Investments, Debt and Equity Securities [Abstract] Consolidated Investments Available-for-sale Securities [Table Text Block] Amortized Cost and Fair Value of Fixed Maturity Available-for-Sale Securities Investments Classified by Contractual Maturity Date [Table Text Block] Fair Value and Gross Unrealized Losses of Available-for-Sale-Securities Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Table Text Block] Reconciliation of Other-than-Temporary Impairment on Fixed Maturity Other than Temporary Impairment, Credit Losses Recognized in Earnings [Table Text Block] Schedule of Accounts, Notes, Loans and Financing Receivable Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Schedule of Investment in Mortgage Loans by Loan to Value and Debt Service Coverage Ratios Schedule of Investment in Mortgage Loans by Loan to Value and Debt Service Coverage Ratios [Table Text Block] Tabular disclosure of investments in loans separated by loan to value (LTV) and debt service coverage ratios (DSCR). Past Due Financing Receivables Financing Receivable, Past Due [Table Text Block] Net Investment Income Investment Income [Table Text Block] Net Investment Gains Gain (Loss) on Securities [Table Text Block] Schedule of Realized Gain (Loss) Schedule of Realized Gain (Loss) [Table Text Block] Quarterly Financial Information Disclosure [Abstract] Quarterly Results (Unaudited) Quarterly Financial Information [Text Block] Condensed Financial Information Disclosure [Abstract] Condensed Cash Flow Statement [Table] Condensed Cash Flow Statement [Table] Scenario [Axis] Scenario [Axis] Scenario [Domain] Scenario [Domain] Debt Security Category [Axis] Debt Security Category [Axis] Other than Temporary Impairment, Credit Losses Recognized in Earnings, Categories of Investments [Domain] Other than Temporary Impairment, Credit Losses Recognized in Earnings, Categories of Investments [Domain] Equity securities Equity Securities [Member] Consolidated Entities [Axis] Consolidated Entities [Axis] Consolidated Entities [Domain] Consolidated Entities [Domain] Parent Company Parent Company [Member] Condensed Cash Flow Statements, Captions [Line Items] Condensed Cash Flow Statements, Captions [Line Items] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Adjustments to reconcile net income to net cash (used in) provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Realized capital and other gains on investments Net Recognized Gains On Investments And Derivatives This item represents the net total realized and unrealized gain (loss) included in earnings for the period as a result of selling or holding marketable securities categorized as trading, available-for-sale, or held-to-maturity, including the unrealized holding gain (loss) of held-to-maturity securities transferred to the trading security category and the cumulative unrealized gain (loss) which was included in other comprehensive income (a separate component of shareholders' equity) for available-for-sale securities transferred to trading securities during the period. Additionally, this item would include any gains (losses) realized during the period from the sale of investments accounted for under the cost method of accounting and losses recognized for other than temporary impairments (OTTI) of the subject investments. Equity in net income of subsidiaries Equity in Net Income of Subsidiary Equity in Net Income of Subsidiary Stock based compensation Share-based Payment Arrangement, Noncash Expense Other assets and other liabilities Increase (Decrease) in Other Operating Assets and Liabilities, Net Net cash provided by (used in) operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Proceeds from available-for-sale investments, sold, matured or repaid: Proceeds from Sale, Maturity and Collection of Investments Cost of available-for-sale investments: Payments to Acquire Investments Net cash provided by (used in) investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Cash paid upon warrant tender and capitalized warrant tender costs Proceeds from Issuance Initial Public Offering Dividends payments Payments of Dividends Treasury stock Payments for Repurchase of Common Stock Distribution to CF Bermuda and subsidiaries Distribution to subsidiaries Distribution to subsidiaries Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities Change in cash & cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash & cash equivalents, beginning of period Cash and Cash Equivalents, at Carrying Value Cash & cash equivalents, end of period Share-based Payment Arrangement [Abstract] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Award Type [Domain] Award Type [Domain] Phantom Share Units (PSUs) Phantom Share Units (PSUs) [Member] Plan Name [Axis] Plan Name [Axis] Plan Name [Domain] Plan Name [Domain] Management Incentive Plan Management Incentive Plan [Member] Management Incentive Plan [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] beginning of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Forfeited or expired (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period end of period (in shares) Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Weighted Average Grant [Roll Forward] Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Weighted Average Grant [Roll Forward] Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Weighted Average Grant [Roll Forward] beginning of period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Granted (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Vested (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Forfeited or expired (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value end of period (in dollars per share) Income Tax Disclosure [Abstract] Tax Credit Carryforward [Table] Tax Credit Carryforward [Table] Tax Credit Carryforward [Line Items] Tax Credit Carryforward [Line Items] United States Income (Loss) from Continuing Operations before Income Taxes, Domestic Outside the United States Income (Loss) from Continuing Operations before Income Taxes, Foreign Income (loss) before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Debt Disclosure [Abstract] Debt Debt Disclosure [Text Block] Schedule II - Condensed Financial Information Condensed Financial Information of Parent Company Only Disclosure [Text Block] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Financial Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Insurance [Abstract] Statutory Accounting Practices Disclosure Statutory Accounting Practices Disclosure [Table Text Block] Equity [Abstract] Equity Stockholders' Equity Note Disclosure [Text Block] Fair Value Disclosures [Abstract] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] Preferred shares reimbursement feature embedded derivative Embedded Derivatives In Preferred Equity Reimbursement [Member] Embedded Derivatives In Preferred Equity Reimbursement [Member] Segments [Axis] Segments [Axis] Segments [Domain] Segments [Domain] FSRC FSRC and F&G Re [Member] FSRC and F&G Re [Member] Equity Components [Axis] Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Preferred Stock Preferred Stock [Member] Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Market Approach Valuation, Market Approach [Member] Income Approach Valuation Technique Valuation, Income Approach [Member] Financial Instrument [Axis] Financial Instrument [Axis] Financial Instruments [Domain] Financial Instruments [Domain] Asset-backed securities Asset-backed Securities [Member] Other invested assets Other Invested Assets [Member] Other Invested Assets [Member] 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] Preferred Stock, Call Features, Minimum Term Preferred Stock, Call Features, Minimum Term Preferred Stock, Call Features, Minimum Term Preferred Stock, Dividend Rate, Percentage, Less Than Par Preferred Stock, Dividend Rate, Percentage, Less Than Par Preferred Stock, Dividend Rate, Percentage, Less Than Par Change in fair value of other derivatives and embedded derivatives Derivative, Gain (Loss) on Derivative, Net Derivative, strike price Derivative, Price Risk Option Strike Price Assets, net transfer in (out) of Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net Undiscounted Cash flows used in fair value measurement Undiscounted Cash flows used in fair value measurement Undiscounted Cash flows used in fair value measurement Assets and Liabilities Carrying at Fair Value on Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Schedule of Unobservable Inputs Used for Level Three Fair Value Measurements of Financial Instruments on Recurring Basis Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Changes in Fair Value of Financial Instruments - Assets Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Changes in Fair Value of Financial Instruments - Liabilities Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Schedule of Net Asset Value Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table Text Block] Gross Transfers Into and Out of Certain Fair Value Levels by Asset Class Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block] Related Party Transactions [Abstract] Schedule of Related Party Transactions Schedule of Related Party Transactions [Table Text Block] Fair Value of Financial Instruments Fair Value Disclosures [Text Block] Investments, All Other Investments [Abstract] Statement [Table] Statement [Table] Credit Quality [Axis] Credit Quality [Axis] Credit Quality [Axis] Credit Quality [Domain] Credit Quality [Domain] [Domain] for Credit Quality [Axis] Performing Performing [Member] Performing [Member] Non-performing Non-performing [Member] Non-performing [Member] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Axis] Financing Receivable Portfolio Segment [Domain] Financing Receivable Portfolio Segment [Domain] Total Mortgage Loans Total Mortgage Loans [Member] Total Mortgage Loans [Member] Residential Portfolio Segment Residential Portfolio Segment [Member] Geographical [Axis] Geographical [Axis] Geographical [Domain] Geographical [Domain] California CALIFORNIA Florida FLORIDA New Jersey NEW JERSEY All Other States All Other States [Member] All Other States [Member] Mortgage loans Commercial Mortgage Loan [Member] Commercial Mortgage Loan [Member] Residential Mortgage Residential Mortgage [Member] Statement [Line Items] Statement [Line Items] Loans Receivable, Gross, Residential, Mortgage Loans Receivable, Gross, Residential, Mortgage Loans Receivable, Gross, Residential, Mortgage Loans and Leases Receivable, Allowance Loans and Leases Receivable, Allowance Residential Mortgage Receivable, Percentage of Total Residential Mortgage Receivable, Percentage of Total Percentage of the total residential loan portfolio Goodwill and Intangible Assets Disclosure [Abstract] Information Regarding Intangible Assets, VOBA and DAC Schedule of Finite-Lived Intangible Assets [Table Text Block] Estimated Amortization Expense for VOBA in Future Fiscal Periods Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] FGL Incentive Plan FGL Incentive Plan [Member] FGL Incentive Plan [Member] Restricted shares Restricted Stock Units (RSUs) [Member] Shares: Vested (in shares) Weighted Average Grant Date Fair Value (in dollars per share): Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract] Average grant date fair value, Granted (in dollars per share) Average grant date fair value, Exercised (in dollars per share) Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility Revolving Credit Facility [Member] Debt Instrument [Line Items] Debt Instrument [Line Items] Debt Instrument, Face Amount Debt Instrument, Face Amount Revolving credit facility Long-term Line of Credit Interest expense excluding amortization Interest Expense, Debt, Excluding Amortization Amortization of debt issuance costs Amortization of Debt Issuance Costs Gain on Extinguishment of Debt Gain on Extinguishment of Debt Gain on Extinguishment of Debt Gain (Loss) on Extinguishment of Debt Gain (Loss) on Extinguishment of Debt Organization, Consolidation and Presentation of Financial Statements [Abstract] Liabilities for Guarantees on Long-Duration Contracts [Table] Liabilities for Guarantees on Long-Duration Contracts [Table] Product and Service [Axis] Product and Service [Axis] Product and Service [Domain] Product and Service [Domain] Fixed indexed annuities Fixed Index Annuity [Member] Fixed index annuity. Fixed rate annuities Fixed Rate Annuity [Member] Fixed Rate Annuity [Member] Single premium immediate annuities Single Premium Immediate Annuity [Member] Single Premium Immediate Annuity [Member] Traditional life insurance premiums Life Insurance Product Line [Member] Liabilities for Guarantees on Long-Duration Contracts [Line Items] Liabilities for Guarantees on Long-Duration Contracts [Line Items] Premiums and annuity deposits, net of coinsurance, not included as revenue, excluding traditional premiums Premium and Annuity Deposits, Excluding Traditional Premiums, Net of Coinsurance Premium and Annuity Deposits, Excluding Traditional Premiums, Net of Coinsurance Other Liabilities Disclosure [Abstract] Amounts payable for investment purchases Investment Purchases not Settled Liability Investment Purchases not Settled Liability Retained asset account Retained Asset Account Retained Asset Account Option collateral liabilities Derivative Futures Liability Derivative Futures Liability Remittances and items not allocated Remittances and Items not Allocated Remittances and Items not Allocated Accrued expenses Accrued Expenses Accrued expenses. Deferred reinsurance revenue Deferred Revenue Unearned revenue liability Unearned Revenue, Net Unearned Revenue, Net Preferred shares reimbursement feature embedded derivative Embedded Derivative Preferred Share Reimbursement Embedded Derivative Preferred Share Reimbursement Negative cash liability Negative Cash Liability Negative Cash Liability Commissions payable Commissions Payable Commissions Payable Funds withheld embedded derivative Funds Withheld Embeddded Derivative Funds Withheld Embeddded Derivative Rabbi trust investment Rabbi Trust Investment Rabbi Trust Investment Other Other Sundry Liabilities Total Other Liabilities Other Liabilities Other Liabilities Disclosure [Text Block] Cover page. Entities [Table] Entities [Table] Class of Stock [Axis] Class of Stock [Axis] Class of Stock [Domain] Class of Stock [Domain] Ordinary shares, par value $.0001 per share Common Stock [Member] Warrants to purchase ordinary shares Warrant [Member] Entity Information [Line Items] Entity Information [Line Items] Document Type Document Type Document Annual Report Document Annual Report Document Period End Date Document Period End Date Document Transition Report Document Transition Report Entity File Number Entity File Number Entity Registrant Name Entity Registrant Name Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Tax Identification Number Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Entity Address, City or Town Entity Address, City or Town Entity Address, Country Entity Address, Country Entity Address, Postal Zip Code Entity Address, Postal Zip Code City Area Code City Area Code Local Phone Number Local Phone Number Title of 12(b) Security Title of 12(b) Security Trading Symbol Trading Symbol Security Exchange Name Security Exchange Name Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Interactive Data Current Entity Interactive Data Current Entity Filer Category Entity Filer Category Entity Small Business Entity Small Business Entity Emerging Growth Company Entity Emerging Growth Company Entity Shell Company Entity Shell Company Entity Public Float Entity Public Float Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Amendment Flag Amendment Flag Document Fiscal Year Focus Document Fiscal Year Focus Document Fiscal Period Focus Document Fiscal Period Focus Entity Central Index Key Entity Central Index Key Current Fiscal Year End Date Current Fiscal Year End Date Schedule of Available-for-sale Securities [Table] Schedule of Available-for-sale Securities [Table] Variable Interest Entities [Axis] Variable Interest Entities [Axis] Variable Interest Entity, Classification [Domain] Variable Interest Entity, Classification [Domain] Variable Interest Entity, Primary Beneficiary [Member] Variable Interest Entity, Primary Beneficiary [Member] Mortgage-backed Securities, Issued by Private Enterprises Mortgage-backed Securities, Issued by Private Enterprises [Member] Investment Issuer [Axis] Investment Issuer [Axis] Investment Issuer [Domain] Investment Issuer [Domain] BISA Co-Invest Fund II L.P. [Member] BISA Co-Invest Fund II L.P. [Member] BISA Co-Invest Fund II L.P. [Member] Crescent Capital BDC Inc. Crescent Capital BDC Inc. [Member] Crescent Capital BDC Inc. [Member] Golub Capital Partners 10, L.P. Golub Capital Partners 10, L.P. [Member] Golub Capital Partners 10, L.P. [Member] Other Commitments [Axis] Other Commitments [Axis] Other Commitments [Domain] Other Commitments [Domain] Commitment to Invest Commitment to Invest [Member] Commitment to Invest [Member] Available-for-sale Securities Available-for-sale Securities [Member] Debt Securities, Available-for-sale [Line Items] Debt Securities, Available-for-sale [Line Items] Unrealized Gain Related To Non Credit Portion Of Other Than Temporary Impairments Included In Accumulated Other Comprehensive Income Unrealized Gain Related To Non Credit Portion Of Other Than Temporary Impairments Included In Accumulated Other Comprehensive Income Unrealized gain related to non credit portion of other than temporary impairments included in accumulated other comprehensive income. Unrealized losses related to non-credit portion of OTTI included in AOCI Unrealized Losses Related To Non Credit Portion Of Other Than Temporary Impairments Included In Accumulated Other Comprehensive Income Unrealized losses related to non credit portion of other than temporary impairments included in accumulated other comprehensive income. Assets held by insurance regulators Assets Held by Insurance Regulators FHLB collateral pledged Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged Available for sale depressed securities fair value disclosure Available For Sale Depressed Securities Fair Value Disclosure Available for sale depressed securities fair value disclosure. Percentage of available for sale depressed securities above amortized cost Percentage Of Available For Sale Depressed Securities Above Amortized Cost Percentage of available for sale depressed securities above amortized cost. Ratio of performing loans to all loans Loans and Leases Receivable, Ratio of Performing Loans to All Loans Percentage of performing loans to total loan portfolio. Loan to value, threshold Loan to Value, Maximum Threshold Highest loan to value ratio present in the loan portfolio. Number of delinquent CMLs Financing Receivable, Number of Loans Past Due Number of loans currently past due. Impaired loans, number Loans and Leases Receivable, Impaired, Number Loans and Leases Receivable, Impaired, Number Unfunded investment commitment Other Commitment Other Investments Other Investments Commercial Mortgage Receivable, Percentage of Total Earnings Per Share [Abstract] Summary of Basic and Diluted EPS Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] SEC Schedule, 12-17, Insurance Companies, Reinsurance [Abstract] Schedule IV - Reinsurance SEC Schedule, 12-17, Insurance Companies, Reinsurance [Text Block] Income Taxes Income Tax Disclosure [Text Block] Accounting Policies [Abstract] Schedule of Federal Home Loan Bank Advances, by Branch of FHLB Bank [Table] Schedule of Federal Home Loan Bank Advances, by Branch of FHLB Bank [Table] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Net investment (losses) gains Net Realized Investment Gains [Member] Net Realized Investment Gains [Member] Benefits and Other Changes in Policy Reserves [Member] Benefits and Other Changes in Policy Reserves [Member] Benefits and Other Changes in Policy Reserves [Member] Amortization of Intangible Assets [Member] Amortization of Intangible Assets [Member] Amortization of Intangible Assets [Member] income tax expense [Member] income tax expense [Member] income tax expense [Member] Balance Sheet Location [Axis] Balance Sheet Location [Axis] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Contractholder funds Contract Holder Funds [Member] Indefinite-lived Intangible Assets [Member] Indefinite-lived Intangible Assets [Member] Deferred Tax Asset [Domain] Deferred Tax Asset [Domain] Total fixed maturities Fixed Maturities [Member] FSRC FSRC [Member] FSRC [Member] Series A Cumulative Preferred Stock Series A Cumulative Preferred Stock [Member] Series A Cumulative Preferred Stock [Member] Series B Cumulative Preferred Stock Series B Cumulative Preferred Stock [Member] Series B Cumulative Preferred Stock [Member] Lender Name [Axis] Lender Name [Axis] Line of Credit Facility, Lender [Domain] Line of Credit Facility, Lender [Domain] Royal Bank Of Canada Royal Bank Of Canada [Member] Royal Bank Of Canada [Member] Indexed Universal Life Indexed Universal Life [Member] Indexed Universal Life [Member] Life Contingent Payout Annuity Life Contingent Payout Annuity [Member] Life Contingent Payout Annuity [Member] Statistical Measurement [Axis] Statistical Measurement [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] Minimum Minimum [Member] Maximum Maximum [Member] Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items] Quantifying Misstatement in Current Year Financial Statements, Amount Quantifying Misstatement in Current Year Financial Statements, Amount New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification Available-for-sale Securities Available-for-sale Securities Stock Issued During Period, Shares, New Issues Stock Issued During Period, Shares, New Issues Future policy benefits, including $1,953 and $725 at fair value at December 31, 2019 and December 31, 2018, respectively Liability for Future Policy Benefit, before Reinsurance senior unsecured revolving credit facility senior unsecured revolving credit facility senior unsecured revolving credit facility Interest crediting rates associated with subsidiaries Interest Crediting Rates for Funds at Subsidiaries Interest Crediting Rates for Funds at Subsidiaries Cash and cash equivalents Cash Equivalents, at Carrying Value Reinsurance arrangement in percentage Reinsurance Arrangement In Percentage Reinsurance Arrangement In Percentage Unrecognized tax benefits Unrecognized Tax Benefits Estimated investment yield Long-Duration Contracts, Assumptions by Product and Guarantee, Estimated Average Investment Yield Reserves for funding agreements Reserves for Contractholder Funding Agreement Reserves for Contractholder Funding Agreement Debt term Debt Instrument, Term Preferred stock dividend rate Preferred Stock, Dividend Rate, Percentage Of Par Preferred Stock, Dividend Rate, Percentage Of Par Federal home Loan Bank, Advances, General Debt Obligations, Disclosures, Cash and Collateral Pledged Federal home Loan Bank, Advances, General Debt Obligations, Disclosures, Cash and Collateral Pledged Federal home Loan Bank, Advances, General Debt Obligations, Disclosures, Cash and Collateral Pledged Reinsurance Recoverables, Gross Reinsurance Recoverables, Gross Proceeds from Mortgage Deposits Proceeds from Mortgage Deposits Other Assets, Miscellaneous Other Assets, Miscellaneous Net income (loss) Less Preferred stock dividend Preferred Stock Dividends, Income Statement Impact Net Income (Loss) from Continuing Operations Available to Common Shareholders, Basic Net Income (Loss) from Continuing Operations Available to Common Shareholders, Basic Weighted-average common shares outstanding - basic (in shares) Weighted Average Number of Shares Outstanding, Basic Dilutive effect of unvested restricted stock and unvested performance restricted stock (in shares) Incremental Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock Dilutive effect of stock options (in shares) Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements Weighted-average shares outstanding - diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Net income (loss) per common share: Earnings Per Share, Basic and Diluted [Abstract] Basic (in USD per share) Earnings Per Share, Basic Diluted (in USD per share) Earnings Per Share, Diluted Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table] Antidilutive Securities [Axis] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Restricted Stock [Member] Restricted Stock [Member] Stock Option Awards Equity Option [Member] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Common Stock Warrants Outstanding Common Stock Warrants Outstanding Common Stock Warrants Outstanding Antidilutive securities excluded from computation of EPS, less than, amount (shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount VOBA Movement in Present Value of Future Insurance Profits [Roll Forward] VOBA at beginning of period Present Value of Future Insurance Profits, Net Deferrals Present Value of Future Insurance Profits, Additions Present Value of Future Insurance Profits, Additions Amortization Present Value of Future Insurance Profits, Amortization Expense Interest Present Value Of Future Insurance Profits Periodic Amortization Expense Present Value Of Future Insurance Profits Periodic Amortization Expense Unlocking Present Value of Future Insurance Profits, Unlocking Adjustment Present Value of Future Insurance Profits, Unlocking Adjustment Adjustment for net unrealized investment (gains) losses Present Value of Future Insurance Profits, Unrealized Gain (Loss) on Investment VOBA at end of period DAC Movement Analysis of Deferred Policy Acquisition Costs [Roll Forward] DAC at beginning of period Deferred Policy Acquisition Cost Deferrals Deferred Policy Acquisition Cost, Capitalization Amortization Deferred Policy Acquisition Costs, Amortization Expense Interest Deferred Policy Acquisition Costs, Periodic Amortization Expense Deferred Policy Acquisition Costs, Periodic Amortization Expense Unlocking Deferred Policy Acquisition Costs, Unlocking Adjustment Deferred Policy Acquisition Costs, Unlocking Adjustment Adjustment for net unrealized investment (gains) losses Deferred Policy Acquisition Cost, Unrealized Investment Gain (Loss) DAC at end of period Movement in Deferred Sales Inducements [Roll Forward] Movement in Deferred Sales Inducements [Roll Forward] DSI at beginning of period Deferred Sale Inducement Cost Deferrals Deferred Sale Inducement Cost, Capitalization Amortization Deferred Sales Inducement Cost, Amortization Expense Interest Deferred Sales Inducement Cost, Amortization Expense, Accrued Interest Unlocking Deferred Sales Inducement Cost, Unlocking Adjustment Deferred Sales Inducement Cost, Unlocking Adjustment Adjustment for net unrealized investment (gains) losses Deferred Sales Inducement Cost, Unrealized Gain (Loss) on Investment DSI at end of period Total Deferred Policy Acquisition Costs and Present Value of Future Profits [Abstract] Total VOBA, DAC and DSI at beginning of period Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Net Deferrals Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Addition Amortization Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Amortization Interest Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Periodic Amortization Deferred Policy Acquisition Costs and Present Value of Future Insurance Profits, Periodic Amortization Unlocking Deferred Policy Acquisition Costs and Present Value of Future Profits, Unlocking Adjustment Deferred Policy Acquisition Costs and Present Value of Future Profits, Unlocking Adjustment Adjustment for net unrealized investment (gains) losses Deferred Policy Acquisition Costs and Present Value of Future Profits, Unrealized Investment Gain (Loss) Deferred Policy Acquisition Costs and Present Value of Future Profits, Unrealized Investment Gain (Loss) Total VOBA, DAC and DSI at end of period Statement of Financial Position [Abstract] Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Common stock, shares authorized (in shares) Common Stock, Shares Authorized Common stock, shares issued (in shares) Common Stock, Shares, Issued Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Preferred Stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Preferred Stock, shares authorized (in shares) Preferred Stock, Shares Authorized Preferred Stock, shares issued (in shares) Preferred Stock, Shares Issued Preferred Stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Treasury Stock, shares (in shares) Treasury Stock, Shares Fixed maturity securities, available-for-sale, at fair value (amortized cost) Debt Securities, Available-for-sale, Amortized Cost Equity securities, available-for-sale, at fair value (amortized cost) Available-for-sale Equity Securities, Amortized Cost Basis Future policy benefits. at fair value Funds Held Under Reinsurance Agreements, Liability, Fair Value Disclosure Funds Held under Reinsurance Agreements, Liability, Fair Value Disclosure Income Taxes [Table] Income Taxes [Table] Income Taxes [Table] Income Taxes [Line Items] Income Taxes [Line Items] [Line Items] for Income Taxes [Table] Deferred tax assets: Deferred Tax Assets, Gross [Abstract] Net operating loss, credit and capital loss carryforwards Deferred Tax Asset, Net Operating Loss, Credits, and Capital Loss Carryforwards Deferred Tax Asset, Net Operating Loss, Credits, and Capital Loss Carryforwards Insurance reserves and claim related adjustments Deferred Tax Asset, Insurance Reserves and Claim Related Adjustments Deferred Tax Asset, Insurance Reserves and Claim Related Adjustments Unrealized Investment Losses Deferred Tax Assets, Unrealized Losses on Available-for-Sale Securities, Gross Derivatives Deferred Tax Assets, Derivative Instruments Deferred acquisition costs Deferred Acquisition Costs Deferred Acquisition Costs Deferred Tax Assets, Funds Held under Reinsurance Agreements Deferred Tax Assets, Funds Held under Reinsurance Agreements Deferred Tax Assets, Funds Held under Reinsurance Agreements Funds withheld for reinsurance liabilities Funds Held under Reinsurance Agreements, Liability Other Deferred Tax Assets, Other Valuation allowance Deferred Tax Assets, Valuation Allowance Total deferred tax assets Deferred Tax Assets, Net of Valuation Allowance Deferred tax liabilities: Deferred Tax Liabilities, Gross [Abstract] Value of business acquired Deferred Tax Liabilities, Goodwill Unrealized Investment Gains Deferred Tax Liabilities, Unrealized Gains on Available for Sale Investments Deferred Tax Liabilities, Unrealized Gains on Available for Sale Investments Investments Deferred Tax Liabilities, Investments Derivatives Deferred Tax Liabilities, Derivatives Deferred acquisition costs Deferred Tax Liabilities, Deferred Acquisition Cost Deferred Tax Liabilities, Deferred Acquisition Cost Transition reserve on new reserve method Deferred Tax Liabilities, Deferred Expense, Reserves and Accruals Funds held under Reinsurance Agreements Deferred Tax Liabilities, Funds Held Under Reinsurance Agreements Deferred Tax Liabilities, Funds Held Under Reinsurance Agreements Other Deferred Tax Liabilities, Other Total deferred tax liabilities Deferred Tax Liabilities, Gross Net deferred tax assets and (liabilities) Deferred Tax Assets, Net Net deferred tax assets and (liabilities) Deferred Tax Liabilities, Net Basis of Presentation and Nature of Business Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Reinsurance Disclosures [Abstract] Ceded Credit Risk [Table] Ceded Credit Risk [Table] F&G Re [Member] F&G Re [Member] F&G Re [Member] Life and Annuity Insurance Product Line Life and Annuity Insurance Product Line [Member] In-Force Annuity Block [Member] In-Force Annuity Block [Member] In-Force Annuity Block [Member] New Business [Member] New Business [Member] New Business [Member] In-Force FIA [Member] In-Force FIA [Member] In-Force FIA [Member] In-Force Deferred Annuity [Member] In-Force Deferred Annuity [Member] In-Force Deferred Annuity [Member] Legal Entity [Axis] Legal Entity [Axis] Entity [Domain] Entity [Domain] CF Bermuda Holdings Limited [Member] CF Bermuda Holdings Limited [Member] CF Bermuda Holdings Limited [Member] FGL Insurance [Member] FGL Insurance [Member] FGL Insurance [Member] Nomura Nomura [Member] Nomura. Raven Re Raven Re [Member] Raven Re [Member] Letter of Credit Letter of Credit [Member] Ceded Credit Risk [Line Items] Ceded Credit Risk [Line Items] Ceded Ceded Premiums Earned Reinsured risk Reinsurance Retention Policy, Reinsured Risk, Percentage Extraordinary Dividend Extraordinary Dividend Extraordinary Dividend Proceeds from Equity Method Investment, Distribution, Return of Capital Proceeds from Equity Method Investment, Distribution, Return of Capital Reinsurance Risk Charge Fee Reinsurance Risk Charge Fee Reinsurance Risk Charge Fee Reinsurance Retention Policy, Excess Retention, Amount Reinsured Reinsurance Retention Policy, Amount Retained Number of policies reinsured by foreign company not engaged in insurance Policies Reinsured by Foreign Company Not Engaged in Insurance Policies Reinsured by Foreign Company Not Engaged in Insurance Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Statutory capital and surplus Statutory Accounting Practices, Statutory Capital and Surplus, Balance Funds withheld for reinsurance receivables, at fair value Funds Held under Reinsurance Agreements, Asset Effects of Reinsurance [Table] Effects of Reinsurance [Table] Effects of Reinsurance [Line Items] Effects of Reinsurance [Line Items] Premiums and other considerations: Premiums Earned, Net [Abstract] Direct Direct Premiums Earned Assumed Assumed Premiums Earned Ceded Net Premiums Earned, Net Benefits and Other Changes in Insurance Policy Reserves: Policyholder Benefits and Claims Incurred [Abstract] Direct Policyholder Benefits and Claims Incurred, Direct Assumed Policyholder Benefits and Claims Incurred, Assumed Ceded Policyholder Benefits and Claims Incurred, Ceded Net Policyholder Benefits and Claims Incurred, Net Schedule of Investments [Table] Schedule of Investments [Table] Investment Type [Axis] Investment Type [Axis] Investments [Domain] Investments [Domain] Fixed maturity securities, available-for-sale Debt Securities [Member] Invested cash and short-term investments Invested Cash And Short Term Investments [Member] Invested cash and short-term investments. Funds withheld Funds Withheld [Member] Funds Withheld [Member] Limited partnerships Limited Partnership [Member] Limited Partnership [Member] Other investments Other Investments [Member] Schedule of Investments [Line Items] Schedule of Investments [Line Items] Gross investment income Gross Investment Income, Operating Investment expense Investment Income, Investment Expense Net investment income Net Investment Income Statement of Cash Flows [Abstract] Derivative and other Derivative [Member] Adjustments to reconcile net income (loss) to net cash provided by operating activities: Amortization Amortization Deferred income taxes Increase (Decrease) in Deferred Income Taxes Interest credited/index credits to contractholder account balances Interest Credited to Policy Owner Account Net recognized losses (gains) on investments and derivatives Charges assessed to contractholders for mortality and administration Charges Assessed To Contract Holders For Mortality And Administration Mortality and expense charges and administrative fees. Intangibles, net Increase (Decrease) in Deferred Policy Acquisition Costs Changes in operating assets and liabilities: Increase (Decrease) in Operating Capital [Abstract] Reinsurance recoverable Increase (Decrease) in Reinsurance Recoverable Future policy benefits reflected in net income (loss) Increase (Decrease) in Future Policy Benefit Reserves Funds withheld for reinsurers Increase (Decrease) in Funds Held under Reinsurance Agreements Collateral (returned) posted Collateral Returned (Posted) Collateral Returned (Posted) Proceeds from mortgage loans Proceeds from Sale of Loans Receivable Costs of mortgage loans Payments to Acquire Loans Receivable Capital expenditures Payments to Acquire Productive Assets Payment for Contingent Consideration Liability, Investing Activities Payment for Contingent Consideration Liability, Investing Activities Payments of Debt Issuance Costs Payments of Debt Issuance Costs Proceeds from (Repayments of) Debt Proceeds from (Repayments of) Debt Retirement and paydown on debt and revolving credit facility Repayments of Long-term Lines of Credit Draw on revolving credit facility Proceeds from Long-term Lines of Credit Common stock dividends paid Warrants Tendered Warrants Tendered Warrants Tendered Contractholder account deposits Proceeds from Annuities and Investment Certificates Contractholder account withdrawals Repayments of Annuities and Investment Certificates Change in cash & cash equivalents Supplemental disclosures: Supplemental Cash Flow Information [Abstract] Interest Paid, Excluding Capitalized Interest, Operating Activities Interest Paid, Excluding Capitalized Interest, Operating Activities Income taxes (refunded) paid Income Taxes Paid, Net Deferred sales inducements Deferred Sales Inducements, Period Increase (Decrease) Statement of Stockholders' Equity [Abstract] Preferred Stock Common Stock Additional Paid-in Capital Additional Paid-in Capital [Member] Retained Earnings (Accumulated Deficit) Retained Earnings [Member] Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] Treasury Stock Treasury Stock [Member] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Beginning Balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Treasury shares purchased Stock Repurchased During Period, Value Dividends Dividends Unrealized investment gains (losses), net Other Comprehensive Income (Loss), Securities, Available-for-Sale, Unrealized Holding Gain (Loss) Arising During Period, after Tax Dividend, Share-based Payment Arrangement, Shares Dividend, Share-based Payment Arrangement, Shares Change in reinsurance liabilities held at fair value resulting from a change in the instrument-specific credit risk Other Comprehensive Income (Loss), Financial Liability, Fair Value Option, before Tax, after Reclassification Adjustment Warrants Tendered Cumulative Effect of New Accounting Principle in Period of Adoption Cumulative Effect of New Accounting Principle in Period of Adoption Ending Balance Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Fair Value, Inputs, Level 1 Fair Value, Inputs, Level 1 [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 3 Fair Value, Inputs, Level 3 [Member] Measurement Basis [Axis] Measurement Basis [Axis] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Fair Value Estimate of Fair Value Measurement [Member] Reported Value Measurement Reported Value Measurement [Member] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] Affiliated Entity Affiliated Entity [Member] Black Scholes Model Black Scholes Model [Member] Black Scholes Model [Member] Loan Recovery Valuation Loan Recovery Valuation [Member] Loan Recovery Valuation [Member] Matrix Pricing Valuation Matrix Pricing Valuation [Member] Matrix Pricing Valuation [Member] Third Parties Third Parties [Member] Third Parties [Member] Commercial mortgage-backed securities Commercial Mortgage Backed Securities [Member] Corporates Corporate Debt Securities [Member] Hybrids Hybrids [Member] Hybrids. Municipals US States and Political Subdivisions Debt Securities [Member] Available-for-sale embedded derivative Available For Sale Embedded Derivatives [Member] Available-for-sale embedded derivatives. Bank Loan Obligations Bank Loan Obligations [Member] HIG Energy Notes HIG Energy Notes [Member] HIG Energy Notes [Member] Loan participations Salus 2013 Participations [Member] Salus 2013 Participations [Member] Residential mortgage-backed securities Residential Mortgage Backed Securities [Member] Related party investment Related Party Loans and Investments [Member] Related party loans and investments [Member] Debt Security, Government, Non-US Debt Security, Government, Non-US [Member] Reinsurance Receivables, Funds Withheld Reinsurance Receivables, Funds Withheld [Member] Reinsurance Receivables, Funds Withheld [Member] Credit Linked Note Credit Linked Note [Member] Credit Linked Note [Member] HGI Energy Note HGI Energy Note [Member] HGI Energy Note [Member] Fixed Maturity Security Embedded Derivative Fixed Maturity Security Embedded Derivative [Member] Fixed Maturity Security Embedded Derivative [Member] Liability Class [Axis] Liability Class [Axis] Fair Value by Liability Class [Domain] Fair Value by Liability Class [Domain] FIA embedded derivatives, included in contractholder funds Embedded Derivatives Included In Contractholder Funds [Member] Embedded derivatives, included in contractholder funds. Future Policy Benefits Future Policy Benefits [Member] Future Policy Benefits [Member] Preferred Shares Reimbursement Feature Embedded Derivative [Member] Preferred Shares Reimbursement Feature Embedded Derivative [Member] Preferred Shares Reimbursement Feature Embedded Derivative [Member] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] FHLB Common Stock, Fair Value FHLB Common Stock, Fair Value FHLB Common Stock, Fair Value Fair Value Investments, Commercial Mortgage Loans, Fair Value Disclosure Fair value of the investment commercial mortgage loan portfolio Assets, Fair Value Disclosure Assets, Fair Value Disclosure Residential Mortage Backed securities Residential Mortage Backed securities Residential Mortage-backed securities Reinsurance Receivables, Funds Withheld Reinsurance Receivables, Funds Withheld Reinsurance Receivables, Funds Withheld Loan Recovery Value Loan Recovery Value Loan Recovery Value Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Balance at Beginning of Period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Assets, Total Gains (Losses) Included in Earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings Assets, Total Gains (Losses) Included in AOCI Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Other Comprehensive Income (Loss) Assets, Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Assets, Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales Assets, Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Settlements Assets, Net transfer In (Out) of Level 3 Balance at End of Period Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Balance at Beginning of Period Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Liabilities, Total Gains (Losses) Included in Earnings Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Liabilities, Total Gains (Losses) Included in AOCI Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Other Comprehensive Income (Loss) Liabilities, Purchases Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Purchases Liabilities, Sales Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Sales Liabilities, Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Liabilities, Net transfer In (Out) of Level 3 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Transfers, Net Balance at End of Period Future Policy Benefit Future Policy Benefit Future Policy Benefit Liabilities, fair value Financial and Nonfinancial Liabilities, Fair Value Disclosure Residential mortgage loans Policy Loans, Fair Value Policy Loans, Fair Value Related party loans and investments Related party loans and investments Related party loans and investments Other invested assets Invested assets, other Invested assets, other Assets, carried on Balance Sheet at amounts other than fair value Assets, carried on Balance Sheet at amounts other than fair value Assets, carried on Balance Sheet at amounts other than fair value Liabilities Related to Investment Contracts, Fair Value Disclosure Liabilities Related to Investment Contracts, Fair Value Disclosure Debt Instrument, Fair Value Disclosure Debt Instrument, Fair Value Disclosure Liabilities, carried on Balance Sheet at amounts other than fair value Liabilities, carried on Balance Sheet at amounts other than fair value Liabilities, carried on Balance Sheet at amounts other than fair value Schedule Other Liabilities Schedule of Other Assets and Other Liabilities [Table Text Block] Cash dividend per common share (in dollars per share) Common Stock, Dividends, Per Share, Declared Total cash paid Payments of Ordinary Dividends, Common Stock Stock options Share-based Payment Arrangement, Option [Member] Unrecognized Compensation Expense Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Share-based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Statement of Comprehensive Income [Abstract] Other comprehensive income (loss): Other Comprehensive Income (Loss), Net of Tax [Abstract] Debt and Equity Securities, Unrealized Gain (Loss) [Abstract] Debt and Equity Securities, Unrealized Gain (Loss) [Abstract] Net change in unrealized gains/losses on investments (net of intangibles and deferred tax asset) Unrealized Gain (Loss) on Investments Net changes to derive comprehensive income (loss) for the period Other Comprehensive Income (Loss), Net of Tax Comprehensive income (loss), net of tax Comprehensive Income (Loss), Net of Tax, Attributable to Parent Condensed Balance Sheet Statement [Table] Condensed Balance Sheet Statement [Table] Condensed Balance Sheet Statements, Captions [Line Items] Condensed Balance Sheet Statements, Captions [Line Items] Investments in consolidated subsidiaries Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Fixed maturity securities, available for sale Debt Securities, Available-for-sale Cash and cash equivalents Total assets Assets Other liabilities Total liabilities Liabilities Preferred stock Preferred Stock, Value, Issued Common stock Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital, Common Stock Retained earnings (Accumulated deficit) Retained Earnings (Accumulated Deficit) Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Treasury stock Treasury Stock, Value Total shareholders' equity Stockholders' Equity Attributable to Parent Total liabilities and shareholders' equity Liabilities and Equity 2017 Stock Incentive Plan [Member] 2017 Stock Incentive Plan [Member] 2017 Stock Incentive Plan [Member] Title of Individual [Axis] Title of Individual [Axis] Title of Individual [Domain] Title of Individual [Domain] Officer Officer [Member] Management [Member] Management [Member] FGL Holdings [Member] FGL Holdings [Member] FGL Holdings [Member] Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Options Fair Value At Grant Date Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Options Fair Value At Grant Date Share Based Compensation Arrangement by Share Based Payment Award Equity Instruments Options Fair Value at Grant Date. Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Share-based Liabilities Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Share-based Liabilities Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Share-based Liabilities Share Price Share Price SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Abstract] Deferred acquisition costs SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Deferred Policy Acquisition Cost Future policy benefits, losses, claims and loss expenses SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Liability for Future Policy Benefit, Loss, Claim and Loss Expense Other policy claims and benefits payable SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Policy Claim and Benefit Payable Premium revenue SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Premium Revenue Net investment income SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Net Investment Income Benefits, claims, losses and settlement expenses SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Benefit, Claim, Loss and Settlement Expenses Amortization, interest, and unlocking of deferred acquisition costs SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Amortization of Deferred Policy Acquisition Cost Acquisition and operating expenses, net of deferrals SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information, Other Operating Expense Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Management Fee, Description Management Fee Expense Management Fee Payable Management Fee Payable Reimbursement Revenue (Deprecated 2018-01-31) Reimbursement Fees Reimbursement Fees Related Party Transaction, Asset Carrying Value Related Party Transaction, Asset Carrying Value Related Party Transaction, Asset Carrying Value Foreign Currency Transaction Gain (Loss), Unrealized Foreign Currency Transaction Gain (Loss), Unrealized Other Commitment Residential Mortgage Loans Purchased Residential Mortgage Loans Purchased Residential Mortgage Loans Purchased Net investment income Related Party Transaction, Net Investment Income from Transactions with Related Party Related Party Transaction, Net Investment Income from Transactions with Related Party Related Party Transactions, Gain (Loss) Related Party Transactions, Gain (Loss) Gain (Loss) Related Party Transactions Commitments and Contingencies Disclosure [Abstract] Summary of Unfunded Commitments Other Commitments [Table Text Block] Derivative [Table] Derivative [Table] Derivative Instrument [Axis] Call options Call Option [Member] Futures contracts Future [Member] Currency Forward Foreign Exchange Forward [Member] Other derivatives and embedded derivatives Embedded Derivative Financial Instruments [Member] Reinsurance related embedded derivative Embedded Derivatives in Reinsurance Contracts [Member] Embedded Derivatives in Reinsurance Contracts [Member] FIA embedded derivative Fia Embedded Derivatives [Member] FIA embedded derivatives. Derivative [Line Items] Derivative [Line Items] Other Commitments [Table] Other Commitments [Table] Asset Class [Axis] Asset Class [Axis] Asset Class [Domain] Asset Class [Domain] Fixed maturity securities, available-for-sale Fixed Maturities Available For Sale [Member] Fixed Maturities Available For Sale [Member] Other assets Other Assets [Member] Other Commitments [Line Items] Other Commitments [Line Items] Income Tax Contingency [Table] Income Tax Contingency [Table] Income Tax Contingency [Line Items] Income Tax Contingency [Line Items] Expected income tax (expense)/benefit at Federal statutory rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Valuation allowance for deferred tax assets Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Amortization of low income housing tax credits Effective Income Tax Rate Reconciliation, Amortization of Tax Credit Effective Income Tax Rate Reconciliation, Amortization of Tax Credit Benefit on LIHTC under proportional amortization method Effective Income Tax Rate Reconciliation, Tax Credit, Amount Write off of expired capital loss carryforward Effective Income Tax Rate Reconciliation, Deferred Tax Asset, Expired Capital Loss Carryfoward Write off Effective Income Tax Rate Reconciliation, Deferred Tax Asset, Expired Capital Loss Carryfoward Write off Remeasurement of deferred taxes under U.S. tax reform Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount Dividends received deduction Effective Income Tax Rate Reconciliation, Deduction, Dividends, Amount Benefit on Outside of United States Income taxed at 0% Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount Withholding Tax on 0% Taxed Jurisdictions Income Tax Reconciliation Withholding Taxed Jurisdictions Income Tax Reconciliation Withholding Taxed Jurisdictions Write off of 382 Limited NOL Effective Income Tax Rate Reconciliation, Net Operating Loss Carryforward Write off Effective Income Tax Rate Reconciliation, Net Operating Loss Carryforward Write off Base Erosion & Antiabuse Tax BEAT Base Erosion & Antiabuse Tax Base Erosion & Antiabuse Tax Other Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Income tax (expense)/benefit Income Tax Expense (Benefit) Effective tax rate Effective Income Tax Rate Reconciliation, Percent Subsequent Events [Abstract] Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table] Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Table] Loan Participation - JSN Jewelry, Inc. Loan Participation - JSN Jewelry, Inc. [Member] Loan Participation -JSN Jewelry, Inc. [Member] States, municipalities and political subdivisions Private Equity Funds Private Equity Funds [Member] Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] Fair Value, Investments, Entities that Calculate Net Asset Value Per Share [Line Items] Alternative Investment Alternative Investment Financial and Nonfinancial Liabilities, Fair Value Disclosure Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Long-term Debt, Type [Domain] Long-term Debt, Type [Domain] Senior Notes Senior Notes [Member] Debt Instrument [Axis] Debt Instrument [Axis] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] 6.375% Senior Notes, Due April 1, 2021 Six Point Three Seven Five Percent Senior Notes, Due April 1, 2021 [Member] Six Point Three Seven Five Percent Senior Notes, Due April 1, 2021 [Member] Five Point Five Percent Senior Notes, Due 2025 [Member] Five Point Five Percent Senior Notes, Due 2025 [Member] Five Point Five Percent Senior Notes, Due 2025 [Member] Long-term debt, interest rate Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate Debt Instrument, Unamortized Discount Rate Debt Instrument, Unamortized Discount Rate Debt Instrument, Unamortized Discount Rate Debt Long-term Debt Gain on Extinguishment of Debt Debt Issuance Costs, Net Debt Issuance Costs, Net Interest rate if revolver drawn Line of Credit Facility, Interest Rate at Period End Remaining borrowing capacity Line of Credit Facility, Remaining Borrowing Capacity Commercial Portfolio Segment Commercial Portfolio Segment [Member] Municipals Municipals [Member] Municipals. U.S. Government US Government Agencies Debt Securities [Member] Other invested assets All Other Securities [Member] All Other Securities [Member] Available-for sale securities Debt Securities, Available-for-sale, Fair Value to Amortized Cost [Abstract] Amortized cost Available-for-sale Securities, Amortized Cost Basis Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax Available-for-sale Equity Securities, Accumulated Gross Unrealized Gain, before Tax Gross Unrealized Gains Available-for-sale Securities, Accumulated Gross Unrealized Gain, before Tax Gross Unrealized Losses Available-for-sale Securities, Accumulated Gross Unrealized Loss, before Tax Fair Value Carrying Value Available For Sale Securities Carrying Value Available For Sale Securities Carrying Value Derivative investments Investments, Derivatives, Fair Value to Amortized Cost Basis [Abstract] Investments, Derivatives, Fair Value to Amortized Cost Basis [Abstract] Amortized Cost Investments, Derivatives, Amortized Cost Investments, Derivatives, Amortized Cost Gross Unrealized Gains Investments, Derivatives, Accumulated Gross Unrealized Gain, before Tax Available-for-sale Securities, Derivatives, Accumulated Gross Unrealized Gain, before Tax Gross Unrealized Losses Investments, Derivatives, Accumulated Gross Unrealized Loss, before Tax Investments, Derivatives, Accumulated Gross Unrealized Loss, before Tax Fair Value Investments, Derivatives, Fair Value Disclosure Investments, Derivatives, Fair Value Disclosure Carrying Value Derivative Asset Commercial mortgage loans Other Investments, Fair Value to Amortized Cost Basis [Abstract] Other Investments, Fair Value to Amortized Cost Basis [Abstract] Amortized Cost Investment, Commercial Mortgage Loans, Amortized Cost Amortized cost basis of the commercial mortgage loan investment portfolio Gross Unrealized Gains Investments, Commercial Mortgage Loans, Accumulated Gross Unrealized Gain before Tax Accumulated unrealized gain, before tax, on the investment commercial loan portfolio Gross Unrealized Losses Investments, Commercial Mortgage Loans, Accumulated Gross Unrealized Loss before Tax Accumulated gross unrealized loss, before tax, on the investment commercial loan portfolio Carrying Value Loans and Leases Receivable, Net Amount Investment, Residential Mortgage Loans, Amortized Cost Investment, Residential Mortgage Loans, Amortized Cost Amortized cost basis of the residential mortgage loan investment portfolio Investments, Residential Mortgage Loans, Accumulated Gross Unrealized Gain before Tax Investments, Residential Mortgage Loans, Accumulated Gross Unrealized Gain before Tax Accumulated unrealized gain, before tax, on the investment residential loan portfolio Investments, Residential Mortgage Loans, Fair Value Disclosure Investments, Residential Mortgage Loans, Fair Value Disclosure Fair value of the investment residential mortgage loan portfolio Total investments Investments [Abstract] Amortized Cost Investments, Cost or Amortized Cost Investments, Cost or Amortized Cost Gross Unrealized Gains Investments, Accumulated Gross Unrealized Gain, before Tax Investments, Accumulated Gross Unrealized Gain, before Tax Gross Unrealized Losses Investments, Accumulated Gross Unrealized Loss, before Tax Investments, Accumulated Gross Unrealized Loss, before Tax Fair Value Investments, Fair Value Disclosure Carrying Value Investments Available-for-sale securities, Gross Unrealized Losses, Less than 12 months Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss Available-for-sale securities, Fair Value, 12 months or longer Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss Total number of available-for-sale securities in an unrealized loss position less than twelve months Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Less than One Year Total number of available-for-sale securities in an unrealized loss position twelve months or longer Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions Equity Securities, Amortized Cost Basis Equity Securities, Amortized Cost Basis Equity Securities, Amortized Cost Basis Equity Securities, Accumulated Gross Unrealized Gain, before Tax Equity Securities, Accumulated Gross Unrealized Gain, before Tax Equity Securities, Accumulated Gross Unrealized Gain, before Tax Equity Securities, Accumulated Gross Unrealized Loss, before tax Equity Securities, Accumulated Gross Unrealized Loss, before tax Equity Securities, Accumulated Gross Unrealized Loss, before tax Equity Securities, Fair Value Equity Securities, Fair Value Equity Securities, Fair Value Equity Securities, Carrying Value Equity Securities, Carrying Value Equity Securities, Carrying Value stock compensation expense Share-based Payment Arrangement, Expense Related tax benefit Share-based Payment Arrangement, Expense, Tax Benefit Options (in shares): Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Stock options outstanding at beginning of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Granted (in shares) Exercised (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Forfeited or expired (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period Stock options outstanding at end (in shares) Vested and exercisable at end of period (in shares) Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Exercisable Number Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Exercisable Number Vested or projected to vest (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Weighted Average Exercise Price (in dollars per share): Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Stock options outstanding at beginning of period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Granted (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Exercised (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Forfeited or expired (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures and Expirations in Period, Weighted Average Exercise Price Stock options outstanding at end of period (in dollars per share) Vested and exercisable at end of period (in dollars per share) Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Exercisable Weighted Average Exercise Price Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Exercisable Weighted Average Exercise Price Vested and projected to vest (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Long-term Debt, Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] FGL Fidelity & Guaranty Life [Member] Fidelity & Guaranty Life [Member] Fidelity national Financial, Inc [Member] Fidelity national Financial, Inc [Member] Fidelity national Financial, Inc [Member] Acquisition share price (in USD per share) Business Acquisition, Share Price Business Combination, Consideration Transferred Business Combination, Consideration Transferred Business Acquisition, Percentage of Voting Interests Acquired Business Acquisition, Percentage of Voting Interests Acquired Preferred shares Acquired Through Acquisition, Value Preferred shares Acquired Through Acquisition, Value Preferred shares Acquired Through Acquisition,Value Debt Assumed Through Acquisition Debt Assumed Through Acquisition Debt Assumed Through Acquisition Shareholders equity Convertible Basis ,in cash Shareholders equity Convertible Basis ,in cash Shareholders equity Convertible Basis ,in cash Stockholders' Equity Note, Stock Split, Conversion Ratio Stockholders' Equity Note, Stock Split, Conversion Ratio Consideration Paid In Cash, Percent Consideration Paid In Cash, Percent Consideration Paid In Cash, Percent Consideration Paid In Common Stock, Percent Consideration Paid In Common Stock, Percent Consideration Paid In Common Stock, Percent Reporting segments Number of Reportable Segments Equity security Total other-than-temporary impairments Other than Temporary Impairment Losses, Investments, Portion Recognized in Earnings, Net Residential mortgage-backed securities Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member] Due in one year or less, Amortized Cost Debt Securities, Available-for-sale, Maturity, Allocated and Single Maturity Date, within One Year, Amortized Cost Due after one year through five years, Amortized Cost