Income Tax Disclosure [Abstract] Income Taxes [Text Block] Income Tax Disclosure [Text Block] New Accounting Standards [Abstract] New Accounting Standards [Abstract] New Accounting Pronouncements and Changes in Accounting Principles [Text Block] New Accounting Pronouncements and Changes in Accounting Principles [Text Block] Debt Table [Abstract] Debt Table [Abstract] Schedule of Debt [Table Text Block] Schedule of Debt [Table Text Block] Discontinued Operations and Disposal Groups [Abstract] Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Statement of Cash Flows [Abstract] Statement [Table] Statement [Table] Disposal Group Name [Axis] Disposal Group Name [Axis] Disposal Group Name [Domain] Disposal Group Name [Domain] The Oaks at Lakeway [Member] The Oaks at Lakeway [Member] The Oaks at Lakeway [Member] Disposal Group Classification [Axis] Disposal Group Classification [Axis] Disposal Group Classification [Domain] Disposal Group Classification [Domain] Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] Statement, Scenario [Axis] Scenario [Axis] Scenario, Unspecified [Domain] Scenario, Unspecified [Domain] Statement [Line Items] Statement [Line Items] Cash flow from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net loss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Adjustments to reconcile net loss to net cash used in operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation Depreciation Including Discontinued Operations The expense recognized in the current period that allocates the cost of a tangible asset used in providing revenue generating services over the asset's useful life. Includes expense associated with continuing and discontinued operations. Cost of real estate sold SEC Schedule III, Real Estate, Cost of Real Estate Sold Gain on sale of assets Gain (Loss) on Disposition of Assets (Gain) loss on interest rate derivative contracts Gain (Loss) on Interest Rate Derivative Instruments Not Designated as Hedging Instruments Loss on early extinguishment of debt Gain (Loss) on Extinguishment of Debt Debt issuance cost amortization and stock-based compensation Share-based Compensation Equity in unconsolidated affiliates' loss (income) Income (Loss) from Equity Method Investments Deposits Deposits Operating Cash Flows Net cash outflow or inflow from deposits, including those classified as assets and those classified as liabilities. Deferred income taxes Deferred Income Tax Expense (Benefit) Purchases and development of real estate properties Payments to Acquire and Develop Real Estate Municipal utility district reimbursement Municipal Utility District Reimbursement, Cash Flow Cash inflow from reimbursements of certain costs incurred to develop infrastructure and utility systems to benefit municipal utility districts. Decrease (increase) in other assets Increase (Decrease) in Operating Assets Increase (decrease) in accounts payable, accrued liabilities and other Increase (Decrease) in Accounts Payable and Accrued Liabilities Net cash used in operating activities Net Cash Provided by (Used in) Operating Activities Cash flow from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Capital expenditures Payments for Capital Improvements Proceeds from sale of assets Proceeds from Sale of Productive Assets Payments on master lease obligations Payments for (Proceeds from) Other Investing Activities Other, net Payments for (Proceeds from) Businesses and Interest in Affiliates Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Investing Activities Cash flow from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Borrowings from credit facility Proceeds from Lines of Credit Payments on credit facility Repayments of Lines of Credit Borrowings from project loans Proceeds from Other Debt Payments on project and term loans Repayments of Other Debt Stock-based awards net payments Net payments proceeds for stock based awards The net cash inflow or outflow associated with the exercise and vesting of stock-based awards. Financing costs Payments of Financing Costs Net cash (used in) provided by financing activities Net Cash Provided by (Used in) Financing Activities Net increase (decrease) in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at beginning of year Cash and Cash Equivalents, at Carrying Value, Including Discontinued Operations Cash and cash equivalents at end of period Earnings Per Share [Abstract] Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table] Schedule of Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Table] Award Type [Axis] Award Type [Axis] Award Type [Domain] Equity Award [Domain] Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Income Statement [Abstract] Revenues: Revenues [Abstract] Real estate operations Sales of Real Estate Leasing operations Operating Leases, Income Statement, Lease Revenue Hotel Revenue from Hotels Entertainment Revenues From Entertainment Venue Revenues from entertainment venue, primarily including ticket sales; sales of concessions and merchandise; and sponsorships, personal seat license sales and suite sales. Total revenues Revenues Cost of sales: Cost of Revenue [Abstract] Real estate operations Cost of Real Estate Sales Leasing operations Direct Costs of Leased and Rented Property or Equipment Hotel Direct Costs of Hotels Entertainment Entertainment Venue Operating Costs Entertainment venue operating costs, primarily including artist performance fees, salaries and advertising costs. Depreciation Cost of Services, Depreciation Total cost of sales Cost of Revenue General and administrative expenses General and Administrative Expense Profit participation in sale of The Oaks at Lakeway Other Nonrecurring Expense Gain on sales of assets Disposal Group, Not Discontinued Operation, Gain (Loss) on Disposal Total Costs and Expenses Operating (loss) income Operating Income (Loss) Interest expense, net Interest Expense Gain (loss) on interest rate derivative instruments Loss on early extinguishment of debt Other income, net Other Nonoperating Income (Expense) Loss before income taxes and equity in unconsolidated affiliates' (loss) income Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest Equity in unconsolidated affiliates' (loss) income Benefit from income taxes Income Tax Expense (Benefit) Net loss and total comprehensive loss attributable to common stockholders Net Income (Loss) Available to Common Stockholders, Basic Basic and diluted net loss per share attributable to common stockholders Earnings Per Share, Basic and Diluted [Abstract] Basic and diluted net loss per share attributable to common stockholders Earnings Per Share, Basic and Diluted Basic and diluted weighted-average shares of common stock outstanding Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract] Basic and diluted weighted-average shares of common stock outstanding Weighted Average Number of Shares Outstanding, Basic and Diluted Common Stock, Dividends, Per Share, Declared Common Stock, Dividends, Per Share, Declared General Information [Abstract] GENERAL [Abstract] General Information [Text Block] Description containing the entire organization, consolidation and basis of presentation of financial statements disclosure. Equity [Abstract] Dividends Payable [Table] Dividends Payable [Table] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] Dividends [Axis] Dividends [Axis] Dividends [Domain] Dividends [Domain] Dividends Payable [Line Items] Dividends Payable [Line Items] Dividends Payable Dividends Payable Subsequent Events [Abstract] Earnings Per Share [Text Block] Earnings Per Share [Text Block] New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] Barton Creek [Member] Barton Creek [Member] Barton Creek [Member] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Proceeds from Sale of Real Estate Held-for-investment Proceeds from Sale of Real Estate Held-for-investment Proceeds from Sale of Real Estate Held-for-investment, Net of Debt Repayments Proceeds from Sale of Real Estate Held-for-investment, Net of Debt Repayments Cash received from the sale of real estate that is held for investment, that is, it is part of an investing activity during the period, net of cash used to repay debt associated with the real estate held for investment. Contractual Obligation Contractual Obligation Guarantee obligations, Liability Cap, percentage Guarantee obligations, Liability Cap, percentage The cap amount, in percent, of the guarantee of obligations of a selling subsidiary. Letters of Credit Outstanding, Amount Letters of Credit Outstanding, Amount Disposal Group, Deferred Gain on Disposal Disposal Group, Deferred Gain on Disposal Payments for (Proceeds from) Other Investing Activities Other nonrecurring expense paid at closing Other nonrecurring expense paid at closing Other nonrecurring expense paid at closing Repayments of Debt Repayments of Debt Consolidated Statements of Equity (Unaudited) [Abstract] Consolidated Statements of Equity (Unaudited) [Abstract] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Total Stratus Stockholders' Equity [Member] Parent [Member] Common Stock [Member] Common Stock [Member] Capital in Excess of Par Value [Member] Additional Paid-in Capital [Member] Accumulated Deficit [Member] Retained Earnings [Member] Common Stock Held in Treasury [Member] Treasury Stock [Member] Noncontrolling Interests in Subsidiaries [Member] Noncontrolling Interest [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Balance (in shares) Shares, Issued Cumulative Effect of New Accounting Principle in Period of Adoption Cumulative Effect of New Accounting Principle in Period of Adoption Dividends, Common Stock, Cash Dividends, Common Stock, Cash Exercised and issued stock-based awards Stock Issued During Period, Value, Share-based Compensation, Net of Forfeitures Exercised and issued stock-based awards (in shares) Stock Issued During Period, Shares, Share-based Compensation, Net of Forfeitures Stock-based compensation Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition Tax benefit for stock-based awards Adjustment to Additional Paid in Capital, Income Tax Effect from Share-based Compensation, Net Tender of shares for stock-based awards Tender of Shares for Stock Based Awards Value Value of stock tendered to the company during the period as a result of any share-based compensation plan other than an employee stock ownership plan (ESOP). This element is not the recognition of share-based compensation expense in pursuant to FAS 123R. That element is AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue (Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition, Value). Tender of shares for stock-based awards (in shares) Tender Of Shares For Stock Based Awards Shares Number of shares of stock tendered to the company during the period as a result of any share-based compensation plan other than an employee stock ownership plan (ESOP). Total comprehensive loss Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Balance Balance (in shares) Capitalization, Long-term Debt and Equity [Abstract] Debt and Equity Transactions [Text Block] Debt and Equity Transactions [Text Block] Information regarding debt and equity transactions during the quarter to date and year to date periods (if applicable) covered by the current reporting date. Fair Value Measurements [Abstract] 5. FAIR VALUE MEASUREMENTS [Abstract] Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value Measurements, Recurring and Nonrecurring [Table] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Fair Value, Hierarchy [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy [Domain] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 2 [Member] Measurement Basis [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement [Member] Portion at Fair Value Measurement [Member] Carrying Amount, Fair Value Disclosure [Member] Reported Value Measurement [Member] Estimate of Fair Value, Fair Value Disclosure [Member] Estimate of Fair Value Measurement [Member] Fair Value, Assets and Liabilities Measured on Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Debt Long-term Debt, Fair Value Interest rate swap agreement Interest Rate Derivative Liabilities, at Fair Value Segment Reporting [Abstract] Schedule of Segment Reporting Information by Segment [Table Text Block] Schedule of Segment Reporting Information, by Segment [Table Text Block] Fair Value, by Balance Sheet Grouping [Table Text Block] Fair Value, by Balance Sheet Grouping [Table Text Block] Subsequent Events [Text Block] Subsequent Events [Text Block] Statement of Financial Position [Abstract] ASSETS Assets [Abstract] Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Restricted cash Restricted Cash and Cash Equivalents Real estate held for sale Inventory, Real Estate, Held-for-sale Real estate under development Development in Process Land available for development Land Available for Development Real estate held for investment, net Real Estate Held for Investment The net book value of real estate property held for investment. Deferred tax assets Deferred Tax Assets, Net Other assets Other Assets Total assets Assets LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Accounts payable Accounts Payable Accrued liabilities, including taxes Accrued Liabilities Debt Debt and Capital Lease Obligations Deferred Gain on Sale of Property Deferred Gain on Sale of Property Other liabilities Other Liabilities Total liabilities Liabilities Commitments and contingencies Commitments and Contingencies Equity: Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Stockholders’ equity: Stockholders' Equity Attributable to Parent [Abstract] Common stock Common Stock, Value, Issued Capital in excess of par value of common stock Additional Paid in Capital, Common Stock Accumulated deficit Retained Earnings (Accumulated Deficit) Common stock held in treasury Treasury Stock, Value Total stockholders’ equity Stockholders' Equity Attributable to Parent Noncontrolling interests in subsidiaries Stockholders' Equity Attributable to Noncontrolling Interest Total equity Total liabilities and equity Liabilities and Equity Deferred Income Tax Benefit Incl Adj for Cumulative Effect of Change in Acctg Std Deferred Income Tax Benefit Incl Adj for Cumulative Effect of Change in Acctg Std Deferred Income Tax Benefit Including Adjustment for Cumulative Effect of Change in Accounting Standard Current Income Tax Expense (Benefit) Current Income Tax Expense (Benefit) Deferred income tax expense (benefit) Federal Statutory Income Tax Rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Business Segments [Axis] Segments [Axis] Segment [Domain] Segments [Domain] Real Estate Operations [Member] Real Estate Operations [Member] Real Estate Operations [Member] Commercial Leasing [Member] Commercial Leasing [Member] Commercial Leasing [Member] Hotel [Member] Hotel [Member] Entertainment Venue [Member] Entertainment Venue [Member] Entertainment Venue [Member] Eliminations and Other [Member] Intersegment Eliminations [Member] Nature of Expense [Axis] Nature of Expense [Axis] Interim Period, Costs Not Allocable [Domain] Interim Period, Costs Not Allocable [Domain] Professional Fees and Incentive Compensation [Member] Professional Fees and Incentive Compensation [Member] Professional Fees and Incentive Compensation Segment Reporting Information [Line Items] Segment Reporting Information [Line Items] Unaffiliated customers Intersegment Revenue from Related Parties Cost of sales, excluding depreciation Cost of Sales, Excluding Depreciation Costs incurred and directly related to generating revenues from real estate operations, including developed and undeveloped real estate sales, from operating owned hotels, from operating entertainment venues, and from leasing commercial properties. Cost of sales excludes depreciation. Profit participation Operating income (loss) Capital expenditures SEC Schedule III, Real Estate, Improvements Total assets Document and Entity Information [Abstract] Document and Entity Information [Abstract] Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Entity Filer Category Entity Filer Category Document Type Document Type Document Period End Date Document Period End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Amendment Flag Amendment Flag Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Public Float Entity Public Float Subsequent Event [Table] Subsequent Event [Table] Range [Axis] Range [Axis] Range [Domain] Range [Domain] Minimum [Member] Minimum [Member] Name of Property [Axis] Name of Property [Axis] Name of Property [Domain] Name of Property [Domain] Lantana Place [Member] Lantana Place [Member] Lantana Place [Member] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Construction Loans [Member] Construction Loans [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Line of Credit Facility, Maximum Borrowing Capacity Line of Credit Facility, Maximum Borrowing Capacity Line of Credit Facility, Covenant Terms Line of Credit Facility, Covenant Terms Debt Instrument, Basis Spread on Variable Rate Debt Instrument, Basis Spread on Variable Rate Debt Instrument, Interest Rate, Stated Percentage Debt Instrument, Interest Rate, Stated Percentage Long-term Line of Credit Long-term Line of Credit Fair Value Measurements [Text Block] Fair Value Disclosures [Text Block] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Lantana Place [Member] West Killeen Market [Member] West Killeen Market [Member] Letter of Credit [Member] Letter of Credit [Member] Goldman Sachs Loan [Member] Goldman Sachs Loan [Member] Goldman Sachs Loan [Member] Lakeway Center Construction Loan [Member] Lakeway Center Construction Loan [Member] Lakeway Center Construction Loan [Member] Comerica Credit Facility [Member] Comerica Credit Facility [Member] Comerica Credit Facility [Member] Santal Multi-Family [Member] Santal Multi-Family [Member] Santal Multi-Family [Member] Barton Creek Village Term Loan [Member] Barton Creek Village Term Loan [Member] Barton Creek Village Term Loan [Member] Disposal Group, Disposed of by Sale, Not Discontinued Operations [Member] Amarra Villas Credit Facility [Member] Amarra Villas Credit Facility [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Unamortized Debt Issuance Expense Unamortized Debt Issuance Expense Line of Credit Facility, Remaining Borrowing Capacity Line of Credit Facility, Remaining Borrowing Capacity Interest Costs Incurred Interest Costs Incurred Interest Costs Capitalized Interest Costs Capitalized Business Segments [Text Block] Segment Reporting Disclosure [Text Block]