| IRS990EZ/ActivitiesNotPreviouslyRptInd | 0 | 0 |
| IRS990EZ/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | The Organization |
| IRS990EZ/BooksInCareOfDetail/PhoneNum | 0 | 6366992337 |
| IRS990EZ/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | PO Box 1541 |
| IRS990EZ/BooksInCareOfDetail/USAddress/CityNm | 0 | OFallon |
| IRS990EZ/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | MO |
| IRS990EZ/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 63366 |
| IRS990EZ/CashSavingsAndInvestmentsGrp/BOYAmt | 0 | 78456 |
| IRS990EZ/CashSavingsAndInvestmentsGrp/EOYAmt | 0 | 101627 |
| IRS990EZ/ChgMadeToOrgnzngDocNotRptInd | 0 | 0 |
| IRS990EZ/DirectIndirectPltclExpendAmt | 0 | 0 |
| IRS990EZ/DonorAdvisedFndsInd | 0 | 0 |
| IRS990EZ/ExcessOrDeficitForYearAmt | 0 | 23171 |
| IRS990EZ/ForeignFinancialAccountInd | 0 | 0 |
| IRS990EZ/ForeignOfficeInd | 0 | 0 |
| IRS990EZ/Form990TotalAssetsGrp/BOYAmt | 0 | 78456 |
| IRS990EZ/Form990TotalAssetsGrp/EOYAmt | 0 | 101627 |
| IRS990EZ/GrossReceiptsAmt | 0 | 93042 |
| IRS990EZ/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990EZ/InfoInScheduleOPartIInd | 0 | X |
| IRS990EZ/InfoInScheduleOPartVInd | 0 | X |
| IRS990EZ/MadeLoansToFromOfficersInd | 0 | 0 |
| IRS990EZ/MembershipDuesAmt | 0 | 93042 |
| IRS990EZ/MethodOfAccountingCashInd | 0 | X |
| IRS990EZ/NetAssetsOrFundBalancesBOYAmt | 0 | 78456 |
| IRS990EZ/NetAssetsOrFundBalancesEOYAmt | 0 | 101627 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/BOYAmt | 0 | 78456 |
| IRS990EZ/NetAssetsOrFundBalancesGrp/EOYAmt | 0 | 101627 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 0 | 0.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 1 | 0.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/AverageHrsPerWkDevotedToPosRt | 2 | 0.00 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/CompensationAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/EmployeeBenefitProgramAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 0 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 1 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/ExpenseAccountOtherAllwncAmt | 2 | 0 |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 0 | Eric Johnston |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 1 | Darren Daly |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/PersonNm | 2 | Chad Vesely |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 0 | President |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 1 | Vice President |
| IRS990EZ/OfficerDirectorTrusteeEmplGrp/TitleTxt | 2 | Secretary - Treasurer |
| IRS990EZ/OperateHospitalInd | 0 | 0 |
| IRS990EZ/Organization501cInd | 0 | X |
| IRS990EZ/OrganizationDissolvedEtcInd | 0 | 0 |
| IRS990EZ/OrganizationHadUBIInd | 0 | 0 |
| IRS990EZ/OtherChangesInNetAssetsAmt | 0 | 0 |
| IRS990EZ/OtherExpensesTotalAmt | 0 | 69871 |
| IRS990EZ/PoliticalCampaignActyInd | 0 | 0 |
| IRS990EZ/PrimaryExemptPurposeTxt | 0 | Provide public safety personnel membership in the International IAFF, and provide community support and member support to chartiable and community related organizations. |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 0 | Provide public safety personnel membership in the International IAFF |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 1 | Provide community support to charitable and community related organizations |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/DescriptionProgramSrvcAccomTxt | 2 | Provide member support when the member is in need |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/GrantsAndAllocationsAmt | 0 | 0 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/GrantsAndAllocationsAmt | 1 | 0 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/GrantsAndAllocationsAmt | 2 | 0 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 0 | 41664 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 1 | 9831 |
| IRS990EZ/ProgramSrvcAccomplishmentGrp/ProgramServiceExpensesAmt | 2 | 5668 |
| IRS990EZ/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990EZ/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990EZ/ScheduleBNotRequiredInd | 0 | X |
| IRS990EZ/SubjectToProxyTaxInd | 0 | 0 |
| IRS990EZ/SumOfTotalLiabilitiesGrp/BOYAmt | 0 | 0 |
| IRS990EZ/SumOfTotalLiabilitiesGrp/EOYAmt | 0 | 0 |
| IRS990EZ/TanningServicesProvidedInd | 0 | 0 |
| IRS990EZ/TotalExpensesAmt | 0 | 69871 |
| IRS990EZ/TotalProgramServiceExpensesAmt | 0 | 57163 |
| IRS990EZ/TotalRevenueAmt | 0 | 93042 |
| IRS990EZ/TypeOfOrganizationCorpInd | 0 | X |
| IRS990ScheduleO/SupplementalInformationDetail/ExplanationTxt | 0 | Description: Donations. Amount: 9,831. Description: Election Expenses. Amount: 297. Description: PO Box. Amount: 90. Description: Bank Service Fees. Amount: 29. Description: Flowers and expenses for funerals. Amount: 5,668. Description: Community Outreach expenses. Amount: 5,520. Description: Board and shop expenses. Amount: 2,880. Description: Union Dues. Amount: 41,664. Description: Cable expenses. Amount: 2,472. Description: Union Patches. Amount: 1,000. Description: Miscellaneous other expenses. Amount: 420. Total to Form 990-EZ, line 16: 69,871. |
| IRS990ScheduleO/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | Form 990-EZ, Part I, Line 16 - Other Expenses |
| TransferPrsnlBnftContractsDecl/DeclarationDesc | 0 | The organization did not, during the year, receive any funds, directly,or indirectly, to pay premiums on a personal benefit contract.The organization, did not, during the year, pay any premiums, directly,or indirectly, on a personal benefit contract. |
| ReturnHeader/BuildTS | 0 | 2019-02-21 02:37:17Z |
| ReturnHeader/BusinessOfficerGrp/DiscussWithPaidPreparerInd | 0 | 1 |
| ReturnHeader/BusinessOfficerGrp/PersonNm | 0 | Eric Johnston President |
| ReturnHeader/BusinessOfficerGrp/PersonTitleTxt | 0 | President |
| ReturnHeader/BusinessOfficerGrp/PhoneNum | 0 | 6366992337 |
| ReturnHeader/BusinessOfficerGrp/SignatureDt | 0 | 2019-01-30 |
| ReturnHeader/Filer/BusinessName/BusinessNameLine1Txt | 0 | O'Fallon Professional Fire Fighters |
| ReturnHeader/Filer/BusinessName/BusinessNameLine2Txt | 0 | Association |
| ReturnHeader/Filer/BusinessNameControlTxt | 0 | OFAL |
| ReturnHeader/Filer/EIN | 0 | 475605726 |
| ReturnHeader/Filer/PhoneNum | 0 | 6366992337 |
| ReturnHeader/Filer/USAddress/AddressLine1Txt | 0 | PO Box 1541 |
| ReturnHeader/Filer/USAddress/CityNm | 0 | OFallon |
| ReturnHeader/Filer/USAddress/StateAbbreviationCd | 0 | MO |
| ReturnHeader/Filer/USAddress/ZIPCd | 0 | 63366 |
| ReturnHeader/FilingSecurityInformation/AtSubmissionCreationDeviceId | 0 | 00ACD7E78F54DBC60AABA56786656EFCEC6B4B9F |
| ReturnHeader/FilingSecurityInformation/AtSubmissionFilingDeviceId | 0 | F743C5A43CAED6561DC84FF847D0C83440B8E877 |
| ReturnHeader/FilingSecurityInformation/FilingLicenseTypeCd | 0 | P |
| ReturnHeader/FilingSecurityInformation/IPAddress/IPv4AddressTxt | 0 | 96.35.175.54 |
| ReturnHeader/FilingSecurityInformation/IPDt | 0 | 2019-02-13 |
| ReturnHeader/FilingSecurityInformation/IPTimezoneCd | 0 | CS |
| ReturnHeader/FilingSecurityInformation/IPTm | 0 | 15:50:16 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmEIN | 0 | 431663067 |
| ReturnHeader/PreparerFirmGrp/PreparerFirmName/BusinessNameLine1Txt | 0 | ROGNAN & ASSOCIATES |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/AddressLine1Txt | 0 | 616 Applecross Ct |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/CityNm | 0 | Manchester |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/StateAbbreviationCd | 0 | MO |
| ReturnHeader/PreparerFirmGrp/PreparerUSAddress/ZIPCd | 0 | 630219838 |
| ReturnHeader/PreparerPersonGrp/PhoneNum | 0 | 6363919831 |
| ReturnHeader/PreparerPersonGrp/PreparationDt | 0 | 2019-01-30 |
| ReturnHeader/PreparerPersonGrp/PreparerPersonNm | 0 | Richard A Rognan |
| ReturnHeader/ReturnTs | 0 | 2019-02-14T10:08:25-06:00 |
| ReturnHeader/ReturnTypeCd | 0 | 990EZ |
| ReturnHeader/TaxPeriodBeginDt | 0 | 2017-01-01 |
| ReturnHeader/TaxPeriodEndDt | 0 | 2017-12-31 |
| ReturnHeader/TaxYr | 0 | 2017 |