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Disclosure - Description of Business and Summary of Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 0000011 - Disclosure - Revenue Recognition link:presentationLink link:calculationLink link:definitionLink 0000012 - Disclosure - Net Loss Per Share link:presentationLink link:calculationLink link:definitionLink 0000013 - Disclosure - Segment Information link:presentationLink link:calculationLink link:definitionLink 0000014 - Disclosure - Goodwill and Intangible Assets, Net link:presentationLink link:calculationLink link:definitionLink 0000015 - Disclosure - Property and Equipment link:presentationLink link:calculationLink link:definitionLink 0000016 - Disclosure - Accrued Liabilities and Other Current Liabilities link:presentationLink link:calculationLink link:definitionLink 0000017 - Disclosure - Convertible Senior Notes, Net of Current Portion and Capped Call Transactions link:presentationLink link:calculationLink link:definitionLink 0000018 - 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Disclosure - Related Parties link:presentationLink link:calculationLink link:definitionLink 0000029 - Disclosure - Divestiture link:presentationLink link:calculationLink link:definitionLink 0000030 - Disclosure - Subsequent Events link:presentationLink link:calculationLink link:definitionLink 9954471 - Disclosure - Description of Business and Summary of Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 9954472 - Disclosure - Description of Business and Summary of Significant Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 9954473 - Disclosure - Revenue from Contract with Customer (Tables) link:presentationLink link:calculationLink link:definitionLink 9954474 - Disclosure - Net Loss Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 9954475 - Disclosure - Segment Information (Tables) link:presentationLink link:calculationLink link:definitionLink 9954476 - Disclosure - 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Disclosure - Fair Value Measurements - Assets and Liabilities Measured at Fair Value (Details) link:presentationLink link:calculationLink link:definitionLink 9954517 - Disclosure - Fair Value Measurements (Schedule of Carrying Value and Fair Value of Debt Instruments) (Details) link:presentationLink link:calculationLink link:definitionLink 9954518 - Disclosure - Fair Value Measurements - Level 3 Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9954519 - Disclosure - Fair Value Measurements - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954520 - Disclosure - Commitments and Contingencies - Employee Benefit Plans, Letters of Credit, and Non-Income Related Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9954521 - Disclosure - Stockholders' Equity - Stock Option Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9954522 - Disclosure - Stockholders' Equity - Weighted Average Assumption (Details) link:presentationLink link:calculationLink link:definitionLink 9954523 - Disclosure - Stockholders' Equity - Restricted Stock Unit Activity (Details) link:presentationLink link:calculationLink link:definitionLink 9954524 - Disclosure - Stockholders' Equity - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954525 - Disclosure - Restructuring - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954526 - Disclosure - Restructuring - Liability for Restructuring Charges (Details) link:presentationLink link:calculationLink link:definitionLink 9954527 - Disclosure - Restructuring - Restructuring Charges (Details) link:presentationLink link:calculationLink link:definitionLink 9954528 - Disclosure - Income Taxes - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954529 - Disclosure - Income Taxes - Domestic and Foreign Components of Income Before Provision for Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9954530 - Disclosure - Income Taxes - Schedule of Provision for Income Taxes (Details) link:presentationLink link:calculationLink link:definitionLink 9954531 - Disclosure - Income Taxes - Schedule of Reconciliations of Federal Statutory Tax Rate to Effective Income Tax Rate (Details) link:presentationLink link:calculationLink link:definitionLink 9954532 - Disclosure - Income Taxes - Schedule of Federal Deferred Tax Assets and Deferred Tax Liabilities (Details) link:presentationLink link:calculationLink link:definitionLink 9954533 - Disclosure - Income Taxes - Schedule of Unrecognized Tax Benefits (Details) link:presentationLink link:calculationLink link:definitionLink 9954534 - Disclosure - Equity Method Investment - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 9954535 - Disclosure - Variable Interest Entities (Details) link:presentationLink link:calculationLink link:definitionLink 9954536 - Disclosure - Related Party Disclosures (Details) link:presentationLink link:calculationLink link:definitionLink 9954537 - 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