Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum Maximum [Member] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Due from utility companies, improvement districts and municipalities Utility and Municipality Receivable Utility and Municipality Receivable Statistical Measurement [Domain] Statistical Measurement [Domain] Housing gross profit margin as a percentage of housing revenues Housing Gross Profit Margin as a Percentage of Housing Revenues Housing Gross Profit Margin as a Percentage of Housing Revenues Title of 12(b) Security Title of 12(b) Security Carrying Value Reported Value Measurement [Member] Numerator for diluted earnings per share Net Income (Loss) Available to Common Stockholders, Diluted Document Fiscal Year Focus Document Fiscal Year Focus Debt, weighted average interest rate (percent) Debt, Weighted Average Interest Rate 4.80% Senior notes due November 15, 2029 Senior Notes Due Two Thousand Twenty Nine At Four Point Eight Percent [Member] Senior Notes Due Two Thousand Twenty Nine At Four Point Eight Percent Adjustment to Compensation, Amount Adjustment to Compensation Amount Financial Instrument [Axis] Financial Instrument [Axis] Segment Reporting [Abstract] Segment Reporting [Abstract] Schedule of Financial Services Income (Loss) Financial Services Income Loss [Table Text Block] Financial services income loss. Restructuring Plan [Axis] Restructuring Plan [Axis] Common stock — 63,969,624 and 74,477,254 shares issued at August 31, 2026 and November 30, 2025, respectively Common Stock, Value, Issued Tax payments associated with stock-based compensation awards Payment, tax withholding, share-based payment arrangement Payment, Tax Withholding, Share-Based Payment Arrangement Schedule of Mortgages and Notes Payable Schedule of Long-Term Debt Instruments [Table Text Block] Land Option Contract Abandonment Land Option Contract Abandonment [Member] Land Option Contract Abandonment [Member] Unsecured revolving credit facility Line of Credit [Member] Restatement Determination Date Restatement Determination Date Investments in unconsolidated joint ventures Investment in unconsolidated joint venture Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Financial services Total liabilities Financial Services Liabilities Interest Capitalization Interest Capitalization, Policy [Policy Text Block] Fair Value by Measurement Frequency [Axis] Measurement Frequency [Axis] Allowance for doubtful accounts Accounts Receivable, Allowance for Credit Loss Less: Distributed earnings allocated to participating securities Participating Securities, Distributed and Undistributed Earnings (Loss), Basic Amendment Flag Amendment Flag Relocation costs and asset impairment Restructuring Costs and Asset Impairment Charges Consolidated Entities [Axis] Consolidated Entities [Axis] Entity Common Stock Shares Outstanding Entity Common Stock, Shares Outstanding Loss Contingencies [Table] Loss Contingencies [Table] Leases [Abstract] Leases [Abstract] Consolidated Entities [Domain] Consolidated Entities [Domain] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Entity Address, State or Province Entity Address, State or Province PEO Total Compensation Amount PEO Total Compensation Amount Recoveries related to self-insurance and other legal claims Reclassification of warranty recoveries to receivables Loss Contingency, Receivable Pre-Impairment Value Inventory Impacted by Pretax Noncash Inventory Impairment Charges, Carrying Value Inventory Impacted by Pretax Noncash Inventory Impairment Charges, Carrying Value Inventory Impairments and Land Option Contract Abandonments Asset, Impairment [Text Block] Share Repurchase Program [Domain] Share Repurchase Program [Domain] Basic (in shares) Weighted average shares outstanding — basic (in shares) Weighted Average Number of Shares Outstanding, Basic Debt instrument, collateral amount Debt Instrument, Collateral Amount Homebuilding Home Building [Member] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Loss Contingencies [Line Items] Loss Contingencies [Line Items] Number of reportable segments Number of Reportable Segments Other Assets [Line Items] Other Assets [Line Items] Other Assets Inventory Impairment Inventory Impairment, Policy [Policy Text Block] Entity Address, City or Town Entity Address, City or Town Schedule of Supplemental Disclosures to the Consolidated Statements Of Cash Flows Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Shares issued for PSUs that vested in the period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Real estate and business taxes Taxes Payable Receivables Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Receivables [Abstract] Receivables [Abstract] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Payments Payments for Self Insurance Payments for Self Insurance Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Return of investments in unconsolidated joint ventures Proceeds from Equity Method Investment, Distribution, Return of Capital Numerator for basic earnings per share Net Income (Loss) Available to Common Stockholders, Basic Subtotal Accounts Receivable, before Allowance for Credit Loss Adjustments Increase (Decrease) in Insurance Liabilities Level 2 Fair Value, Inputs, Level 2 [Member] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Line of credit has a maximum commitment Unsecured revolving credit facility, maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] October 2025 Stock Repurchase Program October 2025 Stock Repurchase Program [Member] October 2025 Stock Repurchase Program Discount rate Discount Rate, Percent Discount Rate, Percent Inventory-related obligations Inventory-related liabilities Liabilities for fixed or determinable amounts associated with tax increment financing entities (TIFE) and liabilities related to inventory not owned Number of communities impaired Number of Communities Impaired Number of Communities Impaired Number of investments in unconsolidated joint ventures Number Of Investments In Unconsolidated Joint Ventures Number of investments in unconsolidated joint ventures. Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Insurance commissions Insurance Commissions and Fees Earnings Per Share Earnings Per Share, Policy [Policy Text Block] Recent Accounting Pronouncements Not Yet Adopted New Accounting Pronouncements, Policy [Policy Text Block] Land Land [Member] Schedule of Financial Information Relating to Company Reporting Segments Segment Reporting [Table Text Block] Use of Estimates Use of Estimates, Policy [Policy Text Block] Change in fair value included in gain (loss) on sale of mortgage loans held for sale Gain (Loss) on Sale of Mortgage Loans Inventories Inventory, Operative Builders [Abstract] Related Party [Axis] Related and Nonrelated Parties [Axis] Repayments under revolving credit facility Repayments of Lines of Credit Schedule of Capitalized Interest Costs Interest Costs [Table Text Block] Interest costs. Inventories Total Inventory, Operative Builders Supplemental disclosures of non-cash activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Document Period End Date Document Period End Date Changes in assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Supplemental disclosures of cash flow information: Supplemental Disclosures of Cash Flow Information [Abstract] Supplemental disclosures of cash flow information. Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Financial Services Financial Services [Text Block] Financial services. Debt instrument, face amount Debt Instrument, Face Amount Stockholders’ Equity Equity [Text Block] Decrease in consolidated inventories not owned Increase (Decrease) in Consolidated Inventories not Owned Increase (decrease) in consolidated inventories not owned. Security Exchange Name Security Exchange Name Treasury stock, at cost — 3,206,888 and 11,303,643 shares at August 31, 2026 and November 30, 2025, respectively Treasury Stock, Common, Value Equity Method Investment, Nonconsolidated Investee [Axis] Equity Method Investment, Nonconsolidated Investee [Axis] Supplemental Disclosure to Consolidated Statements of Cash Flows Cash Flow, Supplemental Disclosures [Text Block] Lessee, Lease, Description [Line Items] Lessee, Lease, Description [Line Items] Stock awards Shares Issued, Value, Share-Based Payment Arrangement, before Forfeiture Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Summary of cash and cash equivalents at end of period: Cash and Cash Equivalent [Abstract] Schedule of Product Warranty Liability Schedule of Product Warranty Liability [Table Text Block] Segment Reporting Segment Reporting, Policy [Policy Text Block] Schedule of Fair Value of Assets Measured on Nonrecurring Basis Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block] Earnings Per Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Payments Standard Product Warranty Accrual, Decrease for Payments Earnings per share: Earnings Per Share [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Increase in inventories and accrued expenses and other liabilities Increase in Inventories and Accrued Expenses and Other Liabilities Due to Land Option and Other Similar Contracts Increase in inventories and accrued expenses and other liabilities due to land option and other similar contracts. Receivables Increase (Decrease) in Accounts and Notes Receivable Total Homebuilding Liabilities Trading Symbol Trading Symbol Purchases of property and equipment, net Payments to Acquire Property, Plant, and Equipment Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Company Selected Measure Name Company Selected Measure Name Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Amortization of debt issuance costs Amortization of Debt Issuance Costs and Discounts Damages from Product Defects Damages from Product Defects [Member] Credit Facility [Domain] Credit Facility [Domain] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Cash flows from operating activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Debt Debt, Policy [Policy Text Block] Commission expenses Sales Commissions and Fees Common stock, beginning balance (in shares) Common stock, ending balance (in shares) Shares, Issued Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Diluted (in shares) Weighted average shares outstanding — diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Dividend paid (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Financial services assets liabilities Financial Services Assets Liabilities [Abstract] Financial services assets liabilities. Underlying Security Market Price Change Underlying Security Market Price Change, Percent Borrowings under revolving credit facility Proceeds from Lines of Credit Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] Operating Lease, Liability, Statement of Financial Position [Extensible Enumeration] Prepaid expenses Prepaid Expense Line of credit facility, current borrowing capacity Line of Credit Facility, Current Borrowing Capacity Gross profits Gross Profit Other Other Receivables Schedule of Significant Unobservable Inputs Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Other, net Increase (Decrease) in Other Operating Assets and Liabilities, Net Award Timing Predetermined Award Timing Predetermined [Flag] Treasury Stock Treasury Stock, Common [Member] Weighted average shares outstanding: Earnings Per Share, Basic and Diluted, Other Disclosures, EPS [Abstract] Earnings Per Share, Basic and Diluted, Other Disclosures, EPS Letters of credit outstanding Letters of Credit Outstanding, Amount Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Stock-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Other Other Assets, Miscellaneous Effective tax rate Effective Income Tax Rate Reconciliation, Percent Funding facilities Funding Facilities Funding Facilities Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Gain on sale of investments Gain (Loss) on Sale of Investments Derivative asset, notional amount Derivative Asset, Notional Amount Fair Value Measurements and Disclosures Fair Value of Financial Instruments, Policy [Policy Text Block] Effect of dilutive securities: Share-based payments (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements All Executive Categories All Executive Categories [Member] Interest Rate Lock Commitments Interest Rate Lock Commitments [Member] Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Deferred tax assets Deferred Tax Assets Liabilities Gross Deferred Tax Assets Liabilities Gross Senior notes Long-Term Debt, Fair Value Plan Name [Domain] Plan Name [Domain] Scenario [Domain] Scenario [Domain] Options outstanding weighted average exercise price (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Lease right-of-use assets Operating Lease, Right-of-Use Asset Movement In Self Insurance Reserve [Roll Forward] Movement In Self Insurance Reserve [Roll Forward] Movement In Self Insurance Reserve [Roll Forward] Deliveries per month Fair Value Estimate Input, Delivery For Period Fair value estimate input, delivery for period Schedule of Balance sheets of unconsolidated joint ventures Balance Sheets of Unconsolidated Joint Ventures [Table Text Block] Balance Sheets of Unconsolidated Joint ventures. Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Segment Information Segment Reporting [Text Block] Credit facility, letters of credit outstanding Long-Term Line of Credit Minimum Minimum Minimum [Member] LOC Facilities LOC Facilities [Member] LOC Facilities [Member] Payments of cash dividends Payments of Ordinary Dividends, Common Stock Expiration Date Trading Arrangement Expiration Date Repayments of principal, 2030 Long-Term Debt, Maturity, Year Four Warranty liability Balance at beginning of period Balance at end of period Standard Product Warranty Accrual Liabilities Liabilities [Abstract] Variable Interest Entities Variable Interest Entity Disclosure [Text Block] Denominator: Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Schedule of Statements of operations of unconsolidated joint ventures Statements of Operations of Unconsolidated Joint Ventures [Table Text Block] Statements of operations of unconsolidated joint ventures. Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Income tax credits and adjustments Income Tax Credits and Adjustments Inventory impairments and land option contract abandonments Inventory-related charges Inventory Impairments and Land Option Contract Abandonments The charge against earnings resulting from the write-down of assets from their carrying value to their fair value. Land option abandonments Loss on Contract Termination Exercise Price Award Exercise Price Restructuring Cost [Table] Restructuring Cost [Table] Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Segment Reporting [Line Items] Segment Reporting [Line Items] Schedule of Self-Insurance Liability Schedule of Self-Insurance Liability [Table Text Block] Schedule of Self-Insurance Liability [Table Text Block] Self Insurance Self Insurance [Member] Self Insurance [Member] Document Quarterly Report Document Quarterly Report Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Segments [Domain] Segments [Domain] Notes Payable Debt Disclosure [Text Block] Accrued interest payable Interest Payable Scenario [Axis] Scenario [Axis] Contract assets for estimated future renewal commissions Contract with Customer, Asset, after Allowance for Credit Loss, Noncurrent Unamortized debt issuance costs, premiums and discounts Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Equity Component [Domain] Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Non-cash change in investment in unconsolidated joint venture, net Non-Cash Increase (Decrease) In Investment in Unconsolidated Joint Venture, Net Non-Cash Increase (Decrease) In Investment in Unconsolidated Joint Venture, Net Adoption Date Trading Arrangement Adoption Date Stated interest rate percentage Debt Instrument, Interest Rate, Stated Percentage Dividends on common stock Dividends, Common Stock, Cash Total stockholders’ equity Beginning balance Ending balance Equity Equity, Attributable to Parent PSU 2022 PSU 2022 [Member] PSU 2022 Assets Assets [Abstract] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Lease liabilities Operating Lease, Liability Fair Value, Nonrecurring Fair Value, Nonrecurring [Member] Insider Trading Policies and Procedures [Line Items] Options outstanding (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Accrued Expenses and Other Liabilities Accounts Payable and Accrued Liabilities Disclosure [Text Block] Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Performance Shares Performance Shares [Member] Selling, general and administrative expenses General and administrative Selling, General and Administrative Expense West Coast West Coast [Member] West coast. Letter of Credit Letter of Credit [Member] Employee compensation and related benefits Accrued Employee Benefits Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Antidilutive securities excluded from computation of earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Entity Central Index Key Entity Central Index Key Relocation of Corporate Headquarters Relocation of Corporate Headquarters [Member] Relocation of Corporate Headquarters Paid-in capital Additional Paid in Capital, Common Stock All Adjustments to Compensation All Adjustments to Compensation [Member] GR Alliance, LLC GR Alliance, LLC [Member] GR Alliance, LLC Equity [Abstract] Equity [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Income Taxes Income Tax, Policy [Policy Text Block] Net cash provided by (used in) operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Legal Matters Legal Matters and Contingencies [Text Block] Repayments of principal, 2026 Long-Term Debt, Maturity, Remainder of Fiscal Year Stockholders’ equity: Equity, Attributable to Parent [Abstract] Income Statement [Abstract] Income Statement [Abstract] Document Transition Report Document Transition Report Financial services income (loss) Financial services income loss [Abstract] Financial services income loss. Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Equity Method Investee, Name [Axis] Investment, Name [Axis] Restructuring Plan [Domain] Restructuring Plan [Domain] Deferred tax assets, net Deferred Income Tax Assets, Net Schedule of Income Tax Expense and Effective Tax Rates Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Inventory Impairments and Land Option Contract Abandonments [Abstract] Inventory Impairments and Land Option Contract Abandonments [Abstract] Inventory impairments and land option contract abandonments. City Area Code City Area Code Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] All Individuals All Individuals [Member] Southwest Southwest [Member] Southwest. Interest Rate Lock Commitments Derivatives, Reporting of Derivative Activity [Policy Text Block] Name Forgone Recovery, Individual Name Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Statement [Line Items] Statement [Line Items] 4.00% Senior notes due June 15, 2031 Senior Notes Due Two Thousand Thirty One At Four Point Zero Zero Percent [Member] Senior Notes Due Two Thousand Thirty One At Four Point Zero Zero Percent Total assets Assets Assets Expenses Financial Services Costs [Abstract] Balance sheet of unconsolidated joint venture Balance Sheets of Unconsolidated Joint Ventures [Abstract] Balance sheets of unconsolidated joint ventures. Gain on sale of investment Gain on sale of investment Equity Securities, FV-NI, Realized Gain (Loss) Unconsolidated VIEs Variable Interest Entity, Not Primary Beneficiary [Member] Equity Method Investment, Nonconsolidated Investee [Domain] Equity Method Investment, Nonconsolidated Investee [Domain] Mortgage loans held for sale Loan, Mortgage, Held-for-Sale, Fair Value Disclosure Stock-Based Compensation Share-Based Payment Arrangement [Text Block] Warranties issued Standard Product Warranty Accrual, Increase for Warranties Issued PEO PEO [Member] Cash surrender value of corporate-owned life insurance contracts Cash Surrender Value of Life Insurance Guarantees Minimum Guarantees, Policy [Policy Text Block] Repayments of principal, 2028 Long-Term Debt, Maturity, Year Two Balance at beginning of period Balance at end of period Self Insurance Reserve Statements of operations of unconsolidated joint venture Statements of Operations of Unconsolidated Joint Ventures [Abstract] Statements of operations of unconsolidated joint ventures. Stock-based compensation expense Share-Based Payment Arrangement, Expense PSU performance measurement period Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Measurement Period Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Measurement Period Warranty Obligations Warranty Obligations [Member] Measurement Basis [Axis] Measurement Basis [Axis] Self-insurance and other legal liabilities Self-Insurance and Other Legal Liabilities Self-insurance and other legal liabilities. Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Employee stock options/other (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Fair Value Measurement Inputs and Valuation Techniques [Line Items] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Cash equivalents Cash Equivalents, at Carrying Value Accounts payable and other liabilities Other Accounts Payable and Accrued Liabilities Payables and Accruals [Abstract] Payables and Accruals [Abstract] Retained Earnings Retained Earnings [Member] Revolving Credit Facility Revolving Credit Facility [Member] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Award Timing Disclosures [Line Items] Schedule of Fair Value Hierarchy, Carrying Values, and Estimated Fair Values of Financial Instruments Fair Value, by Balance Sheet Grouping [Table Text Block] Diluted (in dollars per share) Diluted earnings per share (in dollars per share) Earnings Per Share, Diluted Entity Current Reporting Status Entity Current Reporting Status Net cash provided by (used in) financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Stock repurchases, including excise tax Stock Repurchased During Period Including Excise Tax, value Stock Repurchased During Period Including Excise Tax, value Total Shareholder Return Amount Total Shareholder Return Amount Shares Withheld to Pay Taxes Shares Withheld to Pay Taxes [Member] Shares Withheld to Pay Taxes [Member] Adjustments to reconcile net income to net cash provided by (used in) operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Repayments of principal, 2029 Long-Term Debt, Maturity, Year Three Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Share-based Payment Arrangement [Abstract] Share-Based Payment Arrangement [Abstract] Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Property and equipment, net Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Revenues Total Revenue from Contract with Customer, Excluding Assessed Tax Unsecured revolving credit facility, remaining borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Capitalized interest at beginning of period Capitalized interest at end of period Real Estate Inventory, Capitalized Interest Costs Line of credit facility, unused capacity, commitment fee percentage Line of Credit Facility, Unused Capacity, Commitment Fee Percentage Carrying value of communities of land parcels evaluated for impairment Carrying Value of Communities or Land Parcels Evaluated for Impairment Carrying Value of Communities or Land Parcels Evaluated for Impairment Revenues: Segment Reporting, Revenue [Abstract] Contributions to unconsolidated joint ventures Payments to Acquire Interest in Joint Venture Financial Instruments [Domain] Financial Instruments [Domain] Inventories Inventory Disclosure [Text Block] Stock repurchased, value Stock Repurchased During Period, Value Employee stock options/other Stock Issued During Period, Value, Stock Options Exercised Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Underlying Securities Award Underlying Securities Amount Estimated Fair Value Estimate of Fair Value Measurement [Member] Less: Undistributed earnings reallocated to participating securities Undistributed Earnings Reallocated to Participating Securities Undistributed Earnings Reallocated to Participating Securities Cash Cash Land under development Inventory, Real Estate, Land and Land Development Costs Issuance of common stock under employee stock plans Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Including Option Exercised Expiration period Letters of Credit Outstanding, Term Letters of Credit Outstanding, Term Term Loan Commitment Term Loan Commitment [Member] Term Loan Commitment Inventories Increase (Decrease) in Inventories Other Other Accrued Liabilities Segment Reporting [Table] Segment Reporting [Table] Income Tax Expense (Benefit) Income Tax Expense (Benefit), Continuing Operations [Abstract] Mortgages and land contracts due to land sellers and other loans Mortgages and Land Contracts Due to Land Sellers and Other Loans [Member] Mortgages and land contracts due to land sellers and other loans. Schedule of Equity Method Investments [Table] Equity Method Investment [Table] Schedule of Lease Information Lease, Cost [Table Text Block] Interest Costs Real Estate Inventory, Capitalized Interest Costs [Roll Forward] Mortgage Loans Held for Sale Marketable Securities, Policy [Policy Text Block] Weighted average interest rate (in percentage) Long-Term Debt, Weighted Average Interest Rate, at Point in Time Aggregate carrying value of inventory impacted by pretax, noncash inventory impairment charges Aggregate Carrying Value of Inventory Impacted by Pretax Noncash Inventory Impairment Charges Aggregate carrying value of inventory impacted by pretax, noncash inventory impairment charges. Cash Deposits Cash deposits Cash Deposits on Land Option and Other Similar Contracts Cash deposits on land option and other similar contracts. Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Operating income Operating income Operating Income (Loss) Current Fiscal Year End Date Current Fiscal Year End Date KBHS, LLC KBHS, LLC [Member] KBHS, LLC [Member] Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Expected cost Restructuring and Related Cost, Expected Cost Stock repurchases, including excise tax (in shares) Stock repurchased (in shares) Stock Repurchased During Period, Shares Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Cash dividend declared per common share (in dollars per share) Common Stock, Dividends, Per Share, Declared Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Financial services Financial services Financial Service [Member] Housing Housing [Member] Housing Notes payable Notes and Loans Payable Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] Common stock, shares, issued (in shares) Common Stock, Shares, Issued Measure: Measure [Axis] Assets measured at fair value on a nonrecurring basis Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Abstract] Investments in Unconsolidated Joint Ventures Equity Method Investments and Joint Ventures Disclosure [Text Block] Schedule of Variable Interest Entities Schedule of Variable Interest Entities [Table Text Block] Other Assets Other Assets Disclosure [Text Block] Treasury stock (in shares) Treasury stock, beginning balance (in shares) Treasury stock, ending balance (in shares) Treasury Stock, Common, Shares Equity Components [Axis] Equity Components [Axis] Product and Services [Domain] Product and Service [Domain] Deferred tax assets, valuation allowance Deferred Tax Assets, Valuation Allowance Liability for relocation cost Restructuring Reserve, Current Entity Interactive Data Current Entity Interactive Data Current Self-insurance provided Expenses Associated with Self Insurance Expenses associated with self-insurance. Repayments of principal, thereafter Long​ Term ​Debt​ Maturities​ Repayments ​Of​ Principal​ After ​Year​ Four Long​ Term ​Debt​ Maturities​ Repayments ​Of​ Principal​ After ​Year​ Four Variable Interest Entity [Line Items] Variable Interest Entity [Line Items] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Entity Small Business Entity Small Business Other comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Marketing expenses Marketing and Advertising Expense Termination Date Trading Arrangement Termination Date Tax payments associated with stock-based compensation awards (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Table] Fair Value, Recurring and Nonrecurring [Table] Senior unsecured term loan due November 12, 2029 Term Loan [Member] Term Loan Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Pre-acquisition costs related to land option contracts and other similar contracts Acquisition Costs Related To Land Option Contracts And Other Similar Contracts Acquisition costs related to land option contracts and other similar contracts. Nondeductible expense Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount Average selling price Fair Value Estimate Input, Average Selling Price Fair value estimate input, average selling price Number of communities and various other land parcels impacted by pretax, noncash inventory impairment charges Number of Communities and Various Other Land Parcels Impacted by Pretax Noncash Inventory Impairment Charges Number of communities and various other land parcels impacted by pretax, noncash inventory impairment charges. Document Type Document Type Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value as of Grant Date Award Grant Date Fair Value Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Stock repurchase program, remaining authorized repurchase amount Share Repurchase Program, Remaining Authorized, Amount Arrangement Duration Trading Arrangement Duration Statement of Stockholders' Equity [Abstract] Local Phone Number Local Phone Number Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Revenues Revenues Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] 6.875% Senior notes due June 15, 2027 Senior Notes Due Two Thousand Twenty Seven At Six Point Eight Seven Five Percent [Member] Senior Notes Due Two Thousand Twenty Seven At Six Point Eight Seven Five Percent Equity in income of unconsolidated joint ventures Equity in income of unconsolidated joint ventures Equity in income (loss) of unconsolidated joint ventures Equity in income of unconsolidated joint venture Income (Loss) from Equity Method Investments Other Assets [Abstract] Other Assets [Abstract] Accounts payable, accrued expenses and other liabilities Increase (Decrease) in Accounts Payable and Accrued Liabilities Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] Inventory impairment charges Inventory Impairment Charges Impairment of Real Estate Interest income and other Investment Income, Interest and Other Investment Income, Interest and Other Liabilities and stockholders’ equity Liabilities and equity Liabilities and Equity [Abstract] Award Type [Domain] Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Fair Value Disclosures Fair Value Disclosures [Text Block] Changes in the Company's warranty liability Movement in Standard Product Warranty Accrual [Roll Forward] Level 3 Fair Value, Inputs, Level 3 [Member] Schedule of Variable Interest Entities [Table] Variable Interest Entity [Table] Supplemental Cash Flow Information [Abstract] Supplemental Cash Flow Information [Abstract] Title services Title Services Title services. Tax payments associated with stock-based compensation awards (in shares) Treasury Stock, Shares, Acquired Interest paid, net of amounts capitalized Interest Paid, Net of Capitalized Amount Interest Paid, Net of Capitalized Amount Accounts payable and accrued expenses Accounts Payable and Accrued Liabilities PEO Name PEO Name Inventories Inventory, Real Estate Restricted cash Restricted Cash Customer deposits Contract with Customer, Liability Income taxes paid Income Tax Paid, before Refund Received Schedule of Short-term Debt [Table] Short-Term Debt [Table] Other assets Total Other Assets Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Notes payable Notes Payable Tax benefits from share-based compensation Share-Based Payment Arrangement, Expense, Tax Benefit Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Tax payments associated with stock-based compensation awards Treasury Stock, Value, Acquired, Cost Method Receivables Accounts and Financing Receivable, after Allowance for Credit Loss, Noncurrent Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Number of principal businesses Number of Principal Businesses Number of Principal Businesses Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Other land option contracts and other similar contracts Non-VIE Land Option Contracts And Other Similar Contracts [Member] Non-VIE Land Option Contracts And Other Similar Contracts[Member] Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Measurement Frequency [Domain] Measurement Frequency [Domain] Debt Instrument [Axis] Debt Instrument [Axis] Performance bonds Performance Bonds Performance bonds. Ownership interest in joint venture Equity Method Investment, Ownership Percentage Stock-based compensation Share-Based Payment Arrangement, Noncash Expense Equity Method Investee, Name [Domain] Investment, Name [Domain] Schedule of Inventories Schedule of Inventory, Current [Table Text Block] Leases Lessee, Operating Leases [Text Block] Repayments of principal, 2027 Long-Term Debt, Maturity, Year One Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Basic (in dollars per share) Basic earnings per share (in dollars per share) Earnings Per Share, Basic Stock repurchases and excise taxes paid Payments for Repurchase of Common Stock Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Construction and land costs Cost of Revenue Award Type [Axis] Award Type [Axis] Short-term lease cost Short-Term Lease, Cost Unconsolidated joint venture Joint Venture Formation, Fair Value of Joint Venture Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Retained earnings Retained Earnings (Accumulated Deficit) Restructuring and Related Activities [Abstract] Product and Service [Axis] Product and Service [Axis] Equity securities without readily determinable fair values Equity Securities, FV-NI Homes completed or under construction Inventory, Homes under Construction Aggregate Purchase Price Aggregate purchase price of land Aggregate Purchase Price Associated with Land Option and Other Similar Contracts Aggregate purchase price associated with land option and other similar contracts. Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Common Stock Common Stock [Member] Fair Value, Disclosure Item Amounts [Domain] Fair Value Measurement [Domain] Lease expense Operating Lease, Cost Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Cover [Abstract] Equity Method Investment, Nonconsolidated Investee or Group of Investees Equity Method Investment, Nonconsolidated Investee or Group of Investees [Member] Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Equity Awards Adjustments Equity Awards Adjustments [Member] Structural warranty provided by company (in years) Structural Warranty Provided by Company Structural warranty provided by the company. Total liabilities and stockholders’ equity Liabilities and Equity Stock Options Share-Based Payment Arrangement, Option [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Segments [Axis] Segments [Axis] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Plan Name [Axis] Plan Name [Axis] Relocation cost Restructuring Charges Southeast Southeast [Member] Southeast. Related Party [Domain] Related and Nonrelated Parties [Domain] Schedule of Receivables Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Inventory Disclosure [Abstract] Inventory Disclosure [Abstract] Tabular List, Table Tabular List [Table Text Block] Other Other expense, net Other Nonoperating Income (Expense) Refundable deposits and bonds Deposits Assets Senior unsecured term loan due November 12, 2029 Senior Unsecured Term Loan Due August 25, 2026 [Member] Senior Unsecured Term Loan Due August 25, 2026 Schedule of Accrued Expenses and Other Liabilities Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Name Awards Close in Time to MNPI Disclosures, Individual Name Warranty on electrical and other building systems (in years) Warranty on Electrical Heating Cooling Plumbing and Other Building Systems Warranty on Electrical Heating Cooling Plumbing and Other Building Systems Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] General and administrative expenses General and Administrative Expense Add: Undistributed earnings allocated to participating securities Undistributed Earnings (Loss) Allocated to Participating Securities, Diluted Minimum number of affected homes for construction defect claims Minimum Number of Affected Homes for Construction Defect Claims Minimum Number of Affected Homes for Construction Defect Claims Schedule of Financial Services Assets and Liabilities Schedule of Other Assets and Other Liabilities [Table Text Block] Adjustment to Compensation: Adjustment to Compensation [Axis] Loss Contingency, Information about Litigation Matters [Abstract] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Restructuring Cost and Reserve [Line Items] Restructuring Cost and Reserve [Line Items] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Less: Undistributed earnings allocated to participating securities Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Credit Facility [Axis] Credit Facility [Axis] Relocation of Corporate Headquarters Restructuring and Related Activities Disclosure [Text Block] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Fair Value Assets, Fair Value Disclosure Accounts payable Accounts Payable Land held for future development or sale Inventory, Land Held for Development and Sale Name Measure Name Income Taxes Income Tax Disclosure [Text Block] Pay vs Performance Disclosure [Line Items] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Hierarchy and NAV [Domain] Debt Instrument [Line Items] Debt Instrument [Line Items] Proceeds from sale of investment Proceeds from Sale of Equity Securities, FV-NI Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Corporate and Other Corporate Segment and Other Operating Segment [Member] Paid-in Capital Additional Paid-in Capital [Member] Total pretax income Income (Loss) from Continuing Operations before Income Taxes, Domestic Entity Filer Category Entity Filer Category Accrued expenses and other liabilities Total Accrued Liabilities Name Trading Arrangement, Individual Name Payments on mortgages and land contracts due to land sellers and other loans Proceeds from (Repayments of) Secured Debt Cash and cash equivalents Cash and Cash Equivalent Long-Term Debt, Fiscal Year Maturity [Abstract] Long-Term Debt, Fiscal Year Maturity [Abstract] Retirement of treasury stock Treasury Stock, Retired, Cost Method, Amount Company Selected Measure Amount Company Selected Measure Amount Distributions of earnings from unconsolidated joint ventures Proceeds from Equity Method Investment, Distribution Income taxes receivable Income Taxes Receivable Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments and Joint Ventures [Abstract] Interest amortized to construction and land costs Real Estate Inventory, Capitalized Interest Costs, Cost of Sales Interest incurred Real Estate Inventory, Capitalized Interest Costs Incurred 7.25% Senior notes due July 15, 2030 Senior Notes Due Two Thousand Thirty At Seven Point Two Five Percent [Member] Senior Notes Due Two Thousand Thirty At Seven Point Two Five Percent Warranty for other components of home (in years) Warranty for Other Components of Home Warranty for other components of a home. Stock awards (in shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Accounts and Financing Receivables [Table] Non-PEO NEO Non-PEO NEO [Member] Senior Notes Senior Notes [Member] Entity Address, Address Line One Entity Address, Address Line One Income tax expense Income tax expense Income Tax Expense (Benefit) Construction and land costs Cost of Product and Service Sold Award Timing Method Award Timing Method [Text Block] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Consolidation Consolidation, Policy [Policy Text Block] Net decrease in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forecast Forecast [Member] Receivables Total Accounts and Financing Receivable, after Allowance for Credit Loss Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Net income Net income Net Income (Loss) Attributable to Parent Insurance coverage amount for construction Deductibles For Project Specific Insurance Coverage For Construction Defect Risk Deductibles For Project Specific Insurance Coverage For Construction Defect Risk Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Statement [Table] Statement [Table] Restatement Determination Date: Restatement Determination Date [Axis] Self-Insurance Self Insurance Reserve [Policy Text Block] Leases Lessee, Leases [Policy Text Block] Warranty Standard Product Warranty, Policy [Policy Text Block] Schedule of Other Assets Schedule of Other Assets [Table Text Block] Central Central [Member] Central. Revenues Revenues [Abstract] Retirement of treasury stock (in shares) Treasury Stock, Shares, Retired Restricted Stock and Performance Unit Shares Restricted Stock and Performance Unit Shares [Member] Restricted Stock and Performance Unit Shares [Member] Number of land parcels or communities evaluated for recoverability Number of Active Land Parcels or Communities Evaluated for Recoverability Number of land parcels or communities evaluated for recoverability. Basis of Presentation and Significant Accounting Policies Basis of Presentation and Significant Accounting Policies [Text Block] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Numerator: Net Income (Loss) Available to Common Stockholders, Diluted [Abstract]