| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 2635466 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 2226769 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 85094 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 688145 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | NON-PARTISAN RESEARCH AND EDUCATION DEDICATED TO ADVANCING PROGRESSIVE POLICY IDEAS. |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 26200 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 26200 |
| IRS990/AllOtherContributionsAmt | 0 | 48934316 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/PersonNm | 0 | SHANE BATEMAN |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 2027416276 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 1333 H STREET NW 10TH FLOOR |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | WASHINGTON |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | DC |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 20005 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 1 |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 6592968 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 5572015 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 11 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 101340 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 503582 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 524643 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 1129565 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 1 |
| IRS990/ConferencesMeetingsGrp/FundraisingAmt | 0 | 34434 |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 8003 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 491298 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 533735 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 414500 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 1 | 275000 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 2 | 263944 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 3 | 197280 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 4 | 153560 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 1724 CONNECTICUT AVE NW |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 1 | 720 COLORADO BLVD SUITE 500N |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 2 | PO BOX 37567 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 3 | 8 PINE AVENUE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 4 | 1000 WEST 3RD STREET |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | WASHINGTON |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 1 | DENVER |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 2 | BALTIMORE |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 3 | TAKOMA PARK |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 4 | LITTLE ROCK |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | DC |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 1 | CO |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 2 | MD |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 3 | MD |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 4 | AR |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 20009 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 1 | 80246 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 2 | 212973567 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 3 | 20912 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 4 | 72201 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | HART RESEARCH ASSOCIATES |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 1 | BENENSON STRATEGY GROUP |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 2 | CWPS |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 3 | CATHLEEN KELLY |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 4 | MARKHAM GROUP LLC |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | PUBLIC OPINION POLL |
| IRS990/ContractorCompensationGrp/ServicesDesc | 1 | PUBLIC OPINION POLL |
| IRS990/ContractorCompensationGrp/ServicesDesc | 2 | IT CONSULTING |
| IRS990/ContractorCompensationGrp/ServicesDesc | 3 | POLICY CONSULTANT |
| IRS990/ContractorCompensationGrp/ServicesDesc | 4 | CONSULTING |
| IRS990/ContriRptFundraisingEventAmt | 0 | 843788 |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 49778104 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 7661759 |
| IRS990/CYInvestmentIncomeAmt | 0 | 57105 |
| IRS990/CYOtherExpensesAmt | 0 | 14405273 |
| IRS990/CYOtherRevenueAmt | 0 | 297733 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 41334 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 2821415 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 25285829 |
| IRS990/CYTotalExpensesAmt | 0 | 47352861 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 1131272 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 50174276 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 1 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 16178 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 62817 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 519115 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 598110 |
| IRS990/Desc | 0 | POLICY PROGRAMS: PUBLIC POLICY RESEARCH AND ANALYSIS WAS CONDUCTED IN AREAS OF ENERGY AND THE ENVIRONMENT, EDUCATION, HEALTH CARE, IMMIGRATION, OPEN GOVERNMENT, POVERTY, LGBT RIGHTS, AND WOMEN'S RIGHTS. IN ADDITION, THE ECONOMIC POLICY TEAM CONDUCTED PROJECTS RELATING TO MIDDLE CLASS ECONOMICS, TAX FAIRNESS, HOUSING, AND POST-SECONDARY EDUCATION. CAP'S NATIONAL SECURITY TEAM WORKED ON PROJECTS RELATING TO CHINESE AND MIDDLE EASTERN RELATIONS WITH THE U.S. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 418 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 18497013 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/FundraisingAmt | 0 | 1086 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 13716 |
| IRS990/FeesForServicesAccountingGrp/ProgramServicesAmt | 0 | 33613 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 48415 |
| IRS990/FeesForServicesLegalGrp/FundraisingAmt | 0 | 237 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 50720 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 59639 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 110596 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 13195 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 205391 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 5059871 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 5278457 |
| IRS990/ForeignActivitiesInd | 0 | 1 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 1 |
| IRS990/Form8282PropertyDisposedOfInd | 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 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 37.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 39.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 33.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 33.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 33.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 33.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 39.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 18 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 19 | 38.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 20 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 21 | 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/IndividualTrusteeOrDirectorInd | 11 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 4 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 5 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 1 | 1212 |
| 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 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 34318 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 32042 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 6444 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 11017 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 17811 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 14012 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 18271 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 18 | 24249 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 19 | 25855 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 20 | 21538 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 21 | 20739 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | SECRETARY MADELEINE ALBRIGHT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | CAROL BROWNER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | SENATOR TOM DASCHLE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | GLENN HUTCHINS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | RICHARD LEONE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | JOHN PODESTA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | SUSAN SANDLER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | TOM STEYER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | DONALD SUSSMAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | JOSE VILLARREAL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | HANSJORG WYSS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | NEERA TANDEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | CARMEL MARTIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | DEBORAH L FINE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | DEBORAH HOLSTON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | ALEX DEMOTS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | TOREY CARTER-CONNEEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | LAWRENCE J KORB |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 18 | JOHN NORRIS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 19 | WINNIE STACHELBERG |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 20 | JOHN PRENDERGAST |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 21 | HEATHER BOUSHEY |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 3336 |
| 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 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 315502 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 236568 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 59463 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 133300 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 15 | 132454 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 132087 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 206501 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 18 | 212751 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 19 | 215643 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 20 | 208930 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 21 | 198808 |
| 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/ReportableCompFromRltdOrgAmt | 18 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 19 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 20 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 21 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 2 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 3 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 7 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 8 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 9 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | EVP AND TREASURER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | SVP,GEN.COUNSL./SEC. - UNTIL 04/2015 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | ACTING SVP, FINANCE - UNTIL 02/2015 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | GENERAL COUNSEL AND SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | SVP, CHIEF FINANCIAL OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | SENIOR FELLOW |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 18 | EXEC. DIR., SUSTAIN. SEC. & PEACEBLD |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 19 | EVP, EXTERNAL AFFAIRS |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 20 | FELLOW |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 21 | CHIEF ECONOMIST |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/Form990TFiledInd | 0 | 1 |
| IRS990/FormationYr | 0 | 2002 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 1 |
| IRS990/FundraisingAmt | 0 | 843788 |
| IRS990/FundraisingDirectExpensesAmt | 0 | 212540 |
| IRS990/FundraisingGrossIncomeAmt | 0 | 39600 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 12 |
| IRS990/GrantAmt | 0 | 877845 |
| IRS990/GrantsToDomesticIndividualsGrp/ProgramServicesAmt | 0 | 73800 |
| IRS990/GrantsToDomesticIndividualsGrp/TotalAmt | 0 | 73800 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 7587959 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 7587959 |
| IRS990/GrantsToIndividualsInd | 0 | 1 |
| IRS990/GrantsToOrganizationsInd | 0 | 1 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 50386816 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 10 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 56 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartIXInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 16512 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 81558 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 589300 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 687370 |
| IRS990/InsuranceGrp/FundraisingAmt | 0 | 2915 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 11317 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 93216 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 107448 |
| IRS990/InventoriesForSaleOrUseGrp/BOYAmt | 0 | 7738 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 0 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 57105 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 57105 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 267365 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 266001 |
| IRS990/IRPDocumentCnt | 0 | 324 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 7448337 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 2542374 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 2311183 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 9759520 |
| IRS990/LegalDomicileStateCd | 0 | DC |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 1 |
| IRS990/LocalChaptersInd | 0 | 0 |
| IRS990/MaterialDiversionOrMisuseInd | 0 | 0 |
| IRS990/MembersOrStockholdersInd | 0 | 0 |
| IRS990/MethodOfAccountingAccrualInd | 0 | X |
| IRS990/MinutesOfCommitteesInd | 0 | 1 |
| IRS990/MinutesOfGoverningBodyInd | 0 | 1 |
| IRS990/MiscellaneousRevenueGrp/TotalRevenueColumnAmt | 0 | 2031 |
| IRS990/MiscellaneousRevenueGrp/UnrelatedBusinessRevenueAmt | 0 | 2031 |
| IRS990/MissionDesc | 0 | THE CENTER FOR AMERICAN PROGRESS (CAP) IS AN INDEPENDENT NON-PARTISAN POLICY INSTITUTE THAT IS DEDICATED TO IMPROVING THE LIVES OF ALL AMERICANS, THROUGH BOLD, PROGRESSIVE IDEAS, AS WELL AS STRONG LEADERSHIP AND CONCERTED ACTION. OUR AIM IS NOT JUST TO CHANGE THE CONVERSATION, BUT TO CHANGE THE COUNTRY. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 47919974 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 48889110 |
| IRS990/NetIncmFromFundraisingEvtGrp/ExclusionAmt | 0 | -172940 |
| IRS990/NetIncmFromFundraisingEvtGrp/TotalRevenueColumnAmt | 0 | -172940 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | -2147 |
| IRS990/NoncashContributionsAmt | 0 | 702990 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/FundraisingAmt | 0 | 77093 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 299348 |
| IRS990/OccupancyGrp/ProgramServicesAmt | 0 | 2399519 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 2775960 |
| IRS990/OfficeExpensesGrp/FundraisingAmt | 0 | 198160 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 105550 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 809172 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 1112882 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 1243482 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 2842241 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | -1852279 |
| IRS990/OtherEmployeeBenefitsGrp/FundraisingAmt | 0 | 42410 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 151752 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 1351616 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 1545778 |
| IRS990/OtherExpensesGrp/Desc | 0 | PUBLIC OPINION ANALYSIS |
| IRS990/OtherExpensesGrp/Desc | 1 | MISCELLANEOUS |
| IRS990/OtherExpensesGrp/Desc | 2 | COMMISSIONED PAPERS |
| IRS990/OtherExpensesGrp/Desc | 3 | SUBSCRIPTIONS |
| IRS990/OtherExpensesGrp/FundraisingAmt | 0 | 10426 |
| IRS990/OtherExpensesGrp/FundraisingAmt | 1 | 5327 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 42182 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 24278 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 846562 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 282445 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 271900 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 92595 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 846562 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 335053 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 271900 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 122200 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 4971479 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 4552222 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 1 | 900099 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 2 | 900099 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | SUBLEASE INCOME |
| IRS990/OtherRevenueMiscGrp/Desc | 1 | OTHER INCOME |
| IRS990/OtherRevenueMiscGrp/Desc | 2 | OFFICE SHARING INCOME |
| IRS990/OtherRevenueMiscGrp/ExclusionAmt | 0 | 294702 |
| IRS990/OtherRevenueMiscGrp/ExclusionAmt | 1 | 145049 |