<?xml version="1.0" encoding="utf-8"?>
<xbrl
  xmlns="http://www.xbrl.org/2003/instance"
  xmlns:dei="http://xbrl.sec.gov/dei/2026"
  xmlns:link="http://www.xbrl.org/2003/linkbase"
  xmlns:xlink="http://www.w3.org/1999/xlink">
    <link:schemaRef xlink:href="cwco-20261008.xsd" xlink:type="simple"/>
    <context id="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg">
        <entity>
            <identifier scheme="http://www.sec.gov/CIK">0000928340</identifier>
        </entity>
        <period>
            <startDate>2026-10-08</startDate>
            <endDate>2026-10-08</endDate>
        </period>
    </context>
    <dei:EntityCentralIndexKey
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Tc_EKSpmfYoSkWwfGX6t_gjqA_2_1">0000928340</dei:EntityCentralIndexKey>
    <dei:AmendmentFlag
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Tc_XqAzJVXx30SyetWhHueoTQ_3_1">false</dei:AmendmentFlag>
    <dei:DocumentType
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Narr_qXeoHTdgZki7pzGRpLRlIQ">8-K</dei:DocumentType>
    <dei:DocumentPeriodEndDate
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Narr_YyNylE8JBEuyhxagZwPpaA">2026-10-08</dei:DocumentPeriodEndDate>
    <dei:EntityRegistrantName
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Narr_wjtUOLSXaE6jXKUKHw-d5A">CONSOLIDATED WATER CO. LTD.</dei:EntityRegistrantName>
    <dei:EntityIncorporationStateCountryCode
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Narr_yqFseSNk_02jJVqbu6bDaw">KY</dei:EntityIncorporationStateCountryCode>
    <dei:EntityFileNumber
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Tc_8FdVTRzErkq4udPe9muEyg_1_1">0-25248</dei:EntityFileNumber>
    <dei:EntityTaxIdentificationNumber
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Tc_hFW0yKgzokyKQwzbKwjCMg_1_2">98-0619652</dei:EntityTaxIdentificationNumber>
    <dei:EntityAddressAddressLine1
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Narr_uZIlVRXMt0eY506a_28Ryw">Regatta Office Park</dei:EntityAddressAddressLine1>
    <dei:EntityAddressAddressLine2
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Narr_ftxIUGWU_EOrxcg99lX8nA">Windward Three, 4th Floor</dei:EntityAddressAddressLine2>
    <dei:EntityAddressAddressLine3
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Narr_g-fJZLZG0UG82qXum2FiQA">West Bay Road, P.O. Box 1114</dei:EntityAddressAddressLine3>
    <dei:EntityAddressCityOrTown
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Narr_h2tSD6p7XUusL_AgLZCCUg">Grand Cayman</dei:EntityAddressCityOrTown>
    <dei:EntityAddressPostalZipCode
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Narr_nx3637ho9kCITIOMhmBZKg">KY1-1102</dei:EntityAddressPostalZipCode>
    <dei:EntityAddressStateOrProvince
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Narr_T24gisAzLEKkEB4xCvh6NA">KY</dei:EntityAddressStateOrProvince>
    <dei:CityAreaCode
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Narr_95s1veOkPU-X874eDdRvaA">345</dei:CityAreaCode>
    <dei:LocalPhoneNumber
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Narr_jhu_eg-fd06w-XgIY82FKg">945-4277</dei:LocalPhoneNumber>
    <dei:WrittenCommunications
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Tc_I5n_Xs9670ehyJAf5HfnDA_1_0">false</dei:WrittenCommunications>
    <dei:SolicitingMaterial
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Tc_XSiU-LDbB02Gwrq9yScCiw_3_0">false</dei:SolicitingMaterial>
    <dei:PreCommencementTenderOffer
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Tc_6Fl5Jjg5uUOWZ_W9oKFQsg_5_0">false</dei:PreCommencementTenderOffer>
    <dei:PreCommencementIssuerTenderOffer
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Tc_CX1iao5bwUOx3ngcjdRNvg_7_0">false</dei:PreCommencementIssuerTenderOffer>
    <dei:Security12bTitle
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Tc_MOx3WhStsEqVqP6lIAtNBA_2_0">Class A common stock, $0.60 par value</dei:Security12bTitle>
    <dei:TradingSymbol
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Tc_fpunAipf2EK87pvTsLQz_w_2_2">CWCO</dei:TradingSymbol>
    <dei:SecurityExchangeName
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Tc_Khr3laUKuEmIqP3bAjosGA_2_4">NASDAQ</dei:SecurityExchangeName>
    <dei:EntityEmergingGrowthCompany
      contextRef="Duration_10_8_2026_To_10_8_2026_z3Awnhmh5kCkO3pSVI5PWg"
      id="Narr_rViXVUenXk2_sa8ZQuDYMw">false</dei:EntityEmergingGrowthCompany>
</xbrl>
