of restaurants | item | 2,724 |  |  |
Chipotle [Member] | International [Member] |  |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Number of restaurants | item | 40 |  |  |
Pizzeria Locale [Member] |  |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Number of restaurants | item | 4 |  |  |
SOSARS [Member] |  |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Expiration period of SOSARs | 7 years |  |  |
Performance Shares [Member] |  |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Vesting period | 3 years |  |  |
Vesting Period 1 [Member] | SOSARS [Member] |  |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Vesting period | 2 years |  |  |
Vesting Period 2 [Member] | SOSARS [Member] |  |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Vesting period | 3 years |  |  |
Revision of Prior Period, Accounting Standards Update, Adjustment [Member] | Accounting Standards Update 2016-13 [Member] |  |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |  |
Increase to allowance for credit losses |  |  |  | $ 1,414,000
Decrease to deferred income tax liability |  |  |  | 363,000
Decrease to retained earnings |  |  |  | $ 1,051,000

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