0000001 - Document - Cover link:presentationLink link:calculationLink link:definitionLink 9952151 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 9952152 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS link:presentationLink link:calculationLink link:definitionLink 9952153 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF 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 CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 9952156 - Disclosure - ORGANIZATION, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 9952157 - Disclosure - FAIR VALUE MEASUREMENTS link:presentationLink link:calculationLink link:definitionLink 9952158 - Disclosure - CASH EQUIVALENTS link:presentationLink link:calculationLink link:definitionLink 9952159 - Disclosure - VENDOR PAYMENT ARRANGEMENT link:presentationLink link:calculationLink link:definitionLink 9952160 - Disclosure - BASIC AND DILUTED NET LOSS PER SHARE link:presentationLink link:calculationLink link:definitionLink 9952161 - Disclosure - MAJOR CUSTOMERS, PARTNERSHIPS AND STRATEGIC ALLIANCES link:presentationLink link:calculationLink link:definitionLink 9952162 - Disclosure - IMPAIRMENT OF LONG-LIVED ASSETS AND WRITE-DOWN OF ASSETS HELD FOR SALE link:presentationLink link:calculationLink link:definitionLink 9952163 - Disclosure - STOCK-BASED COMPENSATION link:presentationLink link:calculationLink link:definitionLink 9952164 - Disclosure - STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 9952165 - Disclosure - RESTRUCTURING CHARGES link:presentationLink link:calculationLink link:definitionLink 9952166 - Disclosure - SEGMENT INFORMATION link:presentationLink link:calculationLink link:definitionLink 9952167 - Disclosure - SUBSEQUENT EVENTS link:presentationLink link:calculationLink link:definitionLink 9955511 - Disclosure - ORGANIZATION, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies) link:presentationLink link:calculationLink link:definitionLink 9955512 - Disclosure - ORGANIZATION, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955513 - Disclosure - FAIR VALUE MEASUREMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 9955514 - Disclosure - CASH EQUIVALENTS - (Tables) link:presentationLink link:calculationLink link:definitionLink 9955515 - Disclosure - STOCK-BASED COMPENSATION (Tables) link:presentationLink link:calculationLink link:definitionLink 9955516 - Disclosure - RESTRUCTURING CHARGES (Tables) link:presentationLink link:calculationLink link:definitionLink 9955517 - Disclosure - SEGMENT INFORMATION (Tables) link:presentationLink link:calculationLink link:definitionLink 9955518 - Disclosure - ORGANIZATION, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955519 - Disclosure - ORGANIZATION, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Revenues from Strategic Partnering Collaboration And Licensing Agreements (Details) link:presentationLink link:calculationLink link:definitionLink 9955520 - Disclosure - ORGANIZATION, BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Reconciliation of Cash and Cash Equivalents (Details) link:presentationLink link:calculationLink link:definitionLink 9955521 - Disclosure - FAIR VALUE MEASUREMENTS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955522 - Disclosure - FAIR VALUE MEASUREMENTS - Schedule of Fair Value Measurements of Cash Equivalents (Details) link:presentationLink link:calculationLink link:definitionLink 9955523 - Disclosure - CASH EQUIVALENTS - Schedule of Cash Equivalents and Available-for-Sale Securities (Details) link:presentationLink link:calculationLink link:definitionLink 9955524 - Disclosure - VENDOR PAYMENT ARRANGEMENT (Details) link:presentationLink link:calculationLink link:definitionLink 9955525 - Disclosure - BASIC AND DILUTED NET LOSS PER SHARE (Details) link:presentationLink link:calculationLink link:definitionLink 9955526 - Disclosure - MAJOR CUSTOMERS, PARTNERS AND STRATEGIC ALLIANCES - Eli Lilly and Company (Details) link:presentationLink link:calculationLink link:definitionLink 9955527 - Disclosure - MAJOR CUSTOMERS, PARTNERSHIPS AND STRATEGIC ALLIANCES - Astellas Gene Therapies, Inc. (Details) link:presentationLink link:calculationLink link:definitionLink 9955528 - Disclosure - MAJOR CUSTOMERS, PARTNERSHIPS AND STRATEGIC ALLIANCES - Genentech, Inc. (Details) link:presentationLink link:calculationLink link:definitionLink 9955529 - Disclosure - MAJOR CUSTOMERS, PARTNERSHIPS AND STRATEGIC ALLIANCES - Pfizer Inc. (Details) link:presentationLink link:calculationLink link:definitionLink 9955530 - Disclosure - MAJOR CUSTOMERS, PARTNERSHIPS AND STRATEGIC ALLIANCES - Alexion Pharmaceuticals, Inc., AstraZeneca Rare Disease (Details) link:presentationLink link:calculationLink link:definitionLink 9955531 - Disclosure - IMPAIRMENT OF LONG-LIVED ASSETS AND WRITE-DOWN OF ASSETS HELD FOR SALE (Details) link:presentationLink link:calculationLink link:definitionLink 9955532 - Disclosure - STOCK-BASED COMPENSATION (Details) link:presentationLink link:calculationLink link:definitionLink 9955533 - Disclosure - STOCKHOLDERS' EQUITY (Details) link:presentationLink link:calculationLink link:definitionLink 9955534 - Disclosure - RESTRUCTURING CHARGES - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9955535 - Disclosure - RESTRUCTURING CHARGES - Accrued Restructuring Costs (Details) link:presentationLink link:calculationLink link:definitionLink 9955536 - Disclosure - SEGMENT INFORMATION - Schedule of Segment Reporting Information, by Segment (Details) link:presentationLink link:calculationLink link:definitionLink 9955537 - Disclosure - SUBSEQUENT EVENTS (Details) link:presentationLink link:calculationLink link:definitionLink