0000001 - Document - COVER PAGE link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS’ EQUITY link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952156 - Disclosure - Overview link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - Disposals link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Investments link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Leases link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - Property and Equipment, Net link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Share-Based Compensation link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Accrued Expenses and Other Current Liabilities link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Net Loss Per Share link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Subsequent Events 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 - Investments (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - Property and Equipment, Net (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - Accrued Expenses and Other Current Liabilities (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - Net Loss Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - Disposals (Details) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - Summary of Significant Accounting Policies - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - Summary of Significant Accounting Policies - Schedule of Significant Expense Categories (Details) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - Summary of Significant Accounting Policies - Schedule of Restricted Cash and Cash Equivalents (Details) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - Summary of Significant Accounting Policies - Schedule of Significant Customers (Details) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - Investments - Schedule of Amortized Cost, Unrealized Gains and Losses, and Fair Value (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - Investments - Schedule of Investment Maturity (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - Fair Value Measurements (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - Leases (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - Property and Equipment, Net (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - Share-Based Compensation (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - Accrued Expenses and Other Current Liabilities - (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - Commitments and Contingencies (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - Net Loss Per Share - Schedule of Basic and Diluted Net Loss Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - Net Loss Per Share - Schedule of Weighted Average Potential Common Shares Excluded (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - Subsequent Events (Details) link:presentationLink link:calculationLink link:definitionLink