0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 0000002 - Document - Audit Information link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 9952157 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - Nature of Business link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Sales of Subsidiary Business link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Investment Securities and Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Property and Equipment, net link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Capitalized Software Development Costs, net link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Business Combination link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Goodwill and Intangible Assets, Net link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Accrued Employee Expenses link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Other Current Liabilities link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Leases link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Stockholders' Equity link:presentationLink link:calculationLink link:definitionLink 9952171 - Disclosure - Stock-Based Compensation link:presentationLink link:calculationLink link:definitionLink 9952172 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 9952173 - Disclosure - Revenue and Other Information link:presentationLink link:calculationLink link:definitionLink 9952174 - Disclosure - Workforce Reduction link:presentationLink link:calculationLink link:definitionLink 9952175 - Disclosure - Retirement Plans link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Summary of Significant Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Investment Securities and Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Property and Equipment, net (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Capitalized Software Development Costs, net (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Business Combination (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Goodwill and Intangible Assets, Net (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Accrued Employee Expenses (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Other Current Liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Leases (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Stock-Based Compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Revenue and Other Information (Tables) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Workforce Reduction (Tables) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Summary of Significant Accounting Policies - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Summary of Significant Accounting Policies - Schedule of Estimated Useful Lives of Property and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Summary of Significant Accounting Policies - Schedule of Computation of Basic and Diluted Net Income (Loss) Per Common Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Summary of Significant Accounting Policies - Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Sales of Subsidiary Business (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Investment Securities and Fair Value Measurements - Schedule of Investment Securities Available-for-Sale (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Investment Securities and Fair Value Measurements - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Investment Securities and Fair Value Measurements - Schedule of Fair Values of Available-for-Sale Investment Securities, by Remaining Contractual Maturity (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Investment Securities and Fair Value Measurements - Schedule of Sales and Maturities of Investment Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Investment Securities and Fair Value Measurements - Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Property and Equipment, net - Schedule of Property and Equipment, Net (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Property and Equipment, net - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Capitalized Software Development Costs, net - Schedule of Capitalized Software Development Costs, Net (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Capitalized Software Development Costs, net - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Capitalized Software Development Costs, net - Schedule of Future Amortization Expense of Capitalized Software Development Costs (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Business Combination - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Business Combination - Schedule of Purchase Price Allocation (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Goodwill and Intangible Assets, Net - Schedule of Intangible Assets, Net (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Goodwill and Intangible Assets, Net - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Goodwill and Intangible Assets, Net - Scheduled of Future Amortization Expense of Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Goodwill and Intangible Assets, Net - Schedule of Change in the Carrying Amount of Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Accrued Employee Expenses - Schedule of Accrued Employee Expenses (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Accrued Employee Expenses - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Other Current Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Leases - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Leases - Schedule of Components of Lease Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Leases - Schedule of Lease-Related Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Leases - Schedule of Future Minimum Lease Payments Under Non-Cancellable Leases (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Leases - Schedule of Future Minimum Lease Payments Under Non-Cancellable Leases (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Commitments and Contingencies (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - Stockholders' Equity - Amended and Restated Certificate of Incorporation (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Stockholders' Equity - Class A Common Stock and Class B Common Stock (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955556 - Disclosure - Stockholders' Equity - Preferred Stock (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955557 - Disclosure - Stockholders' Equity - Share Repurchase Program (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955558 - Disclosure - Stock-Based Compensation - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955559 - Disclosure - Stock-Based Compensation - Stock Options (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955560 - Disclosure - Stock-Based Compensation - Schedule of Stock Option Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955561 - Disclosure - Stock-Based Compensation - Schedule of Information Related to Stock Options Granted (Details) link:presentationLink link:calculationLink link:definitionLink 9955562 - Disclosure - Stock-Based Compensation - Schedule of Restricted Stock Units Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9955563 - Disclosure - Stock-Based Compensation - Restricted Stock Units (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9955564 - Disclosure - Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) link:presentationLink link:calculationLink link:definitionLink 9955565 - Disclosure - Income Taxes - Schedule of (Benefit From) Provision for Income Tax (Details) link:presentationLink link:calculationLink link:definitionLink 9955566 - Disclosure - Income Taxes - Schedule of Components of Deferred Tax Assets (Liabilities) (Details) link:presentationLink link:calculationLink link:definitionLink 9955567 - Disclosure - Income Taxes - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955568 - Disclosure - Income Taxes - Schedule of Change in the Valuation Allowance (Details) link:presentationLink link:calculationLink link:definitionLink 9955569 - Disclosure - Income Taxes - Schedule of Unrecognized Tax Benefits from Uncertain Tax Positions (Details) link:presentationLink link:calculationLink link:definitionLink 9955570 - Disclosure - Revenue and Other Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955571 - Disclosure - Workforce Reduction - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955572 - Disclosure - Workforce Reduction - Schedule of Total Severance and Related Personnel Costs by Function (Details) link:presentationLink link:calculationLink link:definitionLink 9955573 - Disclosure - Workforce Reduction - Schedule of Changes in the Accrued Severance and Related Personnel Cost (Details) link:presentationLink link:calculationLink link:definitionLink 9955574 - Disclosure - Retirement Plans (Details) link:presentationLink link:calculationLink link:definitionLink