<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:chmi="http://chmireit.com/20260611"
  xmlns:dei="http://xbrl.sec.gov/dei/2025"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:us-gaap="http://fasb.org/us-gaap/2025"
  xmlns:xbrldi="http://xbrl.org/2006/xbrldi"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="chmi-20260611.xsd" xlink:type="simple"/>
    <context id="c20260611to20260611">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001571776</identifier>
        </entity>
        <period>
            <startDate>2026-06-11</startDate>
            <endDate>2026-06-11</endDate>
        </period>
    </context>
    <context id="c20260611to20260611_StatementClassOfStockAxis_CommonStockMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001571776</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">us-gaap:CommonStockMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-06-11</startDate>
            <endDate>2026-06-11</endDate>
        </period>
    </context>
    <context id="c20260611to20260611_StatementClassOfStockAxis_Eight250SeriesBFixedToFloatingRateCumulativeRedeemableMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001571776</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">chmi:Eight250SeriesBFixedToFloatingRateCumulativeRedeemableMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-06-11</startDate>
            <endDate>2026-06-11</endDate>
        </period>
    </context>
    <context id="c20260611to20260611_StatementClassOfStockAxis_Eight20SeriesACumulativeRedeemablePreferredStock001ParValueMember">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0001571776</identifier>
            <segment>
                <xbrldi:explicitMember dimension="us-gaap:StatementClassOfStockAxis">chmi:Eight20SeriesACumulativeRedeemablePreferredStock001ParValueMember</xbrldi:explicitMember>
            </segment>
        </entity>
        <period>
            <startDate>2026-06-11</startDate>
            <endDate>2026-06-11</endDate>
        </period>
    </context>
    <dei:AmendmentFlag
      contextRef="c20260611to20260611"
      id="Fact_e27db6434f41453399363e68e3db4858">false</dei:AmendmentFlag>
    <dei:EntityCentralIndexKey
      contextRef="c20260611to20260611"
      id="Fact_cbe689ed3058481b9e13a8b49908b5ff">0001571776</dei:EntityCentralIndexKey>
    <dei:DocumentType
      contextRef="c20260611to20260611"
      id="Fact_2548eed29f904d02ba34c55e1c337180">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate
      contextRef="c20260611to20260611"
      id="Fact_d28f59e23bba44c6926ec95260ff8e89">2026-06-11</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName
      contextRef="c20260611to20260611"
      id="Fact_1bb51ad9685c4939883ebca92d101e78">CHERRY HILL MORTGAGE INVESTMENT CORPORATION</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="c20260611to20260611"
      id="Fact_d3e79743a74d4702985dc11148ea5233">MD</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber
      contextRef="c20260611to20260611"
      id="Fact_f5e2ed2bec48413a8cbc7245df4e4c50">001-36099</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber
      contextRef="c20260611to20260611"
      id="Fact_f0118e0e01054dc0acbc5d26175c84b8">46-1315605</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="c20260611to20260611"
      id="Fact_ab94f447805a438a9afec1628dcf6dbe">4000 Route 66</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2
      contextRef="c20260611to20260611"
      id="Fact_f3cd321181ef48a4806ae8a16725485e">Suite 310</dei:EntityAddressAddressLine2>
    <dei:EntityAddressCityOrTown
      contextRef="c20260611to20260611"
      id="Fact_f6861247ad1742cb932cc631ae41b1ea">Tinton Falls</dei:EntityAddressCityOrTown>
    <dei:EntityAddressStateOrProvince
      contextRef="c20260611to20260611"
      id="Fact_a8671beabc724a0f8c9b885657a7bc9c">NJ</dei:EntityAddressStateOrProvince>
    <dei:EntityAddressPostalZipCode
      contextRef="c20260611to20260611"
      id="Fact_bacaeb597b11484da2921a1771bd70c9">07753</dei:EntityAddressPostalZipCode>
    <dei:CityAreaCode
      contextRef="c20260611to20260611"
      id="Fact_cc53516c564b4a82a15f8787172f888d">877</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="c20260611to20260611"
      id="Fact_403842bf6ed749e1a7e356db6149adfe">870.7005</dei:LocalPhoneNumber>
    <dei:WrittenCommunications
      contextRef="c20260611to20260611"
      id="Fact_6de6236075854cc2b7a904b97a83a389">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="c20260611to20260611"
      id="Fact_95836c9d2a53433da8eed279420758f5">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
      contextRef="c20260611to20260611"
      id="Fact_d58f1a831afd4d2ea5cd5179e3365e6f">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="c20260611to20260611"
      id="Fact_9c1f4f586c5c4ee3ac2ca0e6fc938db3">false</dei:PreCommencementIssuerTenderOffer>
    <dei:EntityEmergingGrowthCompany
      contextRef="c20260611to20260611"
      id="Fact_c4210ede6d7a4b5689260f5a18159cd4">false</dei:EntityEmergingGrowthCompany>
    <dei:Security12bTitle
      contextRef="c20260611to20260611_StatementClassOfStockAxis_CommonStockMember"
      id="Fact_6f6bc8e304e541728c4d9511105e76f2">Common Stock, $0.01 par value</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="c20260611to20260611_StatementClassOfStockAxis_CommonStockMember"
      id="Fact_741655f5ec7149cd95ece74baee1a0e1">CHMI</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="c20260611to20260611_StatementClassOfStockAxis_CommonStockMember"
      id="Fact_c35414f696aa40908393c7a9adb38b22">NYSE</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="c20260611to20260611_StatementClassOfStockAxis_Eight20SeriesACumulativeRedeemablePreferredStock001ParValueMember"
      id="Fact_c7ea7a1625954259a6101c3f6eb7c8d2">8.20% Series A Cumulative Redeemable Preferred Stock, $0.01 par value</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="c20260611to20260611_StatementClassOfStockAxis_Eight20SeriesACumulativeRedeemablePreferredStock001ParValueMember"
      id="Fact_0d67008f02cf4481901af1c92333e7e1">CHMI-PRA</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="c20260611to20260611_StatementClassOfStockAxis_Eight20SeriesACumulativeRedeemablePreferredStock001ParValueMember"
      id="Fact_533a4edd66404949824068f5c51a34f8">NYSE</dei:SecurityExchangeName>
    <dei:Security12bTitle
      contextRef="c20260611to20260611_StatementClassOfStockAxis_Eight250SeriesBFixedToFloatingRateCumulativeRedeemableMember"
      id="Fact_490b5ab860fe437896478ebba6eb8283">8.250% Series B Fixed-to-Floating Rate Cumulative Redeemable</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="c20260611to20260611_StatementClassOfStockAxis_Eight250SeriesBFixedToFloatingRateCumulativeRedeemableMember"
      id="Fact_02178a58e0c74863883b57dfb6b52e69">CHMI-PRB</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="c20260611to20260611_StatementClassOfStockAxis_Eight250SeriesBFixedToFloatingRateCumulativeRedeemableMember"
      id="Fact_08012a71fdb74d2badaa597170726227">NYSE</dei:SecurityExchangeName>
</xbrl>
