SEC Info  
    Home      Search      My Interests      Help      Sign In      Please Sign In

Star Holdings – ‘10-K’ for 12/31/23 – ‘XML’

On:  Tuesday, 2/27/24, at 4:37pm ET   ·   For:  12/31/23   ·   Accession #:  1953366-24-5   ·   File #:  1-41572

4 References:   

Find Words in Filings emoji
 
  in    Show  and   Hints

  As Of               Filer                 Filing    For·On·As Docs:Size

 2/27/24  Star Holdings                     10-K       12/31/23   97:19M

Annual Report   —   Form 10-K   —   SEA’34

Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-K        Annual Report                                       HTML   3.36M 
 2: EX-4.1      Instrument Defining the Rights of Security Holders  HTML     43K 
 3: EX-21.1     Subsidiaries List                                   HTML     83K 
 6: EX-97.0     Clawback Policy re: Recovery of Erroneously         HTML     41K 
                Awarded Compensation                                             
 4: EX-31.0     Certification -- §302 - SOA'02                      HTML     39K 
 5: EX-32.0     Certification -- §906 - SOA'02                      HTML     32K 
12: R1          Cover Page                                          HTML    101K 
13: R2          Combined and Consolidated Balance Sheets            HTML    129K 
14: R3          Combined and Consolidated Balance Sheets            HTML     43K 
                (Parenthetical)                                                  
15: R4          Combined and Consolidated Statements of Operations  HTML    152K 
16: R5          Combined and Consolidated Statements of Operations  HTML     45K 
                (Parenthetical)                                                  
17: R6          Combined and Consolidated Statements of             HTML     71K 
                Comprehensive Income (Loss)                                      
18: R7          Combined and Consolidated Statements of Changes in  HTML     86K 
                Equity                                                           
19: R8          Combined and Consolidated Statements of Cash Flows  HTML    144K 
20: R9          Combined and Consolidated Statements of Cash Flows  HTML     67K 
                (Parenthetical)                                                  
21: R10         Business and Organization                           HTML     33K 
22: R11         Basis of Presentation and Principles of             HTML     65K 
                Consolidation                                                    
23: R12         Summary of Significant Accounting Policies          HTML    138K 
24: R13         Real Estate                                         HTML     53K 
25: R14         Land and Development                                HTML     46K 
26: R15         Loans Receivable and Other Lending Investments,     HTML    603K 
                net                                                              
27: R16         Other Investments                                   HTML    110K 
28: R17         Other Assets and Other Liabilities                  HTML     73K 
29: R18         Debt Obligations, net                               HTML     77K 
30: R19         Commitments and Contingencies                       HTML     43K 
31: R20         Risk Management                                     HTML     34K 
32: R21         Equity                                              HTML     36K 
33: R22         Earnings Per Share                                  HTML     73K 
34: R23         Fair Values                                         HTML    153K 
35: R24         Schedule III - Real Estate and Accumulated          HTML    318K 
                Depreciation                                                     
36: R25         Schedule IV - Mortgage Loans on Real Estate         HTML    131K 
37: R26         Summary of Significant Accounting Policies          HTML    195K 
                (Policies)                                                       
38: R27         Basis of Presentation and Principles of             HTML     59K 
                Consolidation (Tables)                                           
39: R28         Summary of Significant Accounting Policies          HTML     87K 
                (Tables)                                                         
40: R29         Real Estate (Tables)                                HTML     51K 
41: R30         Land and Development (Tables)                       HTML     42K 
42: R31         Loans Receivable and Other Lending Investments,     HTML    616K 
                net (Tables)                                                     
43: R32         Other Investments (Tables)                          HTML     99K 
44: R33         Other Assets and Other Liabilities (Tables)         HTML     76K 
45: R34         Debt Obligations, net (Tables)                      HTML     68K 
46: R35         Commitments and Contingencies (Tables)              HTML     41K 
47: R36         Earnings Per Share (Tables)                         HTML     75K 
48: R37         Fair Values (Tables)                                HTML    151K 
49: R38         Business and Organization (Details)                 HTML     36K 
50: R39         Basis of Presentation and Principles of             HTML     33K 
                Consolidation -Basis of Presentation (Details)                   
51: R40         Basis of Presentation and Principles of             HTML     86K 
                Consolidation - VIEs (Details)                                   
52: R41         Summary of Significant Accounting Policies          HTML     80K 
                (Details)                                                        
53: R42         Summary of Significant Accounting Policies          HTML     62K 
                -Reconciliation of the income tax expense                        
                (Benefit) (Details)                                              
54: R43         Summary of Significant Accounting Policies -        HTML     47K 
                Deferred tax assets (Liabilities) (Details)                      
55: R44         Real Estate - Schedule of Real Estate Assets        HTML     39K 
                (Details)                                                        
56: R45         Real Estate - Dispositions (Details)                HTML     45K 
57: R46         Real Estate - Impairments (Details)                 HTML     34K 
58: R47         Real Estate - Tenant Reimbursements (Details)       HTML     29K 
59: R48         Real Estate - Allowance for Doubtful Accounts       HTML     33K 
                (Details)                                                        
60: R49         Real Estate - Future Minimum Operating Lease        HTML     42K 
                Payments (Details)                                               
61: R50         Land and Development (Schedule of Land and          HTML     37K 
                Development Assets) (Details)                                    
62: R51         Land and Development (Dispositions and              HTML     67K 
                Impairments) (Details)                                           
63: R52         Loans Receivable and Other Lending Investments,     HTML     65K 
                net - Loans Receivable (Details)                                 
64: R53         Loans Receivable and Other Lending Investments,     HTML     80K 
                net - Allowance for Loan Losses (Details)                        
65: R54         Loans Receivable and Other Lending Investments,     HTML     77K 
                net - Investment in Loans and Associated Allowance               
                for Loan Loss (Details)                                          
66: R55         Loans Receivable and Other Lending Investments,     HTML    132K 
                net - Credit Characteristics for Performing Loans                
                (Details)                                                        
67: R56         Loans Receivable and Other Lending Investments,     HTML     55K 
                net - Credit Characteristics by Payment Status                   
                (Details)                                                        
68: R57         Loans Receivable and Other Lending Investments,     HTML     53K 
                Net - Impaired Loans (Details)                                   
69: R58         Loans Receivable and Other Lending Investments,     HTML     79K 
                net - Loan Receivable Held for Sale and Other                    
                Lending Investments (Details)                                    
70: R59         Other Investments (Schedule of Other Investments)   HTML     93K 
                (Details)                                                        
71: R60         Other Investments (Safehold Inc) (Details)          HTML     78K 
72: R61         Other Investments (Other Real Estate Equity         HTML     36K 
                Investments) (Details)                                           
73: R62         Other Investments (Summarized Investee Financial    HTML     87K 
                Information) (Details)                                           
74: R63         Other Assets and Other Liabilities (Deferred        HTML     66K 
                Expenses and Other Assets) (Details)                             
75: R64         Other Assets and Other Liabilities (Schedule of     HTML     47K 
                Other Liabilities) (Details)                                     
76: R65         Debt Obligations, net (Schedule of Debt) (Details)  HTML     67K 
77: R66         Debt Obligations, net (Future Scheduled             HTML     45K 
                Maturities) (Details)                                            
78: R67         Debt Obligations, net (Secured Term Loan and        HTML     84K 
                Credit Facility Narrative) (Details)                             
79: R68         Commitments and Contingencies (Details)             HTML     46K 
80: R69         Equity (Details)                                    HTML     37K 
81: R70         Earnings Per Share (Schedule of Earnings Per        HTML     41K 
                Share) (Details)                                                 
82: R71         Earnings Per Share (Earnings Allocable to Common    HTML     61K 
                Shares) (Details)                                                
83: R72         Fair Values (Schedule of Fair Value Measurement)    HTML     66K 
                (Details)                                                        
84: R73         Fair Values - (Available-For-Sale Securities)       HTML     47K 
                (Details)                                                        
85: R74         Fair Values - (Carrying Value and Fair Value of     HTML     57K 
                Financial Instruments) (Details)                                 
86: R75         Schedule III - Real Estate and Accumulated          HTML    147K 
                Depreciation - Schedule of Real Estate Assets                    
                (Details)                                                        
87: R76         Schedule III - Real Estate and Accumulated          HTML     37K 
                Depreciation - Real Estate Reconciliation                        
                (Details)                                                        
88: R77         Schedule III - Real Estate and Accumulated          HTML     35K 
                Depreciation - Accumulated Depreciation                          
                Reconciliation (Details)                                         
89: R78         Schedule IV - Mortgage Loans on Real Estate -       HTML     52K 
                Schedule of Mortgage Loans on Real Estate                        
                (Details)                                                        
90: R79         Schedule IV - Mortgage Loans on Real Estate -       HTML     49K 
                Reconciliation of Mortgage Loans on Real Estate                  
                (Details)                                                        
91: R80         Pay vs Performance Disclosure                       HTML     40K 
92: R81         Insider Trading Arrangements                        HTML     34K 
94: XML         IDEA XML File -- Filing Summary                      XML    183K 
97: XML         XBRL Instance -- stho-20231231x10k_htm               XML   4.57M 
93: EXCEL       IDEA Workbook of Financial Report Info              XLSX    209K 
 8: EX-101.CAL  XBRL Calculations -- stho-20231231_cal               XML    245K 
 9: EX-101.DEF  XBRL Definitions -- stho-20231231_def                XML   1.00M 
10: EX-101.LAB  XBRL Labels -- stho-20231231_lab                     XML   1.87M 
11: EX-101.PRE  XBRL Presentations -- stho-20231231_pre              XML   1.48M 
 7: EX-101.SCH  XBRL Schema -- stho-20231231                         XSD    282K 
95: JSON        XBRL Instance as JSON Data -- MetaLinks              654±  1.02M 
96: ZIP         XBRL Zipped Folder -- 0001953366-24-000005-xbrl      Zip    565K 


‘XML’   —   IDEA XML File — Filing Summary


This Document is an IDEA XML File.


                                                                                                                                                                                
<?xml version="1.0" encoding="windows-1252"?>
<FilingSummary>
<Version> 3.24.0.1 </Version>
<ProcessingTime/>
<ReportFormat> html </ReportFormat>
<ContextCount> 286 </ContextCount>
<ElementCount> 452 </ElementCount>
<EntityCount> 1 </EntityCount>
<FootnotesReported> true </FootnotesReported>
<SegmentCount> 112 </SegmentCount>
<ScenarioCount> 0 </ScenarioCount>
<TuplesReported> false </TuplesReported>
<UnitCount> 10 </UnitCount>
<MyReports>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R1.htm </HtmlFileName>
<LongName> 00090 - Document - Cover Page </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DocumentCoverPage </Role>
<ShortName> Cover Page </ShortName>
<MenuCategory> Cover </MenuCategory>
<Position> 1 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R2.htm </HtmlFileName>
<LongName> 00100 - Statement - Combined and Consolidated Balance Sheets </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/StatementCombinedAndConsolidatedBalanceSheets </Role>
<ShortName> Combined and Consolidated Balance Sheets </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 2 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R3.htm </HtmlFileName>
<LongName> 00105 - Statement - Combined and Consolidated Balance Sheets (Parenthetical) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/StatementCombinedAndConsolidatedBalanceSheetsParenthetical </Role>
<ShortName> Combined and Consolidated Balance Sheets (Parenthetical) </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 3 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R4.htm </HtmlFileName>
<LongName> 00200 - Statement - Combined and Consolidated Statements of Operations </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/StatementCombinedAndConsolidatedStatementsOfOperations </Role>
<ShortName> Combined and Consolidated Statements of Operations </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 4 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R5.htm </HtmlFileName>
<LongName> 00205 - Statement - Combined and Consolidated Statements of Operations (Parenthetical) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/StatementCombinedAndConsolidatedStatementsOfOperationsParenthetical </Role>
<ShortName> Combined and Consolidated Statements of Operations (Parenthetical) </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 5 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R6.htm </HtmlFileName>
<LongName> 00300 - Statement - Combined and Consolidated Statements of Comprehensive Income (Loss) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/StatementCombinedAndConsolidatedStatementsOfComprehensiveIncomeLoss </Role>
<ShortName> Combined and Consolidated Statements of Comprehensive Income (Loss) </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 6 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R7.htm </HtmlFileName>
<LongName> 00400 - Statement - Combined and Consolidated Statements of Changes in Equity </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/StatementCombinedAndConsolidatedStatementsOfChangesInEquity </Role>
<ShortName> Combined and Consolidated Statements of Changes in Equity </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 7 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R8.htm </HtmlFileName>
<LongName> 00500 - Statement - Combined and Consolidated Statements of Cash Flows </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/StatementCombinedAndConsolidatedStatementsOfCashFlows </Role>
<ShortName> Combined and Consolidated Statements of Cash Flows </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 8 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R9.htm </HtmlFileName>
<LongName> 00505 - Statement - Combined and Consolidated Statements of Cash Flows (Parenthetical) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/StatementCombinedAndConsolidatedStatementsOfCashFlowsParenthetical </Role>
<ShortName> Combined and Consolidated Statements of Cash Flows (Parenthetical) </ShortName>
<MenuCategory> Statements </MenuCategory>
<Position> 9 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R10.htm </HtmlFileName>
<LongName> 10101 - Disclosure - Business and Organization </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureBusinessAndOrganization </Role>
<ShortName> Business and Organization </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 10 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R11.htm </HtmlFileName>
<LongName> 10201 - Disclosure - Basis of Presentation and Principles of Consolidation </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureBasisOfPresentationAndPrinciplesOfConsolidation </Role>
<ShortName> Basis of Presentation and Principles of Consolidation </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 11 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R12.htm </HtmlFileName>
<LongName> 10301 - Disclosure - Summary of Significant Accounting Policies </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureSummaryOfSignificantAccountingPolicies </Role>
<ShortName> Summary of Significant Accounting Policies </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 12 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R13.htm </HtmlFileName>
<LongName> 10401 - Disclosure - Real Estate </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureRealEstate </Role>
<ShortName> Real Estate </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 13 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R14.htm </HtmlFileName>
<LongName> 10501 - Disclosure - Land and Development </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureLandAndDevelopment </Role>
<ShortName> Land and Development </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 14 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R15.htm </HtmlFileName>
<LongName> 10601 - Disclosure - Loans Receivable and Other Lending Investments, net </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureLoansReceivableAndOtherLendingInvestmentsNet </Role>
<ShortName> Loans Receivable and Other Lending Investments, net </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 15 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R16.htm </HtmlFileName>
<LongName> 10701 - Disclosure - Other Investments </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureOtherInvestments </Role>
<ShortName> Other Investments </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 16 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R17.htm </HtmlFileName>
<LongName> 10801 - Disclosure - Other Assets and Other Liabilities </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureOtherAssetsAndOtherLiabilities </Role>
<ShortName> Other Assets and Other Liabilities </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 17 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R18.htm </HtmlFileName>
<LongName> 10901 - Disclosure - Debt Obligations, net </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureDebtObligationsNet </Role>
<ShortName> Debt Obligations, net </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 18 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R19.htm </HtmlFileName>
<LongName> 11001 - Disclosure - Commitments and Contingencies </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureCommitmentsAndContingencies </Role>
<ShortName> Commitments and Contingencies </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 19 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R20.htm </HtmlFileName>
<LongName> 11101 - Disclosure - Risk Management </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureRiskManagement </Role>
<ShortName> Risk Management </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 20 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R21.htm </HtmlFileName>
<LongName> 11201 - Disclosure - Equity </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureEquity </Role>
<ShortName> Equity </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 21 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R22.htm </HtmlFileName>
<LongName> 11301 - Disclosure - Earnings Per Share </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureEarningsPerShare </Role>
<ShortName> Earnings Per Share </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 22 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R23.htm </HtmlFileName>
<LongName> 11401 - Disclosure - Fair Values </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureFairValues </Role>
<ShortName> Fair Values </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 23 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R24.htm </HtmlFileName>
<LongName> 11501 - Disclosure - Schedule III - Real Estate and Accumulated Depreciation </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureScheduleIiiRealEstateAndAccumulatedDepreciation </Role>
<ShortName> Schedule III - Real Estate and Accumulated Depreciation </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 24 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R25.htm </HtmlFileName>
<LongName> 11601 - Disclosure - Schedule IV - Mortgage Loans on Real Estate </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureScheduleIvMortgageLoansOnRealEstate </Role>
<ShortName> Schedule IV - Mortgage Loans on Real Estate </ShortName>
<MenuCategory> Notes </MenuCategory>
<Position> 25 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R26.htm </HtmlFileName>
<LongName> 20302 - Disclosure - Summary of Significant Accounting Policies (Policies) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies </Role>
<ShortName> Summary of Significant Accounting Policies (Policies) </ShortName>
<MenuCategory> Policies </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureSummaryOfSignificantAccountingPolicies </ParentRole>
<Position> 26 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R27.htm </HtmlFileName>
<LongName> 30203 - Disclosure - Basis of Presentation and Principles of Consolidation (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureBasisOfPresentationAndPrinciplesOfConsolidationTables </Role>
<ShortName> Basis of Presentation and Principles of Consolidation (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureBasisOfPresentationAndPrinciplesOfConsolidation </ParentRole>
<Position> 27 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R28.htm </HtmlFileName>
<LongName> 30303 - Disclosure - Summary of Significant Accounting Policies (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables </Role>
<ShortName> Summary of Significant Accounting Policies (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureSummaryOfSignificantAccountingPolicies </ParentRole>
<Position> 28 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R29.htm </HtmlFileName>
<LongName> 30403 - Disclosure - Real Estate (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureRealEstateTables </Role>
<ShortName> Real Estate (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureRealEstate </ParentRole>
<Position> 29 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R30.htm </HtmlFileName>
<LongName> 30503 - Disclosure - Land and Development (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureLandAndDevelopmentTables </Role>
<ShortName> Land and Development (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureLandAndDevelopment </ParentRole>
<Position> 30 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R31.htm </HtmlFileName>
<LongName> 30603 - Disclosure - Loans Receivable and Other Lending Investments, net (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureLoansReceivableAndOtherLendingInvestmentsNetTables </Role>
<ShortName> Loans Receivable and Other Lending Investments, net (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureLoansReceivableAndOtherLendingInvestmentsNet </ParentRole>
<Position> 31 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R32.htm </HtmlFileName>
<LongName> 30703 - Disclosure - Other Investments (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureOtherInvestmentsTables </Role>
<ShortName> Other Investments (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureOtherInvestments </ParentRole>
<Position> 32 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R33.htm </HtmlFileName>
<LongName> 30803 - Disclosure - Other Assets and Other Liabilities (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureOtherAssetsAndOtherLiabilitiesTables </Role>
<ShortName> Other Assets and Other Liabilities (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureOtherAssetsAndOtherLiabilities </ParentRole>
<Position> 33 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R34.htm </HtmlFileName>
<LongName> 30903 - Disclosure - Debt Obligations, net (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureDebtObligationsNetTables </Role>
<ShortName> Debt Obligations, net (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureDebtObligationsNet </ParentRole>
<Position> 34 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R35.htm </HtmlFileName>
<LongName> 31003 - Disclosure - Commitments and Contingencies (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureCommitmentsAndContingenciesTables </Role>
<ShortName> Commitments and Contingencies (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureCommitmentsAndContingencies </ParentRole>
<Position> 35 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R36.htm </HtmlFileName>
<LongName> 31303 - Disclosure - Earnings Per Share (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureEarningsPerShareTables </Role>
<ShortName> Earnings Per Share (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureEarningsPerShare </ParentRole>
<Position> 36 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R37.htm </HtmlFileName>
<LongName> 31403 - Disclosure - Fair Values (Tables) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureFairValuesTables </Role>
<ShortName> Fair Values (Tables) </ShortName>
<MenuCategory> Tables </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureFairValues </ParentRole>
<Position> 37 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R38.htm </HtmlFileName>
<LongName> 40101 - Disclosure - Business and Organization (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureBusinessAndOrganizationDetails </Role>
<ShortName> Business and Organization (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureBusinessAndOrganization </ParentRole>
<Position> 38 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R39.htm </HtmlFileName>
<LongName> 40201 - Disclosure - Basis of Presentation and Principles of Consolidation -Basis of Presentation (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureBasisOfPresentationAndPrinciplesOfConsolidationBasisOfPresentationDetails </Role>
<ShortName> Basis of Presentation and Principles of Consolidation -Basis of Presentation (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 39 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R40.htm </HtmlFileName>
<LongName> 40202 - Disclosure - Basis of Presentation and Principles of Consolidation - VIEs (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureBasisOfPresentationAndPrinciplesOfConsolidationViesDetails </Role>
<ShortName> Basis of Presentation and Principles of Consolidation - VIEs (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureBasisOfPresentationAndPrinciplesOfConsolidationTables </ParentRole>
<Position> 40 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R41.htm </HtmlFileName>
<LongName> 40301 - Disclosure - Summary of Significant Accounting Policies (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureSummaryOfSignificantAccountingPoliciesDetails </Role>
<ShortName> Summary of Significant Accounting Policies (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTables </ParentRole>
<Position> 41 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R42.htm </HtmlFileName>
<LongName> 40302 - Disclosure - Summary of Significant Accounting Policies -Reconciliation of the income tax expense (benefit) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureSummaryOfSignificantAccountingPoliciesReconciliationOfIncomeTaxExpenseBenefitDetails </Role>
<ShortName> Summary of Significant Accounting Policies -Reconciliation of the income tax expense (benefit) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 42 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R43.htm </HtmlFileName>
<LongName> 40303 - Disclosure - Summary of Significant Accounting Policies - Deferred tax assets (liabilities) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureSummaryOfSignificantAccountingPoliciesDeferredTaxAssetsLiabilitiesDetails </Role>
<ShortName> Summary of Significant Accounting Policies - Deferred tax assets (liabilities) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 43 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R44.htm </HtmlFileName>
<LongName> 40401 - Disclosure - Real Estate - Schedule of Real Estate Assets (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureRealEstateScheduleOfRealEstateAssetsDetails </Role>
<ShortName> Real Estate - Schedule of Real Estate Assets (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 44 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R45.htm </HtmlFileName>
<LongName> 40402 - Disclosure - Real Estate - Dispositions (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureRealEstateDispositionsDetails </Role>
<ShortName> Real Estate - Dispositions (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 45 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R46.htm </HtmlFileName>
<LongName> 40403 - Disclosure - Real Estate - Impairments (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureRealEstateImpairmentsDetails </Role>
<ShortName> Real Estate - Impairments (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 46 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R47.htm </HtmlFileName>
<LongName> 40404 - Disclosure - Real Estate - Tenant Reimbursements (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureRealEstateTenantReimbursementsDetails </Role>
<ShortName> Real Estate - Tenant Reimbursements (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 47 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R48.htm </HtmlFileName>
<LongName> 40405 - Disclosure - Real Estate - Allowance for Doubtful Accounts (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureRealEstateAllowanceForDoubtfulAccountsDetails </Role>
<ShortName> Real Estate - Allowance for Doubtful Accounts (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 48 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R49.htm </HtmlFileName>
<LongName> 40406 - Disclosure - Real Estate - Future Minimum Operating Lease Payments (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureRealEstateFutureMinimumOperatingLeasePaymentsDetails </Role>
<ShortName> Real Estate - Future Minimum Operating Lease Payments (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 49 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R50.htm </HtmlFileName>
<LongName> 40501 - Disclosure - Land and Development (Schedule of Land and Development Assets) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureLandAndDevelopmentScheduleOfLandAndDevelopmentAssetsDetails </Role>
<ShortName> Land and Development (Schedule of Land and Development Assets) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureLandAndDevelopmentTables </ParentRole>
<Position> 50 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R51.htm </HtmlFileName>
<LongName> 40502 - Disclosure - Land and Development (Dispositions and Impairments) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureLandAndDevelopmentDispositionsAndImpairmentsDetails </Role>
<ShortName> Land and Development (Dispositions and Impairments) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureLandAndDevelopmentTables </ParentRole>
<Position> 51 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R52.htm </HtmlFileName>
<LongName> 40601 - Disclosure - Loans Receivable and Other Lending Investments, net - Loans Receivable (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureLoansReceivableAndOtherLendingInvestmentsNetLoansReceivableDetails </Role>
<ShortName> Loans Receivable and Other Lending Investments, net - Loans Receivable (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 52 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R53.htm </HtmlFileName>
<LongName> 40602 - Disclosure - Loans Receivable and Other Lending Investments, net - Allowance for Loan Losses (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureLoansReceivableAndOtherLendingInvestmentsNetAllowanceForLoanLossesDetails </Role>
<ShortName> Loans Receivable and Other Lending Investments, net - Allowance for Loan Losses (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 53 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R54.htm </HtmlFileName>
<LongName> 40603 - Disclosure - Loans Receivable and Other Lending Investments, net - Investment in Loans and Associated Allowance for Loan Loss (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureLoansReceivableAndOtherLendingInvestmentsNetInvestmentInLoansAndAssociatedAllowanceForLoanLossDetails </Role>
<ShortName> Loans Receivable and Other Lending Investments, net - Investment in Loans and Associated Allowance for Loan Loss (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 54 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R55.htm </HtmlFileName>
<LongName> 40604 - Disclosure - Loans Receivable and Other Lending Investments, net - Credit Characteristics for Performing Loans (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureLoansReceivableAndOtherLendingInvestmentsNetCreditCharacteristicsForPerformingLoansDetails </Role>
<ShortName> Loans Receivable and Other Lending Investments, net - Credit Characteristics for Performing Loans (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 55 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R56.htm </HtmlFileName>
<LongName> 40605 - Disclosure - Loans Receivable and Other Lending Investments, net - Credit Characteristics by Payment Status (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureLoansReceivableAndOtherLendingInvestmentsNetCreditCharacteristicsByPaymentStatusDetails </Role>
<ShortName> Loans Receivable and Other Lending Investments, net - Credit Characteristics by Payment Status (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 56 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R57.htm </HtmlFileName>
<LongName> 40606 - Disclosure - Loans Receivable and Other Lending Investments, Net - Impaired Loans (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureLoansReceivableAndOtherLendingInvestmentsNetImpairedLoansDetails </Role>
<ShortName> Loans Receivable and Other Lending Investments, Net - Impaired Loans (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 57 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R58.htm </HtmlFileName>
<LongName> 40607 - Disclosure - Loans Receivable and Other Lending Investments, net - Loan Receivable Held for Sale and Other Lending Investments (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureLoansReceivableAndOtherLendingInvestmentsNetLoanReceivableHeldForSaleAndOtherLendingInvestmentsDetails </Role>
<ShortName> Loans Receivable and Other Lending Investments, net - Loan Receivable Held for Sale and Other Lending Investments (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 58 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R59.htm </HtmlFileName>
<LongName> 40701 - Disclosure - Other Investments (Schedule of Other Investments) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureOtherInvestmentsScheduleOfOtherInvestmentsDetails </Role>
<ShortName> Other Investments (Schedule of Other Investments) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureOtherInvestmentsTables </ParentRole>
<Position> 59 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R60.htm </HtmlFileName>
<LongName> 40702 - Disclosure - Other Investments (Safehold Inc) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureOtherInvestmentsSafeholdIncDetails </Role>
<ShortName> Other Investments (Safehold Inc) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureOtherInvestmentsTables </ParentRole>
<Position> 60 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R61.htm </HtmlFileName>
<LongName> 40703 - Disclosure - Other Investments (Other Real Estate Equity Investments) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureOtherInvestmentsOtherRealEstateEquityInvestmentsDetails </Role>
<ShortName> Other Investments (Other Real Estate Equity Investments) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureOtherInvestmentsTables </ParentRole>
<Position> 61 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R62.htm </HtmlFileName>
<LongName> 40704 - Disclosure - Other Investments (Summarized Investee Financial Information) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureOtherInvestmentsSummarizedInvesteeFinancialInformationDetails </Role>
<ShortName> Other Investments (Summarized Investee Financial Information) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureOtherInvestmentsTables </ParentRole>
<Position> 62 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R63.htm </HtmlFileName>
<LongName> 40801 - Disclosure - Other Assets and Other Liabilities (Deferred Expenses and Other Assets) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureOtherAssetsAndOtherLiabilitiesDeferredExpensesAndOtherAssetsDetails </Role>
<ShortName> Other Assets and Other Liabilities (Deferred Expenses and Other Assets) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureOtherAssetsAndOtherLiabilitiesTables </ParentRole>
<Position> 63 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R64.htm </HtmlFileName>
<LongName> 40802 - Disclosure - Other Assets and Other Liabilities (Schedule of Other Liabilities) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureOtherAssetsAndOtherLiabilitiesScheduleOfOtherLiabilitiesDetails </Role>
<ShortName> Other Assets and Other Liabilities (Schedule of Other Liabilities) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureOtherAssetsAndOtherLiabilitiesTables </ParentRole>
<Position> 64 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R65.htm </HtmlFileName>
<LongName> 40901 - Disclosure - Debt Obligations, net (Schedule of Debt) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureDebtObligationsNetScheduleOfDebtDetails </Role>
<ShortName> Debt Obligations, net (Schedule of Debt) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureDebtObligationsNetTables </ParentRole>
<Position> 65 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R66.htm </HtmlFileName>
<LongName> 40902 - Disclosure - Debt Obligations, net (Future Scheduled Maturities) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureDebtObligationsNetFutureScheduledMaturitiesDetails </Role>
<ShortName> Debt Obligations, net (Future Scheduled Maturities) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureDebtObligationsNetTables </ParentRole>
<Position> 66 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R67.htm </HtmlFileName>
<LongName> 40903 - Disclosure - Debt Obligations, net (Secured Term Loan and Credit Facility Narrative) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureDebtObligationsNetSecuredTermLoanAndCreditFacilityNarrativeDetails </Role>
<ShortName> Debt Obligations, net (Secured Term Loan and Credit Facility Narrative) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureDebtObligationsNetTables </ParentRole>
<Position> 67 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R68.htm </HtmlFileName>
<LongName> 41001 - Disclosure - Commitments and Contingencies (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureCommitmentsAndContingenciesDetails </Role>
<ShortName> Commitments and Contingencies (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureCommitmentsAndContingenciesTables </ParentRole>
<Position> 68 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R69.htm </HtmlFileName>
<LongName> 41201 - Disclosure - Equity (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureEquityDetails </Role>
<ShortName> Equity (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureEquity </ParentRole>
<Position> 69 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R70.htm </HtmlFileName>
<LongName> 41301 - Disclosure - Earnings Per Share (Schedule of Earnings Per Share) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureEarningsPerShareScheduleOfEarningsPerShareDetails </Role>
<ShortName> Earnings Per Share (Schedule of Earnings Per Share) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureEarningsPerShareTables </ParentRole>
<Position> 70 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R71.htm </HtmlFileName>
<LongName> 41302 - Disclosure - Earnings Per Share (Earnings Allocable to Common Shares) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureEarningsPerShareEarningsAllocableToCommonSharesDetails </Role>
<ShortName> Earnings Per Share (Earnings Allocable to Common Shares) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureEarningsPerShareTables </ParentRole>
<Position> 71 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R72.htm </HtmlFileName>
<LongName> 41401 - Disclosure - Fair Values (Schedule of Fair Value Measurement) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureFairValuesScheduleOfFairValueMeasurementDetails </Role>
<ShortName> Fair Values (Schedule of Fair Value Measurement) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureFairValuesTables </ParentRole>
<Position> 72 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R73.htm </HtmlFileName>
<LongName> 41402 - Disclosure - Fair Values - (Available-For-Sale Securities) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureFairValuesAvailableForSaleSecuritiesDetails </Role>
<ShortName> Fair Values - (Available-For-Sale Securities) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureFairValuesTables </ParentRole>
<Position> 73 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R74.htm </HtmlFileName>
<LongName> 41403 - Disclosure - Fair Values - (Carrying Value and Fair Value of Financial Instruments) (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureFairValuesCarryingValueAndFairValueOfFinancialInstrumentsDetails </Role>
<ShortName> Fair Values - (Carrying Value and Fair Value of Financial Instruments) (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<ParentRole> http://www.istarfinancial.com/role/DisclosureFairValuesTables </ParentRole>
<Position> 74 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R75.htm </HtmlFileName>
<LongName> 41501 - Disclosure - Schedule III - Real Estate and Accumulated Depreciation - Schedule of Real Estate Assets (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureScheduleIiiRealEstateAndAccumulatedDepreciationScheduleOfRealEstateAssetsDetails </Role>
<ShortName> Schedule III - Real Estate and Accumulated Depreciation - Schedule of Real Estate Assets (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 75 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R76.htm </HtmlFileName>
<LongName> 41502 - Disclosure - Schedule III - Real Estate and Accumulated Depreciation - Real Estate Reconciliation (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureScheduleIiiRealEstateAndAccumulatedDepreciationRealEstateReconciliationDetails </Role>
<ShortName> Schedule III - Real Estate and Accumulated Depreciation - Real Estate Reconciliation (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 76 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R77.htm </HtmlFileName>
<LongName> 41503 - Disclosure - Schedule III - Real Estate and Accumulated Depreciation - Accumulated Depreciation Reconciliation (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureScheduleIiiRealEstateAndAccumulatedDepreciationAccumulatedDepreciationReconciliationDetails </Role>
<ShortName> Schedule III - Real Estate and Accumulated Depreciation - Accumulated Depreciation Reconciliation (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 77 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R78.htm </HtmlFileName>
<LongName> 41601 - Disclosure - Schedule IV - Mortgage Loans on Real Estate - Schedule of Mortgage Loans on Real Estate (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureScheduleIvMortgageLoansOnRealEstateScheduleOfMortgageLoansOnRealEstateDetails </Role>
<ShortName> Schedule IV - Mortgage Loans on Real Estate - Schedule of Mortgage Loans on Real Estate (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 78 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R79.htm </HtmlFileName>
<LongName> 41602 - Disclosure - Schedule IV - Mortgage Loans on Real Estate - Reconciliation of Mortgage Loans on Real Estate (Details) </LongName>
<ReportType> Sheet </ReportType>
<Role> http://www.istarfinancial.com/role/DisclosureScheduleIvMortgageLoansOnRealEstateReconciliationOfMortgageLoansOnRealEstateDetails </Role>
<ShortName> Schedule IV - Mortgage Loans on Real Estate - Reconciliation of Mortgage Loans on Real Estate (Details) </ShortName>
<MenuCategory> Details </MenuCategory>
<Position> 79 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R80.htm </HtmlFileName>
<LongName> 995410 - Disclosure - Pay vs Performance Disclosure </LongName>
<ReportType> Sheet </ReportType>
<Role> http://xbrl.sec.gov/ecd/role/PvpDisclosure </Role>
<ShortName> Pay vs Performance Disclosure </ShortName>
<MenuCategory> Uncategorized </MenuCategory>
<Position> 80 </Position>
</Report>
<Report instance="stho-20231231x10k.htm">
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<HtmlFileName> R81.htm </HtmlFileName>
<LongName> 995445 - Disclosure - Insider Trading Arrangements </LongName>
<ReportType> Sheet </ReportType>
<Role> http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements </Role>
<ShortName> Insider Trading Arrangements </ShortName>
<MenuCategory> Cover </MenuCategory>
<Position> 81 </Position>
</Report>
<Report>
<IsDefault> false </IsDefault>
<HasEmbeddedReports> false </HasEmbeddedReports>
<LongName> All Reports </LongName>
<ReportType> Book </ReportType>
<ShortName> All Reports </ShortName>
</Report>
</MyReports>
<InputFiles>
<File> stho-20231231.xsd </File>
<File> stho-20231231_cal.xml </File>
<File> stho-20231231_def.xml </File>
<File> stho-20231231_lab.xml </File>
<File> stho-20231231_pre.xml </File>
<File doctype="10-K" isDefinitelyFs="true" isUsgaap="true" original="stho-20231231x10k.htm"> stho-20231231x10k.htm </File>
</InputFiles>
<SupplementalFiles/>
<BaseTaxonomies>
<BaseTaxonomy items="13"> http://fasb.org/srt/2023 </BaseTaxonomy>
<BaseTaxonomy items="1187"> http://fasb.org/us-gaap/2023 </BaseTaxonomy>
<BaseTaxonomy items="39"> http://xbrl.sec.gov/dei/2023 </BaseTaxonomy>
<BaseTaxonomy items="4"> http://xbrl.sec.gov/ecd/2023 </BaseTaxonomy>
</BaseTaxonomies>
<HasPresentationLinkbase> true </HasPresentationLinkbase>
<HasCalculationLinkbase> true </HasCalculationLinkbase>
</FilingSummary>


4 Previous Filings that this Filing References

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

10/06/23  Star Holdings                     8-K:1,9    10/04/23   12:286K                                   Toppan Merrill/FA
 5/11/23  Star Holdings                     10-Q        3/31/23   80:11M                                    Toppan Merrill Bridge/FA
 3/31/23  Star Holdings                     8-K:1,2,3,5 3/31/23   19:2.6M                                   Toppan Merrill/FA
 3/20/23  Star Holdings                     10-12B/A               2:3.1M                                   Toppan Merrill/FA
Top
Filing Submission 0001953366-24-000005   –   Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)

Copyright © 2024 Fran Finnegan & Company LLC – All Rights Reserved.
AboutPrivacyRedactionsHelp — Fri., May 10, 3:20:25.1am ET