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Risk Benchmark [Domain] Consolidation Items [Domain] Consolidation Items [Domain] Accounts Payable and Accrued Expenses Accounts Payable and Accrued Liabilities Disclosure [Text Block] Shares issued for each share held at date of spin-off (in shares) Number of Shares Issued in Spinoff for Each Share Owned in Former Parent Number of Shares Issued in Spinoff for Each Share Owned in Former Parent Award Timing Disclosures [Line Items] Debt, gross Total Long-Term Debt, Gross Measurement Frequency [Domain] Measurement Frequency [Domain] Weighted average interest rate Interest Costs Incurred [Abstract] Schedule Of Share Repurchases Schedule Of Share Repurchases [Table Text Block] Schedule Of Share Repurchases Extension term Debt Instrument, Extension Term Debt Instrument, Extension Term Net loss attributable to Highlands REIT, Inc. common stockholders Net Income (Loss) Attributable to Parent Subsequent Event [Table] Subsequent Event [Table] Lease Income Operating Lease, Lease Income [Table 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Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Measure: Measure [Axis] Tenant recovery income Tenant Recovery [Member] Tenant Recovery Weighted average number of common shares outstanding, basic (in shares) Weighted Average Number of Shares Outstanding, Basic Number of extension options Debt Instrument, Number Of Extension Options Debt Instrument, Number Of Extension Options Capital expenditures and tenant improvements Capital Expenditures And Tenant Improvements Capital Expenditures And Tenant Improvements Subsequent Events [Abstract] Subsequent Events [Abstract] Segment Reporting [Abstract] Segment Reporting [Abstract] Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Supplemental schedule of non-cash investing and financing activities: Other Noncash Investing and Financing Items [Abstract] Entity Tax Identification Number Entity Tax Identification Number Scenario [Domain] Scenario [Domain] 2026 (remaining) Long-term Debt, Maturities, Repayments of Principal, Weighted Average Interest Rate, Next 12 Months Long-term Debt, Maturities, Repayments of Principal, Weighted Average Interest Rate, Next 12 Months Number of assets (in property) Number of Real Estate Properties Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Consolidated Entities [Axis] Consolidated Entities [Axis] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares issued Common Stock, Shares, Issued 2029 Long-Term Debt, Maturity, Year Four Restricted Cash [Abstract] Restricted Cash [Abstract] Property insurance Occupancy, Net Interest expense Interest Expense, Nonoperating Trading Arrangement: Trading Arrangement [Axis] Total Shareholder Return Amount Total Shareholder Return Amount Total revenues Operating Lease, Lease Income Loss Contingencies [Line Items] Loss Contingencies [Line Items] Net Lease Net Lease [Member] Net Lease [Member] Subsequent Events Subsequent Events [Text Block] Insider Trading Arrangements [Line Items] Other Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Other income Investment Income, Interest and Dividend 2028 Lessor, Operating Lease, Payment to be Received, Year Two Total liabilities Liabilities Liabilities Thereafter Long-term Debt, Maturities, Repayments of Principal, Weighted Average Interest Rate, After Year Five Long-term Debt, Maturities, Repayments of Principal, Weighted Average Interest Rate, After Year Five Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Repurchase of shares (shares) Repurchase of shares (shares) Stock Repurchased During Period, Shares Expenses Operating Expenses [Abstract] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Corvue Venture Corvue Venture [Member] Corvue Venture [Member] Interest Rate Swap Maturing April 30, 2029 Interest Rate Swap Maturing April 30, 2029 [Member] Interest Rate Swap Maturing April 30, 2029 Statement [Line Items] Statement [Line Items] Consolidation Items [Axis] Consolidation Items [Axis] Payment of leasing fees Payments for Leasing Costs Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Cash and cash equivalents Cash and Cash Equivalent Subsequent Event [Line Items] Subsequent Event [Line Items] Construction in progress Development in Process Common Stock Common stock Common Stock [Member] Accrued compensation Employee-related Liabilities Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Less accumulated depreciation Real Estate Investment Property, Accumulated Depreciation Net increase (decrease) in cash and cash equivalents and restricted cash and escrows Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation