0000001 - Document - Cover Page link:presentationLink link:calculationLink link:definitionLink 0000002 - Statement - CONSOLIDATED STATEMENTS OF INCOME link:presentationLink link:calculationLink link:definitionLink 0000003 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME link:presentationLink link:calculationLink link:definitionLink 0000004 - Statement - CONSOLIDATED BALANCE SHEETS link:presentationLink link:calculationLink link:definitionLink 0000005 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical) link:presentationLink link:calculationLink link:definitionLink 0000006 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY link:presentationLink link:calculationLink link:definitionLink 0000007 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS link:presentationLink link:calculationLink link:definitionLink 0000008 - Disclosure - Organization and Basis of Presentation link:presentationLink link:calculationLink link:definitionLink 0000009 - Disclosure - Significant Accounting Policies link:presentationLink link:calculationLink link:definitionLink 0000010 - Disclosure - Net Income Per Share link:presentationLink link:calculationLink link:definitionLink 0000011 - Disclosure - Fair Value Measurements link:presentationLink link:calculationLink link:definitionLink 0000012 - Disclosure - Investments link:presentationLink link:calculationLink link:definitionLink 0000013 - Disclosure - Medical Claims and Benefits Payable link:presentationLink link:calculationLink link:definitionLink 0000014 - Disclosure - Debt link:presentationLink link:calculationLink link:definitionLink 0000015 - Disclosure - Segments link:presentationLink link:calculationLink link:definitionLink 0000016 - Disclosure - Commitments and Contingencies link:presentationLink link:calculationLink link:definitionLink 0000017 - Disclosure - Significant Accounting Policies (Policies) link:presentationLink link:calculationLink link:definitionLink 0000018 - Disclosure - Significant Accounting Policies (Tables) link:presentationLink link:calculationLink link:definitionLink 0000019 - Disclosure - Net Income Per Share (Tables) link:presentationLink link:calculationLink link:definitionLink 0000020 - Disclosure - Fair Value Measurements (Tables) link:presentationLink link:calculationLink link:definitionLink 0000021 - Disclosure - Investments (Tables) link:presentationLink link:calculationLink link:definitionLink 0000022 - Disclosure - Medical Claims and Benefits Payable (Tables) link:presentationLink link:calculationLink link:definitionLink 0000023 - Disclosure - Debt (Tables) link:presentationLink link:calculationLink link:definitionLink 0000024 - Disclosure - Segments (Tables) link:presentationLink link:calculationLink link:definitionLink 0000025 - Disclosure - Organization and Basis of Presentation (Details) link:presentationLink link:calculationLink link:definitionLink 0000026 - Disclosure - Significant Accounting Policies - Cash, Cash Equivalents, and Restricted Cash (Details) link:presentationLink link:calculationLink link:definitionLink 0000027 - Disclosure - Significant Accounting Policies - Receivables (Details) link:presentationLink link:calculationLink link:definitionLink 0000028 - Disclosure - Significant Accounting Policies - Amounts Due To Government Agencies (Details) link:presentationLink link:calculationLink link:definitionLink 0000029 - Disclosure - Significant Accounting Policies - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000030 - Disclosure - Net Income Per Share (Details) link:presentationLink link:calculationLink link:definitionLink 0000031 - Disclosure - Fair Value Measurements - Financial Instruments on a Recurring Basis (Details) link:presentationLink link:calculationLink link:definitionLink 0000032 - Disclosure - Fair Value Measurements - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000033 - Disclosure - Fair Value Measurements - Long-Term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 0000034 - Disclosure - Investments - Summary of Investments (Details) link:presentationLink link:calculationLink link:definitionLink 0000035 - Disclosure - Investments - Contractual Maturities of Available-for-Sale Investments (Details) link:presentationLink link:calculationLink link:definitionLink 0000036 - Disclosure - Investments - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000037 - Disclosure - Investments - Available-for-Sale Investments (Details) link:presentationLink link:calculationLink link:definitionLink 0000038 - Disclosure - Medical Claims and Benefits Payable - Medical Claims and Benefits Payable (Details) link:presentationLink link:calculationLink link:definitionLink 0000039 - Disclosure - Medical Claims and Benefits Payable - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000040 - Disclosure - Medical Claims and Benefits Payable - Components of Change in Medical Claims and Benefits Payable (Details) link:presentationLink link:calculationLink link:definitionLink 0000041 - Disclosure - Debt - Schedule of Long-Term Debt (Details) link:presentationLink link:calculationLink link:definitionLink 0000042 - Disclosure - Debt - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000043 - Disclosure - Segments - Narrative (Details) link:presentationLink link:calculationLink link:definitionLink 0000044 - Disclosure - Segments - Operating Segment Information (Details) link:presentationLink link:calculationLink link:definitionLink 0000045 - Disclosure - Segments - Reconciliation of Gross Margin to Consolidated Income (Details) link:presentationLink link:calculationLink link:definitionLink