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Description Of Business And Summary Of Significant Accounting Policies (Narrative) (Details) | 12 Months Ended |
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Dec. 31, 2018 USD ($) property segment item region | Dec. 31, 2017 USD ($) | Dec. 31, 2016 USD ($) | Dec. 31, 2015 USD ($) | [1]
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Number of regions | region | 8 |  |  |  |  |
Number of reportable segments | segment | 1 |  |  |  |  |
Gift cards revenue recognition period | 8 months |  |  |  |  |
Unredeemed gift card sales percentage | 4.00% |  |  |  |  |
Allowance for doubtful accounts, Accounts receivable | $ 0 | $ 0 |  |  |  |
Acquisition, development and construction of restaurant capitalized costs | 6,285,000 | 7,507,000 |  |  |  |
Goodwill impairment charges | 0 | 0 |  | $ 0 |  |
Advertising and marketing costs | $ 111,695,000 | 106,345,000 |  | 102,969,000 |  |
Maximum reasonably assured lease term | 20 years |  |  |  |  |
Compensation expense related to employees eligible to retire and retain full rights to the awards, recognition period | 6 months |  |  |  |  |
Operating lease liabilities | $ 10,740,000 | 1,416,000 |  |  |  |
Cash, cash equivalents, and restricted cash | $ 280,152,000 | 214,170,000 | [1] | 116,370,000 | [1] | $ 270,577,000
Accounting Standards Update 2016-02 [Member] |  |  |  |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Number of restaurants | property | 2,500 |  |  |  |  |
Operating lease liabilities | $ 2,700,000,000 |  |  |  |  |
Right-of-use assets | $ 2,400,000,000 |  |  |  |  |
Accounting Standards Update 2016-09 [Member] |  |  |  |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Cash, cash equivalents, and restricted cash |  | 214,170,000 |  | 116,370,000 |  |
Increase in net cash provided by operating activities |  | 1,111,000 |  | 5,918,000 |  |
Accounting Standards Update 2016-09 [Member] | Restricted Cash Into Cash, Cash Equivalents, And Restricted Cash [Member] |  |  |  |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Reclassification |  | $ 29,601,000 |  | $ 28,490,000 |  |
Minimum [Member] |  |  |  |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Reward program expiration period | 1 month |  |  |  |  |
Maximum [Member] |  |  |  |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Reward program expiration period | 6 months |  |  |  |  |
United States [Member] |  |  |  |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Number of restaurants | item | 2,452 |  |  |  |  |
International [Member] |  |  |  |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Number of restaurants | item | 37 |  |  |  |  |
Non Chipotle Restaurants [Member] |  |  |  |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |  |  |  |
Number of restaurants | item | 2 |  |  |  |  |
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 |  |  |  |  |
[1] | Balances were adjusted due to the adoption of Financial Accounting Standards Board Accounting Standards Update No. 2016-18, "Statement of Cash Flows (Topic 230): Restricted Cash" as discussed in further detail in Note 1. "Description of Business and Summary of Significant Accounting Policies Recent Accounting Standards"

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