Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of Deferred Compensation Arrangement with Individual, Share-based Payments [Table]
Schedule of Deferred Compensation Arrangement with Individual, Share-based Payments [Table]
Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation [Axis]
Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation [Axis]
Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation [Domain]
Equity-Based Arrangements, Individual Contracts, Type of Deferred Compensation [Domain]
2006 Equity Incentive Plan
Two Thousand Six Equity Incentive Plan [Member]
2006 Equity Incentive Plan.
Enstar Group Limited Employee Share Purchase Plan
Employee Stock Purchase Plan [Member]
Employee stock purchase plan.
Award Type [Axis]
Award Type [Axis]
Equity Award [Domain]
Equity Award [Domain]
Time-Based Restricted Shares
Time-Based Restricted Stock [Member]
Time-Based Restricted Stock [Member]
Plan Name [Axis]
Plan Name [Axis]
Plan Name [Domain]
Plan Name [Domain]
Long-term Incentive Plans
Long Term Incentive Plans [Member]
Long Term Incentive Plans [Member]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Deferred Compensation Arrangement with Individual, Share-based Payments [Line Items]
Compensation costs recognized in earnings
Allocated Share-based Compensation Expense
Pension expense
Pension Expense
Insurance [Abstract]
Statement [Table]
Statement [Table]
Insurance Product Line [Axis]
Products and Services [Axis]
Insurance Product Line [Domain]
Products and Services [Domain]
Non-Life Run-Off Segment
Non-Life Run-Off Segment [Member]
Non-Life Run-Off Company Segment [Member]
Atrium
Atrium Underwriting Group Limited [Member]
Atrium Underwriting Group Limited [Member]
StarStone
StarStone Segment [Member]
StarStone Segment [Member]
Statement [Line Items]
Statement [Line Items]
Total Losses and Loss Adjustment Expense Liabilities
Schedule of Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block]
Reconciliation of Beginning and Ending Reserves for Losses and Loss Adjustment Expenses
Schedule of Causes of Increase (Decrease) in Liability for Unpaid Claims and Claims Adjustment Expense [Table Text Block]
Net (Reduction) Increase in Ultimate Losses and Loss Adjustment Expense Liabilities
Schedule Of Increase In Loss And Loss Adjustment Expenses Table [Text Block]
Schedule Of Increase In Loss And Loss Adjustment Expenses Table [Text Block]
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule Of Intangible Assets [Table]
Schedule Of Intangible Assets [Table]
Schedule Of Intangible Assets [Table]
Indefinite-lived Intangible Assets [Axis]
Indefinite-lived Intangible Assets [Axis]
Indefinite-lived Intangible Assets, Major Class Name [Domain]
Indefinite-lived Intangible Assets, Major Class Name [Domain]
Syndicate capacity
Syndicate Capacity [Member]
Syndicate Capacity [Member]
Licenses
Licenses [Member]
Licenses [Member]
Management contract
Management Contract [Member]
Management Contract [Member]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets by Major Class [Axis]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Finite-Lived Intangible Assets, Major Class Name [Domain]
Fair Value Adjustments
Fair Value Adjustments [Member]
Fair Value Adjustments [Member]
Losses and LAE liabilities
Losses And Loss Adjustment Expense Liabilities [Member]
Losses And Loss Adjustment Expense Liabilities [Member]
Reinsurance balances recoverable
Reinsurance Recoverable [Member]
Policy benefits for life and annuity contracts
Policy Benefits For Life And Annuity Contracts [Member]
Policy Benefits For Life And Annuity Contracts [Member]
Other
Other Intangible Assets [Member]
Distribution channel
Distribution Channel [Member]
Distribution Channel [Member]
Technology
Developed Technology Rights [Member]
Brand
Brand [Member]
Brand [Member]
Schedule Of Intangible Assets [Line Items]
Schedule Of Intangible Assets [Line Items]
Schedule Of Intangible Assets [Line Items]
Gross Carrying Value
Finite-Lived Intangible Assets, Gross
Accumulated Amortization
Finite-Lived Intangible Assets, Accumulated Amortization
Intangible assets with a definite life, Net Carrying Value
Finite-Lived Intangible Assets, Net
Intangible assets with an indefinite life, Carrying Value
Indefinite-Lived Intangible Assets (Excluding Goodwill)
Deferred charge on retroactive reinsurance, Gross Carrying Value
Deferred Charge On Retroactive Reinsurance, Gross
Deferred Charge On Retroactive Reinsurance, Gross
Deferred charge on retroactive reinsurance, Accumulated Amortization
Deferred Charge On Retroactive Reinsurance, Amortization
Deferred Charge On Retroactive Reinsurance, Amortization
Deferred charge on retroactive reinsurance, Net Carrying Value
Deferred Charge On Retroactive Reinsurance Net
Deferred charge on retroactive reinsurance net.
Life
Liability for Future Policy Benefits, Life
Annuities
Liability for Future Policy Benefits, Annuities
Liability for Future Policy Benefits, Annuities
Policy benefits for life and annuity contracts
Liability For Future Policy Benefits Life And Annuities
Liability For Future Policy Benefits Life And Annuities
Fair value adjustments
Liability For Future Policy Benefits Fair Value Adjustment
Liability For Future Policy Benefits Fair Value Adjustment
Policy benefits for life and annuity contracts, net of fair value adjustments
Liability for Future Policy Benefits, Individual and Group Annuities and Supplementary Contracts
Noncontrolling Interest [Abstract]
Noncontrolling Interest [Table]
Noncontrolling Interest [Table]
Related Party Transaction [Axis]
Related Party Transaction [Axis]
Related Party Transaction [Domain]
Related Party Transaction [Domain]
Trident
Trident [Member]
Trident [Member]
Dowling
Dowling [Member]
Dowling [Member]
Business Combination, Separately Recognized Transactions [Axis]
Business Combination, Separately Recognized Transactions [Axis]
Business Combination, Separately Recognized Transactions [Domain]
Business Combination, Separately Recognized Transactions [Domain]
North Bay Holdings Limited
North Bay Holdings Limited [Member]
North Bay Holdings Limited [Member]
Noncontrolling Interest [Line Items]
Noncontrolling Interest [Line Items]
Interest owned by an entity (percent)
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage
Noncontrolling interest
Stockholders' Equity Attributable to Noncontrolling Interest
Schedule of Net Premiums Written and Earned
Premiums Written and Earned Table [Text Block]
Premiums Written and Earned Table [Text Block]
Investments, Debt and Equity Securities [Abstract]
One year or less, Amortized Cost
Held-to-maturity Securities, Debt Maturities, within One Year, Net Carrying Amount
More than one year through two years, Amortized Cost
Held To Maturity Securities Debt Maturities After One Through Two Years Net Carrying Amount
Held To Maturity Securities Debt Maturities After One Through Two Years Net Carrying Amount
More than two years through five years, Amortized Cost
Held To Maturity Securities Debt Maturities After Two Through Five Years Net Carrying Amount
Held to maturity securities debt maturities after two through five years net carrying amount.
More than five years through ten years, Amortized Cost
Held-to-maturity Securities, Debt Maturities, after Five Through Ten Years, Net Carrying Amount
More than ten years, Amortized Cost
Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount
Amortized cost due in years, Total
Held-to-maturity Securities, Debt Maturities, Single Maturity Date, Amortized Cost Basis
One year or less, Fair Value
Held-to-maturity Securities, Debt Maturities, Next Twelve Months, Fair Value
More than one year through two years, Fair Value
Held To Maturity Securities Debt Maturities After One Through Two Years Fair Value
Held to maturity securities debt maturities after one through two years fair value.
More than two years through five years, Fair Value
Held To Maturity Securities Debt Maturities After Two Through Five Years Fair Value
Held to maturity securities debt maturities after two through five years fair value.
More than five years through ten years, Fair Value
Held-to-maturity Securities, Debt Maturities, Year Six Through Ten, Fair Value
More than ten years, Fair Value
Held-to-maturity Securities, Debt Maturities, after Ten Years, Fair Value
Fair value due in years, Total
Held-to-maturity Securities, Fair Value
One year or less, Percentage of Total Fair Value
Held To Maturity Securities Debt Maturities Within One Year Weighted Average Yield Percentage
Held To Maturity Securities Debt Maturities Within One Year Weighted Average Yield Percentage
More than one year through two years, Percentage of Total Fair Value
Held To Maturity Securities Debt Maturities After One Through Two Years Weighted Average Yield Percentage
Held to maturity securities debt maturities after one through two years weighted average yield percentage.
More than two years through five years, Percentage of Total Fair Value
Held To Maturity Securities Debt Maturities After Two Through Five Years Weighted Average Yield Percentage
Held to maturity securities debt maturities after two through five years weighted average yield percentage.
More than five years through ten years, Percentage of Total Fair Value
Held To Maturity Securities Debt Maturities After Five Through Ten Years Weighted Average Yield Percentage
Held To Maturity Securities Debt Maturities After Five Through Ten Years Weighted Average Yield Percentage
More than ten years, Percentage of Total Fair Value
Held To Maturity Securities Debt Maturities After Ten Years Weighted Average Yield Percentage
Held To Maturity Securities Debt Maturities After Ten Years Weighted Average Yield Percentage
Percentage of Fair Value, Total
Held to Maturity Securities Debt Maturities with Single Maturity Date Percent of Fair Value
Held to Maturity Securities Debt Maturities with Single Maturity Date Percent of Fair Value
Debt Disclosure [Abstract]
Line of Credit Facility [Table]
Line of Credit Facility [Table]
Subsequent Event Type [Axis]
Subsequent Event Type [Axis]
Subsequent Event Type [Domain]
Subsequent Event Type [Domain]
Subsequent Event
Subsequent Event [Member]
Debt Instrument [Axis]
Debt Instrument [Axis]
Debt Instrument, Name [Domain]
Debt Instrument, Name [Domain]
EGL Revolving Credit Facility
Egl Revolving Credit Facility [Member]
EGL revolving credit facility.
Sussex Facility
Companion Facility [Member]
Companion Facility [Member]
Credit Facility [Axis]
Credit Facility [Axis]
Credit Facility [Domain]
Credit Facility [Domain]
Revolving Credit Facility
Revolving Credit Facility [Member]
Line of Credit Facility [Line Items]
Line of Credit Facility [Line Items]
Interest expense
Interest Expense, Debt
Facility term (years)
Debt Instrument, Term
Line of credit facility, maximum borrowing capacity
Line of Credit Facility, Maximum Borrowing Capacity
Unused borrowing capacity available, amount
Debt Instrument, Unused Borrowing Capacity, Amount
Proceeds from line of credit
Proceeds from Lines of Credit
Line of credit facility, remaining borrowing capacity
Line of Credit Facility, Remaining Borrowing Capacity
Percentage of consideration payable for acquisition
Term Loan Credit Facility Percentage For Acquisition Consideration Payable
Term Loan Credit Facility Percentage For Acquisition Consideration Payable
Acquisition completion date
Business Acquisition, Effective Date of Acquisition
Repayment of outstanding principal balance
Repayments of Lines of Credit
Statement of Cash Flows [Abstract]
OPERATING ACTIVITIES:
Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract]
Net earnings
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest
Adjustments to reconcile net earnings to cash flows provided by (used in) operating activities:
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Realized losses (gains) on sale of investments
Gain (Loss) on Sale of Investments
Unrealized losses (gains) on investments
Unrealized Gain (Loss) on Investments
Other non-cash items
Other Operating Activities, Cash Flow Statement
Depreciation and other amortization
Depreciation, Depletion and Amortization
Net change in trading securities held on behalf of policyholders
Net Movement Of Trading Securities Held On Behalf Of Policyholders
Net movement of trading securities held on behalf of policyholders
Sales and maturities of trading securities
Proceeds from Sale of Securities, Operating Activities
Purchases of trading securities
Payments for Purchase of Securities, Operating Activities
Changes in:
Increase (Decrease) in Operating Capital [Abstract]
Reinsurance balances recoverable
Increase (Decrease) in Reinsurance Recoverable
Funds held by reinsured companies
Increase (Decrease) in Funds Held under Reinsurance Agreements
Losses and loss adjustment expenses
Increase (Decrease) in Other Insurance Liabilities
Policy benefits for life and annuity contracts
Liability for Future Policy Benefits, Period Increase (Decrease)
Insurance and reinsurance balances payable
Increase (Decrease) in Insurance and Reinsurance Payables
Increase (Decrease) in Insurance and Reinsurance Payables
Unearned premiums
Increase (Decrease) in Unearned Premiums
Other operating assets and liabilities
Increase (Decrease) in Other Operating Liabilities
Net cash flows provided by (used in) operating activities
Net Cash Provided by (Used in) Operating Activities, Continuing Operations
INVESTING ACTIVITIES:
Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract]
Acquisitions, net of cash acquired
Payments to Acquire Businesses, Net of Cash Acquired
Sales and maturities of available-for-sale securities
Proceeds from Sale and Maturity of Available-for-sale Securities
Purchase of available-for-sale securities
Payments to Acquire Available-for-sale Securities
Maturities of held-to-maturity securities
Proceeds from Sale of Held-to-maturity Securities
Movement in restricted cash and cash equivalents
Increase (Decrease) in Restricted Cash
Purchase of other investments
Payments to Acquire Other Investments
Redemption of other investments
Proceeds from Sale and Maturity of Other Investments
Other investing activities
Payments for (Proceeds from) Other Investing Activities
Net cash flows provided by (used in) investing activities
Net Cash Provided by (Used in) Investing Activities, Continuing Operations
FINANCING ACTIVITIES:
Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract]
Receipt of loans
Proceeds from Issuance of Long-term Debt
Repayment of loans
Repayments of Long-term Debt
Net cash flows provided by (used in) financing activities
Net Cash Provided by (Used in) Financing Activities, Continuing Operations
EFFECT OF EXCHANGE RATE CHANGES ON FOREIGN CURRENCY CASH AND CASH EQUIVALENTS
Effect of Exchange Rate on Cash and Cash Equivalents
NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS
Cash and Cash Equivalents, Period Increase (Decrease)
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD
Cash and Cash Equivalents, at Carrying Value
CASH AND CASH EQUIVALENTS, END OF PERIOD
Supplemental Cash Flow Information:
Supplemental Cash Flow Information [Abstract]
Income taxes paid, net of refunds
Income Taxes Paid
Interest paid
Interest Paid
Accounting Policies [Abstract]
Basis of Preparation
Basis of Accounting, Policy [Policy Text Block]
Basis of Consolidation
Consolidation, Policy [Policy Text Block]
Reclassifications
Reclassification, Policy [Policy Text Block]
Use of Estimates
Use of Estimates, Policy [Policy Text Block]
New Accounting Standards and Recently Issued Accounting Pronouncements Not Yet Adopted
New Accounting Pronouncements, Policy [Policy Text Block]
Noncontrolling Interests
Noncontrolling Interest Disclosure [Text Block]
Amortization of intangible assets
Amortization of Intangible Assets
Effects of Reinsurance [Table]
Effects of Reinsurance [Table]
StarStone Segment
Effects of Reinsurance [Line Items]
Effects of Reinsurance [Line Items]
Net losses paid
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid
Net change in case and LAE reserves
Net Change In Case And Loss Adjustment Expense Reserves
Net change in case and loss adjustment expense reserves.
Net change in IBNR reserves
Reduction In Loss And Loss Adjustment Expenses Incurred But Not Reported
Reduction in loss and loss adjustment expenses incurred but not reported.
Increase (reduction) in estimates of net ultimate losses
Policyholder Benefits and Claims Incurred, Net
(Reduction) Increase in provisions for bad debt
Reduction In Provisions For Bad Debt
Reduction in provisions for bad debt
Increase (reduction) in provisions for unallocated LAE
Reduction Increase In Provisions For Unallocated Loss And Loss Adjustment Expense Liabilities
(Reduction) Increase in Provisions for Unallocated Loss and Loss Adjustment Expense Liabilities
Amortization of fair value adjustments
Amortization Of Fair Value Adjustments
Amortization of fair value adjustments.
Net incurred losses and LAE
Liability for Unpaid Claims and Claims Adjustment Expense, Period Increase (Decrease)
Net losses paid, Prior Period
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Prior Years
Net change in case and LAE reserves, Prior Period
Net Change In Case And Loss Adjustment Expense Reserves In Prior Period
Net Change In Case And Loss Adjustment Expense Reserves In Prior Period
Net change in IBNR reserves, Prior Period
Reduction In Loss And Loss Adjustment Expenses Incurred But Not Reported In Prior Period
Reduction in Loss and Loss Adjustment Expenses Incurred But Not Reported in Prior Period
(Reduction) increase in estimates of net ultimate losses, Prior Period
Policyholder Benefits and Claims Incurred, Net In Prior Period
Policyholder Benefits and Claims Incurred, Net In Prior Period
(Reduction) increase in provisions for bad debt, Prior Period
Reduction In Provisions For Bad Debt In Prior Period
Reduction In Provisions For Bad Debt In Prior Period
(Reduction) increase in provisions for unallocated loss adjustment expense liabilities, Prior Period
Reduction Increase In Provisions For Unallocated Loss And Loss Adjustment Expense Liabilities In Prior Period
Reduction Increase In Provisions For Unallocated Loss And Loss Adjustment Expense Liabilities In Prior Period
Amortization of fair value adjustments, Prior Period
Amortization Of Fair Value Adjustments In Prior Period
Amortization Of Fair Value Adjustments In Prior Period
Prior periods
Prior Year Claims and Claims Adjustment Expense
Net losses paid, Current Period
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid, Current Year
Net change in case and LAE reserves, Current Period
Net Change In Case And Loss Adjustment Expense Reserves In Current Period
Net Change In Case And Loss Adjustment Expense Reserves In Current Period
Net change in IBNR reserves, Current Period
Reduction In Loss And Loss Adjustment Expenses Incurred But Not Reported In Current Period
Reduction in Loss and Loss Adjustment Expenses Incurred But Not Reported in Current Period
(Reduction) increase in estimates of net ultimate losses, Current Period
Policyholder Benefits and Claims Incurred, Net In Current Period
Policyholder Benefits and Claims Incurred, Net In Current Period
(Reduction) increase in provisions for bad debt, Current Period
Reduction In Provisions For Bad Debt In Current Period
Reduction In Provisions For Bad Debt In Current Period
(Reduction) increase in provisions for unallocated loss adjustment expense liabilities, Current Period
Reduction Increase In Provisions For Unallocated Loss And Loss Adjustment Expense Liabilities In Current Period
Reduction Increase In Provisions For Unallocated Loss And Loss Adjustment Expense Liabilities In Current Period
Amortization of fair value adjustments, Current Period
Amortization Of Fair Value Adjustments In Current Period
Amortization Of Fair Value Adjustments In Current Period
Current period
Current Year Claims and Claims Adjustment Expense
Statement of Stockholders' Equity [Abstract]
Class of Stock [Axis]
Class of Stock [Axis]
Class of Stock [Domain]
Class of Stock [Domain]
Share Capital - Ordinary Shares
Voting Common Stock [Member]
Voting Common Stock.
Share Capital Series A Non-Voting Convertible Ordinary Shares
Non Voting Convertible Ordinary Shares Seriesa [Member]
Non voting convertible ordinary shares series A.
Share Capital Series C Non-Voting Convertible Ordinary Shares
Non Voting Convertible Ordinary Shares Seriesc [Member]
Non Voting Convertible Ordinary Shares Series C [Member]
Share Capital Series E Non-Voting Convertible Ordinary Shares
Non Voting Convertible Ordinary Shares Seriese [Member]
Non Voting Convertible Ordinary Shares Series E [Member]
Equity Components [Axis]
Equity Components [Axis]
Equity Component [Domain]
Equity Component [Domain]
Ordinary Shares
Common Stock [Member]
Treasury Shares
Treasury Stock [Member]
Additional Paid-in Capital
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive Income (Loss)
AOCI Attributable to Parent [Member]
Retained Earnings
Retained Earnings [Member]
Noncontrolling Interest (excludes redeemable noncontrolling interests)
Noncontrolling Interest [Member]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Balance, beginning of period
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest
Balance, beginning of period
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax
Balance, beginning and end of period
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax
Balance, beginning of period
Accumulated Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax
Issue of shares
Stock Issued During Period, Value, New Issues
Issue of shares and warrants
Issuance Of Common Stock And Warrants Issuance Cost
Issuance Of Common Stock And Warrants Issuance Cost
Amortization of equity incentive plan
Adjustments To Additional Paid In Capital Amortization Of Share Awards
Adjustments to additional Paid in capital Amortization Of Share Awards.
Change in currency translation adjustment
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax
Change in unrealized losses on investments
Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Net of Tax
Net earnings attributable to Enstar Group Limited
Net Income (Loss) Attributable to Parent
Accretion of redeemable noncontrolling interests to redemption value
Temporary Equity, Accretion to Redemption Value
Net earnings (loss) attributable to noncontrolling interest
Net Income (Loss) Attributable to Noncontrolling Interest
Net movement in unrealized holding losses on investments
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax
Balance, end of period
Balance, end of period
Balance, beginning and end of period
Balance, end of period
Fair Value Disclosures [Abstract]
Categorized Investments Recorded at Fair Value among Levels
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
Reconciliation of Beginning and Ending Balances for All Investments Measured at Fair Value on Recurring Basis
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
Fair Value Hierarchy of Assets Carried at Cost or Amortized Cost
Fair Value Measurements, Nonrecurring [Table Text Block]
Earnings Per Share [Abstract]
Comparison of Basic and Diluted Earnings per Share
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]
Premiums Receivable Disclosure [Abstract]
Premiums Written and Earned [Table]
Premiums Written and Earned [Table]
Premiums Written and Earned [Table]
Non-Life Run-Off
Non Life Run off Insurance Segment [Member]
Non Life Run off Insurance Segment [Member]
Life and Annuities
Life and Annuity Insurance Product Line [Member]
Premiums Written And Earned [Line Items]
Premiums Written And Earned [Line Items]
Premiums Written And Earned [Line Items]
Gross premiums written
Premiums Written, Gross
Ceded, premiums written
Ceded Premiums Written
Life, premiums written
Life Premiums Written
Life Premiums Written
Net, premiums written
Premiums Written, Net
Gross, premiums earned
Premiums Earned Gross
Premiums Earned Gross
Ceded, premiums earned
Ceded Premiums Earned
Life, premiums earned
Life Premiums Earned
Life Premiums Earned
Net Amount
Premiums Earned, Net
Basic earnings per ordinary share:
Earnings Per Share, Basic [Abstract]
Net earnings attributable to Enstar Group Limited
Weighted average ordinary shares outstanding - basic (shares)
Weighted Average Number of Shares Outstanding, Basic
Net earnings per ordinary share attributable to Enstar Group Limited - basic (dollars per share)
Earnings Per Share, Basic
Diluted earnings per ordinary share:
Earnings Per Share, Diluted [Abstract]
Effect of dilutive securities:
Incremental Weighted Average Shares Attributable to Dilutive Effect [Abstract]
Unvested shares (shares)
Incremental Common Shares Attributable To Nonvested Shares
Incremental common shares attributable to nonvested shares.
Restricted share unit (shares)
Incremental Common Shares Attributable To Restricted Share Units
Incremental common shares attributable to restricted share units.
Warrants (shares)
Incremental Common Shares Attributable To Warrants
Incremental Common Shares Attributable To Warrants
Weighted average ordinary shares outstanding - diluted (shares)
Weighted Average Number of Shares Outstanding, Diluted
Net earnings per ordinary share attributable to Enstar Group Limited - diluted (dollars per share)
Earnings Per Share, Diluted
Investments by Category [Axis]
Investments by Category [Axis]
Marketable Securities and Investments Held at Cost [Domain]
Marketable Securities and Investments Held at Cost [Domain]
Trading Securities
Trading Securities [Member]
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]
Held-to-maturity Securities
Held-to-maturity Securities [Member]
Available-for-sale Securities
Available-for-sale Securities [Member]
Estimated Fair Values of Investments in Fixed Maturity Investments, Short-Term Investments and Equities, Trading Securities
Trading Securities [Table Text Block]
Summary of Amortized Cost and Estimated Fair Value of Fixed Maturities by Contractual Maturity
Investments Classified by Contractual Maturity Date [Table Text Block]
Amortized Cost and Estimated Fair Values of Company's Fixed Maturity Investments Classified as Held-to-Maturity
Held-to-maturity Securities [Table Text Block]
Amortized Cost and Estimated Fair Values of Company's Fixed Maturity and Short-Term Investments Classified as Available-for-Sale
Available-for-sale Securities [Table Text Block]
Summary of Investments Classified as Available-for-Sale in Unrealized Loss Position as Well as Aggregate Fair Value and Gross Unrealized Loss by Length of Time
Schedule of Unrealized Loss on Investments [Table Text Block]
Credit Ratings Company's Fixed Maturity and Short-Term Investments Available-for-Sale
Credit Ratings Of Fixed Maturity Securities Classified As Available For Sale Table [Text Block]
Credit Ratings Of Fixed Maturity Securities Classified As Available For Sale Table [Text Block]
Other Investments
Other Investments Table [Text Block]
Other investments.
Schedule of Life Settlement Contracts, Investment Method
Schedule of Life Settlement Contracts, Investment Method [Table Text Block]
Components of Net Realized and Unrealized Gains (Losses)
Components Of Net Realized And Unrealized Gains Losses Table [Text Block]
Components of net realized and unrealized gains losses.
Major Categories of Net Investment Income
Investment Income [Table Text Block]
Schedule of Carrying Value of Restricted Investments
Schedule of Restricted Cash and Cash Equivalents [Table Text Block]
Related Party Transactions [Abstract]
Schedule of Related Party Transactions, by Related Party [Table]
Schedule of Related Party Transactions, by Related Party [Table]
Investment Type [Axis]
Investment Type [Axis]
Investments [Domain]
Investments [Domain]
CLO equities
Clo Equity [Member]
Clo Equity [Member]
Related Party [Axis]
Related Party [Axis]
Related Party [Domain]
Related Party [Domain]
Registered Investment Companies
Registered Investment Companies [Member]
Registered Investment Companies [Member]
Eagle Point
Eagle Point [Member]
Eagle Point [Member]
Sound Point Capital
Sound Point Capital [Member]
Sound Point Capital [Member]
Goldman Sachs
Goldman Sachs Co [Member]
Goldman Sachs Co [Member]
Hastings Insurance Group Limited
Hastings Insurance Group Limited [Member]
Hastings Insurance Group Limited [Member]
Goldman Sachs Affiliates
Goldman Sachs Affiliates [Member]
Goldman Sachs Affiliates [Member]
Wilton Relife Settlements
Wilton Relife Settlements [Member]
Wilton Relife Settlements [Member]
Legal Entity [Axis]
Legal Entity [Axis]
Entity [Domain]
Entity [Domain]
CPPIB and Management of Wilton Re
Canada Pension Plan Investment Board and Management of Wilton Re [Member]
Canada Pension Plan Investment Board and Management of Wilton Re [Member]
Series C Non-Voting Ordinary Shares
Class C- Nonvoting Convertible Common Stock [Member]
Class C- Nonvoting Convertible Common Stock [Member]
Related Party Transaction [Line Items]
Related Party Transaction [Line Items]
Related party transaction, shares acquired
Related Party Transaction Shares Acquired from Related Party
Related Party Transaction Shares Acquired from Related Party
Percentage of Company's voting ordinary shares acquired
Related Party Transactions Percentage Of Equity Interest Acquired
Related Party Transactions Percentage Of Equity Interest Acquired
Number of newly elected board of directors
Related Party Transaction, Number of Newly Elected Board of Directors
Related Party Transaction, Number of Newly Elected Board of Directors
Number of general partners
Related Party Transaction, Number of General Partners
Related Party Transaction, Number of General Partners
Shareholders' agreement period
Shareholders Agreement Period
Shareholders Agreement Period
Redeemable noncontrolling interest, redemption period one (years)
Redeemable Noncontrolling Interest, Redemption Period One
Redeemable Noncontrolling Interest, Redemption Period One
Redeemable noncontrolling interest, redemption period two (years)
Redeemable Noncontrolling Interest, Redemption Period Two
Redeemable Noncontrolling Interest, Redemption Period Two
Non-controlling interest
Fair value of the investments in funds
Investment Owned, at Fair Value
Net realized and unrealized gains (losses)
Gain (Loss) on Investments
Interest income, related party
Interest Income, Related Party
Separate account assets
Separate Account Assets
Management fees
Management Fee Expense
Ordinary shares (percent)
Common Stock Ownership Percentage
Common Stock Ownership Percentage
Indirect non-voting investments in number of companies
Number Of Companies Invested In Through Affiliated Entities
Number of companies invested in through affiliated entities
Investment in indirect non-voting interests of affiliated companies
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures
Affiliates interest percentage
Equity Method Investment, Ownership Percentage
Percentage of common stock
Majority Interest Ownership By Parent
Majority interest ownership by parent.
Voting interest held by noncontrolling owners (percent)
Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners
Economic interest held by noncontrolling owners (percent)
Percentage of Economic Interest Held By Noncontrolling Owners
Percentage of economic interest held by noncontrolling owners.
Reinsurance recoverables
Reinsurance Recoverables, Including Reinsurance Premium Paid
Amounts of Loans Payable Outstanding, and Accrued Interest
Schedule of Long-term Debt Instruments [Table Text Block]
Trading Securities [Table]
Trading Securities [Table]
Major Types of Debt and Equity Securities [Axis]
Major Types of Debt and Equity Securities [Axis]
Major Types of Debt and Equity Securities [Domain]
Major Types of Debt and Equity Securities [Domain]
Total fixed maturity and short-term investments
Fixed Maturity And Short Term Investments [Member]
Fixed Maturity And Short Term Investments [Member]
U.S. Government and Agency
US Government Agencies Debt Securities [Member]
Non-U.S. Government
Foreign Government Debt Securities [Member]
Corporate
Corporate Debt Securities [Member]
Residential Mortgage-Backed
Residential Mortgage Backed Securities [Member]
Commercial Mortgage-Backed
Commercial Mortgage Backed Securities [Member]
Asset-Backed
Asset-backed Securities [Member]
Equities - U.S.
Equities [Member]
Equities.
Equities - International
Equity Securities Index Funds International Equities [Member]
Equity Securities Index Funds International Equities [Member]
Municipal Bonds
Municipal Bonds [Member]
Measurement Basis [Axis]
Measurement Basis [Axis]
Fair Value Measurement [Domain]
Fair Value Measurement [Domain]
Portion at Fair Value Measurement [Member]
Portion at Fair Value Measurement [Member]
Fair Value
Estimate of Fair Value Measurement [Member]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Schedule of Trading Securities and Other Trading Assets [Line Items]
Trading securities
Trading Securities
Carrying Amount of Equity Attributable to Noncontrolling Interest
Redeemable Noncontrolling Interest [Table Text Block]
Schedule of Available-for-sale Securities [Table]
Schedule of Available-for-sale Securities [Table]
Schedule of Available-for-sale Securities [Line Items]
Schedule of Available-for-sale Securities [Line Items]
One year or less, Amortized Cost
Available-for-sale Securities, Debt Maturities, Remainder of Fiscal Year, Amortized Cost Basis
More than one year through two years, Amortized Cost
Available For Sale Securities Debt Maturities After One Through Two Amortized Cost
Available For Sale Securities Debt Maturities After One Through Two Amortized Cost
More than two years through five years, Amortized Cost
Available For Sale Securities Debt Maturities After Two through Five Years Amortized Cost
Available for sale securities debt maturities after two through five years amortized cost.
More than five years through ten years, Amortized Cost
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Amortized Cost Basis
More than ten years, Amortized cost
Available-for-sale Securities, Debt Maturities, after Ten Years, Amortized Cost Basis
Total amortized cost
Available-for-sale Debt Securities, Amortized Cost Basis
One year or less, Fair Value
Available-for-sale Securities, Debt Maturities, Remainder of Fiscal Year, Fair Value
More than one year through two years, Fair Value
Available For Sale Securities Debt Maturities After One Through Two Years Fair Value
Available For Sale Securities Debt Maturities After One Through Two Years Fair Value
More than two years through five years, Fair Value
Available For Sale Securities Debt Maturities After Two Through Five Years Fair Value
Available For Sale Securities Debt Maturities After Two Through Five Years Fair Value
More than five years through ten years, Fair Value
Available-for-sale Securities, Debt Maturities, Year Six Through Ten, Fair Value
More than ten years, Fair Value
Available-for-sale Securities, Debt Maturities, after Ten Years, Fair Value
Total fair value
Available-for-sale Securities
One year or less, Percentage of Total Fair Value
Available For Sale Securities Debt Maturities Remainder Of Fiscal Year Percent Of Fair Value
Available for sale securities debt maturities remainder of fiscal year percent of fair value.
More than one year through two years, Percentage of Total Fair Value
Available For Sale Securities Debt Maturities after One through Two Years Percent of Fair Value
Available for sale securities debt maturities after one through two years percent of fair value.
More than two years through five years, Percentage of Total Fair Value
Available For Sale Securities Debt Maturities after Two through Five Years Percent of Fair Value
Available for sale securities debt maturities after two through five years percent of fair value.
More than five years through ten years, Percentage of Total Fair Value
Available For Sale Securities Debt Maturities After Five Through Ten Years Percent Of Fair Value
Available for sale securities debt maturities after five through ten years percent of fair value.
More than ten years, Percentage of Total Fair Value
Available For Sale Securities Debt Maturities After Ten Years Percent Of Fair Value
Available for sale securities debt maturities after ten years percent of fair value.
Percentage of Total Fair Value
Available For Sale Securities Debt Securities Percent Of Fair Value
Available for sale securities debt securities percent of fair value.
Commitments and Contingencies Disclosure [Abstract]
Other Commitments [Table]
Other Commitments [Table]
Business Acquisition [Axis]
Business Acquisition [Axis]
Business Acquisition, Acquiree [Domain]
Business Acquisition, Acquiree [Domain]
Other Commitments [Line Items]
Other Commitments [Line Items]
Outstanding commitments
Outstanding Commitment
Outstanding commitment.
Commitment, funded
Commitment Funded
Related party transaction capital commitment funded to entities affiliated.
Commitments, unfunded
Fair Value, Investments, Entities that Calculate Net Asset Value Per Share, Unfunded Commitments
Total parental guarantees
Outstanding Parental Guarantees
Outstanding Parental Guarantees
Aggregate cash purchase price
Payments to Acquire Businesses, Gross
Summary of Reinsurance Reserves Recoverable
Reinsurance Balances Receivable Table [Text Block]
Reinsurance balances receivable.
Reinsurance Balances Recoverable by Reinsurer
Ceded Credit Risk [Table Text Block]
Summary of Provisions for Uncollectible Reinsurance Balances Recoverable by Rating of Reinsurer
Summary Of Provisions For Uncollectible Reinsurance Balances Recoverable By Rating Of Reinsurer Table [Table Text Block]
Summary Of Provisions For Uncollectible Reinsurance Balances Recoverable By Rating Of Reinsurer Table
Losses and Loss Adjustment Expenses
Liability for Future Policy Benefits and Unpaid Claims Disclosure [Text Block]
Outstanding losses
Liability for Unpaid Claims and Claims Adjustment Expense, Reported Claims, Amount
IBNR
Liability for Unpaid Claims and Claims Adjustment Expense, Incurred but Not Reported (IBNR) Claims, Amount
Fair value adjustments
Liability For Title Claims And Claims Adjustment Expense Fair Value Adjustments
Liability for title claims and claims adjustment expense fair value adjustments.
Total
Liability for Claims and Claims Adjustment Expense
Document And Entity Information [Abstract]
Document And Entity Information [Abstract]
Document Information [Table]
Document Information [Table]
Non-Voting Convertible Ordinary Shares
Non Voting Convertible Ordinary Shares [Member]
Non Voting Convertible Ordinary Shares [Member]
Document Information [Line Items]
Document Information [Line Items]
Entity Registrant Name
Entity Registrant Name
Entity Central Index Key
Entity Central Index Key
Trading Symbol
Trading Symbol
Current Fiscal Year End Date
Current Fiscal Year End Date
Entity Filer Category
Entity Filer Category
Document Type
Document Type
Document Period End Date
Document Period End Date
Document Fiscal Year Focus
Document Fiscal Year Focus
Document Fiscal Period Focus
Document Fiscal Period Focus
Amendment Flag
Amendment Flag
Entity Common Stock, Shares Outstanding
Entity Common Stock, Shares Outstanding
Premiums Written and Earned
Premiums Receivable Note [Text Block]
Fixed maturity and short-term investments, at fair value
Fixed maturity investments, at amortized cost
Fixed Maturities [Member]
Credit Rating, Standard & Poor's [Axis]
Credit Rating, Standard & Poor's [Axis]
External Credit Rating, Standard & Poor's [Domain]
External Credit Rating, Standard & Poor's [Domain]
AAA Rated
Standard & Poor's, AAA Rating [Member]
AA Rated
Standard & Poor's, AA Rating [Member]
A Rated
Standard & Poor's, A Rating [Member]
BBB Rated
Standard & Poor's, BBB Rating [Member]
Not Rated
Not Rated [Member]
Not rated.
External Credit Rating by Grouping [Axis]
External Credit Rating by Grouping [Axis]
External Credit Rating by Grouping [Domain]
External Credit Rating by Grouping [Domain]
Non- Investment Grade
External Credit Rating, Non Investment Grade [Member]
Amortized Cost
Investments Debt Securities Amortized Cost
Investments debt securities amortized cost.
Fair Value
Investments Debt Securities Fair Value
Investments debt securities fair value.
% of Total Investments
Investments Debt Securities Percentage Of Fair Value
Investments debt securities percentage of fair value.
% of total fair value
Investments Debt Securities Percentage Of Amortized Cost
Investments debt securities percentage of amortized cost.
Amortized Cost, total
Investments Debt Securities Amortized Cost Basis
Investments debt securities amortized cost basis.
Fair Value, total
Investments Debt Securities
Investments debt securities.
% of Total Investments, total
Investments Debt Securities Percentage Of Amortized Cost Or Fair Value
Investments debt securities percentage of amortized cost or fair value.
Amortized Cost and Fair Value, total
Investments Debt Securities Amortized Cost And Fair Value
Investments debt securities amortized cost and fair value.
Related Party Transactions
Related Party Transactions Disclosure [Text Block]
Investment [Axis]
Investment [Axis]
Investment [Domain]
Investment [Domain]
Fair Value, 12 Months or Greater
Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value
Gross Unrealized Losses, 12 Months or Greater
Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Accumulated Loss
Fair Value, Less Than 12 Months
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value
Gross Unrealized Losses, Less Than 12 Months
Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Accumulated Loss
Fair Value, Total
Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value
Gross Unrealized Losses, Total
Available-for-sale Securities, Continuous Unrealized Loss Position, Accumulated Loss
Origination Date
Line of Credit Facility, Initiation Date
Facility Term (years)
Total long-term bank debt
Long-term Line of Credit
Accrued interest
Interest Payable
Total loans payable
Long-term Debt
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fair Value Measurements, Recurring and Nonrecurring [Table]
Fixed Maturity Investments
Fixed Income Investments [Member]
Portion at Fair Value Measurement
Carrying Value
Reported Value Measurement [Member]
Balance Sheet Location [Axis]
Balance Sheet Location [Axis]
Balance Sheet Location [Domain]
Balance Sheet Location [Domain]
Other Investments
Other Investments [Member]
Municipal Bonds
Life Settlement
Life Settlement [Member]
Life Settlement [Member].
Fair Value, Hierarchy [Axis]
Fair Value, Hierarchy [Axis]
Fair Value Hierarchy [Domain]
Fair Value Hierarchy [Domain]
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Inputs, Level 1 [Member]
Significant Other Observable Inputs (Level 2)
Fair Value, Inputs, Level 2 [Member]
Significant Unobservable Inputs (Level 3)
Fair Value, Inputs, Level 3 [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]
Investments
Investments, Fair Value Disclosure
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivative Instruments
Derivative Instruments and Hedging Activities Disclosure [Text Block]
Segment Reporting [Abstract]
Number of segments
Number of Operating Segments
Amortized Cost
Gross Unrealized Gains
Available-for-sale Debt Securities, Accumulated Gross Unrealized Gain, before Tax
Gross Unrealized Losses Non-OTTI
Available-for-sale Debt Securities, Accumulated Gross Unrealized Loss, before Tax
Fair Value
Available-for-sale Securities, Debt Securities
Statement of Comprehensive Income [Abstract]
NET EARNINGS
Other comprehensive income, net of tax:
Other Comprehensive Income (Loss), Net of Tax [Abstract]
Unrealized holding gains (losses) on fixed income investments arising during the period
Reclassification adjustment for net realized losses (gains) included in net earnings
Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax
Unrealized gains (losses) arising during the period, net of reclassification adjustment
Currency translation adjustment
Total other comprehensive income (loss)
Other Comprehensive Income (Loss), Net of Tax
Comprehensive income
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest
Less comprehensive income attributable to noncontrolling interest
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest
COMPREHENSIVE INCOME ATTRIBUTABLE TO ENSTAR GROUP LIMITED
Comprehensive Income (Loss), Net of Tax, Attributable to Parent
Investment [Table]
Investment [Table]
Restricted Cash and Cash Equivalents [Axis]
Restricted Cash and Cash Equivalents [Axis]
Cash and Cash Equivalents [Domain]
Cash and Cash Equivalents [Domain]
Cash and Investments
Cash and Investments [Member]
Cash and Investments [Member]
Letters of Credit Pledged As Collateral
Letters of Credit Pledged As Collateral [Member]
Letters of Credit Pledged As Collateral [Member]
Investment [Line Items]
Investment [Line Items]
Collateral in trust for third party agreements
Letters Of Credit Collateral
Letters Of Credit Collateral
Assets on deposit with regulatory authorities
Cash, Cash Equivalents, and Short-term Investments
Assets on deposit with regulatory authorities
Securities Received as Collateral
Funds at Lloyd's
Restricted Investments
Restricted Investments, Total
Restricted Cash and Investments
Number of syndicates
Restricted Cash and Investments, Number of Syndicates
Restricted Cash and Investments, Number of Syndicates
Income Tax Disclosure [Abstract]
Income Tax Examination [Table]
Income Tax Examination [Table]
Income Tax Authority [Axis]
Income Tax Authority [Axis]
Income Tax Authority [Domain]
Income Tax Authority [Domain]
Bermuda
BERMUDA
Income Tax Examination [Line Items]
Income Tax Examination [Line Items]
Effective income tax rate (percent)
Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent
Increase in deferred tax asset valuation allowance
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount
Unrecognized tax benefits
Unrecognized Tax Benefits
Other Investments
Number of securities
Number of Securities
Number of Securities
Transfers between Levels 2 and 3
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Transfers Into Level 3
Transfers between Levels 3 and 2
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers out of Level 3
Transfers between Levels 1 and 2
Fair Value Measurements Transfers Between Level One And Level Two
Fair Value Measurements Transfers Between Level One And Level Two
Schedule of Goodwill and Intangible Assets
Schedule of Intangible Assets and Goodwill [Table Text Block]
Summary of Gross Carrying Value, Accumulated Amortization and Net Carrying Value of Intangible Assets
Finite-Lived and Indefinite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block]
Summary of Operations by Segment
Schedule of Segment Reporting Information, by Segment [Table Text Block]
Summary of Company's Assets by Segment
Reconciliation of Assets from Segment to Consolidated [Table Text Block]
Reinsurance Balances Recoverable
Reinsurance [Text Block]
Commitments and Contingencies
Commitments and Contingencies Disclosure [Text Block]
Fair Value Measurements
Fair Value Disclosures [Text Block]
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Business Acquisitions, by Acquisition [Table]
Schedule of Business Acquisitions, by Acquisition [Table]
Guarantor Obligations, Nature [Axis]
Guarantor Obligations, Nature [Axis]
Guarantor Obligations, Nature [Domain]
Guarantor Obligations, Nature [Domain]
Limited Parental Guarantee
Limited Parental Guarantee [Member]
Limited Parental Guarantee [Member]
Counterparty Name [Axis]
Counterparty Name [Axis]
Counterparty Name [Domain]
Counterparty Name [Domain]
Allianz
Allianz [Member]
Allianz [Member]
San Francisco Reinsurance Company
San Francisco Reinsurance Company [Member]
San Francisco Reinsurance Company [Member]
Business Acquisition [Line Items]
Business Acquisition [Line Items]
Percentage of reinsurance agreements entered
Percentage Of Reinsurance Agreement Entered
Percentage of reinsurance agreement entered.
Reinsurance reserve assumed
Net Reinsurance Reserves
Net reinsurance reserves.
Reinsurance premium assumed by counterparty
Reinsurance Premiums, Held by Counterparty
Reinsurance Premiums, Held by Counterparty
Approximate value of additional funds transferred to trust
Reinsurance Additional Funds Transferred
Reinsurance additional funds transferred.
Limited parental guarantee obligations, initial amount (up to)
Guarantor Obligations, Maximum Exposure, Undiscounted
Funds held by reinsured companies
Funds Held under Reinsurance Agreements, Asset
Ceded Credit Risk [Table]
Ceded Credit Risk [Table]
Segments [Axis]
Segments [Axis]
Segments [Domain]
Segments [Domain]
Life and Annuities
Life And Annuity Insurance Segment [Member]
Life And Annuity Insurance Segment [Member]
Concentration Risk Benchmark [Axis]
Concentration Risk Benchmark [Axis]
Concentration Risk Benchmark [Domain]
Concentration Risk Benchmark [Domain]
Reinsurance Recoverables
Concentration Risk Type [Axis]
Concentration Risk Type [Axis]
Concentration Risk Type [Domain]
Concentration Risk Type [Domain]
Reinsurer Concentration Risk
Reinsurer Concentration Risk [Member]
Ceded Credit Risk, Reinsurer [Axis]
Ceded Credit Risk, Reinsurer [Axis]
Ceded Credit Risk, Reinsurer [Domain]
Ceded Credit Risk, Reinsurer [Domain]
Top Ten Reinsurers
Top Ten Reinsurers [Member]
Top ten reinsurers.
Other Reinsurers' Balances Greater Than $1 Million
Other Reinsurers Balances Greater Than One Million Dollars [Member]
Other reinsurers balances greater than one million dollars.
Other Reinsurers' Balances Less Than $1 Million
Other Reinsurers Balances Less Than One Million Dollars [Member]
Other reinsurers balances less than one million dollars.
Ceded Credit Risk [Line Items]
Ceded Credit Risk [Line Items]
Reinsurance Recoverables
% of Total
Concentration Risk, Percentage
Number of Contracts
Life Settlement Contracts, Investment Method, Number of Contracts, Fiscal Year Maturity [Abstract]
Number of Contracts, 0-1 years
Life Settlement Contracts, Investment Method, Number of Contracts, Maturing in Next Twelve Months
Number of Contracts, 1-2 years
Life Settlement Contracts, Investment Method, Number of Contracts, Maturing in Year Two
Number of Contracts, 2-3 years
Life Settlement Contracts, Investment Method, Number of Contracts, Maturing in Year Three
Number of Contracts, 3-4 years
Life Settlement Contracts, Investment Method, Number of Contracts, Maturing in Year Four
Number of Contracts, 4-5 years
Life Settlement Contracts, Investment Method, Number of Contracts, Maturing in Year Five
Number of Contracts, thereafter
Life Settlement Contracts, Investment Method, Number of Contracts, Maturing after Year Five
Number of Contracts, total
Life Settlement Contracts, Investment Method, Number of Contracts
Carrying Value
Life Settlement Contracts, Investment Method, Carrying Amount, Fiscal Year Maturity [Abstract]
Carrying Value, 0-1 years
Life Settlement Contracts, Investment Method, Carrying Amount, Maturing in Next Twelve Months
Carrying Value, 1-2 years
Life Settlement Contracts, Investment Method, Carrying Amount, Maturing in Year Two
Carrying Value, 2-3 years
Life Settlement Contracts, Investment Method, Carrying Amount, Maturing in Year Three
Carrying Value, 3-4 years
Life Settlement Contracts, Investment Method, Carrying Amount, Maturing in Year Four
Carrying Value, 4-5 years
Life Settlement Contracts, Investment Method, Carrying Amount, Maturing in Year Five
Carrying Value, thereafter
Life Settlement Contracts, Investment Method, Carrying Amount, Maturing after Year Five
Carrying Value, total
Life Settlement Contracts, Investment Method, Carrying Amount
Face Value (Death Benefits)
Life Settlement Contracts, Investment Method, Face Value, Fiscal Year Maturity [Abstract]
Face Value (Death Benefits), 0-1 years
Life Settlement Contracts, Investment Method, Face Value, Maturing in Next Twelve Months
Face Value (Death Benefits), 1-2 years
Life Settlement Contracts, Investment Method, Face Value, Maturing in Year Two
Face Value (Death Benefits), 2-3 years
Life Settlement Contracts, Investment Method, Face Value, Maturing in Year Three
Face Value (Death Benefits), 3-4 years
Life Settlement Contracts, Investment Method, Face Value, Maturing in Year Four
Face Value (Death Benefits), 4-5 years
Life Settlement Contracts, Investment Method, Face Value, Maturing in Year Five
Face Value (Death Benefits), thereafter
Life Settlement Contracts, Investment Method, Face Value, Maturing after Year Five
Face Value (Death Benefits), total
Life Settlement Contracts, Investment Method, Face Value
Earnings Per Share
Earnings Per Share [Text Block]
Taxation
Income Tax Disclosure [Text Block]
Significant New Business
Significant New Business [Text Block]
Significant new business.
Goodwill, Intangible Assets and Deferred Charge
Goodwill and Intangible Assets Disclosure [Text Block]
Significant Accounting Policies
Significant Accounting Policies [Text Block]
Range [Axis]
Range [Axis]
Range [Domain]
Range [Domain]
Minimum
Minimum [Member]
Maximum
Maximum [Member]
Fixed income hedge funds
Hedge Funds [Member]
Real estate debt fund
Real Estate Funds [Member]
CLO equity funds
Clo Equity Funds [Member]
Clo Equity Funds [Member]
CLO Equity Fund One
CLO Equity Fund One [Member]
CLO Equity Fund One [Member]
CLO Equity Fund Two
CLO Equity Fund Two [Member]
CLO Equity Fund Two [Member]
Private equities and private equity funds
Private Equity Funds [Member]
Commercial mortgage-backed securities
Mortgage Backed And Asset Backed Securities At Fair Value
Mortgage Backed And Asset Backed Securities At Fair Value
Senior secured loans
Senior Notes
Number of securities classified as available-for-sale in an unrealized loss position
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions
Number of securities classified as available-for-sale in an unrealized loss position for twelve months or longer
Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions, Greater than or Equal to One Year
Number of securities classified as held-to-maturity in an unrealized loss position
Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions
Number of securities classified as held-to-maturity in an unrealized loss position for twelve months or longer
Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions Greater Than Or Equal To One Year
Held-to-maturity, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions Greater Than Or Equal To One Year
Imposed lock-up period (up to) (years)
Fair Value Investments Entities That Calculate Net Asset Value Per Share Redemption Restriction Period In Effect One
Period when redemption restriction has been in effect for investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure), in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.
Number of days to give notice for quarterly hedge fund redemptions
Notice Period For Redemption Of Hedge Fund
Notice period for redemption of hedge fund.
Redemption request description
Debt Instrument, Redemption, Description
Redemption request period (days)
Redemption Request Period
Redemption Request Period
Number of CLO equity funds
Number of Funds Invested in Equity Tranches of Term-Financed Securitizations of Diversified Pools of Corporate Bank Loans
Number of Funds Invested in Equity Tranches of Term-Financed Securitizations of Diversified Pools of Corporate Bank Loans
Other investments, fair value
Other Investments, Fair Value Disclosure
Other Investments, Fair Value Disclosure
CLO equity fund pay out period (years)
Equity Fund, Payout Period
Equity Fund, Payout Period
Gates or side-pocket investments
Fair Value Investments, Gated Or Side Pocket Investments
Fair Value Investments, Gated Or Side Pocket Investments
Unfunded commitments
Other investments, at cost
Other Investments and Securities, at Cost
Amount of net investment income included in earnings attributable to investments in life settlements
Net Investment Income Attributable To Investment In Life Settlements
Net investment income attributable to investment in life settlements.
Impairment charges recognized in the period
Other than Temporary Impairment Losses, Investments
Life insurance premiums payable in 2017
Life Settlement Contracts, Fair Value, Maturing in Next Twelve Months
Life insurance premiums payable in 2018
Life Settlement Contracts, Fair Value, Maturing in Year Two
Life insurance premiums payable in 2019
Life Settlement Contracts, Fair Value, Maturing in Year Three
Life insurance premiums payable in 2020
Life Settlement Contracts, Fair Value, Maturing in Year Four
Life insurance premiums payable in 2021
Life Settlement Contracts, Fair Value, Maturing in Year Five
Proceeds from sales of available-for-sale securities
Proceeds from Sale of Available-for-sale Securities
Restricted assets, including restricted cash
Other Restricted Assets
Statement of Financial Position [Abstract]
ASSETS
Assets [Abstract]
Short-term investments, trading, at fair value
Trading Securities, Debt
Short-term investments, available-for-sale, at fair value (amortized cost: 2016 — $7,689; 2015 — $8,630)
Available-for-sale Securities, Debt Securities, Current
Fixed maturities, trading, at fair value
Trading Securities Debt Non Current
Fixed maturities, trading, at fair value (amortized cost: 2010 - $241,587; 2009 - $85,775)
Fixed maturities, held-to-maturity, at amortized cost
Held-to-maturity Securities, Noncurrent
Fixed maturities, available-for-sale, at fair value (amortized cost: 2016 — $282,345; 2015 — $300,160)
Available-for-sale Securities, Debt Securities, Noncurrent
Equities, trading, at fair value
Trading Securities, Equity
Other investments, at fair value
Other Investments
Total investments
Investments
Cash and cash equivalents
Restricted cash and cash equivalents
Restricted Cash and Cash Equivalents
Premiums receivable
Premiums Receivable, Net
Deferred tax assets
Deferred Income Tax Assets, Net
Prepaid reinsurance premiums
Prepaid Reinsurance Premiums
Reinsurance balances recoverable
Deferred acquisition costs
Deferred Policy Acquisition Costs
Goodwill and intangible assets
Intangible Assets, Net (Including Goodwill)
Other assets
Other Assets
TOTAL ASSETS
Assets
LIABILITIES
Liabilities [Abstract]
Losses and loss adjustment expenses
Policy benefits for life and annuity contracts
Unearned premiums
Unearned Premiums
Insurance and reinsurance balances payable
Insurance and Reinsurance Payable
Insurance and Reinsurance Payable
Deferred tax liabilities
Deferred Income Tax Liabilities, Net
Loans payable
Other liabilities
Other Liabilities
TOTAL LIABILITIES
Liabilities
COMMITMENTS AND CONTINGENCIES
Commitments and Contingencies
REDEEMABLE NONCONTROLLING INTEREST
Redeemable Noncontrolling Interest, Equity, Carrying Amount
SHAREHOLDERS’ EQUITY
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Ordinary shares
Common Stock, Value, Issued
Treasury shares at cost (Series A non-voting convertible ordinary shares 2016 and 2015: 2,972,892)
Treasury Stock, Value
Additional paid-in capital
Additional Paid in Capital, Common Stock
Accumulated other comprehensive loss
Accumulated Other Comprehensive Income (Loss), Net of Tax
Retained earnings
Retained Earnings (Accumulated Deficit)
Total Enstar Group Limited Shareholders’ Equity
Stockholders' Equity Attributable to Parent
TOTAL SHAREHOLDERS’ EQUITY
TOTAL LIABILITIES, REDEEMABLE NONCONTROLLING INTEREST AND SHAREHOLDERS’ EQUITY
Liabilities and Equity
Investments, All Other Investments [Abstract]
Schedule of Life and Annuity Benefits
Schedule Of Life And Annuity Benefits [Table Text Block]
Schedule Of Life And Annuity Benefits [Table Text Block]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table]
Equity Securities
Equity Securities [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]
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]
Beginning fair value
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value
Purchases
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases
Sales
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Sales
Total realized and unrealized gains (losses)
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Earnings
Net transfers into (out of) Level 3
Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Transfers, Net
Ending fair value
Employee Benefits
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]
Amortized Cost, One year or less
Trading Securities Debt Maturities Within One Year Amortized Cost
Trading securities debt maturities within one year amortized cost.
Amortized Cost, More than one year through two years
Trading Securities Debt Maturities After One Through Two Years Amortized Cost
Trading securities debt maturities after one through two years amortized cost.
Amortized Cost, More than two years through five years
Trading Securities Debt Maturities After Two Years Through Five Years Amortized Cost
Trading securities debt maturities after two years through five years amortized cost.
Amortized Cost, More than five years through ten years
Trading Securities Debt Maturities After Five Years Through Ten Years Amortized Cost
Trading securities debt maturities after five years through ten years amortized cost.
Amortized Cost, More than ten years
Trading Securities Debt Maturities After Ten Years Amortized Cost
Trading securities debt maturities after ten years amortized cost.
Total amortized cost
Trading Securities, Debt, Amortized Cost
Fair Value, One year or less
Trading Securities Debt Maturities Within One Year Fair Value
Trading securities debt maturities within one year fair value.
Fair Value, More than one year through two years
Trading Securities Debt Maturities After One Through Two Years Fair Value
Trading securities debt maturities after one through two years fair value.
Fair Value, More than two years through five years
Trading Securities Debt Maturities After Two Years Through Five Years Fair Value
Trading securities debt maturities after two years through five years fair value.
Fair Value, More than five years through ten years
Trading Securities Debt Maturities After Five Years Through Ten Years Fair Value
Trading securities debt maturities after five years through ten years fair value.
Fair Value, More than ten years
Trading Securities Debt Maturities After Ten Years Fair Value
Trading securities debt maturities after ten years fair value.
Total fair value
Percentage of Total Fair Value, One year or less
Trading Securities Debt Maturities Within One Year Percent Of Fair Value
Trading securities debt maturities within one year percent of fair value.
Percentage of Total Fair Value, More than one year through two years
Trading Securities Debt Maturities After One Year Through Two Years Percent Fair Value
Trading securities debt maturities after one year through two years percent fair value.
Percentage of Total Fair Value, More than two years through five years
Trading Securities Debt Maturities After Two Years Through Five Years Percent Of Fair Value
Trading securities debt maturities after two years through five years percent of fair value.
Percentage of Total Fair Value, More than five years through ten years
Trading Securities Debt Maturities Five Years Through Ten Years Percent Of Fair Value
Trading securities debt maturities five years through ten years percent of fair value.
Percentage of Total Fair Value, More than ten years
Trading Securities Debt Maturities After Ten Years Percent Of Fair Value
Trading securities debt maturities after ten years percent of fair value.
Percentage of Total Fair Value
Trading Securities Percentage Of Fair Value
Trading securities percentage of fair value.
Reconciliation of Assets from Segment to Consolidated [Table]
Reconciliation of Assets from Segment to Consolidated [Table]
Consolidation Items [Axis]
Consolidation Items [Axis]
Consolidation Items [Domain]
Consolidation Items [Domain]
Operating Segments
Operating Segments [Member]
Eliminations
Intersegment Eliminations [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets
Policy Benefits for Life and Annuity Contracts
Life Settlement Contracts, Disclosure [Text Block]
Three Non-Rated Reinsurers
Three Non-Rated Reinsurers [Member]
Three Non-Rated Reinsurers [Member]
One Non-Rated Reinsurer
One Non-Rated Reinsurer [Member]
One Non-Rated Reinsurer [Member]
One Reinsurer Accounting for More than 10% of Total Reinsurance Balances Receivable
One Reinsurer Accounting For More Than Ten Percentage Of Reinsurance Balances Receivable [Member]
One Reinsurer Accounting For More Than Ten Percentage Of Total Reinsurance Balances Receivable.
Two Reinsurers Accounting for More than 10% of Total Reinsurance Balances Receivable
Two Reinsurer Accounting for More than Ten Percentage of Reinsurance Balances Receivable [Member]
Two Reinsurer Accounting for More than Ten Percentage of Reinsurance Balances Receivable [Member]
Number of external reinsurers rated A- or higher
Number of External Reinsurers Rated A- or Higher
Number of External Reinsurers Rated A- or Higher
Increase (decrease) in reinsurance recoverable
Reinsurance recoverable major reinsurer (percent)
Income Statement [Abstract]
INCOME
Revenues [Abstract]
Net premiums earned
Fees and commission income
Fees and Commissions
Net investment income
Net Investment Income
Other income
Other Revenue, Net
Total income
Revenues
EXPENSES
Benefits, Losses and Expenses [Abstract]
Net incurred losses and loss adjustment expenses
Net Reduction In Ultimate Loss And Loss Adjustment Expense Liabilities
Total net reduction in ultimate loss and loss adjustment expense liabilities.
Life and annuity policy benefits
Policyholder Benefits and Claims Incurred, Net, Life and Annuity
Acquisition costs
Acquisition Costs, Period Cost
Salaries and benefits
Labor and Related Expense
General and administrative expenses
General and Administrative Expense
Interest expense
Interest Expense
Net foreign exchange losses (gains)
Foreign Currency Transaction Gain (Loss), before Tax
Total expenses
Benefits, Losses and Expenses
EARNINGS BEFORE INCOME TAXES
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest
INCOME TAXES
Income Tax Expense (Benefit)
NET EARNINGS
Less: Net losses (earnings) attributable to noncontrolling interest
NET EARNINGS ATTRIBUTABLE TO ENSTAR GROUP LIMITED
EARNINGS PER SHARE — BASIC
Net earnings per ordinary share attributable to Enstar Group Limited shareholders (dollars per share)
EARNINGS PER SHARE — DILUTED
Net earnings per ordinary share attributable to Enstar Group Limited shareholders (dollars per share)
Weighted average ordinary shares outstanding - diluted (shares)
Investments
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]
Short-term investments, available-for-sale, at fair value, amortized cost
Available-for-sale Securities, Short-term Investments, Amortized Cost
Fixed maturities, available-for-sale, at fair value, amortized cost
Closed Block Investments, Fixed Maturity, Available-for-sale, Amortized Cost
Ordinary shares, par value (dollars per share)
Common Stock, Par or Stated Value Per Share
Ordinary shares, authorized (shares)
Common Stock, Shares Authorized
Ordinary shares, shares issued (shares)
Common Stock, Shares, Issued
Ordinary shares, shares outstanding (shares)
Common Stock, Shares, Outstanding
Treasury shares at cost (Series A non-voting convertible ordinary shares) (shares)
Treasury Stock, Shares
Segment Information
Segment Reporting Disclosure [Text Block]
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Stockholders' Equity Attributable to Noncontrolling Interest [Roll Forward]
Balance at beginning of period
Capital contributions
Business Acquisition Purchase Price Allocation Redeemable Non Controlling Interest
Business Acquisition Purchase Price Allocation Redeemable Non Controlling Interest
Dividends paid
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders
Net earnings (loss) attributable to RNCI
Net Income (Loss) Attributable to Redeemable Noncontrolling Interest
Accumulated other comprehensive loss attributable to RNCI
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest
Transfer from (to) noncontrolling interest
Noncontrolling Interest, Decrease from Deconsolidation
Accretion of RNCI to redemption value
Balance at end of period
Loans Payable
Loans Payable (Text Block)
Loans payable.
Investment Holdings [Table]
Investment Holdings [Table]
Fixed income funds
Fixed Income Funds [Member]
Fixed income hedge funds
Fixed Income Funds General [Member]
Fixed Income Funds General [Member]
Equity funds
Equity Funds [Member]
Multi-strategy hedge fund
Hedge Funds, Multi-strategy [Member]
Call options on equities
Call Option [Member]
Other
Miscellaneous Investments [Member]
Investment Holdings [Line Items]
Investment Holdings [Line Items]
Forward Contracts Outstanding, Estimated Fair Value, Change in Fair Value and Realized Gains of Derivative Instruments
Schedule of Foreign Exchange Contracts, Statement of Financial Position [Table Text Block]
Fair Value, by Balance Sheet Grouping [Table]
Fair Value, by Balance Sheet Grouping [Table]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Other investments measured at fair value
Other investments measured at NAV as practical expedient
Alternative Investments, Fair Value Disclosure
Total other investments shown on balance sheets
Investments, Including Net Asset Value, Fair Value Disclosure
Investments, Including Net Asset Value, Fair Value Disclosure
Non-Life Run-of Segment, Atrium Segment, and Starstone Segment
Non-Life Run-of Segment, Atrium Segment, and Starstone Segment [Member]
Non-Life Run-of Segment, Atrium Segment, and Starstone Segment [Member]
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Balance as at January 1
Less: reinsurance reserves recoverable
Reinsurance Reserves Recoverable
Reinsurance reserves recoverable.
Other assets - Deferred Charge, Beginning balance
Deferred Charge On Retroactive Reinsurance
Deferred charge on retroactive reinsurance.
Net balance as at January 1
Statutory Accounting Practice Statutory Capital And Surplus Required
Statutory Accounting Practice Statutory Capital and Surplus Required
Net incurred losses and LAE:
Liability for Unpaid Claims and Claims Adjustment Expense, Activity in Liability [Abstract]
Current period
Prior periods
Total net incurred losses and LAE
Net paid losses:
Liability for Unpaid Claims and Claims Adjustment Expense, Claims Paid [Abstract]
Current period
Prior periods
Total net paid losses
Net Paid Losses Less Paid Losses Related To Bad Debt Recovery
Net paid losses less paid losses related to bad debt recovery.
Effect of exchange rate movement
Liability For Unpaid Claims And Claims Translation Adjustment
Liability for unpaid claims and claims translation adjustment.
Acquired on purchase of subsidiaries
Liability for Unpaid Claims and Claims Adjustment Expense, Business Acquisitions
Assumed business
Reinsurance Effect On Claims And Benefits Incurred Amount Acquired
Reinsurance effect on claims and benefits incurred amount acquired.
Net balance as at March 31
Liability for Unpaid Claims and Claims Adjustment Expense, Net
Plus: reinsurance reserves recoverable
Other assets - Deferred Charge, Ending balance
Balance as at March 31
Schedule of Held-to-maturity Securities [Table]
Schedule of Held-to-maturity Securities [Table]
Schedule of Held-to-maturity Securities [Line Items]
Schedule of Held-to-maturity Securities [Line Items]
Amortized Cost
Held-to-maturity Securities, Amortized Cost before Other than Temporary Impairment
Gross Unrealized Gains
Held-to-maturity Securities, Accumulated Unrecognized Holding Gain
Gross Unrealized Losses Non-OTTI
Held-to-maturity Securities, Accumulated Unrecognized Holding Loss
Fair Value
Derivative [Table]
Derivative [Table]
Financial Instrument [Axis]
Financial Instrument [Axis]
Financial Instruments [Domain]
Financial Instruments [Domain]
Forward Contracts
Forward Contracts [Member]
Derivative, by Nature [Axis]
Derivative Instrument [Axis]
Derivative, Name [Domain]
Derivative Contract [Domain]
Call options on equities
Foreign Exchange Forward Contract One [Member]
Foreign Exchange Forward Contract One [Member]
Derivative [Line Items]
Derivative [Line Items]
Purchase Date
Derivative, Inception Date
Fair Value
Derivative, Fair Value, Net
Unrealized gains (losses) in net earnings
Gain (Loss) on Foreign Currency Derivative Recorded in Net Earnings
Gain (Loss) on Foreign Currency Derivative Recorded in Net Earnings
Schedule of Segment Reporting Information, by Segment [Table]
Schedule of Segment Reporting Information, by Segment [Table]
Segment Reporting Information [Line Items]
Segment Reporting Information [Line Items]
Net realized and unrealized gains (losses)
Net incurred losses and LAE
Net foreign exchange losses (gains)
Investment Income [Table]
Investment Income [Table]
Fixed maturity investments
Short-term investments and cash and cash equivalents
Short Term Investments And Cash Equivalents [Member]
Short Term Investments And Cash Equivalents [Member]
Equity securities
Other investments
Other Long-term Investments [Member]
Funds held
Funds Held [Member]
Funds Held [Member]
Life settlements and other
Life Settlements and Other [Member]
Life Settlements and Other [Member]
Net Investment Income [Line Items]
Net Investment Income [Line Items]
Gross investment income
Gross Investment Income, Operating
Investment expenses
Investment Income, Investment Expense
Net investment income
Ceded Credit Risk, Collateralization [Axis]
Ceded Credit Risk, Collateralization [Axis]
Ceded Credit Risk, Collateralization [Domain]
Ceded Credit Risk, Collateralization [Domain]
Secured
Ceded Credit Risk, Secured [Member]
Unsecured
Ceded Credit Risk, Unsecured [Member]
Non-life Run-off
Non-life Run Off [Member]
Non-Life Run-Off Segment [Member]
Reinsurers rated A- or above
Reinsurers Rated A- Minus Or Above [Member]
Reinsurers rated A minus or above.
Reinsurers Rated Below A-
Reinsurers Rated Below AMinus [Member]
Reinsurers Rated Below AMinus [Member]
Gross
Reinsurance Recoverables, Gross
Provisions for Bad Debt
Reinsurance Recoverables, Allowance
Net
Provisions as a % of Gross
Weighted Average Provisions For Bad Debt Percentage Of Gross Reinsurance Balances Recoverable
Weighted Average Provisions For Bad Debt Percentage Of Gross Reinsurance Balances Recoverable
Outstanding losses
Reinsurance Recoverable for Unpaid Claims and Claims Adjustments
IBNR
Reinsurance Recoverables, Incurred but Not Reported Claims
Fair value adjustments
Reinsurance Receivables Fair Value Adjustments
Reinsurance receivables fair value adjustments.
Total reinsurance reserves recoverable
Paid losses recoverable
Reinsurance Recoverable for Paid Claims and Claims Adjustments
Schedule Of Goodwill And Intangible Assets [Table]
Schedule Of Goodwill And Intangible Assets [Table]
Schedule Of Goodwill And Intangible Assets [Table]
Schedule Of Goodwill And Intangible Assets [Line Items]
Schedule Of Goodwill And Intangible Assets [Line Items]
Schedule Of Goodwill And Intangible Assets [Line Items]
Goodwill [Roll Forward]
Goodwill [Roll Forward]
Goodwill, Beginning balance
Goodwill
Goodwill, Acquired during the year
Goodwill, Acquired During Period
Goodwill, Ending balance
Finite-lived Intangible Assets [Roll Forward]
Finite-lived Intangible Assets [Roll Forward]
Intangible assets with a definite life, Beginning balance
Intangible assets with a definite life, Acquired during the year
Finite-lived Intangible Assets Acquired
Intangible assets with a definite life, Amortization
Intangible assets with a definite life, Ending balance
Indefinite-lived Intangible Assets [Roll Forward]
Indefinite-lived Intangible Assets [Roll Forward]
Intangible assets with an indefinite life, Beginning balance
Intangible assets with an indefinite life, Acquired during the year
Indefinite-lived Intangible Assets Acquired
Intangible assets with an indefinite life, Ending balance
Goodwill and Intangible Assets [Roll Forward]
Goodwill and Intangible Assets [Roll Forward]
Goodwill and Intangible Assets [Roll Forward]
Goodwill and intangible assets, Beginning Balance
Goodwill and intangible assets, Acquired during the year
Goodwill And Intangible Assets Acquired During Period
Goodwill And Intangible Assets Acquired During Period
Intangible assets with a definite life, Amortization
Goodwill and intangible assets, Ending balance
Deferred Charges [Roll Forward]
Deferred Charges [Roll Forward]
Deferred Charges [Roll Forward]
Other assets - Deferred Charge, Acquired during the year
Deferred Charge On Retroactive Reinsurance Acquired
Deferred charge on retroactive reinsurance acquired.
Other assets - Deferred Charge, Amortization
Amortization Of Deferred Charge On Retroactive Reinsurance
Amortization of deferred charge on retroactive reinsurance acquired.
Other Investments
Other Debt Obligations [Member]
Gross realized gains on fixed maturity securities, available-for-sale
Available-for-sale Securities, Gross Realized Gains
Gross realized (losses) on fixed maturity securities, available-for-sale
Available-for-sale Securities, Gross Realized Losses
Net realized gains (losses) on trading securities
Trading Securities, Realized Gain (Loss)
Total net realized gains (losses) on sale
Net unrealized gains (losses) on trading securities
Trading Securities, Change in Unrealized Holding Gain (Loss)
Total net unrealized gains
Net realized and unrealized gains
Sussex Insurance Company
Sussex Insurance Company [Member]
Sussex Insurance Company [Member]
Nonrecurring Adjustment [Axis]
Nonrecurring Adjustment [Axis]
Nonrecurring Adjustment [Domain]
Nonrecurring Adjustment [Domain]
Reduction in Estimates of Net Ultimate Losses
Loss Adjustment Expense [Member]
Loss Adjustment Expense [Member]
Subsegments [Axis]
Subsegments [Axis]
Subsegments [Domain]
Subsegments [Domain]
Net Increase (decrease) in ultimate loss and loss adjustment expense liabilities
Net Increase Reduction In Ultimate Loss And Loss Adjustment Expense Liabilities
Net Increase Reduction In Ultimate Loss And Loss Adjustment Expense Liabilities
Losses and loss adjustment expenses relating to prior periods
Losses And Loss Adjustment Expenses Relating To Prior Periods
Losses And Loss Adjustment Expenses Relating To Prior Periods
Increase (reduction) in estimates of net ultimate losses
(Increase) reduction in provisions for bad debt
Reduction in estimates of unallocated loss adjustment expense liabilities
Reductions in IBNR reserves
Net (reduction) increase in ultimate losses and loss adjustment expense liabilities
Reduction in estimates of unallocated loss adjustment expense liabilities
Reduction In Provisions For Unallocated Loss And Loss Adjustment Expense Liabilities
Reduction in provisions for unallocated loss and loss adjustment expense liabilities