| **Fair Value Measurements (Details) (USD $)In Thousands, unless otherwise specified**                                | 9 Months Ended                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |                                                                                                                                                                                                                                                      |                                                                                                                                                                                                                                                      |
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| Business Combination, Contingent Consideration Arrangements, Description                                             | 42% of the amount by which EBITDA for the resort operations, as calculated under the lease, exceed approximately $35 million, as established at the transaction date, with such threshold amount subsequently increased annually by an inflation linked index and a 10% adjustment for any capital improvements or investments made under the lease by the Company (the "Contingent Consideration").                                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                                                                 |                                                                                                                                                                                                                                                 |   |
| Contingent Consideration, Key Assumptions for Valuation                                                              | The fair value of Contingent Consideration includes the resort operations of Park City in the calculation of EBITDA on which participating contingent payments are made, and increases the EBITDA threshold before which participating contingent payments are made equal to 10% of the purchase price paid by the Company, plus future capital expenditures.  The Company estimated the fair value of the Contingent Consideration payments using an option pricing valuation model. Key assumptions included a discount rate of 11.5%, volatility of 20.0%, and credit risk of 3.0%.  The model also incorporates assumptions for EBITDA and capital expenditures, which are unobservable inputs and thus are considered Level 3 inputs. |                                                                                                                                                                                                                                                 |                                                                                                                                                                                                                                                 |   |
| Contingent Consideration, Fair Value Disclosure                                                                      | $ 6,000mtn_ContingentConsiderationFairValueDisclosure                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      | $ 9,100mtn_ContingentConsiderationFairValueDisclosure                                                                                                                                                                                                | $ 10,500mtn_ContingentConsiderationFairValueDisclosure                                                                                                                                                                                               | $ 9,100mtn_ContingentConsiderationFairValueDisclosure |
| Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability | 4,500us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       | 0us-gaap_BusinessCombinationContingentConsiderationArrangementsChangeInAmountOfContingentConsiderationLiability1                                                                                                                                     |                                                                                                                                                                                                                                                 |   |
| Fair Value, Inputs, Level 3 [Member]                                                                                 |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                                                                 |                                                                                                                                                                                                                                                 |   |
| Contingent Consideration, Fair Value Disclosure                                                                      | 6,000mtn_ContingentConsiderationFairValueDisclosure/ us-gaap_FairValueByFairValueHierarchyLevelAxis= us-gaap_FairValueInputsLevel3Member                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   | 9,100mtn_ContingentConsiderationFairValueDisclosure/ us-gaap_FairValueByFairValueHierarchyLevelAxis= us-gaap_FairValueInputsLevel3Member                                                                                                             | 10,500mtn_ContingentConsiderationFairValueDisclosure/ us-gaap_FairValueByFairValueHierarchyLevelAxis= us-gaap_FairValueInputsLevel3Member                                                                                                            |   |
| Money Market [Member]                                                                                                |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                                                                 |                                                                                                                                                                                                                                                 |   |
| Cash equivalents measured at fair value                                                                              | 7,578us-gaap_CashAndCashEquivalentsFairValueDisclosure/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis= us-gaap_MoneyMarketFundsMember                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 | 78,851us-gaap_CashAndCashEquivalentsFairValueDisclosure/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis= us-gaap_MoneyMarketFundsMember                                                                                          | 9,022us-gaap_CashAndCashEquivalentsFairValueDisclosure/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis= us-gaap_MoneyMarketFundsMember                                                                                           |   |
| Money Market [Member] | Level 1 [Member]                                                                             |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                                                                 |                                                                                                                                                                                                                                                 |   |
| Cash equivalents measured at fair value                                                                              | 7,578us-gaap_CashAndCashEquivalentsFairValueDisclosure/ us-gaap_FairValueByFairValueHierarchyLevelAxis= us-gaap_FairValueInputsLevel1Member/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis= us-gaap_MoneyMarketFundsMember                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | 78,851us-gaap_CashAndCashEquivalentsFairValueDisclosure/ us-gaap_FairValueByFairValueHierarchyLevelAxis= us-gaap_FairValueInputsLevel1Member/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis= us-gaap_MoneyMarketFundsMember     | 9,022us-gaap_CashAndCashEquivalentsFairValueDisclosure/ us-gaap_FairValueByFairValueHierarchyLevelAxis= us-gaap_FairValueInputsLevel1Member/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis= us-gaap_MoneyMarketFundsMember      |   |
| Commercial Paper [Member]                                                                                            |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                                                                 |                                                                                                                                                                                                                                                 |   |
| Cash equivalents measured at fair value                                                                              | 2,401us-gaap_CashAndCashEquivalentsFairValueDisclosure/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis= us-gaap_CommercialPaperMember                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  | 630us-gaap_CashAndCashEquivalentsFairValueDisclosure/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis= us-gaap_CommercialPaperMember                                                                                              | 630us-gaap_CashAndCashEquivalentsFairValueDisclosure/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis= us-gaap_CommercialPaperMember                                                                                              |   |
| Commercial Paper [Member] | Level 2 [Member]                                                                         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                                                                 |                                                                                                                                                                                                                                                 |   |
| Cash equivalents measured at fair value                                                                              | 2,401us-gaap_CashAndCashEquivalentsFairValueDisclosure/ us-gaap_FairValueByFairValueHierarchyLevelAxis= us-gaap_FairValueInputsLevel2Member/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis= us-gaap_CommercialPaperMember                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | 630us-gaap_CashAndCashEquivalentsFairValueDisclosure/ us-gaap_FairValueByFairValueHierarchyLevelAxis= us-gaap_FairValueInputsLevel2Member/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis= us-gaap_CommercialPaperMember         | 630us-gaap_CashAndCashEquivalentsFairValueDisclosure/ us-gaap_FairValueByFairValueHierarchyLevelAxis= us-gaap_FairValueInputsLevel2Member/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis= us-gaap_CommercialPaperMember         |   |
| Certificates of Deposit [Member]                                                                                     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                                                                 |                                                                                                                                                                                                                                                 |   |
| Cash equivalents measured at fair value                                                                              | 2,651us-gaap_CashAndCashEquivalentsFairValueDisclosure/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis= us-gaap_CertificatesOfDepositMember                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            | 630us-gaap_CashAndCashEquivalentsFairValueDisclosure/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis= us-gaap_CertificatesOfDepositMember                                                                                        | 880us-gaap_CashAndCashEquivalentsFairValueDisclosure/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis= us-gaap_CertificatesOfDepositMember                                                                                        |   |
| Certificates of Deposit [Member] | Level 2 [Member]                                                                  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |                                                                                                                                                                                                                                                 |                                                                                                                                                                                                                                                 |   |
| Cash equivalents measured at fair value                                                                              | $ 2,651us-gaap_CashAndCashEquivalentsFairValueDisclosure/ us-gaap_FairValueByFairValueHierarchyLevelAxis= us-gaap_FairValueInputsLevel2Member/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis= us-gaap_CertificatesOfDepositMember                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     | $ 630us-gaap_CashAndCashEquivalentsFairValueDisclosure/ us-gaap_FairValueByFairValueHierarchyLevelAxis= us-gaap_FairValueInputsLevel2Member/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis= us-gaap_CertificatesOfDepositMember | $ 880us-gaap_CashAndCashEquivalentsFairValueDisclosure/ us-gaap_FairValueByFairValueHierarchyLevelAxis= us-gaap_FairValueInputsLevel2Member/ us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis= us-gaap_CertificatesOfDepositMember |   |

| X                                                                                                                                                                                                                                                                               |
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| - Definition
Fair Value of Contingent Consideration Liability
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                     |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The key inputs of the arrangement and market participant assumptions considered when developing the assumptions used to determine the fair value of the arrangement.
+ References
No definition available.
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
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| - Definition
Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e7008-128479
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
For contingent consideration arrangements recognized in connection with a business combination, this element represents a description of such arrangements.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
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| - Definition
Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash -URI http://asc.fasb.org/extlink&oid=6506951Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Cash Equivalents -URI http://asc.fasb.org/extlink&oid=6507016
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