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Description Of Business And Summary Of Significant Accounting Policies (Narrative) (Details)
 12 Months Ended
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