{
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  "company_name": "ロック・フィールド",
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  "updated": "2026-10-27",
  "license": "© 2026 Yutaka Sugiura. All rights reserved.",
  "attribution": "The社史 (the-shashi.com) — https://the-shashi.com/tse/2910/",
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        "有価証券報告書"
      ],
      "extraction": "EDINET の XBRL から機械抽出（概ね 2008 年 3 月期以降）",
      "caveat": "連結/単体と会計基準は行ごとの consolidation / accounting_standard を参照。金額の単位は unit 列に従う"
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      "extraction": "EDINET の XBRL から機械抽出（概ね 2008 年 3 月期以降）",
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    }
  },
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      "unit": "百万円",
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      "net_profit_jp": "親会社株主に帰属する当期純利益"
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      "period": "2015/4",
      "unit": "百万円",
      "accounting_standard": "JGAAP",
      "consolidation": "連結",
      "区分": "連結",
      "科目": "減損損失",
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      "unit": "百万円",
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      "unit": "百万円",
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      "unit": "百万円",
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      "科目": "減損損失",
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      "unit": "百万円",
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      "unit": "百万円",
      "accounting_standard": "JGAAP",
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