00000 - Document - Template Link link:presentationLink link:calculationLink link:definitionLink 100000 - Document - Document and Entity Information link:calculationLink link:presentationLink link:definitionLink 100010 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) link:calculationLink link:presentationLink link:definitionLink 100020 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) link:calculationLink link:presentationLink link:definitionLink 100030 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) (Unaudited) link:calculationLink link:presentationLink link:definitionLink 100040 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED UNITS AND EQUITY link:calculationLink link:presentationLink link:definitionLink 100050 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (unaudited) link:calculationLink link:presentationLink link:definitionLink 100060 - Disclosure - Nature of Operations link:calculationLink link:presentationLink link:definitionLink 100070 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies link:calculationLink link:presentationLink link:definitionLink 100080 - Disclosure - Revenue link:calculationLink link:presentationLink link:definitionLink 100090 - Disclosure - Property, Equipment and Software, Net link:calculationLink link:presentationLink link:definitionLink 100100 - Disclosure - Leases link:calculationLink link:presentationLink link:definitionLink 100110 - Disclosure - Intangible Assets, Net link:calculationLink link:presentationLink link:definitionLink 100120 - Disclosure - Accrued Liabilities link:calculationLink link:presentationLink link:definitionLink 100130 - Disclosure - Revolving Credit Facility and PPP Loan link:calculationLink link:presentationLink link:definitionLink 100140 - Disclosure - Stock-Based Compensation link:calculationLink link:presentationLink link:definitionLink 100150 - Disclosure - Income Taxes and Tax Receivable Agreement link:calculationLink link:presentationLink link:definitionLink 100160 - Disclosure - Loss Per Share link:calculationLink link:presentationLink link:definitionLink 100170 - Disclosure - Noncontrolling Interests link:calculationLink link:presentationLink link:definitionLink 100180 - Disclosure - Commitments and Contingencies link:calculationLink link:presentationLink link:definitionLink 100190 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Policies) link:calculationLink link:presentationLink link:definitionLink 100200 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies (Tables) link:calculationLink link:presentationLink link:definitionLink 100210 - Disclosure - Revenue (Tables) link:calculationLink link:presentationLink link:definitionLink 100220 - Disclosure - Property, Equipment and Software, Net (Tables) link:calculationLink link:presentationLink link:definitionLink 100230 - Disclosure - Leases (Tables) link:calculationLink link:presentationLink link:definitionLink 100240 - Disclosure - Intangible Assets, Net (Tables) link:calculationLink link:presentationLink link:definitionLink 100250 - Disclosure - Accrued Liabilities (Tables) link:calculationLink link:presentationLink link:definitionLink 100260 - Disclosure - Stock-Based Compensation (Tables) link:calculationLink link:presentationLink link:definitionLink 100270 - Disclosure - Loss Per Share (Tables) link:calculationLink link:presentationLink link:definitionLink 100280 - Disclosure - Noncontrolling Interests (Tables) link:calculationLink link:presentationLink link:definitionLink 100290 - Disclosure - Nature of Operations - Additional Information (Details) link:calculationLink link:presentationLink link:definitionLink 100300 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies - Summary of Changes in Allowance for Doubtful Accounts (Details) link:calculationLink link:presentationLink link:definitionLink 100310 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies - Additional Information (Details) link:calculationLink link:presentationLink link:definitionLink 100320 - Disclosure - Basis of Presentation and Summary of Significant Accounting Policies - Schedule of Concentrations of Credit Risk (Details) link:calculationLink link:presentationLink link:definitionLink 100330 - Disclosure - Revenue - Summary of Disaggregation of Revenue (Details) link:calculationLink link:presentationLink link:definitionLink 100340 - Disclosure - Revenue - Additional Information (Details) link:calculationLink link:presentationLink link:definitionLink 100350 - Disclosure - Property, Equipment and Software, Net - Schedule of Major Classes of Property, Equipment and Software (Details) link:calculationLink link:presentationLink link:definitionLink 100360 - Disclosure - Property, Equipment and Software, Net - Schedule of Depreciation (Details) link:calculationLink link:presentationLink link:definitionLink 100370 - Disclosure - Property, Equipment and Software, Net - Additional Information (Details) link:calculationLink link:presentationLink link:definitionLink 100380 - Disclosure - Leases - Additional Information (Details) link:calculationLink link:presentationLink link:definitionLink 100390 - Disclosure - Leases - Components of Lease Expense (Details) link:calculationLink link:presentationLink link:definitionLink 100400 - Disclosure - Leases - Summary of Future Minimum Lease Payments (Details) link:calculationLink link:presentationLink link:definitionLink 100410 - Disclosure - Leases - Summary of Future Minimum Lease Payments (Details)2 link:calculationLink link:presentationLink link:definitionLink 100420 - Disclosure - Leases - Summary of Future Minimum Payments Under Non-Cancelable Operating Leases (Details) link:calculationLink link:presentationLink link:definitionLink 100430 - Disclosure - Intangible Assets, Net - Summary of Balances of Intangibles Assets and Accumulated Amortization (Details) link:calculationLink link:presentationLink link:definitionLink 100440 - Disclosure - Intangible Assets, Net - Summary of Amortization of Intangible Assets Recorded in Consolidated Statements of Operations (Details) link:calculationLink link:presentationLink link:definitionLink 100450 - Disclosure - Intangible Assets, Net - Summary of Estimated Future Amortization of Intangible Assets (Details) link:calculationLink link:presentationLink link:definitionLink 100460 - Disclosure - Accrued Liabilities - Summary of Accrued Liabilities (Details) link:calculationLink link:presentationLink link:definitionLink 100470 - Disclosure - Accrued Liabilities - Additional Information (Details) link:calculationLink link:presentationLink link:definitionLink 100480 - Disclosure - Revolving Credit Facility and PPP Loan - Additional Information (Details) link:calculationLink link:presentationLink link:definitionLink 100490 - Disclosure - Stock-Based Compensation - Additional Information (Details) link:calculationLink link:presentationLink link:definitionLink 100500 - Disclosure - Stock-Based Compensation - Summary of Stock-based Compensation (Details) link:calculationLink link:presentationLink link:definitionLink 100510 - Disclosure - Stock-Based Compensation - Summary of RSU Activity (Details) link:calculationLink link:presentationLink link:definitionLink 100520 - Disclosure - Stock-Based Compensation - Summary of Nonqualified Stock Option Activity (Details) link:calculationLink link:presentationLink link:definitionLink 100530 - Disclosure - Stock-Based Compensation - Summary of Assumptions used in Black-Scholes Model to Determine Fair Value of Nonqualified Stock Options Granted (Details) link:calculationLink link:presentationLink link:definitionLink 100540 - Disclosure - Income Taxes and Tax Receivable Agreement - Additional Information (Details) link:calculationLink link:presentationLink link:definitionLink 100550 - Disclosure - Loss Per Share - Calculation of Basic and Diluted Net Loss Per Share (Details) link:calculationLink link:presentationLink link:definitionLink 100560 - Disclosure - Noncontrolling Interests - Additional Information (Details) link:calculationLink link:presentationLink link:definitionLink 100570 - Disclosure - Noncontrolling Interests - Summary Ownership of Viant Technology LLC (Details) link:calculationLink link:presentationLink link:definitionLink 100580 - Disclosure - Noncontrolling Interests - Summary of Effect of Changes in Ownership Interest in Viant Technology LLC on Equity (Details) link:calculationLink link:presentationLink link:definitionLink 100590 - Disclosure - Commitments and Contingencies - Additional Information (Details) link:calculationLink link:presentationLink link:definitionLink