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Description Of Business And Summary Of Significant Accounting Policies (Narrative) (Details) | 12 Months Ended
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Dec. 31, 2019 USD ($) item region segment | Dec. 31, 2018 USD ($) | Dec. 31, 2017 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, Accounts receivable | $ 7,000 | $ 0 |
Earned points expiration period for inactivity | 6 months |  |
Acquisition, development and construction of restaurant capitalized costs | $ 6,735,000 | 6,285,000 | $ 7,507,000
Option to extend, additional periods | 5 years |  |
Lessee, Operating Lease, Renewal Term | 20 years |  |
Long-term Debt | $ 0 |  |
Goodwill impairment charges | 0 | 0 | 0
Advertising and marketing costs | $ 141,567,000 | $ 111,695,000 | $ 106,345,000
Compensation expense related to employees eligible to retire and retain full rights to the awards, recognition period | 6 months |  |
Minimum [Member] |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Earned rewards expiration period | 1 month |  |
Lessee, Operating Lease, Term of Contract | 1 year |  |
Tax benefit percentage for realization with a taxing authority | 50.00% |  |
Maximum [Member] |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Earned rewards expiration period | 2 months |  |
Lessee, Operating Lease, Term of Contract | 20 years |  |
United States [Member] |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of restaurants | item | 2,580 |  |
International [Member] |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of restaurants | item | 39 |  |
Non Chipotle Restaurants [Member] |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of restaurants | item | 3 |  |
Performance Shares [Member] |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Vesting period | 3 years |  |
SOSARS [Member] |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Expiration period of SOSARs | 7 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 |  |

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