<?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/2021"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="penn-20220817.xsd" xlink:type="simple"/>
    <context id="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000921738</identifier>
        </entity>
        <period>
            <startDate>2022-08-17</startDate>
            <endDate>2022-08-17</endDate>
        </period>
    </context>
    <dei:EntityCentralIndexKey
      contextRef="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817"
      id="id3VybDovL2RvY3MudjEvZG9jOjNlZTY1ZGQ0OWE2OTQxM2Y5ZjAyNWNiMWY1ZmNjOGU1L3NlYzozZWU2NWRkNDlhNjk0MTNmOWYwMjVjYjFmNWZjYzhlNV80L2ZyYWc6NTU5N2UwNDFiZTFmNGU4OWJkNjIxNTBjYWJmYTJmZDYvdGFibGU6YTkxODRmM2E0MTliNDhjYWFlNWQyYTY4NDM1ZjRhODUvdGFibGVyYW5nZTphOTE4NGYzYTQxOWI0OGNhYWU1ZDJhNjg0MzVmNGE4NV8yLTEtMS0xLTE1ODYzOQ_6688a9d4-b27a-4049-b6c2-72ba02b85450">0000921738</dei:EntityCentralIndexKey>
    <dei:AmendmentFlag
      contextRef="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817"
      id="id3VybDovL2RvY3MudjEvZG9jOjNlZTY1ZGQ0OWE2OTQxM2Y5ZjAyNWNiMWY1ZmNjOGU1L3NlYzozZWU2NWRkNDlhNjk0MTNmOWYwMjVjYjFmNWZjYzhlNV80L2ZyYWc6NTU5N2UwNDFiZTFmNGU4OWJkNjIxNTBjYWJmYTJmZDYvdGFibGU6YTkxODRmM2E0MTliNDhjYWFlNWQyYTY4NDM1ZjRhODUvdGFibGVyYW5nZTphOTE4NGYzYTQxOWI0OGNhYWU1ZDJhNjg0MzVmNGE4NV8zLTEtMS0xLTE1ODYzOQ_bfe8f97e-b4bf-4682-8687-9350c641b15d">false</dei:AmendmentFlag>
    <dei:DocumentType
      contextRef="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817"
      id="id3VybDovL2RvY3MudjEvZG9jOjNlZTY1ZGQ0OWE2OTQxM2Y5ZjAyNWNiMWY1ZmNjOGU1L3NlYzozZWU2NWRkNDlhNjk0MTNmOWYwMjVjYjFmNWZjYzhlNV8xL2ZyYWc6ODFjMmZiMWQ1MjkzNDhlOWI3YjU0NWM4ZjRjNGVlMDgvdGV4dHJlZ2lvbjo4MWMyZmIxZDUyOTM0OGU5YjdiNTQ1YzhmNGM0ZWUwOF8yMTA2_32cfe1cb-e2bb-4813-9f8e-ff485f00057b">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate
      contextRef="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817"
      id="id3VybDovL2RvY3MudjEvZG9jOjNlZTY1ZGQ0OWE2OTQxM2Y5ZjAyNWNiMWY1ZmNjOGU1L3NlYzozZWU2NWRkNDlhNjk0MTNmOWYwMjVjYjFmNWZjYzhlNV8xL2ZyYWc6ODFjMmZiMWQ1MjkzNDhlOWI3YjU0NWM4ZjRjNGVlMDgvdGV4dHJlZ2lvbjo4MWMyZmIxZDUyOTM0OGU5YjdiNTQ1YzhmNGM0ZWUwOF81NDk3NTU4MTYwMjU_b2b071b0-4cc9-4e23-962b-1ee0665a8086">2022-08-17</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName
      contextRef="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817"
      id="id3VybDovL2RvY3MudjEvZG9jOjNlZTY1ZGQ0OWE2OTQxM2Y5ZjAyNWNiMWY1ZmNjOGU1L3NlYzozZWU2NWRkNDlhNjk0MTNmOWYwMjVjYjFmNWZjYzhlNV8xL2ZyYWc6ODFjMmZiMWQ1MjkzNDhlOWI3YjU0NWM4ZjRjNGVlMDgvdGV4dHJlZ2lvbjo4MWMyZmIxZDUyOTM0OGU5YjdiNTQ1YzhmNGM0ZWUwOF8yMTA3_ca49f4da-7da4-458f-8f0a-d4099ae2b210">PENN Entertainment, Inc.</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817"
      id="id3VybDovL2RvY3MudjEvZG9jOjNlZTY1ZGQ0OWE2OTQxM2Y5ZjAyNWNiMWY1ZmNjOGU1L3NlYzozZWU2NWRkNDlhNjk0MTNmOWYwMjVjYjFmNWZjYzhlNV8xL2ZyYWc6ODFjMmZiMWQ1MjkzNDhlOWI3YjU0NWM4ZjRjNGVlMDgvdGFibGU6YzkxYWViYTkwNzcyNDJiNGE1ZmFjZTkzM2Q4ODZiNDEvdGFibGVyYW5nZTpjOTFhZWJhOTA3NzI0MmI0YTVmYWNlOTMzZDg4NmI0MV8wLTEtMS0xLTE1ODYzOQ_67f672ad-bcf7-4c6d-a615-69a9463488e6">PA</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber
      contextRef="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817"
      id="id3VybDovL2RvY3MudjEvZG9jOjNlZTY1ZGQ0OWE2OTQxM2Y5ZjAyNWNiMWY1ZmNjOGU1L3NlYzozZWU2NWRkNDlhNjk0MTNmOWYwMjVjYjFmNWZjYzhlNV8xL2ZyYWc6ODFjMmZiMWQ1MjkzNDhlOWI3YjU0NWM4ZjRjNGVlMDgvdGFibGU6YzkxYWViYTkwNzcyNDJiNGE1ZmFjZTkzM2Q4ODZiNDEvdGFibGVyYW5nZTpjOTFhZWJhOTA3NzI0MmI0YTVmYWNlOTMzZDg4NmI0MV8wLTMtMS0xLTE1ODYzOQ_c6513269-9d81-4a78-97f1-af57fb8dbad2">0-24206</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber
      contextRef="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817"
      id="id3VybDovL2RvY3MudjEvZG9jOjNlZTY1ZGQ0OWE2OTQxM2Y5ZjAyNWNiMWY1ZmNjOGU1L3NlYzozZWU2NWRkNDlhNjk0MTNmOWYwMjVjYjFmNWZjYzhlNV8xL2ZyYWc6ODFjMmZiMWQ1MjkzNDhlOWI3YjU0NWM4ZjRjNGVlMDgvdGFibGU6YzkxYWViYTkwNzcyNDJiNGE1ZmFjZTkzM2Q4ODZiNDEvdGFibGVyYW5nZTpjOTFhZWJhOTA3NzI0MmI0YTVmYWNlOTMzZDg4NmI0MV8wLTUtMS0xLTE1ODYzOQ_11dcfdd7-0118-4c2d-ba6d-2d2b8fe975c1">23-2234473</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817"
      id="id3VybDovL2RvY3MudjEvZG9jOjNlZTY1ZGQ0OWE2OTQxM2Y5ZjAyNWNiMWY1ZmNjOGU1L3NlYzozZWU2NWRkNDlhNjk0MTNmOWYwMjVjYjFmNWZjYzhlNV8xL2ZyYWc6ODFjMmZiMWQ1MjkzNDhlOWI3YjU0NWM4ZjRjNGVlMDgvdGV4dHJlZ2lvbjo4MWMyZmIxZDUyOTM0OGU5YjdiNTQ1YzhmNGM0ZWUwOF8yMTA4_9e68b662-a6be-44db-8dab-0f52f754a728">825 Berkshire Blvd., Suite 200</dei:EntityAddressAddressLine1>
    <dei:EntityAddressCityOrTown
      contextRef="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817"
      id="id3VybDovL2RvY3MudjEvZG9jOjNlZTY1ZGQ0OWE2OTQxM2Y5ZjAyNWNiMWY1ZmNjOGU1L3NlYzozZWU2NWRkNDlhNjk0MTNmOWYwMjVjYjFmNWZjYzhlNV8xL2ZyYWc6ODFjMmZiMWQ1MjkzNDhlOWI3YjU0NWM4ZjRjNGVlMDgvdGV4dHJlZ2lvbjo4MWMyZmIxZDUyOTM0OGU5YjdiNTQ1YzhmNGM0ZWUwOF8yMTA5_709cd705-f800-4bf2-b3ae-e9035b12c2e0">Wyomissing</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817"
      id="id3VybDovL2RvY3MudjEvZG9jOjNlZTY1ZGQ0OWE2OTQxM2Y5ZjAyNWNiMWY1ZmNjOGU1L3NlYzozZWU2NWRkNDlhNjk0MTNmOWYwMjVjYjFmNWZjYzhlNV8xL2ZyYWc6ODFjMmZiMWQ1MjkzNDhlOWI3YjU0NWM4ZjRjNGVlMDgvdGV4dHJlZ2lvbjo4MWMyZmIxZDUyOTM0OGU5YjdiNTQ1YzhmNGM0ZWUwOF8yMTE0_2f7bc61b-5e7f-4838-ba09-797f2855caf5">PA</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode
      contextRef="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817"
      id="id3VybDovL2RvY3MudjEvZG9jOjNlZTY1ZGQ0OWE2OTQxM2Y5ZjAyNWNiMWY1ZmNjOGU1L3NlYzozZWU2NWRkNDlhNjk0MTNmOWYwMjVjYjFmNWZjYzhlNV8xL2ZyYWc6ODFjMmZiMWQ1MjkzNDhlOWI3YjU0NWM4ZjRjNGVlMDgvdGV4dHJlZ2lvbjo4MWMyZmIxZDUyOTM0OGU5YjdiNTQ1YzhmNGM0ZWUwOF8yMTEw_83caa4b6-687a-446b-ac50-479897e68478">19610</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode
      contextRef="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817"
      id="id3VybDovL2RvY3MudjEvZG9jOjNlZTY1ZGQ0OWE2OTQxM2Y5ZjAyNWNiMWY1ZmNjOGU1L3NlYzozZWU2NWRkNDlhNjk0MTNmOWYwMjVjYjFmNWZjYzhlNV8xL2ZyYWc6ODFjMmZiMWQ1MjkzNDhlOWI3YjU0NWM4ZjRjNGVlMDgvdGV4dHJlZ2lvbjo4MWMyZmIxZDUyOTM0OGU5YjdiNTQ1YzhmNGM0ZWUwOF8yMTEx_d907bf05-8277-49b2-8bf8-7581fb4e13b0">610</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817"
      id="id3VybDovL2RvY3MudjEvZG9jOjNlZTY1ZGQ0OWE2OTQxM2Y5ZjAyNWNiMWY1ZmNjOGU1L3NlYzozZWU2NWRkNDlhNjk0MTNmOWYwMjVjYjFmNWZjYzhlNV8xL2ZyYWc6ODFjMmZiMWQ1MjkzNDhlOWI3YjU0NWM4ZjRjNGVlMDgvdGV4dHJlZ2lvbjo4MWMyZmIxZDUyOTM0OGU5YjdiNTQ1YzhmNGM0ZWUwOF8yMTEy_3c5add56-be72-4408-9156-1b36a96a1a5a">373-2400</dei:LocalPhoneNumber>
    <dei:WrittenCommunications
      contextRef="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817"
      id="id3VybDovL2RvY3MudjEvZG9jOjNlZTY1ZGQ0OWE2OTQxM2Y5ZjAyNWNiMWY1ZmNjOGU1L3NlYzozZWU2NWRkNDlhNjk0MTNmOWYwMjVjYjFmNWZjYzhlNV8xL2ZyYWc6ODFjMmZiMWQ1MjkzNDhlOWI3YjU0NWM4ZjRjNGVlMDgvdGV4dHJlZ2lvbjo4MWMyZmIxZDUyOTM0OGU5YjdiNTQ1YzhmNGM0ZWUwOF8yMTE1_4c4ea7c4-c39d-4753-9723-d7ea8ace671d">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817"
      id="id3VybDovL2RvY3MudjEvZG9jOjNlZTY1ZGQ0OWE2OTQxM2Y5ZjAyNWNiMWY1ZmNjOGU1L3NlYzozZWU2NWRkNDlhNjk0MTNmOWYwMjVjYjFmNWZjYzhlNV8xL2ZyYWc6ODFjMmZiMWQ1MjkzNDhlOWI3YjU0NWM4ZjRjNGVlMDgvdGV4dHJlZ2lvbjo4MWMyZmIxZDUyOTM0OGU5YjdiNTQ1YzhmNGM0ZWUwOF8yMTE2_be4d504d-5c1d-41c1-a23d-8160a379988c">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
      contextRef="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817"
      id="id3VybDovL2RvY3MudjEvZG9jOjNlZTY1ZGQ0OWE2OTQxM2Y5ZjAyNWNiMWY1ZmNjOGU1L3NlYzozZWU2NWRkNDlhNjk0MTNmOWYwMjVjYjFmNWZjYzhlNV8xL2ZyYWc6ODFjMmZiMWQ1MjkzNDhlOWI3YjU0NWM4ZjRjNGVlMDgvdGV4dHJlZ2lvbjo4MWMyZmIxZDUyOTM0OGU5YjdiNTQ1YzhmNGM0ZWUwOF8yMTE3_50811f35-ffe6-4924-bdb6-ba813509622f">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817"
      id="id3VybDovL2RvY3MudjEvZG9jOjNlZTY1ZGQ0OWE2OTQxM2Y5ZjAyNWNiMWY1ZmNjOGU1L3NlYzozZWU2NWRkNDlhNjk0MTNmOWYwMjVjYjFmNWZjYzhlNV8xL2ZyYWc6ODFjMmZiMWQ1MjkzNDhlOWI3YjU0NWM4ZjRjNGVlMDgvdGV4dHJlZ2lvbjo4MWMyZmIxZDUyOTM0OGU5YjdiNTQ1YzhmNGM0ZWUwOF8yMTE4_9d1f0d3c-38ca-4298-913d-65ad869883d1">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817"
      id="id3VybDovL2RvY3MudjEvZG9jOjNlZTY1ZGQ0OWE2OTQxM2Y5ZjAyNWNiMWY1ZmNjOGU1L3NlYzozZWU2NWRkNDlhNjk0MTNmOWYwMjVjYjFmNWZjYzhlNV8xL2ZyYWc6ODFjMmZiMWQ1MjkzNDhlOWI3YjU0NWM4ZjRjNGVlMDgvdGFibGU6ODRlZjlhODIxZmIyNGYyMWFkZTNhNWYyYzJlODcyMGIvdGFibGVyYW5nZTo4NGVmOWE4MjFmYjI0ZjIxYWRlM2E1ZjJjMmU4NzIwYl8xLTAtMS0xLTE1ODYzOQ_74f8dc55-1877-4fc5-90ec-50bb7d58dba7">Common Stock, $0.01 par value per share</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817"
      id="id3VybDovL2RvY3MudjEvZG9jOjNlZTY1ZGQ0OWE2OTQxM2Y5ZjAyNWNiMWY1ZmNjOGU1L3NlYzozZWU2NWRkNDlhNjk0MTNmOWYwMjVjYjFmNWZjYzhlNV8xL2ZyYWc6ODFjMmZiMWQ1MjkzNDhlOWI3YjU0NWM4ZjRjNGVlMDgvdGFibGU6ODRlZjlhODIxZmIyNGYyMWFkZTNhNWYyYzJlODcyMGIvdGFibGVyYW5nZTo4NGVmOWE4MjFmYjI0ZjIxYWRlM2E1ZjJjMmU4NzIwYl8xLTEtMS0xLTE1ODYzOQ_7b82f05d-c4e2-4c4c-85f0-0ae8980479ef">PENN</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817"
      id="id3VybDovL2RvY3MudjEvZG9jOjNlZTY1ZGQ0OWE2OTQxM2Y5ZjAyNWNiMWY1ZmNjOGU1L3NlYzozZWU2NWRkNDlhNjk0MTNmOWYwMjVjYjFmNWZjYzhlNV8xL2ZyYWc6ODFjMmZiMWQ1MjkzNDhlOWI3YjU0NWM4ZjRjNGVlMDgvdGFibGU6ODRlZjlhODIxZmIyNGYyMWFkZTNhNWYyYzJlODcyMGIvdGFibGVyYW5nZTo4NGVmOWE4MjFmYjI0ZjIxYWRlM2E1ZjJjMmU4NzIwYl8xLTItMS0xLTE1ODYzOQ_df50b5bb-693b-4299-ae4c-ff0af0eaac4b">NASDAQ</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany
      contextRef="i6e17faa997884f98a7997b3b7d8f434c_D20220817-20220817"
      id="id3VybDovL2RvY3MudjEvZG9jOjNlZTY1ZGQ0OWE2OTQxM2Y5ZjAyNWNiMWY1ZmNjOGU1L3NlYzozZWU2NWRkNDlhNjk0MTNmOWYwMjVjYjFmNWZjYzhlNV8xL2ZyYWc6ODFjMmZiMWQ1MjkzNDhlOWI3YjU0NWM4ZjRjNGVlMDgvdGV4dHJlZ2lvbjo4MWMyZmIxZDUyOTM0OGU5YjdiNTQ1YzhmNGM0ZWUwOF8yMTEz_26de5d58-148d-4589-9c38-2f8d3016843a">false</dei:EntityEmergingGrowthCompany>
</xbrl>
