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| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 47115 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 97396 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 45179 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | CHALKBEAT'S MISSION IS TO INFORM THE DECISIONS AND ACTIONS THAT LEAD TO BETTER OUTCOMES FOR CHILDREN AND FAMILIES BY PROVIDING DEEP, LOCAL COVERAGE OF EDUCATION POLICY AND PRACTICE. |
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| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 8365 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 8500 |
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| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 0 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | REBECCA ROSS |
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| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 1239 BROADWAY NO 703B |
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| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 12553 |
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| IRS990/Desc | 0 | THROUGH UNBIASED REPORTING, OUR REPORTERS HELP THE PUBLIC EXAMINE HOW SCHOOLS ARE TRULY OPERATING, SCRUTINIZE KEY POLICY AND LEGISLATIVE DEVELOPMENTS THAT WOULD OTHERWISE HAPPEN BEHIND CLOSED DOORS, AND GAIN ACCESS TO IMPORTANT DATA AND CONTEXT THAT WOULD NOT OTHERWISE BE MADE TRANSPARENT. BY BUILDING OUR LOCAL COMMUNITIES' UNDERSTANDING OF THE COMPLEX DEVELOPMENTS, INNOVATIONS, AND CHALLENGES THAT AFFECT STUDENT OUTCOMES, WE CAN IMPROVE THEIR ABILITY TO SERVE STUDENTS BETTER WHETHER THROUGH THEIR WORK AS PRACTITIONERS, POLICYMAKERS, AND LAWMAKERS, OR THROUGH THEIR DEMOCRATIC PARTICIPATION AS PARENTS, STUDENTS, AND VOTERS. [SEE CONTINUATION ON SCHEDULE O]THE FOLLOWING IS A DESCRIPTION OF THE SPECIFIC ACTIVITIES THAT CHALKBEAT UNDERTAKES:1. REPORTING, WRITING, EDITING, AND PUBLISHING ORIGINAL NEWS CONTENT RELATED TO EDUCATION, WITH A FOCUS ON THE COMMUNITIES WHERE CHALKBEAT HAS BUREAUS. THE VAST MAJORITY OF ORIGINAL NEWS CONTENT IS PRODUCED BY FULL-TIME EMPLOYEES OF THE ORGANIZATION. THE ACTIVITY IS CONDUCTED ON A DAILY BASIS IN OUR BUREAUS IN NEW YORK CITY, THE DENVER METROPOLITAN AREA, INDIANAPOLIS, MEMPHIS, DETROIT, CHICAGO, AND NEWARK, NEW JERSEY. ADDITIONALLY, CHALKBEAT DOES NATIONAL EDUCATION COVERAGE, WHICH KNITS TOGETHER REPORTING FROM LOCAL BUREAUS AND SITUATES IT WITHIN THE BROADER NATIONAL CONTEXT. THE MAJORITY OF CHALKBEAT'S EDITORIAL STAFF TIME IS DEDICATED TO THIS ACTIVITY.2. REACHING AND ENGAGING A BROAD AUDIENCE THROUGH STRATEGIC DISTRIBUTION OF CONTENT AND COMMUNITY OUTREACH. CHALKBEAT'S EDITORIAL STAFF OVERSEES THE DISTRIBUTION OF CONTENT TO DECISION-MAKERS AND THE GENERAL PUBLIC AT NO COST. THROUGH SOCIAL MEDIA, WEB PUBLICATIONS, EMAIL NEWSLETTERS, DISTRIBUTION PARTNERSHIPS, AND PUBLIC APPEARANCES, CHALKBEAT ENSURES THAT ITS CONTENT REACHES AS DEEP AND BROAD AN AUDIENCE AS POSSIBLE. CHALKBEAT ALSO HOSTS AND PARTICIPATES IN EVENTS TO CREATE OPPORTUNITIES FOR READERS TO DIRECTLY INTERACT WITH OUR CONTENT, OUR EDITORIAL STAFF, AND ONE ANOTHER. TO FURTHER EXPAND AND DEEPEN THE CONVERSATION ABOUT EDUCATION, CHALKBEAT'S WEBSITE INCLUDES A "FIRST PERSON" SECTION, FEATURING OP-ED PIECES AND COMMENTARIES FROM A DIVERSE ASSORTMENT OF INDIVIDUALS REPRESENTING A VARIETY OF OPINIONS. THESE ACTIVITIES FURTHER CHALKBEAT'S EXEMPT PURPOSES BY EDUCATING A BROAD CROSS-SECTION OF THE PUBLIC ON PRESSING ISSUES IN PUBLIC EDUCATION. 3. DEVELOPMENT, MAINTENANCE, UPDATING AND UPGRADING OF CHALKBEAT'S NEWS WEBSITE (INCLUDING RELATED PRODUCTS LIKE MOBILE PLATFORMS AND DATABASES), WHICH IS AN INTEGRAL PART OF CHALKBEAT'S CONTENT DELIVERY. TO ENSURE THAT CHALKBEAT WEBSITES ARE USER-FRIENDLY, EMPLOY THE LATEST INNOVATIONS IN CONTENT DELIVERY AND IMPACT MEASUREMENT, AND ATTRACT AND RETAIN READERS, STAFF MUST WORK CONSTANTLY ON MAINTAINING AND UPGRADING THEM. KEEPING THE WEBSITE RUNNING SMOOTHLY ENSURES THAT CONTENT IS READILY AVAILABLE TO USERS ON A VARIETY OF PLATFORMS (MOBILE PHONES, TABLETS, PCS) AND IS PRESENTED COMPELLINGLY. |
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| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | STACY-MARIE ISHMAEL |
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| IRS990/Form990PartVIISectionAGrp/TitleTxt | 4 | DIRECTOR (THRU 04/2018) |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 5 | CEO AND EDITOR-IN-CHIEF |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 6 | CHIEF OPERATING OFFICER |
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| IRS990/MissionDesc | 0 | CHALKBEAT'S MISSION IS TO INFORM THE DECISIONS AND ACTIONS THAT LEAD TO BETTER OUTCOMES FOR CHILDREN AND FAMILIES BY PROVIDING DEEP, LOCAL COVERAGE OF EDUCATION POLICY AND PRACTICE. |
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| IRS990/PrincipalOfficerNm | 0 | REBECCA ROSS |
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| IRS990/ProgramServiceRevenueGrp/Desc | 0 | PROGRAM EVENTS |
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| IRS990/RevenueAmt | 0 | 7732 |
| IRS990ScheduleA/First5Years170Ind | 0 | X |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/ExplanationTxt | 0 | MISCELLANEOUS REVENUE - 2015 AMOUNT: $ 9,025. 2016 AMOUNT: $ 1,059. CREDIT CARD REWARDS - 2017 AMOUNT: $ 4,167. |
| IRS990ScheduleA/Form990ScheduleAPartVIGrp/FormAndLineReferenceDesc | 0 | SCHEDULE A, PART II, LINE 10, EXPLANATION OF OTHER INCOME: |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearAmt | 0 | 6553789 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus1YearAmt | 0 | 3580581 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 3265043 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 1276876 |
| IRS990ScheduleA/GiftsGrantsContriRcvd170Grp/TotalAmt | 0 | 14676289 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/CurrentTaxYearAmt | 0 | 10 |
| IRS990ScheduleA/GrossInvestmentIncome170Grp/TotalAmt | 0 | 10 |
| IRS990ScheduleA/GrossReceiptsRltdActivitiesAmt | 0 | 23295 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearAmt | 0 | 4167 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus1YearAmt | 0 | 1059 |
| IRS990ScheduleA/OtherIncome170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 9025 |
| IRS990ScheduleA/OtherIncome170Grp/TotalAmt | 0 | 14251 |
| IRS990ScheduleA/PublicOrganization170Ind | 0 | X |
| IRS990ScheduleA/PublicSupportTotal170Amt | 0 | 11502546 |
| IRS990ScheduleA/SubstantialContributorsTotAmt | 0 | 3173743 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearAmt | 0 | 6553789 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus1YearAmt | 0 | 3580581 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus2YearsAmt | 0 | 3265043 |
| IRS990ScheduleA/TotalCalendarYear170Grp/CurrentTaxYearMinus3YearsAmt | 0 | 1276876 |
| IRS990ScheduleA/TotalCalendarYear170Grp/TotalAmt | 0 | 14676289 |
| IRS990ScheduleA/TotalSupportAmt | 0 | 14690550 |
| IRS990/ScheduleBRequiredInd | 0 | 1 |
| IRS990ScheduleD/DonatedServicesAndUseFcltsAmt | 0 | 143500 |
| IRS990ScheduleD/DonatedServicesUseFcltsAmt | 0 | 143500 |
| IRS990ScheduleD/ExpensesNotReportedAmt | 0 | 144991 |
| IRS990ScheduleD/ExpensesNotRptFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/ExpensesSubtotalAmt | 0 | 3993659 |
| IRS990ScheduleD/FootnoteTextInd | 0 | X |
| IRS990ScheduleD/OtherExpensesIncludedAmt | 0 | 1491 |
| IRS990ScheduleD/OtherRevenueAmt | 0 | 1491 |
| IRS990ScheduleD/RevenueNotReportedAmt | 0 | 144991 |
| IRS990ScheduleD/RevenueNotReportedFinclStmtAmt | 0 | 0 |
| IRS990ScheduleD/RevenueSubtotalAmt | 0 | 6667478 |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 0 | CHALKBEAT RECOGNIZES THE EFFECT OF INCOME TAX POSITIONS ONLY IF THOSE POSITIONS ARE MORE LIKELY THAN NOT OF BEING SUSTAINED. MANAGEMENT HAS DETERMINED THAT CHALKBEAT HAD NO UNCERTAIN TAX POSITIONS THAT WOULD REQUIRE FINANCIAL STATEMENT RECOGNITION OR DISCLOSURE. TAX YEARS SINCE INCEPTION REMAIN OPEN TO EXAMINATION. THERE ARE CURRENTLY NO EXAMINATIONS IN PROGRESS. |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 1 | REALIZED LOSS RECLASSED TO PART VIII 1,491. |
| IRS990ScheduleD/SupplementalInformationDetail/ExplanationTxt | 2 | REALIZED LOSS RECLASSED TO PART VIII 1,491. |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 0 | PART X, LINE 2: |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 1 | PART XI, LINE 2D - OTHER ADJUSTMENTS: |
| IRS990ScheduleD/SupplementalInformationDetail/FormAndLineReferenceDesc | 2 | PART XII, LINE 2D - OTHER ADJUSTMENTS: |
| IRS990ScheduleD/TotalBookValueLandBuildingsAmt | 0 | 0 |
| IRS990ScheduleD/TotalExpensesPerForm990Amt | 0 | 3993659 |
| IRS990ScheduleD/TotalRevenuePerForm990Amt | 0 | 6667478 |
| IRS990ScheduleD/TotalRevEtcAuditedFinclStmtAmt | 0 | 6812469 |
| IRS990ScheduleD/TotExpnsEtcAuditedFinclStmtAmt | 0 | 4138650 |
| IRS990ScheduleJ/AnyNonFixedPaymentsInd | 0 | 1 |
| IRS990ScheduleJ/BoardOrCommitteeApprovalInd | 0 | X |
| IRS990ScheduleJ/CompBasedOnRevenueOfFlngOrgInd | 0 | 0 |
| IRS990ScheduleJ/CompBsdNetEarnsFlngOrgInd | 0 | 0 |
| IRS990ScheduleJ/CompBsdNetEarnsRltdOrgsInd | 0 | 0 |
| IRS990ScheduleJ/CompBsdOnRevRelatedOrgsInd | 0 | 0 |
| IRS990ScheduleJ/EquityBasedCompArrngmInd | 0 | 0 |
| IRS990ScheduleJ/Form990OfOtherOrganizationsInd | 0 | X |
| IRS990ScheduleJ/InitialContractExceptionInd | 0 | 0 |
| IRS990/ScheduleJRequiredInd | 0 | 1 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 0 | 167379 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BaseCompensationFilingOrgAmt | 1 | 168586 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusFilingOrganizationAmount | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusFilingOrganizationAmount | 1 | 1531 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusRelatedOrganizationsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/BonusRelatedOrganizationsAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompensationBasedOnRltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompensationBasedOnRltdOrgsAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990FilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990FilingOrgAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990RltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/CompReportPrior990RltdOrgsAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompensationFlngOrgAmt | 0 | 7044 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompensationFlngOrgAmt | 1 | 7105 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompRltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/DeferredCompRltdOrgsAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsFilingOrgAmt | 0 | 20819 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsFilingOrgAmt | 1 | 8629 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsRltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/NontaxableBenefitsRltdOrgsAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationFilingOrgAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationFilingOrgAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationRltdOrgsAmt | 0 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/OtherCompensationRltdOrgsAmt | 1 | 0 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 0 | ELIZABETH GREEN |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/PersonNm | 1 | REBECCA ROSS |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 0 | CEO AND EDITOR-IN-CHIEF |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TitleTxt | 1 | CHIEF OPERATING OFFICER |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationFilingOrgAmt | 0 | 195242 |
| IRS990ScheduleJ/RltdOrgOfficerTrstKeyEmplGrp/TotalCompensationFilingOrgAmt | 1 | 185851 |