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Disclosure - Net Loss per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 100270 - Disclosure - Fair Value of Financial Instruments (Tables) link:presentationLink link:calculationLink link:definitionLink 100280 - Disclosure - Restricted cash (Tables) link:presentationLink link:calculationLink link:definitionLink 100290 - Disclosure - Property and Equipment, Net (Tables) link:presentationLink link:calculationLink link:definitionLink 100300 - Disclosure - Capitalized Software Development Costs (Tables) link:presentationLink link:calculationLink link:definitionLink 100310 - Disclosure - Convertible Senior Notes (Tables) link:presentationLink link:calculationLink link:definitionLink 100320 - Disclosure - Leases (Tables) link:presentationLink link:calculationLink link:definitionLink 100330 - Disclosure - Commitments and Contingencies (Tables) link:presentationLink link:calculationLink link:definitionLink 100340 - Disclosure - Business Acquisition (Tables) link:presentationLink link:calculationLink link:definitionLink 100350 - 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Disclosure - Net Loss per Share - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100430 - Disclosure - Net Loss per Share - Schedule of Potentially Dilutive Common Stock Equivalents (Detail) link:presentationLink link:calculationLink link:definitionLink 100440 - Disclosure - Fair Value of Financial Instruments - Schedule of Fair Value of Financial Assets and Liabilities (Detail) link:presentationLink link:calculationLink link:definitionLink 100450 - Disclosure - Fair Value of Financial Instruments - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100460 - Disclosure - Fair Value of Financial Instruments - Summary of Composition of Short and Long Term Investments (Detail) link:presentationLink link:calculationLink link:definitionLink 100470 - Disclosure - Fair Value of Financial Instruments - Summary of Contractual Maturities of Short and Long Term Investments (Detail) link:presentationLink link:calculationLink link:definitionLink 100480 - Disclosure - Equity Method Investment - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100490 - Disclosure - Restricted Cash - Summary of Reconciliation of Cash, Cash Equivalents and Restricted Cash (Detail) link:presentationLink link:calculationLink link:definitionLink 100500 - Disclosure - Property and Equipment, Net - Schedule of Property and Equipment, Net (Detail) link:presentationLink link:calculationLink link:definitionLink 100510 - Disclosure - Property and Equipment, Net - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100520 - Disclosure - Capitalized Software Development Costs - Summary of Capitalized Software Development Costs, Exclusive of those Recorded within Property and Equipment (Detail) link:presentationLink link:calculationLink link:definitionLink 100530 - Disclosure - Capitalized Software Development Costs - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100540 - 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Disclosure - Commitments and Contingencies - Schedule of Future Minimum Payments (Detail) link:presentationLink link:calculationLink link:definitionLink 100620 - Disclosure - Commitments and Contingencies - Schedule of Future Minimum Payments Under Non-Cancelable Arrangements (Details) link:presentationLink link:calculationLink link:definitionLink 100630 - Disclosure - Business Acquisition - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100640 - Disclosure - Business Acquisition - Summary of Fair Value of Assets Acquired and Liabilities Assumed (Detail) link:presentationLink link:calculationLink link:definitionLink 100650 - Disclosure - Changes in Stockholders' Equity - Summary of Changes in Stockholders' Equity (Detail) link:presentationLink link:calculationLink link:definitionLink 100660 - Disclosure - Changes in Stockholders' Equity - Summary of Changes in Stockholders' Equity (Parenthetical) (Detail) link:presentationLink link:calculationLink link:definitionLink 100670 - Disclosure - Changes in Accumulated Other Comprehensive Loss - Changes in Accumulated Other Comprehensive Loss (Detail) link:presentationLink link:calculationLink link:definitionLink 100680 - Disclosure - Stock-Based Compensation Expense - Schedule of Stock-Based Compensation Expense by Award Type (Detail) link:presentationLink link:calculationLink link:definitionLink 100690 - Disclosure - Stock-Based Compensation Expense - Effect of Stock-Based Compensation on Income by Line Item (Detail) link:presentationLink link:calculationLink link:definitionLink 100700 - Disclosure - Stock-Based Compensation Expense - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100710 - Disclosure - Segment Information and Geographic Data - Additional Information (Detail) link:presentationLink link:calculationLink link:definitionLink 100720 - Disclosure - Segment Information and Geographic Data - Revenues by Geographical Region (Detail) link:presentationLink link:calculationLink link:definitionLink 100730 - Disclosure - Segment Information and Geographic Data - Long Lived Assets by Geographical Region (Detail) link:presentationLink link:calculationLink link:definitionLink