0000001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 0000002 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 0000003 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS link:presentationLink link:calculationLink link:definitionLink 0000004 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 0000005 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS link:presentationLink link:calculationLink link:definitionLink 0000006 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 0000007 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 0000008 - Disclosure - THE COMPANY AND SIGNIFICANT ACCOUNTING POLICIES link:presentationLink link:calculationLink link:definitionLink 0000009 - Disclosure - REVENUE RECOGNITION link:presentationLink link:calculationLink link:definitionLink 0000010 - Disclosure - FAIR VALUE MEASUREMENTS link:presentationLink link:calculationLink link:definitionLink 0000011 - Disclosure - PROPERTY AND EQUIPMENT, NET link:presentationLink link:calculationLink link:definitionLink 0000012 - Disclosure - INTANGIBLE ASSETS AND GOODWILL link:presentationLink link:calculationLink link:definitionLink 0000013 - Disclosure - LEASES link:presentationLink link:calculationLink link:definitionLink 0000014 - Disclosure - COMMITMENTS AND CONTINGENCIES link:presentationLink link:calculationLink link:definitionLink 0000015 - Disclosure - CONVERTIBLE SENIOR NOTES, TERM LOAN AND CAPPED CALLS link:presentationLink link:calculationLink link:definitionLink 0000016 - Disclosure - STOCK-BASED COMPENSATION AND STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 0000017 - Disclosure - INCOME TAXES link:presentationLink link:calculationLink link:definitionLink 0000018 - Disclosure - NET LOSS PER SHARE link:presentationLink link:calculationLink link:definitionLink 0000019 - Disclosure - GEOGRAPHICAL INFORMATION link:presentationLink link:calculationLink link:definitionLink 0000020 - Disclosure - ACQUISITIONS link:presentationLink link:calculationLink link:definitionLink 0000021 - Disclosure - THE COMPANY AND SIGNIFICANT ACCOUNTING POLICIES (Policies) link:presentationLink link:calculationLink link:definitionLink 0000022 - Disclosure - REVENUE RECOGNITION (Tables) link:presentationLink link:calculationLink link:definitionLink 0000023 - Disclosure - FAIR VALUE MEASUREMENTS (Tables) link:presentationLink link:calculationLink link:definitionLink 0000024 - Disclosure - INTANGIBLE ASSETS AND GOODWILL (Tables) link:presentationLink link:calculationLink link:definitionLink 0000025 - Disclosure - LEASES (Tables) link:presentationLink link:calculationLink link:definitionLink 0000026 - Disclosure - CONVERTIBLE SENIOR NOTES, TERM LOAN AND CAPPED CALLS (Tables) link:presentationLink link:calculationLink link:definitionLink 0000027 - Disclosure - STOCK-BASED COMPENSATION AND STOCKHOLDERS' EQUITY (Tables) link:presentationLink link:calculationLink link:definitionLink 0000028 - Disclosure - NET LOSS PER SHARE (Tables) link:presentationLink link:calculationLink link:definitionLink 0000029 - Disclosure - GEOGRAPHICAL INFORMATION (Tables) link:presentationLink link:calculationLink link:definitionLink 0000030 - Disclosure - THE COMPANY AND SIGNIFICANT ACCOUNTING POLICIES (Details) link:presentationLink link:calculationLink link:definitionLink 0000031 - Disclosure - REVENUE RECOGNITION - Contract Balances (Details) link:presentationLink link:calculationLink link:definitionLink 0000032 - Disclosure - REVENUE RECOGNITION - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000033 - Disclosure - REVENUE RECOGNITION - Remaining Performance Obligation (Details) link:presentationLink link:calculationLink link:definitionLink 0000033 - Disclosure - REVENUE RECOGNITION - Remaining Performance Obligation (Details) link:presentationLink link:calculationLink link:definitionLink 0000034 - Disclosure - FAIR VALUE MEASUREMENTS - Cash, Cash Equivalents and Investments with Hierarchy (Details) link:presentationLink link:calculationLink link:definitionLink 0000034 - Disclosure - FAIR VALUE MEASUREMENTS - Cash, Cash Equivalents and Investments with Hierarchy (Details) link:presentationLink link:calculationLink link:definitionLink 0000035 - Disclosure - FAIR VALUE MEASUREMENTS - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000036 - Disclosure - FAIR VALUE MEASUREMENTS - Summary of Assumptions Used in Determination of Fair Value (Details) link:presentationLink link:calculationLink link:definitionLink 0000037 - Disclosure - PROPERTY AND EQUIPMENT, NET (Details) link:presentationLink link:calculationLink link:definitionLink 0000038 - Disclosure - INTANGIBLE ASSETS AND GOODWILL- Schedule Of Intangibles (Details) link:presentationLink link:calculationLink link:definitionLink 0000039 - Disclosure - INTANGIBLE ASSETS AND GOODWILL - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000040 - Disclosure - INTANGIBLE ASSETS AND GOODWILL - Schedule of Future Amortization of Intangibles (Details) link:presentationLink link:calculationLink link:definitionLink 0000041 - Disclosure - INTANGIBLE ASSETS AND GOODWILL - Changes in Carrying Amount of Goodwill by Location (Details) link:presentationLink link:calculationLink link:definitionLink 0000042 - Disclosure - LEASES - Components of Lease Right-of-Use Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 0000043 - Disclosure - LEASES - Operating Lease Expense (Details) link:presentationLink link:calculationLink link:definitionLink 0000044 - Disclosure - LEASES - Supplemental Information (Details) link:presentationLink link:calculationLink link:definitionLink 0000045 - Disclosure - LEASES - Maturity of Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 0000045 - Disclosure - LEASES - Maturity of Lease Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 0000046 - Disclosure - COMMITMENTS AND CONTINGENCIES (Details) link:presentationLink link:calculationLink link:definitionLink 0000047 - Disclosure - CONVERTIBLE SENIOR NOTES, TERM LOAN AND CAPPED CALLS - 2024 Notes and Capped Call (Details) link:presentationLink link:calculationLink link:definitionLink 0000048 - Disclosure - CONVERTIBLE SENIOR NOTES, TERM LOAN AND CAPPED CALLS - Term Loan and Warrants (Details) link:presentationLink link:calculationLink link:definitionLink 0000049 - Disclosure - CONVERTIBLE SENIOR NOTES, TERM LOAN AND CAPPED CALLS - Carrying Amount (Details) link:presentationLink link:calculationLink link:definitionLink 0000050 - Disclosure - CONVERTIBLE SENIOR NOTES, TERM LOAN AND CAPPED CALLS - Interest Expense (Details) link:presentationLink link:calculationLink link:definitionLink 0000051 - Disclosure - CONVERTIBLE SENIOR NOTES, TERM LOAN AND CAPPED CALLS - Exchange Transaction and 2028 Notes (Details) link:presentationLink link:calculationLink link:definitionLink 0000052 - Disclosure - STOCK-BASED COMPENSATION AND STOCKHOLDERS' EQUITY - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000053 - Disclosure - STOCK-BASED COMPENSATION AND STOCKHOLDERS' EQUITY - Stock-Based Compensation Expense By Statement Of Operations (Details) link:presentationLink link:calculationLink link:definitionLink 0000054 - Disclosure - STOCK-BASED COMPENSATION AND STOCKHOLDERS' EQUITY - Option Activity (Details) link:presentationLink link:calculationLink link:definitionLink 0000055 - Disclosure - STOCK-BASED COMPENSATION AND STOCKHOLDERS' EQUITY - Restricted Stock Unit and Performance Stock Unit Activity (Details) link:presentationLink link:calculationLink link:definitionLink 0000056 - Disclosure - INCOME TAXES (Details) link:presentationLink link:calculationLink link:definitionLink 0000057 - Disclosure - NET LOSS PER SHARE - Basic and Diluted Net Loss Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 0000058 - Disclosure - NET LOSS PER SHARE - Schedule of Antidilutive Awards (Details) link:presentationLink link:calculationLink link:definitionLink 0000059 - Disclosure - GEOGRAPHICAL INFORMATION (Details) link:presentationLink link:calculationLink link:definitionLink 0000060 - Disclosure - ACQUISITIONS (Details) link:presentationLink link:calculationLink link:definitionLink