| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 6474515 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 10010111 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 6803004 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 7216348 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | THE MISSION OF LOS ANGELES ORTHOPAEDIC HOSPITAL IS TO PROVIDE OUTSTANDING CARE TO PATIENTS WITH MUSCULOSKELETAL DISORDERS AND THROUGH THE SUPPORT OF THE ORTHOPAEDIC INSTITUTE FOR CHILDREN FOUNDATION, TO PROVIDE CARE FOR CHILDREN REGARDLESS OF ABILITY TO PAY AND TO ADVANCE CARE WORLDWIDE FOR ALL MUSCULOSKELETAL PATIENTS THROUGH MEDICAL EDUCATION AND SCIENTIFIC RESEARCH. |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 838558 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 838558 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 393062 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 619543 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 1012605 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BackupWthldComplianceInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | DIEMLAN TONNU |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 2137421044 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 403 WEST ADAMS BLVD |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | LOS ANGELES |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 900072664 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOfficerEntInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 1 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 777307 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 2042078 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 0 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 8 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 831169 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 1841204 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 2672373 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 1 |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 5836 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 6380 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 12216 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 0 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 1 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 675541 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 1 | 368132 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 2 | 321201 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 3 | 135190 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 4 | 125691 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 333 SOUTH HOPE ST |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 1 | 100 EAST WAYNE ST SUITE 300 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 2 | 1722 ROUTH STREET SUITE 900 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 3 | PO BOX 743295 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 4 | 1900 AVENUE OF THE STARS 28TH FLOO |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | LOS ANGELES |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 1 | SOUTH BEND |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 2 | DALLAS |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 3 | LOS ANGELES |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 4 | LOS ANGELES |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 1 | IN |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 2 | TX |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 3 | CA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 4 | CA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 90071 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 1 | 466012352 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 2 | 75201 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 3 | 90074 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 4 | 90067 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | KIRKLAND & ELLIS LLP |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 1 | LADUE CURRAN KUEHN LLC |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 2 | SPARKFARM LLC |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 3 | ROBERT HALF MANAGEMENT RESOURCES |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 4 | COHNREZNICK LLP |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | ATTORNEY FEES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 1 | ATTORNEY FEES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 2 | MARKETING & ADVERTISING |
| IRS990/ContractorCompensationGrp/ServicesDesc | 3 | STAFFING AGENCY |
| IRS990/ContractorCompensationGrp/ServicesDesc | 4 | AUDIT FEES |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 13535761 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 0 |
| IRS990/CYInvestmentIncomeAmt | 0 | 474539 |
| IRS990/CYOtherExpensesAmt | 0 | 45356635 |
| IRS990/CYOtherRevenueAmt | 0 | 732825 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 50996148 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | 4182703 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 16199935 |
| IRS990/CYTotalExpensesAmt | 0 | 61556570 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 0 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 0 |
| IRS990/CYTotalRevenueAmt | 0 | 65739273 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 0 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 98494 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 98689 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 2057140 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 2622 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 2059762 |
| IRS990/Desc | 0 | OUTPATIENT CLINICS - ORTHOPAEDIC HOSPITAL PROVIDES A WIDE RANGE OF PREVENTIVE RESTORATIVE HEALTH CARE SERVICES DESIGNED PARTICULARLY FOR CHILDREN WITH MUSCULOSKELETAL DISORDERS. SPECIFIC DISORDERS TREATED INCLUDE ORTHOPAEDIC TRAUMA, SPINA BIFIDA, CEREBRAL PALSY, CLUB FOOT, NEUROMUSCULAR DISORDERS, SPINAL DEFORMITY, HAND DEFORMITIES, MUSCULOSKELETAL TUMORS, HIP DYSPLASIA AND HEMOPHILIA. THERE WERE 70,042 OUTPATIENT VISITS FOR FISCAL YEAR 2018. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DoingBusinessAsName/BusinessNameLine1Txt | 0 | ORTHOPAEDIC INSTITUTE FOR CHILDREN |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 239 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/EscrowAccountInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 45147349 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 1027330 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 1575 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 1028905 |
| IRS990/FeesForServicesManagementGrp/ManagementAndGeneralAmt | 0 | 24900 |
| IRS990/FeesForServicesManagementGrp/ProgramServicesAmt | 0 | 3599 |
| IRS990/FeesForServicesManagementGrp/TotalAmt | 0 | 28499 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 1350770 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 3626264 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 4977034 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 58860 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 58860 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 0 | 12.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 1 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 2 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 3 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 4 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 5 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 6 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 7 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 8 | 1.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 9 | 12.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 10 | 12.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRltdOrgRt | 11 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 38.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 38.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 38.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 50.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 8.00 |
| 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/KeyEmployeeInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/KeyEmployeeInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/KeyEmployeeInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 0 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 1 | X |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 0 | 60536 |
| 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 | 34822 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 10 | 58823 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 16200 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 37277 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 50219 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 34213 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 27334 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 53431 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 59060 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | ANTHONY SCADUTO MD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | CINDY STARRETT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | EDWARD D FOX JR |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | FRANCIS J HORNICEK MD PHD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | HILARY A NORTON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | JOEL M BERNSTEIN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | PEVERLEY J HUKILL PHD |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | RICHARD E GISS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | STEVEN T VALENTINE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | DIEMLAN LANNIE TONNU |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | DEBRA MATHIAS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | MAURICIO SILVA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | MICHAEL SULLIVAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | ROBERT WARNOCK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | JENNIFER BECK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | RACHEL THOMPSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | RICHARD BOWEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | TIGRAN AVOIAN |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 852786 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 1 | 0 |
| 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 | 355877 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 282946 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 617180 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 385286 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 192920 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 404443 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 15 | 244394 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 532365 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 307467 |
| 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 | PRESIDENT & CEO |
| 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 | CFO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 10 | CHIEF OPERATING OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 11 | MEDICAL DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | VP/CHIEF PHILANTHROPY OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | MANAGER, NURSE PRACTITIONER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | PROFESSOR PHYSICIAN |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | PROFESSOR PHYSICIAN |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | PED ORTHO MD |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | URGENT CARE MD |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1923 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/ConsolidatedBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 9 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 0 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossReceiptsAmt | 0 | 65739273 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 0 |
| IRS990/IndependentVotingMemberCnt | 0 | 8 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 38 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIInd | 0 | X |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 398955 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 4747 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 403702 |
| IRS990/IntangibleAssetsGrp/BOYAmt | 0 | 75394 |
| IRS990/IntangibleAssetsGrp/EOYAmt | 0 | 40864 |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 593229 |
| IRS990/InterestGrp/TotalAmt | 0 | 593229 |
| IRS990/InventoriesForSaleOrUseGrp/BOYAmt | 0 | 568228 |
| IRS990/InventoriesForSaleOrUseGrp/EOYAmt | 0 | 1097801 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 474539 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 474539 |
| IRS990/InvestmentInJointVentureInd | 0 | 1 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 20638370 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 22147110 |
| IRS990/InvestTaxExemptBondsInd | 0 | 0 |
| IRS990/IRPDocumentCnt | 0 | 95 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 11358303 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 32018343 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 31248947 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 42607250 |
| IRS990/LegalDomicileStateCd | 0 | CA |
| IRS990/LoanOutstandingInd | 0 | 0 |
| IRS990/LobbyingActivitiesInd | 0 | 0 |
| 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/MissionDesc | 0 | THE MISSION OF LOS ANGELES ORTHOPAEDIC HOSPITAL IS TO PROVIDE OUTSTANDING CARE TO PATIENTS WITH MUSCULOSKELETAL DISORDERS AND THROUGH THE SUPPORT OF THE ORTHOPAEDIC INSTITUTE FOR CHILDREN FOUNDATION, TO PROVIDE CARE FOR CHILDREN REGARDLESS OF ABILITY TO PAY AND TO ADVANCE CARE WORLDWIDE FOR ALL MUSCULOSKELETAL PATIENTS THROUGH MEDICAL EDUCATION AND SCIENTIFIC RESEARCH. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 245081030 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 252714203 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 1093061 |
| IRS990/NondeductibleContributionsInd | 0 | 0 |
| IRS990/OccupancyGrp/ManagementAndGeneralAmt | 0 | 1040988 |
| IRS990/OccupancyGrp/TotalAmt | 0 | 1040988 |
| IRS990/OfficeExpensesGrp/ManagementAndGeneralAmt | 0 | 210919 |
| IRS990/OfficeExpensesGrp/ProgramServicesAmt | 0 | 680673 |
| IRS990/OfficeExpensesGrp/TotalAmt | 0 | 891592 |
| IRS990/OfficerMailingAddressInd | 0 | 0 |
| IRS990/OnBehalfOfIssuerInd | 0 | 0 |
| IRS990/OperateHospitalInd | 0 | 0 |
| IRS990/Organization501c3Ind | 0 | X |
| IRS990/OrganizationFollowsSFAS117Ind | 0 | X |
| IRS990/OtherAssetsTotalGrp/BOYAmt | 0 | 196986306 |
| IRS990/OtherAssetsTotalGrp/EOYAmt | 0 | 217387409 |
| IRS990/OtherChangesInNetAssetsAmt | 0 | 2357409 |
| IRS990/OtherEmployeeBenefitsGrp/ManagementAndGeneralAmt | 0 | 413055 |
| IRS990/OtherEmployeeBenefitsGrp/ProgramServicesAmt | 0 | 772515 |
| IRS990/OtherEmployeeBenefitsGrp/TotalAmt | 0 | 1185570 |
| IRS990/OtherExpensesGrp/Desc | 0 | PLASMA CONCENTRATE |
| IRS990/OtherExpensesGrp/Desc | 1 | RESEARCH PROJECTS |
| IRS990/OtherExpensesGrp/Desc | 2 | OTHER SUPPLIES |
| IRS990/OtherExpensesGrp/Desc | 3 | OTHER DIRECT EXPENSES |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 0 | 138639 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 1 | 25683 |
| IRS990/OtherExpensesGrp/ManagementAndGeneralAmt | 2 | 96084 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 0 | 29118837 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 1 | 1133969 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 2 | 1195127 |
| IRS990/OtherExpensesGrp/ProgramServicesAmt | 3 | 586498 |
| IRS990/OtherExpensesGrp/TotalAmt | 0 | 29118837 |
| IRS990/OtherExpensesGrp/TotalAmt | 1 | 1272608 |
| IRS990/OtherExpensesGrp/TotalAmt | 2 | 1220810 |
| IRS990/OtherExpensesGrp/TotalAmt | 3 | 682582 |
| IRS990/OtherLiabilitiesGrp/BOYAmt | 0 | 1815006 |
| IRS990/OtherLiabilitiesGrp/EOYAmt | 0 | 16770502 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 0 | 900099 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 1 | 900099 |
| IRS990/OtherRevenueMiscGrp/BusinessCd | 2 | 812930 |
| IRS990/OtherRevenueMiscGrp/Desc | 0 | PURCHASE DISCOUNTS |
| IRS990/OtherRevenueMiscGrp/Desc | 1 | OTHER REVENUE |
| IRS990/OtherRevenueMiscGrp/Desc | 2 | PARKING REVENUE |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 0 | 384246 |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 1 | 287190 |
| IRS990/OtherRevenueMiscGrp/RelatedOrExemptFuncIncomeAmt | 2 | 61389 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 0 | 384246 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 1 | 287190 |
| IRS990/OtherRevenueMiscGrp/TotalRevenueColumnAmt | 2 | 61389 |
| IRS990/OtherRevenueTotalAmt | 0 | 732825 |
| IRS990/OtherSalariesAndWagesGrp/ManagementAndGeneralAmt | 0 | 3209889 |
| IRS990/OtherSalariesAndWagesGrp/ProgramServicesAmt | 0 | 7429617 |
| IRS990/OtherSalariesAndWagesGrp/TotalAmt | 0 | 10639506 |
| IRS990/OthNotesLoansReceivableNetGrp/BOYAmt | 0 | 17129650 |
| IRS990/OthNotesLoansReceivableNetGrp/EOYAmt | 0 | 17129650 |
| IRS990/PartialLiquidationInd | 0 | 0 |
| IRS990/PayPremiumsPrsnlBnftCntrctInd | 0 | 0 |
| IRS990/PayrollTaxesGrp/ManagementAndGeneralAmt | 0 | 248168 |
| IRS990/PayrollTaxesGrp/ProgramServicesAmt | 0 | 572340 |
| IRS990/PayrollTaxesGrp/TotalAmt | 0 | 820508 |
| IRS990/PensionPlanContributionsGrp/ManagementAndGeneralAmt | 0 | 534160 |
| IRS990/PensionPlanContributionsGrp/ProgramServicesAmt | 0 | 347818 |
| IRS990/PensionPlanContributionsGrp/TotalAmt | 0 | 881978 |
| IRS990/PermanentlyRstrNetAssetsGrp/BOYAmt | 0 | 18135442 |
| IRS990/PermanentlyRstrNetAssetsGrp/EOYAmt | 0 | 14743226 |
| IRS990/PoliticalCampaignActyInd | 0 | 0 |
| IRS990/PrepaidExpensesDefrdChargesGrp/BOYAmt | 0 | 247443 |
| IRS990/PrepaidExpensesDefrdChargesGrp/EOYAmt | 0 | 183298 |
| IRS990/PrincipalOfficerNm | 0 | ANTHONY SCADUTO MD |
| IRS990/ProfessionalFundraisingInd | 0 | 0 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 0 | 621400 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 1 | 900099 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 2 | 900099 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 3 | 541700 |
| IRS990/ProgramServiceRevenueGrp/BusinessCd | 4 | 531390 |
| IRS990/ProgramServiceRevenueGrp/Desc | 0 | OUTPATIENT CLINICS |
| IRS990/ProgramServiceRevenueGrp/Desc | 1 | UCLA - ALLIANCE REVENUE |