Dividends per share, cash paid (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Less accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Basis of presentation and significant accounting policies Significant Accounting Policies [Text Block] Range [Domain] Statistical Measurement [Domain] Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Restricted cash Restricted Cash, Current Award Timing Predetermined Award Timing Predetermined [Flag] Related Party Transaction [Axis] Related Party Transaction [Axis] Investment in flow-through entity Deferred Tax Assets, Investment in Subsidiaries Excess tax (benefit) or deficiency on equity-based compensation Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-Based Payment Arrangement, Percent Finite-Lived Intangible Assets, Net, Amortization Expense, Rolling Maturity [Abstract] Finite-Lived Intangible Assets, Net, Amortization Expense, Rolling Maturity [Abstract] Entity File Number Entity File Number Premiums payable Premiums Payable [Policy Text Block] Premiums Payable [Policy Text Block] Additional paid-in capital Additional Paid-in Capital [Member] Initial Public Offering IPO [Member] Deferred financing costs Debt, Policy [Policy Text Block] Tabular List, Table Tabular List [Table Text Block] Leases [Abstract] Notes Payable to Banks Notes Payable to Banks [Member] Vivint Smart Home's Vivint Smart Home's [Member] Vivint Smart Home's Recently adopted accounting pronouncements and Accounting pronouncements not yet adopted New Accounting Pronouncements, Policy [Policy Text Block] Write offs Financing Receivable, Allowance for Credit Loss, Writeoff Renewal commissions Renewal Commissions [Member] Renewal Commissions Cost to obtain franchise contracts Contract with Customer, Asset, after Allowance for Credit Loss, Current Interest income Interest Income, Interest-Earning Asset Cash paid for amounts included in the measurement of lease liabilities Cash Flow, Lessee [Abstract] Cash Flow, Lessee Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Basic (in dollars per share) Earnings per share of Class A common stock - Basic (in dollars per share) Earnings Per Share, Basic Adjustment to Compensation: Adjustment to Compensation [Axis] Related Party Transactions Related Party Transactions Disclosure [Text Block] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Revenues Revenue from Contract with Customer [Text Block] Subsidiary or Equity Method Investee, Sale of Stock, Type [Table] Subsidiary or Equity Method Investee, Sale of Stock, Type [Table] Stock, Class of Stock [Table] Stock, Class of Stock [Table] New deferrals Contract with Customer, New Performance Obligation Contract with Customer, New Performance Obligation Deferred income taxes Deferred Federal, State and Local, Tax Expense (Benefit) [Abstract] Activity under employee stock purchase plan (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Leverage Ratio Threshold [Axis] Leverage Ratio Threshold [Axis] Leverage Ratio Threshold [Axis] Schedule of Reconciliation of Cash and Restricted Cash Schedule of Cash and Cash Equivalents [Table Text Block] Total current income taxes Current Income Tax Expense (Benefit) Total Revenue, Remaining Performance Obligation, Amount Initial franchise fees Initial Franchise Fees [Member] Initial Franchise Fees Adjustment to Compensation, Amount Adjustment to Compensation Amount Concentration risk percentage Concentration Risk, Percentage Unamortized discount and issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Other assets Increase (Decrease) in Other Operating Assets Consolidation Consolidation, Policy [Policy Text Block] Equity-based compensation Share-Based Payment Arrangement, Noncash Expense Employer match, vesting period Defined Contribution Plan, Employers Matching Contribution, Vesting Period Defined Contribution Plan, Employers Matching Contribution, Vesting Period Stock Options Share-Based Payment Arrangement, Option [Member] Noncontrolling interest income Noncontrolling Interest, Net Interest Income From Diluted Noncontrolling Interest, Net Interest Income From Diluted Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Total franchise fees receivable Financing Receivable, after Allowance for Credit Loss Cash paid for income taxes Income Taxes Paid % Effective Income Tax Rate Reconciliation, Percent [Abstract] Accounts and Financing Receivables [Table] Accounts and Financing Receivables [Table] Impairment expense Asset Impairment Charges Dividends declared Dividends declared Dividends, Common Stock, Cash Total stockholders' equity Equity, Attributable to Parent Insider Trading Policies and Procedures [Line Items] Equity-based compensation expense Share-Based Payment Arrangement, Expense Schedule of Property and Equipment Property, Plant and Equipment [Table Text Block] Common stock shares authorized (in shares) Common Stock, Shares Authorized Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Contract Liability [Roll Forward] Contract Liability [Roll Forward] Contract Liability Shares issued (in shares) Stock Issued During Period, Shares, New Issues Current Assets: Assets, Current [Abstract] Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period Total liabilities and equity Liabilities and Equity Other franchise revenues Other Franchise Revenues [Member] Other Franchise Revenues Noncontrolling Interest [Line Items] Noncontrolling Interest [Line Items] Stock Options Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Concentration Risk Benchmark [Axis] Concentration Risk Benchmark [Axis] Conversion ratio Sale Of Stock, Conversion Of Existing Interests, Conversion Ratio Sale Of Stock, Conversion Of Existing Interests, Conversion Ratio Carrier Two Carrier Two [Member] Carrier Two [Member] Liabilities and Stockholders’ Equity Liabilities and Equity [Abstract] State and Local Jurisdiction State and Local Jurisdiction [Member] Other Income: Other Nonoperating Income (Expense) [Abstract] Cover [Abstract] Maximum Maximum [Member] Options vested and exercisable as of December 31, 2025 (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Weighted average amortization period (years) Finite-Lived Intangible Asset, Useful Life Revolving Credit Facility Due 2032 Revolving Credit Facility Due 2032 [Member] Revolving Credit Facility Due 2032 Less: net income attributable to noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Accounting Policies [Abstract] Accounting Policies [Abstract] Intangible assets, net Finite-Lived Intangible Assets, Net Schedule of Future Maturity of Lease Liability Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Income Tax Contingency [Line Items] Income Tax Contingency [Line Items] Concentration Risk Type [Domain] Concentration Risk Type [Domain] Repayment of notes payable Repayments of Secured Debt Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Debt Instrument [Line Items] Debt Instrument [Line Items] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Debt Repayment, Balloon Payment Debt Repayment, Balloon Payment [Member] Debt Repayment, Balloon Payment (Gain) loss on disposal of fixed assets Gain (Loss) on Disposition of Property Plant Equipment, Excluding Oil and Gas Property and Timber Property Meals and entertainment Effective Income Tax Rate Reconciliation, Nondeductible Expense, Meals and Entertainment, Amount Dividends Payable [Line Items] Dividends Payable [Line Items] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Pay vs Performance Disclosure [Line Items] Total lease liabilities Future maturity of lease liability Operating Lease, Liability Retirement Benefits [Abstract] Retirement Benefits [Abstract] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Book Of Business Book Of Business [Member] Book Of Business Receivable from franchisees, net of current portion Accounts Receivable, Net, Noncurrent - Franchise Receivable Accounts Receivable, Net, Noncurrent - Franchise Receivable Mark K. Miller [Member] Mark K. Miller Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Income before taxes Income before taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Additional commitments Line Of Credit Facility, Maximum Borrowing Capacity, Additional Commitments Line Of Credit Facility, Maximum Borrowing Capacity, Additional Commitments Redemption of LLC Units (in shares) Redemption of LLC Units (in shares) Stock Redeemed or Called During Period, Shares Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Schedule of Cash Paid for Income Taxes Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Note payable Long-Term Debt, Current Maturities Company Selected Measure Amount Company Selected Measure Amount 2028 Lessee, Operating Lease, Liability, to be Paid, Year Three Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Debt issuance costs Debt Issuance Costs, Gross Carrier Three Carrier Three [Member] Carrier Three S 2025 Q1 Dividends S 2025 Q1 Dividends [Member] S 2025 Q1 Dividends Expirations (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price Name Measure Name Texas TEXAS Schedule of Equity-Based Compensation Expense Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Secured Debt Secured Debt [Member] Lease liability Short term lease liabilities Operating Lease, Liability, Current Nontaxable or nondeductible items: Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent [Abstract] Noncontrolling interest, ownership percentage Noncontrolling Interest, Ownership Percentage Noncontrolling Interest, Ownership Percentage Class of Stock [Line Items] Class of Stock [Line Items] Document Fiscal Period Focus Document Fiscal Period Focus Receivable from franchisees, net Accounts Receivable Net, Franchise Receivable Accounts Receivable Net, Franchise Receivable Commissions and agency fees receivable and Receivable from franchisees Receivable [Policy Text Block] Award Timing Method Award Timing Method [Text Block] Furniture, fixtures, and equipment Furniture & fixtures Furniture and Fixtures [Member] Award Type [Axis] Award Type [Axis] Contract liabilities, net of current portion Contract with Customer, Liability, Noncurrent Income Tax Contingency [Table] Income Tax Contingency [Table] Legal Entity [Axis] Legal Entity [Axis] Member distributions Payment For Partnership Distributions Payment For Partnership Distributions Total assets Assets 2026 Finite-Lived Intangible Asset, Expected Amortization, Year One Trading Symbol Trading Symbol 2029 Lessee, Operating Lease, Liability, to be Paid, Year Four Cash and cash equivalents and Restricted cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] 2027 Revenue, Remaining Performance Obligation, Recognized in Year Two Revenue, Remaining Performance Obligation, Recognized in Year Two Financing Receivable, Allowance for Credit Losses [Roll Forward] Financing Receivable, Allowance for Credit Loss [Roll Forward] Entity Address, City or Town Entity Address, City or Town Computer software & web domain Computer Software & Web [Member] Computer Software & Web Dividends Dividends [Text Block] Dividends Cash flows from operating activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Percentage due to related parties Related Party Transaction, Percentage Due To Related Parties Related Party Transaction, Percentage Due To Related Parties Receivable Type [Axis] Receivable Type [Axis] Greater than 1.50 Threshold Two [Member] Threshold Two [Member] Intangible assets Intangible Assets Disclosure [Text Block] Concentration Risk Type [Axis] Concentration Risk Type [Axis] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Corporate-owned locations (in locations) Number Of Corporate-Owned Locations Number Of Corporate-Owned Locations Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Books of business Property, Plant and Equipment, Additions Share repurchase program, increase, amount Share Repurchase Program, Increase, Amount Share Repurchase Program, Increase, Amount 2029 Finite-Lived Intangible Asset, Expected Amortization, Year Four Entity Emerging Growth Company Entity Emerging Growth Company 2028 Long-Term Debt, Maturity, Year Three Dividends per share (in dollars per share) Common Stock, Dividends, Per Share, Declared Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Operating leases Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Beginning balance, outstanding (in shares) Ending balance, outstanding, (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number 2026 Revenue, Remaining Performance Obligation, Recognized in Year One Revenue, Remaining Performance Obligation, Recognized in Year One 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] Document Financial Statement Error Correction [Flag] Document Financial Statement Error Correction [Flag] State income tax expense (benefit), net of federal benefit Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Pre-IPO LLC Related Party [Member] Distributions Payments of Distributions to Affiliates Common stock shares outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Bad debts Bad debt expense Charges to bad debts Accounts Receivable, Credit Loss Expense (Reversal) Schedule of Income Tax Expense Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Property & equipment Property, Plant and Equipment, Policy [Policy Text Block] PEO PEO [Member] Allowance for uncollectible agency fees Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Proceeds from notes payable Proceeds from Issuance of Secured Debt Schedule of Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Customer premiums, net Increase (Decrease) In Customer Premiums Increase (Decrease) In Customer Premiums Income Tax Paid, by Individual Jurisdiction [Line Items] Income Tax Paid, by Individual Jurisdiction [Line Items] Changes in operating assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Exercise of stock options Stock Issued During Period, Value, Stock Options Exercised 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] Schedule of Expected Amortization Expense Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Expected volatility Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Accumulated deficit Retained Earnings [Member] Income Tax Jurisdiction [Axis] Income Tax Jurisdiction [Axis] Effective interest rate Debt Instrument, Interest Rate, Effective Percentage Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Disclosure of Compensation Related Costs, Share-based Payments [Abstract] Share-Based Payment Arrangement [Abstract] Cash and cash equivalents, and restricted cash, beginning of period Cash and cash equivalents, and restricted cash, end of period Cash and cash equivalents, and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement [Abstract] Income Statement [Abstract] Tax expense (benefit) Income tax expense (benefit) Income Tax Expense (Benefit) Interest rate Interest Rate Debt Instrument, Basis Spread on Variable Rate Debt Covenant [Axis] Debt Covenant [Axis] Debt Covenant Class B Common Stock Common Class B [Member] Sale of Stock [Domain] Sale of Stock [Domain] Intangible assets, net of accumulated amortization Intangible Assets, Net (Excluding Goodwill) Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] New business commissions New Business Commissions [Member] New Business Commissions Ownership interest held by non-controlling interest holders Noncontrolling Interest, Weighted Average Ownership Percentage By Noncontrolling Owners Noncontrolling Interest, Weighted Average Ownership Percentage By Noncontrolling Owners Product and Service [Domain] Product and Service [Domain] Customer Concentration Risk Customer Concentration Risk [Member] Options unvested as of December 31, 2025 (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Exercise Price Property and equipment, gross Property, Plant and Equipment, Gross Total stockholders' equity Parent Parent [Member] Net Income Net income Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Rent Expense: Lessee, Operating Sublease, Description [Abstract] Matching contributions Defined Contribution Plan, Employer Discretionary Contribution Amount Term of franchise contract Franchise Fees, Term of Contract Franchise Fees, Term of Contract Tax effect of income not subject to entity level federal income tax Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount Income Tax Paid, by Individual Jurisdiction [Table] Income Tax Paid, by Individual Jurisdiction [Table] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Proceeds from stock options exercised Proceeds from Stock Options Exercised City Area Code City Area Code Schedule of Allowance For Uncollectible Franchise Fees Financing Receivable, Allowance for Credit Loss [Table Text Block] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Federal Income Tax Paid, Federal, after Refund Received All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Options expected to vest as of December 31, 2025, Weighted-average Remaining Contractual Life (Years) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Tax effect of income not subject to entity level federal income tax Effective Income Tax Rate Reconciliation, Tax Exempt Income, Percent Goosehead Financial, LLC Goosehead Financial, LLC [Member] Goosehead Financial, LLC [Member] 2030 Revenue, Remaining Performance Obligation, Recognized in Year Five Revenue, Remaining Performance Obligation, Recognized in Year Five Schedule of Contract Balances Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] General and administrative expenses General and Administrative Expense Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Unvested at beginning of year (in shares) Unvested at end of year (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested, Number of Shares Employer match, percentage of salary deferral Defined Contribution Plan, Employer Matching Contribution, Percent of Match Cash paid for asset disposals Payments for Disposal of Assets Payments for Disposal of Assets Related Party Transactions [Abstract] Term Loan B-1 Term Loan B-1 [Member] Term Loan B-1 Property, plant and equipment, useful life Property, Plant and Equipment, Useful Life Subsequent Event Subsequent Event [Member] Schedule of Stock Option Valuation Assumptions Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Net lease cost Lease, Cost Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Schedule of Lease Information, Rent Expense and Supplemental Cash Flow Information Lease, Cost [Table Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Depreciation expense Depreciation Impairment of property and equipment Tangible Asset Impairment Charges Goosehead Insurance, Inc. Goosehead Insurance, Inc. [Member] Goosehead Insurance, Inc. [Member] Federal Deferred Federal Income Tax Expense (Benefit) Equity Components [Axis] Equity Components [Axis] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Sublease income Sublease Income Auditor Name Auditor Name Excess tax (benefit) or deficiency on equity-based compensation Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-Based Payment Arrangement, Amount Franchise fees receivable Franchise Fees Receivable [Member] Franchise Fees Receivable [Member] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Concentration Risk [Table] Concentration Risk [Table] Second Amended and Restated Credit Agreement Second Amended and Restated Credit Agreement [Member] Second Amended and Restated Credit Agreement Number of reportable segments Number of Reportable Segments Commissions and agency fees receivable, net Accounts Receivable, Net, Current - Commissions And Agency Fees Receivable Accounts Receivable, Net, Current - Commissions And Agency Fees Receivable Expired (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expirations in Period Supplemental disclosure of cash flow data: Supplemental Cash Flow Information [Abstract] Advertising Advertising Cost [Policy Text Block] Thereafter Revenue, Remaining Performance Obligation, Recognized After Year Five Revenue, Remaining Performance Obligation, Recognized After Year Five Other Performance Measure, Amount Other Performance Measure, Amount Weighted-average Exercise Price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Schedule of Restrictions on Cash and Cash Equivalents Restrictions on Cash and Cash Equivalents [Table Text Block] Debt issuance cost Payments of Debt Issuance Costs Entity Address, State or Province Entity Address, State or Province Impairment of right-of-use-asset Operating Lease, Impairment Loss Framework for measuring fair value Fair Value Measurement, Policy [Policy Text Block] Related Party [Domain] Related and Nonrelated Parties [Domain] Total current liabilities Liabilities, Current $ Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract] Over-Allotment Option Over-Allotment Option [Member] Increase (decrease) in Receivable from franchisees, net Increase (Decrease) in Receivables from Franchisees Increase (Decrease) in Receivables from Franchisees Web domain Internet Domain Names [Member] Individual: Individual [Axis] Common stock exchangeable shares Conversion Ratio, Common Stock Conversion Ratio, Common Stock Income Tax Jurisdiction [Domain] Income Tax Jurisdiction [Domain] Document Annual Report Document Annual Report Entities [Table] Entities [Table] Entity [Domain] Entity [Domain] Net cash used for investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation 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] Cash paid during the year for interest Interest Paid, Excluding Capitalized Interest, Operating Activity Document Fiscal Year Focus Document Fiscal Year Focus Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Right-of-use asset Operating Lease, Right-of-Use Asset Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Ownership interest held by noncontrolling interest holders Subsidiary, Ownership Percentage, Noncontrolling Owner Income tax expense (benefit) Effective Income Tax Rate Reconciliation, Percent Entity Interactive Data Current Entity Interactive Data Current Gross operating lease cost Operating Lease, Cost Capitalized software development costs Payments for Software Software costs Computer Software, Intangible Asset [Member] Liabilities under tax receivable agreement Liabilities Under Tax Receivable Agreement, Current Liabilities Under Tax Receivable Agreement, Current Period for recognition Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Tax Receivable Agreement Tax Receivable Agreement [Member] Tax Receivable Agreement [Member] Litigation Legal Matters and Contingencies [Text Block] 2028 Revenue, Remaining Performance Obligation, Recognized in Year Three Revenue, Remaining Performance Obligation, Recognized in Year Three Exercise of stock options (in shares) Exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Equity [Abstract] Equity [Abstract] Revenue recognition Revenue from Contract with Customer [Policy Text Block] Number of LLC units outstanding (in shares) Weighted Average General Partnership Units Outstanding Options vested and exercisable as of December 31, 2025 Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value Nondeductible equity-based compensation Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Amount Schedule of Ownership Interests Schedule of Other Ownership Interests [Table Text Block] Segment information Segment Reporting Disclosure [Text Block] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards Federal Current Federal Tax Expense (Benefit) Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] 2025 Initial Term Loan 2025 Initial Term Loan [Member] 2025 Initial Term Loan Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Ownership [Domain] Ownership [Domain] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Amortization expense Amortization of Intangible Assets Lease Accounting Lessee, Leases [Policy Text Block] Restricted cash Restricted Cash and Cash Equivalent, Current Redemption of LLC Units Stock Redeemed or Called During Period, Value Deferred income taxes, net Deferred Income Tax Assets, Net Share repurchases Stock Repurchased During Period, Value Depreciation and amortization Depreciation, Depletion and Amortization Other assets Other Assets, Noncurrent Customer [Domain] Customer [Domain] Entity Central Index Key Entity Central Index Key PEO Name PEO Name Goosehead Insurance Holding, LLC Goosehead Insurance Holding, LLC Goosehead Insurance Holding, LLC [Member] Goosehead Insurance Holding, LLC [Member] Due to related parties Liabilities Under Tax Receivable Agreement Liabilities Under Tax Receivable Agreement Schedule of Maturities of Note Payable Schedule of Maturities of Long-Term Debt [Table Text Block] Revenues Revenues Revenues Leverage Ratio Threshold [Domain] Leverage Ratio Threshold [Domain] [Domain] for Leverage Ratio Threshold [Axis] 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] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Revolving Credit Facility Revolving Credit Facility [Member] Minimum age to be eligible Defined Contribution Plan, Eligibility, Minimum Age Defined Contribution Plan, Eligibility, Minimum Age Arrangement Duration Trading Arrangement Duration Expected volatility rate, maximum Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum Computer equipment Computer equipment Computer Equipment [Member] Contract liabilities Contract with Customer, Liability, Current Nontaxable or nondeductible items: Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount [Abstract] Segments [Axis] Segments [Axis] Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Local Phone Number Local Phone Number Class of Stock [Domain] Class of Stock [Domain] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Income taxes at U.S. federal statutory rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Subsequent Event Type [Axis] Subsequent Event Type [Axis] Thereafter Long-Term Debt, Maturity, after Year Five Equity-based compensation Share-Based Payment Arrangement [Text Block] Stock repurchased and retired during period (in shares) Stock Repurchased and Retired During Period, Shares Liabilities under tax receivable agreement, net of current portion Liabilities Under Tax Receivable Agreement, Noncurrent Liabilities Under Tax Receivable Agreement, Noncurrent Assets Assets [Abstract] Note payable, net of current portion Long-Term Debt, Excluding Current Maturities Credit Facility [Axis] Credit Facility [Axis] Underlying Security Market Price Change Underlying Security Market Price Change, Percent 2028 Finite-Lived Intangible Asset, Expected Amortization, Year Three Franchise fees receivable Financing Receivable, before Allowance for Credit Loss Debt Instrument [Axis] Debt Instrument [Axis] Employee benefit obligation Retirement Benefits [Text Block] Loss on debt extinguishment Gain (Loss) on Extinguishment of Debt Credit Facility [Domain] Credit Facility [Domain] Intangible assets, gross Finite-Lived Intangible Assets, Gross 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] Entity Address, Address Line One Entity Address, Address Line One Stock repurchased and retired during period Treasury Stock, Value, Acquired, Cost Method Conversion ratio Common Stock, Conversion Of Existing Interests Common Stock, Conversion Of Existing Interests Meals and entertainment Effective Income Tax Rate Reconciliation, Nondeductible Expense, Meals and Entertainment, Percent Lease liability, net of current portion Long term lease liabilities Operating Lease, Liability, Noncurrent Entity Voluntary Filers Entity Voluntary Filers Ownership [Axis] Ownership [Axis] Commissions and agency fees Commissions And Agency Fees [Member] Commissions And Agency Fees [Member] New business royalty fees New Business Royalty Fees [Member] New Business Royalty Fees Leverage Ratio Leverage Ratio Leverage Ratio Fair Value as of Grant Date Award Grant Date Fair Value Property, Plant and Equipment [Abstract] Property, Plant and Equipment [Abstract] Entity Registrant Name Entity Registrant Name Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Net operating loss carryforwards Operating Loss Carryforwards Schedule of Long Term Debt Schedule of Long-Term Debt Instruments [Table Text Block] Employee compensation and benefits Labor and Related Expense Forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Nonvested Options Forfeited, Number of Shares Relationship to Entity [Domain] Title and Position [Domain] Options unvested as of December 31, 2025 (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number Equity-based compensation expense Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Write offs Contract with Customer, Liability, Writeoffs Contract with Customer, Liability, Writeoffs Related Party Transaction [Line Items] Related Party Transaction [Line Items] Other state and local State and Local Tax Jurisdiction, Other [Member] 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