XML 232 R66.htm IDEA: XBRL DOCUMENT v2.4.1.9
Expense Example, No Redemption (Vanguard Small-Cap Value Index Fund Institutional)
Vanguard Small-Cap Value Index Fund
Vanguard Small-Cap Value Index Fund - Institutional Shares
1/1/2014 - 12/31/2014
USD ($)
Expense Example, No Redemption:  
1 YEAR 8rr_ExpenseExampleNoRedemptionYear01
/ dei_LegalEntityAxis
= vanguard_S000002847Member
/ rr_ProspectusShareClassAxis
= vanguard_C000007803Member
3 YEAR 26rr_ExpenseExampleNoRedemptionYear03
/ dei_LegalEntityAxis
= vanguard_S000002847Member
/ rr_ProspectusShareClassAxis
= vanguard_C000007803Member
5 YEAR 45rr_ExpenseExampleNoRedemptionYear05
/ dei_LegalEntityAxis
= vanguard_S000002847Member
/ rr_ProspectusShareClassAxis
= vanguard_C000007803Member
10 YEAR 103rr_ExpenseExampleNoRedemptionYear10
/ dei_LegalEntityAxis
= vanguard_S000002847Member
/ rr_ProspectusShareClassAxis
= vanguard_C000007803Member