| **Summary of Significant Accounting Policies (Narrative) (Details) (USD $)** | 3 Months Ended | 6 Months Ended |
|------------------------------------------------------------------------------|----------------|----------------|
||
| Debt Instrument, Year of Maturity                                            |           |           | 2019 |   |
| Net Cash Provided By Used In Operating Activities, Originally Reported       | $ 29,300,000   | $ 34,600,000   |   | $ 171,300,000 |
| Net Cash Provided By Used In Operating Activities, Revised                   | 16,300,000     | 24,800,000     |   | 175,600,000 |
| Net Cash Provided By Used In Investing Activities, Originally Reported       | 46,700,000     | 35,700,000     |   | 73,600,000 |
| Net Cash Provided By Used In Investing Activities, Revised                   | 33,700,000     | 25,900,000     |   | 77,900,000 |
| Canyons Obligation [Member]                                                  |           |           |   |   |
| Debt Instrument, Fair Value Disclosure                                       |           |           | $ 309,093,000 |   |
| Debt Instrument, Year of Maturity                                            |           |           | 2063 |   |

| X                                                                                                                                                                                                                                                    |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Debt Instrument, Year of Maturity
+ References
No definition available.
+ Details**Name:**mtn_DebtInstrumentYearOfMaturity**Namespace Prefix:**mtn_**Data Type:**us-types:dateStringItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                            |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The originally reported net cash inflow or outflow from investing activity.
+ References
No definition available.
+ Details**Name:**mtn_NetCashProvidedByUsedInInvestingActivitiesOriginallyReported**Namespace Prefix:**mtn_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                     |
|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The revised net cash inflow or outflow from investing activity.
+ References
No definition available.
+ Details**Name:**mtn_NetCashProvidedByUsedInInvestingActivitiesRevised**Namespace Prefix:**mtn_**Data Type:**xbrli:monetaryItemType**Balance Type:**debit**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The originally reported net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities. While for technical reasons this element has no balance attribute, the default assumption is a debit balance consistent with its label.
+ References
No definition available.
+ Details**Name:**mtn_NetCashProvidedByUsedInOperatingActivitiesOriginallyReported**Namespace Prefix:**mtn_**Data Type:**xbrli:monetaryItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The revised net cash from (used in) all of the entity's operating activities, including those of discontinued operations, of the reporting entity. Operating activities generally involve producing and delivering goods and providing services. Operating activity cash flows include transactions, adjustments, and changes in value that are not defined as investing or financing activities. While for technical reasons this element has no balance attribute, the default assumption is a debit balance consistent with its label.
+ References
No definition available.
+ Details**Name:**mtn_NetCashProvidedByUsedInOperatingActivitiesRevised**Namespace Prefix:**mtn_**Data Type:**xbrli:monetaryItemType**Balance Type:**na**Period Type:**duration |
| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
This element represents the portion of the balance sheet assertion valued at fair value by the entity whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 10 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13433-108611Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=7491637&loc=d3e13476-108611
+ Details**Name:**us-gaap_DebtInstrumentFairValue**Namespace Prefix:**us-gaap_**Data Type:**xbrli:monetaryItemType**Balance Type:**credit**Period Type:**instant |