2.4.0.82404403 - Disclosure - Fair Value Measurements (Unobservable Input Reconciliation) (Details)truefalseIn Millions, unless otherwise specifiedfalse1false USDfalsefalse$D2012Q4YTD_us-gaap_FairValueByFairValueHierarchyLevelAxis_us-gaap_FairValueInputsLevel3Member_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_us-gaap_AuctionRateSecuritiesMemberhttp://www.sec.gov/CIK0001045829duration2011-07-01T00:00:002012-06-30T00:00:00usdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse1false USDtruefalse$D2012Q4YTD_us-gaap_FairValueByFairValueHierarchyLevelAxis_us-gaap_FairValueInputsLevel3Member_us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxis_us-gaap_AuctionRateSecuritiesMemberhttp://www.sec.gov/CIK0001045829duration2011-07-01T00:00:002012-06-30T00:00:00falsefalseLevel 3 [Member]us-gaap_FairValueByFairValueHierarchyLevelAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_FairValueInputsLevel3Memberus-gaap_FairValueByFairValueHierarchyLevelAxisexplicitMemberfalsefalseAuction rate securities [Member]us-gaap_MajorTypesOfDebtAndEquitySecuritiesAxisxbrldihttp://xbrl.org/2006/xbrldius-gaap_AuctionRateSecuritiesMemberus-gaap_MajorTypesOfDebtAndEquitySecuritiesAxisexplicitMemberusdStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Level 3 [Member] | Auction rate securities [Member]2true 4us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationCalculationRollForwardus-gaap_truenadurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1falsefalsefalse00falsefalsefalsexbrli:stringItemTypestringfalse0Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]3false 5us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValueus-gaap_truedebitinstantfalsefalsefalsefalsefalsetruefalsefalseperiodStartLabel1truefalsefalse88000008.8USD$falsetruefalsexbrli:monetaryItemTypemonetaryThis element represents an asset measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Balance, beginning4false 5vhs_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRedemptionsvhs_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsetruenegatedTerseLabel1truefalsefalse-10000000-10.0USD$falsefalsefalsexbrli:monetaryItemTypemonetaryRedemptions that have taken place during the period in relation to assets measured at fair value and categorized within Level 3 of the fair value hierarchy.No definition available.false2Redemptions5false 5vhs_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetRealizedGainLossIncludedInEarningsBeforeTaxvhs_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsetruenegatedTerseLabel1truefalsefalse00USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of realized gain (loss) recognized in earnings, before tax, arising from assets measured at fair value on a recurring basis using unobservable inputs (level 3).No definition available.false2Realized gain on redemptions, pre tax6false 5vhs_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetFairValueGainLossBeforeTaxvhs_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseterseLabel1truefalsefalse12000001.2USD$falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of fair value gain (loss), before tax, recognized in other comprehensive income, arising from assets measured at fair value on a recurring basis using unobservable inputs (level 3).No definition available.false2Change in fair value, pre tax7false 5us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationRecurringBasisAssetValueus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsetruefalseperiodEndLabel1truefalsefalse00USD$falsetruefalsexbrli:monetaryItemTypemonetaryThis element represents an asset measured at fair value using significant unobservable inputs (Level 3) which is required for reconciliation purposes of beginning and ending balances.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 157 -Paragraph 32 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. false2Balance, endingfalseFair Value Measurements (Unobservable Input Reconciliation) (Details) (Level 3 [Member], Auction rate securities [Member], USD $)HundredThousandsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.vanguardhealth.com/role/FairValueMeasurementsUnobservableInputReconciliationDetails17