001 - Statement - CONDENSED BALANCE SHEETS link:presentationLink link:definitionLink link:calculationLink 002 - Statement - CONDENSED BALANCE SHEETS (Parentheticals) link:presentationLink link:definitionLink link:calculationLink 003 - Statement - CONDENSED STATEMENTS OF OPERATIONS link:presentationLink link:definitionLink link:calculationLink 004 - Statement - CONDENSED STATEMENTS OF STOCKHOLDERS’ EQUITY link:presentationLink link:definitionLink link:calculationLink 005 - Statement - CONDENSED STATEMENTS OF CASH FLOWS link:presentationLink link:definitionLink link:calculationLink 006 - Disclosure - Overview and Basis of Presentation link:presentationLink link:definitionLink link:calculationLink 007 - Disclosure - Recently Issued Accounting Standards link:presentationLink link:definitionLink link:calculationLink 008 - Disclosure - Revenue Recognition link:presentationLink link:definitionLink link:calculationLink 009 - Disclosure - Stock-Based Compensation link:presentationLink link:definitionLink link:calculationLink 010 - Disclosure - Fair Value Measurements link:presentationLink link:definitionLink link:calculationLink 011 - Disclosure - Marketable Securities link:presentationLink link:definitionLink link:calculationLink 012 - Disclosure - Net Income per Share link:presentationLink link:definitionLink link:calculationLink 013 - Disclosure - Commitments and Contingencies link:presentationLink link:definitionLink link:calculationLink 014 - Disclosure - Segment Reporting link:presentationLink link:definitionLink link:calculationLink 996000 - Disclosure - Stock-Based Compensation (Tables) link:presentationLink link:definitionLink link:calculationLink 996001 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:definitionLink link:calculationLink 996002 - Disclosure - Marketable Securities (Tables) link:presentationLink link:definitionLink link:calculationLink 996003 - Disclosure - Net Income per Share (Tables) link:presentationLink link:definitionLink link:calculationLink 996004 - Disclosure - Segment Reporting (Tables) link:presentationLink link:definitionLink link:calculationLink 996005 - Disclosure - Stock-Based Compensation - Stock-based Compensation Expense for Stock Options (Details) link:presentationLink link:definitionLink link:calculationLink 996006 - Disclosure - Fair Value Measurements - Cash and Cash Equivalents and Marketable Securities Measured at Fair Value on Recurring Basis (Details) link:presentationLink link:definitionLink link:calculationLink 996007 - Disclosure - Marketable Securities (Details) link:presentationLink link:definitionLink link:calculationLink 996008 - Disclosure - Marketable Securities - Cost and Fair Value of Marketable Securities (Details) link:presentationLink link:definitionLink link:calculationLink 996009 - Disclosure - Marketable Securities - Maturities of Marketable Securities (Details) link:presentationLink link:definitionLink link:calculationLink 996010 - Disclosure - Net Income per Share (Details) link:presentationLink link:definitionLink link:calculationLink 996011 - Disclosure - Net Income per Share - Net Income per Share (Details) link:presentationLink link:definitionLink link:calculationLink 996012 - Disclosure - Segment Reporting (Details) link:presentationLink link:definitionLink link:calculationLink 996013 - Disclosure - Segment Reporting - Segment Financial Information of Reportable Segments (Details) link:presentationLink link:definitionLink link:calculationLink 000 - Document - Document And Entity Information link:presentationLink link:definitionLink link:calculationLink