XML 16 R6.htm IDEA: XBRL DOCUMENT v2.4.1.9
Average Annual Total Returns (Vanguard Morgan Growth Fund Participant:)
Vanguard Morgan Growth Fund
Vanguard Morgan Growth Fund - Admiral Shares
10/1/2013 - 9/30/2014
Russell 3000 Growth Index
Vanguard Morgan Growth Fund
Vanguard Morgan Growth Fund - Admiral Shares
10/1/2013 - 9/30/2014
Average Annual Returns for Periods Ended December 31, 2014    
One Year 11.13%rr_AverageAnnualReturnYear01
/ dei_LegalEntityAxis
= vanguard_S000002871Member
/ rr_ProspectusShareClassAxis
= vanguard_C000007889Member		 12.44%rr_AverageAnnualReturnYear01
/ dei_LegalEntityAxis
= vanguard_S000002871Member
/ rr_PerformanceMeasureAxis
= vanguard_Russell3000GrowthIndexMember
/ rr_ProspectusShareClassAxis
= vanguard_C000007889Member
Five Years 14.93%rr_AverageAnnualReturnYear05
/ dei_LegalEntityAxis
= vanguard_S000002871Member
/ rr_ProspectusShareClassAxis
= vanguard_C000007889Member		 15.89%rr_AverageAnnualReturnYear05
/ dei_LegalEntityAxis
= vanguard_S000002871Member
/ rr_PerformanceMeasureAxis
= vanguard_Russell3000GrowthIndexMember
/ rr_ProspectusShareClassAxis
= vanguard_C000007889Member
Ten Years 8.07%rr_AverageAnnualReturnYear10
/ dei_LegalEntityAxis
= vanguard_S000002871Member
/ rr_ProspectusShareClassAxis
= vanguard_C000007889Member		 8.50%rr_AverageAnnualReturnYear10
/ dei_LegalEntityAxis
= vanguard_S000002871Member
/ rr_PerformanceMeasureAxis
= vanguard_Russell3000GrowthIndexMember
/ rr_ProspectusShareClassAxis
= vanguard_C000007889Member