Concentrations of Credit Risk Concentration Risk, Credit Risk, Policy [Policy Text Block] Due after five years through ten years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Common stock authorized Stock Repurchase Program, Authorized Amount Face amount Debt Instrument, Face Amount Interest expense Interest Expense Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Net income Net income Net Income (Loss) Attributable to Parent Other revenue Interest and Dividend Income, Operating Receivables Receivable [Policy Text Block] Schedule of Amounts Due to Government Agencies Reserves Reported to Other Agencies [Table Text Block] Other Other Claims Payable Other Claims Payable Marketplace program: Amounts Due To Government Agencies, Marketplace Program [Abstract] Amounts Due To Government Agencies, Marketplace Program [Abstract] Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Magellan Complete Care Magellan Complete Care [Member] Magellan Complete Care [Member] Receivable Type [Axis] Receivable Type [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] Retained earnings Retained Earnings (Accumulated Deficit) Operating segments Operating Segments [Member] Liability for Claims and Claims Adjustment Expense [Line Items] Liability for Claims and Claims Adjustment Expense [Line Items] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Entity Filer Category Entity Filer Category Security Exchange Name Security Exchange Name Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Schedule of Restricted Cash and Cash Equivalents Restrictions on Cash and Cash Equivalents [Table Text Block] Income Statement [Abstract] Income Statement [Abstract] Contingent consideration liabilities settled Contingent consideration liabilities settled Payment for Contingent Consideration Liability, Financing Activities Additional paid-in capital Additional Paid in Capital, Common Stock Fair Value Estimate of Fair Value Measurement [Member] Entity Registrant Name Entity Registrant Name Passport Health Plan, Inc. Passport Health Plan Inc [Member] Passport Health Plan Inc Risk adjustment receivable Affordable Care Act, Premium Stabilization Program, Risk Adjustment, Receivable Affordable Care Act, Premium Stabilization Program, Risk Adjustment, Receivable Other assets Other Assets, Noncurrent Amounts due government agencies Total amounts due government agencies Medical Premium Liability Due To Agency Medical Premium Liability Due to Agency Segments [Axis] Segments [Axis] Net increase in cash, cash equivalents, and restricted cash and cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Entity File Number Entity File Number Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Income tax expense Income Tax Expense (Benefit) Income taxes Increase (Decrease) in Income Taxes Payable Amendment Flag Amendment Flag Amortized Cost Debt Securities, Available-for-Sale, Amortized Cost, Excluding Accrued Interest, after Allowance for Credit Loss Goodwill Goodwill, Purchase Accounting Adjustments Equity Components [Axis] Equity Components [Axis] Entity Tax Identification Number Entity Tax Identification Number Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Document Fiscal Period Focus Document Fiscal Period Focus Total current assets Assets, Current Denominator: Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Schedule of Operating Segment Information Schedule of Segment Reporting Information, by Segment [Table Text Block] Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Business Acquisition, Contingent Consideration [Line Items] Business Acquisition, Contingent Consideration [Line Items] Common stock purchases Stock Repurchased During Period, Value Estimated Fair Value Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Maturity period (less than) Investments, Maturity Period Investments, Maturity Period Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Schedule of Cash and cash equivalents Schedule of Cash and Cash Equivalents [Table Text Block] Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Schedule of Business Acquisitions by Acquisition, Contingent Consideration [Table] Schedule of Business Acquisitions by Acquisition, Contingent Consideration [Table] Stock purchases (in shares) Weighted Average Number of Shares, Common Stock Subject to Repurchase or Cancellation Business Combination and Asset Acquisition [Abstract] Business Acquisition [Axis] Business Acquisition [Axis] Equity Component [Domain] Equity Component [Domain] Share-based compensation (in shares) Shares Issued, Shares, Share-based Payment Arrangement, after Forfeiture Common stock purchases (in shares) Repurchased of common stock (in shares) Stock Repurchased During Period, Shares Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Local Phone Number Local Phone Number Credit Facility [Domain] Credit Facility [Domain] 3.875% Notes due 2032 3.875% Senior Notes [Member] 3.875% Senior Notes ASSETS Assets [Abstract] Total Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value Schedule of Investments Schedule of Available-for-sale Securities Reconciliation [Table Text Block] Payments for medical care costs related to: Payments For Medical Care Costs [Abstract] Payments for medical care costs. 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Document Type Document Type Schedule of Liability for Unpaid Claims and Claims Adjustment Expense Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Debt instrument, interest rate, stated percentage Percentage of contractual interest rate on notes Debt Instrument, Interest Rate, Stated Percentage Schedule of Receivables Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Consolidation and Interim Financial Information Consolidation And Interim Financial Information, Policy [Policy Text Block] Consolidation And Interim Financial Information, Policy [Policy Text Block] Due after one year through five years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year One Through Five Premium revenue Premiums Earned, Net Contingent consideration liabilities Business Combination, Contingent Consideration, Liability Number of states with programs Number Of States With Government-Sponsored Healthcare Programs Number Of States With Government-Sponsored Healthcare Programs Credit Facility Revolving Credit Facility [Member] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Significant Accounting Policies Significant Accounting Policies [Text Block] Minimum MLR and profit sharing Amounts Due To Government Agencies, Medicare, Medical Loss Ratio And Profit Sharing, Threshold Amounts Due To Government Agencies, Medicare, Medical Loss Ratio And Profit Sharing, Threshold Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Change in non-risk and other provider payables Medical Claims And Benefits Payable, Adjustments, Change In Provider Medical Claims and Benefits Payable, Adjustments, Change in Provider Medical claims and benefits payable Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Medical Claims and Benefits Payable Business Combination, Provisional Information, Initial Accounting Incomplete, Adjustment, Medical Claims and Benefits Payable Fair Value Measurements, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Amortized Cost Debt Securities, Available-for-sale, Amortized Cost, Fiscal Year Maturity [Abstract] Restricted cash and cash equivalents Restricted Cash and Cash Equivalents Denominator for basic net income per share (in shares) Weighted Average Number of Shares Outstanding, Basic Net income per share - 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Medical care costs Cost of Goods and Services Sold Revenue: Revenues [Abstract] Minimum Minimum [Member] Document Period End Date Document Period End Date Total Number of Positions Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months, Number of Positions Unusual or Infrequent Item, or Both [Domain] Unusual or Infrequent Item, or Both [Domain] Organization and Basis of Presentation Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Stock-based compensation (in shares) Weighted Average Number of Shares, Share Based Compensation Weighted Average Number of Shares, Share Based Compensation Investments Marketable Securities, Current Entity Central Index Key Entity Central Index Key Other Other Securities [Member] Other Securities Total margin Gross Profit Amount outstanding under letter of credit Long-term Line of Credit Total liabilities Financial and Nonfinancial Liabilities, Fair Value Disclosure Other comprehensive loss: Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Medicare program: Amounts Due To Government Agencies Medicare Program [Abstract] Amounts Due To Government Agencies Medicare Program Health Plans Health Plans [Member] Health plans. Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Debt term Debt Instrument, Term Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Gross unrealized gains Debt Securities, Available-for-sale, Accumulated Gross Unrealized Gain, before Tax Debt Securities, Available-for-sale [Table] Debt Securities, Available-for-sale [Table] Due in one year or less Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, Year One Investment income Net Investment Income Entity Address, State or Province Entity Address, State or Province Due after ten years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Schedule of Premium Revenue by Health Plan Type [Line Items] Schedule of Premium Revenue by Health Plan Type [Line Items] Schedule of premium revenue by health plan type. 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Investments Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Other Other Medicare Program Other Medicare Program Liability for Claims and Claims Adjustment Expense [Table] Liability for Claims and Claims Adjustment Expense [Table] Risk adjustment payable Affordable Care Act, Premium Stabilization Program, Risk Adjustment, (Payable) Affordable Care Act, Premium Stabilization Program, Risk Adjustment, (Payable) Cover [Abstract] Cover [Abstract] Stock-based compensation (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Cash, cash equivalents, and restricted cash and cash equivalents at beginning of period Cash, cash equivalents, and restricted cash and cash equivalents at end of period Total cash, cash equivalents, and restricted cash and cash equivalents presented in the consolidated statements of cash flows Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Total operating expenses Less: other operating expenses Costs and Expenses Amortized cost, due one year through five years Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Maturity, Allocated and Single Maturity Date, after Year One through Five Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Current assets: Assets, Current [Abstract] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Other, net Proceeds from (Payments for) Other Financing Activities 4.375% Notes due 2028 4.375% Senior Notes [Member] 4.375% Senior Notes Other Other Program [Member] Other Program Income Taxes Income Tax, Policy [Policy Text Block] Unrealized investment loss OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment and Tax Medical claims and benefits payable Total 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Unpaid Claims and Claims Adjustment Expense, Incurred but Not Paid (IBNP), Fee-for-service Claims, Amount Liability for Unpaid Claims and Claims Adjustment Expense, Incurred but Not Paid (IBNP), Fee-for-service Claims, Amount Weighted-average number of shares issued: Weighted Average Number of Shares Outstanding, Basic [Abstract] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Numerator: Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Other Amounts Due to Government Agencies, Other Amounts Due to Government Agencies, Other Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] Recognized gain (loss) Gain (Loss) on Fair Value Hedges Recognized in Earnings Measurement Basis [Axis] Measurement Basis [Axis] Consolidation Items [Domain] Consolidation Items [Domain] Equity [Abstract] Equity [Abstract] Total medical care costs Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims Carrying Amount Reported Value Measurement [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Document Quarterly Report Document Quarterly Report Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Other expenses, net: Nonoperating Income (Expense) [Abstract] Number of members eligible for the health care programs, approximately Business Combination, Number Of Members Eligible For The Health Care Programs Number of members eligible for the health care programs. Class of Stock [Line Items] Class of Stock [Line Items] Credit Facility [Axis] Credit Facility [Axis] Estimated Fair Value Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, Less than 12 Months Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Common Stock Common Stock [Member] Entity Address, Address Line One Entity Address, Address Line One Medical Claims and Benefits Payable Medical Claims And Benefits Payable [Text Block] Medical claims and benefits payable. Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Investing Activities Entity Address, Address Line Two Entity Address, Address Line Two Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Marketplace Marketplace [Member] Marketplace Segments Segment Reporting Disclosure [Text Block] Operating income Operating Income (Loss) Operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Entity Shell Company Entity Shell Company Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-sale [Line Items] Non-risk provider payables Medical Claims And Benefits Payable Medical Claims and Benefits Payable Due after one year through five years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year One Through Five Gross unrealized losses Debt Securities, Available-for-sale, Accumulated Gross Unrealized Loss, before Tax Total current liabilities Liabilities, Current Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Document Fiscal Year Focus Document Fiscal Year Focus Components of medical care costs related to: Components Of Medical Care Costs [Abstract] Components of medical care costs. 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