3.25.3 html 6422 43 1 false 124 0 false 6 false false R1.htm 030000 - Disclosure - Form N-CSR Cover Sheet http://xbrl.sec.gov/oef/role/NcsrCover Form N-CSR Cover Cover 1 false false R2.htm 030001 - Disclosure - Shareholder Report Sheet http://xbrl.sec.gov/oef/role/ShareholderReport Shareholder Report Notes 2 false false R3.htm 040010 - Disclosure - Shareholder Report, Line Graph (Details) Sheet http://xbrl.sec.gov/oef/role/ShareholderReportLineGraphDetails Shareholder Report, Line Graph (Details) Details 3 false false R4.htm 040015 - Disclosure - Shareholder Report, Average Annual Return (Details) Sheet http://xbrl.sec.gov/oef/role/ShareholderReportAverageAnnualReturnDetails Shareholder Report, Average Annual Return (Details) Details 4 false false R5.htm 040020 - Disclosure - Shareholder Report, Holdings (Details) Sheet http://xbrl.sec.gov/oef/role/ShareholderReportHoldingsDetails Shareholder Report, Holdings (Details) Details 5 false false All Reports Book All Reports d91303dncsr.htm natixis-20250930.xsd g91303i0610f892ff4d9f3eac44.jpg g91303i083bff26172cfb3d8b4b.jpg g91303i0f08910ba6c3713f5b71.jpg g91303i10b3725b058a1e810a05.jpg g91303i111d5592aaf9f0596b1d.jpg g91303i13c91a4f4608afb3f36b.jpg g91303i190f55b48687752a4693.jpg g91303i1ad8c0660f7e8b8e86be.jpg g91303i1fab314be5356171369e.jpg g91303i21dbf27331562c353f46.jpg g91303i2c65a7ebf3b0a1ebb1f9.jpg g91303i31cbfb73efd1e4dceb91.jpg g91303i331fccbd715db0894dac.jpg g91303i381770442d8aca4f404d.jpg g91303i3d3b4fe464cd9ce2850e.jpg g91303i3f127e6e938fa794c614.jpg g91303i404abecc773bf2ae29ec.jpg g91303i429ee8343f246584f667.jpg g91303i4372c0594b84172e9482.jpg g91303i5271bd06451a64494ea9.jpg g91303i5451e2bfa6221a6d5e11.jpg g91303i5b62bf96f7f49bfe0492.jpg g91303i62f18f727133bca40ea9.jpg g91303i6a485137774d929e5c69.jpg g91303i6dabdd276ac335bad4b5.jpg g91303i75440ddde9afba24e918.jpg g91303i79fa79d6c5e4c7eae96c.jpg g91303i7ea16e66d8dc5669edc6.jpg g91303i81a8f68cf70626922fb2.jpg g91303i85876569d00d2bf2001e.jpg g91303i8a504a74895df2470e47.jpg g91303i98c67b4cf9ed6229b5ec.jpg g91303i9a51724025d90157811c.jpg g91303i9c45fdaa7f77502c16c8.jpg g91303i9f112ddd63369f8cdf49.jpg g91303iaa88e68345c1bd5c8a80.jpg g91303iac1aed8915667ecd85e8.jpg g91303iafc03c3dab07ef8cb042.jpg g91303ib271452757c80cb6ee7a.jpg g91303ib90d53d727e147ece082.jpg g91303ibe304a21f6e1c6e98d74.jpg g91303ibe83d7d49338b5bc25a6.jpg g91303ibf988573562b74248add.jpg g91303ic09657607845ea8a5e05.jpg g91303ic20d23b602e4fac4dad6.jpg g91303ic390f3bc16b3453462f3.jpg g91303ic84465219fb95a18bdaf.jpg g91303icc688648914b6a8c9000.jpg g91303id0cf9be1c5c497b0f94a.jpg g91303id0d4c37553f8c5fd5dc2.jpg g91303id0f1749ea58b22d304ae.jpg g91303id196dcdbc8090ff4d577.jpg g91303id2aed67b4719bfd2e3b3.jpg g91303id3369b7f643e8a9b1c10.jpg g91303id80c52028acd602ad8ee.jpg g91303idb05b1f385e51a5f1621.jpg g91303ieb8cb10b3a4f50a51cb5.jpg g91303iec870679eb1714f9f18e.jpg g91303ifeb32e5ebaec89a575f2.jpg g91303img12b6cc312.gif g91303img37868b1e1.gif g91303img49bdbbc01.gif g91303img4b586ffb3.gif g91303img69d70bfc1.gif g91303img7d0f08ae2.gif g91303img87be867e2.gif g91303img8affe54c2.gif g91303imgb7017ef63.gif g91303imgcfd19f361.gif g91303imgd919cbbf3.gif g91303imgdc3cd1a43.gif http://fasb.org/us-gaap/2024 http://xbrl.sec.gov/dei/2024 http://xbrl.sec.gov/oef/2024 false false