{
 "symbol": "nsfjx",
 "name": "Natixis Funds Trust IV - Natixis Target Retirement 2045 Fund",
 "filing": {
  "accession": "0001193125-24-231773",
  "doc": "d804568dncsrs.htm",
  "period_end": "2024-07-31",
  "display": "Natixis Funds Trust IV  (CIK 0001095726)",
  "ciks": [
   "0001095726"
  ],
  "score": 32.783684
 },
 "how": "ticker",
 "n_bytes": 15209335,
 "verdict": "weak-match",
 "class": "Class A",
 "mean_rel_err": 0.5433,
 "nav_check": {
  "date": "2025-07-29",
  "official": 12.45,
  "local": 6.8436,
  "rel": 0.4503,
  "ok": false
 },
 "periods": [
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   "period": "current",
   "end": "2031-12-31",
   "official": 0.26,
   "local": 6.8446,
   "diff": -6.5846,
   "ok": false,
   "unbounded": false
  },
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   "period": "fy",
   "end": "2024-12-31",
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   "local": 1.225,
   "diff": -0.955,
   "ok": false,
   "unbounded": false
  },
  {
   "period": "fy",
   "end": "2023-12-31",
   "official": 0.27,
   "local": 0.6408,
   "diff": -0.3708,
   "ok": false,
   "unbounded": false
  },
  {
   "period": "fy",
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   "local": 0.7657,
   "diff": 0.0343,
   "ok": false,
   "unbounded": false
  },
  {
   "period": "fy",
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   "local": 1.7545,
   "diff": -1.3545,
   "ok": false,
   "unbounded": false
  },
  {
   "period": "fy",
   "end": "2020-12-31",
   "official": 2.22,
   "local": 4.0765,
   "diff": -1.8565,
   "ok": false,
   "unbounded": true
  }
 ],
 "other_classes": [
  "Class C",
  "Class N",
  "Class Y"
 ]
}