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Description Of Business And Summary Of Significant Accounting Policies (Narrative) (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 USD ($) segment item region | Dec. 31, 2016 USD ($) region | Dec. 31, 2015 USD ($)
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of regions | region | 9 | 11 |
Number of reportable segments | segment | 1 |  |
Unredeemed gift card sales percentage | 4.00% | 4.00% | 4.00%
Gift card breakage revenue recognition period | 8 months | 6 months |
Gift card breakage recognized | $ 3,590 | $ 3,624 | $ 4,226
Deferred Revenue | 0 | 5,489 |
Acquisition, development and construction of restaurant capitalized costs | 7,507 | 8,076 | 9,554
Goodwill impairment charges | 0 | 0 | 0
Restricted cash asset | 29,601 | 28,490 | 22,572
Aggregate impairment loss recognized on disposition of assets | 3,291 | 17,394 | 6,675
Advertising and marketing costs | $ 106,345 | 102,969 | $ 69,257
Maximum reasonably assured lease term | 20 years |  |
Expiration period of SOSARs | 7 years |  |
Compensation expense related to employees eligible to retire and retain full rights to the awards, recognition period | 6 months |  |
Accrued Payroll And Benefits [Member] |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated insurance liability | $ 37,096 | 35,550 |
Accrued Liabilities [Member] |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Estimated insurance liability | $ 14,014 | $ 13,881 |
United States [Member] |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Number of restaurants | item | 2,363 |  |
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 | 8 |  |
Performance Shares [Member] |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Vesting period | 3 years |  |
First Half Vested [Member] |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Vesting period | 2 years |  |
Second Half Vested [Member] |  |  |
Description Of Business And Summary Of Significant Accounting Policies [Line Items] |  |  |
Vesting period | 3 years |  |

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