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Disaggregation of Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9954487 - Disclosure - Revenue Recognition - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954487 - Disclosure - Revenue Recognition - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954488 - Disclosure - Revenue Recognition - Revenue by Geographic Location (Details) link:presentationLink link:calculationLink link:definitionLink 9954489 - Disclosure - Revenue Recognition - Receivables and Deferred Revenue (Details) link:presentationLink link:calculationLink link:definitionLink 9954490 - Disclosure - Revenue Recognition - Accounts Receivable (Details) link:presentationLink link:calculationLink link:definitionLink 9954491 - Disclosure - Net Income (Loss) Per Share - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954492 - Disclosure - Net Income (Loss) Per Share - Reconciliation of Shares Used in Calculating Basic and Diluted Earnings Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 9954493 - Disclosure - Net Income (Loss) Per Share - Schedule of Antidilutive Securities Excluded from Computation of EPS (Details) link:presentationLink link:calculationLink link:definitionLink 9954494 - Disclosure - Segment Information - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954495 - Disclosure - Segment Information - Long-Lived Assets by Geographic Region (Details) link:presentationLink link:calculationLink link:definitionLink 9954496 - Disclosure - Goodwill and Intangible Assets - Changes in Carrying Amount of Goodwill (Details) link:presentationLink link:calculationLink link:definitionLink 9954497 - Disclosure - Goodwill and Intangible Assets - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954498 - Disclosure - Goodwill and Intangible Assets - Intangible Assets (Details) link:presentationLink link:calculationLink link:definitionLink 9954499 - Disclosure - Goodwill and Intangible Assets - Future Amortization Expense (Details) link:presentationLink link:calculationLink link:definitionLink 9954500 - Disclosure - Property and Equipment (Details) link:presentationLink link:calculationLink link:definitionLink 9954501 - Disclosure - Property and Equipment - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954502 - Disclosure - Property and Equipment - Schedule of Depreciation (Details) link:presentationLink link:calculationLink link:definitionLink 9954503 - Disclosure - Accrued Expenses and Other Current Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9954504 - Disclosure - Convertible Senior Notes, Net of Current Portion, Capped Call Transactions, and Warrants - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954505 - Disclosure - Convertible Senior Notes, Net of Current Portion, Capped Call Transactions, and Warrants - Schedule of Carrying Amount of Liability Component of Convertible Debt (Details) link:presentationLink link:calculationLink link:definitionLink 9954506 - Disclosure - Convertible Senior Notes, Net of Current Portion, Capped Call Transactions, and Warrants - Schedule of Interest Expense Incurred (Details) link:presentationLink link:calculationLink link:definitionLink 9954507 - Disclosure - Leases (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9954508 - Disclosure - Leases (Supplemental cash flow information related to leases) (Details) link:presentationLink link:calculationLink link:definitionLink 9954509 - Disclosure - Leases (Schedule of components of lease costs) (Details) link:presentationLink link:calculationLink link:definitionLink 9954510 - Disclosure - Leases (Supplemental balance sheet information related to leases) (Details) link:presentationLink link:calculationLink link:definitionLink 9954511 - Disclosure - Fair Value Measurements - Financial Assets and Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9954512 - Disclosure - Fair Value Measurements - Changes in Fair Value of Level 3 Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9954513 - Disclosure - Fair Value Measurements - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954514 - Disclosure - Fair Value Measurements - Schedule of Carrying Value and Fair Value of Debt Instruments (Details) link:presentationLink link:calculationLink link:definitionLink 9954515 - Disclosure - Fair Value Measurements - Pricing Model Assumptions (Details) link:presentationLink link:calculationLink link:definitionLink 9954516 - Disclosure - Commitments and Contingencies (Narrative) (Details) link:presentationLink link:calculationLink link:definitionLink 9954517 - Disclosure - Stockholders' Equity - Summary of Stock Option Activity and Weighted Average Exercise Prices (Details) link:presentationLink link:calculationLink link:definitionLink 9954518 - Disclosure - Stockholders' Equity - Summary of Restricted Stock Unit Activity and Weighted Average Exercise Price (Details) link:presentationLink link:calculationLink link:definitionLink 9954519 - Disclosure - Stockholders' Equity - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954520 - Disclosure - Stockholders' Equity - Schedule of Stock-Based Compensation Costs (Details) link:presentationLink link:calculationLink link:definitionLink 9954521 - Disclosure - Restructuring - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954522 - Disclosure - Restructuring - Schedule of Restructuring Reserve (Details) link:presentationLink link:calculationLink link:definitionLink 9954523 - Disclosure - Restructuring - Schedule of Restructuring Liability by Cost Type (Details) link:presentationLink link:calculationLink link:definitionLink 9954524 - Disclosure - Legal Matters (Details) link:presentationLink link:calculationLink link:definitionLink 9954525 - Disclosure - Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9954526 - Disclosure - Equity Method Investments (Details) link:presentationLink link:calculationLink link:definitionLink 9954527 - Disclosure - Variable Interest Entity (Details) link:presentationLink link:calculationLink link:definitionLink 9954528 - Disclosure - Related Parties (Details) link:presentationLink link:calculationLink link:definitionLink 9954529 - Disclosure - Divestiture - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink