Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum [Member] Asset Acquisition [Table] Asset Acquisition [Table] Statistical Measurement [Domain] Statistical Measurement [Domain] Title of 12(b) Security Title of 12(b) Security Net income attributable to common stockholders—diluted Net Income (Loss) Available to Common Stockholders, Diluted Document Fiscal Year Focus Document Fiscal Year Focus Acquisition related costs Business Combination, Acquisition-Related Cost, Expense Adjustment to Compensation, Amount Adjustment to Compensation Amount Number of Units (in thousands) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Common stock—$0.0001 par value per share—296,686 shares authorized; 63,879 and 71,289 shares issued and outstanding as of June 30, 2026 and December 31, 2025 Common Stock, Value, Issued Tax payments related to net-share settlements on restricted stock units Payment, Tax Withholding, Share-Based Payment Arrangement Line of Credit Line of Credit [Member] Schedule of Sales and Marketing Expense Schedule of Other Operating Cost and Expense, by Component [Table Text Block] Entity Ex Transition Period Entity Ex Transition Period Restatement Determination Date Restatement Determination Date Amendment Flag Amendment Flag Current liabilities: Liabilities, Current [Abstract] Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Developed Technology Rights Developed Technology Rights [Member] Consumer Consumer [Member] Consumer Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Cash and Cash Equivalents: Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation [Abstract] Entity Address, State or Province Entity Address, State or Province Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Change in foreign currency translation Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax, Portion Attributable to Parent PEO Total Compensation Amount PEO Total Compensation Amount Common stock, par value (in dollars per shares) Common Stock, Par or Stated Value Per Share Reportable Segment Reportable Segment [Member] Reportable Segment Beginning of period, nonvested (in shares) Ending of period, nonvested (in shares) Restricted stock units outstanding (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number Accrued expenses and other current liabilities Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Other Comprehensive Income (Loss): Other Comprehensive 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Disclosure [Text Block] Vested (in shares) Vested (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Class of Stock [Axis] Class of Stock [Axis] Intangible assets—net Intangible Asset, Finite-Lived, after Accumulated Amortization Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Net income attributable to common stockholders—basic Net Income (Loss) Available to Common Stockholders, Basic Other Observable Inputs (Level 2) Fair Value, Inputs, Level 2 [Member] Other income, net: Nonoperating Income (Expense) [Abstract] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Accrued expenses and other current liabilities including unbilled accounts payable Unbilled Accounts Payable, Current Unbilled Accounts Payable, Current Other comprehensive (loss) income Other Comprehensive Income (Loss), Net of Tax Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Issuances of Class A common stock pursuant to settlements of restricted stock units (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Gross Share-based compensation capitalized Share-Based Payment Arrangement, Amount Capitalized Recently Adopted Accounting Pronouncement New Accounting Pronouncements, Policy [Policy Text Block] Schedule of Segment Reporting Segment Reporting [Table Text Block] Related and Nonrelated Parties [Axis] Related and Nonrelated Parties [Axis] Supplemental Disclosures of Non-Cash Investing and Financing Activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Document Period End Date Document Period End Date Changes in operating assets and liabilities, net of business combinations: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Cancelled/forfeited (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures and Expirations in Period 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] Preferred stock, outstanding (in shares) Preferred Stock, Shares Outstanding Stockholders' Equity Equity [Text Block] Security Exchange Name Security Exchange Name Capitalized internally developed software costs Share-Based Payment Arrangement, Capitalized Internally Developed Software Costs Share-Based Payment Arrangement, Capitalized Internally Developed Software Costs Granted (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Fair value of shares vested under RSUs during period Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Common Class B Common Class B [Member] Accrued expenses and other current liabilities including operating lease liabilities Operating Lease, Liability, Current Statement of Comprehensive Income [Abstract] Net Income per Basic and Diluted Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Net Income per Share Attributable to Common Stockholders 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] Total liabilities Liabilities Trading Symbol Trading Symbol Purchases of property and equipment 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] Numerator: Numerator [Abstract] Numerator Company Selected Measure Name Company Selected Measure Name Income Tax Disclosure [Abstract] Increase in shares reserved for issuance (in shares) Common Stock, Capital Shares Reserved for Future Issuance, Increase Common Stock, Capital Shares Reserved for Future Issuance, Increase Credit Facility [Domain] Credit Facility [Domain] Operating Activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Business combination, voting equity interest acquired, percentage Business Combination, Voting Equity Interest Acquired, Percentage Diluted (in shares) Weighted-average shares of common stock — diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Significant Consolidated Balance Sheet Components [Abstract] Significant Consolidated Balance Sheet Components Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Deferred taxes Deferred Income Taxes and Tax Credits Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] SMB SMB Products [Member] SMB Products Revenue from Contract with Customer [Abstract] Cash paid for amounts included in the measurement of lease liabilities Operating Lease, Payments Award Timing Predetermined Award Timing Predetermined [Flag] Aggregate intrinsic value, options exercised in period Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Stock-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Quoted Prices in Active Markets (Level 1) Fair Value, Inputs, Level 1 [Member] Software, Internally Developed Software, Internally Developed [Member] Repurchases of Class A common stock recorded in accrued expenses and other current liabilities Repurchases Of Common Stock Incurred But Not Yet Paid Repurchases Of Common Stock Incurred But Not Yet Paid Organization, Consolidation and Presentation of Financial Statements [Abstract] Effect of dilutive RSUs, stock options and ESPP shares (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Beginning of period, nonvested weighted average grant date fair value (in dollars per share) Ending of period, nonvested weighted average grant date fair value (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value All Executive Categories All Executive Categories [Member] Repurchases of Class A common stock Repurchase of Class A common stock Stock Repurchased and Retired During Period, Value Operating lease liabilities Increase (Decrease) in Operating Lease Liability Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Preferred stock, par value (in dollars per shares) Preferred Stock, Par or Stated Value Per Share Plan Name [Domain] Plan Name [Domain] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Beginning of period (in dollars per share) End of period (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Sales and marketing Total Sales and Marketing Selling and Marketing Expense Right-of-use assets Operating Lease, Right-of-Use Asset Schedule of Net Income Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Fair Value Disclosures [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Expiration Date Trading Arrangement Expiration Date Schedule of Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement Location [Axis] Location, Statement of Income, Balance [Axis] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Cash and cash equivalents—money market funds/Certificate of deposit Cash and Cash Equivalents, Fair Value Disclosure Weighted-Average Remaining Contractual Life (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted-Average Remaining Contractual Term 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] Share repurchase program, additional amount authorized Share Repurchase Program, Additional Amount Authorized Share Repurchase Program, Additional Amount Authorized Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Common stock, authorized (in shares) Common Stock, Shares Authorized Weighted-average Shares Used in Computing Net Income per Share Attributable to Common Stockholders Net income per share attributable to common stockholders: Earnings Per Share Reconciliation [Abstract] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Security, Excluded EPS Calculation [Table] Estimated useful life Intangible Asset, Finite-Lived, Useful Life Aggregate intrinsic value, Vested and exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Aggregate Intrinsic Value Exercise Price Award Exercise Price Investing Activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Related Party Transaction [Axis] Related Party Transaction [Axis] Segment Reporting [Line Items] Segment Reporting [Line Items] 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] Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] 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 Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] Total costs and expenses Costs and Expenses Adoption Date Trading Arrangement Adoption Date Payments to acquire equity method investments Payments to Acquire Equity Method Investments Total stockholders’ equity Beginning balance Ending balance Equity, Attributable to Parent Total other income, net Nonoperating Income (Expense) 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] Risk-free interest rate Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Insider Trading Policies and Procedures [Line Items] Beginning of period (in shares) End of period (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Schedule of Outstanding Nonvested RSUs Schedule of Nonvested Share Activity [Table Text Block] Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Income tax refunds Proceeds from Income Tax Refunds Capitalized costs during period Property, Plant, and Equipment, before Accumulated Depreciation, Addition Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Significant Condensed Consolidated Balance Sheet Components Supplemental Balance Sheet Disclosures [Text Block] Business Combination [Domain] Business Combination [Domain] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Effect of antidilutive common stock equivalents (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Number of operating segments Number of Operating Segments Restricted Stock Units (RSUs) Restricted Stock Units (RSUs) [Member] Schedule of Antidilutive Securities Excluded from Computation of Diluted Net Income Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] CIK Entity Central Index Key All Adjustments to Compensation All Adjustments to Compensation [Member] Business Combination [Axis] Business Combination [Axis] 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] Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Income Statement [Abstract] Stockholders’ equity: Equity, Attributable to Parent [Abstract] Issuances of Class A common stock under Employee Stock Purchase Plan (in shares) Stock Issued During Period, Shares, Employee Stock Purchase Plans Document Transition Report Document Transition Report Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Costs and Expenses: Operating Expenses [Abstract] Deferred tax asset—noncurrent Deferred Income Tax Assets, Net Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Schedule of Weighted-Average Assumptions and Ranges of Fair Value of Common Stock Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Award vesting period, cliff Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Period, Cliff Share-Based Compensation Arrangement By Share-Based Payment Award, Award Vesting Period, Cliff Outstanding Stock Options (in thousands) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] City Area Code City Area Code Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Document Information [Table] Document Information [Table] All Individuals All Individuals [Member] Non-cash lease costs Operating Lease, Right-of-Use Asset, Periodic Reduction Name Forgone Recovery, Individual Name Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Weighted-Average Grant-Date Fair Value Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Statement [Line Items] Statement [Line Items] Total Assets Assets Preferred stock, issued (in shares) Preferred Stock, Shares Issued Granted, weighted average grant-date fair value (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Interest expense Interest Expense, Nonoperating Schedule of Stock-based Compensation Expense Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Mortgage loans held for sale Loan, Mortgage, Held-for-Sale, Fair Value Disclosure Equity investments without readily determinable fair values Equity Securities without Readily Determinable Fair Value, Amount Issuances of Class A common stock under Employee Stock Purchase Plan Proceeds, Issuance of Shares, Share-Based Payment Arrangement, Excluding Option Exercised Fair value of liabilities assumed Business Combination, Recognized Liability Assumed, Liability Issuances of Class A common stock under Employee Stock Purchase Plan Stock Issued During Period, Value, Employee Stock Purchase Plan Amount due to vendor Accounts Payable and Other Accrued Liabilities, Current PEO PEO [Member] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Performance marketing Performance Marketing [Member] Performance Marketing Share-based compensation expense Total Stock-based Compensation Share-Based Payment Arrangement, Expense 2021 Equity Incentive Plan Two Thousand Twenty One Equity Incentive Plan [Member] Two Thousand Twenty One Equity Incentive Plan Repurchases of Class A common stock (in shares) Repurchase of Class A common stock (in shares) Stock Repurchased and Retired During Period, Shares Other liabilities—noncurrent Other Liabilities, Noncurrent Goodwill Goodwill Number of additional shares authorized (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Issuances of Class A common stock upon exercises of stock options (in shares) Exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Accounts payable, current Business Combination, Recognized Liability Assumed, Accounts Payable, Current Other liabilities noncurrent including operating lease liabilities Operating Lease, Liability, Noncurrent Accumulated Deficit Retained Earnings [Member] Revolving Credit Facility Revolving Credit Facility [Member] Money Market Funds Money Market Funds [Member] Forfeited (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Cash and cash equivalents acquired Business Combination, Recognized Asset Acquired, Cash and Cash Equivalent Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Common stock, outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Diluted (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 Total Shareholder Return Amount Total Shareholder Return Amount Class A common stock withheld related to net share settlements of restricted stock units Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation Prepaid expenses and other assets Increase (Decrease) in Prepaid Expense and Other Assets Research and development Research and Development Expense Adjustments to reconcile net income to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Fair value of assets acquired totaled Business Combination, Recognized Asset Acquired, Asset Financing Activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Revenue Total Revenue Revenue from Contract with Customer, Excluding Assessed Tax Property, equipment and software—net Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Warehouse line of credit Line of Credit, Current Liquidation of certificate of deposit Proceeds From Liquidation Of Certificates Of Deposit Proceeds From Liquidation Of Certificates Of Deposit Stock-based compensation Share-Based Payment Arrangement, Expensed and Capitalized, Amount Vested and exercisable (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Number Intangible Asset, Finite-Lived, Class [Axis] Intangible Asset, Finite-Lived, Class [Axis] Issuances of Class A common stock upon exercises of stock options Stock Issued During Period, Value, Stock Options Exercised Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Underlying Securities Award Underlying Securities Amount Revenue Revenue from Contract with Customer [Text Block] Cancelled/forfeited (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Vested and exercisable (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted Average Exercise Price Share repurchase program, excise taxes Share Repurchase Program, Excise Tax Segment Reporting [Table] Segment Reporting [Table] Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [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] Income from Operations Income from Operations Operating Income (Loss) Current Fiscal Year End Date Current Fiscal Year End Date Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Related Party Transaction [Domain] Related Party Transaction [Domain] Business Combination Business Combination [Text Block] 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] Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Weighted-Average Exercise Price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Common stock, issued (in shares) Common Stock, Shares, Issued Measure: Measure [Axis] Equity Components [Axis] Equity Components [Axis] Accounts receivable Increase (Decrease) in Accounts Receivable Product and Service [Domain] Product and Service [Domain] Related Party Related Party [Member] Class of Stock [Line Items] Class of Stock [Line Items] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Common Class A Class A Common Stock Common Class A [Member] Entity Interactive Data Current Entity Interactive Data Current Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Entity Small Business Entity Small Business Comprehensive Income Comprehensive Income (Loss), Net of Tax, Attributable to Parent Termination Date Trading Arrangement Termination Date Class A common stock withheld related to net share settlements of restricted stock units (in shares) Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation Property, Plant, and Equipment [Line Items] Property, Plant, and Equipment [Line Items] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Intangible asset acquired Business Combination, Recognized Asset Acquired, Identifiable Intangible Asset, Finite-Lived 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] College Finance Company, LLC College Finance Company, LLC [Member] College Finance Company, LLC Other assets Other Assets, Noncurrent Document Type Document Type Business combinations, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired 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] Other marketing Other Marketing [Member] Other Marketing 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 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 The Company and Basis of Presentation Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Income before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Commitments and contingencies (Note 6) Commitments and Contingencies Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] Performance marketing Performance Marketing Expense Performance Marketing Expense Award vesting period in years Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Liabilities and Stockholders’ Equity Liabilities and Equity [Abstract] Intangible Asset, Finite-Lived, Class [Domain] Intangible Asset, Finite-Lived, Class [Domain] Trade Names Trade Names [Member] Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Award Type [Domain] Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Fair Value Measurements Fair Value Disclosures [Text Block] Significant Unobservable Inputs (Level 3) Fair Value, Inputs, Level 3 [Member] Supplemental Disclosures of Cash Flow Information: Supplemental Cash Flow Information [Abstract] Expected term (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Weighted-Average Remaining Contractual Life, Vested and exercisable (in years) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Exercisable, Weighted-Average Remaining Contractual Term PEO Name PEO Name Accrued expenses and other current liabilities Accrued Liabilities and Other Liabilities Income tax payments Income Tax Paid, before Refund Received Long-Lived Asset, Class [Axis] Long-Lived Asset, Class [Axis] Other segment costs and expenses Segment Reporting, Other Segment Item, Amount Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Shares subject to outstanding stock options and RSUs Share Based Payment Arrangement, Options And Restricted Stock Units [Member] Share Based Payment Arrangement, Options And Restricted Stock Units Exercised (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Beginning of period End of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Warehouse Line Of Credit Warehouse Line Of Credit [Member] Warehouse Line Of Credit Accounts payable Increase (Decrease) in Accounts Payable Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code 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] Debt Instrument [Axis] Debt Instrument [Axis] Stock-based compensation Share-Based Payment Arrangement, Noncash Expense Employee Stock ESPP Employee Stock [Member] Total expenses Related Party Transaction, Amounts of Transaction Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Basic (in dollars per share) Earnings Per Share, Basic Repurchases of Class A common stock Payments for Repurchase of Common Stock Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Cost of revenue Cost of Revenue Award Type [Axis] Award Type [Axis] Capitalized software development costs recorded in accounts payable and accrued expenses and other current liabilities Capitalized Software Development Costs Incurred But Not Yet Paid Capitalized Software Development Costs Incurred But Not Yet Paid Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Accumulated deficit Retained Earnings (Accumulated Deficit) Product 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