| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 25815380 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 26871071 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 9135471 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 12930926 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | VISION: GROWTH INSPIRED BY ENGAGEMENT, EMPOWERMENT, AND EXTRAORDINARY SERVICE. MISSION: "WE BETTER LIVES THROUGH OUR PASSION TO SERVE." |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 1786657 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 2140726 |
| IRS990/AmendedReturnInd | 0 | X |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | KAREN HARBIN CEO |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 5025644775 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 417 HIGH STREET |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | FRANKFORT |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | KY |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 40601 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CapStkTrPrinCurrentFundsGrp/BOYAmt | 0 | 0 |
| IRS990/CapStkTrPrinCurrentFundsGrp/EOYAmt | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 19846033 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 16268590 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 51 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 1640979 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 1 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 116789 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 4385513 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 1 | 2091157 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 2 | 1484631 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 3 | 1383096 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 4 | 1288495 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 12550 LAKE STATION PLACE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 1 | PO BOX 742233 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 2 | PO BOX 509 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 3 | 9300 SHELBYVILLE RD SUITE 915 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 4 | 555 GEST ST |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | LOUISVILLE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 1 | LOS ANGELES |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 2 | MONETT |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 3 | LOUISVILLE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 4 | CINCINNATI |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | KY |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 1 | CA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 2 | MO |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 3 | KY |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 4 | OH |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 40299 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 1 | 90074 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 2 | 65708 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 3 | 40222 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 4 | 45203 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | KELLEY CONSTRUCTION |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 1 | VISA USA INC |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 2 | JACK HENRY & ASSOCIATES INC |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 3 | CROSSHAIR MEDIA PLACEMENT LLC |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 4 | K4 INTERIORS LLC |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | CONSTRUCTION |
| IRS990/ContractorCompensationGrp/ServicesDesc | 1 | VISA PROCESSING SERVICES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 2 | SYSTEM MAINTENANCE EXPENSES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 3 | RADIO, TV, OUTDOOR&PRINT MKTG |
| IRS990/ContractorCompensationGrp/ServicesDesc | 4 | ARCHITECTURE |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 0 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 355500 |
| IRS990/CYInvestmentIncomeAmt | 0 | 4473534 |
| IRS990/CYOtherExpensesAmt | 0 | 45720717 |
| IRS990/CYOtherRevenueAmt | 0 | 2725092 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 81152276 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 14103271 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 28171414 |
| IRS990/CYTotalExpensesAmt | 0 | 74247631 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 88350902 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 1 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 4303197 |
| IRS990/Desc | 0 | SHARES:THE CREDIT UNION HAS 271,669 SHARE ACCOUNTS AGGREGATING OVER $1.7 BILLION. COMMONWEALTH CREDIT UNION HAS A MYRIAD OF SAVINGS OPTIONS FROM WHICH MEMBERS CAN SELECT FROM TO GROW THEIR FUTURES. |
| IRS990/DescribedInSection501c3Ind | 0 | 0 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 1 |
| IRS990/EmployeeCnt | 0 | 394 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 151111 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 167096 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 1566701 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/HighestCompensatedEmployeeInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 6 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 7 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 8 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 9 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 10 | X |
| IRS990/Form990PartVIISectionAGrp/KeyEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 176647 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 94561 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 36502 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 124854 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 30917 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 45213 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 78027 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 71622 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | DONNIE RODGERS II |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | JIM CHADWELL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | RANDY OVERSTREET |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | RANDY FAWNS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | REGINA GRUBBS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | MARY FOSTER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | KAY JONES |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | KELLY SMITH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | BILL LEACH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | KENNETH BLACKWELL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | KAREN HARBIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | STEPHEN BELLAS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | DAVID YOUNG |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | ALAN DAVIS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | PATTY SMITH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | KAREN MAXFIELD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | GLORIA THOMAS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | DOUG GRAHAM |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 1786 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 685553 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 325766 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 321950 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 398815 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 221399 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 15 | 249651 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 281549 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 280461 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 1 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 2 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 3 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 4 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 5 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 6 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 7 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 8 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 9 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 17 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | BOARD OF DIRECTORS |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | BOARD OF DIRECTORS |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | VICE CHAIRPERSON |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | CHAIRPERSON |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | BOARD OF DIRECTORS |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | BOARD OF DIRECTORS |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | BOARD OF DIRECTORS |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | BOARD OF DIRECTORS |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | BOARD OF DIRECTORS |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | CEO/PRESIDENT/BOARD MEMBER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | CFO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | EXECUTIVE VICE PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | CHEIF LENDING OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | CHIEF MARKETING OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | CHEIF HUMAN RESOURCES OFFI |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | CHIEF OPERATIONS OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | CHIEF INFORMATION OFFICER |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/Form990TFiledInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1951 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 11 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 355500 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 1 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 88350902 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 10 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 45 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartIXInd | 0 | X |
| IRS990/InfoInScheduleOPartVIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIInd | 0 | X |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 3679554 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 93005 |
| IRS990/IntangibleAssetsGrp/BOYAmt | 0 | 10582046 |
| IRS990/IntangibleAssetsGrp/EOYAmt | 0 | 10399826 |
| IRS990/InterestGrp/TotalAmt | 0 | 7868269 |
| IRS990/InvestmentIncomeGrp/RelatedOrExemptFuncIncomeAmt | 0 | 4473534 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 4473534 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsOtherSecuritiesGrp/BOYAmt | 0 | 45594982 |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 48284755 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 150092069 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 245678787 |
| IRS990/IRPDocumentCnt | 0 | 46518 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 35768374 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 37220576 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 38693514 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 74461888 |
| IRS990/LegalDomicileStateCd | 0 | KY |
| IRS990/LoanOutstandingInd | 0 | 1 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 1 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MissionDesc | 0 | THE CREDIT UNION'S VISION IS "GROWTH INSPIRED BY ENGAGEMENT, EMPOWERMENT, AND EXTRAORDINARY SERVICE." COMMONWEALTH PROVIDES ITS MEMBERS WITH A SAFE PLACE TO SAVE AND A SOURCE OF CREDIT IN A NOT-FOR-PROFIT CONTEXT. WE STRIVE TO IMPROVE THE LIVES OF THOSE WE SERVE BY HELPING THEM ACHIEVE THEIR DREAMS THROUGH FINANCIAL HEALTH AND SUCCESS. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 199342998 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 210668450 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | -689056 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 4083515 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 5723733 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501cInd | 0 | X |
| IRS990/OrgDoesNotFollowFASB117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 44149745 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 44904055 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | -2088763 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 4022022 |
| IRS990/OtherExpensesGrp/Desc | 0 | PROCESSING FEES |
| IRS990/OtherExpensesGrp/Desc | 1 | PROVISION FOR LOAN LOSS |
| IRS990/OtherExpensesGrp/Desc | 2 | LOAN SERVICING |
| IRS990/OtherExpensesGrp/Desc | 3 | CREDIT CARD REWARDS |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 5462866 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 3480332 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 3058306 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 1971624 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 1426076669 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 1653550829 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 522100 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | INS COMM MEMBER SERVICE |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 2725092 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 2725092 |
| IRS990/OtherRevenueTotalAmt | 0 | 2725092 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 19065320 |
| IRS990/OthNotesLoansReceivableNetGrp/BOYAmt | 0 | 1139228408 |
| IRS990/OthNotesLoansReceivableNetGrp/EOYAmt | 0 | 1253738357 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 1434477 |
| IRS990/PdInCapSrplsLandBldgEqpFundGrp/BOYAmt | 0 | 0 |
| IRS990/PdInCapSrplsLandBldgEqpFundGrp/EOYAmt | 0 | 0 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 2008616 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 2817887 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 2722048 |
| IRS990/PrincipalOfficerNm | 0 | KAREN HARBIN |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 522100 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 522100 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 2 | 522100 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 3 | 522100 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 4 | 520000 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | INTEREST ON LOANS |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | INTERCHANGE INCOME |
| IRS990/ProgramServiceRevenueGrp/Desc | 2 | FEE INCOME |
| IRS990/ProgramServiceRevenueGrp/Desc | 3 | OTHER INCOME |
| IRS990/ProgramServiceRevenueGrp/Desc | 4 | FINANCE AND INSURANCE |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 0 | 55114185 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 1 | 12039537 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 2 | 9731619 |
| IRS990/ProgramServiceRevenueGrp/RelatedOrExemptFuncIncomeAmt | 3 | 3316679 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 0 | 55114185 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 1 | 12039537 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 2 | 9731619 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 3 | 3316679 |
| IRS990/ProgramServiceRevenueGrp/TotalRevenueColumnAmt | 4 | 950256 |
| IRS990/ProgramServiceRevenueGrp/UnrelatedBusinessRevenueAmt | 0 | 950256 |
| IRS990/ProgSrvcAccomActy2Grp/Desc | 0 | LOANS:COMMONWEALTH CREDIT UNION'S LOAN PORTFOLIO EXCEEDS $1.27 BILLION. THE CREDIT UNION HAS 88,273 LOAN ACCOUNTS. LOANS ARE PROVIDED TO 81,092 MEMBERS. COMMONWEALTH OFFERS ITS MEMBERS AN ARRAY OF LOAN PRODUCTS TO MEET THEIR CREDIT NEEDS. |
| IRS990/ProgSrvcAccomActy3Grp/Desc | 0 | MISCELLANEOUS FINANCIAL SERVICES:COMMONWEALTH CREDIT UNION OFFERS A VARIETY OF SERVICES TO ITS 113,227 MEMBERS. THESE INCLUDE ONLINE BANKING, MOBILE BANKING, BILL PAYMENT, REMOTE AND MOBILE DEPOSIT AND OTHER ELECTRONIC SERVICES. |
| IRS990/ProhibitedTaxShelterTransInd | 0 | 0 |
| IRS990/PYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/PYContributionsGrantsAmt | 0 | 0 |
| IRS990/PYGrantsAndSimilarPaidAmt | 0 | 390126 |
| IRS990/PYInvestmentIncomeAmt | 0 | 4241905 |
| IRS990/PYOtherExpensesAmt | 0 | 46463493 |
| IRS990/PYOtherRevenueAmt | 0 | 2943045 |
| IRS990/PYProgramServiceRevenueAmt | 0 | 75463633 |
| IRS990/PYRevenuesLessExpensesAmt | 0 | 8847736 |
| IRS990/PYSalariesCompEmpBnftPaidAmt | 0 | 26947228 |
| IRS990/PYTotalExpensesAmt | 0 | 73800847 |
| IRS990/PYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/PYTotalRevenueAmt | 0 | 82648583 |
| IRS990/ReceivablesFromOfficersEtcGrp/BOYAmt | 0 | 17245892 |
| IRS990/ReceivablesFromOfficersEtcGrp/EOYAmt | 0 | 17447671 |
| IRS990/ReconcilationRevenueExpnssAmt | 0 | 14103271 |
| IRS990/RegularMonitoringEnfrcInd | 0 | 1 |
| IRS990/RelatedEntityInd | 0 | 0 |
| IRS990/RelatedOrganizationCtrlEntInd | 0 | 0 |
| IRS990/ReportInvestmentsOtherSecInd | 0 | 0 |
| IRS990/ReportLandBuildingEquipmentInd | 0 | 1 |
| IRS990/ReportOtherAssetsInd | 0 | 0 |
| IRS990/ReportOtherLiabilitiesInd | 0 | 1 |
| IRS990/ReportProgramRelatedInvstInd | 0 | 0 |
| IRS990/RtnEarnEndowmentIncmOthFndsGrp/BOYAmt | 0 | 199342998 |
| IRS990/RtnEarnEndowmentIncmOthFndsGrp/EOYAmt | 0 | 210668450 |
| IRS990/SavingsAndTempCashInvstGrp/BOYAmt | 0 | 175321938 |
| IRS990/SavingsAndTempCashInvstGrp/EOYAmt | 0 | 200021821 |
| IRS990/ScheduleBRequiredInd | 0 | 0 |
| IRS990ScheduleD/BuildingsGrp/BookValueAmt | 0 | 24329502 |
| IRS990ScheduleD/BuildingsGrp/DepreciationAmt | 0 | 18106773 |
| IRS990ScheduleD/BuildingsGrp/OtherCostOrOtherBasisAmt | 0 | 42436275 |
| IRS990ScheduleD/EquipmentGrp/BookValueAmt | 0 | 7289592 |
| IRS990ScheduleD/EquipmentGrp/DepreciationAmt | 0 | 17086869 |
| IRS990ScheduleD/EquipmentGrp/OtherCostOrOtherBasisAmt | 0 | 24376461 |
| IRS990ScheduleD/ExpensesNotReportedAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesNotRptFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 74247631 |
| IRS990ScheduleD/FootnoteTextInd | 0 | X |
| IRS990ScheduleD/LandGrp/BookValueAmt | 0 | 5757851 |
| IRS990ScheduleD/LandGrp/OtherCostOrOtherBasisAmt | 0 | 5757851 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/BookValueAmt | 0 | 357075 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/DepreciationAmt | 0 | 52161 |
| IRS990ScheduleD/LeaseholdImprovementsGrp/OtherCostOrOtherBasisAmt | 0 | 409236 |
| IRS990ScheduleD/NetUnrealizedGainsInvstAmt | 0 | 5471105 |