XML 77 R1.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
Document and Entity Information - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2019
Jan. 31, 2020
Jun. 30, 2019
Document and Entity Information      
Document Type 10-K    
Document Annual Report true    
Document Period End Date Dec. 31, 2019    
Document Transition Report false    
Entity File Number 1-32731    
Entity Registrant Name CHIPOTLE MEXICAN GRILL, INC.    
Entity Incorporation, State or Country Code DE    
Entity Tax Identification Number 84-1219301    
Entity Address, Address Line One 610 Newport Center Drive    
Entity Address, Address Line Two Suite 1300    
Entity Address, City or Town Newport Beach    
Entity Address, State or Province CA    
Entity Address, Postal Zip Code 92660    
City Area Code 949    
Local Phone Number 524-4000    
Title of 12(b) Security Common stock, par value $0.01 per share    
Trading Symbol CMG    
Security Exchange Name NYSE    
Entity Well-known Seasoned Issuer Yes    
Entity Voluntary Filers No    
Entity Current Reporting Status Yes    
Entity Interactive Data Current Yes    
Entity Filer Category Large Accelerated Filer    
Entity Small Business false    
Entity Emerging Growth Company false    
Entity Shell Company false    
Entity Public Float     $ 14,301
Entity Common Stock, Shares Outstanding   27,767,965  
Entity Central Index Key 0001058090    
Current Fiscal Year End Date --12-31    
Document Fiscal Year Focus 2019    
Document Fiscal Period Focus FY    
Amendment Flag false