Liabilities / Assets
19th percentile
Higher debt load relative to assets than 19% of similar nonprofits.
EIN 94-2392007 • 501(c)3 • Palo Alto, CA
Profile
Post protects open space on the peninsula and in the south bay for the benefit of all. Post is creating a network of protected lands where people and nature connect and thrive. These lands are preserved forever so present and future generations benefit from the careful... Balance of rural and urban landscapes that make our region extraordinary.
Precomputed percentiles relative to similar nonprofits. These scores are descriptive rather than judgmental.
Liabilities / Assets
19th percentile
Higher debt load relative to assets than 19% of similar nonprofits.
Liabilities / Revenue
68th percentile
Higher debt load relative to revenue than 68% of similar nonprofits.
Net Margin
10th percentile
Higher net margin than 10% of similar nonprofits.
Top Officer Pay
23rd percentile
Higher top officer pay than 23% of similar nonprofits.
Top officer pay equals 1.1% of source-year revenue.
Asset Growth
51st percentile
Faster asset growth than 51% of similar nonprofits.
Revenue Growth
9th percentile
Faster revenue growth than 9% of similar nonprofits.
Assets
Up$339,333,871
Up $2,367,846 (+0.7%) from 2023
Liabilities
Down$11,139,198
Down $8,123,206 (-42%) from 2023
Net Assets
Up$328,194,673
Up $10,491,052 (+3.3%) from 2023
Revenue
Up$30,308,636
Up $5,554,473 (+22%) from 2023
Expenses
Up$33,859,528
Up $4,847,162 (+17%) from 2023
Net Income
Up-$3,550,892
Up $707,311 (+17%) from 2023
Most recent year
2024 • Form 990Detailed filing. Detailed filing data is available for this year.
Peninsula Open Space Trust (POST) protects and cares for open space, farms and parkland in and around Silicon Valley. Since its founding in 1977, POST has saved more than 75,000 acres of permanently protected land in San Mateo, Santa Clara and Santa Cruz counties.
Post protects open space on the peninsula and in the south bay for the benefit of all.
| Line | Beginning | End | Change |
|---|---|---|---|
| Assets | |||
| Investments in Publicly Traded Securities | $147,599,522 | $179,008,192 | ▲ $31,408,670 |
| Investments Other Securities | $6,330,277 | $6,782,534 | ▲ $452,257 |
| Land, Buildings, and Equipment, Net | $6,759,287 | $6,510,021 | ▼ $249,266 |
| Pledges and Grants Receivable | $6,717,548 | $5,046,514 | ▼ $1,671,034 |
| Other Notes and Loans Receivable, Net | $24,761,744 | $2,301,796 | ▼ $22,459,948 |
| Savings and Temporary Cash Investments | $1,289,998 | $1,614,218 | ▲ $324,220 |
| Accounts Receivable | $840,188 | $1,068,677 | ▲ $228,489 |
| Prepaid Expenses and Deferred Charges | $311,623 | $300,782 | ▼ $10,841 |
| Cash and Non-Interest-Bearing Accounts | $115,767 | $26,458 | ▼ $89,309 |
| Total Assets | $336,966,025 | $339,333,871 | ▲ $2,367,846 |
| Other Assets Total | $142,240,071 | $136,674,679 | ▼ $5,565,392 |
| Liabilities | |||
| Other Liabilities | $4,805,179 | $4,627,374 | ▼ $177,805 |
| Accounts Payable and Accrued Expenses | $3,115,719 | $3,584,305 | ▲ $468,586 |
| Deferred Revenue | $3,000,000 | $2,826,200 | ▼ $173,800 |
| Mortgage Notes Payable Secured by Investment Property | $8,341,506 | $101,319 | ▼ $8,240,187 |
| Total Liabilities | $19,262,404 | $11,139,198 | ▼ $8,123,206 |
| Net Assets / Fund Balance | |||
| Net Assets Without Donor Restrictions | $300,507,034 | $311,524,699 | ▲ $11,017,665 |
| Net Assets With Donor Restrictions | $17,196,587 | $16,669,974 | ▼ $526,613 |
| Total Net Assets Fund Balance | $317,703,621 | $328,194,673 | ▲ $10,491,052 |
| Total Liabilities and Net Assets / Fund Balance | $336,966,025 | $339,333,871 | ▲ $2,367,846 |
| Asset | Book Value | Depreciation | Basis |
|---|---|---|---|
| Buildings | $3,596,341 | $1,891,559 | $5,487,900 |
| Land | $2,351,899 | - | $2,351,899 |
| Other Land Buildings | $450,478 | $216,221 | $666,699 |
| Equipment | $111,303 | $339,227 | $450,530 |
| Other Assets Org | $135,487,127 | - | - |
| Period | Beginning | Contrib. | Gain/Loss | Other Uses | End |
|---|---|---|---|---|---|
| 2023 | $861,838 | $50,000 | ▲ $105,442 | $12,362 | $1,004,918 |
| 2022 | $810,297 | - | ▲ $77,683 | $26,142 | $861,838 |
| 2021 | $937,943 | - | ▼ $102,092 | $25,554 | $810,297 |
| 2020 | $768,258 | - | ▲ $207,183 | $37,498 | $937,943 |
| 2019 | $767,495 | - | ▲ $31,201 | $30,438 | $768,258 |
| Name | Title | Full / Part Time | Base | Other | Total |
|---|---|---|---|---|---|
| Walter T Moore | President | FT | $366,707 | $110,756 | $477,463 |
| Mark Stevens | Treasurer & CFO/COO | FT | $287,082 | $75,760 | $362,842 |
| Martha Tedesco | Chief Marketing Officer | FT | $248,955 | $75,612 | $324,567 |
| Gordon Clark | Vice President of Development | FT | $255,085 | $54,500 | $309,585 |
| Diane Cordova | Chief Talent Officer | FT | $199,951 | $96,703 | $296,654 |
| Noelle Chambers | Vice President of Conservation | FT | $244,743 | $46,911 | $291,654 |
| Patrick Marshall | General Counsel | FT | $193,854 | $42,041 | $235,895 |
| Justin Eliot | Director of Finance | FT | $202,798 | $24,636 | $227,434 |
| Jeanine Crider | Director of Planned Giving | FT | $170,052 | $50,648 | $220,700 |
| Olivia White Lopez | Director of Diversity Equity and Inclusion | FT | $179,826 | $27,166 | $206,992 |
| Olivia White Lopez | Director of Diversity Equity and Inc | - | $176,275 | $30,717 | $206,992 |
| Name | Title |
|---|---|
| Rajesh Mashruwala | Chair & Director |
| Wende Hutton | Vice Chair & Director |
| Alisa Macavoy | Director |
| Andrew Bosworth | Director |
| Dennis Debroeck | Director |
| Emerick Woods | Director |
| Jennifer Lynch | Director |
| Kalle Dahl | Director |
| Katherine Tsai | Director |
| Ken Yeager | Director |
| Nanhi Singh | Director |
| Paul Simpson | Director |
| Rod Ferguson | Director |
| Sanjay Vaswani | Director |
| Sean Dempsey | Director |
| Suzanne Sullivan | Director |
| BRAD O'BRIEN | Secretary |
| Contractor | Services | Location | Compensation |
|---|---|---|---|
| Shute Mihaly & Weinberger LLP | Legal Services | 396 HAYES ST, San Francisco, CA 94102 | $465,215 |
| Bw Engineering | Property Maintenance | 2600 SMITH GRADE RD, Santa Cruz, CA 95060 | $161,470 |
| M&h LLP | Property Maintenance | 225 THE CROSSROADS 135, Carmel, CA 93923 | $133,756 |
| Alta Planning & Design | Legal Services | 525 MIDDLEFIELD RD 250, Menlo Park, CA 94025 | $108,792 |
| - | Land Projects | 304 12TH STREET SUITE 2A, Oakland, CA 94607 | $104,602 |
| Contribution Type | Contribution Count | Reported Amount | Valuation Method |
|---|---|---|---|
| Real Estate Residential | 1 | $1,900,000 | Sale Price |
| Securities Publicly Traded | 33 | $1,846,135 | Avg Hi/low Gift Date |
| Qualified Contrib Other | 1 | $525,000 | Appraisal |
| Other Non Cash Contri Table | 1 | $1,568 | Fair Market Value (FMV) |
| Total Noncash Contributions | 36 | $4,272,703 | - |
| Line Item | Amount |
|---|---|
| Other Expenses | $12,582,112 |
| Salaries, Compensation, and Employee Benefits | $10,790,434 |
| Grants and Similar Amounts Paid | $10,247,709 |
| Total Fundraising Expense | $3,835,871 |
| Professional Fundraising Fees | $239,273 |
| Line Item | Program | Management | Fundraising | Total |
|---|---|---|---|---|
| Grants to Domestic Orgs | $10,247,709 | - | - | $10,247,709 |
| Other Salaries and Wages | $4,105,351 | $1,320,673 | $1,622,271 | $7,048,295 |
| Fees for Services Other | $2,648,959 | $271,461 | $179,435 | $3,099,855 |
| Current Officers, Directors, Trustees, and Key Employees | $797,860 | $572,004 | $555,616 | $1,925,480 |
| Fees for Services Legal | $758,060 | $112,986 | - | $871,046 |
| Other Employee Benefits | $478,506 | $153,933 | $189,087 | $821,526 |
| Advertising | $658,757 | - | $35,014 | $693,771 |
| Information Technology | $295,823 | $78,105 | $154,060 | $527,988 |
| Pension Plan Contributions | $278,958 | $113,749 | $115,443 | $508,150 |
| Payroll Taxes | $283,345 | $90,825 | $112,813 | $486,983 |
| Fees for Services Lobbying | $455,000 | - | - | $455,000 |
| Office Expenses | $111,353 | $26,194 | $217,522 | $355,069 |
| Interest | $12,854 | $301,240 | - | $314,094 |
| Fees for Service Investment Mgmnt Fees | - | $304,772 | - | $304,772 |
| Other Expenses | $97,692 | $2,523 | $191,528 | $291,743 |
| Depreciation Depletion | $162,079 | $49,913 | $62,821 | $274,813 |
| Conferences and Meetings | $144,905 | $77,889 | $50,309 | $273,103 |
| Insurance | $177,705 | $68,412 | - | $246,117 |
| Fees for Services Professional Fundraising | - | - | $239,273 | $239,273 |
| All Other Expenses | $62,750 | $41,525 | $96,677 | $200,952 |
| Fees for Services Accounting | - | $57,891 | - | $57,891 |
| Travel | $26,343 | $5,759 | $5,749 | $37,851 |
| Total Functional Expenses | $26,326,538 | $3,697,119 | $3,835,871 | $33,859,528 |
| Line Item | Amount |
|---|---|
| Total Expenses per Form 990 | $33,859,528 |
| Total Expenses per Audited Statements | $33,568,482 |
| Expenses per Audited Statements | $33,554,755 |
| Expenses Not Reported on Financial Statements | $304,773 |
| Expenses Not Reported on Form 990 | $13,727 |
| Recipient | Location | Category | Purpose | Amount |
|---|---|---|---|---|
| Santa Clara Valley Habitat Agency | Morgan Hill, CA | Government | Donation of Land Fka Lakeside Ranch, Financial Assistance to Support Bates Ranch Acquisition | $2,200,000 |
| The Trust for Public Land | San Francisco, CA | 501c3 | Financial Assistance to Support Purchase of Searle Road Property | $300,000 |
| Santa Clara Valley Open Space Authority | San Jose, CA | Government | Support for Coyote Valley Conservation Area Master Plan (cvcamp) | $80,000 |
| La Honda-pescadero Unified School District | Pescadero, CA | Government | Payment in Lieu of Property Taxes | $58,373 |
| Amah Mutsun Land Trust | Los Altos, CA | 501c3 | Support for General Operations | $50,000 |
| San Mateo Resource Conservation District | Half Moon Bay, CA | Government | Support for General Operations and Santa Cruz Mountains Stewardship Network | $45,000 |
| California Council of Land Trusts | Sacramento, CA | 501c3 | Sponsorship of CA Land and Water Conservation Conference | $30,000 |
| Epacenter | East Palo Alto, CA | C-corporation | Support for General Operations | $30,000 |
| San Mateo County Parks & Recreation Foundation | San Mateo, CA | 501c3 | Support for Costs Sam Mcdonald Park to the National Register of Historic Places | $20,000 |
| Land Trust of Santa Cruz County | Santa Cruz, CA | 501c3 | Support for Mastication Equipment Purchase | $19,136 |
| Canopy | Palo Alto, CA | 501c3 | Support for General Operations | $10,000 |
| Climate Resilient Communities | Palo Alto, CA | 501c3 | Support for General Operations | $10,000 |
| Multiplier | San Francisco, CA | 501c3 | Support to Develop Sustainable Farms | $10,000 |
| Nuestra Casa De East Palo Alto | East Palo Alto, CA | 501c3 | Support for General Operations | $10,000 |
| Puente De La Costa Sur | Pescadero, CA | 501c3 | Support for 2024 Farmworker Convention | $10,000 |
| Saved by Nature | Campbell, CA | 501c3 | Support for General Operations | $10,000 |
| Together Bay Area | Berkeley, CA | 501c3 | 2024 Conference Sponsorship | $10,000 |
| Pescadero Education Foundation | Pescadero, CA | 501c3 | Support for Pescadero Outdoor Athletics Program | $8,500 |
| San Benito Agricultural Land Trust | San Juan Bautista, CA | 501c3 | Support for General Operations | $8,200 |
| San Benito County Resource Conservation District | Hollister, CA | Government | Support for General Operations | $7,500 |
| Line Item | Amount |
|---|---|
| Professional Fundraising Fees | $239,273 |
| Liability | Amount |
|---|---|
| Liability Under Crut | $2,539,369 |
| Asset Retirement Obligations | $1,616,814 |
| Stewardship Liabilities | $471,191 |
“Clarifications to exempt purpose and geographic area of focus.”
“Each year, prior to submission, the audit committee shall ensure that post's form 990 is reviewed by a member of the committee or a designee of the committee with appropriate qualifications. In addition, the draft submission will be made available to the board prior to filing.”
“When joining the organization, and on an annual basis, board members, members of the investment and audit committees, and all staff fill out a conflict of interest statement. If a change in a person's material interest in a matter that could affect post occurs, that person must amend the conflict of interest statement. All disclosure statements shall be reviewed by the chair of the board governance committee and president.”
“The budget & compensation committee sets the salary of the president and reviews and approves the salaries of the executive team members. The budget & comp committee also reviews and establishes the compensation philosophy, competitive positioning, and salary structure for the rest of the staff and approves all changes to benefits policies. The budget and budget & compensation committee is charged with recommending to the board of directors a compensation package, including base salary, benefits, and retirement contributions, for the president and cfo. When considering the compensation package, the committee reviews compensation of executives of comparable non-profit organizations locally and throughout the united states as well as market data from our compensation consultants and various compensation surveys. The board of directors approves the recommended compensation package on an annual basis before the start of the fiscal year or before the effective date of any change in compensation.”
“The organization makes governing documents and the conflict of interest policy available to the public upon request. The organization's audited financial statements and form 990 are made available via the organization's website each year.”
“The organization maintains an audit committee whose duties and responsibilities include recommending to the board of directors the retention and termination of an independent auditor and determining whether to accept the auditor's annual audit of the organization's financial statements. No change to the process occurred for the fye 6/30/2024.”
“Post monitors all of its conservation easements at least annually in order to 1) observe the condition of the property in order to determine whether it is in compliance with easement terms; 2) create a record of easement stewardship and property condition over time; and 3) maintain a working relationship with the landowner. It is post's policy to uphold its conservation easements as written and to identify, investigate, evaluate and respond to any potential violations as quickly as possible. In the case of a material violation, post will require cessation, repair, and/or mitigation of any damage to protected conservation values. Post is prepared to take legal action to defend its rights as easement holder if necessary. Post has a conservation easement stewardship fund to... Provide resources for legal defense and maintains conservation defense insurance through terrafirma rrg llc. Conservation easement documents clearly describe the process for enforcing the terms of the easement should any violation be identified to ensure that corrective actions are taken to cure the violation.”
“The organization periodically receives or purchases conservation easements which limit the allowable uses of the related property to open space uses consistent with the organization's mission. Contributed conservation easements received are recorded as land contributions based on the estimated value given up by the land owner by restricting the use of the property with an easement. Conservation easements purchased bear no future benefit to the organization and are therefore included as part of land and easement transactions expense in the year they are acquired. In connection with the transfer or sale of land, the organization may retain a conservation easement on the land. Because these easements bear no possible future financial benefit to the organization, they are not recorded on the organization's statement of financial position. Sometimes, the organization may transfer a conservation easement to a nonprofit or public agency partner while retaining ownership of the property.”
“Joan and mel lane fund for land stweardship endowment: these funds may be used for expenses to maintain trails, remove invasive and exotic species, undertake erosion prevention and repair, and restore plant and animal habitats. Wilbur's watch endowment: this grant is restricted to activities... Related to the maintenance of the trail at wilbur's watch on post's cloverdale property. This includes such items as annual stewardship such as mowing, pampas grass removal, and monitoring; replacement of items such as the bench, telescope, and signage; and repair of the trail. General endowment: these funds can be used for any organizational expenses.”
“The organization evaluates its uncertain tax positions and will recognize a loss contingency when it is probable that a liability has been incurred as of the date of the financial statements and the amount of the loss can be reasonably estimated. The amount recognized is subject to estimate and management judgment with respect to the likely outcome of each uncertain tax position. The amount that is ultimately sustained for an individual uncertain tax position for all uncertain tax positions in the aggregate could differ from the amount recognized. As of june 30, 2024 management did not identify any uncertain tax positions.”
This appendix keeps the raw XML leaves available for debugging and edge-case review. The human report above is the primary experience.
| Path | # | Value |
|---|---|---|
| IRS990/AccountantCompileOrReviewInd | 0 | 0 |
| IRS990/AccountsPayableAccrExpnssGrp/BOYAmt | 0 | 3115719 |
| IRS990/AccountsPayableAccrExpnssGrp/EOYAmt | 0 | 3584305 |
| IRS990/AccountsReceivableGrp/BOYAmt | 0 | 840188 |
| IRS990/AccountsReceivableGrp/EOYAmt | 0 | 1068677 |
| IRS990/ActivitiesConductedPrtshpInd | 0 | 0 |
| IRS990/ActivityOrMissionDesc | 0 | POST PROTECTS OPEN SPACE ON THE PENINSULA AND IN THE SOUTH BAY FOR THE BENEFIT OF ALL. |
| IRS990/AdvertisingGrp/FundraisingAmt | 0 | 35014 |
| IRS990/AdvertisingGrp/ProgramServicesAmt | 0 | 658757 |
| IRS990/AdvertisingGrp/TotalAmt | 0 | 693771 |
| IRS990/AllOtherContributionsAmt | 0 | 24153903 |
| IRS990/AllOtherExpensesGrp/FundraisingAmt | 0 | 96677 |
| IRS990/AllOtherExpensesGrp/ManagementAndGeneralAmt | 0 | 41525 |
| IRS990/AllOtherExpensesGrp/ProgramServicesAmt | 0 | 62750 |
| IRS990/AllOtherExpensesGrp/TotalAmt | 0 | 200952 |
| IRS990/AnnualDisclosureCoveredPrsnInd | 0 | 1 |
| IRS990/AuditCommitteeInd | 0 | 1 |
| IRS990/BooksInCareOfDetail/BusinessName/BusinessNameLine1Txt | 0 | MARK STEVENS |
| IRS990/BooksInCareOfDetail/PhoneNum | 0 | 6508547696 |
| IRS990/BooksInCareOfDetail/USAddress/AddressLine1Txt | 0 | 222 HIGH STREET |
| IRS990/BooksInCareOfDetail/USAddress/CityNm | 0 | PALO ALTO |
| IRS990/BooksInCareOfDetail/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/BooksInCareOfDetail/USAddress/ZIPCd | 0 | 94301 |
| IRS990/BusinessRlnWith35CtrlEntInd | 0 | 0 |
| IRS990/BusinessRlnWithFamMemInd | 0 | 0 |
| IRS990/BusinessRlnWithOrgMemInd | 0 | 0 |
| IRS990/CashNonInterestBearingGrp/BOYAmt | 0 | 115767 |
| IRS990/CashNonInterestBearingGrp/EOYAmt | 0 | 26458 |
| IRS990/ChangeToOrgDocumentsInd | 0 | 1 |
| IRS990/CntrctRcvdGreaterThan100KCnt | 0 | 5 |
| IRS990/CollectionsOfArtInd | 0 | 0 |
| IRS990/CompCurrentOfcrDirectorsGrp/FundraisingAmt | 0 | 555616 |
| IRS990/CompCurrentOfcrDirectorsGrp/ManagementAndGeneralAmt | 0 | 572004 |
| IRS990/CompCurrentOfcrDirectorsGrp/ProgramServicesAmt | 0 | 797860 |
| IRS990/CompCurrentOfcrDirectorsGrp/TotalAmt | 0 | 1925480 |
| IRS990/CompensationFromOtherSrcsInd | 0 | 0 |
| IRS990/CompensationProcessCEOInd | 0 | 1 |
| IRS990/CompensationProcessOtherInd | 0 | 1 |
| IRS990/ConferencesMeetingsGrp/FundraisingAmt | 0 | 50309 |
| IRS990/ConferencesMeetingsGrp/ManagementAndGeneralAmt | 0 | 77889 |
| IRS990/ConferencesMeetingsGrp/ProgramServicesAmt | 0 | 144905 |
| IRS990/ConferencesMeetingsGrp/TotalAmt | 0 | 273103 |
| IRS990/ConflictOfInterestPolicyInd | 0 | 1 |
| IRS990/ConservationEasementsInd | 0 | 1 |
| IRS990/ConsolidatedAuditFinclStmtInd | 0 | 0 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 0 | 465215 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 1 | 161470 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 2 | 133756 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 3 | 108792 |
| IRS990/ContractorCompensationGrp/CompensationAmt | 4 | 104602 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 0 | 396 HAYES ST |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 1 | 2600 SMITH GRADE RD |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 2 | 225 THE CROSSROADS 135 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 3 | 525 MIDDLEFIELD RD 250 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/AddressLine1Txt | 4 | 304 12TH STREET SUITE 2A |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 0 | SAN FRANCISCO |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 1 | SANTA CRUZ |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 2 | CARMEL |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 3 | MENLO PARK |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/CityNm | 4 | OAKLAND |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 0 | CA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 1 | CA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 2 | CA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 3 | CA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/StateAbbreviationCd | 4 | CA |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 0 | 94102 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 1 | 95060 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 2 | 93923 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 3 | 94025 |
| IRS990/ContractorCompensationGrp/ContractorAddress/USAddress/ZIPCd | 4 | 94607 |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 0 | SHUTE MIHALY & WEINBERGER LLP |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 1 | BW ENGINEERING |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 2 | M&H LLP |
| IRS990/ContractorCompensationGrp/ContractorName/BusinessName/BusinessNameLine1Txt | 3 | ALTA PLANNING & DESIGN |
| IRS990/ContractorCompensationGrp/ContractorName/PersonNm | 0 | AARON LINGMANN EARTH FLOW DRILLING |
| IRS990/ContractorCompensationGrp/ServicesDesc | 0 | LEGAL SERVICES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 1 | PROPERTY MAINTENANCE |
| IRS990/ContractorCompensationGrp/ServicesDesc | 2 | PROPERTY MAINTENANCE |
| IRS990/ContractorCompensationGrp/ServicesDesc | 3 | LEGAL SERVICES |
| IRS990/ContractorCompensationGrp/ServicesDesc | 4 | LAND PROJECTS |
| IRS990/CreditCounselingInd | 0 | 0 |
| IRS990/CYBenefitsPaidToMembersAmt | 0 | 0 |
| IRS990/CYContributionsGrantsAmt | 0 | 24688844 |
| IRS990/CYGrantsAndSimilarPaidAmt | 0 | 10247709 |
| IRS990/CYInvestmentIncomeAmt | 0 | 4843028 |
| IRS990/CYOtherExpensesAmt | 0 | 12582112 |
| IRS990/CYOtherRevenueAmt | 0 | 353823 |
| IRS990/CYProgramServiceRevenueAmt | 0 | 422941 |
| IRS990/CYRevenuesLessExpensesAmt | 0 | -3550892 |
| IRS990/CYSalariesCompEmpBnftPaidAmt | 0 | 10790434 |
| IRS990/CYTotalExpensesAmt | 0 | 33859528 |
| IRS990/CYTotalFundraisingExpenseAmt | 0 | 3835871 |
| IRS990/CYTotalProfFndrsngExpnsAmt | 0 | 239273 |
| IRS990/CYTotalRevenueAmt | 0 | 30308636 |
| IRS990/DecisionsSubjectToApprovaInd | 0 | 0 |
| IRS990/DeductibleArtContributionInd | 0 | 0 |
| IRS990/DeductibleNonCashContriInd | 0 | 1 |
| IRS990/DeferredRevenueGrp/BOYAmt | 0 | 3000000 |
| IRS990/DeferredRevenueGrp/EOYAmt | 0 | 2826200 |
| IRS990/DelegationOfMgmtDutiesInd | 0 | 0 |
| IRS990/DepreciationDepletionGrp/FundraisingAmt | 0 | 62821 |
| IRS990/DepreciationDepletionGrp/ManagementAndGeneralAmt | 0 | 49913 |
| IRS990/DepreciationDepletionGrp/ProgramServicesAmt | 0 | 162079 |
| IRS990/DepreciationDepletionGrp/TotalAmt | 0 | 274813 |
| IRS990/Desc | 0 | LAND ACQUISITION & TRANSFER:IN FISCAL YEAR 2024, POST COMPLETED AND ASSISTED A TOTAL OF 6 TRANSACTIONS THAT PROTECTED 1,141 ACRES WHILE ADVANCING SEVERAL OTHER LONGER-TERM ACQUISITIONS AND TRANSFERS.LAND TRANSACTIONS ASSISTED THE HABITAT AGENCY AND SANTA CLARA COUNTY PARKS IN PROTECTING 735 ACRES AT THE BASE OF MOUNT MADONNA IN THE SOUTHERN SANTA CRUZ MOUNTAINS. ASSISTED THE TRUST FOR PUBLIC LAND IN SECURING A 50-ACRE PROPERTY IN SAN BENITO COUNTY FOR FUTURE TRANSFER TO AMAH MUTSUN LAND TRUST. ACQUIRED A 50% INTEREST IN THE 356-ACRE EL MIRADOR PROPERTY IN PORTOLA VALLEY, ADJACENT TO WINDY HILL OPEN SPACE PRESERVE. TRANSFERRED 1,908 ACRES OF LAKESIDE RANCH TO THE SANTA CLARA VALLEY HABITAT AGENCY. TRANSFERRED 644 ACRES OF JOHNSTON RANCH IN HALF MOON BAY TO THE MIDPENINSULA REGIONAL OPEN SPACE DISTRICT. TRANSFERRED THE 74-ACRE SAN GREGORIO FARM PROPERTY TO RYAN CASEY, OWNER/OPERATOR OF BLUE HOUSE FARM, SUBJECT TO AN AGRICULTURAL CONSERVATION EASEMENT. |
| IRS990/DescribedInSection501c3Ind | 0 | 1 |
| IRS990/DisregardedEntityInd | 0 | 0 |
| IRS990/DocumentRetentionPolicyInd | 0 | 1 |
| IRS990/DonorAdvisedFundInd | 0 | 0 |
| IRS990/DonorRestrictionNetAssetsGrp/BOYAmt | 0 | 17196587 |
| IRS990/DonorRestrictionNetAssetsGrp/EOYAmt | 0 | 16669974 |
| IRS990/DonorRstrOrQuasiEndowmentsInd | 0 | 1 |
| IRS990/ElectionOfBoardMembersInd | 0 | 0 |
| IRS990/EmployeeCnt | 0 | 64 |
| IRS990/EmploymentTaxReturnsFiledInd | 0 | 1 |
| IRS990/EngagedInExcessBenefitTransInd | 0 | 0 |
| IRS990/ExpenseAmt | 0 | 19063688 |
| IRS990/FamilyOrBusinessRlnInd | 0 | 0 |
| IRS990/FederalGrantAuditRequiredInd | 0 | 0 |
| IRS990/FeesForServicesAccountingGrp/ManagementAndGeneralAmt | 0 | 57891 |
| IRS990/FeesForServicesAccountingGrp/TotalAmt | 0 | 57891 |
| IRS990/FeesForServicesLegalGrp/ManagementAndGeneralAmt | 0 | 112986 |
| IRS990/FeesForServicesLegalGrp/ProgramServicesAmt | 0 | 758060 |
| IRS990/FeesForServicesLegalGrp/TotalAmt | 0 | 871046 |
| IRS990/FeesForServicesLobbyingGrp/ProgramServicesAmt | 0 | 455000 |
| IRS990/FeesForServicesLobbyingGrp/TotalAmt | 0 | 455000 |
| IRS990/FeesForServicesOtherGrp/FundraisingAmt | 0 | 179435 |
| IRS990/FeesForServicesOtherGrp/ManagementAndGeneralAmt | 0 | 271461 |
| IRS990/FeesForServicesOtherGrp/ProgramServicesAmt | 0 | 2648959 |
| IRS990/FeesForServicesOtherGrp/TotalAmt | 0 | 3099855 |
| IRS990/FeesForServicesProfFundraising/FundraisingAmt | 0 | 239273 |
| IRS990/FeesForServicesProfFundraising/TotalAmt | 0 | 239273 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/ManagementAndGeneralAmt | 0 | 304772 |
| IRS990/FeesForSrvcInvstMgmntFeesGrp/TotalAmt | 0 | 304772 |
| IRS990/ForeignActivitiesInd | 0 | 0 |
| IRS990/ForeignFinancialAccountInd | 0 | 0 |
| IRS990/ForeignOfficeInd | 0 | 0 |
| IRS990/Form8282PropertyDisposedOfInd | 0 | 0 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 0 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 1 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 2 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 3 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 4 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 5 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 6 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 7 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 8 | 5.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 9 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 10 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 11 | 4.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 12 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 13 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 14 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 15 | 3.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 16 | 2.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 17 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 18 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 19 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 20 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 21 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 22 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 23 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 24 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 25 | 40.00 |
| IRS990/Form990PartVIISectionAGrp/AverageHoursPerWeekRt | 26 | 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/IndividualTrusteeOrDirectorInd | 12 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 13 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 14 | X |
| IRS990/Form990PartVIISectionAGrp/IndividualTrusteeOrDirectorInd | 15 | 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/OfficerInd | 2 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 3 | X |
| IRS990/Form990PartVIISectionAGrp/OfficerInd | 4 | 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 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 17 | 80138 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 18 | 69258 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 19 | 69843 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 20 | 41693 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 21 | 53390 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 22 | 66983 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 23 | 20509 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 24 | 36872 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 25 | 46981 |
| IRS990/Form990PartVIISectionAGrp/OtherCompensationAmt | 26 | 27166 |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 0 | RAJESH MASHRUWALA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 1 | WENDE HUTTON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 2 | ANDREW BOSWORTH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 3 | KALLE DAHL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 4 | DENNIS DEBROECK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 5 | SEAN DEMPSEY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 6 | ROD FERGUSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 7 | JENNIFER LYNCH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 8 | ALISA MACAVOY |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 9 | PAUL SIMPSON |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 10 | NANHI SINGH |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 11 | SUZANNE SULLIVAN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 12 | KATHERINE TSAI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 13 | SANJAY VASWANI |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 14 | EMERICK WOODS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 15 | KEN YEAGER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 16 | BRAD O'BRIEN |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 17 | WALTER T MOORE |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 18 | MARK STEVENS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 19 | MARTHA TEDESCO |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 20 | NOELLE CHAMBERS |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 21 | GORDON CLARK |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 22 | DIANE CORDOVA |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 23 | JUSTIN ELIOT |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 24 | PATRICK MARSHALL |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 25 | JEANINE CRIDER |
| IRS990/Form990PartVIISectionAGrp/PersonNm | 26 | OLIVIA WHITE LOPEZ |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 0 | 0 |
| 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 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 10 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 11 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 12 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 13 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 14 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 15 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 16 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 17 | 397326 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 18 | 293584 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 19 | 254724 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 20 | 249961 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 21 | 256194 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 22 | 229672 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 23 | 206925 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 24 | 199024 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 25 | 173719 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromOrgAmt | 26 | 179826 |
| 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/ReportableCompFromRltdOrgAmt | 22 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 23 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 24 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 25 | 0 |
| IRS990/Form990PartVIISectionAGrp/ReportableCompFromRltdOrgAmt | 26 | 0 |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 0 | CHAIR & DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 1 | VICE CHAIR & 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 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 12 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 13 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 14 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 15 | DIRECTOR |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 16 | SECRETARY |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 17 | PRESIDENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 18 | TREASURER & CFO/COO |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 19 | CHIEF MARKETING OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 20 | VICE PRESIDENT OF CONSERVATION |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 21 | VICE PRESIDENT OF DEVELOPMENT |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 22 | CHIEF TALENT OFFICER |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 23 | DIRECTOR OF FINANCE |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 24 | GENERAL COUNSEL |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 25 | DIRECTOR OF PLANNED GIVING |
| IRS990/Form990PartVIISectionAGrp/TitleTxt | 26 | DIRECTOR OF DIVERSITY EQUITY AND INCLUSION |
| IRS990/Form990ProvidedToGvrnBodyInd | 0 | 1 |
| IRS990/FormationYr | 0 | 1977 |
| IRS990/FormerOfcrEmployeesListedInd | 0 | 0 |
| IRS990/FSAuditedBasisGrp/SeparateBasisFinclStmtInd | 0 | X |
| IRS990/FSAuditedInd | 0 | 1 |
| IRS990/FundraisingActivitiesInd | 0 | 0 |
| IRS990/GainOrLossGrp/SecuritiesAmt | 0 | 368903 |
| IRS990/GamingActivitiesInd | 0 | 0 |
| IRS990/GoverningBodyVotingMembersCnt | 0 | 16 |
| IRS990/GovernmentGrantsAmt | 0 | 534941 |
| IRS990/GrantAmt | 0 | 10110405 |
| IRS990/GrantsToDomesticOrgsGrp/ProgramServicesAmt | 0 | 10247709 |
| IRS990/GrantsToDomesticOrgsGrp/TotalAmt | 0 | 10247709 |
| IRS990/GrantsToIndividualsInd | 0 | 0 |
| IRS990/GrantsToOrganizationsInd | 0 | 1 |
| IRS990/GrantToRelatedPersonInd | 0 | 0 |
| IRS990/GrossAmountSalesAssetsGrp/SecuritiesAmt | 0 | 67317986 |
| IRS990/GrossReceiptsAmt | 0 | 97257719 |
| IRS990/GroupReturnForAffiliatesInd | 0 | 0 |
| IRS990/IncludeFIN48FootnoteInd | 0 | 1 |
| IRS990/IndependentAuditFinclStmtInd | 0 | 1 |
| IRS990/IndependentVotingMemberCnt | 0 | 16 |
| IRS990/IndivRcvdGreaterThan100KCnt | 0 | 38 |
| IRS990/IndoorTanningServicesInd | 0 | 0 |
| IRS990/InfoInScheduleOPartIIIInd | 0 | X |
| IRS990/InfoInScheduleOPartVIInd | 0 | X |
| IRS990/InfoInScheduleOPartXIIInd | 0 | X |
| IRS990/InformationTechnologyGrp/FundraisingAmt | 0 | 154060 |
| IRS990/InformationTechnologyGrp/ManagementAndGeneralAmt | 0 | 78105 |
| IRS990/InformationTechnologyGrp/ProgramServicesAmt | 0 | 295823 |
| IRS990/InformationTechnologyGrp/TotalAmt | 0 | 527988 |
| IRS990/InsuranceGrp/ManagementAndGeneralAmt | 0 | 68412 |
| IRS990/InsuranceGrp/ProgramServicesAmt | 0 | 177705 |
| IRS990/InsuranceGrp/TotalAmt | 0 | 246117 |
| IRS990/InterestGrp/ManagementAndGeneralAmt | 0 | 301240 |
| IRS990/InterestGrp/ProgramServicesAmt | 0 | 12854 |
| IRS990/InterestGrp/TotalAmt | 0 | 314094 |
| IRS990/InvestmentIncomeGrp/ExclusionAmt | 0 | 4474125 |
| IRS990/InvestmentIncomeGrp/TotalRevenueColumnAmt | 0 | 4474125 |
| IRS990/InvestmentInJointVentureInd | 0 | 0 |
| IRS990/InvestmentsOtherSecuritiesGrp/BOYAmt | 0 | 6330277 |
| IRS990/InvestmentsOtherSecuritiesGrp/EOYAmt | 0 | 6782534 |
| IRS990/InvestmentsPubTradedSecGrp/BOYAmt | 0 | 147599522 |
| IRS990/InvestmentsPubTradedSecGrp/EOYAmt | 0 | 179008192 |
| IRS990/IRPDocumentCnt | 0 | 66 |
| IRS990/IRPDocumentW2GCnt | 0 | 0 |
| IRS990/LandBldgEquipAccumDeprecAmt | 0 | 2447007 |
| IRS990/LandBldgEquipBasisNetGrp/BOYAmt | 0 | 6759287 |
| IRS990/LandBldgEquipBasisNetGrp/EOYAmt | 0 | 6510021 |
| IRS990/LandBldgEquipCostOrOtherBssAmt | 0 | 8957028 |
| IRS990/LegalDomicileStateCd | 0 | CA |
| IRS990/LessCostOthBasisSalesExpnssGrp/SecuritiesAmt | 0 | 66949083 |
| 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/MissionDesc | 0 | POST PROTECTS OPEN SPACE ON THE PENINSULA AND IN THE SOUTH BAY FOR THE BENEFIT OF ALL. POST IS CREATING A NETWORK OF PROTECTED LANDS WHERE PEOPLE AND NATURE CONNECT AND THRIVE. THESE LANDS ARE PRESERVED FOREVER SO PRESENT AND FUTURE GENERATIONS BENEFIT FROM THE CAREFUL... BALANCE OF RURAL AND URBAN LANDSCAPES THAT MAKE OUR REGION EXTRAORDINARY. |
| IRS990/MoreThan5000KToIndividualsInd | 0 | 0 |
| IRS990/MoreThan5000KToOrgInd | 0 | 0 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/BOYAmt | 0 | 8341506 |
| IRS990/MortgNotesPyblScrdInvstPropGrp/EOYAmt | 0 | 101319 |
| IRS990/NetAssetsOrFundBalancesBOYAmt | 0 | 317703621 |
| IRS990/NetAssetsOrFundBalancesEOYAmt | 0 | 328194673 |
| IRS990/NetGainOrLossInvestmentsGrp/ExclusionAmt | 0 | 368903 |
| IRS990/NetGainOrLossInvestmentsGrp/TotalRevenueColumnAmt | 0 | 368903 |
| IRS990/NetUnrelatedBusTxblIncmAmt | 0 | 0 |
| IRS990/NetUnrlzdGainsLossesInvstAmt | 0 | 14041944 |
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