{
 "symbol": "nsfmx",
 "name": "Natixis Funds Trust IV - Sustainable Future 2060 Fund",
 "filing": {
  "accession": "0001193125-24-231773",
  "doc": "d804568dncsrs.htm",
  "period_end": "2024-07-31",
  "display": "Natixis Funds Trust IV  (CIK 0001095726)",
  "ciks": [
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  ],
  "score": 25.066257
 },
 "how": "ticker",
 "n_bytes": 15209335,
 "verdict": "weak-match",
 "class": "Class A",
 "mean_rel_err": 0.5473,
 "nav_check": {
  "date": "2025-07-29",
  "official": 12.45,
  "local": 7.3173,
  "rel": 0.4123,
  "ok": false
 },
 "periods": [
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   "period": "current",
   "end": "2031-12-31",
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   "local": 6.1331,
   "diff": -5.8731,
   "ok": false,
   "unbounded": false
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   "period": "fy",
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   "diff": -0.9938,
   "ok": false,
   "unbounded": false
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  {
   "period": "fy",
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   "local": 0.4997,
   "diff": -0.2297,
   "ok": false,
   "unbounded": false
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  {
   "period": "fy",
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   "local": 0.6956,
   "diff": 0.1044,
   "ok": false,
   "unbounded": false
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   "period": "fy",
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   "local": 2.1365,
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   "ok": false,
   "unbounded": false
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  {
   "period": "fy",
   "end": "2020-12-31",
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   "local": 5.1903,
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   "ok": false,
   "unbounded": true
  }
 ],
 "other_classes": [
  "Class C",
  "Class N",
  "Class Y"
 ]
}