<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xml:lang="en-US"
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2020-01-31"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="odc-20220131.xsd" xlink:type="simple"/>
    <context id="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000074046</identifier>
        </entity>
        <period>
            <startDate>2022-01-31</startDate>
            <endDate>2022-01-31</endDate>
        </period>
    </context>
    <dei:EntityCentralIndexKey
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY180L2ZyYWc6MGQ5ODU5MTJhZjI2NDY3ZGEyOTNhZGNhYWM4Njc5ZWYvdGFibGU6OTE4ZDQ0NjZiNmE2NGM2OGEyMzI3OTIyZjc1M2Q2MDkvdGFibGVyYW5nZTo5MThkNDQ2NmI2YTY0YzY4YTIzMjc5MjJmNzUzZDYwOV8zLTEtMS0xLTI0Mjkx_a97054f3-a6c3-4bcc-a880-4b85ad4c122d">0000074046</dei:EntityCentralIndexKey>
    <dei:AmendmentFlag
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY180L2ZyYWc6MGQ5ODU5MTJhZjI2NDY3ZGEyOTNhZGNhYWM4Njc5ZWYvdGFibGU6OTE4ZDQ0NjZiNmE2NGM2OGEyMzI3OTIyZjc1M2Q2MDkvdGFibGVyYW5nZTo5MThkNDQ2NmI2YTY0YzY4YTIzMjc5MjJmNzUzZDYwOV80LTEtMS0xLTI0Mjkx_459183e1-84ce-454c-96a8-12c03d137cc6">false</dei:AmendmentFlag>
    <dei:DocumentType
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY18xL2ZyYWc6NmNiYTRiMDJiNTU5NDU3NDgyNjA3NTY5YmY4ZjYzZGMvdGV4dHJlZ2lvbjo2Y2JhNGIwMmI1NTk0NTc0ODI2MDc1NjliZjhmNjNkY18xNjYz_ca51081f-50db-4751-b9a8-fdbd95c6b839">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY18xL2ZyYWc6NmNiYTRiMDJiNTU5NDU3NDgyNjA3NTY5YmY4ZjYzZGMvdGFibGU6YzdiN2Q1MWY1YzBjNDJjOGIzNjc5OThjMmZhOGYwODYvdGFibGVyYW5nZTpjN2I3ZDUxZjVjMGM0MmM4YjM2Nzk5OGMyZmE4ZjA4Nl8wLTEtMS0xLTI0Mjkx_fba68587-8fb3-471b-9f12-675588738bc2">2022-01-31</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY18xL2ZyYWc6NmNiYTRiMDJiNTU5NDU3NDgyNjA3NTY5YmY4ZjYzZGMvdGV4dHJlZ2lvbjo2Y2JhNGIwMmI1NTk0NTc0ODI2MDc1NjliZjhmNjNkY18xNjU2_61693317-e518-4a63-a183-b460c049f8f5">OIL-DRI CORPORATION OF AMERICA</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY18xL2ZyYWc6NmNiYTRiMDJiNTU5NDU3NDgyNjA3NTY5YmY4ZjYzZGMvdGV4dHJlZ2lvbjo2Y2JhNGIwMmI1NTk0NTc0ODI2MDc1NjliZjhmNjNkY18xNjU3_477c4f82-8fd5-4ba6-8a6b-c7df463421eb">DE</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY18xL2ZyYWc6NmNiYTRiMDJiNTU5NDU3NDgyNjA3NTY5YmY4ZjYzZGMvdGV4dHJlZ2lvbjo2Y2JhNGIwMmI1NTk0NTc0ODI2MDc1NjliZjhmNjNkY18xNjU4_2b0bb4ce-2571-48b4-9c39-f8937481f1ee">001-12622</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY18xL2ZyYWc6NmNiYTRiMDJiNTU5NDU3NDgyNjA3NTY5YmY4ZjYzZGMvdGV4dHJlZ2lvbjo2Y2JhNGIwMmI1NTk0NTc0ODI2MDc1NjliZjhmNjNkY18xNjY0_b6d67f6f-527e-4abc-b6ce-f366f4104e83">36-2048898</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY18xL2ZyYWc6NmNiYTRiMDJiNTU5NDU3NDgyNjA3NTY5YmY4ZjYzZGMvdGV4dHJlZ2lvbjo2Y2JhNGIwMmI1NTk0NTc0ODI2MDc1NjliZjhmNjNkY18xNjU5_100efec9-0ace-487c-91e9-99401f2dca81">410 North Michigan Avenue</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY18xL2ZyYWc6NmNiYTRiMDJiNTU5NDU3NDgyNjA3NTY5YmY4ZjYzZGMvdGV4dHJlZ2lvbjo2Y2JhNGIwMmI1NTk0NTc0ODI2MDc1NjliZjhmNjNkY18xNjYw_889462ab-cf7f-4a7b-b39a-949c7924d354">Suite 400</dei:EntityAddressAddressLine2>
    <dei:EntityAddressPostalZipCode
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY18xL2ZyYWc6NmNiYTRiMDJiNTU5NDU3NDgyNjA3NTY5YmY4ZjYzZGMvdGV4dHJlZ2lvbjo2Y2JhNGIwMmI1NTk0NTc0ODI2MDc1NjliZjhmNjNkY18xNjY1_244009b0-c2ec-45ed-8ae5-3f3ec0a9e46e">60611-4213</dei:EntityAddressPostalZipCode>
    <dei:EntityAddressCityOrTown
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY18xL2ZyYWc6NmNiYTRiMDJiNTU5NDU3NDgyNjA3NTY5YmY4ZjYzZGMvdGV4dHJlZ2lvbjo2Y2JhNGIwMmI1NTk0NTc0ODI2MDc1NjliZjhmNjNkY18xNjYx_321e3dd9-9470-431a-a032-49043c05da11">Chicago</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY18xL2ZyYWc6NmNiYTRiMDJiNTU5NDU3NDgyNjA3NTY5YmY4ZjYzZGMvdGV4dHJlZ2lvbjo2Y2JhNGIwMmI1NTk0NTc0ODI2MDc1NjliZjhmNjNkY18xNjY2_7fee8478-1f39-4a62-8558-1b7705988e9d">IL</dei:EntityAddressStateOrProvince>
    <dei:CityAreaCode
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY18xL2ZyYWc6NmNiYTRiMDJiNTU5NDU3NDgyNjA3NTY5YmY4ZjYzZGMvdGV4dHJlZ2lvbjo2Y2JhNGIwMmI1NTk0NTc0ODI2MDc1NjliZjhmNjNkY18xNjY3_51fb230c-8abb-4d49-a3ab-5174ad2d3675">312</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY18xL2ZyYWc6NmNiYTRiMDJiNTU5NDU3NDgyNjA3NTY5YmY4ZjYzZGMvdGV4dHJlZ2lvbjo2Y2JhNGIwMmI1NTk0NTc0ODI2MDc1NjliZjhmNjNkY18xNjY4_e294cbbf-6d46-49e1-b697-d1ec2b4deafb">321-1515</dei:LocalPhoneNumber>
    <dei:WrittenCommunications
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY18xL2ZyYWc6NmNiYTRiMDJiNTU5NDU3NDgyNjA3NTY5YmY4ZjYzZGMvdGFibGU6OWFhYjA4ZjQwZDQ3NDg0YmEzNDUxMWM1MDEwYWI2NTgvdGFibGVyYW5nZTo5YWFiMDhmNDBkNDc0ODRiYTM0NTExYzUwMTBhYjY1OF8wLTEtMS0xLTI0Mjkx_b5733f69-bcc3-4be9-b8cb-74a72cdad7a2">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY18xL2ZyYWc6NmNiYTRiMDJiNTU5NDU3NDgyNjA3NTY5YmY4ZjYzZGMvdGFibGU6NjIxY2ZkODQ3MDgzNGM1YWFiYzY0YjFhMTYzNjdlMWMvdGFibGVyYW5nZTo2MjFjZmQ4NDcwODM0YzVhYWJjNjRiMWExNjM2N2UxY18wLTEtMS0xLTI0Mjkx_af518de0-7f8b-4e4b-bc61-f8692e38926a">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY18xL2ZyYWc6NmNiYTRiMDJiNTU5NDU3NDgyNjA3NTY5YmY4ZjYzZGMvdGFibGU6OWQ4OTIzYzJlNmJjNGZiNDgyMjZmNGUzZWJkZDZhZWEvdGFibGVyYW5nZTo5ZDg5MjNjMmU2YmM0ZmI0ODIyNmY0ZTNlYmRkNmFlYV8wLTEtMS0xLTI0Mjkx_b018fa57-8961-49be-a1ef-b9a6e91ad57b">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY18xL2ZyYWc6NmNiYTRiMDJiNTU5NDU3NDgyNjA3NTY5YmY4ZjYzZGMvdGFibGU6ZWU2OTY4YWU1MDRlNDY3MWEzOGRmZGQxNzI5YzVjYTQvdGFibGVyYW5nZTplZTY5NjhhZTUwNGU0NjcxYTM4ZGZkZDE3MjljNWNhNF8wLTEtMS0xLTI0Mjkx_340d11a9-3f36-4ecd-9d07-ce7180f4ffd5">false</dei:PreCommencementIssuerTenderOffer>
    <dei:EntityEmergingGrowthCompany
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY18xL2ZyYWc6NmNiYTRiMDJiNTU5NDU3NDgyNjA3NTY5YmY4ZjYzZGMvdGV4dHJlZ2lvbjo2Y2JhNGIwMmI1NTk0NTc0ODI2MDc1NjliZjhmNjNkY18xNjYy_bd45dae5-36c6-4e9c-804d-7f17d6940a92">false</dei:EntityEmergingGrowthCompany>
    <dei:Security12bTitle
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY18xL2ZyYWc6NmNiYTRiMDJiNTU5NDU3NDgyNjA3NTY5YmY4ZjYzZGMvdGFibGU6ZGRhYmM2MDc2ODkwNDgwOTg3MTA5Mzc0MDNjOTQ0ZTEvdGFibGVyYW5nZTpkZGFiYzYwNzY4OTA0ODA5ODcxMDkzNzQwM2M5NDRlMV8xLTAtMS0xLTI0Mjkx_8cf49b6d-b355-42f4-9b38-5596b4324138">Common Stock, par value $0.10 per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY18xL2ZyYWc6NmNiYTRiMDJiNTU5NDU3NDgyNjA3NTY5YmY4ZjYzZGMvdGFibGU6ZGRhYmM2MDc2ODkwNDgwOTg3MTA5Mzc0MDNjOTQ0ZTEvdGFibGVyYW5nZTpkZGFiYzYwNzY4OTA0ODA5ODcxMDkzNzQwM2M5NDRlMV8xLTEtMS0xLTI0Mjkx_00947577-0cff-41fa-ac7a-f6c823edc5bd">ODC</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="i10c735d0ebd749fb85dd41d74692e10f_D20220131-20220131"
      id="id3VybDovL2RvY3MudjEvZG9jOmQyNTRjZjVkZmUyYTQ2YmQ4NTMxNWJlNmJjZWQ1NjJjL3NlYzpkMjU0Y2Y1ZGZlMmE0NmJkODUzMTViZTZiY2VkNTYyY18xL2ZyYWc6NmNiYTRiMDJiNTU5NDU3NDgyNjA3NTY5YmY4ZjYzZGMvdGFibGU6ZGRhYmM2MDc2ODkwNDgwOTg3MTA5Mzc0MDNjOTQ0ZTEvdGFibGVyYW5nZTpkZGFiYzYwNzY4OTA0ODA5ODcxMDkzNzQwM2M5NDRlMV8xLTItMS0xLTI0Mjkx_d720768e-95d3-4e26-b52a-9c241097176e">NYSE</dei:SecurityExchangeName>
</xbrl>
