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 - Condensed Consolidated Statements of Operations and Comprehensive Loss link:presentationLink link:calculationLink link:definitionLink 9952154 - Statement - Condensed Consolidated Statements of Stockholders’ Equity link:presentationLink link:calculationLink link:definitionLink 9952155 - Statement - Condensed Consolidated Statements of Stockholders’ Equity (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 9952156 - Statement - Condensed Consolidated Statements of Cash Flows link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - Description of Business link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - Financial Instruments link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - Balance Sheet Components link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - License and Collaboration Agreements link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - Equity Investments and Equity Method Investments link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - Stock-Based Compensation link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - Related Party Transactions link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - Income Taxes link:presentationLink link:calculationLink link:definitionLink 9952168 - Disclosure - Net Loss Per Share link:presentationLink link:calculationLink link:definitionLink 9954471 - Disclosure - Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9954472 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 9954473 - Disclosure - Financial Instruments (Tables) link:presentationLink link:calculationLink link:definitionLink 9954474 - Disclosure - Balance Sheet Components (Tables) link:presentationLink link:calculationLink link:definitionLink 9954475 - Disclosure - Commitments and Contingencies (Tables) link:presentationLink link:calculationLink link:definitionLink 9954476 - Disclosure - Stock-Based Compensation (Tables) link:presentationLink link:calculationLink link:definitionLink 9954477 - Disclosure - Net Loss Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 9954478 - Disclosure - Description of Business (Details) link:presentationLink link:calculationLink link:definitionLink 9954479 - Disclosure - Fair Value Measurements - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 9954480 - Disclosure - Fair Value Measurements - Financial Assets and Liabilities (Detail) link:presentationLink link:calculationLink link:definitionLink 9954481 - Disclosure - Financial Instruments - Cash Equivalents, Restricted Cash and Investments, Classified as Available-for-Sale Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9954482 - Disclosure - Financial Instruments - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9954483 - Disclosure - Balance Sheet Components - Schedule of Property and Equipment, Net (Details) link:presentationLink link:calculationLink link:definitionLink 9954484 - Disclosure - Balance Sheet Components - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9954485 - Disclosure - License and Collaboration Agreements - Pfizer (Details) link:presentationLink link:calculationLink link:definitionLink 9954486 - Disclosure - License and Collaboration Agreements - Cellectis (Details) link:presentationLink link:calculationLink link:definitionLink 9954487 - Disclosure - License and Collaboration Agreements - Servier (Details) link:presentationLink link:calculationLink link:definitionLink 9954488 - Disclosure - License and Collaboration Agreements - Notch Therapeutics (Details) link:presentationLink link:calculationLink link:definitionLink 9954489 - Disclosure - License and Collaboration Agreements - MD Anderson Cancer Center (Details) link:presentationLink link:calculationLink link:definitionLink 9954490 - Disclosure - License and Collaboration Agreements - Overland Therapeutics, Inc. (Details) link:presentationLink link:calculationLink link:definitionLink 9954491 - Disclosure - License and Collaboration Agreements - Antion (Details) link:presentationLink link:calculationLink link:definitionLink 9954492 - Disclosure - License and Collaboration Agreements - Foresight Diagnostics (Details) link:presentationLink link:calculationLink link:definitionLink 9954493 - Disclosure - Commitments and Contingencies - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9954494 - Disclosure - Commitments and Contingencies - Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9954495 - Disclosure - Commitments and Contingencies - Lease Costs (Details) link:presentationLink link:calculationLink link:definitionLink 9954496 - Disclosure - Commitments and Contingencies - Undiscounted Future Lease Payments (Details) link:presentationLink link:calculationLink link:definitionLink 9954497 - Disclosure - Equity Investments and Equity Method Investments (Details) link:presentationLink link:calculationLink link:definitionLink 9954498 - Disclosure - Stock-Based Compensation - Additional Information (Details) link:presentationLink link:calculationLink link:definitionLink 9954499 - Disclosure - Stock-Based Compensation - Stock Option Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9954500 - Disclosure - Stock-Based Compensation - Valuation Assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 9954501 - Disclosure - Stock-Based Compensation - Restricted Stock Units Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9954502 - Disclosure - Related Party Transactions (Details) link:presentationLink link:calculationLink link:definitionLink 9954503 - Disclosure - Net Loss Per Share (Details) link:presentationLink link:calculationLink link:definitionLink