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        <EOYAmt>30309945</EOYAmt>
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      <OrgDoesNotFollowSFAS117Ind>X</OrgDoesNotFollowSFAS117Ind>
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        <EOYAmt>0</EOYAmt>
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      <TotalNetAssetsFundBalanceGrp>
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        <EOYAmt>23497285</EOYAmt>
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      <TotLiabNetAssetsFundBalanceGrp>
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        <EOYAmt>53807230</EOYAmt>
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      <InfoInScheduleOPartXIInd>X</InfoInScheduleOPartXIInd>
      <ReconcilationRevenueExpnssAmt>0</ReconcilationRevenueExpnssAmt>
      <OtherChangesInNetAssetsAmt>843965</OtherChangesInNetAssetsAmt>
      <MethodOfAccountingAccrualInd>X</MethodOfAccountingAccrualInd>
      <AccountantCompileOrReviewInd>0</AccountantCompileOrReviewInd>
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    <IRS990ScheduleD documentId="RetDoc1040000001">
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        <BookValueAmt>87569</BookValueAmt>
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        <DepreciationAmt>1156154</DepreciationAmt>
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        <BookValueAmt>8048356</BookValueAmt>
        <MethodValuationCd>C</MethodValuationCd>
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        <Desc>Non-Utility Property</Desc>
        <BookValueAmt>77706</BookValueAmt>
        <MethodValuationCd>C</MethodValuationCd>
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      <InvstProgramRelatedOrgGrp>
        <Desc>Subordinated Certificates</Desc>
        <BookValueAmt>490186</BookValueAmt>
        <MethodValuationCd>C</MethodValuationCd>
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      <InvstProgramRelatedOrgGrp>
        <Desc>Other Investments</Desc>
        <BookValueAmt>2025</BookValueAmt>
        <MethodValuationCd>C</MethodValuationCd>
      </InvstProgramRelatedOrgGrp>
      <TotalBookValueProgramRltdAmt>8618273</TotalBookValueProgramRltdAmt>
      <OtherLiabilitiesOrgGrp>
        <Desc>Deferred Credits</Desc>
        <Amt>169315</Amt>
      </OtherLiabilitiesOrgGrp>
      <TotalLiabilityAmt>169315</TotalLiabilityAmt>
      <FootnoteTextInd>X</FootnoteTextInd>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Part X, Line 2:</FormAndLineReferenceDesc>
        <ExplanationTxt>An evaluation of whether or not it has any uncertain tax positions is determined on an annual basis by the Cooperative. While the Cooperative believes it has adequately provided for all tax positions, amounts asserted by taxing authorities could be different than the positions taken by the Cooperative. The Cooperative recognizes any interest and penalties assessed by taxing authorities in income tax expense and, with few exceptions, is no longer subject to federal, state, or local income tax examinations by tax authorities for years before 2014.</ExplanationTxt>
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      <SeverancePaymentInd>0</SeverancePaymentInd>
      <SupplementalNonqualRtrPlanInd>0</SupplementalNonqualRtrPlanInd>
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        <PersonNm>James Jim Davis</PersonNm>
        <TitleTxt>General Manager</TitleTxt>
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        <CompensationBasedOnRltdOrgsAmt>0</CompensationBasedOnRltdOrgsAmt>
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        <DeferredCompensationFlngOrgAmt>58962</DeferredCompensationFlngOrgAmt>
        <DeferredCompRltdOrgsAmt>0</DeferredCompRltdOrgsAmt>
        <NontaxableBenefitsFilingOrgAmt>14696</NontaxableBenefitsFilingOrgAmt>
        <NontaxableBenefitsRltdOrgsAmt>0</NontaxableBenefitsRltdOrgsAmt>
        <TotalCompensationFilingOrgAmt>232940</TotalCompensationFilingOrgAmt>
        <TotalCompensationRltdOrgsAmt>0</TotalCompensationRltdOrgsAmt>
        <CompReportPrior990FilingOrgAmt>0</CompReportPrior990FilingOrgAmt>
        <CompReportPrior990RltdOrgsAmt>0</CompReportPrior990RltdOrgsAmt>
      </RltdOrgOfficerTrstKeyEmplGrp>
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    <IRS990ScheduleO documentId="RetDoc1044400001">
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 4</FormAndLineReferenceDesc>
        <ExplanationTxt>Paragraph (d). was added to Bylaw Article IV, Section 3, regarding Director qualifications. This addition clarifies who is not eligible to be a director as it states the following: "has been found guilty or convicted of, or plead guilty or no contest to, a felony under the laws of the State of Missouri or an offense committed in another state that would be considered a felony if committed in the State of Missouri."</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7a</FormAndLineReferenceDesc>
        <ExplanationTxt>All Board members are elected by the membership.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section A, line 7b</FormAndLineReferenceDesc>
        <ExplanationTxt>Board members must approve all changes to the bylaws, as well as the sale of a substantial amount of assets.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 11b</FormAndLineReferenceDesc>
        <ExplanationTxt>The Form 990 is reviewed by the Financial and Administrative Manager and General Manager, then it is signed and filed.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 12c</FormAndLineReferenceDesc>
        <ExplanationTxt>No known conflicts of interest have been discovered. If there had been conflicts, the organization would have an appropriate review, and action would be taken if necessary.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section B, line 15</FormAndLineReferenceDesc>
        <ExplanationTxt>The Board in executive session determines the General Manager's compensation. The Board then records the decision in the minutes and later approves the minutes.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part VI, Section C, line 19</FormAndLineReferenceDesc>
        <ExplanationTxt>Bylaws are offered to all new members. All other documents are available at any time upon request, or can be found on the cooperative's website.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part IX, Line 4</FormAndLineReferenceDesc>
        <ExplanationTxt>The instructions to the 2017 Form 990 indicate that organizations exempt under Section 501 (c)(12) should report "patronage dividends paid" to their members in Part IX, Line 4 of the Form 990. The Cooperative has interpreted the words "patronage dividends paid" in the instructions to mean margins that are assigned or assignable to the members. The Cooperative assigns the net margins to its members each year. Therefore, the amount listed in Part IX, Line 4 represents the net margins assignable to the members for the calendar year ended December 31, 2017. For 2016, the Cooperative used margins retired rather than margins assigned.</ExplanationTxt>
      </SupplementalInformationDetail>
      <SupplementalInformationDetail>
        <FormAndLineReferenceDesc>Form 990, Part XI, line 9:</FormAndLineReferenceDesc>
        <ExplanationTxt>Prior period adjustment -28. Margins assigned to members 1,518,670. Change in membership 15. Retirement of capital credits -836,084. Discounted capital credits 28,527. Capital credit gains 131,654. Other 1,211.</ExplanationTxt>
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        <DisregardedEntityName>
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        </DisregardedEntityName>
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          <AddressLine1Txt>PO Box 111</AddressLine1Txt>
          <CityNm>El Dorado Springs</CityNm>
          <StateAbbreviationCd>MO</StateAbbreviationCd>
          <ZIPCd>64744</ZIPCd>
        </USAddress>
        <EIN>651184716</EIN>
        <PrimaryActivitiesTxt>Fiber Optic Communications</PrimaryActivitiesTxt>
        <LegalDomicileStateCd>MO</LegalDomicileStateCd>
        <TotalIncomeAmt>-6075</TotalIncomeAmt>
        <EndOfYearAssetsAmt>110106</EndOfYearAssetsAmt>
        <DirectControllingEntityName>
          <BusinessNameLine1Txt>Sac-Osage Electric Cooperative</BusinessNameLine1Txt>
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