XML 55 R34.htm IDEA: XBRL DOCUMENT
v2.4.1.9

Shareholders' Equity (Narrative) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified | 12 Months Ended | 0 Months Ended |
--- | --- | --- | ---
Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Feb. 19, 2013 | Nov. 20, 2012 | Feb. 03, 2015
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |
Stock repurchase program, authorized amount | $ 800,000 us-gaap_StockRepurchaseProgramAuthorizedAmount1 |  |  |  |  |
Acquisition of treasury stock (value), total | 88,338 us-gaap_TreasuryStockValueAcquiredCostMethod | 138,903 us-gaap_TreasuryStockValueAcquiredCostMethod | 217,092 us-gaap_TreasuryStockValueAcquiredCostMethod |  |  |
Value of common shares remaining to be repurchased | 102,210 us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1 |  |  |  |  |
Subsequent Event [Member] |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |
Stock repurchase program, additional authorized amount |  |  |  |  |  | 100,000 cmg_StockRepurchaseProgramAdditionalAuthorizedAmount / us-gaap_SubsequentEventTypeAxis = us-gaap_SubsequentEventMember
Accelerated Share Repurchase Transaction [Member] |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |
Stock repurchase program, authorized amount |  |  |  |  | 25,000 us-gaap_StockRepurchaseProgramAuthorizedAmount1 / us-gaap_ShareRepurchaseProgramAxis = cmg_AcceleratedShareRepurchaseTransactionMember |
Acquisition of treasury stock (shares) |  |  |  | 22 us-gaap_TreasuryStockSharesAcquired / us-gaap_ShareRepurchaseProgramAxis = cmg_AcceleratedShareRepurchaseTransactionMember | 65 us-gaap_TreasuryStockSharesAcquired / us-gaap_ShareRepurchaseProgramAxis = cmg_AcceleratedShareRepurchaseTransactionMember |
Percentage of treasury shares acquired |  |  |  |  | 70.00%cmg_PercentageOfTreasurySharesAcquired / us-gaap_ShareRepurchaseProgramAxis = cmg_AcceleratedShareRepurchaseTransactionMember |
Weighted-average price per share |  |  |  | $ 287.20 us-gaap_TreasuryStockAcquiredAverageCostPerShare / us-gaap_ShareRepurchaseProgramAxis = cmg_AcceleratedShareRepurchaseTransactionMember |  |
Advance payment under agreement |  |  |  |  | 25,000 us-gaap_AcceleratedShareRepurchasesSettlementPaymentOrReceipt / us-gaap_ShareRepurchaseProgramAxis = cmg_AcceleratedShareRepurchaseTransactionMember |
Repurchases in Accordance with Stock Award Agreements [Member] |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |
Acquisition of treasury stock (shares) | 1 us-gaap_TreasuryStockSharesAcquired / us-gaap_ShareRepurchaseProgramAxis = cmg_NotPartOfShareRepurchasePlanMember | 57 us-gaap_TreasuryStockSharesAcquired / us-gaap_ShareRepurchaseProgramAxis = cmg_NotPartOfShareRepurchasePlanMember | 28 us-gaap_TreasuryStockSharesAcquired / us-gaap_ShareRepurchaseProgramAxis = cmg_NotPartOfShareRepurchasePlanMember |  |  |
Acquisition of treasury stock (value), total | 342 us-gaap_TreasuryStockValueAcquiredCostMethod / us-gaap_ShareRepurchaseProgramAxis = cmg_NotPartOfShareRepurchasePlanMember | 28,916 us-gaap_TreasuryStockValueAcquiredCostMethod / us-gaap_ShareRepurchaseProgramAxis = cmg_NotPartOfShareRepurchasePlanMember | 10,698 us-gaap_TreasuryStockValueAcquiredCostMethod / us-gaap_ShareRepurchaseProgramAxis = cmg_NotPartOfShareRepurchasePlanMember |  |  |
Share Repurchase Plans, including Accelerated Share Repurchase [Member] |  |  |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |  |  |
Acquisition of treasury stock (shares) | 154 us-gaap_TreasuryStockSharesAcquired / us-gaap_ShareRepurchaseProgramAxis = cmg_ShareRepurchaseProgramMember | 336 us-gaap_TreasuryStockSharesAcquired / us-gaap_ShareRepurchaseProgramAxis = cmg_ShareRepurchaseProgramMember | 686 us-gaap_TreasuryStockSharesAcquired / us-gaap_ShareRepurchaseProgramAxis = cmg_ShareRepurchaseProgramMember |  |  |
Acquisition of treasury stock (value), total | $ 87,996 us-gaap_TreasuryStockValueAcquiredCostMethod / us-gaap_ShareRepurchaseProgramAxis = cmg_ShareRepurchaseProgramMember | $ 109,987 us-gaap_TreasuryStockValueAcquiredCostMethod / us-gaap_ShareRepurchaseProgramAxis = cmg_ShareRepurchaseProgramMember | $ 206,394 us-gaap_TreasuryStockValueAcquiredCostMethod / us-gaap_ShareRepurchaseProgramAxis = cmg_ShareRepurchaseProgramMember |  |  |

X
- Definition Represents percentage of shares repurchased during the period of the total number of shares to be repurchased calculated using the closing price on the commencement date. + References No definition available. + Details
Name: | cmg_PercentageOfTreasurySharesAcquired
Namespace Prefix: | cmg_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Stock repurchase program, additional authorized amount + References No definition available. + Details
Name: | cmg_StockRepurchaseProgramAdditionalAuthorizedAmount
Namespace Prefix: | cmg_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of cash receipt from (payment to) bank; or stock received from (issuance to) bank in the settlement of the accelerated share repurchase agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 25 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6405686&loc=d3e22802-112653 + Details
Name: | us-gaap_AcceleratedShareRepurchasesSettlementPaymentOrReceipt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_EquityClassOfTreasuryStockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of stock repurchase plan authorized. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramAuthorizedAmount1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount remaining of a stock repurchase plan authorized. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramRemainingAuthorizedRepurchaseAmount1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Total cost of shares repurchased divided by the total number of shares repurchased. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
Name: | us-gaap_TreasuryStockAcquiredAverageCostPerShare
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares that have been repurchased during the period and are being held in treasury. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 29, 30 -Article 5 + Details
Name: | us-gaap_TreasuryStockSharesAcquired
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Article 3 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 30 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6405813&loc=d3e23239-112655 + Details
Name: | us-gaap_TreasuryStockValueAcquiredCostMethod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | us-gaap_ShareRepurchaseProgramAxis=cmg_AcceleratedShareRepurchaseTransactionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareRepurchaseProgramAxis=cmg_NotPartOfShareRepurchasePlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ShareRepurchaseProgramAxis=cmg_ShareRepurchaseProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |