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Annual Fund Operating Expenses (Vanguard Target Retirement 2030 Fund Retail)
Vanguard Target Retirement 2030 Fund
Vanguard Target Retirement 2030 Fund - Investor Shares
10/1/2013 - 9/30/2014
Annual Fund Operating Expenses (Expenses that you pay each year as a percentage of the value of your investment)  
Management Fees none
12b-1 Distribution Fee none
Other Expenses none
Acquired Fund Fees and Expenses 0.17%rr_AcquiredFundFeesAndExpensesOverAssets
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Total Annual Fund Operating Expenses 0.17%rr_NetExpensesOverAssets
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