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Entity [Domain] Entity [Domain] Issuance of common stock related to warrants exercised Issuance Of Common Stock Related To Warrants Exercised Issuance Of Common Stock Related To Warrants Exercised Vested restricted stock units (in shares) Stock Issued During Period, Shares, Restricted Stock Award, Gross Schedule Of Reverse Capitalization [Line Items] Schedule Of Reverse Capitalization [Line Items] Schedule Of Reverse Capitalization [Line Items] Goodwill acquired Goodwill, Acquired During Period Weighted -average exercise price of warrants exercisable (in dollars per share) Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Exercisable, Weighted Average Exercise Price Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Exercisable, Weighted Average Exercise Price Proceeds from reverse recapitalization, net of transaction costs Proceeds From Reverse Capitalization Net of Transaction Costs Proceeds from reverse capitalization, net of transaction costs. 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Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Total investment securities Investments [Abstract] Depreciation and amortization Depreciation and amortization expense Depreciation, Depletion and Amortization, Nonproduction Healthcare receivables Receivables from Customers Unpaid claims Assumed Liability for Unpaid Claims and Claims Adjustment Expense Clover Health Investments Corp Clover Health Investments Corp [Member] Clover health investments, corp. 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Thereafter Lessee, Operating Lease, Liability, To Be Paid, After Year Four Amount of lessee's undiscounted obligation for lease payment for operating lease due after four fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). 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Diluted weighted average number of common shares and common shares equivalents outstanding, after reverse capitalization (in shares) Diluted weighted average number of common shares and common shares equivalents outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Letter of Credit Agreement Letter of Credit [Member] Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Debt Disclosure [Abstract] Interest on convertible securities Effective Income Tax Rate Reconciliation, Interest On Convertible Securities, Amount Effective Income Tax Rate Reconciliation, Interest On Convertible Securities, Amount Trading days Share-Based Compensation Arrangement By Share-Based Payment Award, Trading Days Share-Based Compensation Arrangement By Share-Based Payment Award, Trading Days Fair Value, Separate Account Investment [Table] Fair Value, Separate Account Investment [Table] Amortization of notes and securities discounts Amortization of notes and securities discounts Amortization of Debt Issuance Costs and Discounts Net cash provided by financing activities Net cash provided by financing activities Net Cash Provided by (Used in) Financing Activities Short-term Debt, Type Short-term Debt, Type [Axis] Net medical claims incurred Net claims incurred and claims adjustment expense Policyholder Benefits and Claims Incurred, Net Common stock, $0.0001 par value, 351,572,668 shares authorized; 89,972,184 and 88,674,206 issued; and 89,206,266 and 88,279,119 shares outstanding; after reverse capitalization as of December 31, 2020 and 2019, respectively Common stock, $0.0001 par value,351,572,668 shares authorized; 89,972,184 and88,674,206 issued; and 89,206,266 and 88,279,119; after reverse capitalization, outstanding as of December 31, 2020 and 2019, respectively Common stock, $0.0001 par value Common Stock, Value, Issued Common Class Z Common Class Z [Member] Common Class Z member. Reinsurance recoverable Increase (Decrease) in Reinsurance Recoverable SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract] Sale of stock, price per share (in dollars per share) Sale of Stock, Price Per Share Investment securities, available-for-sale: Available-for-sale Securities [Member] Goodwill and other intangible assets Intangible Assets, Net (Including Goodwill) Cash paid for redemption of common stock Stock Redeemed or Called During Period, Value Net loss per share Earnings Per Share, Policy [Policy Text Block] Schedule of Operating Leased Assets [Table] Schedule of Operating Leased Assets [Table] Common stock, shares, issued (in shares) Common shares issued (in shares) Common Stock, Shares, Issued Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Operating lease liabilities Total Operating Lease, Liability Notes and securities payable, net of discount and deferred issuance costs Notes payable, net of discount and deferred issuance costs Long-term Debt, Excluding Current Maturities Segment Reporting [Abstract] Series D Preferred stock Series D Preferred Stock [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Total recognized losses (gains) Fair Value, Asset (Liability), Recurring Basis, Still Held, Unrealized Gain (Loss) Convertible Preferred stock (Series Seed A, A-1, B, C, and D), $0.0001 par value; 155,387,025 shares authorized as of December 31, 2020 and 2019; 139,444,346 shares; after reverse capitalization, issued and outstanding as of December 31, 2020 and 2019; aggregate liquidation preference of $470,256 as of December 31, 2020 Beginning balance Ending balance Carrying Value Convertible Preferred stock (Series Seed A, A-1, B, C, and D), $0.0001 par value Temporary Equity, Carrying Amount, Attributable to Parent Clover shareholders’ deficit Stockholders' Equity Attributable to Parent Interest expense carryforward Deferred Tax Asset, Interest Carryforward Total purchase price Business Combination, Consideration Transferred Investment securities Securities Investment [Member] Other income Revenue Not from Contract with Customer, Other Entity Address, City or Town Entity Address, City or Town Surplus note Notes Payable Fair Value Hierarchy and NAV Fair Value Hierarchy and NAV [Axis] RSUs Restricted Stock Units (RSUs) [Member] Accounts payable and accrued expenses Accounts Payable and Accrued Liabilities, Current 2025 Lessee, Operating Lease, Liability, to be Paid, Year Five Financial Instrument Financial Instrument [Axis] Intercompany payable Intercompany Payable Intercompany Payable Schedule of Claims Development and Claim Frequency Short-duration Insurance Contracts, Claims Development [Table Text Block] Short-term lease cost Short-term Lease, Cost Loss on disposal of property and equipment Gain (Loss) on Disposition of Property Plant Equipment Gross unrealized gains Available for Sale Securities and Held to Maturity Securities Accumulated Gross Unrealized Gain Before Tax Available for sale securities and held to maturity securities accumulated gross unrealized gain before tax. Due after ten years Debt Securities, Held-to-Maturity, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 Operating lease right of use asset Deferred Tax Liabilities, Leasing Arrangements Valuation allowance Less: valuation allowance Deferred Tax Assets, Valuation Allowance Liabilities: Liabilities [Abstract] Intercompany interest receivable Intercompany Interest Receivable Intercompany Interest Receivable Investment securities, held-to-maturity, Fair value current Held To Maturity Securities Fair Value Current Held to maturity securities fair value current. Other receivables Increase (Decrease) in Other Receivables Aggregate intrinsic value of warrants exercisable Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Exercisable, Aggregate Intrinsic Value Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other Than Options, Exercisable, Aggregate Intrinsic Value Disclosure of Restrictions on Dividends, Loans and Advances Disclosure [Abstract] Other liabilities, current Other Liabilities, Current 2021 Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Accrued retrospective premiums Accrued Retrospective Premiums Current Accrued retrospective premiums. Business combination, proceeds from private placement Business Combination Proceeds From Private Placement Business Combination Proceeds From Private Placement Health insurance industry fee Effective Income Tax Rate Reconciliation, Health Insurance Industry Fee, Amount Effective Income Tax Rate Reconciliation, Health Insurance Industry Fee, Amount Leases [Abstract] Due after ten years Debt Securities, Available-for-Sale, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 10 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 Long-term Debt, Type Long-term Debt, Type [Axis] Total current assets Assets, Current Corporate/Other Corporate and Other [Member] Effects of Reinsurance [Table] Effects of Reinsurance [Table] Debt issuance cost related to convertible securities Effective Income Tax Rate Reconciliation, Debt Issuance Cost, Amount Effective Income Tax Rate Reconciliation, Debt Issuance Cost, Amount Operating loss carryforwards Operating Loss Carryforwards Per share data: Earnings Per Share [Abstract] Schedule I - Condensed Financial Information Condensed Financial Information of Parent Company Only Disclosure [Text Block] Schedule of Deferred Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] U.S. government and government agencies US Government Corporations and Agencies Securities [Member] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Table] Total Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Amortized Cost Eligibility for vesting period Share-based Compensation Arrangement by Share-based Payment Award, Eligibility For Vesting Period Share-based Compensation Arrangement by Share-based Payment Award, Eligibility For Vesting Period Entity Filer Category Entity Filer Category Common stock Common Stock [Member] Meals and entertainment Effective Income Tax Rate Reconciliation, Nondeductible Expense, Meals and Entertainment, Amount Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract] Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract] Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract] Debt Securities, Held-to-maturity, Maturity, Amortized Cost, Net [Abstract] Derivative liabilities Derivative Financial Instruments, Liabilities [Member] Preferred stock conversion Temporary Equity, Value, Conversion Of Convertible Securities Temporary Equity, Value, Conversion Of Convertible Securities Issuance of noncontrolling interest Proceeds from (Payments to) Noncontrolling Interests Leasehold improvements Leasehold Improvements [Member] Property Subject to or Available for Operating Lease Property Subject to or Available for Operating Lease [Domain] Temporary Equity Disclosure [Abstract] Maximum common stock reserved, threshold percentage Common Stock, Capital Shares Reserved For Future Issuance, Threshold Percentage Common Stock, Capital Shares Reserved For Future Issuance, Threshold Percentage Revision of Prior Period Revision of Prior Period [Domain] Initial obligation interest rate Debt Instrument, Interest Rate, Stated Percentage Right-of-use assets obtained in exchange for lease liabilities Lease Obligation Incurred Common Class A Common Class A [Member] Supplemental disclosure of non-cash investing and financing activities Noncash Investing and Financing Items [Abstract] Maximum percentage deviation of Performance Year Benchmark Direct Contracting, Risk-Mitigation, Maximum Percentage Of Performance Year Benchmark Direct Contracting, Risk-Mitigation, Maximum Percentage Of Performance Year Benchmark Stock issuance for exercise of stock options, net of early exercise liability (in shares) Number of options, Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Net increase (decrease) in cash and cash equivalents Net increase (decrease) in cash and cash equivalents Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Acquisition Business Combination Business Combination Disclosure [Text Block] Stock options Share-based Payment Arrangement, Option [Member] Investment securities, available-for sale, Amortized cost current Debt Securities, Available-for-sale, Amortized Cost, Current Claims incurred, gross Policyholder Benefits and Claims Incurred, Direct Investment securities, available-for-sale: Debt Securities, Available-for-sale [Abstract] Accrued retrospective premiums Increase (Decrease) in Unearned Premiums Condensed Financial Information Disclosure [Abstract] Subsequent Events [Abstract] Treasury stock, shares held (in shares) Treasury Stock, Shares Sale of Stock Sale of Stock [Domain] Other than temporary impairment losses Other than Temporary Impairment Losses, Investments Ownership [Domain] Ownership [Domain] 2025 Long-Term Debt, Maturity, Year Five Cash paid during the year for interest Interest Paid, Excluding Capitalized Interest, Operating Activities Options to purchase common stock Options To Purchase Common Stock [Member] Options To Purchase Common Stock. Debt Securities, Available-for-sale, Amortized Cost [Abstract] Debt Securities, Available-for-sale, Amortized Cost [Abstract] Total stockholders’ deficit Beginning balance Ending balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Organization and operations Organization and Operations Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Additional paid-in capital Additional Paid in Capital Total revenues Revenues Revenues Current year Current Year Claims and Claims Adjustment Expense Class of Stock Class of Stock [Axis] Summary of Weighted Average Grant Date Fair Value of Performance Restricted Stock Units Share-based Payment Arrangement, Performance Shares, Outstanding Activity [Table Text Block] Employer discretionary contribution amount Defined Contribution Plan, Employer Discretionary Contribution Amount Accounting Standards Update and Change in Accounting Principle [Table] Accounting Standards Update and Change in Accounting Principle [Table] Total liabilities at fair value Total liabilities at fair value Financial and Nonfinancial Liabilities, Fair Value Disclosure Net loss per share attributable to common shareholders - diluted (in dollars per share) Net (loss) income per share attributable to common stockholders - diluted (in dollars per share) Earnings Per Share, Diluted Operating loss carryforwards, subject to expiration Deferred Tax Assets, Operating Loss Carryforwards, Subject to Expiration Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Redemption price per warrant (in dollars per share) Class Of Warrant Or Right Redemption Price Of Warrants Or Rights The price at which each warrant can be redeemed. Goodwill and other intangible assets Goodwill and Intangible Assets, Policy [Policy Text Block] Montgomery Leases Montgomery Leases [Member] Montgomery leases member Depreciation expense Depreciation Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Entity Emerging Growth Company Entity Emerging Growth Company Other intangible assets Indefinite-lived Intangible Assets (Excluding Goodwill) Deferred expense Deferred Income Tax Expense (Benefit) Healthcare receivables Healthcare Receivables Account Receivables [Text Block] Account Receivables Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Exercised Claims incurred, ceded Policyholder Benefits and Claims Incurred, Ceded Maximum Maximum [Member] Capital contribution for extinguishment of debt Capital Contribution for Extinguishment of Debt Capital contribution for extinguishment of debt. Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Noncontrolling interest Noncontrolling Interest [Member] Stock based compensation Deferred Tax Assets, Tax Deferred Expense, Compensation and Benefits, Share-based Compensation Cost Net realized gains on investment securities Gain (Loss) on Investments Incurred related to: Liability for Unpaid Claims and Claims Adjustment Expense, Incurred Claims [Abstract] Effective tax rate Effective Income Tax Rate Reconciliation, Percent Total Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, Fair Value Gross unrealized losses Available for sale Securities and Held to Maturity Securities Accumulated Gross Unrealized Loss before Tax Available for sale securities and held to maturity securities accumulated gross unrealized loss before tax. Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Warrants payable Warrants outstanding Warrants and Rights Outstanding Investments Investments [Domain] Condensed Balance Sheets (Parent Company) Condensed Balance Sheet [Table Text Block] Operating lease liabilities Increase (Decrease) In Operating Lease Liabilities Increase (Decrease) In Operating Lease Liabilities PIPE Investment Private Placement [Member] Premium deficiency reserve Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals, Unearned Premiums Reserve Organization, Consolidation and Presentation of Financial Statements [Abstract] Schedule of Activity in the Liability for Unpaid Claims and Claims Adjustment Expense Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block] Equipment Equipment [Member] Debt instrument, accrued interest Debt Instrument, Increase, Accrued Interest Fair Value Measurement Inputs and Valuation Techniques [Line Items] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Reinsurance premium payable Prepaid Reinsurance Premiums Segment information Segment Reporting, Policy [Policy Text Block] Schedule of Gross Unrealized Losses and Fair Value For Fixed Maturities In a Continuous Unrealized Loss Position Schedule of Unrealized Loss on Investments [Table Text Block] Document Type Document Type Options granted (in shares) Number of options, Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Treasury Stock Treasury Stock [Member] Gross balance, beginning of year Gross balance, end of year Liability for Claims and Claims Adjustment Expense Reconciliation of Incurred and Paid Claims Development Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Table Text Block] Accounts payable and accrued expenses Increase (Decrease) in Accounts Payable and Accrued Liabilities Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract] Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract] Segments [Axis] Segments [Axis] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] SEC Schedule, 12-09, Valuation Allowances and Reserves [Domain] Rebate Receivables Rebate Receivables [Member] Rebate receivables. Level 3 Fair Value, Inputs, Level 3 [Member] Debt Instrument, Interest Rate Period Two Debt Instrument, Interest Rate Period Two [Member] Debt Instrument, Interest Rate Period Two Leases Lessee, Leases [Policy Text Block] Other Current Assets Other Current Assets [Member] Effects of Reinsurance Effects of Reinsurance [Table Text Block] 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 Rogue Trading Rogue Trading [Member] Rogue Trading Convertible, stock price trigger, value in calculation Debt Instrument, Convertible, Stock Price Trigger, Value in Calculation Debt Instrument, Convertible, Stock Price Trigger, Value in Calculation Other liabilities Increase (Decrease) in Other Noncurrent Liabilities Derivative liabilities Derivative Liabilities Derivative Instruments and Hedging Activities Disclosure [Text Block] Acquisition costs amortization Deferred Tax Assets, Acquisition Costs Amortization Deferred Tax Assets, Acquisition Costs Amortization Premium deficiency reserve (benefit) expense Premium deficiency reserve expense (benefit) Premium Deficiency Testing Expense (Benefit), Long-Duration Contract, Amount Premium Deficiency Testing Expense (Benefit), Long-Duration Contract, Amount Redemption price (in dollars per share) Temporary Equity, Redemption Price Per Share Proceeds from maturities of investment securities Proceeds from maturities of investment securities Proceeds From Maturity Of Short-Term Investments And Debt Securities, Available-for-sale Proceeds From Maturity Of Short-Term Investments And Debt Securities, Available-for-sale Proceeds from issuance of convertible securities Proceeds from Convertible Debt Discount factor Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Discount for Postvesting Restrictions Discount rate Share-based Compensation Arrangement by Share-based Payment Award, Discount from Market Price, Purchase Date Payment for the redemptions of Public Warrants Payments for redemption of warrants Payments for Repurchase of Warrants Cash paid during the year for health insurance industry fee HIF paid Health Insurance Industry Fee Expense Health Insurance Industry Fee Expense Loss from operations Operating Income (Loss) Charge to account for dilution Percentage Charge For Security Conversion Under Merger Agreement Percentage charge for security conversion under merger agreement Surety bonds and deposits Increase (Decrease) in Deposit Assets Beneficial conversion feature Debt Instrument, Convertible, Beneficial Conversion Feature Annuity reserve, fully ceded to third party Annuity Reserve, Fully Coinsured to Third Party Annuity Reserve, Fully Coinsured to Third Party Principal borrowed Securities Borrowed Exercise price, percentage of fair value of common stock Share-based Compensation Arrangement by Share-based Payment Award, Exercise Price Cap, Percentage Of Fair Value Share-based Compensation Arrangement by Share-based Payment Award, Exercise Price Cap, Percentage Of Fair Value Gain on derivative liabilities Derivative, Gain on Derivative Exercised (in shares) Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Exercised In Period Share based compensation arrangement by share based payment award equity instruments other than options exercised in period. Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Commitments and contingencies (Note 22) Commitments and Contingencies Commitments and Contingencies Employer maximum annual contributions per employee, percent Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent Investment securities, available-for-sale, at fair value (Amortized cost: 2020: $53,953; 2019: $56,382) Debt Securities, Available-for-sale, Noncurrent Debt Securities, Available-for-sale, Noncurrent Tranche Two Share-based Payment Arrangement, Tranche Two [Member] Buyback and subsequent cancellation of common stock Treasury stock acquired Payments for Repurchase of Common Stock Investments in consolidated subsidiaries Proceeds From (Repayments To) Consolidated Subsidiaries Proceeds From (Repayments To) Consolidated Subsidiaries Vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Office furniture and fixtures Furniture and Fixtures [Member] Entity Address, State or Province Entity Address, State or Province Convertible debt, extension period upon new security holder Debt Instrument, Convertible, Extension Period Upon New Security Holder Debt Instrument, Convertible, Extension Period Upon New Security Holder Income tax provision at federal statutory rate (21%) Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount 2020 Convertible Note Two Thousand Twenty Convertible Note [Member] Two thousand twenty convertible note member. Reinsurance Reinsurance Accounting Policy [Policy Text Block] Sublease income Sublease Income Schedule of Cash and Cash Equivalents [Table] Schedule of Cash and Cash Equivalents [Table] Convertible preferred shares issued (in shares) Preferred Stock Issued (in shares) Preferred stock, shares issued (in shares) Temporary Equity, Shares Issued Accumulated deficit Retained Earnings (Accumulated Deficit) Operating lease right-of-use assets Operating lease ROU assets Operating Lease, Right-of-Use Asset Prepaid and accrued expenses Deferred Tax Assets, Prepaid and Accrued Expenses Deferred Tax Assets, Prepaid and Accrued Expenses Allowances for uncollectible reinsurance recoverable Reinsurance Recoverable, Allowance for Credit Loss Capital contribution for extinguishment of debt Gain (Loss) on Extinguishment of Debt Unamortized discount Debt Instrument, Unamortized Discount Cash consideration received from business combination Business Combination Cash Consideration Received Business Combination Cash Consideration Received Warrants payable Warrants Payable Warrants Payable Disclosure Text Block [Text Block] Warrants payable disclosure text block CarePoint Health Contract Care Point Health Contract [Member] CarePoint Health Contract Deposits with various states and regulatory bodies Deposits Unused lines of Credit Unused lines of Credit [Member] 2014 Plan Two Thousand Fourteen Equity Incentive Plan [Member] 2014 Equity Incentive Plan member. Due after five years through ten years Debt Securities, Held-to-Maturity, Amortized Cost, Maturity, Allocated and Single Maturity Date, after Year 5 Through 10 Fair Value by Liability Class Fair Value by Liability Class [Domain] Federal income taxes Income Tax, Policy [Policy Text Block] Greater than 12 months, Unrealized loss Debt Securities Available for Sale and Held to Maturity Continuous Unrealized Loss Position 12 Months or Longer Accumulated Loss Debt securities available for sale and held to maturity continuous unrealized loss position 12 months or longer accumulated loss. Total lease cost Lease, Cost Stock options exercisable (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Deferred financing costs Payments of Financing Costs Common Stock Issuable Upon Conversion (in shares) Preferred Stock, Convertible, Shares Issuable Preferred Stock, Convertible, Shares Issuable Liability Class Liability Class [Axis] Number of warrants exercised for cash (in shares) Class Of Warrant Or Right, Exercises Class Of Warrant Or Right, Exercises Amount drawn from loan facility Amount Drawn Under Loan Facility Amount drawn under loan facility Stock-based compensation APIC, Share-based Payment Arrangement, Increase for Cost Recognition Beginning stock price (in dollars per share) Share price (in dollars per share) Share Price Investment securities Investment, Policy [Policy Text Block] Investment securities, held-to-maturity, Fair value noncurrent Held To Maturity Securities Fair Value Non Current Held to maturity securities fair value non current. Business Acquisition Business Acquisition [Axis] Geographical [Domain] Geographical [Domain] Convertible securities, expected term Convertible Securities, Expected Term Convertible Securities, Expected Term Short-duration Insurance Contracts, Claims Development [Table] Short-duration Insurance Contracts, Claims Development [Table] Intercompany payable Increase (Decrease) In Intercompany Payable Increase (Decrease) In Intercompany Payable PRSUs Performance Restricted Stock Units [Member] Performance restricted stock units. Estimated fair value and carrying value of convertible securities Convertible Debt Fair Value and Carrying Value Disclosures Convertible debt fair value and carrying value disclosures. Interest on convertible securities discount Effective Income Tax Rate Reconciliation, Interest On Convertible Securities Discount, Amount Effective Income Tax Rate Reconciliation, Interest On Convertible Securities Discount, Amount Convertible Debt Securities Convertible Debt Securities [Member] Reinsurance Reinsurance [Text Block] Due after ten years Debt Securities, Available-for-Sale, Fair Value, Maturity, Allocated and Single Maturity Date, after Year 10 Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Non Convertible Notes Payable Non Convertible Notes Payable [Member] Non convertible notes payable member U.S. government and government agencies US Government Agencies Debt Securities [Member] Embedded derivative, discount rate Embedded Derivative, Discount Rate Embedded Derivative, Discount Rate Beneficial conversion feature Adjustments to Additional Paid in Capital, Convertible Debt with Conversion Feature Derivative liabilities Derivative Liability, Noncurrent Net balance, beginning of year Net balance, end of year Unpaid claims Liability for Unpaid Claims and Claims Adjustment Expense, Net Business Combinations [Abstract] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Unamortized debt issuance cost Unamortized Debt Issuance Expense Weighted average remaining contractual term of stock options exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Issuance of common stock, net of early exercise liability Proceeds from issuance of common stock Proceeds from Issuance of Common Stock Cumulative net paid claims Less: cumulative paid claims, net Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net Common stock. conversion basis Common Stock, Conversion Basis Proceeds from maturities of available-for-sale securities Proceeds from Sale and Maturity of Debt Securities, Available-for-sale Schedule of Basic and Diluted Loss Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Exercised (in dollars per share) Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Exercised Weighted Average Grant Date Fair Value Share based compensation arrangement by share based payment award equity instruments other than options exercised weighted average grant date fair value. 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