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 and Comprehensive Loss link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Consolidated Statements of Mezzanine and Stockholders’ Equity link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 9952156 - Disclosure - Business link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - Asset Acquisition link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Revenue link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Net Loss Per Share link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Investments link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Property and Equipment and Leases link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Goodwill link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Accrued Expenses and Other Current Liabilities link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Capital Structure link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Stock Based Compensation link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 9952169 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 9952170 - Disclosure - Segments link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - Asset Acquisition (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - Net Loss Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Investments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Property and Equipment and Leases (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Accrued Expenses and Other Current Liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Capital Structure (Tables) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Stock Based Compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Income Taxes (Tables) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Segments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Business (Details) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Significant Accounting Policies (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Asset Acquisition - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Asset Acquisition - Schedule of Total Consideration, Assets and the Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Net Loss Per Share - Computation of Basic and Diluted Net Loss Per Share of Common Stock for Continuing and Discontinued Operations (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Net Loss Per Share - Anti-dilutive Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Net Loss Per Share - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Fair Value Measurements - Schedule of Assets and Liabilities That Are Measured at Fair Value on a Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Fair Value Measurements - Schedule of Changes in the Fair Value (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Fair Value Measurements - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Investments - Schedule of Cash Equivalents and Short-term Investments Classified as Available-for-sale (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - Investments - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - Property and Equipment and Leases- Summary of Property and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - Property and Equipment and Leases - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - Property and Equipment and Leases - Supplemental Balance Sheet Information (Details) link:presentationLink link:calculationLink link:definitionLink 9955538 - Disclosure - Property and Equipment and Leases - Lease Cost (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Property and Equipment and Leases - Lease Maturity (Details) link:presentationLink link:calculationLink link:definitionLink 9955539 - Disclosure - Property and Equipment and Leases - Lease Maturity (Details) link:presentationLink link:calculationLink link:definitionLink 9955540 - Disclosure - Goodwill - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955541 - Disclosure - Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses and Other Current Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9955542 - Disclosure - Capital Structure - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955543 - Disclosure - Capital Structure - Common Stock Warrants (Details) link:presentationLink link:calculationLink link:definitionLink 9955544 - Disclosure - Stock Based Compensation - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955545 - Disclosure - Stock Based Compensation - Stock-based Compensation Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9955546 - Disclosure - Stock Based Compensation - Stock Options With Service-based Vesting Conditions (Details) link:presentationLink link:calculationLink link:definitionLink 9955547 - Disclosure - Stock Based Compensation - Stock-based Compensation Assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 9955548 - Disclosure - Stock Based Compensation - Restricted Stock Units (Details) link:presentationLink link:calculationLink link:definitionLink 9955549 - Disclosure - Income Taxes - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955550 - Disclosure - Income Taxes - Schedule of Income Tax Provision (Details) link:presentationLink link:calculationLink link:definitionLink 9955551 - Disclosure - Income Taxes - Schedule of Deferred Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9955552 - Disclosure - Income Taxes - Income Tax Rate Reconciliation (Details) link:presentationLink link:calculationLink link:definitionLink 9955553 - Disclosure - Commitments and Contingencies (Details) link:presentationLink link:calculationLink link:definitionLink 9955554 - Disclosure - Segments - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955555 - Disclosure - Segments (Details) link:presentationLink link:calculationLink link:definitionLink