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Commitments and Contingencies (Narrative) (Details) (USD $)	9 Months Ended
	Apr. 30, 2015	Jul. 31, 2014	Apr. 30, 2014
Holland Creek Metropolitan District [Member]
Credit-enhanced bonds issued amount	$ 8,000,000mtn_DebtInstrumentThirdPartyCreditEnhancements / dei_LegalEntityAxis = mtn_HollandCreekMetropolitanDistrictMember
Amount outstanding in letters of credit	8,100,000us-gaap_LettersOfCreditOutstandingAmount / dei_LegalEntityAxis = mtn_HollandCreekMetropolitanDistrictMember
Red Sky Ranch Metropolitan District [Member]
Other long-term liabilities	1,800,000us-gaap_OtherLongTermDebt / dei_LegalEntityAxis = mtn_RedSkyRanchMetropolitanDistrictMember	1,800,000us-gaap_OtherLongTermDebt / dei_LegalEntityAxis = mtn_RedSkyRanchMetropolitanDistrictMember	1,800,000us-gaap_OtherLongTermDebt / dei_LegalEntityAxis = mtn_RedSkyRanchMetropolitanDistrictMember
Estimated cessation date of capital improvement fee payment obligation	Jul. 31, 2029
Various Other [Member]
Amount outstanding in letters of credit	64,300,000us-gaap_LettersOfCreditOutstandingAmount / us-gaap_LossContingenciesByNatureOfContingencyAxis = mtn_VariousOtherMember
Employee Housing Bonds [Member]
Amount outstanding in letters of credit	53,400,000us-gaap_LettersOfCreditOutstandingAmount / us-gaap_LossContingenciesByNatureOfContingencyAxis = mtn_EmployeeHousingBondsMember
Workers' Compensation and General Liability Related to Construction and Development Activities [Member]
Amount outstanding in letters of credit	$ 10,900,000us-gaap_LettersOfCreditOutstandingAmount / us-gaap_LossContingenciesByNatureOfContingencyAxis = mtn_WorkersCompensationAndGeneralLiabilityRelatedToConstructionAndDevelopmentActivitiesMember

X

- Definition

Debt Instrument, Third Party Credit Enhancements

+ References

No definition available.

+ Details

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Namespace Prefix:	mtn_
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Balance Type:	debit
Period Type:	duration

X

- Definition

Estimated Cessation Date Of Capital Improvement Fee Payments

+ References

No definition available.

+ Details

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Balance Type:	na
Period Type:	duration

X

- Definition

The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Including both current and noncurrent portions, carrying amount as of the balance sheet date of other forms of debt not elsewhere specified in the taxonomy with initial maturities beyond one year or beyond the normal operating cycle, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 20, 22

-Article 5

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X

- Details

Name:	dei_LegalEntityAxis=mtn_RedSkyRanchMetropolitanDistrictMember
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X

- Details

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- Details

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