XML 32 R14.htm IDEA: XBRL DOCUMENT v2.4.0.8

Basis of Presentation (Narrative) (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2014 region	Jun. 30, 2014 region	Sep. 30, 2014 segment
Product Information [Line Items]
Number of regions	8	9
Number of reportable segments			1
ShopHouse Southeast Asian Kitchen [Member]
Product Information [Line Items]
Number of restaurants	8		8
Pizzeria Locale [Member]
Product Information [Line Items]
Number of restaurants	1		1
United States [Member]
Product Information [Line Items]
Number of restaurants	1,698		1,698
Canada [Member]
Product Information [Line Items]
Number of restaurants	7		7
England [Member]
Product Information [Line Items]
Number of restaurants	6		6
France [Member]
Product Information [Line Items]
Number of restaurants	3		3
Germany [Member]
Product Information [Line Items]
Number of restaurants	1		1

X

- Definition

The number of regions by which the Company manages its operations.

+ References

No definition available.

+ Details

Name:	cmg_NumberOfRegionsInWhichEntityOperates
Namespace Prefix:	cmg_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Represents the number of restaurants.

+ References

No definition available.

+ Details

Name:	us-gaap_NumberOfRestaurants
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

X

- Details

Name:	us-gaap_ProductInformationLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration