2.4.0.8 HtmlAndXml 18 85 1 true 17 0 false 4 false true R1.htm 010000 - Document - Risk/Return Summary {Unlabeled} Sheet http://xbrl.sec.gov/rr/role/RiskReturn Risk/Return Summary R1.xml false true R2.htm 010002 - Document - Delaware Select Growth Fund {Unlabeled} Sheet http://voyageuriii-20130828/role/BBBB Delaware Select Growth Fund R2.xml false true R3.htm 010003 - Document - Delaware Large Cap Core Fund {Unlabeled} Sheet http://voyageuriii-20130828/role/AAAA Delaware Large Cap Core Fund R3.xml false false R4.htm 020010 - Schedule - Shareholder Fees Sheet http://xbrl.sec.gov/rr/role/ShareholderFeesData Shareholder Fees R4.xml false false R7.htm 020020 - Schedule - Annual Fund Operating Expenses Sheet http://xbrl.sec.gov/rr/role/OperatingExpensesData Annual Fund Operating Expenses R7.xml false false R10.htm 020030 - Schedule - Expense Example {Transposed} Sheet http://xbrl.sec.gov/rr/role/ExpenseExample Expense Example R10.xml false false R13.htm 020040 - Schedule - Expense Example, No Redemption {Transposed} Sheet http://xbrl.sec.gov/rr/role/ExpenseExampleNoRedemption Expense Example, No Redemption R13.xml false false R16.htm 020050 - Schedule - Annual Total Returns Sheet http://xbrl.sec.gov/rr/role/BarChartData Annual Total Returns R16.xml false false R19.htm 020060 - Schedule - Average Annual Total Returns {Transposed} Sheet http://xbrl.sec.gov/rr/role/PerformanceTableData Average Annual Total Returns R19.xml false true R22.htm 030000 - Document - Risk/Return Detail {Unlabeled} Sheet http://xbrl.sec.gov/rr/role/RiskReturnDetail Risk/Return Detail R22.xml true false All Reports Book All Reports voyageuriii-20130828.xml voyageuriii-20130828.xsd voyageuriii-20130828_def.xml voyageuriii-20130828_lab.xml voyageuriii-20130828_pre.xml BarChart1.jpg BarChart2.jpg BarChart3.jpg BarChart4.jpg true true