2101100 - Disclosure - Basis of Presentation
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2401401 - Disclosure - Basis of Presentation (Details)
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2103100 - Disclosure - Business Combinations
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2403403 - Disclosure - Business Combinations - Assets Acquired and Liabilities Assumed (Details)
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2403402 - Disclosure - Business Combinations (Details)
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2403404 - Disclosure - Business Combinations - Intangible Assets Identified (Details)
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2303301 - Disclosure - Business Combinations (Tables)
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2117100 - Disclosure - Commitments and Contingencies
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2417402 - Disclosure - Commitments and Contingencies (Details)
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2417403 - Disclosure - Commitments and Contingencies - Future Minimum Lease Payments (Details)
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2317301 - Disclosure - Commitments and Contingencies (Tables)
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2427403 - Disclosure - - Condensed Balance Sheets - Additional Information (Details)
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2127100 - Disclosure - Condensed Financial Information of Registrant
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2427402 - Disclosure - Condensed Financial Information of Registrant - Condensed Balance Sheets (Details)
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2427406 - Disclosure - Condensed Financial Information of Registrant - Condensed Statements of Cash Flows (Details)
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2427405 - Disclosure - Condensed Financial Information of Registrant - Condensed Statements of Comprehensive Income (Details)
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2427404 - Disclosure - Condensed Financial Information of Registrant - Condensed Statements of Income (Details)
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2427407 - Disclosure - Condensed Financial Information of Registrant - Notes to Condensed Financial Information (Details)
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2327301 - Disclosure - Condensed Financial Information of Registrant (Tables)
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1001000 - Statement - CONSOLIDATED BALANCE SHEETS
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1001501 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)
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1004000 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS
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1003000 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
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1002000 - Statement - CONSOLIDATED STATEMENTS OF INCOME
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1002000 - Statement - CONSOLIDATED STATEMENTS OF INCOME
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1002501 - Statement - CONSOLIDATED STATEMENTS OF INCOME (Parenthetical)
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1005000 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY
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2109100 - Disclosure - Debt
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2409402 - Disclosure - Debt (Details)
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2409405 - Disclosure - Debt - Interest Cost Recognized (Details)
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2409407 - Disclosure - Debt - Lease Financing Obligations (Details)
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2409403 - Disclosure - Debt - Maturities (Details)
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2409404 - Disclosure - Debt - Schedule of Long-Term Debt (Details)
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2409406 - Disclosure - Debt - Senior Notes (Details)
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2309301 - Disclosure - Debt (Tables)
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2110100 - Disclosure - Derivatives
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2410402 - Disclosure - Derivatives (Details)
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2310301 - Disclosure - Derivatives (Tables)
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0001000 - Document - Document and Entity Information
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2116100 - Disclosure - Employee Benefits
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2416401 - Disclosure - Employee Benefits (Details)
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2104100 - Disclosure - Fair Value Measurements
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2404402 - Disclosure - Fair Value Measurements (Details)
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2404404 - Disclosure - Fair Value Measurements - Details of Long-Term Debt (Details)
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2404403 - Disclosure - Fair Value Measurements - Fair Value of Financial Instruments on Recurring Basis (Details)
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2304301 - Disclosure - Fair Value Measurements (Tables)
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2115100 - Disclosure - Goodwill and Intangible Assets
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2415404 - Disclosure - Goodwill and Intangible Assets - Balances of Goodwill (Details)
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2415402 - Disclosure - Goodwill and Intangible Assets (Details)
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2415403 - Disclosure - Goodwill and Intangible Assets - Intangible Assets Balances (Details)
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2315301 - Disclosure - Goodwill and Intangible Assets (Tables)
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2118100 - Disclosure - Income Taxes
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2418405 - Disclosure - Income Taxes - Deferred Tax Assets and Liabilities (Details)
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2418402 - Disclosure - Income Taxes (Details)
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2418403 - Disclosure - Income Taxes - Provision for income taxes (Details)
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2418404 - Disclosure - Income Taxes - Reconciliation of the U.S. Federal Statutory Income Tax Rate (Details)
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2318301 - Disclosure - Income Taxes (Tables)
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2418406 - Disclosure - Income Taxes - Unrecognized Tax Benefits (Details)
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2105100 - Disclosure - Investments
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2405404 - Disclosure - Investments - Available-for-Sale Investments (Details)
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2405403 - Disclosure - Investments - Contractual Maturities (Details)
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2405402 - Disclosure - Investments - Summary of Investments (Details)
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2305301 - Disclosure - Investments (Tables)
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2108100 - Disclosure - Medical Claims and Benefits Payable
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2408404 - Disclosure - Medical Claims and Benefits Payable - Components of the Change (Details)
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2408402 - Disclosure - Medical Claims and Benefits Payable (Details)
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2408403 - Disclosure - Medical Claims and Benefits Payable - Medical Claims and Future Benefits (Details)
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2308301 - Disclosure - Medical Claims and Benefits Payable (Tables)
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2102100 - Disclosure - Net Income per Share
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2402403 - Disclosure - Net Income per Share - Computation of Basic and Diluted EPS (Details)
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2402402 - Disclosure - Net Income per Share (Details)
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2302301 - Disclosure - Net Income per Share (Table)
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2114100 - Disclosure - Property, Equipment, and Capitalized Software
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2414403 - Disclosure - Property, Equipment, and Capitalized Software (Details)
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2414404 - Disclosure - Property, Equipment, and Capitalized Software - Future Minimum Rentals (Details)
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2414402 - Disclosure - Property, Equipment, and Capitalized Software - Summary of Property, Equipment, and Capitalized Software (Details)
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2314301 - Disclosure - Property, Equipment, and Capitalized Software (Tables)
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2125100 - Disclosure - Quarterly Results of Operations (Unaudited)
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2425402 - Disclosure - Quarterly Results of Operations (Unaudited) (Details)
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2325301 - Disclosure - Quarterly Results of Operations (Unaudited) (Tables)
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2106100 - Disclosure - Receivables
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2406402 - Disclosure - Receivables (Details)
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2306301 - Disclosure - Receivables (Tables)
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2112100 - Disclosure - Related Party Transactions
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2412401 - Disclosure - Related Party Transactions (Details)
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2107100 - Disclosure - Restricted Investments
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2407402 - Disclosure - Restricted Investments - Balances of Restricted Investments (Details)
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2407403 - Disclosure - Restricted Investments - Maturities of Held-to-Maturity (Details)
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2307301 - Disclosure - Restricted Investments (Tables)
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2123100 - Disclosure - Segment Information
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2423402 - Disclosure - Segment Information (Details)
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2423403 - Disclosure - Segment Information - Schedule of Operating Segment Information (Details)
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2323301 - Disclosure - Segment Information (Tables)
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2101100 - Disclosure - Significant Accounting Policies
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2401404 - Disclosure - Significant Accounting Policies - 3R Program Receivables (Payables) (Details)
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2401408 - Disclosure - Significant Accounting Policies - Consolidated Medical Care Costs (Details)
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2401406 - Disclosure - Significant Accounting Policies - Depreciation and Amortization (Details)
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2401403 - Disclosure - Significant Accounting Policies (Details)
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2201201 - Disclosure - Significant Accounting Policies (Policies)
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2401405 - Disclosure - Significant Accounting Policies - Quality Incentive Premium Revenue Recognized (Details)
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2401407 - Disclosure - Significant Accounting Policies - Schedule of Premium Revenue (Details)
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2301302 - Disclosure - Significant Accounting Policies (Tables)
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2111100 - Disclosure - Stockholders' Equity
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2411404 - Disclosure - Stockholders' Equity - Components of Share-based Compensation Expenses (Details)
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2411402 - Disclosure - Stockholders' Equity (Details)
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2411406 - Disclosure - Stockholders' Equity - Employee Stock Purchase Plan (Details)
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2411405 - Disclosure - Stockholders' Equity - Restricted and Performance Awards (Details)
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2411403 - Disclosure - Stockholders' Equity - Restricted Share Activity (Details)
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2411408 - Disclosure - Stockholders' Equity - Stock Incentive Plans (Details)
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2411407 - Disclosure - Stockholders' Equity - Stock Options (Details)
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2311301 - Disclosure - Stockholders' Equity (Tables)
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2430402 - Disclosure - Supplemental Condensed Consolidating Financial Information - Condensed Consolidating Balance Sheets (Details)
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2430403 - Disclosure - Supplemental Condensed Consolidating Financial Information - Condensed Consolidating Income Statements (Details)
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2430405 - Disclosure - Supplemental Condensed Consolidating Financial Information - Condensed Consolidating Statement of Cash Flow (Details)
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2430404 - Disclosure - Supplemental Condensed Consolidating Financial Information - Condensed Consolidating Statement of Comprehensive Income (Details)
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2130100 - Disclosure - Supplemental Condensed Consolidating Financial Information (Notes)
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2330301 - Disclosure - Supplemental Condensed Consolidating Financial Information (Tables)
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2117100 - Disclosure - Variable Interest Entities
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2417401 - Disclosure - Variable Interest Entities (Details)
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