SiriusPoint (SPNT) 10-K 28 Feb 20 2019 FY Annual report Financial data

Cover

Cover - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Feb. 25, 2020	Jun. 30, 2019
Cover page.
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2019
Document Transition Report	false
Entity File Number	001-35039
Entity Registrant Name	THIRD POINT REINSURANCE LTD.
Entity Incorporation, State or Country Code	D0
Entity Tax Identification Number	98-1039994
Entity Address, Address	3 Waterloo Lane
Entity Address, City	Pembroke
Entity Address, Country	BM
Entity Address, Postal Zip Code	HM 08
City Area Code	441
Local Phone Number	542 3300
Title of each class	Common Shares, $0.10 par value
Trading Symbol	TPRE
Name of each exchange on which registered	NYSE
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Public Float			$ 857.3
Entity Common Stock, Shares Outstanding		94,213,343
Documents Incorporated by Reference	Part III incorporates information from certain portions of the registrant’s definitive proxy statement to be filed with the Securities and Exchange Commission within 120 days after the fiscal year ended December 31, 2019 .
Entity Central Index Key	0001576018
Current Fiscal Year End Date	--12-31
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	FY
Amendment Flag	false

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Assets
Investment in related party investment fund, at fair value (cost - $891,850; 2018 - $1,564,850)	$ 860,630	$ 1,284,004
Equity securities, trading, at fair value (cost - N/A; 2018 - N/A)	4,000
Debt securities, trading, at fair value (cost - $129,330; 2018 - $252,362)	125,071	239,640
Other investments, at fair value	4,000	84
Total investments	989,701	1,523,728
Cash and cash equivalents	639,415	104,183
Restricted cash and cash equivalents	1,014,543	609,154
Due from brokers	0	1,411
Interest and dividends receivable	2,178	1,316
Reinsurance balances receivable	596,120	602,448
Deferred acquisition costs, net	154,717	203,842
Unearned premiums ceded	16,945	17,552
Loss and loss adjustment expenses recoverable	5,520	2,031
Other assets	20,555	20,569
Total assets	3,439,694	3,086,234
Liabilities
Accounts payable and accrued expenses	17,816	7,261
Reinsurance balances payable	81,941	69,701
Deposit liabilities	172,259	145,342
Unearned premium reserves	524,768	602,936
Loss and loss adjustment expense reserves	1,111,692	937,157
Participation agreement with related party investment fund	0	2,297
Interest and dividends payable	3,055	3,055
Senior notes payable, net of deferred costs	114,089	113,911
Total liabilities	2,025,620	1,881,660
Commitments and contingent liabilities
Shareholders’ equity
Preference shares (par value $0.10; authorized, 30,000,000; none issued)	0	0
Common shares (issued and outstanding: 94,225,498; 2018 - 93,639,610)	9,423	9,364
Additional paid-in capital	927,704	918,882
Retained earnings	476,947	276,328
Shareholders’ equity attributable to Third Point Re common shareholders	1,414,074	1,204,574
Total liabilities and shareholders’ equity	$ 3,439,694	$ 3,086,234

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Assets
Other investments, related party investment fund, cost	$ 891,850	$ 1,564,850
Debt securities, trading, at fair value (cost - $129,330; 2018 - $252,362)	$ 129,330	$ 252,362
Shareholders’ equity
Preference shares, par value (in dollars per share)	$ 0.10	$ 0.10
Preference shares, shares authorized (in shares)	30,000,000	30,000,000
Preference shares, shares issued (in shares)	0	0
Preference shares, shares outstanding (in shares)	0	0
Common Stock, Par or Stated Value Per Share	$ 0.10	$ 0.10
Common share, shares authorized (in shares)	300,000,000	300,000,000
Common share, shares issued (in shares)	94,225,498	93,639,610
Common share, shares outstanding (in shares)	94,225,498	93,639,610
Treasury Stock, Shares	0	0

Consolidated Statements of Inco

Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues
Gross premiums written	$ 631,846	$ 578,252	$ 641,620
Gross premiums ceded	(9,265)	(19,895)	(2,475)
Net premiums written	622,581	558,357	639,145
Change in net unearned premium reserves	77,561	63,085	(92,087)
Net premiums earned	700,142	621,442	547,058
Investment income, net, related party investment fund	249,626	(280,847)	0
Net investment income before management and performance fees to related parties	32,934	59,259	522,664
Management and performance fees to related parties (1)	0	(29,845)	(130,711)
Net investment income (loss)	282,560	(251,433)	391,953
Total revenues	982,702	370,009	939,011
Expenses
Loss and loss adjustment expenses incurred, net	403,499	438,414	370,058
Acquisition costs, net	295,626	206,498	188,904
General and administrative expenses	53,763	36,241	53,103
Other expenses	(16,619)	(9,610)	(12,674)
Interest expense	8,228	8,228	8,225
Foreign exchange (gains) losses	(3,635)	7,503	(12,300)
Total expenses	781,370	691,488	645,264
Income (loss) before income tax (expense) benefit	201,332	(321,479)	293,747
Income tax (expense) benefit	(713)	4,010	(11,976)
Net income (loss)	200,619	(317,469)	281,771
Net income attributable to noncontrolling interests in related party	0	(223)	(3,973)
Net income (loss) available to Third Point Re common shareholders	$ 200,619	$ (317,692)	$ 277,798
Earnings (loss) per share available to Third Point Re common shareholders
Basic (in dollars per share)	$ 2.18	$ (3.27)	$ 2.71
Diluted (in dollars per share)	$ 2.16	$ (3.27)	$ 2.64
Weighted average number of common shares used in the determination of earnings (loss) per share
Basic (in shares)	91,835,990	97,054,315	102,264,094
Diluted (in shares)	92,652,316	97,054,315	105,227,038

Consolidated Statements of Shar

Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Total	Common shares	Treasury shares	Additional paid-in capital	Retained earnings	Noncontrolling interests in related party
Balance, beginning of year at Dec. 31, 2016		$ 10,650	$ (7,389)	$ 1,094,568	$ 316,222
Increase (Decrease) in Stockholders' Equity
Issuance of common shares, net		73		1,432
Common shares repurchased and retired		0		0
Repurchase of common shares			$ (40,864)
Retirement of treasury shares	0		0
Share compensation expense				3,599
Net income (loss)	$ 281,771				281,771
Net income attributable to noncontrolling interests in related party	(3,973)				(3,973)
Balance, end of year at Dec. 31, 2017	1,661,496	10,723	$ (48,253)	1,099,599	594,020	$ 5,407
Increase (Decrease) in Stockholders' Equity
Shareholders’ equity attributable to Third Point Re common shareholders	$ 1,656,089
Issuance of common shares, net		67		(141)
Common shares repurchased and retired		(1,426)		(185,532)
Repurchase of common shares			$ 0
Retirement of treasury shares	14,256,043		48,253,000
Share compensation expense				4,956
Net income (loss)	$ (317,469)				(317,469)
Net income attributable to noncontrolling interests in related party	(223)				(223)
Balance, end of year at Dec. 31, 2018	1,204,574	9,364	$ 0	918,882	276,328	0
Increase (Decrease) in Stockholders' Equity
Shareholders’ equity attributable to Third Point Re common shareholders	$ 1,204,574
Issuance of common shares, net		59		1,761
Common shares repurchased and retired		0		0
Repurchase of common shares			$ 0
Retirement of treasury shares	0		0
Share compensation expense				7,061
Net income (loss)	$ 200,619				200,619
Net income attributable to noncontrolling interests in related party	0				0
Balance, end of year at Dec. 31, 2019	1,414,074	$ 9,423	$ 0	$ 927,704	$ 476,947	$ 0
Increase (Decrease) in Stockholders' Equity
Shareholders’ equity attributable to Third Point Re common shareholders	$ 1,414,074

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Statement of Cash Flows [Abstract]
Net income (loss)	$ 200,619	$ (317,469)	$ 281,771
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Share compensation expense	7,061	4,956	3,599
Net interest expense (income) on deposit liabilities	5,879	(1,273)	2,800
Net realized and unrealized gain on investments and derivatives	2,522	34,145	480,045
Net realized and unrealized (gain) loss on investment in related party investment fund	(249,626)	280,847	0
Net foreign exchange (gains) losses	3,635	(7,503)	12,300
Amortization of premium and accretion of discount, net	(1,382)	4,134	473
Changes in assets and liabilities:
Reinsurance balances receivable	30,039	(120,620)	(86,606)
Deferred acquisition costs, net	49,125	54,951	(37,175)
Increase (Decrease) in Prepaid Reinsurance Premiums	607	(16,503)	(354)
Increase (Decrease) in Reinsurance Recoverable	(3,489)	(918)	(1,112)
Other assets	(172)	(13,486)	9,137
Interest and dividends receivable, net	(862)	(2,716)	3,563
Unearned premium reserves	(78,168)	(46,582)	92,442
Loss and loss adjustment expense reserves	(157,849)	(225,670)	(97,922)
Accounts payable and accrued expenses	10,555	(24,684)	24,212
Reinsurance balances payable	11,964	28,728	(1,463)
Net cash provided by (used in) operating activities	141,112	13,387	(78,536)
Investing activities
Proceeds from redemptions from related party investment fund	760,000	142,968	0
Contributions to related party investment fund	(87,000)	(136,626)	0
Change in participation agreement with related party investment fund	(2,297)	(20,852)	0
Purchases of investments	(331,463)	(3,483,319)	(3,099,525)
Proceeds from sales and maturities of investments	446,206	3,475,515	3,228,251
Purchases of investments to cover short sales	0	(853,798)	(791,753)
Proceeds from short sales of investments	0	800,508	1,048,552
Change in due to/from brokers, net	1,411	482,778	(149,898)
Increase (decrease) in securities sold under an agreement to repurchase	0	(29,618)	29,618
Net cash provided by investing activities	786,857	377,556	265,245
Financing activities
Proceeds from issuance of Third Point Re common shares, net of costs	1,888	0	1,505
Payments Related to Tax Withholding for Share-based Compensation	68	74	0
Purchases of Third Point Re common shares under share repurchase program	0	(138,705)	(40,864)
Net proceeds from deposit liability contracts	10,832	9,790	19,113
Change in total noncontrolling interests in related party, net	0	(97,950)	73,979
Net cash provided by (used in) financing activities	12,652	(226,939)	53,733
Net increase in cash, cash equivalents and restricted cash	940,621	164,004	240,442
Cash, cash equivalents and restricted cash at beginning of year	713,337	549,333	308,891
Cash, cash equivalents and restricted cash at end of year	1,653,958	713,337	549,333
Supplementary information
Interest paid in cash	8,051	25,578	21,394
Income taxes paid in cash	10	7,274	7,810
Non-cash Transfer of Investment Asset to Related Party Investments Fund	$ 0	$ 1,571,191	$ 0

Organization

Organization	12 Months Ended
	Dec. 31, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	Third Point Reinsurance Ltd. (together with its consolidated subsidiaries, “Third Point Re” or the “Company”) was incorporated under the laws of Bermuda on October 6, 2011. Through its reinsurance subsidiaries, the Company is a provider of global property and casualty reinsurance products. The Company operates through two licensed reinsurance subsidiaries, Third Point Reinsurance Company Ltd. (“Third Point Re BDA”), a Bermuda reinsurance company that commenced operations in January 2012, and Third Point Reinsurance (USA) Ltd. (“Third Point Re USA”). Third Point Re USA is a Bermuda reinsurance company that was incorporated on November 21, 2014 and commenced operations in February 2015. Third Point Re USA made an election under Section 953(d) of the U.S. Internal Revenue Code of 1986, as amended, to be taxed as a U.S. entity. Third Point Re USA prices and underwrites reinsurance business from an office in the United States. Third Point Re USA is a wholly owned subsidiary of Third Point Re (USA) Holdings Inc. (“TPRUSA”), an intermediate holding company based in the U.S., which is a wholly owned subsidiary of Third Point Re (UK) Holdings Ltd. (“Third Point Re UK”), an intermediate holding company based in the United Kingdom. Third Point Re UK is a wholly owned subsidiary of Third Point Re. In August 2012, the Company established a wholly-owned subsidiary in the United Kingdom, Third Point Re Marketing (UK) Limited (“TPRUK”). In May 2013, TPRUK was licensed as an insurance intermediary by the UK Financial Conduct Authority. These consolidated financial statements include the results of the Company and have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). All significant intercompany accounts and transactions have been eliminated. Tabular amounts are in U.S. Dollars in thousands, except share amounts, unless otherwise noted.

Significant accounting policies

Significant accounting policies	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Significant accounting policies	The following is a summary of the significant accounting and reporting policies adopted by the Company: Use of estimates The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported and disclosed amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The major estimates reflected in the Company’s consolidated financial statements include, but are not limited to, the loss and loss adjustment expense reserves, estimates of written and earned premiums and fair value of financial instruments. Cash, cash equivalents and restricted cash Cash and cash equivalents consist of cash held in banks and other short-term, highly liquid investments with original maturity dates of ninety days or less. Restricted cash and cash equivalents consist of cash held in trust accounts securing obligations under certain reinsurance contracts and cash held with brokers and in trust accounts securing letters of credit issued under credit facilities. Premium revenue recognition To the extent that the amount of written premium is estimable, the Company estimates the ultimate premiums for the entire contract period and records this estimate at the inception of the contract. For contracts where the full written premium is not estimable at inception, the Company records written premium for the portion of the contract period for which the amount is estimable. These estimates are based primarily on information in the underlying contracts as well as information provided by clients and/or brokers. Changes in premium estimates are expected and may result in adjustments in any reporting period. These estimates change over time as additional information regarding the underlying business volume is obtained. Any subsequent adjustments arising on such estimates are recorded in the period in which they are determined. Premiums written are earned over the exposure period in proportion to the period of risk covered. Reinstatement premiums are earned when written. Unearned premiums represent the portion of premiums written that relate to the remaining term of the underlying policies in force. Premiums for retroactive exposures in reinsurance contracts are earned at the inception of the contract, as all of the underlying loss events covered by these exposures occurred in the past. If the estimated loss and loss adjustment expense reserve differs from the premium received at inception of a retroactive reinsurance contract, the resulting difference is deferred and recognized over the estimated claim payment period of the related contract with the periodic amortization reflected in earnings as a component of loss and loss adjustment expenses incurred. Reinsurance premiums ceded From time to time, the Company reduces the risk of losses on business written by reinsuring certain risks and exposures with other reinsurers. The Company remains liable to the extent that any retrocessionaire fails to meet its obligations and to the extent that the Company does not hold sufficient security for their unpaid obligations. Ceded premiums are written during the period in which the risks incept and are earned over the contract period in proportion to the period of risk covered. Unearned premiums ceded consist of the unexpired portion of reinsurance ceded. Reinsurance Reinsurance recoverables include claims we paid and estimates of unpaid losses and loss adjustment expenses that are subject to reimbursement under reinsurance and retrocessional contracts. The method for determining reinsurance recoverables for unpaid losses and loss adjustment expenses involves reviewing actuarial estimates of gross unpaid losses and loss adjustment expenses to determine our ability to cede unpaid losses and loss adjustment expenses under our existing reinsurance contracts. This method is continually reviewed and updated and any resulting adjustments are reflected in earnings in the period identified. Reinsurance premiums, commissions and expense reimbursements are accounted for on a basis consistent with those used in accounting for the original policies issued and the term of the reinsurance contracts. Amounts recoverable from reinsurers for losses and loss adjustment expenses for which the Company has not been relieved of its legal obligations to the policyholder are reported as assets. Deferred acquisition costs Acquisition costs consist of commissions, brokerage and excise taxes that are related directly to the successful acquisition of new or renewal reinsurance contracts. These costs are deferred and amortized over the period in which the related premiums are earned. The Company evaluates the recoverability of deferred acquisition costs by determining if the sum of future earned premiums and anticipated investment income is greater than expected future loss and loss adjustment expenses and acquisition costs. If a loss is probable on the unexpired portion of contracts in force, a premium deficiency loss is recognized. As of December 31, 2019 , deferred acquisition costs are considered to be fully recoverable and no premium deficiency has been recorded. Acquisition costs also include profit commissions that are expensed when incurred. Profit commissions are calculated and accrued based on the expected loss experience for contracts and recorded when the current loss estimate indicates that a profit commission is probable under the contract terms. Loss and loss adjustment expense reserves The Company’s loss and loss adjustment expense reserves include case reserves, reserves for losses incurred but not yet reported (“IBNR reserves”) and deferred gains on retroactive reinsurance contracts. Case reserves are established for losses that have been reported, but not yet paid. IBNR reserves represent the estimated loss and loss adjustment expenses that have been incurred by insureds and reinsureds but not yet reported to the insurer or reinsurer, including unknown future development on loss and loss adjustment expenses that are known to the insurer or reinsurer. IBNR reserves are established by management based on actuarially determined estimates of ultimate loss and loss adjustment expenses. Deferred gains represent the underwriting profit related to retroactive exposures in reinsurance contracts at inception and are deferred and amortized over the estimated future settlement period of the contract. Deferred gains are included in loss and loss adjustment expense reserves. If the premium received is lower than the estimated loss and loss adjustment expense reserves assumed at inception of a retroactive reinsurance contract, the resulting difference is deferred and recorded in other assets. This difference is also amortized over the estimated future settlement period of the contract. Inherent in the estimate of ultimate loss and loss adjustment expenses are expected trends in claim severity and frequency and other factors that may vary significantly as claims are settled. Accordingly, ultimate loss and loss adjustment expenses may differ materially from the amounts recorded in the consolidated financial statements. These estimates are reviewed regularly and, as experience develops and new information becomes known, the reserves are adjusted as necessary. Such adjustments, if any, are recorded in the consolidated statements of income (loss) in the period in which they become known. Deposit liabilities Certain contracts do not transfer sufficient insurance risk to be deemed reinsurance contracts and are accounted for using the deposit method of accounting. Management exercises judgment in determining whether contracts transfer sufficient risk to be accounted for as reinsurance contracts. Using the deposit method of accounting, a deposit liability, rather than written premium, is initially recorded based upon the consideration received less any explicitly identified premiums or fees. In subsequent periods, the deposit liability is adjusted by calculating the effective yield on the deposit to reflect actual payments to date and future expected payments. In some cases, the effective yield on the contract may be negative, which will result in the recognition of other income. Fair value measurement The Company determines the fair value of financial instruments in accordance with current accounting guidance, which defines fair value and establishes a three level fair value hierarchy based upon the transparency of inputs used in the valuation of an asset or liability. Fair value is defined as the price that the Company would receive to sell an asset or would pay to transfer a liability in an orderly transaction between market participants at the measurement date. The Company determines the estimated fair value of each individual security utilizing the highest level inputs available. The fair value of the Company’s assets and liabilities, which qualify as financial instruments, approximates the carrying amounts presented in the consolidated balance sheets. U.S. GAAP disclosure requirements establish a framework for measuring fair value, including a three-level hierarchy for fair value measurements based upon the transparency of inputs to the valuation of an asset or liability. The three-level hierarchy of inputs is summarized below: • Level 1 – Quoted prices available in active markets/exchanges for identical investments as of the reporting date. • Level 2 – Observable inputs to the valuation methodology other than unadjusted quoted market prices for identical assets or liabilities in active markets. Level 2 inputs include, but are not limited to, prices quoted for similar assets or liabilities in active markets/exchanges, prices quoted for identical or similar assets or liabilities in markets that are not active and fair values determined through the use of models or other valuation methodologies. • Level 3 – Pricing inputs unobservable for the investment and include activities where there is little, if any, market activity for the investment. The inputs applied in the determination of fair value require significant management judgment and estimation. Inputs refer broadly to the assumptions that market participants would use in pricing the asset or liability, including assumptions about risk. For example, the risk inherent in a particular valuation technique used to measure fair value including such a pricing model and/or the risk inherent in the inputs to the valuation technique. Inputs may be observable or unobservable. Observable inputs are inputs that reflect the assumptions market participants would use in pricing the asset or liability based on market data obtained from sources other than those of the reporting entity. Unobservable inputs are inputs that reflect the reporting entity’s own assumptions about the assumptions market participants would use in pricing the asset or liability developed based on the best information available in the circumstances. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, an investment’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment, and considers factors specific to the investment. Investments Investments - Trading The Company’s investments are classified as “trading securities” and are carried at fair value with changes in fair value included in earnings in the consolidated statements of income (loss) . The fair value of the Company’s investments are based on quoted market prices, or when such prices are not available, by reference to broker or underwriter bid indications, industry recognized pricing vendors, and/or internal pricing valuation techniques. Investment transactions are recorded on a trade date basis with balances pending settlement included in due to/from brokers in the consolidated balance sheets. Realized gains and losses are determined using cost calculated on a specific identification basis. Dividends are recorded on the ex-dividend date. Income and expenses are recorded on the accrual basis including interest and premiums amortized and discounts accreted. Investment in related party investment fund The Company invests in TP Fund, a related party investment fund. The Company’s investment in TP Fund is stated at its fair value, that generally represents the Company’s proportionate interest in TP Fund as reported by the fund based on the net asset value (“NAV”) provided by the fund administrator. Increases or decreases in such fair value are recorded within net investment income from investment in related party investment fund in the Company’s consolidated statements of income. Realized gains or losses upon any redemptions of investments in TP Fund are calculated using the weighted average method. The Company records contributions and withdrawals related to its investments in TP Fund on the transaction date. Derivatives Investments Prior to the change in the investment account structure, derivative instruments within our investment assets managed by our investment manager, Third Point LLC, were recorded in the consolidated balance sheets at fair value, with changes in fair values and realized gains and losses recognized in net investment income (loss) in the consolidated statements of income (loss) . Derivatives served as a key component of the Company’s investment strategy and were utilized primarily to structure the portfolio, or individual investments, and to economically match the investment objectives of the Company. The Company’s derivatives did not qualify as hedges for financial reporting purposes and were recorded in the consolidated balance sheets on a gross basis and not offset against any collateral pledged or received. Pursuant to the International Swaps and Derivatives Association (“ISDA”) master agreements, securities lending agreements and other derivatives agreements, the Company and its counterparties typically have the ability to net certain payments owed to each other in specified circumstances. In addition, in the event a party to one of the ISDA master agreements, securities lending agreements or other derivatives agreements defaults, or a transaction is otherwise subject to termination, the non-defaulting party generally has the right to set off against payments owed to the defaulting party or collateral held by the non-defaulting party. The Company entered into derivative contracts to manage credit risk, interest rate risk, currency exchange risk and other exposure risks. The Company used derivatives in connection with its risk-management activities to economically hedge certain risks and to gain exposure to certain investments. The utilization of derivative contracts also allowed for an efficient means by which to trade certain asset classes. Fair values of derivatives were determined by using quoted market prices, industry recognized pricing vendors and counterparty quotes when available; otherwise fair values were based on pricing models that consider the time value of money, volatility and the current market and contractual prices of underlying financial instruments. Embedded derivatives Certain of the Company’s reinsurance contracts contain interest crediting features that vary based on the net investment return on investments managed by Third Point LLC. These contractual features are considered embedded derivatives in accordance with U.S. GAAP. We include the estimated fair value of these embedded derivatives in the consolidated balance sheets with the host contract in order to reflect the expected settlement of these features with the host contract. The change in estimated fair value of these embedded derivatives are recorded in other expenses in the consolidated statements of income (loss). Share-based compensation The Company accounts for its share-based compensation transactions using the fair value of the award at the grant date and accounts for forfeitures when they occur. Determining the fair value of share purchase options at the grant date requires estimation and judgment. The Company uses an option-pricing model (Black-Scholes) to calculate the fair value of share purchase options. For share purchase options or restricted share awards granted that contain both a service and performance condition, the Company recognizes share compensation expense only for the portion of the options or restricted share awards that are considered probable of vesting. Share compensation for share purchase options or restricted share awards considered probable of vesting are expensed over the service (vesting) period on a graded vesting basis. The probability of share purchase options or restricted share awards vesting is evaluated at each reporting period. When the share purchase options or restricted share awards are considered probable of vesting, the Company records a true up of share compensation expense from the grant date (service inception date) to the current reporting period end based on the fair value of the options or restricted share awards at the grant date. The Company measures grant date fair value for restricted share awards, with a service condition only, based on the price of its common shares at the grant date and the expense is recognized on a straight-line basis over the vesting period. Warrants The Company accounts for warrant contracts issued to certain of its founding investors (“Founders”) in conjunction with the initial capitalization of the Company by using either the physical settlement or net-share settlement methods. The fair value of these warrants was recorded in equity as additional paid-in capital. The fair value of warrants issued are estimated on the grant date using the Black-Scholes option-pricing model. The Company accounts for certain warrant contracts issued to an advisor, where services have been received by the Company, in part, in exchange for equity instruments, based on the fair value of such services. The associated cost of these warrants has been recorded as capital raise costs and is included in additional paid in capital in the consolidated statements of shareholders’ equity. Debt offering costs Costs incurred in issuing debt, which includes underwriters’ fees, legal and accounting fees, printing and other fees are capitalized and presented as a direct deduction from the principal amount of senior notes payable in the consolidated balance sheets. These costs are amortized over the term of the debt and are included in interest expense in the consolidated statements of income (loss) . Other expenses Other expenses are comprised of expenses relating to interest crediting features in certain reinsurance and deposit contracts as well as changes in value of embedded derivatives in reinsurance contracts and deposit liability contracts that have variable interest crediting features. Variable and fixed interest crediting features are calculated on funds transferred to the Company where interest is credited based on actual cash received into a notional experience account. The ceding company can typically elect to commute at specific points in time in exchange for the amounts held in the notional experience account. For those contracts that contain variable interest crediting features, actual investment returns realized by the Company are included in the calculation, which can increase the overall effective interest crediting rate on those contracts. Variable interest credit features are accounted for as embedded derivatives. Fixed interest credits on reinsurance contracts and deposit liability contracts and changes in value of embedded derivative are included in other expenses in the consolidated statements of income (loss) . Foreign currency transactions The Company’s functional currency is the U.S. dollar. Transactions involving monetary assets and liabilities denominated in foreign currencies have been converted into U.S. dollars at the exchange rate in effect on the balance sheet date, and the related revenues and expenses are converted using specific rates for the period, as appropriate. Net foreign currency transaction gains and losses arising from these activities are reported in the consolidated statements of income (loss) in the period in which they arise. Prior to the change in the investment account structure, certain of the Company's investments were denominated in foreign currencies and thus, were subject to the risk associated with foreign currency fluctuations. These investments were translated into U.S. dollar amounts at the date of valuation. Purchases and sales of investments and income and expenses denominated in foreign currencies were translated into U.S. dollar amounts on the respective dates of such transactions. The Company did not isolate the portion of the net investment income (loss) resulting from changes in foreign exchange rates on investments, dividends and interest from the fluctuations arising from changes in fair values of securities and derivatives held within the total net investments managed by Third Point LLC. Periodic payments received or paid on swap agreements were recorded as realized gain or loss on investment transactions. Such fluctuations were included within net investment income (loss) in the consolidated statements of income (loss) . Income taxes, withholding taxes and uncertain tax positions The Company provides for income taxes for its operations in income tax paying jurisdictions. The Company’s provision relies on estimates and interpretations of currently enacted tax laws. The Company recognizes deferred tax assets and liabilities based on the temporary differences between the financial statement carrying amounts and the tax bases of assets and liabilities. Such temporary differences are primarily due to tax basis discounts on loss and loss adjustment expense reserves and unearned premiums, deferred acquisition costs and unrealized gains (losses) on investments. A valuation allowance against deferred tax assets is recorded if it is more likely than not that all, or some portion, of the benefits related to deferred tax assets will not be realized. Any adjustments to deferred income taxes are accounted for as changes in estimates and are reflected in the consolidated statements of income (loss) in the year in which they are made. Adjustments could be material and could significantly impact earnings in the year they are recorded. Prior to the change in the investment account structure, certain of the Company's investments were subject to withholding tax obligations related to dividends, capital gains and interest on certain investments. These withholding taxes were recorded when they became payable and were included in income tax expense (benefit) in the Company’s consolidated statements of income (loss) . The Company recognized uncertain tax positions related to certain investment transactions in foreign jurisdictions. The Company records its uncertain tax positions based on an estimate of the potential liability, including potential interests and penalties, arising from its investment transactions conducted in foreign countries. The changes in the Company’s uncertain tax position is included in income tax expense (benefit) in the Company’s consolidated statements of income (loss) . Variable interest entities The Company accounts for variable interest entities (“VIEs”) in accordance with FASB ASC Topic 810 Consolidation, which requires the consolidation of all VIEs by the primary beneficiary, that being the investor that has the power to direct the activities of the VIE and that will absorb a portion of the VIE’s expected losses or residual returns that could potentially be significant to the VIE. For VIEs the Company determines it has a variable interest in, it determines whether it is the primary beneficiary of a VIE by performing an analysis that principally considers: (i) the VIE’s purpose and design, including the risks the VIE was designed to create and pass through to its variable interest holders; (ii) the VIE’s capital structure; (iii) the terms between the VIE and its variable interest holders and other parties involved with the VIE; (iv) which variable interest holders have the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance; (v) which variable interest holders have the obligation to absorb losses or the right to receive benefits from the VIE that could potentially be significant to the VIE; and (vi) related party relationships. The Company reassesses its initial determination of whether the Company is the primary beneficiary of a VIE upon changes in facts and circumstances that could potentially alter the Company’s assessment. Noncontrolling interests in related party The Company consolidates the results of entities in which it has a controlling financial interest. Redeemable noncontrolling interests with redemption features that are not solely within the Company’s control are presented as a mezzanine item, between liabilities and shareholders’ equity, in the Company’s consolidated balance sheets and non-redeemable noncontrolling interests are presented as a separate line within shareholders’ equity in the consolidated balance sheets. The Company records the portion of net (income) loss attributable to noncontrolling interests in related party as a separate line within the consolidated statements of income (loss) . Earnings (loss) per share Basic earnings (loss) per share is based on the weighted average number of common shares and participating securities outstanding during the period. The weighted average number of common shares excludes any dilutive effect of outstanding warrants, options and unvested restricted shares. Diluted earnings (loss) per share is based on the weighted average number of common shares and participating securities outstanding and includes any dilutive effects of warrants, options and unvested restricted shares under share plans and are determined using the treasury stock method. U.S. GAAP requires that unvested share awards that contain non-forfeitable rights to dividends or dividend equivalents, whether paid or unpaid (referred to as “participating securities”), be treated in the same manner as outstanding shares for earnings per share calculations. The Company treats certain of its unvested restricted shares as participating securities. In the event of a net loss, all participating securities, outstanding warrants, options and restricted shares are excluded from both basic and diluted loss per share since their inclusion would be anti-dilutive. Leases Leases in which substantially all of the risks and rewards of ownership are retained by the lessor are classified as operating leases. Payments made under operating leases (net of any incentives received from the lessor) are recognized in the consolidated statements of income (loss) on a straight-line basis over the term of the lease. Comprehensive income The Company has no comprehensive income other than net income disclosed in the consolidated statements of income (loss) . Segment information Under U.S. GAAP, operating segments are based on the internal information that management uses for allocating resources and assessing performance of the Company. The Company manages its business on the basis of one operating segment: Property and Casualty Reinsurance. Non-underwriting income and expenses, presented as a reconciliation to our consolidated results, include: net investment income, certain general and administrative expenses related to corporate activities, interest expense, foreign exchange (gains) losses and income tax (expense) benefit . Treasury shares Common shares repurchased by the Company and not canceled are classified as treasury shares. Treasury shares are recorded at cost, which results in a reduction of shareholders’ equity in the consolidated balance sheets. When shares are reissued from treasury, the Company uses the average cost method to determine the cost of the reissued shares. Gains on sales of treasury shares are credited to additional paid-in capital, while losses are charged to additional paid-in capital to the extent that previous net gains from sales of treasury shares are included therein; otherwise, losses are charged to retained earnings. Transfer of Financial Assets The Company accounts for transfers of financial assets as sales when it has surrendered control over the related assets. Whether control has been relinquished requires, among other things, an evaluation of relevant legal considerations and an assessment of the nature and extent of the Company’s continuing involvement with the assets transferred. Gains and losses stemming from transfers reported as sales, if any, would be included as realized gains (losses) within net investment income in the accompanying consolidated statements of income. In instances where a transfer of financial assets does not qualify for sale accounting, the accounting guidance requires that the transaction be accounted for as a collateralized borrowing. Accordingly, the related assets remain on the Company’s consolidated balance sheets and continue to be reported and accounted for as if the transfer had not occurred. Cash proceeds from these transfers are reported as liabilities, with attributable interest expense recognized over the life of the related transactions. Recent accounting pronouncements Adoption of New Accounting Standards In February 2016, the FASB issued Accounting Standards Update 2016-02, Leases (Topic 842): Section A - Leases, Section B - Conforming Amendments Related to Leases and Section C - Background Information and Basis for Conclusions (“ASU 2016-02”). ASU 2016-02 intends to improve financial reporting related to leasing transactions. The new standard affects all entities that lease assets such as real estate, airplanes and manufacturing equipment. ASU 2016-02 requires entities that lease assets, referred to as “lessees”, to recognize on the balance sheet the assets and liabilities for the rights and obligations created by those leases. ASU 2016-02 is effective for public business entities for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. ASU 2016-02 did not have a material effect on the Company’s consolidated financial statements as a result of the limited number of leases the Company currently has in place. In July 2018, the FASB issued Accounting Standards Update 2018-10, Codification Improvements to Topic 842, Leases (“ASU 2018-10”) and Accounting Standards Update 2018-11, Leases (Topic 842): Targeted improvements (ASU 2018-11). These updates make improvements to clarify or to correct unintended application of guidance in ASC 842 and did not have a significant effect on the Company. Recently Issued Accounting Standards Not Yet Adopted In June 2016, the FASB issued Accounting Standards Update 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”). ASU 2016-13 amends the guidance on the impairment of financial instruments. Under the new guidance, an entity recognizes as an allowance its estimate of expected credit losses, which the FASB believes will result in more timely recognition of such losses. ASU 2016-13 is effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. The Company has evaluated the impact of this guidance; it is not expected to have a material impact on the Company’s consolidated financial statements. In November 2019, the FASB issued Accounting Standards Update 2019-11, Codification Improvements to Topic 326, Financial Instruments - Credit Losses (“ASU 2019-11”). This update make improvements to clarify or to correct unintended application of guidance in ASC 326. Those changes did not impact the Company. ASU 2019-11 will be effective when the Company adopts ASU 2016-13 in 2020. In August 2018, the FASB issued Accounting Standards Update 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement (“ASU 2018-13”). ASU 2018-13 is intended to improve the effectiveness of fair value measurement disclosure requirements. The amendments are effective for interim and annual periods beginning af

Restricted cash and cash equiva

Restricted cash and cash equivalents and investments	12 Months Ended
	Dec. 31, 2019
Cash and Cash Equivalents [Abstract]
Restricted cash and cash equivalents	The following table provides a summary of cash and cash equivalents, restricted cash and restricted investments as of December 31, 2019 and 2018 : 2019 2018 Cash and cash equivalents $ 639,415 $ 104,183 Restricted cash securing letter of credit facilities (1) 254,176 203,953 Restricted cash securing reinsurance contracts (2) 760,367 405,201 Total cash, cash equivalents and restricted cash (3) 1,653,958 713,337 Restricted investments securing reinsurance contracts (2) 142,617 239,640 Total cash, cash equivalents, restricted cash and restricted investments $ 1,796,575 $ 952,977 (1) Restricted cash securing letter of credit facilities primarily pertains to letters of credit that have been issued to the Company’s clients in support of our obligations under reinsurance contracts. The Company will not be released from the obligation to provide these letters of credit until the reserves underlying the reinsurance contracts have been settled. The time period for which the Company expects each letter of credit to be in place varies from contract to contract but can last several years. (2) Restricted cash and restricted investments securing reinsurance contracts pertain to trust accounts securing the Company’s contractual obligations under certain reinsurance contracts that the Company will not be released from until the underlying risks have expired or have been settled. Restricted investments include certain investments in debt securities including U.S. Treasury securities, sovereign debt, and limited partnership interests in TP Fund. The time period for which the Company expects these trust accounts to be in place varies from contract to contract, but can last several years. (3) Cash, cash equivalents and restricted cash as reported in the Company’s consolidated statements of cash flows.

Investments

Investments	12 Months Ended
	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block]	The following is a summary of the net investments managed by Third Point LLC as of December 31, 2019 and 2018 : 2019 2018 Assets TP Fund $ 860,630 $ 1,284,004 Debt securities 125,071 239,640 Total investments 985,701 1,523,644 Cash and cash equivalents 588,196 1,017 Restricted cash and cash equivalents 1,014,543 609,154 Due from brokers — 1,411 Interest and dividends receivable 2,178 1,316 Other assets 18 — Total assets 2,590,636 2,136,542 Liabilities Accounts payable and accrued expenses 509 114 Participation agreement with related party investment fund — 2,297 Total liabilities 509 2,411 Total net investments managed by Third Point LLC $ 2,590,127 $ 2,134,131 The TP Fund investment strategy, as implemented by Third Point LLC, is intended to achieve superior risk-adjusted returns by deploying capital in both long and short investments with favorable risk/reward characteristics across select asset classes, sectors and geographies. Third Point LLC identifies investment opportunities via a bottom-up, value-oriented approach to single security analysis supplemented by a top-down view of portfolio and risk management. Third Point LLC seeks dislocations in certain areas of the capital markets or in the pricing of particular securities and supplements single security analysis with an approach to portfolio construction that includes sizing each investment based on upside/ downside calculations, all with a view towards appropriately positioning and managing overall exposures. On July 31, 2018, Third Point Re, Third Point Re BDA and Third Point Re USA entered into the Amended and Restated Exempted Limited Partnership Agreement (the “2018 LPA”) of TP Fund with Third Point Advisors LLC (“TP GP”) and others, effective August 31, 2018. In accordance with the 2018 LPA, TP GP serves as the general partner of TP Fund. TP GP is beneficially owned by Daniel S. Loeb, a founder of the Company, and certain members of his family. Pursuant to the investment management agreement between Third Point LLC and TP Fund, dated July 31, 2018 as amended and restated on February 28, 2019 (the “TP Fund IMA”), Third Point LLC is the investment manager for TP Fund (the “Investment Manager”). In addition, on July 31, 2018, the TPRE Limited Partners, and TP Fund executed a Subscription Agreement pursuant to which the TPRE Limited Partners transferred certain net investment assets and related liabilities from their separate accounts to TP Fund, and TP Fund issued limited partner interests to the TPRE Limited Partners proportionate to and based on the net asset value transferred by each such entity on the applicable transfer date. Certain collateral assets consisting of debt securities and restricted cash were not transferred to TP Fund but are also managed by Third Point LLC under the Collateral Assets IMA, as defined below. On February 28, 2019, Third Point Re, Third Point Re BDA and Third Point Re USA entered into the Second Amended and Restated Exempted Limited Partnership Agreement of TP Fund (the “Amended LPA”), which amended and restated the 2018 LPA (as amended and restated by the Amended LPA, the “LPA”), with effect from January 1, 2019. The Amended LPA preserves the loss carryforward attributable to the Company’s investment in TP Fund when contributions to TP Fund are made within nine months of certain types of withdrawals from TP Fund. In addition, the Amended LPA revised the management fee from 1.5% per annum to 1.25% per annum effective from January 1, 2019. See Note 9 for additional information. On July 31, 2018, Third Point Re BDA and Third Point Re USA entered into the Collateral Assets Investment Management Agreement (the “2018 Collateral Assets IMA”) with Third Point LLC effective August 31, 2018, pursuant to which Third Point LLC serves as investment manager of certain collateral assets not transferred to TP Fund (the “Collateral Assets”). The 2018 Collateral Assets IMA will continue in effect for so long as either Third Point Re BDA or Third Point Re USA remains a limited partner of TP Fund. The collateral assets are presented in the consolidated balance sheets within debt securities and restricted cash and are considered as part of total net investments managed by Third Point LLC. On May 24, 2019, Third Point Re BDA and Third Point Re USA entered into the Amended and Restated Collateral Assets Investment Management Agreement (the “Amended Collateral Assets IMA” and together with the 2018 Collateral Assets IMA, the “Collateral Assets IMA”) with Third Point LLC, effective May 24, 2019, pursuant to which, in addition to serving as the investment manager for the Company’s collateral assets, Third Point LLC will serve as investment manager of certain investment assets withdrawn from TP Fund. The Amended Collateral Assets IMA will continue in effect thereafter so long as either Third Point Re BDA or Third Point Re USA remains a limited partner of TP Fund. The Company entered into the Amended Collateral Assets IMA to provide for Third Point LLC's management of a substantial portion of the Company’s assets that were reallocated from TP Fund into cash, U.S. Treasuries and other fixed income investments. There are no management or performance fees under the Collateral Assets IMA.
Investments	The following tables present the Company’s investments, categorized by the level of the fair value hierarchy as of December 31, 2019 and 2018 : December 31, 2019 Quoted prices in active markets Significant other observable inputs Significant unobservable inputs Total (Level 1) (Level 2) (Level 3) Assets Private common equity securities $ — $ — $ 1,000 $ 1,000 Private preferred equity securities — — 3,000 3,000 Total equities — — 4,000 4,000 U.S. Treasury securities — 101,186 — 101,186 Sovereign debt — 23,885 — 23,885 Total debt securities — 125,071 — 125,071 $ — $ 125,071 $ 4,000 129,071 Investments in funds valued at NAV 860,630 Total assets $ 989,701 Liabilities Derivative liabilities (embedded) $ — $ — $ 31 $ 31 Total liabilities $ — $ — $ 31 $ 31 December 31, 2018 Quoted prices in active markets Significant other observable inputs Significant unobservable inputs Total (Level 1) (Level 2) (Level 3) Assets U.S. Treasury securities $ — $ 197,312 $ — $ 197,312 Sovereign debt — 42,328 — 42,328 Total debt securities $ — $ 239,640 $ — 239,640 Investments in funds valued at NAV 1,284,088 Total assets $ 1,523,728 Liabilities Derivative liabilities (embedded) $ — $ — $ 22 $ 22 Total liabilities $ — $ — $ 22 $ 22 The total change in unrealized gains (losses) on equity and debt securities held at the year ended December 31, 2019 were $nil and $10.0 million , respectively ( 2018 - $nil and $(6.7) million , and 2017 - $330.4 million and $(12.4) million , respectively). Private common and preferred equity securities Private common and preferred equity securities are those not registered for public sale and are carried at an estimated fair value at the end of the period. Valuation techniques used may include market approach, last transaction analysis, liquidation analysis and/or using discounted cash flow models where the significant inputs could include but are not limited to additional rounds of equity financing, financial metrics such as revenue multiples or price-earnings ratio, discount rates and other factors. In addition, third party valuation firms may be employed to conduct investment valuations of such private securities. As the significant inputs used to price these securities are unobservable, these are classified as Level 3. Debt securities U.S. Treasury securities and sovereign debt securities are primarily priced by obtaining broker dealer quotes and other market information including actual market prices, when available. When evaluating these securities, the pricing services gather information from market sources and integrate other observations from markets and sector news. The fair value of each security is individually computed using analytical models which incorporate option adjusted spreads and other daily interest rate data. As the significant inputs used to price these securities are observable, the fair values of these investments are classified as Level 2. Investments in funds valued at NAV The Company values its investments in limited partnerships, including its investment in related party investment fund, at fair value. The Company has elected the practical expedient for fair value for these investments which is estimated based on the Company’s share of the NAV of the limited partnerships, as provided by the independent fund administrator, as the Company believes it represents the most meaningful measurement basis for the investment assets and liabilities. The NAV represents the Company’s proportionate interest in the members’ equity of the limited partnerships. The resulting net gains or net losses are reflected in the consolidated statements of income (loss) . These investments are included in investment in funds valued at NAV and excluded from the presentation of investments categorized by the level of the fair value hierarchy. In order to assess the reasonableness of the NAVs, the Company performs a number of monitoring procedures on a monthly, quarterly and annual basis, to assess the quality of the information provided by the investment manager and fund administrator underlying the preparation of the NAV. These procedures include, but are not limited to, regular review and discussion of the fund’s performance with the investment manager. However, the Company often does not have access to financial information relating to the underlying securities held within the TP Fund. Therefore, management is often unable to corroborate the fair values placed on the securities underlying the asset valuations provided by the investment manager or fund administrator. Embedded derivatives The Company has derivatives embedded in non-derivative host contracts that are required to be separated from the host contracts and accounted for at fair value with changes in fair value of the embedded derivative reported in other expenses. The Company’s embedded derivatives relate to interest crediting features in certain reinsurance and deposit contracts that vary based on the returns on the Company’s investments managed by Third Point LLC. The Company determines the fair value of the embedded derivatives using models developed by the Company. As the significant inputs used to price embedded derivatives are unobservable, these are classified as level 3. The following table presents the reconciliation of all investments measured at fair value using Level 3 inputs for the years ended December 31, 2019 and 2018 : January 1, Transfers in to (out of) Level 3 Purchases Sales Realized and Unrealized Gains(Losses) (2) December 31, Assets Private common equity securities $ — $ — $ 1,000 $ — $ — $ 1,000 Private preferred equity securities — — 3,000 — — 3,000 Total assets $ — $ — $ 4,000 $ — $ — $ 4,000 Liabilities Derivative liabilities (embedded) $ (22 ) $ — $ — $ — $ (9 ) $ (31 ) Total liabilities $ (22 ) $ — $ — $ — $ (9 ) $ (31 ) January 1, Transfers in to (out of) Level 3 Purchases Sales (1) Realized and Unrealized Gains(Losses) (2) December 31, Assets Private common equity securities $ 4,794 $ — $ 567 $ (4,726 ) $ (635 ) $ — Private preferred equity securities 57,126 — 38,376 (91,065 ) (4,437 ) — Asset-backed securities 27,308 — 35,905 (60,906 ) (2,307 ) — Corporate bonds 9,868 — 1,372 (11,763 ) 523 — Other debt securities 713 — — (913 ) 200 — Rights and warrants 435 — 753 (1,380 ) 192 — Real estate 6,831 — — (6,817 ) (14 ) — Total assets $ 107,075 $ — $ 76,973 $ (177,570 ) $ (6,478 ) $ — Liabilities Derivative liabilities (free standing) $ (2,085 ) $ — $ — $ 1,797 $ 288 $ — Derivative liabilities (embedded) (171 ) — — — 149 (22 ) Total liabilities $ (2,256 ) $ — $ — $ 1,797 $ 437 $ (22 ) (1) Sales of investments measured at fair value using Level 3 inputs in the year ended December 31, 2018 include the impact of the change in investment account structure as described in Note 4 . (2) Total change in realized and unrealized gains (losses) recorded on Level 3 financial instruments is included in net investment income (loss) in the consolidated statements of income (loss) . Realized and unrealized gains (losses) related to embedded derivatives are included in other expenses in the consolidated statements of income (loss) . Total change in unrealized gains (losses) on fair value of assets using significant unobservable inputs (Level 3) held at the year ended December 31, 2019 was $nil ( 2018 - $nil and 2017 - $(9.5) million ). For the years ended December 31, 2019 and 2018 , there were no changes in the valuation techniques as they relate to the above.

Fair Value Measurements Fair Va

Fair Value Measurements Fair Value Measurements (Notes)	12 Months Ended
	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Fair Value Disclosures	The following tables present the Company’s investments, categorized by the level of the fair value hierarchy as of December 31, 2019 and 2018 : December 31, 2019 Quoted prices in active markets Significant other observable inputs Significant unobservable inputs Total (Level 1) (Level 2) (Level 3) Assets Private common equity securities $ — $ — $ 1,000 $ 1,000 Private preferred equity securities — — 3,000 3,000 Total equities — — 4,000 4,000 U.S. Treasury securities — 101,186 — 101,186 Sovereign debt — 23,885 — 23,885 Total debt securities — 125,071 — 125,071 $ — $ 125,071 $ 4,000 129,071 Investments in funds valued at NAV 860,630 Total assets $ 989,701 Liabilities Derivative liabilities (embedded) $ — $ — $ 31 $ 31 Total liabilities $ — $ — $ 31 $ 31 December 31, 2018 Quoted prices in active markets Significant other observable inputs Significant unobservable inputs Total (Level 1) (Level 2) (Level 3) Assets U.S. Treasury securities $ — $ 197,312 $ — $ 197,312 Sovereign debt — 42,328 — 42,328 Total debt securities $ — $ 239,640 $ — 239,640 Investments in funds valued at NAV 1,284,088 Total assets $ 1,523,728 Liabilities Derivative liabilities (embedded) $ — $ — $ 22 $ 22 Total liabilities $ — $ — $ 22 $ 22 The total change in unrealized gains (losses) on equity and debt securities held at the year ended December 31, 2019 were $nil and $10.0 million , respectively ( 2018 - $nil and $(6.7) million , and 2017 - $330.4 million and $(12.4) million , respectively). Private common and preferred equity securities Private common and preferred equity securities are those not registered for public sale and are carried at an estimated fair value at the end of the period. Valuation techniques used may include market approach, last transaction analysis, liquidation analysis and/or using discounted cash flow models where the significant inputs could include but are not limited to additional rounds of equity financing, financial metrics such as revenue multiples or price-earnings ratio, discount rates and other factors. In addition, third party valuation firms may be employed to conduct investment valuations of such private securities. As the significant inputs used to price these securities are unobservable, these are classified as Level 3. Debt securities U.S. Treasury securities and sovereign debt securities are primarily priced by obtaining broker dealer quotes and other market information including actual market prices, when available. When evaluating these securities, the pricing services gather information from market sources and integrate other observations from markets and sector news. The fair value of each security is individually computed using analytical models which incorporate option adjusted spreads and other daily interest rate data. As the significant inputs used to price these securities are observable, the fair values of these investments are classified as Level 2. Investments in funds valued at NAV The Company values its investments in limited partnerships, including its investment in related party investment fund, at fair value. The Company has elected the practical expedient for fair value for these investments which is estimated based on the Company’s share of the NAV of the limited partnerships, as provided by the independent fund administrator, as the Company believes it represents the most meaningful measurement basis for the investment assets and liabilities. The NAV represents the Company’s proportionate interest in the members’ equity of the limited partnerships. The resulting net gains or net losses are reflected in the consolidated statements of income (loss) . These investments are included in investment in funds valued at NAV and excluded from the presentation of investments categorized by the level of the fair value hierarchy. In order to assess the reasonableness of the NAVs, the Company performs a number of monitoring procedures on a monthly, quarterly and annual basis, to assess the quality of the information provided by the investment manager and fund administrator underlying the preparation of the NAV. These procedures include, but are not limited to, regular review and discussion of the fund’s performance with the investment manager. However, the Company often does not have access to financial information relating to the underlying securities held within the TP Fund. Therefore, management is often unable to corroborate the fair values placed on the securities underlying the asset valuations provided by the investment manager or fund administrator. Embedded derivatives The Company has derivatives embedded in non-derivative host contracts that are required to be separated from the host contracts and accounted for at fair value with changes in fair value of the embedded derivative reported in other expenses. The Company’s embedded derivatives relate to interest crediting features in certain reinsurance and deposit contracts that vary based on the returns on the Company’s investments managed by Third Point LLC. The Company determines the fair value of the embedded derivatives using models developed by the Company. As the significant inputs used to price embedded derivatives are unobservable, these are classified as level 3. The following table presents the reconciliation of all investments measured at fair value using Level 3 inputs for the years ended December 31, 2019 and 2018 : January 1, Transfers in to (out of) Level 3 Purchases Sales Realized and Unrealized Gains(Losses) (2) December 31, Assets Private common equity securities $ — $ — $ 1,000 $ — $ — $ 1,000 Private preferred equity securities — — 3,000 — — 3,000 Total assets $ — $ — $ 4,000 $ — $ — $ 4,000 Liabilities Derivative liabilities (embedded) $ (22 ) $ — $ — $ — $ (9 ) $ (31 ) Total liabilities $ (22 ) $ — $ — $ — $ (9 ) $ (31 ) January 1, Transfers in to (out of) Level 3 Purchases Sales (1) Realized and Unrealized Gains(Losses) (2) December 31, Assets Private common equity securities $ 4,794 $ — $ 567 $ (4,726 ) $ (635 ) $ — Private preferred equity securities 57,126 — 38,376 (91,065 ) (4,437 ) — Asset-backed securities 27,308 — 35,905 (60,906 ) (2,307 ) — Corporate bonds 9,868 — 1,372 (11,763 ) 523 — Other debt securities 713 — — (913 ) 200 — Rights and warrants 435 — 753 (1,380 ) 192 — Real estate 6,831 — — (6,817 ) (14 ) — Total assets $ 107,075 $ — $ 76,973 $ (177,570 ) $ (6,478 ) $ — Liabilities Derivative liabilities (free standing) $ (2,085 ) $ — $ — $ 1,797 $ 288 $ — Derivative liabilities (embedded) (171 ) — — — 149 (22 ) Total liabilities $ (2,256 ) $ — $ — $ 1,797 $ 437 $ (22 ) (1) Sales of investments measured at fair value using Level 3 inputs in the year ended December 31, 2018 include the impact of the change in investment account structure as described in Note 4 . (2) Total change in realized and unrealized gains (losses) recorded on Level 3 financial instruments is included in net investment income (loss) in the consolidated statements of income (loss) . Realized and unrealized gains (losses) related to embedded derivatives are included in other expenses in the consolidated statements of income (loss) . Total change in unrealized gains (losses) on fair value of assets using significant unobservable inputs (Level 3) held at the year ended December 31, 2019 was $nil ( 2018 - $nil and 2017 - $(9.5) million ). For the years ended December 31, 2019 and 2018 , there were no changes in the valuation techniques as they relate to the above.

Derivatives

Derivatives	12 Months Ended
	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	The following table identifies the fair value and notional amounts of embedded derivative instruments in reinsurance contracts included in the consolidated balance sheets as of December 31, 2019 and 2018 : 2019 2018 Derivative Liabilities by Primary Underlying Risk Fair Value Notional Amounts (1) Fair Value Notional Amounts (1) Embedded derivative liabilities in reinsurance contracts (2) $ 31 $ 20,000 $ 22 $ 20,000 Total Derivative Liabilities (embedded) $ 31 $ 20,000 $ 22 $ 20,000 (1) The absolute notional exposure represents the Company’s derivative activity as of December 31, 2019 and 2018 , which is representative of the volume of derivatives held during the period. (2) The fair value of embedded derivatives in reinsurance contracts is included in reinsurance balances payable in the consolidated balance sheets. The following table sets forth, by major risk type, the Company’s realized and unrealized gains (losses) relating to derivatives for the years ended December 31, 2019 , 2018 and 2017 . Realized and unrealized gains (losses) for the year ended December 31, 2018 includes activity in the separate accounts up to the date of change in the investment account structure. Realized and unrealized gains (losses) related to free standing derivatives were included in net investment income (loss) in the consolidated statements of income (loss) . Realized and unrealized gains (losses) related to embedded derivatives are included in other expenses in the consolidated statements of income (loss) . 2019 2018 2017 Free standing Derivatives - Primary Underlying Risk Realized Gain (Loss) Unrealized Gain (Loss)* Realized Gain (Loss) Unrealized Gain (Loss)* Realized Gain (Loss) Unrealized Gain (Loss)* Credit Credit Default Swaps - Protection Purchased $ — $ — $ (3,557 ) $ 921 $ (3,462 ) $ (978 ) Credit Default Swaps - Protection Sold — — (333 ) 744 605 (720 ) Total Return Swaps - Long Contracts — — 3,486 (2,000 ) 72 2,000 Equity Price Contracts for Differences - Long Contracts — — 32,460 (15,098 ) 58,047 13,334 Contracts for Differences - Short Contracts — — 4,568 (3,608 ) 2,608 4,715 Total Return Swaps - Long Contracts — — 16,792 (15,864 ) 16,863 16,923 Total Return Swaps - Short Contracts — — (17,329 ) 1,883 (15,892 ) (765 ) Interest Rates Interest Rate Swaps — — — — (3,104 ) (1,740 ) Interest Rate Swaptions — — (1,819 ) 1,228 (354 ) (2,056 ) Sovereign Future Options - Long Contracts — — 403 — — — Sovereign Future Options - Short Contracts — — 50 — — — Sovereign Futures - Long Contracts — — 639 — — — Sovereign Futures - Short Contracts — — (1,166 ) — (7,798 ) 647 Total Return Swaps - Long Contracts — — (7,569 ) — — — Foreign Currency Exchange Rates Foreign Currency Forward Contracts — — (2,849 ) 4,403 (10,470 ) (3,048 ) Foreign Currency Future Options - Purchased — — (108 ) — — — Foreign Currency Options - Purchased — — 5,138 — (6,716 ) 1,164 Foreign Currency Options - Sold — — (771 ) — 2,183 (80 ) $ — $ — $ 28,035 $ (27,391 ) $ 32,582 $ 29,396 Embedded Derivatives Embedded derivatives in reinsurance contracts $ — $ (9 ) $ — $ 149 $ — $ (79 ) Total Derivative Liabilities (embedded) $ — $ (9 ) $ — $ 149 $ — $ (79 ) *Unrealized gain (loss) relates to derivatives still held at reporting date.

Loss and loss adjustment expens

Loss and loss adjustment expense reserves	12 Months Ended
	Dec. 31, 2019
Loss and Loss Adjustment Expense Reserves [Abstract]
Loss and loss adjustment expense reserves	As of December 31, 2019 and 2018 , loss and loss adjustment expense reserves in the consolidated balance sheets was comprised of the following: 2019 2018 Case loss and loss adjustment expense reserves $ 148,166 $ 125,456 Incurred but not reported loss and loss adjustment expense reserves 963,359 811,280 Deferred gains on retroactive reinsurance contracts 167 421 $ 1,111,692 $ 937,157 Reserving methodologies The Company’s methodology for reserving for its reinsurance contracts and determining its loss and loss adjustment expense reserves, including incurred but not reported reserves, is as follows: The Company’s actuaries perform an actuarial projection of the Company’s reserves quarterly and have a third-party actuarial review performed periodically. Reserves are estimated on an individual contract basis. The Company typically initially reserves individual contracts to the expected loss and loss expense ratio in its pricing analysis. The Company also considers the level of adequacy of the pricing loss ratio estimates, and may make upward or downward adjustments in the aggregate reserves if there is evidence that the pricing loss ratio estimates are biased in one direction or the other. As loss information is received from cedents, the Company incorporates other actuarial methods into its projection of ultimate losses and, hence, reserves. In the Company’s pricing analyses, there is a significant amount of information unique to the individual client and, when necessary, the analysis is supplemented with industry data. Industry data primarily takes the form of paid and incurred development patterns from statutory financial statements and statistical agencies. For the Company’s actuarial reserve projections, the relevant information received from clients includes premium estimates, paid loss and loss adjustment expenses and case reserves. The Company’s actuaries review the data for reasonableness and research any noted anomalies. On each contract, the Company’s actuaries compare the expected paid and incurred amounts at each quarter-end with actual amounts reported. The Company’s actuaries also compare premiums received with projected premium receipts at each quarter end. There is a time lag between when a covered loss event occurs and when it is reported to the Company’s cedents. There is also a time lag between when clients pay claims, establish case reserves and re-estimate their reserves, and when they notify the Company of the payments and/or new or revised case reserves. This reporting lag is typically 60 to 90 days after the end of a reporting period, but can be longer in some cases. The Company’s actuaries use techniques that adjust for this reporting lag. While it would be unusual to have lags that extend beyond 90 days, the Company’s actuarial techniques are designed to adjust for such a circumstance. The principal actuarial methods (and associated key assumptions) used to perform the Company’s quarterly loss reserve analysis may include one or more of the following methods: A priori loss ratio method To estimate ultimate losses using the a priori loss ratio method, the Company multiplies earned premiums by an expected loss ratio. The expected loss ratio is selected as part of the pricing and utilizes individual client data, supplemented by industry data where necessary. This method is often useful when there is limited historical data due to few losses being incurred. Paid loss development method This method estimates ultimate losses by calculating past paid loss development factors and applying them to exposure periods with further expected paid loss development. The paid loss development method assumes that losses are paid at a rate consistent with the historical rate of payment. It provides an objective test of reported loss projections because paid losses contain no case reserve estimates. For some lines of business, claim payments are made slowly and it may take many years for claims to be fully reported and settled. Incurred loss development method This method estimates ultimate losses by using past incurred loss development factors and applying them to exposure periods with further expected incurred loss development. Since incurred losses include payments and case reserves, changes in both of these amounts are incorporated in this method. This approach provides a larger volume of data to estimate ultimate losses than paid loss methods. Thus, incurred loss patterns may be less varied than paid loss patterns, especially for coverages that have historically been paid out over a long period of time but for which claims are incurred relatively early and case loss reserve estimates are established. Bornhuetter-Ferguson paid and incurred loss methods These methods are a weighted average of the a priori loss ratio method and the relevant development method. The weighting between the two methods depends on the maturity of the business. This means that for the more recent years a greater weight is placed on the a priori loss ratio method, while for the more mature years a greater weight is placed on the development methods. These methods avoid some of the distortions that could result from a large development factor being applied to a small base of paid or incurred losses to calculate ultimate losses. This method will react slowly if actual paid or incurred loss experience develops differently than historical paid or incurred loss experience because of major changes in rate levels, retentions or deductibles, the forms and conditions of coverage, the types of risks covered or a variety of other factors. IBNR to outstanding ratio method This method is used in selected cases typically for very mature years that still have open claims. This method assumes that the estimated future loss development is indicated by the current level of case reserves. Key to the projection of ultimate loss is the amount of credibility or weight assigned to each actuarial method. Each method has advantages and disadvantages, and those can change depending on numerous factors including the reliability of the underlying data. The selection and weighting of the projection methods is a highly subjective process. In order to achieve a desirable amount of consistency from study to study and between contracts, the Company’s actuaries have implemented a weighting scheme that incorporates numerous “rules” for the weighting of actuarial methods. These rules attempt to effectively standardize the process used for selecting weights for the various methods. There are numerous circumstances where the rules would be modified for specific reinsurance contracts; examples would include a large market event or new information on historical years that may cause us to increase our a priori loss ratio. As part of the Company’s quarterly reserving process, loss-sensitive contingent expenses (e.g., profit commissions, sliding-scale ceding commissions, etc.) are calculated on an individual contract basis. These expense calculations are based on the updated ultimate loss estimates derived from the Company's quarterly reserving process. The Company’s reserving methodologies use a loss reserving model that calculates a point estimate for the Company’s ultimate losses. Although the Company believes that its assumptions and methodologies are reasonable, the ultimate payments may vary, potentially materially, from the estimates that the Company has made. Catastrophe event estimates Some of the Company’s contracts are exposed to losses from catastrophes (either natural catastrophes or man-made catastrophes). Given the high-severity, low-frequency nature of these events, the losses typically generated therefrom do not lend themselves to traditional actuarial reserving methods, such as those described above. Therefore, our reserving approach for these types of coverages is to estimate the ultimate cost associated with a single loss event rather than analyzing the historical development patterns of past losses for estimating ultimate losses for an entire contract. We estimate our reserves for these catastrophe events on a contract-by-contract basis by means of a review of policies with known or potential exposure to a particular loss event. We consider the following information when making these contract-by-contract estimates of catastrophe event losses: information provided by cedents and brokers; industry loss estimates; catastrophe model output; and the terms and conditions of the contracts with exposure to those events. Initial estimates are established in the period that a catastrophe event occurs and are then monitored each subsequent quarter, considering the latest information available. There were no significant changes made to the Company’s methodology for calculating loss and loss adjustment reserves for the year ended December 31, 2019 . Roll forward of loss and loss adjustment expense reserves The following table represents the activity in the loss and loss adjustment expense reserves for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Gross reserves for loss and loss adjustment expenses, beginning of year $ 937,157 $ 720,570 $ 605,129 Less: loss and loss adjustment expenses recoverable, beginning of year (2,031 ) (1,113 ) (1 ) Less: deferred charges on retroactive reinsurance contracts (3,847 ) — — Net reserves for loss and loss adjustment expenses, beginning of year 931,279 719,457 605,128 Increase (decrease) in net loss and loss adjustment expenses incurred in respect of losses occurring in: Current year 489,994 434,276 422,801 Prior years (86,495 ) 4,138 (52,743 ) Total incurred loss and loss adjustment expenses 403,499 438,414 370,058 Net loss and loss adjustment expenses paid in respect of losses occurring in: Current year (63,638 ) (85,173 ) (110,799 ) Prior years (188,392 ) (132,336 ) (162,447 ) Total net paid losses (252,030 ) (217,509 ) (273,246 ) Foreign currency translation 16,686 (9,083 ) 17,517 Net reserves for loss and loss adjustment expenses, end of year 1,099,434 931,279 719,457 Plus: loss and loss adjustment expenses recoverable, end of year 5,520 2,031 1,113 Plus: deferred charges on retroactive reinsurance contracts 6,738 3,847 — Gross reserves for loss and loss adjustment expenses, end of year $ 1,111,692 $ 937,157 $ 720,570 Changes in the Company’s loss and loss adjustment expense reserves result from re-estimating loss reserves and from changes in premium earnings estimates. Furthermore, many of the Company’s contracts have sliding scale or profit commissions whereby loss reserve development can be offset by changes in acquisition costs that vary inversely with loss experience. In some instances, the Company can have loss reserve development on contracts where there is no sliding scale or profit commission or where the loss ratio falls outside of the loss ratio range to which the sliding scale or profit commission applies. The $86.5 million net decrease in prior years’ reserves for the year ended December 31, 2019 includes $98.5 million of net favorable reserve development related to decrease s in loss reserve estimates, partially offset by a $12.0 million increase in loss reserves resulting from increase s in premium earnings estimates on certain contracts. The net decrease in loss reserves as well as the impact of any offsetting changes in acquisition costs as a result of sliding scale or profit commissions is explained as follows: • The $98.5 million of net favorable prior years’ reserve development for the year ended December 31, 2019 was accompanied by net increase s of $100.9 million in acquisition costs and net increases of $7.8 million in earned premium, resulting in a $5.4 million improvement in the net underwriting results , primarily due to: • $0.5 million of improvement in net underwriting results due to net favorable loss development on one retroactive reinsurance contract as a result of reported loss experience that was less than expected. This retroactive reinsurance contract had profit commission terms such that the net favorable reserve development associated with this contract of $69.4 million was offset by an increase in acquisition costs of $68.9 million ; • $14.9 million of improvement in net underwriting loss development relating to our workers’ compensation contracts as a result of better than expected loss experience; • $3.5 million of improvement in net underwriting loss development relating to our non-standard auto contracts as a result of better than expected loss experience; partially offset by • $8.8 million of net adverse underwriting loss development relating to our general liability contracts, as a result of worse than expected loss experience; and • $8.1 million of net adverse underwriting loss development relating to our multi-line contracts as a result of worse than expected loss experience. • The $12.0 million net increase in loss and loss adjustment expenses incurred resulting from increase s in premium earnings estimates was accompanied by a $7.2 million decrease in acquisition costs, for a total of $4.8 million increase in loss and loss adjustment expenses incurred and acquisition costs. The increase in loss and loss adjustment expenses incurred and acquisition costs was due to an increase in prior period earned premium of $3.1 million . The increase in prior period earned premium was the result of changes in ultimate premium and earning pattern estimates. The net impact was a $1.7 million increase in net underwriting loss for the year ended December 31, 2019 . • In total, the change in net underwriting loss for prior periods due to loss reserve development and adjustments to premium earnings estimates resulted in a $3.7 million improvement in the net underwriting results for the year ended December 31, 2019 . As of December 31, 2019 , the Company had unamortized deferred charges of $6.7 million ( December 31, 2018 - $3.8 million ) relating to retroactive reinsurance contracts. Deferred charges on retroactive contracts are recorded in other assets on the Company’s consolidated balance sheet. The $4.1 million net increase in prior years’ reserves for the year ended December 31, 2018 includes $12.9 million of net favorable reserve development related to decreases in loss reserve estimates and $17.0 million increase in loss reserves resulting from increases in premium earnings estimates on certain contracts. The net increase in loss reserves as well as the impact of any offsetting changes in acquisition costs as a result of sliding scale or profit commissions is explained as follows: • The $12.9 million of net favorable prior years’ reserve development for the year ended December 31, 2018 was accompanied by net increases of $7.7 million in acquisition costs, resulting in a $5.2 million improvement in the net underwriting results, primarily due to: • $15.8 million of net favorable underwriting loss development relating to workers’ compensation, multi-line and credit and financial lines contracts. The favorable development was the result of better than expected loss experience and was partially offset by; • $10.5 million of net adverse underwriting loss development primarily relating to our general liability and homeowners’ contracts, as a result of worse than expected loss experience. • The $17.0 million net increase in loss and loss adjustment expenses incurred resulting from increases in premium earnings estimates on certain contracts was accompanied by a $5.4 million increase in acquisition costs, for a total of $22.4 million increase in loss and loss adjustment expenses incurred and acquisition costs. The increase in loss and loss adjustment expenses incurred and acquisition costs was due to an increase in prior period earned premium of $23.4 million . The increase in prior period earned premium was the result of changes in ultimate premium and earning pattern estimates. The net impact was a $1.0 million improvement in the net underwriting results for the year ended December 31, 2018 . • In total, the change in net underwriting loss for prior periods due to loss reserve development and adjustments to premium earnings estimates resulted in a $6.2 million improvement in the net underwriting results for the year ended December 31, 2018 . The $52.7 million net decrease in prior years’ reserves for the year ended December 31, 2017 includes $22.3 million of net favorable reserve development related to decreases in loss reserve estimates and $30.4 million decrease in loss reserves resulting from decreases in premium earnings estimates on certain contracts. The net decrease in loss reserves as well as the impact of any offsetting changes in acquisition costs as a result of sliding scale or profit commissions is explained as follows: • The $22.3 million of net favorable prior years’ reserve development for the year ended December 31, 2017 was accompanied by net increases of $19.8 million in acquisition costs, resulting in a $2.5 million improvement in the net underwriting results, primarily due to: • $5.8 million of net favorable underwriting loss development relating to several workers’ compensation contracts written from 2012 to 2014, driven by better than expected loss experience; • $1.3 million of net favorable underwriting loss development from several other contracts as a result of better than expected loss experience; partially offset by • $4.6 million of net adverse underwriting loss development relating to non-standard auto contracts, primarily due to the inability of cedents to promptly react to increasing frequency and severity trends, resulting in underpriced business and adverse selection. • The $30.4 million net decrease in loss and loss adjustment expenses incurred resulting from decreases in premium earnings estimates on certain contracts was accompanied by a $21.7 million decrease in acquisition costs, for a total of $52.1 million decrease in loss and loss adjustment expenses incurred and acquisition costs. The decrease in loss and loss adjustment expenses incurred and acquisition costs was due to a decrease in prior period earned premium of $50.0 million . The decrease in prior period earned premium was the result of changes in ultimate premium and earning pattern estimates. The net impact was a $2.1 million improvement in the net underwriting results for the year ended December 31, 2017 . • In total, the change in net underwriting loss for prior periods due to loss reserve development and adjustments to premium earnings estimates resulted in a $4.6 million improvement in the net underwriting results for the year ended December 31, 2017 . Incurred and paid development tables by accident year The Company manages its business on the basis of one operating segment, property and casualty reinsurance. The Company has disaggregated its loss information presented in the tables below by prospective and retroactive reinsurance. For its prospective reinsurance business, the Company further disaggregated by the different lines of business included in this segment. The Company’s retroactive reinsurance contracts have been presented by year of inception. The Company’s retroactive reinsurance contracts within each inception year share similar characteristics and as a result, have not been disaggregated further. The Company has presented the below development tables for all accident years shown using exchange rates as at December 31, 2019 . All accident years prior to the current year have been restated and presented using the current year exchange rate. The Company’s loss reserve analysis is based primarily on underwriting year data. The preparation of accident year development tables requires an allocation of underwriting year data to the corresponding accident years. For instance, a contract written in one particular underwriting year may have exposure to losses from two or more accident years. These allocations are done using accident year loss payment and reporting patterns, along with premium earnings patterns. These patterns are derived from either company-specific or industry historical loss data, depending on availability and applicability. The Company believes that its allocations are reasonable; however, to the extent that the Company’s allocation procedure for loss and loss adjustment expenses incurred differs from actual historical development, the actual loss development may differ materially from the loss development presented. As described in the roll forward of loss and loss adjustment expense reserves section above, changes in the Company’s loss and loss adjustment expense reserves result from both re-estimating loss reserves as well as changes in premium estimates. In addition, many of the Company’s contracts have sliding scale or profit commissions whereby loss reserve development can be offset by changes in acquisition costs. See additional disclosure above on the net impact on underwriting income after considering the impact of changes in premium estimates and the impact of acquisition costs for the years ended December 31, 2019 , 2018 and 2017 . Property and Casualty Reinsurance - Prospective Reinsurance Contracts The following tables provide a breakdown of the Company’s loss and loss adjustment expenses incurred, net and net loss and loss adjustment expenses paid by accident year by line of business for the Company’s prospective reinsurance contracts for the year ended December 31, 2019 . The information related to loss and loss adjustment expenses incurred, net and net loss and loss adjustment expenses paid for the years ended December 31, 2012 through 2018 is presented as supplementary information and is unaudited: Property Catastrophe Loss and loss adjustment expenses incurred, net Accident year 2012 2013 2014 2015 2016 2017 2018 2019 IBNR loss and LAE reserves, net <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ — $ — $ — $ — $ — $ — $ — $ — $ — 2013 — — — — — — — — — 2014 — — — — — — — — — 2015 — — — — — — — — — 2016 — — — — — — — — — 2017 — — — — — — — — — 2018 — — — — — — — — — 2019 — — — — — — — 39,251 38,529 Total $ 39,251 $ 38,529 Cumulative net losses and loss adjustment expenses paid Accident year 2012 2013 2014 2015 2016 2017 2018 2019 <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ — $ — $ — $ — $ — $ — $ — $ — 2013 — — — — — — — — 2014 — — — — — — — — 2015 — — — — — — — — 2016 — — — — — — — — 2017 — — — — — — — — 2018 — — — — — — — — 2019 — — — — — — — 470 Total $ 470 Property Catastrophe - net reserves for loss and loss adjustment expenses, end of year $ 38,781 Other Property Loss and loss adjustment expenses incurred, net Accident year 2012 2013 2014 2015 2016 2017 2018 2019 IBNR loss and LAE reserves, net <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ 10,917 $ 8,672 $ 9,375 $ 9,353 $ 9,416 $ 9,472 $ 9,501 $ 9,490 $ — 2013 — 27,765 24,980 25,766 25,882 25,785 26,170 26,051 7 2014 — — 40,256 40,920 41,336 44,627 46,500 46,303 725 2015 — — — 50,330 52,533 54,635 56,313 56,201 1,533 2016 — — — — 45,415 43,038 43,799 43,733 2,906 2017 — — — — — 41,237 41,833 41,753 3,120 2018 — — — — — — 54,084 52,343 14,267 2019 — — — — — — — 53,590 26,305 Total $ 329,464 $ 48,863 Cumulative net losses and loss adjustment expenses paid Accident year 2012 2013 2014 2015 2016 2017 2018 2019 <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ 4,656 $ 8,381 $ 9,075 $ 9,186 $ 9,352 $ 9,400 $ 9,482 $ 9,483 2013 — 14,635 22,229 24,023 25,167 25,406 25,815 25,993 2014 — — 19,420 34,381 38,448 42,775 44,533 45,312 2015 — — — 22,706 43,382 48,360 51,783 53,924 2016 — — — — 21,593 31,871 37,044 39,651 2017 — — — — — 24,713 33,436 37,171 2018 — — — — — — 26,458 35,169 2019 — — — — — — — 22,624 Total $ 269,327 Other Property - net reserves for loss and loss adjustment expenses, end of year $ 60,137 Workers’ Compensation Loss and loss adjustment expenses incurred, net Accident year 2012 2013 2014 2015 2016 2017 2018 2019 IBNR loss and LAE reserves, net <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ 4,037 $ 4,534 $ 5,066 $ 5,596 $ 5,715 $ 5,720 $ 5,874 $ 5,938 $ 6 2013 — 27,449 28,616 33,365 33,449 33,252 33,067 32,741 286 2014 — — 40,247 46,568 47,200 43,470 42,037 41,115 1,699 2015 — — — 35,749 37,138 34,800 32,529 31,116 2,723 2016 — — — — 40,433 39,205 36,475 31,047 4,159 2017 — — — — — 41,075 40,459 34,453 9,205 2018 — — — — — — 27,753 25,050 10,630 2019 — — — — — — — 26,889 18,758 Total $ 228,349 $ 47,466 Cumulative net losses and loss adjustment expenses paid Accident year 2012 2013 2014 2015 2016 2017 2018 2019 <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ 93 $ 624 $ 3,017 $ 4,280 $ 4,969 $ 4,796 $ 5,110 $ 5,347 2013 — 2,587 9,142 16,840 22,826 26,956 29,082 30,377 2014 — — 4,073 15,947 24,280 29,573 34,112 36,262 2015 — — — 2,669 10,755 17,001 22,432 24,942 2016 — — — — 3,985 13,236 18,346 21,754 2017 — — — — — 4,586 11,868 16,908 2018 — — — — — — 2,552 7,089 2019 — — — — — — — 2,639 Total $ 145,318 Workers’ Compensation - net reserves for loss and loss adjustment expenses, end of year $ 83,031 Auto Loss and loss adjustment expenses incurred, net Accident year 2012 2013 2014 2015 2016 2017 2018 2019 IBNR loss and LAE reserves, net <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ 13,247 $ 12,264 $ 11,777 $ 11,534 $ 11,433 $ 11,333 $ 11,356 $ 11,349 $ — 2013 — 20,830 19,990 19,472 19,338 19,483 19,534 19,489 7 2014 — — 104,896 103,473 103,568 103,661 103,822 103,623 53 2015 — — — 82,677 88,705 89,550 89,459 89,241 119 2016 — — — — 77,785 85,903 86,434 86,511 343 2017 — — — — — 48,682 50,793 50,698 809 2018 — — — — — — 45,145 43,039 1,602 2019 — — — — — — — 29,051 11,593 Total $ 433,001 $ 14,526 Cumulative net losses and loss adjustment expenses paid Accident year 2012 2013 2014 2015 2016 2017 2018 2019 <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ 5,619 $ 9,989 $ 11,387 $ 11,450 $ 11,382 $ 11,318 $ 11,348 $ 11,349 2013 — 8,673 17,244 18,686 19,066 19,363 19,463 19,479 2014 — — 45,766 97,651 101,626 102,868 103,379 103,515 2015 — — — 42,451 80,765 86,100 88,168 88,630 2016 — — — — 38,059 77,511 82,556 85,027 2017 — — — — — 23,546 45,196 48,665 2018 — — — — — — 21,182 38,918 2019 — — — — — — — 10,951 Total $ 406,534 Auto - net reserves for loss and loss adjustment expenses, end of year $ 26,467 Other Casualty Loss and loss adjustment expenses incurred, net Accident year 2012 2013 2014 2015 2016 2017 2018 2019 IBNR loss and LAE reserves, net <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ — $ — $ — $ — $ — $ — $ — $ — $ — 2013 — — — — — — — — — 2014 — — 5,480 7,519 7,316 4,903 5,584 5,849 1,302 2015 — — — 45,558 48,315 33,396 37,113 38,970 10,435 2016 — — — — 63,082 52,118 54,990 56,774 23,647 2017 — — — — — 70,158 71,091 75,334 48,072 2018 — — — — — — 120,553 124,859 99,737 2019 — — — — — — — 95,975 87,236 Total $ 397,761 $ 270,429 Cumulative net losses and loss adjustment expenses paid Accident year 2012 2013 2014 2015 2016 2017 2018 2019 <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ — $ — $ — $ — $ — $ — $ — $ — 2013 — — — — — — — — 2014 — — 16 340 1,390 2,226 3,104 3,685 2015 — — — 310 3,612 9,053 15,781 20,550 2016 — — — — 621 6,165 13,467 20,783 2017 — — — — — 1,418 6,231 12,798 2018 — — — — — — 1,674 9,968 2019 — — — — — — — 3,626 Total $ 71,410 Other Casualty - net reserves for loss and loss adjustment expenses, end of year $ 326,351 Credit & Financial Lines Loss and loss adjustment expenses incurred, net Accident year 2012 2013 2014 2015 2016 2017 2018 2019 IBNR loss and LAE reserves, net <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ — $ — $ — $ — $ — $ — $ — $ — $ — 2013 — 364 408 113 107 99 77 80 2 2014 — — 5,774 2,643 2,416 2,203 1,384 1,454 95 2015 — — — 5,234 5,032 4,752 4,007 3,127 517 2016 — — — — 10,726 10,721 10,816 6,560 1,751 2017 — — — — — 13,740 13,773 7,313 3,364 2018 — — — — — — 17,715 10,940 6,482 2019 — — — — — — — 17,990 14,341 Total $ 47,464 $ 26,552 Cumulative net losses and loss adjustment expenses paid Accident year 2012 2013 2014 2015 2016 2017 2018 2019 <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ — $ — $ — $ — $ — $ — $ — $ — 2013 — — 11 66 74 78 77 77 2014 — — 42 784 1,038 1,318 1,322 1,344 2015 — — — 402 1,128 2,045 2,328 2,503 2016 — — — — 1,013 2,326 3,419 4,196 2017 — — — — — 1,100 2,332 3,031 2018 — — — — — — 897 2,717 2019 — — — — — — — 1,900 Total $ 15,768 Credit & Financial Lines - net reserves for loss and loss adjustment expenses, end of year $ 31,696 Multi-line Loss and loss adjustment expenses incurred, net Accident year 2012 2013 2014 2015 2016 2017 2018 2019 IBNR loss and LAE reserves, net <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ — $ — $ — $ — $ — $ — $ — $ — $ — 2013 — 9 4,272 4,564 4,564 4,564 4,564 4,564 — 2014 — — 47,493 35,651 40,095 35,747 37,547 37,759 16,870 2015 — — — 86,003 108,581 106,957 107,292 116,499 37,445 2016 — — — — 119,902 120,774 116,702 124,262 35,944 2017 — — — — — 100,304 107,485 110,994 30,137 2018 — — — — — — 90,463 101,510 43,334 2019 — — — — — — — 129,248 105,338 Total $ 624,836 $ 269,068 Cumulative net losses and loss adjustment expenses paid Accident year 2012 2013 2014 2015 2016 2017 2018 2019 <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ — $ — $ — $ — $ — $ — $ — $ — 2013 — — 1,243 4,563 4,563 4,563 4,563 4,563 2014 — — 1,179 14,242 20,782 18,803 20,536 20,822 2015 — — — 30,620 65,309 73,844 76,564 78,443 2016 — — — — 30,640 76,034 84,047 87,192 2017 — — — — — 53,789 74,191 79,660 2018 — — — — — — 30,497 48,060 2019 — — — — — — — 19,328 Total $ 338,068 Multi-line - net reserves for loss and loss adjustment expenses, end of year $ 286,768 Other Specialty Loss and loss adjustment expenses incurred, net Accident year 2012 2013 2014 2015 2016 2017 2018 2019 IBNR loss and LAE reserves, net <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ 52,105 $ 49,942 $ 50,055 $ 50,055 $ 50,065 $ 50,104 $ 50,104 $ 50,104 $ — 2013 — 25,582 24,274 23,450 23,138 23,135 23,138 23,125 — 2014 — — — — — — — — — 2015 — — — — — — — — — 2016 — — — — — — 812 730 691 2017 — — — — — 4,033 3,544 4,025 447 2018 — — — — — — 6,213 6,866 2,573 2019 — — — — — — — 9,048 7,358 Total $ 93,898 $ 11,069 Cumulative net losses and loss adjustment expenses paid Accident year 2012 2013 2014 2015 2016 2017 2018 2019 <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ 2,666 $ 48,455 $ 50,024 $ 50,025 $ 50,067 $ 50,103 $ 50,103 $ 50,103 2013 — — 22,232 23,138 23,134 23,135 23,137 23,127 2014 — — — — — — — — 2015 — — — — — — — — 2016 — — — — — — — — 2017 — — — — — 4 261 575 2018 — — — — — — 957 2,109 2019 — — — — — — — 1,640 Total $ 77,554 Other Specialty - net reserves for loss and loss adjustment expenses, end of year $ 16,344 Property and Casualty Reinsurance - Retroactive Reinsurance Contracts The Company writes reinsurance contracts that provide limited protection against adverse development on loss originating from multiple accident years. The Company has other retroactive exposure within contracts that provide primarily prospective coverage. These contracts are included in the prospective reinsurance tables above. These contracts are typically part of prospective reinsurance contracts with a small portion of retroactive exposure resulting from the delay between the dates when the relevant contract was bound and the dates on which each incepted. The information below includes loss and loss adjustment expenses incurred, net and loss and loss adjustment expenses paid, net, by accident year for the Company's retroactive reinsurance contracts presented by year of inception of the retroactive reinsurance contracts. The Company's estimate for loss and loss adjustment expenses incurred, net, at inception of all retroactive reinsurance contracts entered into to date was the same when the contract i

Reinsurance premiums ceded (Not

Reinsurance premiums ceded (Notes)	12 Months Ended
	Dec. 31, 2019
Reinsurance premiums ceded [Abstract]
Effects of Reinsurance [Table Text Block]	From time to time, the Company purchases retrocessional coverage for one or more of the following reasons: to manage its overall exposure, to reduce its net liability on individual risks, to obtain additional underwriting capacity and to balance its underwriting portfolio. Additionally, retrocession can be used as a mechanism to share the risks and rewards of business written and therefore can be used as a tool to align the Company’s interests with those of its counterparties. Premiums ceded for the years ended December 31, 2019 , 2018 and 2017 were $9.3 million , $19.9 million and $2.5 million , respectively. Loss and loss adjustment expenses recoverable from the retrocessionaire are recorded as assets. Retrocession contracts do not relieve the Company from its obligations to the insureds. Failure of retrocessionaires to honor their obligations could result in losses to the Company. As of December 31, 2019 , the Company had loss and loss adjustment expenses recoverable of $5.5 million (December 31, 2018 - $2.0 million

Management, performance and fou

Management, performance and founders fees	12 Months Ended
	Dec. 31, 2019
Management, Performance and Founders Fees [Abstract]
Management, performance and founders fees	Prior to the change in the Company’s investment account structure described in Note 4 , Third Point Re, Third Point Re BDA, TPRUSA and Third Point Re USA were parties to the Amended and Restated Joint Venture and Investment Management Agreements (the “ JV Agreements ”) with Third Point LLC and Third Point Advisors LLC (“TP GP”) under which Third Point LLC managed certain jointly held assets. Effective August 31, 2018, Third Point Re, Third Point Re BDA and Third Point Re USA entered into the 2018 LPA with TP GP, pursuant to which Third Point Re BDA and Third Point Re USA invested in the TP Fund. Effective January 1, 2019, Third Point Re, Third Point Re BDA and Third Point Re USA entered into the Amended LPA , together with the 2018 LPA the “ LPA ”, which amended and restated the 2018 LPA. Management fees Pursuant to both the JV Agreements and the LPA , Third Point LLC is entitled to receive monthly management fees. Prior to the change in the Company’s investment account structure, management fees were calculated based on 1.5% , of net investments managed by Third Point LLC. As a result of the 2018 LPA effective August 31, 2018, management fees are charged at the TP Fund level and were calculated based on 1.5% of the investment in TP Fund and multiplied by an exposure multiplier computed by dividing the average daily investment exposure leverage of the TP Fund by the average daily investment exposure leverage of the Third Point Offshore Master Fund L.P. (“Offshore Master Fund”). Third Point LLC also serves as the investment manager for the Offshore Master Fund. As a result of the Amended LPA effective January 1, 2019, the management fee was revised from 1.5% to 1.25% per annum, with no change to the calculation as part of the 2018 LPA . Performance fees Pursuant to both the JV Agreements and the LPA, TP GP receives a performance fee allocation. Prior to the change in the Company’s investment account structure, the performance fee allocation was equal to 20% of the net investment income of the applicable company’s share of the net investment assets managed by Third Point LLC. As a result of the 2018 LPA effective August 31, 2018, the performance fee allocation is equal to 20% of the Company’s investment income in the related party investment fund. Prior to the change in the investment account structure described in Note 4 , the performance fee accrued on net investment income was included in liabilities as a performance fee payable to related party during the period, unless funds were redeemed from the TPRE Limited Partners’ accounts, in which case, the proportionate share of performance fee associated with the redemption amount was earned and allocated to TP GP’s capital account and recorded as an increase in noncontrolling interests in related party. At the end of each year, the remaining portion of the performance fee payable that had not been included in noncontrolling interests in related party was earned and then allocated to TP GP’s capital account. As a result of the 2018 LPA effective August 31, 2018, the performance fee is included as part of “Investment in related party investment fund” on the Company’s consolidated balance sheet since the fees are charged at the TP Fund level. The performance fee is subject to a loss carryforward provision pursuant to which TP GP is required to maintain a loss recovery account, which represents the sum of all prior period net loss amounts not subsequently offset by prior year net profit amounts, and that is allocated to future profit amounts until the loss recovery account has returned to a positive balance. Until such time, no performance fees are payable, provided that the loss recovery account balance shall be reduced proportionately to reflect any withdrawals from TP Fund. The Amended LPA preserves the loss carryforward attributable to our investment in TP Fund when contributions to TP Fund are made within nine months of certain types of withdrawals from TP Fund. During the year ended December 31, 2019 , Third Point Re BDA and Third Point Re USA forfeited amounts under the Loss Recovery Account of $1.3 million and $1.3 million , respectively, as a result of net redemptions from TP Fund during the period. As of December 31, 2019 , the Loss Recovery Account for Third Point Re BDA’s investment in TP Fund was $nil (December 31, 2018 - $46.8 million ) and for Third Point Re USA’s investment in TP Fund was $0.5 million (December 31, 2018 - $3.8 million ). These amounts have not been recorded in the Company’s consolidated balance sheets. The total management and performance fees to related parties, including our share of fees paid in connection with our investment in TP Fund, for the years ended December 31, 2019 , 2018 and 2017 were as follows: 2019 2018 2017 Management fees - Third Point LLC $ — $ 25,797 $ 36,733 Performance fees - Third Point Advisors LLC — 4,048 93,978 Management and performance fees to related parties as reported in the Company’s consolidated statements of income (loss) (1) — 29,845 130,711 Management and performance fees included in net investment income (loss) from investment in related party investment fund (before loss carryforward) 67,026 7,376 — Performance fees - loss carryforward utilized (47,470 ) — — Total management and performance fees to related parties $ 19,556 $ 37,221 $ 130,711 (1)

Deposit contracts

Deposit contracts	12 Months Ended
	Dec. 31, 2019
Deposit Contracts, Liabilities [Abstract]
Deposit contracts	The following table represents activity in the deposit contracts for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Balance, beginning of year $ 145,342 $ 129,133 $ 104,905 Consideration received 23,884 17,879 22,658 Consideration receivable 10,164 7,390 2,080 Net investment expense (income) allocation 5,879 (1,273 ) 2,800 Payments (13,052 ) (8,089 ) (3,545 ) Foreign currency translation 42 302 235 Balance, end of year $ 172,259 $ 145,342 $ 129,133

Senior Notes payable and letter

Senior Notes payable and letter of credit facilities (Notes)	12 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Senior Notes payable and letter of credit facilities	Senior Notes payable As of December 31, 2019 , TPRUSA had outstanding debt obligations consisting of an aggregate principal amount of $115.0 million of senior unsecured notes (the “Notes”) due February 13, 2025. The Notes bear interest at 7.0% and interest is payable semi-annually on February 13 and August 13 of each year. The Notes are fully and unconditionally guaranteed by Third Point Re, and, in certain circumstances specified in the indenture governing the Notes, certain existing or future subsidiaries of the Company may be required to guarantee the Notes. As of December 31, 2019 , the Company had capitalized $0.9 million of costs associated with the Notes, which are presented as a direct deduction from the principal amount of the Notes on the consolidated balance sheets. As of December 31, 2019 , the Notes had an estimated fair value of $121.7 million (December 31, 2018 - $114.7 million ). The fair value measurements were based on observable inputs and therefore were considered to be Level 2. The Company was in compliance with all debt covenants as of December 31, 2019 and 2018 . Letters of credit As of December 31, 2019 , the Company had entered into the following letter of credit facilities: Letters of Credit Collateral Committed Capacity Issued Cash and Cash Equivalents Committed - Secured letters of credit facilities $ 225,000 $ 64,702 $ 64,702 Uncommitted - Secured letters of credit facilities n/a 187,135 189,474 $ 251,837 $ 254,176 (1) The $200.0 million syndicated unsecured letter of credit facility expired on July 30, 2019 and was not renewed. The Company’s secured letter of credit facilities are bilateral agreements that generally renew on an annual basis. The letters of credit issued under the secured letter of credit facilities are fully collateralized. See Note 3 for additional information.

Net investment income

Net investment income	12 Months Ended
	Dec. 31, 2019
Net Investment Income [Abstract]
Net investment income	Net investment income (loss) for the years ended December 31, 2019 , 2018 and 2017 consisted of the following: 2019 2018 2017 Net investment income (loss) by type Net realized gains (losses) on investments and investment derivatives $ (5,850 ) $ 446,646 $ 228,628 Net change in unrealized gains (losses) on investments and investment derivatives 8,381 (412,650 ) 251,496 Net gains (losses) on currencies 12,806 (7,305 ) 6,441 Dividend and interest income 18,551 53,523 65,896 Dividends paid on securities sold, not yet purchased — (5,259 ) (5,724 ) Other expenses (954 ) (15,696 ) (24,073 ) Management and performance fees to related parties (1) — (29,845 ) (130,711 ) Net investment income (loss) from investment in related party investment fund (1) 249,626 (280,847 ) — Net investment income (loss) $ 282,560 $ (251,433 ) $ 391,953 (1) Effective August 31, 2018, Third Point Re, Third Point Re BDA and Third Point Re USA entered into the 2018 LPA to invest in TP Fund. As a result, the management and performance fees are presented within net investment income (loss) from investment in related party investment fund from the effective date of the transition. See Note 9 for additional information regarding management and performance fees. The following table provides an additional breakdown of our net investment income (loss) by asset and liability type for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Net investment income (loss) by asset type Equity securities $ — $ 70,646 $ 467,527 Private common equity securities — (401 ) (6 ) Private preferred equity securities — (2,680 ) 5,764 Total equities — 67,565 473,285 Asset-backed securities — 20,714 12,571 Bank debt — 5,326 8,868 Corporate bonds — (2,958 ) 6,462 Municipal bonds — 9,990 — U.S. Treasury securities 8,703 2,787 2,366 Sovereign debt 515 (7,380 ) 21,553 Other debt securities — 406 2,546 Total debt securities 9,218 28,885 54,366 Options — (15,527 ) (33,510 ) Rights and warrants — 238 169 Real estate — (186 ) 502 Trade claims — (580 ) (89 ) Total other investments — (16,055 ) (32,928 ) Net investment income (loss) in funds valued at NAV, excluding TP Fund (6 ) (723 ) 10,309 Total net investment income from invested assets 9,212 79,672 505,032 Net investment income (loss) by liability type Equity securities — (32,407 ) (35,643 ) Corporate bonds — (2,452 ) (1,725 ) Options — 21,697 (2,907 ) Total net investment loss from securities sold, not yet purchased — (13,162 ) (40,275 ) Other investment income (losses) and other expenses not presented above Other investment income (expenses) (954 ) 903 (5,103 ) Net investment income on derivative contracts — 644 61,978 Net investment income (loss) on cash, including foreign exchange gain (loss) 24,676 (14,885 ) (1,454 ) Net investment losses on securities purchased under an agreement to sell and securities sold under an agreement to repurchase — (238 ) (87 ) Withholding taxes reclassified to income tax expense — 6,325 2,573 Total other investment income (losses) and other expenses 23,722 (7,251 ) 57,907 Management and performance fees to related parties (1) — (29,845 ) (130,711 ) Net investment income (loss) from investment in related party investment fund (1) 249,626 (280,847 ) — Net investment income (loss) $ 282,560 $ (251,433 ) $ 391,953 (1) Effective August 31, 2018, Third Point Re, Third Point Re BDA and Third Point Re USA entered into the 2018 LPA to invest in TP Fund. As a result, the management and performance fees are presented within net investment income (loss) from investment in related party investment fund from the effective date of the transition. See Note 9 for additional information regarding management and performance fees.

Other expenses

Other expenses	12 Months Ended
	Dec. 31, 2019
Other Income and Expenses [Abstract]
Other expenses	Other expenses for the years ended December 31, 2019 , 2018 and 2017 consisted of the following: 2019 2018 2017 Investment expense (income) on deposit liabilities $ 5,879 $ (1,273 ) $ 2,800 Investment expense and change in fair value of embedded derivatives in reinsurance contracts 10,740 10,883 9,874 $ 16,619 $ 9,610 $ 12,674

Income taxes (Notes)

Income taxes (Notes)	12 Months Ended
	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Income taxes	The Company provides for income tax expense or benefit based upon pre-tax income or loss reported in the consolidated statements of income (loss) and the provisions of currently enacted tax laws. The Company and its Bermuda subsidiaries are incorporated under the laws of Bermuda and are subject to Bermuda law with respect to taxation. Under current Bermuda law, the Company and its Bermuda subsidiaries are not subject to any income or capital gains taxes in Bermuda. In the event that such taxes are imposed, the Company and its Bermuda subsidiaries would be exempted from any such taxes until March 2035 under the Tax Assurance Certificates issued to such entities pursuant to the Bermuda Exempted Undertakings Tax Protection Act of 1966, as amended. The Company has an operating subsidiary incorporated in Bermuda, Third Point Re USA, which made an election to pay tax in the United States of America under Section 953(d) of the U.S. Internal Revenue Code of 1986, as amended. Our non-U.S. subsidiaries would become subject to U.S. federal income tax only to the extent that they derive income from activity that is deemed to be the conduct of a trade or business within the United States. The Company also has subsidiaries in the United Kingdom, TPRUK and Third Point Re UK, which are subject to applicable taxes in that jurisdiction. Prior to the change in the Company’s investment account structure described in Note 4 , the Company was subject to withholding taxes on income sourced in the United States and in other countries, subject to each countries’ specific tax regulations. Income subject to withholding taxes includes, but is not limited to, dividends, capital gains and interest on certain investments. In addition, the Company had recorded uncertain tax positions related to certain investment transactions in certain foreign jurisdictions. As of December 31, 2019 , the Company had accrued $1.5 million (December 31, 2018 - $1.5 million ). For the years ended December 31, 2019 , 2018 and 2017 , the Company recorded income tax expense (benefit), as follows: 2019 2018 2017 Income tax expense (benefit) related to U.S. and U.K. subsidiaries $ 713 $ (10,035 ) $ 9,248 Change in uncertain tax positions — (300 ) 155 Withholding taxes on certain investment transactions — 6,325 2,573 $ 713 $ (4,010 ) $ 11,976 The following is a summary of the Company’s income (loss) before income tax expense (benefit) by jurisdiction for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Bermuda $ 197,973 $ (273,697 ) $ 266,497 United States 3,245 (47,771 ) 27,172 United Kingdom 114 (11 ) 78 $ 201,332 $ (321,479 ) $ 293,747 The Company’s expected income tax provision computed on pre-tax income at the weighted average tax rate has been calculated as the sum of the pre-tax income in each jurisdiction multiplied by that jurisdiction’s applicable statutory tax rate. Statutory tax rates of 0.0% , 21.0% and 19.0% have been used for Bermuda, the United States and the United Kingdom, respectively. As of December 31, 2019 , the Company has income tax returns open for examination in the United States for the tax years 2016 through 2018. The following table presents a reconciliation of expected income taxes to income tax expense (benefit) for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Bermuda (expected tax expense at 0%) $ — $ — $ — Foreign taxes at local expected rates: United States 681 (10,032 ) 9,510 United Kingdom 22 (2 ) 15 Withholding taxes related to dividend and interest income — 6,325 2,573 Uncertain tax positions — (300 ) 155 Non-deductible expenses and other 10 (1 ) (277 ) $ 713 $ (4,010 ) $ 11,976 The following table presents the Company’s current and deferred incomes taxes for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Current tax expense $ 54 $ 6,025 $ 2,824 Deferred tax expense (benefit) 659 (10,035 ) 9,152 $ 713 $ (4,010 ) $ 11,976 The following table presents the tax effects of temporary differences that give rise to the deferred tax assets and deferred tax liabilities as of December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Deferred tax assets: Discounting of loss and loss adjustment expense reserves $ 786 $ 534 $ 330 Unearned premiums 1,774 1,567 1,634 Temporary differences in recognition of expenses 1,208 1,247 138 Net operating loss carryforward 9,282 6,798 7,048 Total deferred tax assets 13,050 10,146 9,150 Deferred tax liabilities: Deferred acquisition costs 1,379 1,490 7,798 Unrealized gains (losses) on investments 3,366 (405 ) 2,435 Total deferred tax liabilities 4,745 1,085 10,233 Net deferred tax asset (liability) $ 8,305 $ 9,061 $ (1,083 ) The deferred tax assets and liabilities as of December 31, 2019 were primarily related to U.S. income tax. To evaluate the recoverability of the deferred tax assets, the Company considers the timing of the reversal of deferred income and expense items as well as the likelihood that the Company will generate sufficient taxable income to realize future tax benefits. The Company believes that it is more likely than not that it will generate sufficient taxable income and realize the future tax benefits in order to recover the deferred assets and, accordingly, no valuation allowance was recorded as of December 31, 2019 and 2018 . As of December 31, 2019 , deferred tax assets included $45.1 million related to net

Share capital

Share capital	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Share capital	The following table presents a summary of the common shares issued and outstanding as of and for the years ended December 31, 2019 , 2018 and 2017 : Common shares 2019 2018 2017 Common shares issued, beginning of period 93,639,610 107,227,347 106,501,299 Options exercised 187,678 — 150,802 Restricted shares granted, net of forfeitures 366,453 50,644 (35,011 ) Performance restricted shares granted, net of forfeitures and shares withheld 31,757 256,106 610,257 Retirement of treasury shares and shares repurchased (1) — (14,256,043 ) — Warrants exercised, net (2) — 361,556 — Common shares issued, end of period 94,225,498 93,639,610 107,227,347 Treasury shares, end of year — — (3,944,920 ) Common shares outstanding, end of year 94,225,498 93,639,610 103,282,427 (1) Prior to December 31, 2017, common shares repurchased by the Company were not canceled and were classified as treasury shares. Effective January 1, 2018, all treasury shares were retired and subsequent shares repurchased are retired. (2) During the year ended December 31, 2018, 1,156,184 warrants were exercised. As a result of the warrant holder electing net settlement, 794,628 of those common shares were withheld by the Company and were subsequently retired, resulting in a net issuance of 361,556 common shares. Authorized and issued The Company’s authorized share capital of $33.0 million is comprised of 300,000,000 common shares with a par value of $0.10 each and 30,000,000 preference shares with a par value of $0.10 each. No preference shares have been issued to date. Share repurchases On May 4, 2016, the Company’s Board of Directors authorized a common share repurchase program for up to an aggregate of $100.0 million of the Company’s outstanding common shares. On February 28, 2018, the Company’s Board of Directors authorized the repurchase of an additional $148.3 million of common shares, which together with the shares remaining under the previously announced share repurchase program, would allow the Company to repurchase up to $200.0 million more of the Company’s outstanding common shares in the aggregate. Under the common share repurchase program, the Company may repurchase shares from time to time in privately negotiated transactions or in open-market purchases in accordance with all applicable securities laws and regulations, including Rule 10b-18 of the Securities Exchange Act of 1934, as amended. During the year ended December 31, 2019 , the Company did not repurchase any of its common shares. During the year ended December 31, 2018 , the Company repurchased 10,311,123 of its common shares in the open market for an aggregate cost of $138.7 million at a weighted average cost, including commissions, of $13.45 per share. Common shares repurchased by the Company during the year ended December 31, 2018 were retired. In addition, the Company also retired all shares previously held in treasury. As of December 31, 2019 , the Company is authorized to repurchase up to an aggregate of $61.3 million of additional common shares under its share repurchase program. Warrants The Company’s Founders and an advisor provided insurance industry expertise, resources and relationships to ensure that the Company would be fully operational with key management in place in time for the January 2012 underwriting season. In consideration of these commitments, the Company reserved for issuance to the Founders and an advisor warrants to purchase, in the aggregate, up to 4.0% (Founders 3.5% and an advisor 0.5% ) of the diluted shares (up to a maximum of $1 billion of subscribed shares) provided that the Founders and the advisor will not be issued any warrants for common shares issued in consideration for any capital raised by the Company in excess of $1 billion . The following is a summary of warrants as of December 31, 2019 : Exercise price Authorized and issued Aggregated fair value of warrants Founders $ 10.00 2,913,684 $ 10,884 Advisor $ 10.00 581,295 2,171 3,494,979 $ 13,055 The warrants expire 10 years from the date of issuance, December 22, 2011, and will be exercisable at a price per share of $10.00 , which is equal to the price per share paid by investors in the initial private offering.

Share-based compensation

Share-based compensation	12 Months Ended
	Dec. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-based compensation	On July 15, 2013, the Third Point Re 2013 Omnibus Incentive Plan (“Omnibus Plan”) was approved by the Board of Directors and subsequently on August 2, 2013 by the Shareholders of the Company. An aggregate of 21,627,906 common shares were made available under the Omnibus Plan. This number of shares includes the shares available under the Third Point Re Share Incentive Plan (“Share Incentive Plan”). Awards under the Omnibus Plan may be made in the form of performance awards, restricted shares, restricted share units, share options, share appreciation rights and other share-based awards. As of December 31, 2019 , 9,006,995 (December 31, 2018 - 9,017,930 ) of the Company’s common shares were available for future issuance under the equity incentive compensation plans. The following table provides the total share-based compensation expense included in general and administrative expenses during the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Management and director options $ — $ 275 $ 648 Restricted shares with service condition (1) 1,927 611 (331 ) Restricted shares with service and performance condition 5,134 4,070 3,282 $ 7,061 $ 4,956 $ 3,599 (1) Net of forfeitures of $nil in the year ended December 31, 2019 (December 31, 2018 - $nil and December 31, 2017 - $0.9 million ) As of December 31, 2019 , the Company had $7.1 million (December 31, 2018 - $7.4 million ) of unamortized share compensation expense, which is expected to be amortized over a weighted average period of 1.5 years (December 31, 2018 - 1.4 years ). Management and director options The management options issued under the Share Incentive Plan were subject to a service and performance condition. The service condition will be met with respect to 20% of the management options on each of the first five anniversary dates following the grant date of the management options. The performance condition with respect to the management options was met as a result of the Company’s IPO. The management and director options activity for the years ended December 31, 2019 , 2018 and 2017 were as follows: Number of options Weighted average exercise price Balance as of January 1, 2017 9,596,993 $ 13.64 Forfeited (558,138 ) 18.00 Exercised (150,802 ) 10.00 Balance as of January 1, 2018 8,888,053 13.43 Forfeited — — Exercised — — Balance as of January 1, 2019 8,888,053 13.43 Forfeited (393,717 ) 14.73 Exercised (187,678 ) 10.00 Balance as of December 31, 2019 8,306,658 $ 13.45 The fair value of share options issued were estimated on the grant date using the Black-Scholes option-pricing model. There were no share options granted in the years ended December 31, 2019 and 2018 . As of December 31, 2019 , the weighted average remaining contractual term for options outstanding and exercisable was 2.2 years and 2.2 years , respectively ( 2018 - 3.2 years and 3.2 years , respectively). The following table summarizes information about the Company’s management and director share options outstanding as of December 31, 2019 : Options outstanding Options exercisable Range of exercise prices Number of options Weighted average exercise price Remaining contractual life Number of options Weighted average exercise price $10.00 - $10.89 4,774,694 $ 10.04 2.1 years 4,774,694 $ 10.04 $15.05 - $16.89 1,800,866 $ 15.92 2.3 years 1,800,866 $ 15.92 $20.00 - $25.05 1,731,098 $ 20.28 2.2 years 1,731,098 $ 20.28 8,306,658 $ 13.45 2.2 years 8,306,658 $ 13.45 As of December 31, 2019 , the aggregate intrinsic value of options outstanding and options exercisable was $2.4 million and $2.4 million , respectively. As the Company’s closing share price on December 31, 2018 was below $10.00 , there was no aggregate intrinsic value of options outstanding and options exercisable. For the year ended December 31, 2019 , the Company received proceeds of $1.9 million ( 2018 - $nil) from the exercise of options. Restricted shares with service condition Restricted shares vest either ratably or at the end of the required service period and contain certain restrictions during the vesting period, relating to, among other things, forfeiture in the event of termination of employment or service and transferability. Restricted share award activity for the restricted shares with only a service condition for the years ended December 31, 2019 , 2018 and 2017 was as follows: Number of non- vested restricted shares Weighted average grant date fair value Balance as of January 1, 2017 301,043 $ 11.12 Granted 36,418 12.15 Forfeited (71,429 ) 14.00 Vested (247,823 ) 10.36 Balance as of January 1, 2018 18,209 12.15 Granted 50,644 13.45 Vested (44,788 ) 12.97 Balance as of January 1, 2019 24,065 13.35 Granted 403,360 11.10 Forfeited (36,907 ) 11.31 Vested (49,751 ) 12.40 Balance as of December 31, 2019 340,767 $ 11.83 For the year ended December 31, 2019 , the Company issued 67,291 ( 2018 - 50,644 and 2017 - 36,418 ) restricted shares to directors and 336,069 ( 2018 - nil and 2017 - nil) restricted shares to employees. The restricted shares issued to employees in 2019 vest in equal annual installments over three years based on continued employment. The restricted shares issued to employees in 2015 had an original vesting period of three years from the date of issuance, however, as a result of the grantee’s departure from the Company, these shares were forfeited in the year ended December 31, 2017. The restricted shares issued to directors in 2017 , 2018 and 2019 vest quarterly on July 31, October 31, January 31 and April 30, of each year. Restricted shares with service and performance condition Beginning in December 2014, the Company granted on an annual basis performance-based restricted shares to certain employees pursuant to the Omnibus Plan. Performance-based restricted shares vest based on continued service and the achievement of certain financial performance measures over a three-year measurement period. The number of performance-based restricted shares that will be retained upon vesting will vary based on the level of achievement of the performance goals. The formula for determining the amount of shares that will vest is based on underwriting performance of the property and casualty reinsurance segment including underwriting income and the amount of float generated, as defined in the relevant award agreements. Restricted share award activity for the restricted shares with a service and performance condition for the years ended December 31, 2019 , 2018 and 2017 was as follows: Number of non- vested restricted shares Number of non- vested restricted shares probable of vesting Weighted average grant date fair value Balance as of January 1, 2017 1,381,740 577,486 $ 12.91 Granted 935,825 623,882 12.66 Forfeited (325,568 ) (45,617 ) 12.57 Vested (136,618 ) (136,618 ) 14.60 Change in estimated restricted shares considered probable of vesting n/a (131,930 ) 12.17 Balance as of January 1, 2018 1,855,379 887,203 12.60 Granted 556,403 370,931 14.01 Forfeited (294,977 ) (4,102 ) 13.98 Vested (115,757 ) (115,757 ) 14.00 Change in estimated restricted shares considered probable of vesting n/a 46,945 13.35 Balance as of January 1, 2019 2,001,048 1,185,220 12.80 Granted 862,176 574,784 10.95 Forfeited (823,977 ) (290,552 ) 11.70 Vested (148,718 ) (148,718 ) 11.40 Change in estimated restricted shares considered probable of vesting n/a (6,698 ) 12.92 Balance as of December 31, 2019 1,890,529 1,314,036 $ 12.43 Defined contribution retirement plans The Company's employees are eligible for retirement benefits through defined contribution retirement plans. The Company and employees contribute an amount equal to a specified percentage of each employee's salary. Expenses related to the defined contribution plans were $0.9 million for the year ended December 31, 2019 ( 2018 - $0.9 million and 2017 - $0.8 million )

Non-controlling interests

Non-controlling interests	12 Months Ended
	Dec. 31, 2019
Noncontrolling Interest [Abstract]
Non-controlling interests	Third Point Enhanced LP TP Fund meets the definition of a variable interest entity principally because of the existence of disproportionate rights in the partnership compared to the obligations to absorb the expected losses and right to receive the expected residual returns of TP Fund’s results. As of December 31, 2019 , the Company and TP GP hold interests of approximately 83.5% and 16.1% , respectively, of the net asset value of TP Fund. As a result, both entities hold significant financial interests in TP Fund. However, TP GP controls all of the investment decision making authority and the Company does not have the power to direct the activities which most significantly impact the economic performance of TP Fund. As a result, the Company is not considered the primary beneficiary and does not consolidate TP Fund. Realized gains or losses upon any redemptions of investments are calculated using the weighted average method and the Company records contributions and withdrawals related to its investment in the TP Fund on the transaction date. As of December 31, 2019 , the Company had no unfunded commitments related to TP Fund and the Company’s maximum exposure to loss corresponds to the value of its investments in TP Fund. Under the 2018 LPA, the TPRE Limited Partners have the right to withdraw funds weekly from TP Fund to pay claims and expenses as needed, to meet capital adequacy requirements and to satisfy financing obligations. The TPRE Limited Partners may also withdraw their investment upon the occurrence of certain events specified in the 2018 LPA and may withdraw their investment in full on December 31, 2021 and each successive three-year anniversary of such date. Prior investment structure Noncontrolling interests in related party represents the portion of equity in consolidated subsidiaries not attributable, directly or indirectly, to the Company. Prior to the change in the Company’s investment account structure described in Note 4 , the joint ventures created through the JV Agreements had been considered variable interest entities and had been consolidated in accordance with ASC 810, Consolidation (ASC 810). Since the Company was deemed to be the primary beneficiary, the Company had consolidated the joint ventures and recorded TP GP’s minority interests as redeemable noncontrolling interests in related party and noncontrolling interests in related party in the consolidated balance sheets. A portion of the noncontrolling interest in investment affiliates was subject to contractual withdrawal rights of TP GP, whereas TP GP, at its sole discretion, could withdraw the capital over the minimum capital required to be maintained in its capital accounts. This excess capital was therefore recorded on the Company’s consolidated balance sheets as redeemable noncontrolling interest in related party whereas the required minimum capital was recorded as noncontrolling interests in related party within shareholders’ equity on the Company’s consolidated balance sheets since it does not have withdrawal rights. The following table is a reconciliation of the beginning and ending carrying amounts of redeemable noncontrolling interests in related party, noncontrolling interests in related party and total noncontrolling interests in related party for the year ended December 31, 2018 : Redeemable noncontrolling interests in related party Noncontrolling interests in related party Total noncontrolling interests in related party 2018 2018 2018 Balance, beginning of period $ 108,219 $ 5,407 $ 113,626 Changes in capital account allocation (1) (108,219 ) (5,407 ) (113,626 ) Balance, end of period $ — $ — $ — (1) Changes in capital account allocation include TP GP's redemption in conjunction with the change in the investment account structure. See Note 4 for additional information. In addition, the following table is a reconciliation of beginning and ending carrying amount of total noncontrolling interests in related party resulting from the consolidation of the Company’s joint venture in Third Point Re BDA and Third Point Re USA: Third Point Re BDA Third Point Re USA Total 2018 2018 2018 Balance, beginning of period $ 97,619 $ 16,007 $ 113,626 Net income attributable to total noncontrolling interests in related party 141 82 223 Contributions 564 80 644 Redemptions (1) (98,324 ) (16,169 ) (114,493 ) Balance, end of period $ — $ — $ — (1) Redemptions include TP GP's redemption in conjunction with the change in the investment account structure. See Note 4 for additional information.

Earnings (loss) per share avail

Earnings (loss) per share available to Third Point Re common shareholders	12 Months Ended
	Dec. 31, 2019
Earnings Per Share [Abstract]
Earnings (loss) per share available to Third Point Re common shareholders	The following sets forth the computation of basic and diluted earnings (loss) per share available to Third Point Re common shareholders for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Weighted-average number of common shares outstanding: ($ in thousands, except share and per share amounts) Basic number of common shares outstanding 91,835,990 97,054,315 102,264,094 Dilutive effect of options 125,530 — 1,392,384 Dilutive effect of warrants 91,884 — 1,270,957 Dilutive effect of restricted shares with service and performance condition 598,912 — 299,603 Diluted number of common shares outstanding 92,652,316 97,054,315 105,227,038 Basic earnings (loss) per common share: Net income (loss) available to Third Point Re common shareholders $ 200,619 $ (317,692 ) $ 277,798 Net income allocated to Third Point Re participating common shareholders (643 ) — (263 ) Net income (loss) allocated to Third Point Re common shareholders $ 199,976 $ (317,692 ) $ 277,535 Basic earnings (loss) per share available to Third Point Re common shareholders $ 2.18 $ (3.27 ) $ 2.71 Diluted earnings (loss) per common share: Net income (loss) available to Third Point Re common shareholders $ 200,619 $ (317,692 ) $ 277,798 Net income allocated to Third Point Re participating common shareholders (637 ) — (256 ) Net income (loss) allocated to Third Point Re common shareholders $ 199,982 $ (317,692 ) $ 277,542 Diluted earnings (loss) per share available to Third Point Re common shareholders $ 2.16 $ (3.27 ) $ 2.64 For the years ended December 31, 2019 and 2017 , anti-dilutive options of 3,719,404 and 4,056,588 , respectively, were excluded from the computation of diluted earnings per share. As a result of the net loss for the year ended December 31, 2018, dilutive options, warrants and restricted shares with service and performance conditions totaling 9,820,795

Financial instruments with off-

Financial instruments with off-balance sheet risk or concentrations of credit risk	12 Months Ended
	Dec. 31, 2019
Guarantees [Abstract]
Financial instruments with off-balance sheet risk or concentrations of credit risk	Off-balance sheet risk Subsequent to the change in the Company’s investment account structure described in Note 4 , the Company does not own directly the net investment assets and related liabilities but instead, owns limited partnership interests in TP Fund. There are no off-balance sheet risks associated with the Company’s investment in TP Fund. The Company’s maximum exposure to loss associated with its investment in the TP Fund corresponds to the carrying value of its investments in TP Fund. Concentrations of credit risk Investments Subsequent to the change in the Company’s investment account structure described in Note 4 , the Company does not own directly the net investment assets but instead, owns limited partnership interests in TP Fund. As a result, the Company is no longer exposed directly to credit risk associated with its net investment assets it used to hold. The Company’s maximum exposure to loss associated with its investment in the TP Fund corresponds to the carrying value of its investments in TP Fund. The Company does not have any unfunded capital commitments associated with its investment in TP Fund. Underwriting The Company is exposed to credit risk through reinsurance contracts with companies that write credit risk insurance. The Company’s portfolio of risk is predominantly U.S. mortgage insurance and mortgage credit risk transfer. The Company provides its clients in these lines of business with reinsurance protection against credit deterioration, defaults or other types of financial non-performance. Loss experience in these lines of business has been very good but is cyclical and is affected by the state of the general economic environment. The Company proactively manages the risks associated with these credit-sensitive lines of business by closely monitoring its risk aggregation and by diversifying the underlying risks where possible. The Company has bought some retrocessional coverage against a subset of these risks. The Company has exposure to credit risk as it relates to its business written through brokers, if any of the Company’s brokers are unable to fulfill their contractual obligations with respect to payments to the Company. In addition, in some jurisdictions, if the broker fails to make payments to the insured under the Company’s policy, the Company may remain liable to the insured for the deficiency. The Company’s exposure to such credit risk is somewhat mitigated in certain jurisdictions by contractual terms. The Company has exposure to credit risk related to balances receivable under our reinsurance contracts, including funds withheld and premiums receivable, and the possibility that counterparties may default on their obligations to the Company. The risk of counterparty default is partially mitigated by the fact that any amount owed from a reinsurance counterparty would be netted against any losses or acquisition costs the Company would pay in the future. The Company monitors the collectability of these balances on a regular basis.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Operating leases The Company leases offices space in Bermuda and in New Jersey, U.S.A. The leases have been accounted for as operating leases. Total rent expense for each of the years ended December 31, 2019 , 2018 and 2017 were $0.9 million , $0.8 million and $0.8 million , respectively. Future minimum rental commitments as of December 31, 2019 under these leases are expected to be as follows: 2020 $ 833 2021 236 2022 39 2023 — 2024 — Thereafter — $ 1,108 Agreements Third Point LLC As a result of the 2018 LPA effective August 31, 2018, management fees are charged at the TP Fund level and were calculated based on 1.5% of the investment in TP Fund and multiplied by an exposure multiplier computed by dividing the average daily investment exposure leverage of the TP Fund by the average daily investment exposure leverage of the Offshore Master Fund. As a result of the Amended LPA effective January 1, 2019, the management fee was revised from 1.5% to 1.25% per annum, with no change to the calculation as part of the 2018 LPA . Employment agreements As of December 31, 2019 , the Company has entered into employment agreements with certain of its executive officers. Such employment arrangements provide for compensation in the form of base salary, annual bonus, share-based awards, participation in the Company’s employee benefit programs and the reimbursements of expenses. Investments Under the new investment account structure described in Note 4 , the Company does not have any unfunded commitments or obligations. Financing In February 2015, TPRUSA issued $115.0 million of Notes due February 13, 2025. The Notes bear interest at 7.0% and interest is payable semi-annually on February 13 and August 13 of each year. The Notes are fully and unconditionally guaranteed by Third Point Re, and, in certain circumstances specified in the indenture governing the Notes, certain existing or future subsidiaries of the Company may be required to guarantee the Notes. Letters of Credit See Note 11 for additional information related to the Company’s letter of credit facilities. Litigation From time to time in the normal course of business, the Company may be involved in formal and informal dispute resolution procedures, which may include arbitration or litigation, the outcomes of which determine the rights and obligations under the Company’s reinsurance contracts and other contractual agreements. In some disputes, the Company may seek to enforce its rights under an agreement or to collect funds owed to it. In other matters, the Company may resist attempts by others to collect funds or enforce alleged rights. The Company is not currently involved in any material formal or informal dispute resolution procedures. Reinsurance contracts The Company is subject to customary termination and collateral provisions within certain of its reinsurance contracts, based on reductions of capital and surplus. The inclusion and terms of these provisions vary by contract but are typically set at a 20%

Segment reporting

Segment reporting	12 Months Ended
	Dec. 31, 2019
Segment Reporting [Abstract]
Segment reporting	The determination of the Company’s business segments is based on the manner in which management monitors the performance of its operations. The Company reports one operating segment, Property and Casualty Reinsurance. Non-underwriting income and expenses including: net investment income (loss) , certain general and administrative expenses related to corporate activities, interest expense, foreign exchange (gains) losses and income tax (expense) benefit are presented as a reconciliation to the Company’s consolidated results. The Company does not manage its assets by segment; accordingly, total assets are not allocated to the segments. The following is a summary of the Company’s operating segment results for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Property and Casualty Reinsurance Total Property and Casualty Reinsurance Total Property and Casualty Reinsurance Total Revenues Gross premiums written $ 631,846 $ 631,846 $ 578,252 $ 578,252 $ 641,620 $ 641,620 Gross premiums ceded (9,265 ) (9,265 ) (19,895 ) (19,895 ) (2,475 ) (2,475 ) Net premiums written 622,581 622,581 558,357 558,357 639,145 639,145 Change in net unearned premium reserves 77,561 77,561 63,085 63,085 (92,087 ) (92,087 ) Net premiums earned 700,142 700,142 621,442 621,442 547,058 547,058 Expenses Loss and loss adjustment expenses incurred, net 403,499 403,499 438,414 438,414 370,058 370,058 Acquisition costs, net 295,626 295,626 206,498 206,498 188,904 188,904 General and administrative expenses 23,366 23,366 18,635 18,635 30,656 30,656 Total expenses 722,491 722,491 663,547 663,547 589,618 589,618 Net underwriting loss $ (22,349 ) (22,349 ) $ (42,105 ) (42,105 ) $ (42,560 ) (42,560 ) Net investment income (loss) 282,560 (251,433 ) 391,953 Corporate expenses (30,397 ) (17,606 ) (22,447 ) Other expenses (16,619 ) (9,610 ) (12,674 ) Interest expense (8,228 ) (8,228 ) (8,225 ) Foreign exchange gains (losses) (3,635 ) 7,503 (12,300 ) Income tax (expense) benefit (713 ) 4,010 (11,976 ) Net income attributable to noncontrolling interests in related party — (223 ) (3,973 ) Net income (loss) available to Third Point Re common shareholders $ 200,619 $ (317,692 ) $ 277,798 Property and Casualty Reinsurance - Underwriting Ratios (1) : Loss ratio 57.6 % 70.6 % 67.6 % Acquisition cost ratio 42.2 % 33.2 % 34.5 % Composite ratio 99.8 % 103.8 % 102.1 % General and administrative expense ratio 3.4 % 3.0 % 5.6 % Combined ratio 103.2 % 106.8 % 107.7 % (1) Underwriting ratios are calculated by dividing the related expense by net premiums earned. The following table lists the number of contracts that individually contributed more than 10% of total gross premiums written for the years ended December 31, 2019 , 2018 and 2017 as a percentage of total gross premiums written in the relevant year: 2019 2018 2017 Largest contract 15.2 % 17.5 % 16.1 % Second largest contract n/a 12.1 % 14.1 % Third largest contract n/a n/a 13.1 % Total for contracts contributing greater than 10% each 15.2 % 29.6 % 43.3 % Total for contracts contributing less than 10% each 84.8 % 70.4 % 56.7 % 100.0 % 100.0 % 100.0 % The following table lists counterparties with whom the Company has reinsurance balances receivable representing more than 10% of the Company’s total reinsurance balances receivable as of December 31, 2019 and 2018 : December 31, 2019 December 31, 2018 Counterparty 1 $ 114,252 19.2 % $ 86,155 14.3 % Counterparty 2 105,992 17.8 % 83,079 13.8 % Counterparty 3 88,895 14.9 % 69,641 11.6 % 309,139 51.9 % 238,875 39.7 % Other counterparties representing less than 10% each 286,981 48.1 % 363,573 60.3 % Reinsurance balances receivable $ 596,120 100.0 % $ 602,448 100.0 % The following table provides a breakdown of the Company’s gross premiums written by line of business for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Property $ 144,271 22.8 % $ 9,070 1.6 % $ 136,999 21.4 % Casualty 151,893 24.0 % 235,789 40.8 % 269,759 42.0 % Specialty 248,044 39.3 % 259,173 44.8 % 125,511 19.6 % Total prospective reinsurance contracts 544,208 86.1 % 504,032 87.2 % 532,269 83.0 % Retroactive reinsurance contracts 87,638 13.9 % 74,220 12.8 % 109,351 17.0 % $ 631,846 100.0 % $ 578,252 100.0 % $ 641,620 100.0 % Substantially all of the Company’s business is sourced through reinsurance brokers. The following table sets forth the Company’s premiums written by source that individually contributed more than 10% of total gross premiums written for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Largest broker $ 160,404 25.4 % $ 198,251 34.3 % $ 243,581 38.0 % Second largest broker 150,377 23.8 % 157,542 27.2 % 128,648 20.1 % Third largest broker 137,685 21.8 % 70,524 12.2 % 107,612 16.8 % Other 183,380 29.0 % 151,935 26.3 % 161,779 25.1 % $ 631,846 100.0 % $ 578,252 100.0 % $ 641,620 100.0 % The following table provides a breakdown of the Company’s gross premiums written by domicile of the ceding companies for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 United States $ 326,987 51.8 % $ 326,261 56.4 % $ 352,539 54.9 % United Kingdom 154,909 24.5 % 63,619 11.0 % 203,768 31.8 % Bermuda 142,246 22.5 % 93,406 16.2 % 62,234 9.7 % Other 7,704 1.2 % 94,966 16.4 % 23,079 3.6 % $ 631,846 100.0 % $ 578,252 100.0 % $ 641,620 100.0 %

Statutory Requirements

Statutory Requirements	12 Months Ended
	Dec. 31, 2019
Statutory Requirements [Abstract]
Statutory Requirements	Under the Bermuda Insurance Act 1978, as amended, and related regulations, Third Point Re BDA and Third Point Re USA are subject to capital requirements calculated using the Bermuda Solvency and Capital Requirement (“BSCR”) model, which is a standardized statutory risk-based capital model used to measure the risk associated with Third Point Re BDA’s and Third Point Re USA’s assets, liabilities and premiums. Third Point Re BDA’s and Third Point Re USA’s required statutory capital and surplus under the BSCR model is referred to as the enhanced capital requirement (“ECR”). Third Point Re BDA and Third Point Re USA are required to calculate and submit the ECR to the Bermuda Monetary Authority (“BMA”), annually. Following receipt of the submission of Third Point Re BDA’s and Third Point Re USA’s ECR, the BMA has the authority to impose additional capital requirements (capital add-ons) if it deems necessary. If a company fails to maintain or meet its ECR, the BMA may take various degrees of regulatory action. In 2016, the BMA implemented the economic balance sheet (“EBS”) framework, which is now used as the basis to determine the Company’s ECR. Under the new framework, assets and liabilities are mainly assessed and included on the EBS at fair value, with the insurer’s U.S. GAAP balance sheet serving as a starting point. The model also requires insurers to estimate insurance technical provisions, which consist of the insurer’s insurance related balances valued based on best-estimate cash flows, adjusted to reflect the time value of money using a risk-free discount rate, with the addition of a risk margin to reflect the uncertainty in the underlying cash flows. As of December 31, 2019 and 2018 , Third Point Re BDA and Third Point Re USA met their ECR. As of December 31, 2019 and 2018 , the principal difference between statutory capital and surplus and shareholders’ equity presented in accordance with GAAP is that prepaid expenses is a non-admitted asset for statutory purposes. Third Point Re BDA and Third Point Re USA are also required under their Class 4 licenses to maintain minimum liquidity ratios whereby the value of their relevant assets are not less than 75% of the amount of their relevant liabilities for general business. As of December 31, 2019 and 2018 , Third Point Re BDA and Third Point Re USA met their minimum liquidity ratio requirements. The following is a summary of estimated actual and required statutory capital and surplus, based on the EBS framework, of Third Point Re BDA and Third Point Re USA as of December 31, 2019 and 2018 : December 31, 2019 December 31, 2018 Actual statutory capital and surplus Third Point Re BDA $ 1,298,596 $ 1,043,357 Third Point Re USA 276,185 255,872 Required statutory capital and surplus Third Point Re BDA 555,714 574,405 Third Point Re USA $ 112,601 $ 100,000 The following is a summary of the statutory net income (loss) for Third Point Re and Third Point Re USA for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Third Point Re BDA $ 214,227 $ (272,339 ) $ 265,903 Third Point Re USA $ 9,016 $ (29,491 ) $ 22,310 Dividend restrictions Third Point Re BDA Third Point Re BDA may declare dividends subject to it continuing to meet its solvency and capital requirements, which includes continuing to hold statutory capital and surplus equal to or exceeding its ECR. In addition, Third Point Re BDA is prohibited from declaring or paying in any fiscal year dividends of more than 25% of its prior year’s statutory capital and surplus unless Third Point Re BDA files with the BMA a signed affidavit by at least two members of the Board of Directors attesting that a dividend would not cause Third Point Re BDA to fail to meet its capital requirements. As of December 31, 2019 , Third Point Re BDA could pay dividends in 2020 of approximately $314.5 million (December 31, 2018 - $260.8 million ) without providing an affidavit to the BMA. Third Point Re USA Third Point Re USA may declare dividends subject to it continuing to meet its solvency and capital requirements, which includes continuing to hold statutory capital and surplus equal to or exceeding its ECR. Third Point Re USA is prohibited from declaring or paying in any fiscal year dividends of more than 25% of its prior year’s statutory capital and surplus, unless Third Point Re USA files with the BMA a signed affidavit by at least two members of the Board of Directors attesting that a dividend would not cause Third Point Re USA to fail to meet its capital requirements. Third Point Re USA is also restricted by the amount of shareholder’s equity that is available for the payment of dividends and must maintain a minimum shareholder’s equity of $250.0 million as per the Net Worth Maintenance Agreement. As of December 31, 2019 , Third Point Re USA could pay dividends of approximately $21.6 million (December 31, 2018 - $1.4 million

Supplemental guarantor informat

Supplemental guarantor information	12 Months Ended
	Dec. 31, 2019
Condensed Financial Information Disclosure [Abstract]
Supplemental guarantor information	Third Point Re fully and unconditionally guarantees the $115.0 million of Notes issued by TPRUSA, a wholly owned subsidiary. The following information sets forth the consolidating balance sheets as of December 31, 2019 and 2018 and the consolidating statements of income (loss) and cash flows for the years ended December 31, 2019 , 2018 and 2017 for Third Point Re, TPRUSA and the non-guarantor subsidiaries of Third Point Re. Investments in subsidiaries are accounted for on the equity method; accordingly, entries necessary to consolidate the parent guarantor, TPRUSA and all other subsidiaries are reflected in the eliminations column. CONSOLIDATING BALANCE SHEET As of December 31, 2019 Third Point Re TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Assets Total investments in securities $ 4,000 $ — $ 985,701 $ — $ 989,701 Cash and cash equivalents 10 176 639,229 — 639,415 Restricted cash and cash equivalents — — 1,014,543 — 1,014,543 Investment in subsidiaries 1,419,197 271,624 191,077 (1,881,898 ) — Interest and dividends receivable — — 2,178 — 2,178 Reinsurance balances receivable — — 596,120 — 596,120 Deferred acquisition costs, net — — 154,717 — 154,717 Unearned premiums ceded — — 16,945 — 16,945 Loss and loss adjustment expenses recoverable — — 5,520 — 5,520 Amounts due from (to) affiliates (5,722 ) (3,898 ) 9,620 — — Other assets 764 6,784 13,007 — 20,555 Total assets $ 1,418,249 $ 274,686 $ 3,628,657 $ (1,881,898 ) $ 3,439,694 Liabilities Accounts payable and accrued expenses $ 4,175 $ — $ 13,641 $ — $ 17,816 Reinsurance balances payable — — 81,941 — 81,941 Deposit liabilities — — 172,259 — 172,259 Unearned premium reserves — — 524,768 — 524,768 Loss and loss adjustment expense reserves — — 1,111,692 — 1,111,692 Interest and dividends payable — 3,055 — — 3,055 Senior notes payable, net of deferred costs — 114,089 — — 114,089 Total liabilities 4,175 117,144 1,904,301 — 2,025,620 Shareholders' equity Common shares 9,423 — 1,239 (1,239 ) 9,423 Additional paid-in capital 927,704 191,361 1,591,796 (1,783,157 ) 927,704 Retained earnings (deficit) 476,947 (33,819 ) 131,321 (97,502 ) 476,947 Shareholders’ equity attributable to Third Point Re common shareholders 1,414,074 157,542 1,724,356 (1,881,898 ) 1,414,074 Total liabilities and shareholders’ equity $ 1,418,249 $ 274,686 $ 3,628,657 $ (1,881,898 ) $ 3,439,694 CONSOLIDATING BALANCE SHEET As of December 31, 2018 Third Point Re TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Assets Total investments in securities $ — $ — $ 1,523,728 $ — $ 1,523,728 Cash and cash equivalents — 187 103,996 — 104,183 Restricted cash and cash equivalents — — 609,154 — 609,154 Investment in subsidiaries 1,207,161 251,350 175,758 (1,634,269 ) — Due from brokers — — 1,411 — 1,411 Interest and dividends receivable — — 1,316 — 1,316 Reinsurance balances receivable — — 602,448 — 602,448 Deferred acquisition costs, net — — 203,842 — 203,842 Unearned premiums ceded — — 17,552 — 17,552 Loss and loss adjustment expenses recoverable — — 2,031 — 2,031 Amounts due from (to) affiliates (3,522 ) 52 3,470 — — Other assets 1,673 5,069 13,827 — 20,569 Total assets $ 1,205,312 $ 256,658 $ 3,258,533 $ (1,634,269 ) $ 3,086,234 Liabilities Accounts payable and accrued expenses $ 738 $ 70 $ 6,453 $ — $ 7,261 Reinsurance balances payable — — 69,701 — 69,701 Deposit liabilities — — 145,342 — 145,342 Unearned premium reserves — — 602,936 — 602,936 Loss and loss adjustment expense reserves — — 937,157 — 937,157 Participation agreement with related party investment fund — — 2,297 — 2,297 Interest and dividends payable — 3,055 — — 3,055 Senior notes payable, net of deferred costs — 113,911 — — 113,911 Total liabilities 738 117,036 1,763,886 — 1,881,660 Shareholders’ equity Common shares 9,364 — 1,239 (1,239 ) 9,364 Additional paid-in capital 918,882 176,005 1,557,016 (1,733,021 ) 918,882 Retained earnings (deficit) 276,328 (36,383 ) (63,608 ) 99,991 276,328 Shareholders’ equity attributable to Third Point Re common shareholders 1,204,574 139,622 1,494,647 (1,634,269 ) 1,204,574 Total liabilities and shareholders’ equity $ 1,205,312 $ 256,658 $ 3,258,533 $ (1,634,269 ) $ 3,086,234 CONSOLIDATING STATEMENT OF INCOME Year Ended December 31, 2019 Third Point Re TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Revenues Gross premiums written $ — $ — $ 631,846 $ — $ 631,846 Gross premiums ceded — — (9,265 ) — (9,265 ) Net premiums written — — 622,581 — 622,581 Change in net unearned premium reserves — — 77,561 — 77,561 Net premiums earned — — 700,142 — 700,142 Net investment income — — 282,560 — 282,560 Equity in earnings (losses) of subsidiaries 216,877 9,017 (40 ) (225,854 ) — Total revenues 216,877 9,017 982,662 (225,854 ) 982,702 Expenses Loss and loss adjustment expenses incurred, net — — 403,499 — 403,499 Acquisition costs, net — — 295,626 — 295,626 General and administrative expenses 16,258 (59 ) 37,564 — 53,763 Other expenses — — 16,619 — 16,619 Interest expense — 8,228 — — 8,228 Foreign exchange losses — — 3,635 — 3,635 Total expenses 16,258 8,169 756,943 — 781,370 Income before income tax (expense) benefit 200,619 848 225,719 (225,854 ) 201,332 Income tax (expense) benefit — 1,716 (2,429 ) — (713 ) Net income 200,619 2,564 223,290 (225,854 ) 200,619 Net income attributable to noncontrolling interests in related party — — — — — Net income available to Third Point Re common shareholders $ 200,619 $ 2,564 $ 223,290 $ (225,854 ) $ 200,619 CONSOLIDATING STATEMENT OF LOSS Year Ended December 31, 2018 Third Point Re TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Revenues Gross premiums written $ — $ — $ 578,252 $ — $ 578,252 Gross premiums ceded — — (19,895 ) — (19,895 ) Net premiums written — — 558,357 — 558,357 Change in net unearned premium reserves — — 63,085 — 63,085 Net premiums earned — — 621,442 — 621,442 Net investment loss — — (251,433 ) — (251,433 ) Equity in losses of subsidiaries (310,552 ) (29,492 ) (57 ) 340,101 — Total revenues (310,552 ) (29,492 ) 369,952 340,101 370,009 Expenses Loss and loss adjustment expenses incurred, net — — 438,414 — 438,414 Acquisition costs, net — — 206,498 — 206,498 General and administrative expenses 7,140 47 29,054 — 36,241 Other expenses — — 9,610 — 9,610 Interest expense — 8,228 — — 8,228 Foreign exchange gains — — (7,503 ) — (7,503 ) Total expenses 7,140 8,275 676,073 — 691,488 Loss before income tax (expense) benefit (317,692 ) (37,767 ) (306,121 ) 340,101 (321,479 ) Income tax (expense) benefit — (419 ) 4,429 — 4,010 Net loss (317,692 ) (38,186 ) (301,692 ) 340,101 (317,469 ) Net income attributable to noncontrolling interests in related party — — (223 ) — (223 ) Net loss attributable to Third Point Re common shareholders $ (317,692 ) $ (38,186 ) $ (301,915 ) $ 340,101 $ (317,692 ) CONSOLIDATING STATEMENT OF INCOME Year Ended December 31, 2017 Third Point Re TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Revenues Gross premiums written $ — $ — $ 641,620 $ — $ 641,620 Gross premiums ceded — — (2,475 ) — (2,475 ) Net premiums written — — 639,145 — 639,145 Change in net unearned premium reserves — — (92,087 ) — (92,087 ) Net premiums earned — — 547,058 — 547,058 Net investment income — — 391,953 — 391,953 Equity in earnings (losses) of subsidiaries 283,088 22,309 (57 ) (305,340 ) — Total revenues 283,088 22,309 938,954 (305,340 ) 939,011 Expenses Loss and loss adjustment expenses incurred, net — — 370,058 — 370,058 Acquisition costs, net — — 188,904 — 188,904 General and administrative expenses 5,290 49 47,764 — 53,103 Other expenses — — 12,674 — 12,674 Interest expense — 8,225 — — 8,225 Foreign exchange losses — — 12,300 — 12,300 Total expenses 5,290 8,274 631,700 — 645,264 Income before income tax (expense) benefit 277,798 14,035 307,254 (305,340 ) 293,747 Income tax (expense) benefit — 3,062 (15,038 ) — (11,976 ) Net income 277,798 17,097 292,216 (305,340 ) 281,771 Net income attributable to noncontrolling interests in related party — — (3,973 ) — (3,973 ) Net income available to Third Point Re common shareholders $ 277,798 $ 17,097 $ 288,243 $ (305,340 ) $ 277,798 CONSOLIDATING STATEMENT OF CASH FLOWS Year Ended December 31, 2019 Third Point Re TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Operating activities Net income $ 200,619 $ 2,564 $ 223,290 $ (225,854 ) $ 200,619 Adjustments to reconcile net income to net cash provided by (used in) operating activities: Equity in (earnings) losses of subsidiaries (216,877 ) (9,017 ) 40 225,854 — Share compensation expense 2,653 — 4,408 — 7,061 Net interest expense on deposit liabilities — — 5,879 — 5,879 Net realized and unrealized gain on investments and derivatives — — (2,522 ) — (2,522 ) Net realized and unrealized gain on investment in related party investment fund — — (249,626 ) — (249,626 ) Net foreign exchange losses — — 3,635 — 3,635 Amortization of premium and accretion of discount, net — 178 (1,560 ) — (1,382 ) Changes in assets and liabilities: Reinsurance balances receivable — — 30,039 — 30,039 Deferred acquisition costs, net — — 49,125 — 49,125 Unearned premiums ceded — — 607 — 607 Loss and loss adjustment expenses recoverable — — (3,489 ) — (3,489 ) Other assets 909 (1,715 ) 634 — (172 ) Interest and dividends receivable, net — — (862 ) — (862 ) Unearned premium reserves — — (78,168 ) — (78,168 ) Loss and loss adjustment expense reserves — — 157,849 — 157,849 Accounts payable and accrued expenses 3,437 (71 ) 7,189 — 10,555 Reinsurance balances payable — — 11,964 — 11,964 Amounts due from (to) affiliates 2,200 3,950 (6,150 ) — — Net cash provided by (used in) operating activities (7,059 ) (4,111 ) 152,282 — 141,112 Investing activities Proceeds from redemptions from related party investment fund — — 760,000 — 760,000 Contributions to related party investment fund — — (87,000 ) — (87,000 ) Change in participation agreement with related party investment fund — — (2,297 ) — (2,297 ) Purchases of investments (4,000 ) — (327,463 ) — (331,463 ) Proceeds from sales and maturities of investments — — 446,206 — 446,206 Change in due to/from brokers, net — — 1,411 — 1,411 Contributed capital to subsidiaries (15,000 ) 15,000 — — — Contributed capital from parent and/or subsidiaries — (15,000 ) 15,000 — — Net cash provided by (used in) investing activities (19,000 ) — 805,857 — 786,857 Financing activities Proceeds from issuance of Third Point Re common shares, net of costs 1,888 — — — 1,888 Taxes paid on withholding shares (68 ) — — — (68 ) Net proceeds from deposit liability contracts — — 10,832 — 10,832 Dividend received by (paid to) parent 24,249 4,100 (28,349 ) — — Net cash provided by (used in) financing activities 26,069 4,100 (17,517 ) — 12,652 Net increase (decrease) in cash, cash equivalents and restricted cash 10 (11 ) 940,622 — 940,621 Cash, cash equivalents and restricted cash at beginning of period — 187 713,150 — 713,337 Cash, cash equivalents and restricted cash at end of period $ 10 $ 176 $ 1,653,772 $ — $ 1,653,958 CONSOLIDATING STATEMENT OF CASH FLOWS Year Ended December 31, 2018 Third Point Re TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Operating activities Net loss $ (317,692 ) $ (38,186 ) $ (301,692 ) $ 340,101 $ (317,469 ) Adjustments to reconcile net loss to net cash provided by (used in) operating activities: Equity in losses of subsidiaries 310,552 29,492 57 (340,101 ) — Share compensation expense 610 — 4,346 — 4,956 Net interest income on deposit liabilities — — (1,273 ) — (1,273 ) Net realized and unrealized gain on investments and derivatives — — (34,145 ) — (34,145 ) Net realized and unrealized loss on investment in related party investment fund — — 280,847 — 280,847 Net foreign exchange gains — — (7,503 ) — (7,503 ) Amortization of premium and accretion of discount, net — 178 3,956 — 4,134 Changes in assets and liabilities: Reinsurance balances receivable — — (120,620 ) — (120,620 ) Deferred acquisition costs, net — — 54,951 — 54,951 Unearned premiums ceded — — (16,503 ) — (16,503 ) Loss and loss adjustment expenses recoverable — — (918 ) — (918 ) Other assets (1,009 ) (5,069 ) (7,408 ) — (13,486 ) Interest and dividends receivable, net — — (2,716 ) — (2,716 ) Unearned premium reserves — — (46,582 ) — (46,582 ) Loss and loss adjustment expense reserves — — 225,670 — 225,670 Accounts payable and accrued expenses (25 ) 5,513 (30,172 ) — (24,684 ) Reinsurance balances payable — — 28,728 — 28,728 Amounts due from (to) affiliates 2,234 360 (2,594 ) — — Net cash provided by (used in) operating activities (5,330 ) (7,712 ) 26,429 — 13,387 Investing activities Proceeds from redemptions from related party investment fund — — 142,968 — 142,968 Contributions to related party investment fund — — (136,626 ) — (136,626 ) Change in participation agreement with related party investment fund — — (20,852 ) — (20,852 ) Purchases of investments — — (3,483,319 ) — (3,483,319 ) Proceeds from sales and maturities of investments — — 3,475,515 — 3,475,515 Purchases of investments to cover short sales — — (853,798 ) — (853,798 ) Proceeds from short sales of investments — — 800,508 — 800,508 Change in due to/from brokers, net — — 482,778 — 482,778 Decrease in securities sold under an agreement to repurchase — — (29,618 ) — (29,618 ) Contributed capital to subsidiaries (10,000 ) 10,000 — — — Contributed capital from parent and/or subsidiaries — (10,000 ) 10,000 — — Net cash provided by (used in) investing activities (10,000 ) — 387,556 — 377,556 Financing activities Taxes paid on withholding shares (74 ) — — — (74 ) Purchases of Third Point Re common shares under share repurchase program (138,705 ) — — — (138,705 ) Net proceeds from deposit liability contracts — — 9,790 — 9,790 Change in total noncontrolling interests in related party, net — — (97,950 ) — (97,950 ) Dividend received by (paid to) parent 154,100 7,700 (161,800 ) — — Net cash provided by (used in) financing activities 15,321 7,700 (249,960 ) — (226,939 ) Net increase (decrease) in cash, cash equivalents and restricted cash (9 ) (12 ) 164,025 — 164,004 Cash, cash equivalents and restricted cash at beginning of period 9 199 549,125 — 549,333 Cash, cash equivalents and restricted cash at end of period $ — $ 187 $ 713,150 $ — $ 713,337 CONSOLIDATING STATEMENT OF CASH FLOWS Year Ended December 31, 2017 Third Point Re TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Operating activities Net income $ 277,798 $ 17,097 $ 292,216 $ (305,340 ) $ 281,771 Adjustments to reconcile net income to net cash used in operating activities: Equity in (earnings) losses of subsidiaries (283,088 ) (22,309 ) 57 305,340 — Share compensation expense 298 — 3,301 — 3,599 Net interest expense on deposit liabilities — — 2,800 — 2,800 Net realized and unrealized gain on investments and derivatives — — (480,045 ) — (480,045 ) Net foreign exchange losses — — 12,300 — 12,300 Amortization of premium and accretion of discount, net — 178 295 — 473 Changes in assets and liabilities: Reinsurance balances receivable — — (86,606 ) — (86,606 ) Deferred acquisition costs, net — — (37,175 ) — (37,175 ) Unearned premiums ceded — — (354 ) — (354 ) Loss and loss adjustment expenses recoverable — — (1,112 ) — (1,112 ) Other assets (27 ) 5,507 3,657 — 9,137 Interest and dividends receivable, net — (2 ) 3,565 — 3,563 Unearned premium reserves — — 92,442 — 92,442 Loss and loss adjustment expense reserves — — 97,922 — 97,922 Accounts payable and accrued expenses (388 ) (8,845 ) 33,445 — 24,212 Reinsurance balances payable — — (1,463 ) — (1,463 ) Amounts due from (to) affiliates 1,146 (8,806 ) 7,660 — — Net cash used in operating activities (4,261 ) (17,180 ) (57,095 ) — (78,536 ) Investing activities Purchases of investments — — (3,099,525 ) — (3,099,525 ) Proceeds from sales of investments — — 3,228,251 — 3,228,251 Purchases of investments to cover short sales — — (791,753 ) — (791,753 ) Proceeds from short sales of investments — — 1,048,552 — 1,048,552 Change in due to/from brokers, net — — (149,898 ) — (149,898 ) Increase in securities sold under an agreement to repurchase — — 29,618 — 29,618 Net cash provided by investing activities — — 265,245 — 265,245 Financing activities Proceeds from issuance of common shares, net of costs 1,505 — — — 1,505 Purchases of Third Point Re common shares under share repurchase program (40,864 ) — — — (40,864 ) Net proceeds from deposit liability contracts — — 19,113 — 19,113 Change in total noncontrolling interests in related party, net — — 73,979 — 73,979 Dividend received by (paid to) parent 42,000 17,300 (59,300 ) — — Net cash provided by financing activities 2,641 17,300 33,792 — 53,733 Net increase (decrease) in cash, cash equivalents and restricted cash (1,620 ) 120 241,942 — 240,442 Cash, cash equivalents and restricted cash at beginning of period 1,629 79 307,183 — 308,891 Cash, cash equivalents and restricted cash at end of period $ 9 $ 199 $ 549,125 $ — $ 549,333

Quarterly Financial Results

Quarterly Financial Results	12 Months Ended
	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Quarterly financial results	Three months ended December 31, September 30, June 30, March 31, Revenues Gross premiums written $ 134,230 $ 95,388 $ 82,637 $ 319,591 Gross premiums ceded (5,964 ) (1,116 ) (1,473 ) (712 ) Net premiums written 128,266 94,272 81,164 318,879 Change in net unearned premium reserves 70,126 108,976 64,288 (165,829 ) Net premiums earned 198,392 203,248 145,452 153,050 Net investment income (loss) 61,614 (3,138 ) 69,131 154,953 Total revenues 260,006 200,110 214,583 308,003 Expenses Loss and loss adjustment expenses incurred, net 140,394 85,703 82,334 95,068 Acquisition costs, net 61,851 118,271 58,006 57,498 General and administrative expenses 12,744 9,237 19,650 12,132 Other expenses 3,625 5,058 3,811 4,125 Interest expense 2,074 2,074 2,051 2,029 Foreign exchange (gains) losses 10,298 (4,921 ) (4,260 ) 2,518 Total expenses 230,986 215,422 161,592 173,370 Income (loss) before income tax (expense) benefit 29,020 (15,312 ) 52,991 134,633 Income tax (expense) benefit 718 213 74 (1,718 ) Net income (loss) 29,738 (15,099 ) 53,065 132,915 Net income attributable to noncontrolling interests in related party — — — — Net income (loss) available to Third Point Re common shareholders $ 29,738 $ (15,099 ) $ 53,065 $ 132,915 Earnings (loss) per share available to Third Point Re common shareholders Basic earnings (loss) per share available to Third Point Re common shareholders $ 0.32 $ (0.16 ) $ 0.58 $ 1.45 Diluted earnings (loss) per share available to Third Point Re common shareholders $ 0.32 $ (0.16 ) $ 0.57 $ 1.43 Weighted average number of common shares used in the determination of earnings (loss) per share Basic 91,989,469 91,903,556 91,776,870 91,669,810 Diluted 92,696,491 91,903,556 92,801,799 92,578,933 Three months ended December 31, September 30, June 30, March 31, Revenues Gross premiums written $ 120,063 $ 30,064 $ 49,765 $ 378,360 Gross premiums ceded (1,770 ) — (3,479 ) (14,646 ) Net premiums written 118,293 30,064 46,286 363,714 Change in net unearned premium reserves 91,177 97,929 95,207 (221,228 ) Net premiums earned 209,470 127,993 141,493 142,486 Net investment income (loss) (276,810 ) (3,590 ) 31,175 (2,208 ) Total revenues (67,340 ) 124,403 172,668 140,278 Expenses Loss and loss adjustment expenses incurred, net 173,088 88,706 84,000 92,620 Acquisition costs, net 56,668 40,841 57,584 51,405 General and administrative expenses 7,553 9,511 9,696 9,481 Other (income) expenses 2,994 (1,362 ) 3,983 3,995 Interest expense 2,074 2,074 2,051 2,029 Foreign exchange (gains) losses (3,288 ) (1,979 ) (8,847 ) 6,611 Total expenses 239,089 137,791 148,467 166,141 Income (loss) before income tax (expense) benefit (306,429 ) (13,388 ) 24,201 (25,863 ) Income tax (expense) benefit 8,417 111 (4,390 ) (128 ) Net income (loss) (298,012 ) (13,277 ) 19,811 (25,991 ) Net income attributable to noncontrolling interests in related party — (4 ) (209 ) (10 ) Net income (loss) available to Third Point Re common shareholders $ (298,012 ) $ (13,281 ) $ 19,602 $ (26,001 ) Earnings (loss) per share available to Third Point Re common shareholders Basic earnings (loss) per share available to Third Point Re common shareholders $ (3.24 ) $ (0.14 ) $ 0.20 $ (0.26 ) Diluted earnings (loss) per share available to Third Point Re common shareholders $ (3.24 ) $ (0.14 ) $ 0.19 $ (0.26 ) Weighted average number of common shares used in the determination of earnings (loss) pe r share Basic 91,967,831 95,671,385 99,498,901 101,195,747 Diluted 91,967,831 95,671,385 102,032,485 101,195,747

Schedule I - Summary of Investm

Schedule I - Summary of Investments - Other than Investments in Related Parties	12 Months Ended
	Dec. 31, 2019
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Abstract]
Schedule I - Summary of Investments - Other than Investments in Related Parties	Schedule I - Summary of Investments - Other than Investments in Related Parties Cost Fair value Balance sheet value Assets Private common equity securities $ 1,000 $ 1,000 $ 1,000 Private preferred equity securities 3,000 3,000 3,000 Total equities 4,000 4,000 4,000 U.S. Treasury securities 101,413 101,186 101,186 Sovereign debt 27,917 23,885 23,885 Total debt securities 129,330 125,071 125,071 Total investments in securities $ 133,330 $ 129,071 $ 129,071

Schedule III - Supplementary In

Schedule III - Supplementary Insurance Information	12 Months Ended
	Dec. 31, 2019
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Abstract]
Schedule III - Supplementary Insurance Information	Schedule III - Supplementary Insurance Information For the years ended December 31, 2019 , 2018 and 2017 As of and for the year ended December 31, 2019 Deferred acquisition costs, net Loss and loss adjustment expense reserves Unearned premium Net premiums earned Net investment income Other expenses Loss and loss adjustment expenses incurred, net Amortization of deferred acquisition costs, net Other operating expenses Net premiums written Property and Casualty Reinsurance $ 154,717 $ 1,111,692 $ 524,768 $ 700,142 $ — $ — $ 403,499 $ 295,626 $ 23,366 $ 622,581 Corporate (1) — — — — 282,560 16,619 — — 30,397 — $ 154,717 $ 1,111,692 $ 524,768 $ 700,142 $ 282,560 $ 16,619 $ 403,499 $ 295,626 $ 53,763 $ 622,581 As of and for the year ended December 31, 2018 Deferred acquisition costs, net Loss and loss adjustment expense reserves Unearned premium Net premiums earned Net investment loss Other expenses Loss and loss adjustment expenses incurred, net Amortization of deferred acquisition costs, net Other operating expenses Net premiums written Property and Casualty Reinsurance $ 203,842 $ 937,157 $ 602,936 $ 621,442 $ — $ — $ 438,414 $ 206,498 $ 18,635 $ 558,357 Corporate (1) — — — — (251,433 ) 9,610 — — 17,606 — $ 203,842 $ 937,157 $ 602,936 $ 621,442 $ (251,433 ) $ 9,610 $ 438,414 $ 206,498 $ 36,241 $ 558,357 As of and for the year ended December 31, 2017 Deferred acquisition costs, net Loss and loss adjustment expense reserves Unearned premium Net premiums earned Net investment income Other expenses Loss and loss adjustment expenses incurred, net Amortization of deferred acquisition costs, net Other operating expenses Net premiums written Property and Casualty Reinsurance $ 258,793 $ 720,570 $ 649,518 $ 547,058 $ — $ — $ 370,058 $ 188,904 $ 30,656 $ 639,145 Corporate (1) — — — — 391,953 12,674 — — 22,447 — $ 258,793 $ 720,570 $ 649,518 $ 547,058 $ 391,953 $ 12,674 $ 370,058 $ 188,904 $ 53,103 $ 639,145 (1) Corporate is comprised of non-underwriting income and expenses.

Schedule IV - Reinsurance

Schedule IV - Reinsurance	12 Months Ended
	Dec. 31, 2019
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Abstract]
Schedule IV - Reinsurance	Schedule IV - Reinsurance For the years ended December 31, 2019 , 2018 and 2017 Direct gross premiums written Ceded to other companies Assumed from other companies Net amount Percentage of amount assumed to net Year ended December 31, 2019 $ — $ 9,265 $ 631,846 $ 622,581 99 % Year ended December 31, 2018 $ — $ 19,895 $ 578,252 $ 558,357 97 % Year ended December 31, 2017 $ — $ 2,475 $ 641,620 $ 639,145 100 %

Significant accounting polici_2

Significant accounting policies (Policies)	12 Months Ended
	Dec. 31, 2019
Accounting Policies [Abstract]
Use of estimates	Use of estimates The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported and disclosed amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The major estimates reflected in the Company’s consolidated financial statements include, but are not limited to, the loss and loss adjustment expense reserves, estimates of written and earned premiums and fair value of financial instruments.
Cash and restricted cash and cash equivalents	Cash, cash equivalents and restricted cash Cash and cash equivalents consist of cash held in banks and other short-term, highly liquid investments with original maturity dates of ninety days or less. Restricted cash and cash equivalents consist of cash held in trust accounts securing obligations under certain reinsurance contracts and cash held with brokers and in trust accounts securing letters of credit issued under credit facilities.
Premium revenue recognition	Premium revenue recognition To the extent that the amount of written premium is estimable, the Company estimates the ultimate premiums for the entire contract period and records this estimate at the inception of the contract. For contracts where the full written premium is not estimable at inception, the Company records written premium for the portion of the contract period for which the amount is estimable. These estimates are based primarily on information in the underlying contracts as well as information provided by clients and/or brokers. Changes in premium estimates are expected and may result in adjustments in any reporting period. These estimates change over time as additional information regarding the underlying business volume is obtained. Any subsequent adjustments arising on such estimates are recorded in the period in which they are determined. Premiums written are earned over the exposure period in proportion to the period of risk covered. Reinstatement premiums are earned when written. Unearned premiums represent the portion of premiums written that relate to the remaining term of the underlying policies in force. Premiums for retroactive exposures in reinsurance contracts are earned at the inception of the contract, as all of the underlying loss events covered by these exposures occurred in the past. If the estimated loss and loss adjustment expense reserve differs from the premium received at inception of a retroactive reinsurance contract, the resulting difference is deferred and recognized over the estimated claim payment period of the related contract with the periodic amortization reflected in earnings as a component of loss and loss adjustment expenses incurred.
Reinsurance premiums ceded	Reinsurance premiums ceded From time to time, the Company reduces the risk of losses on business written by reinsuring certain risks and exposures with other reinsurers. The Company remains liable to the extent that any retrocessionaire fails to meet its obligations and to the extent that the Company does not hold sufficient security for their unpaid obligations. Ceded premiums are written during the period in which the risks incept and are earned over the contract period in proportion to the period of risk covered. Unearned premiums ceded consist of the unexpired portion of reinsurance ceded. Reinsurance Reinsurance recoverables include claims we paid and estimates of unpaid losses and loss adjustment expenses that are subject to reimbursement under reinsurance and retrocessional contracts. The method for determining reinsurance recoverables for unpaid losses and loss adjustment expenses involves reviewing actuarial estimates of gross unpaid losses and loss adjustment expenses to determine our ability to cede unpaid losses and loss adjustment expenses under our existing reinsurance contracts. This method is continually reviewed and updated and any resulting adjustments are reflected in earnings in the period identified. Reinsurance premiums, commissions and expense reimbursements are accounted for on a basis consistent with those used in accounting for the original policies issued and the term of the reinsurance contracts. Amounts recoverable from reinsurers for losses and loss adjustment expenses for which the Company has not been relieved of its legal obligations to the policyholder are reported as assets.
Deferred acquisition costs	Deferred acquisition costs Acquisition costs consist of commissions, brokerage and excise taxes that are related directly to the successful acquisition of new or renewal reinsurance contracts. These costs are deferred and amortized over the period in which the related premiums are earned. The Company evaluates the recoverability of deferred acquisition costs by determining if the sum of future earned premiums and anticipated investment income is greater than expected future loss and loss adjustment expenses and acquisition costs. If a loss is probable on the unexpired portion of contracts in force, a premium deficiency loss is recognized. As of December 31, 2019 , deferred acquisition costs are considered to be fully recoverable and no premium deficiency has been recorded. Acquisition costs also include profit commissions that are expensed when incurred. Profit commissions are calculated and accrued based on the expected loss experience for contracts and recorded when the current loss estimate indicates that a profit commission is probable under the contract terms.
Loss and loss adjustment expense reserves	Loss and loss adjustment expense reserves The Company’s loss and loss adjustment expense reserves include case reserves, reserves for losses incurred but not yet reported (“IBNR reserves”) and deferred gains on retroactive reinsurance contracts. Case reserves are established for losses that have been reported, but not yet paid. IBNR reserves represent the estimated loss and loss adjustment expenses that have been incurred by insureds and reinsureds but not yet reported to the insurer or reinsurer, including unknown future development on loss and loss adjustment expenses that are known to the insurer or reinsurer. IBNR reserves are established by management based on actuarially determined estimates of ultimate loss and loss adjustment expenses. Deferred gains represent the underwriting profit related to retroactive exposures in reinsurance contracts at inception and are deferred and amortized over the estimated future settlement period of the contract. Deferred gains are included in loss and loss adjustment expense reserves. If the premium received is lower than the estimated loss and loss adjustment expense reserves assumed at inception of a retroactive reinsurance contract, the resulting difference is deferred and recorded in other assets. This difference is also amortized over the estimated future settlement period of the contract. Inherent in the estimate of ultimate loss and loss adjustment expenses are expected trends in claim severity and frequency and other factors that may vary significantly as claims are settled. Accordingly, ultimate loss and loss adjustment expenses may differ materially from the amounts recorded in the consolidated financial statements. These estimates are reviewed regularly and, as experience develops and new information becomes known, the reserves are adjusted as necessary. Such adjustments, if any, are recorded in the consolidated statements of income (loss) in the period in which they become known.
Deposit liabilities	Deposit liabilities Certain contracts do not transfer sufficient insurance risk to be deemed reinsurance contracts and are accounted for using the deposit method of accounting. Management exercises judgment in determining whether contracts transfer sufficient risk to be accounted for as reinsurance contracts. Using the deposit method of accounting, a deposit liability, rather than written premium, is initially recorded based upon the consideration received less any explicitly identified premiums or fees. In subsequent periods, the deposit liability is adjusted by calculating the effective yield on the deposit to reflect actual payments to date and future expected payments. In some cases, the effective yield on the contract may be negative, which will result in the recognition of other income.
Fair value measurement	Fair value measurement The Company determines the fair value of financial instruments in accordance with current accounting guidance, which defines fair value and establishes a three level fair value hierarchy based upon the transparency of inputs used in the valuation of an asset or liability. Fair value is defined as the price that the Company would receive to sell an asset or would pay to transfer a liability in an orderly transaction between market participants at the measurement date. The Company determines the estimated fair value of each individual security utilizing the highest level inputs available. The fair value of the Company’s assets and liabilities, which qualify as financial instruments, approximates the carrying amounts presented in the consolidated balance sheets. U.S. GAAP disclosure requirements establish a framework for measuring fair value, including a three-level hierarchy for fair value measurements based upon the transparency of inputs to the valuation of an asset or liability. The three-level hierarchy of inputs is summarized below: • Level 1 – Quoted prices available in active markets/exchanges for identical investments as of the reporting date. • Level 2 – Observable inputs to the valuation methodology other than unadjusted quoted market prices for identical assets or liabilities in active markets. Level 2 inputs include, but are not limited to, prices quoted for similar assets or liabilities in active markets/exchanges, prices quoted for identical or similar assets or liabilities in markets that are not active and fair values determined through the use of models or other valuation methodologies. • Level 3 – Pricing inputs unobservable for the investment and include activities where there is little, if any, market activity for the investment. The inputs applied in the determination of fair value require significant management judgment and estimation. Inputs refer broadly to the assumptions that market participants would use in pricing the asset or liability, including assumptions about risk. For example, the risk inherent in a particular valuation technique used to measure fair value including such a pricing model and/or the risk inherent in the inputs to the valuation technique. Inputs may be observable or unobservable. Observable inputs are inputs that reflect the assumptions market participants would use in pricing the asset or liability based on market data obtained from sources other than those of the reporting entity. Unobservable inputs are inputs that reflect the reporting entity’s own assumptions about the assumptions market participants would use in pricing the asset or liability developed based on the best information available in the circumstances. In certain cases, the inputs used to measure fair value may fall into different levels of the fair value hierarchy. In such cases, an investment’s level within the fair value hierarchy is based on the lowest level of input that is significant to the fair value measurement. The Company’s assessment of the significance of a particular input to the fair value measurement requires judgment, and considers factors specific to the investment.
Investments	Investments Investments - Trading The Company’s investments are classified as “trading securities” and are carried at fair value with changes in fair value included in earnings in the consolidated statements of income (loss) . The fair value of the Company’s investments are based on quoted market prices, or when such prices are not available, by reference to broker or underwriter bid indications, industry recognized pricing vendors, and/or internal pricing valuation techniques. Investment transactions are recorded on a trade date basis with balances pending settlement included in due to/from brokers in the consolidated balance sheets. Realized gains and losses are determined using cost calculated on a specific identification basis. Dividends are recorded on the ex-dividend date. Income and expenses are recorded on the accrual basis including interest and premiums amortized and discounts accreted. Investment in related party investment fund The Company invests in TP Fund, a related party investment fund. The Company’s investment in TP Fund is stated at its fair value, that generally represents the Company’s proportionate interest in TP Fund as reported by the fund based on the net asset value (“NAV”) provided by the fund administrator. Increases or decreases in such fair value are recorded within net investment income from investment in related party investment fund in the Company’s consolidated statements of income. Realized gains or losses upon any redemptions of investments in TP Fund are calculated using the weighted average method. The Company records contributions and withdrawals related to its investments in TP Fund on the transaction date.
Derivatives	Derivatives Investments Prior to the change in the investment account structure, derivative instruments within our investment assets managed by our investment manager, Third Point LLC, were recorded in the consolidated balance sheets at fair value, with changes in fair values and realized gains and losses recognized in net investment income (loss) in the consolidated statements of income (loss) . Derivatives served as a key component of the Company’s investment strategy and were utilized primarily to structure the portfolio, or individual investments, and to economically match the investment objectives of the Company. The Company’s derivatives did not qualify as hedges for financial reporting purposes and were recorded in the consolidated balance sheets on a gross basis and not offset against any collateral pledged or received. Pursuant to the International Swaps and Derivatives Association (“ISDA”) master agreements, securities lending agreements and other derivatives agreements, the Company and its counterparties typically have the ability to net certain payments owed to each other in specified circumstances. In addition, in the event a party to one of the ISDA master agreements, securities lending agreements or other derivatives agreements defaults, or a transaction is otherwise subject to termination, the non-defaulting party generally has the right to set off against payments owed to the defaulting party or collateral held by the non-defaulting party. The Company entered into derivative contracts to manage credit risk, interest rate risk, currency exchange risk and other exposure risks. The Company used derivatives in connection with its risk-management activities to economically hedge certain risks and to gain exposure to certain investments. The utilization of derivative contracts also allowed for an efficient means by which to trade certain asset classes. Fair values of derivatives were determined by using quoted market prices, industry recognized pricing vendors and counterparty quotes when available; otherwise fair values were based on pricing models that consider the time value of money, volatility and the current market and contractual prices of underlying financial instruments. Embedded derivatives Certain of the Company’s reinsurance contracts contain interest crediting features that vary based on the net investment return on investments managed by Third Point LLC. These contractual features are considered embedded derivatives in accordance with U.S. GAAP. We include the estimated fair value of these embedded derivatives in the consolidated balance sheets with the host contract in order to reflect the expected settlement of these features with the host contract. The change in estimated fair value of these embedded derivatives are recorded in other expenses in the consolidated statements of income (loss).
Share-based compensation	Share-based compensation The Company accounts for its share-based compensation transactions using the fair value of the award at the grant date and accounts for forfeitures when they occur. Determining the fair value of share purchase options at the grant date requires estimation and judgment. The Company uses an option-pricing model (Black-Scholes) to calculate the fair value of share purchase options. For share purchase options or restricted share awards granted that contain both a service and performance condition, the Company recognizes share compensation expense only for the portion of the options or restricted share awards that are considered probable of vesting. Share compensation for share purchase options or restricted share awards considered probable of vesting are expensed over the service (vesting) period on a graded vesting basis. The probability of share purchase options or restricted share awards vesting is evaluated at each reporting period. When the share purchase options or restricted share awards are considered probable of vesting, the Company records a true up of share compensation expense from the grant date (service inception date) to the current reporting period end based on the fair value of the options or restricted share awards at the grant date. The Company measures grant date fair value for restricted share awards, with a service condition only, based on the price of its common shares at the grant date and the expense is recognized on a straight-line basis over the vesting period.
Warrants	Warrants The Company accounts for warrant contracts issued to certain of its founding investors (“Founders”) in conjunction with the initial capitalization of the Company by using either the physical settlement or net-share settlement methods. The fair value of these warrants was recorded in equity as additional paid-in capital. The fair value of warrants issued are estimated on the grant date using the Black-Scholes option-pricing model. The Company accounts for certain warrant contracts issued to an advisor, where services have been received by the Company, in part, in exchange for equity instruments, based on the fair value of such services. The associated cost of these warrants has been recorded as capital raise costs and is included in additional paid in capital in the consolidated statements of shareholders’ equity.
Offering costs	Debt offering costs Costs incurred in issuing debt, which includes underwriters’ fees, legal and accounting fees, printing and other fees are capitalized and presented as a direct deduction from the principal amount of senior notes payable in the consolidated balance sheets. These costs are amortized over the term of the debt and are included in interest expense in the consolidated statements of income (loss) .
Other Expenses [Policy Text Block]	Other expenses Other expenses are comprised of expenses relating to interest crediting features in certain reinsurance and deposit contracts as well as changes in value of embedded derivatives in reinsurance contracts and deposit liability contracts that have variable interest crediting features. Variable and fixed interest crediting features are calculated on funds transferred to the Company where interest is credited based on actual cash received into a notional experience account. The ceding company can typically elect to commute at specific points in time in exchange for the amounts held in the notional experience account. For those contracts that contain variable interest crediting features, actual investment returns realized by the Company are included in the calculation, which can increase the overall effective interest crediting rate on those contracts. Variable interest credit features are accounted for as embedded derivatives. Fixed interest credits on reinsurance contracts and deposit liability contracts and changes in value of embedded derivative are included in other expenses in the consolidated statements of income (loss) .
Foreign currency transactions	Foreign currency transactions The Company’s functional currency is the U.S. dollar. Transactions involving monetary assets and liabilities denominated in foreign currencies have been converted into U.S. dollars at the exchange rate in effect on the balance sheet date, and the related revenues and expenses are converted using specific rates for the period, as appropriate. Net foreign currency transaction gains and losses arising from these activities are reported in the consolidated statements of income (loss) in the period in which they arise. Prior to the change in the investment account structure, certain of the Company's investments were denominated in foreign currencies and thus, were subject to the risk associated with foreign currency fluctuations. These investments were translated into U.S. dollar amounts at the date of valuation. Purchases and sales of investments and income and expenses denominated in foreign currencies were translated into U.S. dollar amounts on the respective dates of such transactions. The Company did not isolate the portion of the net investment income (loss) resulting from changes in foreign exchange rates on investments, dividends and interest from the fluctuations arising from changes in fair values of securities and derivatives held within the total net investments managed by Third Point LLC. Periodic payments received or paid on swap agreements were recorded as realized gain or loss on investment transactions. Such fluctuations were included within net investment income (loss) in the consolidated statements of income (loss) .
Income taxes and uncertain tax positions	Income taxes, withholding taxes and uncertain tax positions The Company provides for income taxes for its operations in income tax paying jurisdictions. The Company’s provision relies on estimates and interpretations of currently enacted tax laws. The Company recognizes deferred tax assets and liabilities based on the temporary differences between the financial statement carrying amounts and the tax bases of assets and liabilities. Such temporary differences are primarily due to tax basis discounts on loss and loss adjustment expense reserves and unearned premiums, deferred acquisition costs and unrealized gains (losses) on investments. A valuation allowance against deferred tax assets is recorded if it is more likely than not that all, or some portion, of the benefits related to deferred tax assets will not be realized. Any adjustments to deferred income taxes are accounted for as changes in estimates and are reflected in the consolidated statements of income (loss) in the year in which they are made. Adjustments could be material and could significantly impact earnings in the year they are recorded. Prior to the change in the investment account structure, certain of the Company's investments were subject to withholding tax obligations related to dividends, capital gains and interest on certain investments. These withholding taxes were recorded when they became payable and were included in income tax expense (benefit) in the Company’s consolidated statements of income (loss) . The Company recognized uncertain tax positions related to certain investment transactions in foreign jurisdictions. The Company records its uncertain tax positions based on an estimate of the potential liability, including potential interests and penalties, arising from its investment transactions conducted in foreign countries. The changes in the Company’s uncertain tax position is included in income tax expense (benefit) in the Company’s consolidated statements of income (loss) .
Variable Interest Entities and Noncontrolling Interests in Related Party	Variable interest entities The Company accounts for variable interest entities (“VIEs”) in accordance with FASB ASC Topic 810 Consolidation, which requires the consolidation of all VIEs by the primary beneficiary, that being the investor that has the power to direct the activities of the VIE and that will absorb a portion of the VIE’s expected losses or residual returns that could potentially be significant to the VIE. For VIEs the Company determines it has a variable interest in, it determines whether it is the primary beneficiary of a VIE by performing an analysis that principally considers: (i) the VIE’s purpose and design, including the risks the VIE was designed to create and pass through to its variable interest holders; (ii) the VIE’s capital structure; (iii) the terms between the VIE and its variable interest holders and other parties involved with the VIE; (iv) which variable interest holders have the power to direct the activities of the VIE that most significantly impact the VIE’s economic performance; (v) which variable interest holders have the obligation to absorb losses or the right to receive benefits from the VIE that could potentially be significant to the VIE; and (vi) related party relationships. The Company reassesses its initial determination of whether the Company is the primary beneficiary of a VIE upon changes in facts and circumstances that could potentially alter the Company’s assessment. Noncontrolling interests in related party The Company consolidates the results of entities in which it has a controlling financial interest. Redeemable noncontrolling interests with redemption features that are not solely within the Company’s control are presented as a mezzanine item, between liabilities and shareholders’ equity, in the Company’s consolidated balance sheets and non-redeemable noncontrolling interests are presented as a separate line within shareholders’ equity in the consolidated balance sheets. The Company records the portion of net (income) loss attributable to noncontrolling interests in related party as a separate line within the consolidated statements of income (loss) .
Earnings per share	Earnings (loss) per share Basic earnings (loss) per share is based on the weighted average number of common shares and participating securities outstanding during the period. The weighted average number of common shares excludes any dilutive effect of outstanding warrants, options and unvested restricted shares. Diluted earnings (loss) per share is based on the weighted average number of common shares and participating securities outstanding and includes any dilutive effects of warrants, options and unvested restricted shares under share plans and are determined using the treasury stock method. U.S. GAAP requires that unvested share awards that contain non-forfeitable rights to dividends or dividend equivalents, whether paid or unpaid (referred to as “participating securities”), be treated in the same manner as outstanding shares for earnings per share calculations. The Company treats certain of its unvested restricted shares as participating securities. In the event of a net loss, all participating securities, outstanding warrants, options and restricted shares are excluded from both basic and diluted loss per share since their inclusion would be anti-dilutive.
Leases	Leases Leases in which substantially all of the risks and rewards of ownership are retained by the lessor are classified as operating leases. Payments made under operating leases (net of any incentives received from the lessor) are recognized in the consolidated statements of income (loss) on a straight-line basis over the term of the lease.
Comprehensive income	Comprehensive income The Company has no comprehensive income other than net income disclosed in the consolidated statements of income (loss) .
Segment information	Segment information Under U.S. GAAP, operating segments are based on the internal information that management uses for allocating resources and assessing performance of the Company. The Company manages its business on the basis of one operating segment: Property and Casualty Reinsurance. Non-underwriting income and expenses, presented as a reconciliation to our consolidated results, include: net investment income, certain general and administrative expenses related to corporate activities, interest expense, foreign exchange (gains) losses and income tax (expense) benefit .
Treasury, shares	Treasury shares Common shares repurchased by the Company and not canceled are classified as treasury shares. Treasury shares are recorded at cost, which results in a reduction of shareholders’ equity in the consolidated balance sheets. When shares are reissued from treasury, the Company uses the average cost method to determine the cost of the reissued shares. Gains on sales of treasury shares are credited to additional paid-in capital, while losses are charged to additional paid-in capital to the extent that previous net gains from sales of treasury shares are included therein; otherwise, losses are charged to retained earnings.
Transfers of Financial Assets	Transfer of Financial Assets The Company accounts for transfers of financial assets as sales when it has surrendered control over the related assets. Whether control has been relinquished requires, among other things, an evaluation of relevant legal considerations and an assessment of the nature and extent of the Company’s continuing involvement with the assets transferred. Gains and losses stemming from transfers reported as sales, if any, would be included as realized gains (losses) within net investment income in the accompanying consolidated statements of income. In instances where a transfer of financial assets does not qualify for sale accounting, the accounting guidance requires that the transaction be accounted for as a collateralized borrowing. Accordingly, the related assets remain on the Company’s consolidated balance sheets and continue to be reported and accounted for as if the transfer had not occurred. Cash proceeds from these transfers are reported as liabilities, with attributable interest expense recognized over the life of the related transactions.
Recently issued accounting standards	Recent accounting pronouncements Adoption of New Accounting Standards In February 2016, the FASB issued Accounting Standards Update 2016-02, Leases (Topic 842): Section A - Leases, Section B - Conforming Amendments Related to Leases and Section C - Background Information and Basis for Conclusions (“ASU 2016-02”). ASU 2016-02 intends to improve financial reporting related to leasing transactions. The new standard affects all entities that lease assets such as real estate, airplanes and manufacturing equipment. ASU 2016-02 requires entities that lease assets, referred to as “lessees”, to recognize on the balance sheet the assets and liabilities for the rights and obligations created by those leases. ASU 2016-02 is effective for public business entities for fiscal years beginning after December 15, 2018, and interim periods within those fiscal years. ASU 2016-02 did not have a material effect on the Company’s consolidated financial statements as a result of the limited number of leases the Company currently has in place. In July 2018, the FASB issued Accounting Standards Update 2018-10, Codification Improvements to Topic 842, Leases (“ASU 2018-10”) and Accounting Standards Update 2018-11, Leases (Topic 842): Targeted improvements (ASU 2018-11). These updates make improvements to clarify or to correct unintended application of guidance in ASC 842 and did not have a significant effect on the Company. Recently Issued Accounting Standards Not Yet Adopted In June 2016, the FASB issued Accounting Standards Update 2016-13, Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”). ASU 2016-13 amends the guidance on the impairment of financial instruments. Under the new guidance, an entity recognizes as an allowance its estimate of expected credit losses, which the FASB believes will result in more timely recognition of such losses. ASU 2016-13 is effective for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. The Company has evaluated the impact of this guidance; it is not expected to have a material impact on the Company’s consolidated financial statements. In November 2019, the FASB issued Accounting Standards Update 2019-11, Codification Improvements to Topic 326, Financial Instruments - Credit Losses (“ASU 2019-11”). This update make improvements to clarify or to correct unintended application of guidance in ASC 326. Those changes did not impact the Company. ASU 2019-11 will be effective when the Company adopts ASU 2016-13 in 2020. In August 2018, the FASB issued Accounting Standards Update 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement (“ASU 2018-13”). ASU 2018-13 is intended to improve the effectiveness of fair value measurement disclosure requirements. The amendments are effective for interim and annual periods beginning after December 15, 2019. The Company is currently evaluating the impact of this guidance on the Company’s consolidated financial statements. In October 2018, the FASB issued Accounting Standards Update 2018-17, Consolidation (Topic 810): Targeted Improvements to Related Party Guidance for Variable Interest Entities (“ASU 2018-17”). The amendments in ASU 2018-17 for determining whether a decision-making fee is a variable interest require reporting entities to consider indirect interests held through related parties under common control on a proportional basis rather than as the equivalent of a direct interest in its entirety. ASU 2018-17 is effective for public business entities for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. The Company has evaluated the impact of this guidance; it is not expected to have a material impact on the Company’s consolidated financial statements. In December 2019, the FASB issued Accounting Standards Update 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes (“ASU 2019-12”). The amendments in ASU 2019-12 simplify the accounting for income taxes by removing certain exceptions to the general principles in Topic 740. The amendments also improve consistent application of and simplify U.S. GAAP for other areas of Topic 740 by clarifying and amending existing guidance. ASU 2019-12 is effective for public business entities for fiscal years beginning after December 15, 2020, and interim periods within those fiscal years. This new pronouncement is not expected to have a material impact on the Company’s consolidated financial statements. In January 2020, the FASB issued Accounting Standards Update 2020-01, Investments—Equity Securities (Topic 321), Investments - Equity Method and Joint Ventures (Topic 323), and Derivatives and Hedging (Topic 815) - Clarifying the Interactions between Topic 321, Topic 323, and Topic 815 (a consensus of the Emerging Issues Task Force) (“ASU 2020-01”). The amendments in ASU 2020-01 clarify certain interactions between the guidance to account for certain equity securities under Topic 321, the guidance to account for investments under the equity method of accounting in Topic 323, and the guidance in Topic 815, which could change how an entity accounts for an equity security under the measurement alternative or a forward contract or purchased option to purchase securities that, upon settlement of the forward contract or exercise of the purchased option, would be accounted for under the equity method of accounting or the fair value option in accordance with Topic 825, Financial Instruments. These amendments improve current GAAP by reducing diversity in practice and increasing comparability of the accounting for these interactions. ASU 2020-01 is effective for public business entities for fiscal years beginning after December 15, 2020, and interim periods within those fiscal years. This new pronouncement is not expected to have a material impact on the Company’s consolidated financial statements.

Restricted cash and cash equi_2

Restricted cash and cash equivalents and investments (Tables)	12 Months Ended
	Dec. 31, 2019
Cash and Cash Equivalents [Abstract]
Schedule of restricted cash and cash equivalents	The following table provides a summary of cash and cash equivalents, restricted cash and restricted investments as of December 31, 2019 and 2018 : 2019 2018 Cash and cash equivalents $ 639,415 $ 104,183 Restricted cash securing letter of credit facilities (1) 254,176 203,953 Restricted cash securing reinsurance contracts (2) 760,367 405,201 Total cash, cash equivalents and restricted cash (3) 1,653,958 713,337 Restricted investments securing reinsurance contracts (2) 142,617 239,640 Total cash, cash equivalents, restricted cash and restricted investments $ 1,796,575 $ 952,977 (1) Restricted cash securing letter of credit facilities primarily pertains to letters of credit that have been issued to the Company’s clients in support of our obligations under reinsurance contracts. The Company will not be released from the obligation to provide these letters of credit until the reserves underlying the reinsurance contracts have been settled. The time period for which the Company expects each letter of credit to be in place varies from contract to contract but can last several years. (2) Restricted cash and restricted investments securing reinsurance contracts pertain to trust accounts securing the Company’s contractual obligations under certain reinsurance contracts that the Company will not be released from until the underlying risks have expired or have been settled. Restricted investments include certain investments in debt securities including U.S. Treasury securities, sovereign debt, and limited partnership interests in TP Fund. The time period for which the Company expects these trust accounts to be in place varies from contract to contract, but can last several years. (3) Cash, cash equivalents and restricted cash as reported in the Company’s consolidated statements of cash flows.

Investments (Tables)

Investments (Tables)	12 Months Ended
	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Schedule of Investments Managed by TP LLC	The following is a summary of the net investments managed by Third Point LLC as of December 31, 2019 and 2018 : 2019 2018 Assets TP Fund $ 860,630 $ 1,284,004 Debt securities 125,071 239,640 Total investments 985,701 1,523,644 Cash and cash equivalents 588,196 1,017 Restricted cash and cash equivalents 1,014,543 609,154 Due from brokers — 1,411 Interest and dividends receivable 2,178 1,316 Other assets 18 — Total assets 2,590,636 2,136,542 Liabilities Accounts payable and accrued expenses 509 114 Participation agreement with related party investment fund — 2,297 Total liabilities 509 2,411 Total net investments managed by Third Point LLC $ 2,590,127 $ 2,134,131 The TP Fund investment strategy, as implemented by Third Point LLC, is intended to achieve superior risk-adjusted returns by deploying capital in both long and short investments with favorable risk/reward characteristics across select asset classes, sectors and geographies. Third Point LLC identifies investment opportunities via a bottom-up, value-oriented approach to single security analysis supplemented by a top-down view of portfolio and risk management. Third Point LLC seeks dislocations in certain areas of the capital markets or in the pricing of particular securities and supplements single security analysis with an approach to portfolio construction that includes sizing each investment based on upside/ downside calculations, all with a view towards appropriately positioning and managing overall exposures. On July 31, 2018, Third Point Re, Third Point Re BDA and Third Point Re USA entered into the Amended and Restated Exempted Limited Partnership Agreement (the “2018 LPA”) of TP Fund with Third Point Advisors LLC (“TP GP”) and others, effective August 31, 2018. In accordance with the 2018 LPA, TP GP serves as the general partner of TP Fund. TP GP is beneficially owned by Daniel S. Loeb, a founder of the Company, and certain members of his family. Pursuant to the investment management agreement between Third Point LLC and TP Fund, dated July 31, 2018 as amended and restated on February 28, 2019 (the “TP Fund IMA”), Third Point LLC is the investment manager for TP Fund (the “Investment Manager”). In addition, on July 31, 2018, the TPRE Limited Partners, and TP Fund executed a Subscription Agreement pursuant to which the TPRE Limited Partners transferred certain net investment assets and related liabilities from their separate accounts to TP Fund, and TP Fund issued limited partner interests to the TPRE Limited Partners proportionate to and based on the net asset value transferred by each such entity on the applicable transfer date. Certain collateral assets consisting of debt securities and restricted cash were not transferred to TP Fund but are also managed by Third Point LLC under the Collateral Assets IMA, as defined below. On February 28, 2019, Third Point Re, Third Point Re BDA and Third Point Re USA entered into the Second Amended and Restated Exempted Limited Partnership Agreement of TP Fund (the “Amended LPA”), which amended and restated the 2018 LPA (as amended and restated by the Amended LPA, the “LPA”), with effect from January 1, 2019. The Amended LPA preserves the loss carryforward attributable to the Company’s investment in TP Fund when contributions to TP Fund are made within nine months of certain types of withdrawals from TP Fund. In addition, the Amended LPA revised the management fee from 1.5% per annum to 1.25% per annum effective from January 1, 2019. See Note 9 for additional information. On July 31, 2018, Third Point Re BDA and Third Point Re USA entered into the Collateral Assets Investment Management Agreement (the “2018 Collateral Assets IMA”) with Third Point LLC effective August 31, 2018, pursuant to which Third Point LLC serves as investment manager of certain collateral assets not transferred to TP Fund (the “Collateral Assets”). The 2018 Collateral Assets IMA will continue in effect for so long as either Third Point Re BDA or Third Point Re USA remains a limited partner of TP Fund. The collateral assets are presented in the consolidated balance sheets within debt securities and restricted cash and are considered as part of total net investments managed by Third Point LLC. On May 24, 2019, Third Point Re BDA and Third Point Re USA entered into the Amended and Restated Collateral Assets Investment Management Agreement (the “Amended Collateral Assets IMA” and together with the 2018 Collateral Assets IMA, the “Collateral Assets IMA”) with Third Point LLC, effective May 24, 2019, pursuant to which, in addition to serving as the investment manager for the Company’s collateral assets, Third Point LLC will serve as investment manager of certain investment assets withdrawn from TP Fund. The Amended Collateral Assets IMA will continue in effect thereafter so long as either Third Point Re BDA or Third Point Re USA remains a limited partner of TP Fund. The Company entered into the Amended Collateral Assets IMA to provide for Third Point LLC's management of a substantial portion of the Company’s assets that were reallocated from TP Fund into cash, U.S. Treasuries and other fixed income investments. There are no management or performance fees under the Collateral Assets IMA.
Schedule of investments, categorized by the level of the fair value hierarchy	The following tables present the Company’s investments, categorized by the level of the fair value hierarchy as of December 31, 2019 and 2018 : December 31, 2019 Quoted prices in active markets Significant other observable inputs Significant unobservable inputs Total (Level 1) (Level 2) (Level 3) Assets Private common equity securities $ — $ — $ 1,000 $ 1,000 Private preferred equity securities — — 3,000 3,000 Total equities — — 4,000 4,000 U.S. Treasury securities — 101,186 — 101,186 Sovereign debt — 23,885 — 23,885 Total debt securities — 125,071 — 125,071 $ — $ 125,071 $ 4,000 129,071 Investments in funds valued at NAV 860,630 Total assets $ 989,701 Liabilities Derivative liabilities (embedded) $ — $ — $ 31 $ 31 Total liabilities $ — $ — $ 31 $ 31 December 31, 2018 Quoted prices in active markets Significant other observable inputs Significant unobservable inputs Total (Level 1) (Level 2) (Level 3) Assets U.S. Treasury securities $ — $ 197,312 $ — $ 197,312 Sovereign debt — 42,328 — 42,328 Total debt securities $ — $ 239,640 $ — 239,640 Investments in funds valued at NAV 1,284,088 Total assets $ 1,523,728 Liabilities Derivative liabilities (embedded) $ — $ — $ 22 $ 22 Total liabilities $ — $ — $ 22 $ 22
Schedule of reconciliation of the balances for all investments measured at fair value using significant unobservable inputs	The following table presents the reconciliation of all investments measured at fair value using Level 3 inputs for the years ended December 31, 2019 and 2018 : January 1, Transfers in to (out of) Level 3 Purchases Sales Realized and Unrealized Gains(Losses) (2) December 31, Assets Private common equity securities $ — $ — $ 1,000 $ — $ — $ 1,000 Private preferred equity securities — — 3,000 — — 3,000 Total assets $ — $ — $ 4,000 $ — $ — $ 4,000 Liabilities Derivative liabilities (embedded) $ (22 ) $ — $ — $ — $ (9 ) $ (31 ) Total liabilities $ (22 ) $ — $ — $ — $ (9 ) $ (31 ) January 1, Transfers in to (out of) Level 3 Purchases Sales (1) Realized and Unrealized Gains(Losses) (2) December 31, Assets Private common equity securities $ 4,794 $ — $ 567 $ (4,726 ) $ (635 ) $ — Private preferred equity securities 57,126 — 38,376 (91,065 ) (4,437 ) — Asset-backed securities 27,308 — 35,905 (60,906 ) (2,307 ) — Corporate bonds 9,868 — 1,372 (11,763 ) 523 — Other debt securities 713 — — (913 ) 200 — Rights and warrants 435 — 753 (1,380 ) 192 — Real estate 6,831 — — (6,817 ) (14 ) — Total assets $ 107,075 $ — $ 76,973 $ (177,570 ) $ (6,478 ) $ — Liabilities Derivative liabilities (free standing) $ (2,085 ) $ — $ — $ 1,797 $ 288 $ — Derivative liabilities (embedded) (171 ) — — — 149 (22 ) Total liabilities $ (2,256 ) $ — $ — $ 1,797 $ 437 $ (22 ) (1) Sales of investments measured at fair value using Level 3 inputs in the year ended December 31, 2018 include the impact of the change in investment account structure as described in Note 4 . (2) Total change in realized and unrealized gains (losses) recorded on Level 3 financial instruments is included in net investment income (loss) in the consolidated statements of income (loss) . Realized and unrealized gains (losses) related to embedded derivatives are included in other expenses in the consolidated statements of income (loss) .

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Schedule of reconciliation of the balances for all investments measured at fair value using significant unobservable inputs	The following table presents the reconciliation of all investments measured at fair value using Level 3 inputs for the years ended December 31, 2019 and 2018 : January 1, Transfers in to (out of) Level 3 Purchases Sales Realized and Unrealized Gains(Losses) (2) December 31, Assets Private common equity securities $ — $ — $ 1,000 $ — $ — $ 1,000 Private preferred equity securities — — 3,000 — — 3,000 Total assets $ — $ — $ 4,000 $ — $ — $ 4,000 Liabilities Derivative liabilities (embedded) $ (22 ) $ — $ — $ — $ (9 ) $ (31 ) Total liabilities $ (22 ) $ — $ — $ — $ (9 ) $ (31 ) January 1, Transfers in to (out of) Level 3 Purchases Sales (1) Realized and Unrealized Gains(Losses) (2) December 31, Assets Private common equity securities $ 4,794 $ — $ 567 $ (4,726 ) $ (635 ) $ — Private preferred equity securities 57,126 — 38,376 (91,065 ) (4,437 ) — Asset-backed securities 27,308 — 35,905 (60,906 ) (2,307 ) — Corporate bonds 9,868 — 1,372 (11,763 ) 523 — Other debt securities 713 — — (913 ) 200 — Rights and warrants 435 — 753 (1,380 ) 192 — Real estate 6,831 — — (6,817 ) (14 ) — Total assets $ 107,075 $ — $ 76,973 $ (177,570 ) $ (6,478 ) $ — Liabilities Derivative liabilities (free standing) $ (2,085 ) $ — $ — $ 1,797 $ 288 $ — Derivative liabilities (embedded) (171 ) — — — 149 (22 ) Total liabilities $ (2,256 ) $ — $ — $ 1,797 $ 437 $ (22 ) (1) Sales of investments measured at fair value using Level 3 inputs in the year ended December 31, 2018 include the impact of the change in investment account structure as described in Note 4 . (2) Total change in realized and unrealized gains (losses) recorded on Level 3 financial instruments is included in net investment income (loss) in the consolidated statements of income (loss) . Realized and unrealized gains (losses) related to embedded derivatives are included in other expenses in the consolidated statements of income (loss) .
Schedule of investments, categorized by the level of the fair value hierarchy	The following tables present the Company’s investments, categorized by the level of the fair value hierarchy as of December 31, 2019 and 2018 : December 31, 2019 Quoted prices in active markets Significant other observable inputs Significant unobservable inputs Total (Level 1) (Level 2) (Level 3) Assets Private common equity securities $ — $ — $ 1,000 $ 1,000 Private preferred equity securities — — 3,000 3,000 Total equities — — 4,000 4,000 U.S. Treasury securities — 101,186 — 101,186 Sovereign debt — 23,885 — 23,885 Total debt securities — 125,071 — 125,071 $ — $ 125,071 $ 4,000 129,071 Investments in funds valued at NAV 860,630 Total assets $ 989,701 Liabilities Derivative liabilities (embedded) $ — $ — $ 31 $ 31 Total liabilities $ — $ — $ 31 $ 31 December 31, 2018 Quoted prices in active markets Significant other observable inputs Significant unobservable inputs Total (Level 1) (Level 2) (Level 3) Assets U.S. Treasury securities $ — $ 197,312 $ — $ 197,312 Sovereign debt — 42,328 — 42,328 Total debt securities $ — $ 239,640 $ — 239,640 Investments in funds valued at NAV 1,284,088 Total assets $ 1,523,728 Liabilities Derivative liabilities (embedded) $ — $ — $ 22 $ 22 Total liabilities $ — $ — $ 22 $ 22

Derivatives (Tables)

Derivatives (Tables)	12 Months Ended
	Dec. 31, 2019
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of listing currency, fair value and notional amounts of derivative instruments	The following table identifies the fair value and notional amounts of embedded derivative instruments in reinsurance contracts included in the consolidated balance sheets as of December 31, 2019 and 2018 : 2019 2018 Derivative Liabilities by Primary Underlying Risk Fair Value Notional Amounts (1) Fair Value Notional Amounts (1) Embedded derivative liabilities in reinsurance contracts (2) $ 31 $ 20,000 $ 22 $ 20,000 Total Derivative Liabilities (embedded) $ 31 $ 20,000 $ 22 $ 20,000 (1) The absolute notional exposure represents the Company’s derivative activity as of December 31, 2019 and 2018 , which is representative of the volume of derivatives held during the period. (2) The fair value of embedded derivatives in reinsurance contracts is included in reinsurance balances payable in the consolidated balance sheets.
Schedule of realized and unrealized gains (losses) relating to trading activities	The following table sets forth, by major risk type, the Company’s realized and unrealized gains (losses) relating to derivatives for the years ended December 31, 2019 , 2018 and 2017 . Realized and unrealized gains (losses) for the year ended December 31, 2018 includes activity in the separate accounts up to the date of change in the investment account structure. Realized and unrealized gains (losses) related to free standing derivatives were included in net investment income (loss) in the consolidated statements of income (loss) . Realized and unrealized gains (losses) related to embedded derivatives are included in other expenses in the consolidated statements of income (loss) . 2019 2018 2017 Free standing Derivatives - Primary Underlying Risk Realized Gain (Loss) Unrealized Gain (Loss)* Realized Gain (Loss) Unrealized Gain (Loss)* Realized Gain (Loss) Unrealized Gain (Loss)* Credit Credit Default Swaps - Protection Purchased $ — $ — $ (3,557 ) $ 921 $ (3,462 ) $ (978 ) Credit Default Swaps - Protection Sold — — (333 ) 744 605 (720 ) Total Return Swaps - Long Contracts — — 3,486 (2,000 ) 72 2,000 Equity Price Contracts for Differences - Long Contracts — — 32,460 (15,098 ) 58,047 13,334 Contracts for Differences - Short Contracts — — 4,568 (3,608 ) 2,608 4,715 Total Return Swaps - Long Contracts — — 16,792 (15,864 ) 16,863 16,923 Total Return Swaps - Short Contracts — — (17,329 ) 1,883 (15,892 ) (765 ) Interest Rates Interest Rate Swaps — — — — (3,104 ) (1,740 ) Interest Rate Swaptions — — (1,819 ) 1,228 (354 ) (2,056 ) Sovereign Future Options - Long Contracts — — 403 — — — Sovereign Future Options - Short Contracts — — 50 — — — Sovereign Futures - Long Contracts — — 639 — — — Sovereign Futures - Short Contracts — — (1,166 ) — (7,798 ) 647 Total Return Swaps - Long Contracts — — (7,569 ) — — — Foreign Currency Exchange Rates Foreign Currency Forward Contracts — — (2,849 ) 4,403 (10,470 ) (3,048 ) Foreign Currency Future Options - Purchased — — (108 ) — — — Foreign Currency Options - Purchased — — 5,138 — (6,716 ) 1,164 Foreign Currency Options - Sold — — (771 ) — 2,183 (80 ) $ — $ — $ 28,035 $ (27,391 ) $ 32,582 $ 29,396 Embedded Derivatives Embedded derivatives in reinsurance contracts $ — $ (9 ) $ — $ 149 $ — $ (79 ) Total Derivative Liabilities (embedded) $ — $ (9 ) $ — $ 149 $ — $ (79 ) *Unrealized gain (loss) relates to derivatives still held at reporting date.

Loss and loss adjustment expe_2

Loss and loss adjustment expense reserves (Tables)	12 Months Ended
	Dec. 31, 2019
Loss and Loss Adjustment Expense Reserves [Abstract]
Schedule of loss and loss adjustment expense reserves	As of December 31, 2019 and 2018 , loss and loss adjustment expense reserves in the consolidated balance sheets was comprised of the following: 2019 2018 Case loss and loss adjustment expense reserves $ 148,166 $ 125,456 Incurred but not reported loss and loss adjustment expense reserves 963,359 811,280 Deferred gains on retroactive reinsurance contracts 167 421 $ 1,111,692 $ 937,157
Schedule of activity in the reserve for losses and loss adjustment expenses	The following table represents the activity in the loss and loss adjustment expense reserves for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Gross reserves for loss and loss adjustment expenses, beginning of year $ 937,157 $ 720,570 $ 605,129 Less: loss and loss adjustment expenses recoverable, beginning of year (2,031 ) (1,113 ) (1 ) Less: deferred charges on retroactive reinsurance contracts (3,847 ) — — Net reserves for loss and loss adjustment expenses, beginning of year 931,279 719,457 605,128 Increase (decrease) in net loss and loss adjustment expenses incurred in respect of losses occurring in: Current year 489,994 434,276 422,801 Prior years (86,495 ) 4,138 (52,743 ) Total incurred loss and loss adjustment expenses 403,499 438,414 370,058 Net loss and loss adjustment expenses paid in respect of losses occurring in: Current year (63,638 ) (85,173 ) (110,799 ) Prior years (188,392 ) (132,336 ) (162,447 ) Total net paid losses (252,030 ) (217,509 ) (273,246 ) Foreign currency translation 16,686 (9,083 ) 17,517 Net reserves for loss and loss adjustment expenses, end of year 1,099,434 931,279 719,457 Plus: loss and loss adjustment expenses recoverable, end of year 5,520 2,031 1,113 Plus: deferred charges on retroactive reinsurance contracts 6,738 3,847 — Gross reserves for loss and loss adjustment expenses, end of year $ 1,111,692 $ 937,157 $ 720,570
Schedule of total loss and loss adjustment expenses incurred, net and net loss and loss adjustment expenses paid by accident years	The following tables provide a breakdown of the Company’s loss and loss adjustment expenses incurred, net and net loss and loss adjustment expenses paid by accident year by line of business for the Company’s prospective reinsurance contracts for the year ended December 31, 2019 . The information related to loss and loss adjustment expenses incurred, net and net loss and loss adjustment expenses paid for the years ended December 31, 2012 through 2018 is presented as supplementary information and is unaudited: Property Catastrophe Loss and loss adjustment expenses incurred, net Accident year 2012 2013 2014 2015 2016 2017 2018 2019 IBNR loss and LAE reserves, net <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ — $ — $ — $ — $ — $ — $ — $ — $ — 2013 — — — — — — — — — 2014 — — — — — — — — — 2015 — — — — — — — — — 2016 — — — — — — — — — 2017 — — — — — — — — — 2018 — — — — — — — — — 2019 — — — — — — — 39,251 38,529 Total $ 39,251 $ 38,529 Cumulative net losses and loss adjustment expenses paid Accident year 2012 2013 2014 2015 2016 2017 2018 2019 <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ — $ — $ — $ — $ — $ — $ — $ — 2013 — — — — — — — — 2014 — — — — — — — — 2015 — — — — — — — — 2016 — — — — — — — — 2017 — — — — — — — — 2018 — — — — — — — — 2019 — — — — — — — 470 Total $ 470 Property Catastrophe - net reserves for loss and loss adjustment expenses, end of year $ 38,781 Other Property Loss and loss adjustment expenses incurred, net Accident year 2012 2013 2014 2015 2016 2017 2018 2019 IBNR loss and LAE reserves, net <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ 10,917 $ 8,672 $ 9,375 $ 9,353 $ 9,416 $ 9,472 $ 9,501 $ 9,490 $ — 2013 — 27,765 24,980 25,766 25,882 25,785 26,170 26,051 7 2014 — — 40,256 40,920 41,336 44,627 46,500 46,303 725 2015 — — — 50,330 52,533 54,635 56,313 56,201 1,533 2016 — — — — 45,415 43,038 43,799 43,733 2,906 2017 — — — — — 41,237 41,833 41,753 3,120 2018 — — — — — — 54,084 52,343 14,267 2019 — — — — — — — 53,590 26,305 Total $ 329,464 $ 48,863 Cumulative net losses and loss adjustment expenses paid Accident year 2012 2013 2014 2015 2016 2017 2018 2019 <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ 4,656 $ 8,381 $ 9,075 $ 9,186 $ 9,352 $ 9,400 $ 9,482 $ 9,483 2013 — 14,635 22,229 24,023 25,167 25,406 25,815 25,993 2014 — — 19,420 34,381 38,448 42,775 44,533 45,312 2015 — — — 22,706 43,382 48,360 51,783 53,924 2016 — — — — 21,593 31,871 37,044 39,651 2017 — — — — — 24,713 33,436 37,171 2018 — — — — — — 26,458 35,169 2019 — — — — — — — 22,624 Total $ 269,327 Other Property - net reserves for loss and loss adjustment expenses, end of year $ 60,137 Workers’ Compensation Loss and loss adjustment expenses incurred, net Accident year 2012 2013 2014 2015 2016 2017 2018 2019 IBNR loss and LAE reserves, net <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ 4,037 $ 4,534 $ 5,066 $ 5,596 $ 5,715 $ 5,720 $ 5,874 $ 5,938 $ 6 2013 — 27,449 28,616 33,365 33,449 33,252 33,067 32,741 286 2014 — — 40,247 46,568 47,200 43,470 42,037 41,115 1,699 2015 — — — 35,749 37,138 34,800 32,529 31,116 2,723 2016 — — — — 40,433 39,205 36,475 31,047 4,159 2017 — — — — — 41,075 40,459 34,453 9,205 2018 — — — — — — 27,753 25,050 10,630 2019 — — — — — — — 26,889 18,758 Total $ 228,349 $ 47,466 Cumulative net losses and loss adjustment expenses paid Accident year 2012 2013 2014 2015 2016 2017 2018 2019 <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ 93 $ 624 $ 3,017 $ 4,280 $ 4,969 $ 4,796 $ 5,110 $ 5,347 2013 — 2,587 9,142 16,840 22,826 26,956 29,082 30,377 2014 — — 4,073 15,947 24,280 29,573 34,112 36,262 2015 — — — 2,669 10,755 17,001 22,432 24,942 2016 — — — — 3,985 13,236 18,346 21,754 2017 — — — — — 4,586 11,868 16,908 2018 — — — — — — 2,552 7,089 2019 — — — — — — — 2,639 Total $ 145,318 Workers’ Compensation - net reserves for loss and loss adjustment expenses, end of year $ 83,031 Auto Loss and loss adjustment expenses incurred, net Accident year 2012 2013 2014 2015 2016 2017 2018 2019 IBNR loss and LAE reserves, net <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ 13,247 $ 12,264 $ 11,777 $ 11,534 $ 11,433 $ 11,333 $ 11,356 $ 11,349 $ — 2013 — 20,830 19,990 19,472 19,338 19,483 19,534 19,489 7 2014 — — 104,896 103,473 103,568 103,661 103,822 103,623 53 2015 — — — 82,677 88,705 89,550 89,459 89,241 119 2016 — — — — 77,785 85,903 86,434 86,511 343 2017 — — — — — 48,682 50,793 50,698 809 2018 — — — — — — 45,145 43,039 1,602 2019 — — — — — — — 29,051 11,593 Total $ 433,001 $ 14,526 Cumulative net losses and loss adjustment expenses paid Accident year 2012 2013 2014 2015 2016 2017 2018 2019 <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ 5,619 $ 9,989 $ 11,387 $ 11,450 $ 11,382 $ 11,318 $ 11,348 $ 11,349 2013 — 8,673 17,244 18,686 19,066 19,363 19,463 19,479 2014 — — 45,766 97,651 101,626 102,868 103,379 103,515 2015 — — — 42,451 80,765 86,100 88,168 88,630 2016 — — — — 38,059 77,511 82,556 85,027 2017 — — — — — 23,546 45,196 48,665 2018 — — — — — — 21,182 38,918 2019 — — — — — — — 10,951 Total $ 406,534 Auto - net reserves for loss and loss adjustment expenses, end of year $ 26,467 Other Casualty Loss and loss adjustment expenses incurred, net Accident year 2012 2013 2014 2015 2016 2017 2018 2019 IBNR loss and LAE reserves, net <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ — $ — $ — $ — $ — $ — $ — $ — $ — 2013 — — — — — — — — — 2014 — — 5,480 7,519 7,316 4,903 5,584 5,849 1,302 2015 — — — 45,558 48,315 33,396 37,113 38,970 10,435 2016 — — — — 63,082 52,118 54,990 56,774 23,647 2017 — — — — — 70,158 71,091 75,334 48,072 2018 — — — — — — 120,553 124,859 99,737 2019 — — — — — — — 95,975 87,236 Total $ 397,761 $ 270,429 Cumulative net losses and loss adjustment expenses paid Accident year 2012 2013 2014 2015 2016 2017 2018 2019 <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ — $ — $ — $ — $ — $ — $ — $ — 2013 — — — — — — — — 2014 — — 16 340 1,390 2,226 3,104 3,685 2015 — — — 310 3,612 9,053 15,781 20,550 2016 — — — — 621 6,165 13,467 20,783 2017 — — — — — 1,418 6,231 12,798 2018 — — — — — — 1,674 9,968 2019 — — — — — — — 3,626 Total $ 71,410 Other Casualty - net reserves for loss and loss adjustment expenses, end of year $ 326,351 Credit & Financial Lines Loss and loss adjustment expenses incurred, net Accident year 2012 2013 2014 2015 2016 2017 2018 2019 IBNR loss and LAE reserves, net <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ — $ — $ — $ — $ — $ — $ — $ — $ — 2013 — 364 408 113 107 99 77 80 2 2014 — — 5,774 2,643 2,416 2,203 1,384 1,454 95 2015 — — — 5,234 5,032 4,752 4,007 3,127 517 2016 — — — — 10,726 10,721 10,816 6,560 1,751 2017 — — — — — 13,740 13,773 7,313 3,364 2018 — — — — — — 17,715 10,940 6,482 2019 — — — — — — — 17,990 14,341 Total $ 47,464 $ 26,552 Cumulative net losses and loss adjustment expenses paid Accident year 2012 2013 2014 2015 2016 2017 2018 2019 <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ — $ — $ — $ — $ — $ — $ — $ — 2013 — — 11 66 74 78 77 77 2014 — — 42 784 1,038 1,318 1,322 1,344 2015 — — — 402 1,128 2,045 2,328 2,503 2016 — — — — 1,013 2,326 3,419 4,196 2017 — — — — — 1,100 2,332 3,031 2018 — — — — — — 897 2,717 2019 — — — — — — — 1,900 Total $ 15,768 Credit & Financial Lines - net reserves for loss and loss adjustment expenses, end of year $ 31,696 Multi-line Loss and loss adjustment expenses incurred, net Accident year 2012 2013 2014 2015 2016 2017 2018 2019 IBNR loss and LAE reserves, net <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ — $ — $ — $ — $ — $ — $ — $ — $ — 2013 — 9 4,272 4,564 4,564 4,564 4,564 4,564 — 2014 — — 47,493 35,651 40,095 35,747 37,547 37,759 16,870 2015 — — — 86,003 108,581 106,957 107,292 116,499 37,445 2016 — — — — 119,902 120,774 116,702 124,262 35,944 2017 — — — — — 100,304 107,485 110,994 30,137 2018 — — — — — — 90,463 101,510 43,334 2019 — — — — — — — 129,248 105,338 Total $ 624,836 $ 269,068 Cumulative net losses and loss adjustment expenses paid Accident year 2012 2013 2014 2015 2016 2017 2018 2019 <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ — $ — $ — $ — $ — $ — $ — $ — 2013 — — 1,243 4,563 4,563 4,563 4,563 4,563 2014 — — 1,179 14,242 20,782 18,803 20,536 20,822 2015 — — — 30,620 65,309 73,844 76,564 78,443 2016 — — — — 30,640 76,034 84,047 87,192 2017 — — — — — 53,789 74,191 79,660 2018 — — — — — — 30,497 48,060 2019 — — — — — — — 19,328 Total $ 338,068 Multi-line - net reserves for loss and loss adjustment expenses, end of year $ 286,768 Other Specialty Loss and loss adjustment expenses incurred, net Accident year 2012 2013 2014 2015 2016 2017 2018 2019 IBNR loss and LAE reserves, net <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ 52,105 $ 49,942 $ 50,055 $ 50,055 $ 50,065 $ 50,104 $ 50,104 $ 50,104 $ — 2013 — 25,582 24,274 23,450 23,138 23,135 23,138 23,125 — 2014 — — — — — — — — — 2015 — — — — — — — — — 2016 — — — — — — 812 730 691 2017 — — — — — 4,033 3,544 4,025 447 2018 — — — — — — 6,213 6,866 2,573 2019 — — — — — — — 9,048 7,358 Total $ 93,898 $ 11,069 Cumulative net losses and loss adjustment expenses paid Accident year 2012 2013 2014 2015 2016 2017 2018 2019 <----------------------------------------------- Unaudited -----------------------------------------------> 2012 $ 2,666 $ 48,455 $ 50,024 $ 50,025 $ 50,067 $ 50,103 $ 50,103 $ 50,103 2013 — — 22,232 23,138 23,134 23,135 23,137 23,127 2014 — — — — — — — — 2015 — — — — — — — — 2016 — — — — — — — — 2017 — — — — — 4 261 575 2018 — — — — — — 957 2,109 2019 — — — — — — — 1,640 Total $ 77,554 Other Specialty - net reserves for loss and loss adjustment expenses, end of year $ 16,344 Property and Casualty Reinsurance - Retroactive Reinsurance Contracts The Company writes reinsurance contracts that provide limited protection against adverse development on loss originating from multiple accident years. The Company has other retroactive exposure within contracts that provide primarily prospective coverage. These contracts are included in the prospective reinsurance tables above. These contracts are typically part of prospective reinsurance contracts with a small portion of retroactive exposure resulting from the delay between the dates when the relevant contract was bound and the dates on which each incepted. The information below includes loss and loss adjustment expenses incurred, net and loss and loss adjustment expenses paid, net, by accident year for the Company's retroactive reinsurance contracts presented by year of inception of the retroactive reinsurance contracts. The Company's estimate for loss and loss adjustment expenses incurred, net, at inception of all retroactive reinsurance contracts entered into to date was the same when the contract incepted and at the relevant year end position. As a result, there was no development in the year of inception for any of the Company's retroactive reinsurance contracts written to date. In addition, there were no loss and loss adjustment expenses paid, net, at inception of the Company's retroactive reinsurance contracts. The information related to loss and loss adjustment expenses incurred, net and net loss and loss adjustment expenses paid for the years ended December 31, 2012 through 2018 is presented as supplementary information and is unaudited. Retroactive contracts incepting in the year ended December 31, 2012 The Company did not enter into any retroactive reinsurance contracts during the year ended December 31, 2012. Retroactive contracts incepting in the year ended December 31, 2013 Loss and loss adjustment expenses incurred, net Accident year 2013 2014 2015 2016 2017 2018 2019 IBNR loss and LAE reserves, net <---------------------------------------- Unaudited ----------------------------------------> 2010 $ 914 $ 704 $ 704 $ 704 $ 704 $ 704 $ 704 $ — 2011 5,419 4,173 4,173 4,173 4,173 4,173 4,173 — 2012 10,197 7,853 7,853 7,853 7,853 7,853 7,853 — 2013 4,908 3,779 3,779 3,779 3,779 3,779 3,779 — 2014 — — — — — — — — 2015 — — — — — — — — 2016 — — — — — — — — 2017 — — — — — — — — 2018 — — — — — — — — 2019 — — — — — — — — Total $ 16,509 $ — Cumulative net loss and loss adjustment expenses paid Accident year 2013 2014 2015 2016 2017 2018 2019 <---------------------------------------- Unaudited ----------------------------------------> 2010 $ — $ 279 $ 704 $ 704 $ 704 $ 704 $ 704 2011 — 1,654 4,173 4,173 4,173 4,173 4,173 2012 — 3,113 7,853 7,853 7,853 7,853 7,853 2013 — 1,498 3,779 3,779 3,779 3,779 3,779 2014 — — — — — — — 2015 — — — — — — — 2016 — — — — — — — 2017 — — — — — — — 2018 — — — — — — — 2019 — — — — — — — Total $ 16,509 Net reserves for loss and loss adjustment expenses from 2010 to 2019 — Net reserves for loss and loss adjustment expenses prior to 2010 9,524 Retroactive contracts incepting in the year ended December 31, 2013 - net reserves for loss and loss adjustment expenses, end of year $ 9,524 Retroactive contracts incepting in the year ended December 31, 2014 Loss and loss adjustment expenses incurred, net Accident year 2014 2015 2016 2017 2018 2019 IBNR loss and LAE reserves, net <------------------------------ Unaudited ------------------------------> 2010 $ 444 $ — $ — $ — $ — $ — $ — 2011 4,239 3,455 3,057 3,252 2,884 1,529 1,529 2012 12,173 10,794 9,553 10,162 9,011 4,778 4,778 2013 18,907 16,929 14,982 15,938 14,132 7,493 7,493 2014 10,700 9,590 8,487 9,028 8,005 4,245 4,245 2015 — — — — — — — 2016 — — — — — — — 2017 — — — — — — — 2018 — — — — — — — 2019 — — — — — — — Total $ 18,045 $ 18,045 Cumulative net loss and loss adjustment expenses paid Accident year 2014 2015 2016 2017 2018 2019 <------------------------------ Unaudited ------------------------------> 2010 $ — $ — $ — $ — $ — $ — 2011 — — — — — — 2012 — — — — — — 2013 — — — — — — 2014 — — — — — — 2015 — — — — — — 2016 — — — — — — 2017 — — — — — — 2018 — — — — — — 2019 — — — — — — Total $ — Net reserves for loss and loss adjustment expenses from 2010 to 2019 18,045 Net reserves for loss and loss adjustment expenses prior to 2010 — Retroactive contracts incepting in the year ended December 31, 2014 - net reserves for loss and loss adjustment expenses, end of year $ 18,045 Retroactive contracts incepting in the year ended December 31, 2015 Loss and loss adjustment expenses incurred, net Accident year 2015 2016 2017 2018 2019 IBNR loss and LAE reserves, net <------------------- Unaudited -------------------> 2010 $ 5,324 $ 5,324 $ 3,932 $ 3,561 $ 2,225 $ 2,225 2011 10,165 10,165 7,703 7,318 4,509 4,509 2012 14,952 14,952 11,470 11,132 6,817 6,817 2013 18,435 18,435 14,162 13,779 8,432 8,432 2014 40,654 40,654 31,500 31,098 18,953 18,953 2015 2,596 2,596 1,788 1,395 913 913 2016 — — — — — — 2017 — — — — — — 2018 — — — — — — 2019 — — — — — — Total $ 41,849 $ 41,849 Cumulative net loss and loss adjustment expenses paid Accident year 2015 2016 2017 2018 2019 <------------------- Unaudited -------------------> 2010 $ — $ — $ — $ — $ — 2011 — — — — — 2012 — — — — — 2013 — — — — — 2014 — — — — — 2015 — — — — — 2016 — — — — — 2017 — — — — — 2018 — — — — — 2019 — — — — — Total $ — Net reserves for loss and loss adjustment expenses from 2010 to 2019 41,849 Net reserves for loss and loss adjustment expenses prior to 2010 1,757 Retroactive contracts incepting in the year ended December 31, 2015 - net reserves for loss and loss adjustment expenses, end of year $ 43,606 Retroactive contracts incepting in the year ended December 31, 2016 The Company did not enter into any retroactive reinsurance contracts during the year ended December 31, 2016. Retroactive contracts incepting in the year ended December 31, 2017 Loss and loss adjustment expenses incurred, net Accident year 2017 2018 2019 IBNR loss and LAE reserves, net <--- Unaudited ---> 2010 $ 442 $ 371 $ 237 $ 237 2011 1,648 1,567 966 966 2012 2,185 2,110 1,295 1,295 2013 3,358 3,264 2,000 2,000 2014 9,582 9,453 5,768 5,768 2015 12,597 12,398 7,570 7,570 2016 23,854 23,617 14,397 14,397 2017 48,877 48,888 29,719 29,719 2018 — — — — 2019 — — — — Total $ 61,952 $ 61,952 Cumulative net loss and loss adjustment expenses paid Accident year 2017 2018 2019 <--- Unaudited ---> 2010 $ — $ — $ — 2011 — — — 2012 — — — 2013 — — — 2014 — — — 2015 — — — 2016 — — — 2017 — — — 2018 — — — 2019 — — — Total $ — Net reserves for loss and loss adjustment expenses from 2010 to 2019 61,952 Net reserves for loss and loss adjustment expenses prior to 2010 256 Retroactive contracts incepting in the year ended December 31, 2017 - net reserves for loss and loss adjustment expenses, end of year $ 62,208 Retroactive contracts incepting in the year ended December 31, 2018 Loss and loss adjustment expenses incurred, net Accident year 2018 2019 IBNR loss and LAE reserves, net Unaudited 2010 $ 221 $ 147 $ 140 2011 200 131 128 2012 442 367 103 2013 2,230 2,007 148 2014 5,809 5,288 241 2015 12,754 11,692 331 2016 19,431 17,871 364 2017 17,257 15,889 279 2018 14,880 13,759 101 2019 — — — Total $ 67,151 $ 1,835 Cumulative net loss and loss adjustment expenses paid Accident year 2018 2019 Unaudited 2010 $ — $ 7 2011 — 3 2012 — 264 2013 — 1,859 2014 — 5,047 2015 — 11,361 2016 — 17,507 2017 — 15,610 2018 — 13,658 2019 — — Total $ 65,316 Net reserves for loss and loss adjustment expenses from 2010 to 2019 1,835 Net reserves for loss and loss adjustment expenses prior to 2010 208 Retroactive contracts incepting in the year ended December 31, 2018 - net reserves for loss and loss adjustment expenses, end of year $ 2,043 Retroactive contracts incepting in the year ended December 31, 2019 Loss and loss adjustment expenses incurred, net Accident year 2019 IBNR loss and LAE reserves, net 2010 $ 945 $ 945 2011 2,064 2,064 2012 1,211 1,211 2013 1,983 1,983 2014 4,328 4,328 2015 6,197 6,197 2016 10,858 10,858 2017 12,908 12,908 2018 16,769 16,769 2019 35,527 35,527 Total $ 92,790 $ 92,790 Cumulative net loss and loss adjustment expenses paid Accident year 2019 2010 $ — 2011 — 2012 — 2013 — 2014 — 2015 — 2016 — 2017 — 2018 — 2019 — Total $ — Net reserves for loss and loss adjustment expenses from 2010 to 2019 92,790 Net reserves for loss and loss adjustment expenses prior to 2010 1,643 Retroactive contracts incepting in the year ended December 31, 2019 - net reserves for loss and loss adjustment expenses, end of year $ 94,433
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Table Text Block]	The following table provides a reconciliation of the Company's loss and loss expense reserves as of December 31, 2019 : 2019 Prospective reinsurance contracts Property Catastrophe $ 38,781 Other Property 60,137 Workers’ Compensation 83,031 Auto 26,467 Other Casualty 326,351 Credit & Financial Lines 31,696 Multi-line 286,768 Other Specialty 16,344 Retroactive reinsurance contracts Retroactive contracts incepting in the year ended December 31, 2012 — Retroactive contracts incepting in the year ended December 31, 2013 9,524 Retroactive contracts incepting in the year ended December 31, 2014 18,045 Retroactive contracts incepting in the year ended December 31, 2015 43,606 Retroactive contracts incepting in the year ended December 31, 2016 — Retroactive contracts incepting in the year ended December 31, 2017 62,208 Retroactive contracts incepting in the year ended December 31, 2018 2,043 Retroactive contracts incepting in the year ended December 31, 2019 94,433 Net reserves for loss and loss adjustment expenses, end of year 1,099,434 Loss and loss adjustment expenses recoverable Property 5,520 Deferred charges on retroactive reinsurance contracts 6,738 Gross reserves for loss and loss adjustment expenses, end of year $ 1,111,692
Schedule of percentage annual payout on losses	The following table is presented as supplementary information and presents the Company’s historical average annual percentage payout of loss and loss adjustment expenses incurred, net by age, as of December 31, 2019 : Year 1 Year 2 Year 3 Year 4 Year 5 Year 6 Year 7 Year 8 (Unaudited) Prospective reinsurance contracts Property Catastrophe 1.2 % — % — % — % — % — % — % — % Other Property 48.6 % 28.4 % 8.8 % 5.4 % 2.6 % 1.3 % 0.8 % — % Workers’ Compensation 9.3 % 21.8 % 22.5 % 16.2 % 10.8 % 2.9 % 4.6 % 4.0 % Auto 45.4 % 43.6 % 7.0 % 1.8 % 0.5 % — % 0.2 % — % Other Casualty 1.5 % 7.4 % 13.4 % 14.8 % 13.6 % 9.9 % — % — % Credit & Financial Lines 9.3 % 23.6 % 28.5 % 12.7 % 3.6 % 0.1 % (0.3 )% — % Multi-line 21.1 % 27.3 % 21.8 % (0.1 )% 2.1 % 0.4 % — % — % Other Specialty 6.2 % 42.1 % 3.7 % — % — % — % — % — % Retroactive reinsurance contracts Retroactive contracts incepting in the year ended December 31, 2012 n/a n/a n/a n/a n/a n/a n/a n/a Retroactive contracts incepting in the year ended December 31, 2013 4.4 % 23.9 % 31.7 % 4.7 % 3.5 % 2.6 % 3.3 % n/a Retroactive contracts incepting in the year ended December 31, 2014 — % — % — % — % — % — % n/a n/a Retroactive contracts incepting in the year ended December 31, 2015 — % — % — % — % — % n/a n/a n/a Retroactive contracts incepting in the year ended December 31, 2016 n/a n/a n/a n/a n/a n/a n/a n/a Retroactive contracts incepting in the year ended December 31, 2017 — % — % — % n/a n/a n/a n/a n/a Retroactive contracts incepting in the year ended December 31, 2018 — % 97.0 % n/a n/a n/a n/a n/a n/a Retroactive contracts incepting in the year ended December 31, 2019 — % n/a n/a n/a n/a n/a n/a n/a

Management, performance and f_2

Management, performance and founders fees (Tables)	12 Months Ended
	Dec. 31, 2019
Management, Performance and Founders Fees [Abstract]
Schedule of investment fee expenses	The total management and performance fees to related parties, including our share of fees paid in connection with our investment in TP Fund, for the years ended December 31, 2019 , 2018 and 2017 were as follows: 2019 2018 2017 Management fees - Third Point LLC $ — $ 25,797 $ 36,733 Performance fees - Third Point Advisors LLC — 4,048 93,978 Management and performance fees to related parties as reported in the Company’s consolidated statements of income (loss) (1) — 29,845 130,711 Management and performance fees included in net investment income (loss) from investment in related party investment fund (before loss carryforward) 67,026 7,376 — Performance fees - loss carryforward utilized (47,470 ) — — Total management and performance fees to related parties $ 19,556 $ 37,221 $ 130,711 (1)

Deposit contracts (Tables)

Deposit contracts (Tables)	12 Months Ended
	Dec. 31, 2019
Deposit Contracts, Liabilities [Abstract]
Schedule of deposit contracts	The following table represents activity in the deposit contracts for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Balance, beginning of year $ 145,342 $ 129,133 $ 104,905 Consideration received 23,884 17,879 22,658 Consideration receivable 10,164 7,390 2,080 Net investment expense (income) allocation 5,879 (1,273 ) 2,800 Payments (13,052 ) (8,089 ) (3,545 ) Foreign currency translation 42 302 235 Balance, end of year $ 172,259 $ 145,342 $ 129,133

Senior Notes payable and lett_2

Senior Notes payable and letter of credit facilities (Tables)	12 Months Ended
	Dec. 31, 2019
Debt Disclosure [Abstract]
Schedule of Line of Credit Facilities	As of December 31, 2019 , the Company had entered into the following letter of credit facilities: Letters of Credit Collateral Committed Capacity Issued Cash and Cash Equivalents Committed - Secured letters of credit facilities $ 225,000 $ 64,702 $ 64,702 Uncommitted - Secured letters of credit facilities n/a 187,135 189,474 $ 251,837 $ 254,176 (1) The $200.0 million syndicated unsecured letter of credit facility expired on July 30, 2019 and was not renewed.

Net investment income Net inves

Net investment income Net investment income (Tables)	12 Months Ended
	Dec. 31, 2019
Net Investment Income
Schedule of Net Investment Income [Table Text Block]	Net investment income (loss) for the years ended December 31, 2019 , 2018 and 2017 consisted of the following: 2019 2018 2017 Net investment income (loss) by type Net realized gains (losses) on investments and investment derivatives $ (5,850 ) $ 446,646 $ 228,628 Net change in unrealized gains (losses) on investments and investment derivatives 8,381 (412,650 ) 251,496 Net gains (losses) on currencies 12,806 (7,305 ) 6,441 Dividend and interest income 18,551 53,523 65,896 Dividends paid on securities sold, not yet purchased — (5,259 ) (5,724 ) Other expenses (954 ) (15,696 ) (24,073 ) Management and performance fees to related parties (1) — (29,845 ) (130,711 ) Net investment income (loss) from investment in related party investment fund (1) 249,626 (280,847 ) — Net investment income (loss) $ 282,560 $ (251,433 ) $ 391,953 (1) Effective August 31, 2018, Third Point Re, Third Point Re BDA and Third Point Re USA entered into the 2018 LPA to invest in TP Fund. As a result, the management and performance fees are presented within net investment income (loss) from investment in related party investment fund from the effective date of the transition. See Note 9 for additional information regarding management and performance fees. The following table provides an additional breakdown of our net investment income (loss) by asset and liability type for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Net investment income (loss) by asset type Equity securities $ — $ 70,646 $ 467,527 Private common equity securities — (401 ) (6 ) Private preferred equity securities — (2,680 ) 5,764 Total equities — 67,565 473,285 Asset-backed securities — 20,714 12,571 Bank debt — 5,326 8,868 Corporate bonds — (2,958 ) 6,462 Municipal bonds — 9,990 — U.S. Treasury securities 8,703 2,787 2,366 Sovereign debt 515 (7,380 ) 21,553 Other debt securities — 406 2,546 Total debt securities 9,218 28,885 54,366 Options — (15,527 ) (33,510 ) Rights and warrants — 238 169 Real estate — (186 ) 502 Trade claims — (580 ) (89 ) Total other investments — (16,055 ) (32,928 ) Net investment income (loss) in funds valued at NAV, excluding TP Fund (6 ) (723 ) 10,309 Total net investment income from invested assets 9,212 79,672 505,032 Net investment income (loss) by liability type Equity securities — (32,407 ) (35,643 ) Corporate bonds — (2,452 ) (1,725 ) Options — 21,697 (2,907 ) Total net investment loss from securities sold, not yet purchased — (13,162 ) (40,275 ) Other investment income (losses) and other expenses not presented above Other investment income (expenses) (954 ) 903 (5,103 ) Net investment income on derivative contracts — 644 61,978 Net investment income (loss) on cash, including foreign exchange gain (loss) 24,676 (14,885 ) (1,454 ) Net investment losses on securities purchased under an agreement to sell and securities sold under an agreement to repurchase — (238 ) (87 ) Withholding taxes reclassified to income tax expense — 6,325 2,573 Total other investment income (losses) and other expenses 23,722 (7,251 ) 57,907 Management and performance fees to related parties (1) — (29,845 ) (130,711 ) Net investment income (loss) from investment in related party investment fund (1) 249,626 (280,847 ) — Net investment income (loss) $ 282,560 $ (251,433 ) $ 391,953 (1) Effective August 31, 2018, Third Point Re, Third Point Re BDA and Third Point Re USA entered into the 2018 LPA to invest in TP Fund. As a result, the management and performance fees are presented within net investment income (loss) from investment in related party investment fund from the effective date of the transition. See Note 9 for additional information regarding management and performance fees.

Other expenses (Tables)

Other expenses (Tables)	12 Months Ended
	Dec. 31, 2019
Other Income and Expenses [Abstract]
Schedule of other expenses	Other expenses for the years ended December 31, 2019 , 2018 and 2017 consisted of the following: 2019 2018 2017 Investment expense (income) on deposit liabilities $ 5,879 $ (1,273 ) $ 2,800 Investment expense and change in fair value of embedded derivatives in reinsurance contracts 10,740 10,883 9,874 $ 16,619 $ 9,610 $ 12,674

Income taxes (Tables)

Income taxes (Tables)	12 Months Ended
	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Components of Income Tax Expense (Benefit), Continuing Operations	The following table presents the Company’s current and deferred incomes taxes for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Current tax expense $ 54 $ 6,025 $ 2,824 Deferred tax expense (benefit) 659 (10,035 ) 9,152 $ 713 $ (4,010 ) $ 11,976 For the years ended December 31, 2019 , 2018 and 2017 , the Company recorded income tax expense (benefit), as follows: 2019 2018 2017 Income tax expense (benefit) related to U.S. and U.K. subsidiaries $ 713 $ (10,035 ) $ 9,248 Change in uncertain tax positions — (300 ) 155 Withholding taxes on certain investment transactions — 6,325 2,573 $ 713 $ (4,010 ) $ 11,976
Schedule of Income before Income Tax, Domestic and Foreign	The following is a summary of the Company’s income (loss) before income tax expense (benefit) by jurisdiction for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Bermuda $ 197,973 $ (273,697 ) $ 266,497 United States 3,245 (47,771 ) 27,172 United Kingdom 114 (11 ) 78 $ 201,332 $ (321,479 ) $ 293,747
Schedule of Effective Income Tax Rate Reconciliation	The following table presents a reconciliation of expected income taxes to income tax expense (benefit) for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Bermuda (expected tax expense at 0%) $ — $ — $ — Foreign taxes at local expected rates: United States 681 (10,032 ) 9,510 United Kingdom 22 (2 ) 15 Withholding taxes related to dividend and interest income — 6,325 2,573 Uncertain tax positions — (300 ) 155 Non-deductible expenses and other 10 (1 ) (277 ) $ 713 $ (4,010 ) $ 11,976
Schedule of Deferred Tax Assets and Liabilities	The following table presents the tax effects of temporary differences that give rise to the deferred tax assets and deferred tax liabilities as of December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Deferred tax assets: Discounting of loss and loss adjustment expense reserves $ 786 $ 534 $ 330 Unearned premiums 1,774 1,567 1,634 Temporary differences in recognition of expenses 1,208 1,247 138 Net operating loss carryforward 9,282 6,798 7,048 Total deferred tax assets 13,050 10,146 9,150 Deferred tax liabilities: Deferred acquisition costs 1,379 1,490 7,798 Unrealized gains (losses) on investments 3,366 (405 ) 2,435 Total deferred tax liabilities 4,745 1,085 10,233 Net deferred tax asset (liability) $ 8,305 $ 9,061 $ (1,083 )

Share capital (Tables)

Share capital (Tables)	12 Months Ended
	Dec. 31, 2019
Equity [Abstract]
Schedule of Common Stock and Treasury Stock Outstanding	The following table presents a summary of the common shares issued and outstanding as of and for the years ended December 31, 2019 , 2018 and 2017 : Common shares 2019 2018 2017 Common shares issued, beginning of period 93,639,610 107,227,347 106,501,299 Options exercised 187,678 — 150,802 Restricted shares granted, net of forfeitures 366,453 50,644 (35,011 ) Performance restricted shares granted, net of forfeitures and shares withheld 31,757 256,106 610,257 Retirement of treasury shares and shares repurchased (1) — (14,256,043 ) — Warrants exercised, net (2) — 361,556 — Common shares issued, end of period 94,225,498 93,639,610 107,227,347 Treasury shares, end of year — — (3,944,920 ) Common shares outstanding, end of year 94,225,498 93,639,610 103,282,427 (1) Prior to December 31, 2017, common shares repurchased by the Company were not canceled and were classified as treasury shares. Effective January 1, 2018, all treasury shares were retired and subsequent shares repurchased are retired. (2) During the year ended December 31, 2018, 1,156,184 warrants were exercised. As a result of the warrant holder electing net settlement, 794,628 of those common shares were withheld by the Company and were subsequently retired, resulting in a net issuance of 361,556 common shares.
Schedule of summary of warrants	The following is a summary of warrants as of December 31, 2019 : Exercise price Authorized and issued Aggregated fair value of warrants Founders $ 10.00 2,913,684 $ 10,884 Advisor $ 10.00 581,295 2,171 3,494,979 $ 13,055

Share-based compensation (Table

Share-based compensation (Tables)	12 Months Ended
	Dec. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Schedule of share-based compensation expense	The following table provides the total share-based compensation expense included in general and administrative expenses during the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Management and director options $ — $ 275 $ 648 Restricted shares with service condition (1) 1,927 611 (331 ) Restricted shares with service and performance condition 5,134 4,070 3,282 $ 7,061 $ 4,956 $ 3,599 (1) Net of forfeitures of $nil in the year ended December 31, 2019 (December 31, 2018 - $nil and December 31, 2017 - $0.9 million )
Schedule of management and director options activity	The management and director options activity for the years ended December 31, 2019 , 2018 and 2017 were as follows: Number of options Weighted average exercise price Balance as of January 1, 2017 9,596,993 $ 13.64 Forfeited (558,138 ) 18.00 Exercised (150,802 ) 10.00 Balance as of January 1, 2018 8,888,053 13.43 Forfeited — — Exercised — — Balance as of January 1, 2019 8,888,053 13.43 Forfeited (393,717 ) 14.73 Exercised (187,678 ) 10.00 Balance as of December 31, 2019 8,306,658 $ 13.45
Schedule of management and director options outstanding	The following table summarizes information about the Company’s management and director share options outstanding as of December 31, 2019 : Options outstanding Options exercisable Range of exercise prices Number of options Weighted average exercise price Remaining contractual life Number of options Weighted average exercise price $10.00 - $10.89 4,774,694 $ 10.04 2.1 years 4,774,694 $ 10.04 $15.05 - $16.89 1,800,866 $ 15.92 2.3 years 1,800,866 $ 15.92 $20.00 - $25.05 1,731,098 $ 20.28 2.2 years 1,731,098 $ 20.28 8,306,658 $ 13.45 2.2 years 8,306,658 $ 13.45
Schedule of restricted share award activity	Restricted share award activity for the restricted shares with only a service condition for the years ended December 31, 2019 , 2018 and 2017 was as follows: Number of non- vested restricted shares Weighted average grant date fair value Balance as of January 1, 2017 301,043 $ 11.12 Granted 36,418 12.15 Forfeited (71,429 ) 14.00 Vested (247,823 ) 10.36 Balance as of January 1, 2018 18,209 12.15 Granted 50,644 13.45 Vested (44,788 ) 12.97 Balance as of January 1, 2019 24,065 13.35 Granted 403,360 11.10 Forfeited (36,907 ) 11.31 Vested (49,751 ) 12.40 Balance as of December 31, 2019 340,767 $ 11.83
Schedule of restricted shares with a service and performance condition activity	Restricted share award activity for the restricted shares with a service and performance condition for the years ended December 31, 2019 , 2018 and 2017 was as follows: Number of non- vested restricted shares Number of non- vested restricted shares probable of vesting Weighted average grant date fair value Balance as of January 1, 2017 1,381,740 577,486 $ 12.91 Granted 935,825 623,882 12.66 Forfeited (325,568 ) (45,617 ) 12.57 Vested (136,618 ) (136,618 ) 14.60 Change in estimated restricted shares considered probable of vesting n/a (131,930 ) 12.17 Balance as of January 1, 2018 1,855,379 887,203 12.60 Granted 556,403 370,931 14.01 Forfeited (294,977 ) (4,102 ) 13.98 Vested (115,757 ) (115,757 ) 14.00 Change in estimated restricted shares considered probable of vesting n/a 46,945 13.35 Balance as of January 1, 2019 2,001,048 1,185,220 12.80 Granted 862,176 574,784 10.95 Forfeited (823,977 ) (290,552 ) 11.70 Vested (148,718 ) (148,718 ) 11.40 Change in estimated restricted shares considered probable of vesting n/a (6,698 ) 12.92 Balance as of December 31, 2019 1,890,529 1,314,036 $ 12.43

Non-controlling interests (Tabl

Non-controlling interests (Tables)	12 Months Ended
	Dec. 31, 2019
Noncontrolling Interest [Abstract]
Minority Interests	The following table is a reconciliation of the beginning and ending carrying amounts of redeemable noncontrolling interests in related party, noncontrolling interests in related party and total noncontrolling interests in related party for the year ended December 31, 2018 : Redeemable noncontrolling interests in related party Noncontrolling interests in related party Total noncontrolling interests in related party 2018 2018 2018 Balance, beginning of period $ 108,219 $ 5,407 $ 113,626 Changes in capital account allocation (1) (108,219 ) (5,407 ) (113,626 ) Balance, end of period $ — $ — $ — (1) Changes in capital account allocation include TP GP's redemption in conjunction with the change in the investment account structure. See Note 4 for additional information. In addition, the following table is a reconciliation of beginning and ending carrying amount of total noncontrolling interests in related party resulting from the consolidation of the Company’s joint venture in Third Point Re BDA and Third Point Re USA: Third Point Re BDA Third Point Re USA Total 2018 2018 2018 Balance, beginning of period $ 97,619 $ 16,007 $ 113,626 Net income attributable to total noncontrolling interests in related party 141 82 223 Contributions 564 80 644 Redemptions (1) (98,324 ) (16,169 ) (114,493 ) Balance, end of period $ — $ — $ — (1) Redemptions include TP GP's redemption in conjunction with the change in the investment account structure. See Note 4 for additional information.

Earnings (loss) per share ava_2

Earnings (loss) per share available to Third Point Re common shareholders (Tables)	12 Months Ended
	Dec. 31, 2019
Earnings Per Share [Abstract]
Schedule of reconciliation of basic and diluted weighted average shares outstanding	The following sets forth the computation of basic and diluted earnings (loss) per share available to Third Point Re common shareholders for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Weighted-average number of common shares outstanding: ($ in thousands, except share and per share amounts) Basic number of common shares outstanding 91,835,990 97,054,315 102,264,094 Dilutive effect of options 125,530 — 1,392,384 Dilutive effect of warrants 91,884 — 1,270,957 Dilutive effect of restricted shares with service and performance condition 598,912 — 299,603 Diluted number of common shares outstanding 92,652,316 97,054,315 105,227,038 Basic earnings (loss) per common share: Net income (loss) available to Third Point Re common shareholders $ 200,619 $ (317,692 ) $ 277,798 Net income allocated to Third Point Re participating common shareholders (643 ) — (263 ) Net income (loss) allocated to Third Point Re common shareholders $ 199,976 $ (317,692 ) $ 277,535 Basic earnings (loss) per share available to Third Point Re common shareholders $ 2.18 $ (3.27 ) $ 2.71 Diluted earnings (loss) per common share: Net income (loss) available to Third Point Re common shareholders $ 200,619 $ (317,692 ) $ 277,798 Net income allocated to Third Point Re participating common shareholders (637 ) — (256 ) Net income (loss) allocated to Third Point Re common shareholders $ 199,982 $ (317,692 ) $ 277,542 Diluted earnings (loss) per share available to Third Point Re common shareholders $ 2.16 $ (3.27 ) $ 2.64

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Schedule of future minimum rental commitments under lease	Future minimum rental commitments as of December 31, 2019 under these leases are expected to be as follows: 2020 $ 833 2021 236 2022 39 2023 — 2024 — Thereafter — $ 1,108

Segment reporting (Tables)

Segment reporting (Tables)	12 Months Ended
	Dec. 31, 2019
Segment Reporting [Abstract]
Schedule of operating segments	The following is a summary of the Company’s operating segment results for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Property and Casualty Reinsurance Total Property and Casualty Reinsurance Total Property and Casualty Reinsurance Total Revenues Gross premiums written $ 631,846 $ 631,846 $ 578,252 $ 578,252 $ 641,620 $ 641,620 Gross premiums ceded (9,265 ) (9,265 ) (19,895 ) (19,895 ) (2,475 ) (2,475 ) Net premiums written 622,581 622,581 558,357 558,357 639,145 639,145 Change in net unearned premium reserves 77,561 77,561 63,085 63,085 (92,087 ) (92,087 ) Net premiums earned 700,142 700,142 621,442 621,442 547,058 547,058 Expenses Loss and loss adjustment expenses incurred, net 403,499 403,499 438,414 438,414 370,058 370,058 Acquisition costs, net 295,626 295,626 206,498 206,498 188,904 188,904 General and administrative expenses 23,366 23,366 18,635 18,635 30,656 30,656 Total expenses 722,491 722,491 663,547 663,547 589,618 589,618 Net underwriting loss $ (22,349 ) (22,349 ) $ (42,105 ) (42,105 ) $ (42,560 ) (42,560 ) Net investment income (loss) 282,560 (251,433 ) 391,953 Corporate expenses (30,397 ) (17,606 ) (22,447 ) Other expenses (16,619 ) (9,610 ) (12,674 ) Interest expense (8,228 ) (8,228 ) (8,225 ) Foreign exchange gains (losses) (3,635 ) 7,503 (12,300 ) Income tax (expense) benefit (713 ) 4,010 (11,976 ) Net income attributable to noncontrolling interests in related party — (223 ) (3,973 ) Net income (loss) available to Third Point Re common shareholders $ 200,619 $ (317,692 ) $ 277,798 Property and Casualty Reinsurance - Underwriting Ratios (1) : Loss ratio 57.6 % 70.6 % 67.6 % Acquisition cost ratio 42.2 % 33.2 % 34.5 % Composite ratio 99.8 % 103.8 % 102.1 % General and administrative expense ratio 3.4 % 3.0 % 5.6 % Combined ratio 103.2 % 106.8 % 107.7 % (1) Underwriting ratios are calculated by dividing the related expense by net premiums earned.
Schedules of number of contracts that individually contributed more than 10% of total gross premiums written	The following table lists the number of contracts that individually contributed more than 10% of total gross premiums written for the years ended December 31, 2019 , 2018 and 2017 as a percentage of total gross premiums written in the relevant year: 2019 2018 2017 Largest contract 15.2 % 17.5 % 16.1 % Second largest contract n/a 12.1 % 14.1 % Third largest contract n/a n/a 13.1 % Total for contracts contributing greater than 10% each 15.2 % 29.6 % 43.3 % Total for contracts contributing less than 10% each 84.8 % 70.4 % 56.7 % 100.0 % 100.0 % 100.0 % The following table lists counterparties with whom the Company has reinsurance balances receivable representing more than 10% of the Company’s total reinsurance balances receivable as of December 31, 2019 and 2018 : December 31, 2019 December 31, 2018 Counterparty 1 $ 114,252 19.2 % $ 86,155 14.3 % Counterparty 2 105,992 17.8 % 83,079 13.8 % Counterparty 3 88,895 14.9 % 69,641 11.6 % 309,139 51.9 % 238,875 39.7 % Other counterparties representing less than 10% each 286,981 48.1 % 363,573 60.3 % Reinsurance balances receivable $ 596,120 100.0 % $ 602,448 100.0 %
Schedule of breakdown of the Company’s gross premiums written by line of business	The following table provides a breakdown of the Company’s gross premiums written by line of business for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Property $ 144,271 22.8 % $ 9,070 1.6 % $ 136,999 21.4 % Casualty 151,893 24.0 % 235,789 40.8 % 269,759 42.0 % Specialty 248,044 39.3 % 259,173 44.8 % 125,511 19.6 % Total prospective reinsurance contracts 544,208 86.1 % 504,032 87.2 % 532,269 83.0 % Retroactive reinsurance contracts 87,638 13.9 % 74,220 12.8 % 109,351 17.0 % $ 631,846 100.0 % $ 578,252 100.0 % $ 641,620 100.0 %
Schedule of breakdown of the Company’s gross premiums written from brokers	The following table sets forth the Company’s premiums written by source that individually contributed more than 10% of total gross premiums written for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Largest broker $ 160,404 25.4 % $ 198,251 34.3 % $ 243,581 38.0 % Second largest broker 150,377 23.8 % 157,542 27.2 % 128,648 20.1 % Third largest broker 137,685 21.8 % 70,524 12.2 % 107,612 16.8 % Other 183,380 29.0 % 151,935 26.3 % 161,779 25.1 % $ 631,846 100.0 % $ 578,252 100.0 % $ 641,620 100.0 %
Schedule of breakdown of the Company’s gross premiums written by domicile of the ceding companies	The following table provides a breakdown of the Company’s gross premiums written by domicile of the ceding companies for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 United States $ 326,987 51.8 % $ 326,261 56.4 % $ 352,539 54.9 % United Kingdom 154,909 24.5 % 63,619 11.0 % 203,768 31.8 % Bermuda 142,246 22.5 % 93,406 16.2 % 62,234 9.7 % Other 7,704 1.2 % 94,966 16.4 % 23,079 3.6 % $ 631,846 100.0 % $ 578,252 100.0 % $ 641,620 100.0 %

Statutory Requirements (Tables)

Statutory Requirements (Tables)	12 Months Ended
	Dec. 31, 2019
Statutory Requirements [Abstract]
Schedule of statutory requirements	The following is a summary of estimated actual and required statutory capital and surplus, based on the EBS framework, of Third Point Re BDA and Third Point Re USA as of December 31, 2019 and 2018 : December 31, 2019 December 31, 2018 Actual statutory capital and surplus Third Point Re BDA $ 1,298,596 $ 1,043,357 Third Point Re USA 276,185 255,872 Required statutory capital and surplus Third Point Re BDA 555,714 574,405 Third Point Re USA $ 112,601 $ 100,000 The following is a summary of the statutory net income (loss) for Third Point Re and Third Point Re USA for the years ended December 31, 2019 , 2018 and 2017 : 2019 2018 2017 Third Point Re BDA $ 214,227 $ (272,339 ) $ 265,903 Third Point Re USA $ 9,016 $ (29,491 ) $ 22,310

Supplemental guarantor inform_2

Supplemental guarantor information (Tables)	12 Months Ended
	Dec. 31, 2019
Condensed Financial Information Disclosure [Abstract]
Condensed Consolidating Balance Sheet	CONSOLIDATING BALANCE SHEET As of December 31, 2019 Third Point Re TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Assets Total investments in securities $ 4,000 $ — $ 985,701 $ — $ 989,701 Cash and cash equivalents 10 176 639,229 — 639,415 Restricted cash and cash equivalents — — 1,014,543 — 1,014,543 Investment in subsidiaries 1,419,197 271,624 191,077 (1,881,898 ) — Interest and dividends receivable — — 2,178 — 2,178 Reinsurance balances receivable — — 596,120 — 596,120 Deferred acquisition costs, net — — 154,717 — 154,717 Unearned premiums ceded — — 16,945 — 16,945 Loss and loss adjustment expenses recoverable — — 5,520 — 5,520 Amounts due from (to) affiliates (5,722 ) (3,898 ) 9,620 — — Other assets 764 6,784 13,007 — 20,555 Total assets $ 1,418,249 $ 274,686 $ 3,628,657 $ (1,881,898 ) $ 3,439,694 Liabilities Accounts payable and accrued expenses $ 4,175 $ — $ 13,641 $ — $ 17,816 Reinsurance balances payable — — 81,941 — 81,941 Deposit liabilities — — 172,259 — 172,259 Unearned premium reserves — — 524,768 — 524,768 Loss and loss adjustment expense reserves — — 1,111,692 — 1,111,692 Interest and dividends payable — 3,055 — — 3,055 Senior notes payable, net of deferred costs — 114,089 — — 114,089 Total liabilities 4,175 117,144 1,904,301 — 2,025,620 Shareholders' equity Common shares 9,423 — 1,239 (1,239 ) 9,423 Additional paid-in capital 927,704 191,361 1,591,796 (1,783,157 ) 927,704 Retained earnings (deficit) 476,947 (33,819 ) 131,321 (97,502 ) 476,947 Shareholders’ equity attributable to Third Point Re common shareholders 1,414,074 157,542 1,724,356 (1,881,898 ) 1,414,074 Total liabilities and shareholders’ equity $ 1,418,249 $ 274,686 $ 3,628,657 $ (1,881,898 ) $ 3,439,694 CONSOLIDATING BALANCE SHEET As of December 31, 2018 Third Point Re TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Assets Total investments in securities $ — $ — $ 1,523,728 $ — $ 1,523,728 Cash and cash equivalents — 187 103,996 — 104,183 Restricted cash and cash equivalents — — 609,154 — 609,154 Investment in subsidiaries 1,207,161 251,350 175,758 (1,634,269 ) — Due from brokers — — 1,411 — 1,411 Interest and dividends receivable — — 1,316 — 1,316 Reinsurance balances receivable — — 602,448 — 602,448 Deferred acquisition costs, net — — 203,842 — 203,842 Unearned premiums ceded — — 17,552 — 17,552 Loss and loss adjustment expenses recoverable — — 2,031 — 2,031 Amounts due from (to) affiliates (3,522 ) 52 3,470 — — Other assets 1,673 5,069 13,827 — 20,569 Total assets $ 1,205,312 $ 256,658 $ 3,258,533 $ (1,634,269 ) $ 3,086,234 Liabilities Accounts payable and accrued expenses $ 738 $ 70 $ 6,453 $ — $ 7,261 Reinsurance balances payable — — 69,701 — 69,701 Deposit liabilities — — 145,342 — 145,342 Unearned premium reserves — — 602,936 — 602,936 Loss and loss adjustment expense reserves — — 937,157 — 937,157 Participation agreement with related party investment fund — — 2,297 — 2,297 Interest and dividends payable — 3,055 — — 3,055 Senior notes payable, net of deferred costs — 113,911 — — 113,911 Total liabilities 738 117,036 1,763,886 — 1,881,660 Shareholders’ equity Common shares 9,364 — 1,239 (1,239 ) 9,364 Additional paid-in capital 918,882 176,005 1,557,016 (1,733,021 ) 918,882 Retained earnings (deficit) 276,328 (36,383 ) (63,608 ) 99,991 276,328 Shareholders’ equity attributable to Third Point Re common shareholders 1,204,574 139,622 1,494,647 (1,634,269 ) 1,204,574 Total liabilities and shareholders’ equity $ 1,205,312 $ 256,658 $ 3,258,533 $ (1,634,269 ) $ 3,086,234
Condensed Consolidating Statement of Income	CONSOLIDATING STATEMENT OF INCOME Year Ended December 31, 2019 Third Point Re TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Revenues Gross premiums written $ — $ — $ 631,846 $ — $ 631,846 Gross premiums ceded — — (9,265 ) — (9,265 ) Net premiums written — — 622,581 — 622,581 Change in net unearned premium reserves — — 77,561 — 77,561 Net premiums earned — — 700,142 — 700,142 Net investment income — — 282,560 — 282,560 Equity in earnings (losses) of subsidiaries 216,877 9,017 (40 ) (225,854 ) — Total revenues 216,877 9,017 982,662 (225,854 ) 982,702 Expenses Loss and loss adjustment expenses incurred, net — — 403,499 — 403,499 Acquisition costs, net — — 295,626 — 295,626 General and administrative expenses 16,258 (59 ) 37,564 — 53,763 Other expenses — — 16,619 — 16,619 Interest expense — 8,228 — — 8,228 Foreign exchange losses — — 3,635 — 3,635 Total expenses 16,258 8,169 756,943 — 781,370 Income before income tax (expense) benefit 200,619 848 225,719 (225,854 ) 201,332 Income tax (expense) benefit — 1,716 (2,429 ) — (713 ) Net income 200,619 2,564 223,290 (225,854 ) 200,619 Net income attributable to noncontrolling interests in related party — — — — — Net income available to Third Point Re common shareholders $ 200,619 $ 2,564 $ 223,290 $ (225,854 ) $ 200,619 CONSOLIDATING STATEMENT OF LOSS Year Ended December 31, 2018 Third Point Re TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Revenues Gross premiums written $ — $ — $ 578,252 $ — $ 578,252 Gross premiums ceded — — (19,895 ) — (19,895 ) Net premiums written — — 558,357 — 558,357 Change in net unearned premium reserves — — 63,085 — 63,085 Net premiums earned — — 621,442 — 621,442 Net investment loss — — (251,433 ) — (251,433 ) Equity in losses of subsidiaries (310,552 ) (29,492 ) (57 ) 340,101 — Total revenues (310,552 ) (29,492 ) 369,952 340,101 370,009 Expenses Loss and loss adjustment expenses incurred, net — — 438,414 — 438,414 Acquisition costs, net — — 206,498 — 206,498 General and administrative expenses 7,140 47 29,054 — 36,241 Other expenses — — 9,610 — 9,610 Interest expense — 8,228 — — 8,228 Foreign exchange gains — — (7,503 ) — (7,503 ) Total expenses 7,140 8,275 676,073 — 691,488 Loss before income tax (expense) benefit (317,692 ) (37,767 ) (306,121 ) 340,101 (321,479 ) Income tax (expense) benefit — (419 ) 4,429 — 4,010 Net loss (317,692 ) (38,186 ) (301,692 ) 340,101 (317,469 ) Net income attributable to noncontrolling interests in related party — — (223 ) — (223 ) Net loss attributable to Third Point Re common shareholders $ (317,692 ) $ (38,186 ) $ (301,915 ) $ 340,101 $ (317,692 ) CONSOLIDATING STATEMENT OF INCOME Year Ended December 31, 2017 Third Point Re TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Revenues Gross premiums written $ — $ — $ 641,620 $ — $ 641,620 Gross premiums ceded — — (2,475 ) — (2,475 ) Net premiums written — — 639,145 — 639,145 Change in net unearned premium reserves — — (92,087 ) — (92,087 ) Net premiums earned — — 547,058 — 547,058 Net investment income — — 391,953 — 391,953 Equity in earnings (losses) of subsidiaries 283,088 22,309 (57 ) (305,340 ) — Total revenues 283,088 22,309 938,954 (305,340 ) 939,011 Expenses Loss and loss adjustment expenses incurred, net — — 370,058 — 370,058 Acquisition costs, net — — 188,904 — 188,904 General and administrative expenses 5,290 49 47,764 — 53,103 Other expenses — — 12,674 — 12,674 Interest expense — 8,225 — — 8,225 Foreign exchange losses — — 12,300 — 12,300 Total expenses 5,290 8,274 631,700 — 645,264 Income before income tax (expense) benefit 277,798 14,035 307,254 (305,340 ) 293,747 Income tax (expense) benefit — 3,062 (15,038 ) — (11,976 ) Net income 277,798 17,097 292,216 (305,340 ) 281,771 Net income attributable to noncontrolling interests in related party — — (3,973 ) — (3,973 ) Net income available to Third Point Re common shareholders $ 277,798 $ 17,097 $ 288,243 $ (305,340 ) $ 277,798
Condensed Consolidating Statement of Cash Flows	CONSOLIDATING STATEMENT OF CASH FLOWS Year Ended December 31, 2019 Third Point Re TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Operating activities Net income $ 200,619 $ 2,564 $ 223,290 $ (225,854 ) $ 200,619 Adjustments to reconcile net income to net cash provided by (used in) operating activities: Equity in (earnings) losses of subsidiaries (216,877 ) (9,017 ) 40 225,854 — Share compensation expense 2,653 — 4,408 — 7,061 Net interest expense on deposit liabilities — — 5,879 — 5,879 Net realized and unrealized gain on investments and derivatives — — (2,522 ) — (2,522 ) Net realized and unrealized gain on investment in related party investment fund — — (249,626 ) — (249,626 ) Net foreign exchange losses — — 3,635 — 3,635 Amortization of premium and accretion of discount, net — 178 (1,560 ) — (1,382 ) Changes in assets and liabilities: Reinsurance balances receivable — — 30,039 — 30,039 Deferred acquisition costs, net — — 49,125 — 49,125 Unearned premiums ceded — — 607 — 607 Loss and loss adjustment expenses recoverable — — (3,489 ) — (3,489 ) Other assets 909 (1,715 ) 634 — (172 ) Interest and dividends receivable, net — — (862 ) — (862 ) Unearned premium reserves — — (78,168 ) — (78,168 ) Loss and loss adjustment expense reserves — — 157,849 — 157,849 Accounts payable and accrued expenses 3,437 (71 ) 7,189 — 10,555 Reinsurance balances payable — — 11,964 — 11,964 Amounts due from (to) affiliates 2,200 3,950 (6,150 ) — — Net cash provided by (used in) operating activities (7,059 ) (4,111 ) 152,282 — 141,112 Investing activities Proceeds from redemptions from related party investment fund — — 760,000 — 760,000 Contributions to related party investment fund — — (87,000 ) — (87,000 ) Change in participation agreement with related party investment fund — — (2,297 ) — (2,297 ) Purchases of investments (4,000 ) — (327,463 ) — (331,463 ) Proceeds from sales and maturities of investments — — 446,206 — 446,206 Change in due to/from brokers, net — — 1,411 — 1,411 Contributed capital to subsidiaries (15,000 ) 15,000 — — — Contributed capital from parent and/or subsidiaries — (15,000 ) 15,000 — — Net cash provided by (used in) investing activities (19,000 ) — 805,857 — 786,857 Financing activities Proceeds from issuance of Third Point Re common shares, net of costs 1,888 — — — 1,888 Taxes paid on withholding shares (68 ) — — — (68 ) Net proceeds from deposit liability contracts — — 10,832 — 10,832 Dividend received by (paid to) parent 24,249 4,100 (28,349 ) — — Net cash provided by (used in) financing activities 26,069 4,100 (17,517 ) — 12,652 Net increase (decrease) in cash, cash equivalents and restricted cash 10 (11 ) 940,622 — 940,621 Cash, cash equivalents and restricted cash at beginning of period — 187 713,150 — 713,337 Cash, cash equivalents and restricted cash at end of period $ 10 $ 176 $ 1,653,772 $ — $ 1,653,958 CONSOLIDATING STATEMENT OF CASH FLOWS Year Ended December 31, 2018 Third Point Re TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Operating activities Net loss $ (317,692 ) $ (38,186 ) $ (301,692 ) $ 340,101 $ (317,469 ) Adjustments to reconcile net loss to net cash provided by (used in) operating activities: Equity in losses of subsidiaries 310,552 29,492 57 (340,101 ) — Share compensation expense 610 — 4,346 — 4,956 Net interest income on deposit liabilities — — (1,273 ) — (1,273 ) Net realized and unrealized gain on investments and derivatives — — (34,145 ) — (34,145 ) Net realized and unrealized loss on investment in related party investment fund — — 280,847 — 280,847 Net foreign exchange gains — — (7,503 ) — (7,503 ) Amortization of premium and accretion of discount, net — 178 3,956 — 4,134 Changes in assets and liabilities: Reinsurance balances receivable — — (120,620 ) — (120,620 ) Deferred acquisition costs, net — — 54,951 — 54,951 Unearned premiums ceded — — (16,503 ) — (16,503 ) Loss and loss adjustment expenses recoverable — — (918 ) — (918 ) Other assets (1,009 ) (5,069 ) (7,408 ) — (13,486 ) Interest and dividends receivable, net — — (2,716 ) — (2,716 ) Unearned premium reserves — — (46,582 ) — (46,582 ) Loss and loss adjustment expense reserves — — 225,670 — 225,670 Accounts payable and accrued expenses (25 ) 5,513 (30,172 ) — (24,684 ) Reinsurance balances payable — — 28,728 — 28,728 Amounts due from (to) affiliates 2,234 360 (2,594 ) — — Net cash provided by (used in) operating activities (5,330 ) (7,712 ) 26,429 — 13,387 Investing activities Proceeds from redemptions from related party investment fund — — 142,968 — 142,968 Contributions to related party investment fund — — (136,626 ) — (136,626 ) Change in participation agreement with related party investment fund — — (20,852 ) — (20,852 ) Purchases of investments — — (3,483,319 ) — (3,483,319 ) Proceeds from sales and maturities of investments — — 3,475,515 — 3,475,515 Purchases of investments to cover short sales — — (853,798 ) — (853,798 ) Proceeds from short sales of investments — — 800,508 — 800,508 Change in due to/from brokers, net — — 482,778 — 482,778 Decrease in securities sold under an agreement to repurchase — — (29,618 ) — (29,618 ) Contributed capital to subsidiaries (10,000 ) 10,000 — — — Contributed capital from parent and/or subsidiaries — (10,000 ) 10,000 — — Net cash provided by (used in) investing activities (10,000 ) — 387,556 — 377,556 Financing activities Taxes paid on withholding shares (74 ) — — — (74 ) Purchases of Third Point Re common shares under share repurchase program (138,705 ) — — — (138,705 ) Net proceeds from deposit liability contracts — — 9,790 — 9,790 Change in total noncontrolling interests in related party, net — — (97,950 ) — (97,950 ) Dividend received by (paid to) parent 154,100 7,700 (161,800 ) — — Net cash provided by (used in) financing activities 15,321 7,700 (249,960 ) — (226,939 ) Net increase (decrease) in cash, cash equivalents and restricted cash (9 ) (12 ) 164,025 — 164,004 Cash, cash equivalents and restricted cash at beginning of period 9 199 549,125 — 549,333 Cash, cash equivalents and restricted cash at end of period $ — $ 187 $ 713,150 $ — $ 713,337 CONSOLIDATING STATEMENT OF CASH FLOWS Year Ended December 31, 2017 Third Point Re TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Operating activities Net income $ 277,798 $ 17,097 $ 292,216 $ (305,340 ) $ 281,771 Adjustments to reconcile net income to net cash used in operating activities: Equity in (earnings) losses of subsidiaries (283,088 ) (22,309 ) 57 305,340 — Share compensation expense 298 — 3,301 — 3,599 Net interest expense on deposit liabilities — — 2,800 — 2,800 Net realized and unrealized gain on investments and derivatives — — (480,045 ) — (480,045 ) Net foreign exchange losses — — 12,300 — 12,300 Amortization of premium and accretion of discount, net — 178 295 — 473 Changes in assets and liabilities: Reinsurance balances receivable — — (86,606 ) — (86,606 ) Deferred acquisition costs, net — — (37,175 ) — (37,175 ) Unearned premiums ceded — — (354 ) — (354 ) Loss and loss adjustment expenses recoverable — — (1,112 ) — (1,112 ) Other assets (27 ) 5,507 3,657 — 9,137 Interest and dividends receivable, net — (2 ) 3,565 — 3,563 Unearned premium reserves — — 92,442 — 92,442 Loss and loss adjustment expense reserves — — 97,922 — 97,922 Accounts payable and accrued expenses (388 ) (8,845 ) 33,445 — 24,212 Reinsurance balances payable — — (1,463 ) — (1,463 ) Amounts due from (to) affiliates 1,146 (8,806 ) 7,660 — — Net cash used in operating activities (4,261 ) (17,180 ) (57,095 ) — (78,536 ) Investing activities Purchases of investments — — (3,099,525 ) — (3,099,525 ) Proceeds from sales of investments — — 3,228,251 — 3,228,251 Purchases of investments to cover short sales — — (791,753 ) — (791,753 ) Proceeds from short sales of investments — — 1,048,552 — 1,048,552 Change in due to/from brokers, net — — (149,898 ) — (149,898 ) Increase in securities sold under an agreement to repurchase — — 29,618 — 29,618 Net cash provided by investing activities — — 265,245 — 265,245 Financing activities Proceeds from issuance of common shares, net of costs 1,505 — — — 1,505 Purchases of Third Point Re common shares under share repurchase program (40,864 ) — — — (40,864 ) Net proceeds from deposit liability contracts — — 19,113 — 19,113 Change in total noncontrolling interests in related party, net — — 73,979 — 73,979 Dividend received by (paid to) parent 42,000 17,300 (59,300 ) — — Net cash provided by financing activities 2,641 17,300 33,792 — 53,733 Net increase (decrease) in cash, cash equivalents and restricted cash (1,620 ) 120 241,942 — 240,442 Cash, cash equivalents and restricted cash at beginning of period 1,629 79 307,183 — 308,891 Cash, cash equivalents and restricted cash at end of period $ 9 $ 199 $ 549,125 $ — $ 549,333

Quarterly Financial Results (Ta

Quarterly Financial Results (Tables)	12 Months Ended
	Dec. 31, 2019
Quarterly Financial Information Disclosure [Abstract]
Schedule of quarterly financial results	Three months ended December 31, September 30, June 30, March 31, Revenues Gross premiums written $ 134,230 $ 95,388 $ 82,637 $ 319,591 Gross premiums ceded (5,964 ) (1,116 ) (1,473 ) (712 ) Net premiums written 128,266 94,272 81,164 318,879 Change in net unearned premium reserves 70,126 108,976 64,288 (165,829 ) Net premiums earned 198,392 203,248 145,452 153,050 Net investment income (loss) 61,614 (3,138 ) 69,131 154,953 Total revenues 260,006 200,110 214,583 308,003 Expenses Loss and loss adjustment expenses incurred, net 140,394 85,703 82,334 95,068 Acquisition costs, net 61,851 118,271 58,006 57,498 General and administrative expenses 12,744 9,237 19,650 12,132 Other expenses 3,625 5,058 3,811 4,125 Interest expense 2,074 2,074 2,051 2,029 Foreign exchange (gains) losses 10,298 (4,921 ) (4,260 ) 2,518 Total expenses 230,986 215,422 161,592 173,370 Income (loss) before income tax (expense) benefit 29,020 (15,312 ) 52,991 134,633 Income tax (expense) benefit 718 213 74 (1,718 ) Net income (loss) 29,738 (15,099 ) 53,065 132,915 Net income attributable to noncontrolling interests in related party — — — — Net income (loss) available to Third Point Re common shareholders $ 29,738 $ (15,099 ) $ 53,065 $ 132,915 Earnings (loss) per share available to Third Point Re common shareholders Basic earnings (loss) per share available to Third Point Re common shareholders $ 0.32 $ (0.16 ) $ 0.58 $ 1.45 Diluted earnings (loss) per share available to Third Point Re common shareholders $ 0.32 $ (0.16 ) $ 0.57 $ 1.43 Weighted average number of common shares used in the determination of earnings (loss) per share Basic 91,989,469 91,903,556 91,776,870 91,669,810 Diluted 92,696,491 91,903,556 92,801,799 92,578,933 Three months ended December 31, September 30, June 30, March 31, Revenues Gross premiums written $ 120,063 $ 30,064 $ 49,765 $ 378,360 Gross premiums ceded (1,770 ) — (3,479 ) (14,646 ) Net premiums written 118,293 30,064 46,286 363,714 Change in net unearned premium reserves 91,177 97,929 95,207 (221,228 ) Net premiums earned 209,470 127,993 141,493 142,486 Net investment income (loss) (276,810 ) (3,590 ) 31,175 (2,208 ) Total revenues (67,340 ) 124,403 172,668 140,278 Expenses Loss and loss adjustment expenses incurred, net 173,088 88,706 84,000 92,620 Acquisition costs, net 56,668 40,841 57,584 51,405 General and administrative expenses 7,553 9,511 9,696 9,481 Other (income) expenses 2,994 (1,362 ) 3,983 3,995 Interest expense 2,074 2,074 2,051 2,029 Foreign exchange (gains) losses (3,288 ) (1,979 ) (8,847 ) 6,611 Total expenses 239,089 137,791 148,467 166,141 Income (loss) before income tax (expense) benefit (306,429 ) (13,388 ) 24,201 (25,863 ) Income tax (expense) benefit 8,417 111 (4,390 ) (128 ) Net income (loss) (298,012 ) (13,277 ) 19,811 (25,991 ) Net income attributable to noncontrolling interests in related party — (4 ) (209 ) (10 ) Net income (loss) available to Third Point Re common shareholders $ (298,012 ) $ (13,281 ) $ 19,602 $ (26,001 ) Earnings (loss) per share available to Third Point Re common shareholders Basic earnings (loss) per share available to Third Point Re common shareholders $ (3.24 ) $ (0.14 ) $ 0.20 $ (0.26 ) Diluted earnings (loss) per share available to Third Point Re common shareholders $ (3.24 ) $ (0.14 ) $ 0.19 $ (0.26 ) Weighted average number of common shares used in the determination of earnings (loss) pe r share Basic 91,967,831 95,671,385 99,498,901 101,195,747 Diluted 91,967,831 95,671,385 102,032,485 101,195,747

- Accounting Policies (Details)

- Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2019USD ($)segment
Accounting Policies [Abstract]
Premium Deficiency Loss | $	$ 0
Number of operating segments | segment	1

Restricted cash and cash equi_3

Restricted cash and cash equivalents and investments (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Restricted Cash and Cash Equivalents and Investments Items [Line Items]
Cash and cash equivalents	$ 639,415	$ 104,183
Restricted cash and cash equivalents	1,014,543	609,154
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	1,653,958	713,337	$ 549,333	$ 308,891
Restricted investments securing other reinsurance contracts	142,617	239,640
Cash, cash equivalents, restricted cash, restricted cash equivalents and restricted investments	1,796,575	952,977
Letter of Credit
Restricted Cash and Cash Equivalents and Investments Items [Line Items]
Restricted cash and cash equivalents	254,176	203,953
Restricted cash securing other reinsurance contracts
Restricted Cash and Cash Equivalents and Investments Items [Line Items]
Restricted cash and cash equivalents	$ 760,367	$ 405,201

Investments - Schedule of the s

Investments - Schedule of the separate account managed by TP LLC (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Assets
Total assets	$ 2,590,636	$ 2,136,542
Liabilities and shareholders’ equity
Total liabilities and shareholders' equity	509	2,411
Total net investments managed by Third Point LLC	2,590,127	2,134,131
TP Fund
Assets
Total assets	860,630	1,284,004
Total debt securities
Assets
Total assets	125,071	239,640
Total investments in securities
Assets
Total assets	985,701	1,523,644
Cash and cash equivalents
Assets
Total assets	588,196	1,017
Restricted cash and cash equivalents
Assets
Total assets	1,014,543	609,154
Due from brokers
Assets
Total assets	0	1,411
Interest and dividends receivable
Assets
Total assets	2,178	1,316
Other Assets [Member]
Assets
Total assets	18	0
Accounts payable and accrued expenses
Liabilities and shareholders’ equity
Total liabilities and shareholders' equity	509	114
Participation agreement [Member]
Liabilities and shareholders’ equity
Total liabilities and shareholders' equity	$ 0	$ 2,297

Investments - Narrative (Detail

Investments - Narrative (Details)	Dec. 31, 2019	Dec. 31, 2018
TP Fund
Investment [Line Items]
Annual Investment Management Fee	1.25%	1.50%

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Investment [Line Items]
Fair Value, Assets, Level 1 to Level 2 Transfers, Amount	$ 0	$ 0
Private common equity securities	3,000
Fair Value, Assets, Level 2 to Level 1 Transfers, Amount	0	0
Fair Value, Liabilities, Level 1 to Level 2 Transfers, Amount	0	0
Fair Value, Liabilities, Level 2 to Level 1 Transfers, Amount	0	0
Fair Value, Assets Measured on Recurring Basis, Change in Unrealized Gain (Loss)	0	0	$ 9,500
Equity Securities [Member]
Investment [Line Items]
Trading Securities, Change in Unrealized Holding Gain (Loss)	0	0	330,400
Total debt securities
Investment [Line Items]
Trading Securities, Change in Unrealized Holding Gain (Loss)	$ 10,000	$ (6,700)	$ (12,400)

Fair Value Measurements - Fair

Fair Value Measurements - Fair value hierarchy (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Assets
U.S. Treasury securities	$ 101,186	$ 197,312
Sovereign debt	23,885	42,328
Total assets	129,071
Assets Including Alternative Investments, Fair Value Disclosure	989,701	1,523,728
Liabilities
Derivative liabilities (embedded)	31	22
Total liabilities	31	22
Quoted prices in active markets (Level 1)
Assets
U.S. Treasury securities	0	0
Sovereign debt	0	0
Total assets	0
Liabilities
Derivative liabilities (embedded)	0	0
Total liabilities	0	0
Significant other observable inputs (Level 2)
Assets
U.S. Treasury securities	101,186	197,312
Sovereign debt	23,885	42,328
Total assets	125,071
Liabilities
Derivative liabilities (embedded)	0	0
Total liabilities	0	0
Significant unobservable inputs (Level 3)
Assets
U.S. Treasury securities	0	0
Sovereign debt	0	0
Total assets	4,000
Liabilities
Derivative liabilities (embedded)	31	22
Total liabilities	$ 31	$ 22

Fair Value Measurements - Sched

Fair Value Measurements - Schedule of investments, categorized by the level of the fair value hierarchy (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Assets
Equity securities	$ 1,000
Private common equity securities	3,000
Total equities	4,000
U.S. Treasury securities	101,186	$ 197,312
Sovereign debt	23,885	42,328
Total debt securities	125,071	239,640
Total assets	129,071
Investments in funds valued at NAV	860,630	1,284,088
Assets Including Alternative Investments, Fair Value Disclosure	989,701	1,523,728
Liabilities
Total liabilities	31	22
Derivative liabilities (embedded)	31	22
Quoted prices in active markets (Level 1)
Assets
Equity securities	0
Private common equity securities	0
Total equities	0
U.S. Treasury securities	0	0
Sovereign debt	0	0
Total debt securities	0	0
Total assets	0
Liabilities
Total liabilities	0	0
Derivative liabilities (embedded)	0	0
Significant other observable inputs (Level 2)
Assets
Equity securities	0
Private common equity securities	0
Total equities	0
U.S. Treasury securities	101,186	197,312
Sovereign debt	23,885	42,328
Total debt securities	125,071	239,640
Total assets	125,071
Liabilities
Total liabilities	0	0
Derivative liabilities (embedded)	0	0
Significant unobservable inputs (Level 3)
Assets
Equity securities	1,000
Private common equity securities	3,000
Total equities	4,000
U.S. Treasury securities	0	0
Sovereign debt	0	0
Total debt securities	0	0
Total assets	4,000
Liabilities
Total liabilities	31	22
Derivative liabilities (embedded)	$ 31	$ 22

Fair Value Measurements - Sch_2

Fair Value Measurements - Schedule of reconciliation of the balances for all investments measured at fair value using significant unobservable inputs (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Assets
Asset fair value, beginning balance	$ 0	$ 107,075
Transfers in to (out of) Level 3	0	0
Purchases	4,000	76,973
Sales	0	(177,570)
Realized and Unrealized Gains (Losses)	0	(6,478)
Asset fair value, ending balance	4,000	0
Liabilities
Liability fair value, beginning balance	(22)	(2,256)
Transfers in to (out of) Level 3	0	0
Purchases	0	0
Sales	0	1,797
Realized and Unrealized Gains(Losses) (2)	(9)	437
Liability fair value, ending balance	(31)	(22)
Derivative liabilities (free standing)
Liabilities
Liability fair value, beginning balance	0	(2,085)
Transfers in to (out of) Level 3		0
Purchases		0
Sales		1,797
Realized and Unrealized Gains(Losses) (2)		288
Liability fair value, ending balance		0
Derivative liabilities (embedded)
Liabilities
Liability fair value, beginning balance	(22)	(171)
Transfers in to (out of) Level 3	0	0
Purchases	0	0
Sales	0	0
Realized and Unrealized Gains(Losses) (2)	(9)	149
Liability fair value, ending balance	(31)	(22)
Private Common Equity Securities
Assets
Asset fair value, beginning balance	0	4,794
Transfers in to (out of) Level 3	0	0
Purchases	1,000	567
Sales	0	(4,726)
Realized and Unrealized Gains (Losses)	0	(635)
Asset fair value, ending balance	1,000	0
Private preferred equity securities
Assets
Asset fair value, beginning balance	0	57,126
Transfers in to (out of) Level 3	0	0
Purchases	3,000	38,376
Sales	0	(91,065)
Realized and Unrealized Gains (Losses)	0	(4,437)
Asset fair value, ending balance	3,000	0
Asset-backed securities
Assets
Asset fair value, beginning balance	0	27,308
Transfers in to (out of) Level 3		0
Purchases		35,905
Sales		(60,906)
Realized and Unrealized Gains (Losses)		(2,307)
Asset fair value, ending balance		0
Corporate bonds
Assets
Asset fair value, beginning balance	0	9,868
Transfers in to (out of) Level 3		0
Purchases		1,372
Sales		(11,763)
Realized and Unrealized Gains (Losses)		523
Asset fair value, ending balance		0
Other debt securities
Assets
Asset fair value, beginning balance	0	713
Transfers in to (out of) Level 3		0
Purchases		0
Sales		(913)
Realized and Unrealized Gains (Losses)		200
Asset fair value, ending balance		0
Rights and warrants
Assets
Asset fair value, beginning balance	0	435
Transfers in to (out of) Level 3		0
Purchases		753
Sales		(1,380)
Realized and Unrealized Gains (Losses)		192
Asset fair value, ending balance		0
Real estate
Assets
Asset fair value, beginning balance	$ 0	6,831
Transfers in to (out of) Level 3		0
Purchases		0
Sales		(6,817)
Realized and Unrealized Gains (Losses)		(14)
Asset fair value, ending balance		$ 0

Derivatives - Schedule of listi

Derivatives - Schedule of listing currency, fair value and notional amounts of derivative instruments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Derivative [Line Items]
Realized Gain (Loss) on Derivatives	$ 0	$ 28,035	$ 32,582
Unrealized Gain (Loss) on Derivatives	0	(27,391)	29,396
Credit Default Swaps - Protection Purchased
Derivative [Line Items]
Realized Gain (Loss) on Derivatives	0	(3,557)	(3,462)
Unrealized Gain (Loss) on Derivatives	0	921	(978)
Credit Default Swaps - Protection Sold
Derivative [Line Items]
Realized Gain (Loss) on Derivatives	0	(333)	605
Unrealized Gain (Loss) on Derivatives	0	744	(720)
Equity Contracts | Long Contracts / Purchased
Derivative [Line Items]
Realized Gain (Loss) on Derivatives	0	32,460	58,047
Unrealized Gain (Loss) on Derivatives	0	(15,098)	13,334
Equity Contracts | Short Contracts / Sold
Derivative [Line Items]
Realized Gain (Loss) on Derivatives	0	4,568	2,608
Unrealized Gain (Loss) on Derivatives	0	(3,608)	4,715
Total Return Swaps | Long Contracts / Purchased
Derivative [Line Items]
Realized Gain (Loss) on Derivatives	0	16,792	16,863
Unrealized Gain (Loss) on Derivatives	0	(15,864)	16,923
Total Return Swaps | Short Contracts / Sold
Derivative [Line Items]
Realized Gain (Loss) on Derivatives	0	(17,329)	(15,892)
Unrealized Gain (Loss) on Derivatives	0	1,883	(765)
Interest Rate Swaps
Derivative [Line Items]
Realized Gain (Loss) on Derivatives	0	0	(3,104)
Unrealized Gain (Loss) on Derivatives	0	0	(1,740)
Interest Rate Swaptions
Derivative [Line Items]
Realized Gain (Loss) on Derivatives	0	(1,819)	(354)
Unrealized Gain (Loss) on Derivatives	0	1,228	(2,056)
Foreign Currency Forward Contracts
Derivative [Line Items]
Realized Gain (Loss) on Derivatives	0	(2,849)	(10,470)
Unrealized Gain (Loss) on Derivatives	0	4,403	(3,048)
Foreign Currency Future Options - Purchased | Long Contracts / Purchased
Derivative [Line Items]
Realized Gain (Loss) on Derivatives	0	(108)	0
Unrealized Gain (Loss) on Derivatives	0	0	0
Foreign Currency Options | Long Contracts / Purchased
Derivative [Line Items]
Realized Gain (Loss) on Derivatives	0	5,138	(6,716)
Unrealized Gain (Loss) on Derivatives	0	0	1,164
Foreign Currency Options | Short Contracts / Sold
Derivative [Line Items]
Realized Gain (Loss) on Derivatives	0	(771)	2,183
Unrealized Gain (Loss) on Derivatives	0	0	(80)
Credit Default Swap [Member]
Derivative [Line Items]
Realized Gain (Loss) on Derivatives	0	3,486	72
Unrealized Gain (Loss) on Derivatives	0	(2,000)	2,000
Embedded derivatives in reinsurance contracts
Derivative [Line Items]
Derivative liabilities, at fair value	31	22
Derivative liabilities, notional amount	20,000	20,000
Realized Gain (Loss) on Derivatives	0	0	0
Unrealized Gain (Loss) on Derivatives	(9)	149	(79)
Derivative liabilities (embedded)
Derivative [Line Items]
Derivative liabilities, at fair value	31	22
Derivative liabilities, notional amount	20,000	20,000
Realized Gain (Loss) on Derivatives	0	0	0
Unrealized Gain (Loss) on Derivatives	(9)	149	(79)
Index Futures | Long Contracts / Purchased
Derivative [Line Items]
Realized Gain (Loss) on Derivatives	0	403	0
Unrealized Gain (Loss) on Derivatives	0	0	0
Index Futures | Short Contracts / Sold
Derivative [Line Items]
Realized Gain (Loss) on Derivatives	0	50	0
Unrealized Gain (Loss) on Derivatives	0	0	0
Sovereign Futures [Member] | Long Contracts / Purchased
Derivative [Line Items]
Realized Gain (Loss) on Derivatives	0	639	0
Unrealized Gain (Loss) on Derivatives	0	0	0
Sovereign Debt Futures | Short Contracts / Sold
Derivative [Line Items]
Realized Gain (Loss) on Derivatives	0	(1,166)	(7,798)
Unrealized Gain (Loss) on Derivatives	0	0	647
Total Return Swap [Member] | Long Contracts / Purchased
Derivative [Line Items]
Realized Gain (Loss) on Derivatives	0	(7,569)	0
Unrealized Gain (Loss) on Derivatives	$ 0	$ 0	$ 0

Loss and loss adjustment expe_3

Loss and loss adjustment expense reserves - Schedule of loss and loss adjustment expense reserves (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Insurance Loss Reserves [Abstract]
Case loss and loss adjustment expense reserves	$ 148,166	$ 125,456
Incurred but not reported loss and loss adjustment expense reserves	963,359	811,280
Deferred gains on retroactive reinsurance contracts	167	421
Loss and loss adjustment expense reserves	$ 1,111,692	$ 937,157

Loss and loss adjustment expe_4

Loss and loss adjustment expense reserves - Schedule of activity in the reserve for losses and loss adjustment expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Gross reserves for loss and loss adjustment expenses, beginning of year	$ 937,157	$ 720,570	$ 605,129
Less: loss and loss adjustment expenses recoverable, beginning of year	(5,520)	(2,031)	(1,113)	$ (5,520)	$ (2,031)	$ (1,113)	$ (1)
Net reserves for loss and loss adjustment expenses, beginning of year				1,099,434	931,279	719,457	605,128
Increase (decrease) in net loss and loss adjustment expenses incurred in respect of losses occurring in:
Current year	489,994	434,276	422,801
Prior years	86,495	(4,138)	52,743
Total incurred loss and loss adjustment expenses	403,499	438,414	370,058
Net loss and loss adjustment expenses paid in respect of losses occurring in:
Current year	(63,638)	(85,173)	(110,799)
Prior years	(188,392)	(132,336)	(162,447)
Total net paid losses	(252,030)	(217,509)	(273,246)
Foreign currency translation	16,686	(9,083)	17,517
Net reserves for loss and loss adjustment expenses, beginning of year				1,099,434	931,279	719,457	605,128
Plus: loss and loss adjustment expenses recoverable, end of year	(5,520)	(2,031)	(1,113)
Deferred Costs				$ (6,738)	$ (3,847)	$ 0	$ 0
Gross reserves for loss and loss adjustment expenses, end of year	1,111,692	937,157	720,570
Prior Year Claims and Claims Adjustment Expense, Including Amortization of Deferred Gains	86,500	(4,100)	52,700
Impact On Underwriting Income [Member]
Net loss and loss adjustment expenses paid in respect of losses occurring in:
Prior Year Claims and Claims Adjustment Expense, Increase (Decrease) in Net Underwriting Loss	3,700	6,200	4,600
Ratio Split [Member]
Increase (decrease) in net loss and loss adjustment expenses incurred in respect of losses occurring in:
Prior years	98,500	12,900	22,300
Net loss and loss adjustment expenses paid in respect of losses occurring in:
Change In Policy Acquisition Costs	(100,900)	(7,700)	(19,800)
Prior Year Claims and Claims Adjustment Expense, Increase (Decrease) in Earned Premium	(7,800)
Prior Year Claims and Claims Adjustment Expense, Increase (Decrease) in Net Underwriting Loss	5,400	5,200	2,500
Premium Adjustments on Certain Contracts [Member]
Increase (decrease) in net loss and loss adjustment expenses incurred in respect of losses occurring in:
Prior years	(12,000)	(17,000)	30,400
Net loss and loss adjustment expenses paid in respect of losses occurring in:
Change in Accounting Estimate, Financial Impact	(4,800)	(22,400)	52,100
Change In Policy Acquisition Costs	7,200	(5,400)	21,700
Prior Year Claims and Claims Adjustment Expense, Increase (Decrease) in Premium Estimates	3,100	23,400	(50,000)
Prior Year Claims and Claims Adjustment Expense, Increase (Decrease) in Net Underwriting Loss	(1,700)	1,000	2,100
Auto contracts [Member] | Ratio Split [Member]
Net loss and loss adjustment expenses paid in respect of losses occurring in:
Prior Year Claims and Claims Adjustment Expense, Increase (Decrease) in Net Underwriting Loss	3,500		(4,600)
Retroactive reinsurance contracts | Ratio Split [Member]
Increase (decrease) in net loss and loss adjustment expenses incurred in respect of losses occurring in:
Prior years	69,400
Net loss and loss adjustment expenses paid in respect of losses occurring in:
Change In Policy Acquisition Costs	(68,900)
Prior Year Claims and Claims Adjustment Expense, Increase (Decrease) in Net Underwriting Loss	500
Other Contracts [Member] | Ratio Split [Member]
Net loss and loss adjustment expenses paid in respect of losses occurring in:
Prior Year Claims and Claims Adjustment Expense, Increase (Decrease) in Net Underwriting Loss		(10,500)	1,300
Multi-line | Ratio Split [Member]
Net loss and loss adjustment expenses paid in respect of losses occurring in:
Prior Year Claims and Claims Adjustment Expense, Increase (Decrease) in Net Underwriting Loss	(8,100)
Workers’ Compensation | Ratio Split [Member]
Net loss and loss adjustment expenses paid in respect of losses occurring in:
Prior Year Claims and Claims Adjustment Expense, Increase (Decrease) in Net Underwriting Loss	14,900	$ 15,800	$ 5,800
General Liability [Member] | Ratio Split [Member]
Net loss and loss adjustment expenses paid in respect of losses occurring in:
Prior Year Claims and Claims Adjustment Expense, Increase (Decrease) in Net Underwriting Loss	$ (8,800)

Loss and loss adjustment expe_5

Loss and loss adjustment expense reserves Loss and loss adjustment expense reserves (claims development triangles) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Claims Development [Line Items]
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	$ 1,099,434
Multi-line
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	624,836
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	269,068
Cumulative net losses and loss adjustment expenses paid	338,068
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	286,768
Multi-line | Accident Year 2012
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0	0	0
Multi-line | Accident Year 2013
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	4,564	4,564	4,564	4,564	4,564	4,272	9
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	4,563	4,563	4,563	4,563	4,563	1,243	0
Multi-line | Accident Year 2014
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	37,759	37,547	35,747	40,095	35,651	47,493
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	16,870
Cumulative net losses and loss adjustment expenses paid	20,822	20,536	18,803	20,782	14,242	1,179
Multi-line | Accident Year 2015
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	116,499	107,292	106,957	108,581	86,003
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	37,445
Cumulative net losses and loss adjustment expenses paid	78,443	76,564	73,844	65,309	30,620
Multi-line | Accident Year 2016
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	124,262	116,702	120,774	119,902
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	35,944
Cumulative net losses and loss adjustment expenses paid	87,192	84,047	76,034	30,640
Multi-line | Accident Year 2017
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	110,994	107,485	100,304
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	30,137
Cumulative net losses and loss adjustment expenses paid	79,660	74,191	53,789
Multi-line | Accident Year 2018
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	101,510	90,463
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	43,334
Cumulative net losses and loss adjustment expenses paid	48,060	30,497
Multi-line | Short-duration Insurance Contracts, Accident Year 2019 [Member]
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	129,248
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	105,338
Cumulative net losses and loss adjustment expenses paid	19,328
Credit & Financial Lines
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	47,464
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	26,552
Cumulative net losses and loss adjustment expenses paid	15,768
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	31,696
Credit & Financial Lines | Accident Year 2012
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0	0	0
Credit & Financial Lines | Accident Year 2013
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	80	77	99	107	113	408	364
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	2
Cumulative net losses and loss adjustment expenses paid	77	77	78	74	66	11	0
Credit & Financial Lines | Accident Year 2014
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	1,454	1,384	2,203	2,416	2,643	5,774
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	95
Cumulative net losses and loss adjustment expenses paid	1,344	1,322	1,318	1,038	784	42
Credit & Financial Lines | Accident Year 2015
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	3,127	4,007	4,752	5,032	5,234
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	517
Cumulative net losses and loss adjustment expenses paid	2,503	2,328	2,045	1,128	402
Credit & Financial Lines | Accident Year 2016
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	6,560	10,816	10,721	10,726
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	1,751
Cumulative net losses and loss adjustment expenses paid	4,196	3,419	2,326	1,013
Credit & Financial Lines | Accident Year 2017
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	7,313	13,773	13,740
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	3,364
Cumulative net losses and loss adjustment expenses paid	3,031	2,332	1,100
Credit & Financial Lines | Accident Year 2018
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	10,940	17,715
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	6,482
Cumulative net losses and loss adjustment expenses paid	2,717	897
Credit & Financial Lines | Short-duration Insurance Contracts, Accident Year 2019 [Member]
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	17,990
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	14,341
Cumulative net losses and loss adjustment expenses paid	1,900
Other Casualty
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	397,761
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	270,429
Cumulative net losses and loss adjustment expenses paid	71,410
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	326,351
Other Casualty | Accident Year 2012
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0	0	0
Other Casualty | Accident Year 2013
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0	0
Other Casualty | Accident Year 2014
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	5,849	5,584	4,903	7,316	7,519	5,480
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	1,302
Cumulative net losses and loss adjustment expenses paid	3,685	3,104	2,226	1,390	340	16
Other Casualty | Accident Year 2015
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	38,970	37,113	33,396	48,315	45,558
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	10,435
Cumulative net losses and loss adjustment expenses paid	20,550	15,781	9,053	3,612	310
Other Casualty | Accident Year 2016
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	56,774	54,990	52,118	63,082
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	23,647
Cumulative net losses and loss adjustment expenses paid	20,783	13,467	6,165	621
Other Casualty | Accident Year 2017
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	75,334	71,091	70,158
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	48,072
Cumulative net losses and loss adjustment expenses paid	12,798	6,231	1,418
Other Casualty | Accident Year 2018
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	124,859	120,553
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	99,737
Cumulative net losses and loss adjustment expenses paid	9,968	1,674
Other Casualty | Short-duration Insurance Contracts, Accident Year 2019 [Member]
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	95,975
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	87,236
Cumulative net losses and loss adjustment expenses paid	3,626
Non-Standard Auto Contract [Member]
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	433,001
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	14,526
Cumulative net losses and loss adjustment expenses paid	406,534
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	26,467
Non-Standard Auto Contract [Member] | Accident Year 2012
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	11,349	11,356	11,333	11,433	11,534	11,777	12,264	13,247
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	11,349	11,348	11,318	11,382	11,450	11,387	9,989	5,619
Non-Standard Auto Contract [Member] | Accident Year 2013
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	19,489	19,534	19,483	19,338	19,472	19,990	20,830
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	7
Cumulative net losses and loss adjustment expenses paid	19,479	19,463	19,363	19,066	18,686	17,244	8,673
Non-Standard Auto Contract [Member] | Accident Year 2014
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	103,623	103,822	103,661	103,568	103,473	104,896
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	53
Cumulative net losses and loss adjustment expenses paid	103,515	103,379	102,868	101,626	97,651	45,766
Non-Standard Auto Contract [Member] | Accident Year 2015
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	89,241	89,459	89,550	88,705	82,677
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	119
Cumulative net losses and loss adjustment expenses paid	88,630	88,168	86,100	80,765	42,451
Non-Standard Auto Contract [Member] | Accident Year 2016
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	86,511	86,434	85,903	77,785
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	343
Cumulative net losses and loss adjustment expenses paid	85,027	82,556	77,511	38,059
Non-Standard Auto Contract [Member] | Accident Year 2017
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	50,698	50,793	48,682
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	809
Cumulative net losses and loss adjustment expenses paid	48,665	45,196	23,546
Non-Standard Auto Contract [Member] | Accident Year 2018
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	43,039	45,145
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	1,602
Cumulative net losses and loss adjustment expenses paid	38,918	21,182
Non-Standard Auto Contract [Member] | Short-duration Insurance Contracts, Accident Year 2019 [Member]
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	29,051
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	11,593
Cumulative net losses and loss adjustment expenses paid	10,951
Workers’ Compensation
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	228,349
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	47,466
Cumulative net losses and loss adjustment expenses paid	145,318
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	83,031
Workers’ Compensation | Accident Year 2012
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	5,938	5,874	5,720	5,715	5,596	5,066	4,534	4,037
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	6
Cumulative net losses and loss adjustment expenses paid	5,347	5,110	4,796	4,969	4,280	3,017	624	93
Workers’ Compensation | Accident Year 2013
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	32,741	33,067	33,252	33,449	33,365	28,616	27,449
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	286
Cumulative net losses and loss adjustment expenses paid	30,377	29,082	26,956	22,826	16,840	9,142	2,587
Workers’ Compensation | Accident Year 2014
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	41,115	42,037	43,470	47,200	46,568	40,247
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	1,699
Cumulative net losses and loss adjustment expenses paid	36,262	34,112	29,573	24,280	15,947	4,073
Workers’ Compensation | Accident Year 2015
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	31,116	32,529	34,800	37,138	35,749
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	2,723
Cumulative net losses and loss adjustment expenses paid	24,942	22,432	17,001	10,755	2,669
Workers’ Compensation | Accident Year 2016
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	31,047	36,475	39,205	40,433
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	4,159
Cumulative net losses and loss adjustment expenses paid	21,754	18,346	13,236	3,985
Workers’ Compensation | Accident Year 2017
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	34,453	40,459	41,075
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	9,205
Cumulative net losses and loss adjustment expenses paid	16,908	11,868	4,586
Workers’ Compensation | Accident Year 2018
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	25,050	27,753
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	10,630
Cumulative net losses and loss adjustment expenses paid	7,089	2,552
Workers’ Compensation | Short-duration Insurance Contracts, Accident Year 2019 [Member]
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	26,889
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	18,758
Cumulative net losses and loss adjustment expenses paid	2,639
Other Property
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	329,464
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	48,863
Cumulative net losses and loss adjustment expenses paid	269,327
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	60,137
Other Property | Accident Year 2012
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	9,490	9,501	9,472	9,416	9,353	9,375	8,672	10,917
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	9,483	9,482	9,400	9,352	9,186	9,075	8,381	4,656
Other Property | Accident Year 2013
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	26,051	26,170	25,785	25,882	25,766	24,980	27,765
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	7
Cumulative net losses and loss adjustment expenses paid	25,993	25,815	25,406	25,167	24,023	22,229	14,635
Other Property | Accident Year 2014
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	46,303	46,500	44,627	41,336	40,920	40,256
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	725
Cumulative net losses and loss adjustment expenses paid	45,312	44,533	42,775	38,448	34,381	19,420
Other Property | Accident Year 2015
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	56,201	56,313	54,635	52,533	50,330
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	1,533
Cumulative net losses and loss adjustment expenses paid	53,924	51,783	48,360	43,382	22,706
Other Property | Accident Year 2016
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	43,733	43,799	43,038	45,415
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	2,906
Cumulative net losses and loss adjustment expenses paid	39,651	37,044	31,871	21,593
Other Property | Accident Year 2017
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	41,753	41,833	41,237
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	3,120
Cumulative net losses and loss adjustment expenses paid	37,171	33,436	24,713
Other Property | Accident Year 2018
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	52,343	54,084
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	14,267
Cumulative net losses and loss adjustment expenses paid	35,169	26,458
Other Property | Short-duration Insurance Contracts, Accident Year 2019 [Member]
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	53,590
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	26,305
Cumulative net losses and loss adjustment expenses paid	22,624
Other Property
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	39,251
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	38,529
Cumulative net losses and loss adjustment expenses paid	470
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	38,781
Other Property | Accident Year 2012
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0	0	0
Other Property | Accident Year 2013
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0	0
Other Property | Accident Year 2014
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0
Other Property | Accident Year 2015
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0
Other Property | Accident Year 2016
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0
Other Property | Accident Year 2017
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0
Other Property | Accident Year 2018
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0
Other Property | Short-duration Insurance Contracts, Accident Year 2019 [Member]
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	39,251
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	38,529
Cumulative net losses and loss adjustment expenses paid	470
Other Specialty
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	93,898
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	11,069
Cumulative net losses and loss adjustment expenses paid	77,554
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	16,344
Other Specialty | Accident Year 2012
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	50,104	50,104	50,104	50,065	50,055	50,055	49,942	52,105
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	50,103	50,103	50,103	50,067	50,025	50,024	48,455	$ 2,666
Other Specialty | Accident Year 2013
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	23,125	23,138	23,135	23,138	23,450	24,274	25,582
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	23,127	23,137	23,135	23,134	23,138	22,232	0
Other Specialty | Accident Year 2014
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0
Other Specialty | Accident Year 2015
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0
Other Specialty | Accident Year 2016
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	730	812	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	691
Cumulative net losses and loss adjustment expenses paid	0	0	0	0
Other Specialty | Accident Year 2017
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	4,025	3,544	4,033
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	447
Cumulative net losses and loss adjustment expenses paid	575	261	4
Other Specialty | Accident Year 2018
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	6,866	6,213
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	2,573
Cumulative net losses and loss adjustment expenses paid	2,109	957
Other Specialty | Short-duration Insurance Contracts, Accident Year 2019 [Member]
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	9,048
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	7,358
Cumulative net losses and loss adjustment expenses paid	1,640
Contracts incepting in 2018 [Member] | Retroactive Reinsurance Contract [Member]
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	67,151
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	1,835
Cumulative net losses and loss adjustment expenses paid	65,316
Short Duration Insurance Contracts, Liability For Unpaid Claims And Allocated Claims Adjustment Expense, Net, Separately Presented	1,835
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net, Not Separately Presented	208
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	2,043
Contracts incepting in 2018 [Member] | Retroactive Reinsurance Contract [Member] | Accident Year 2010
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	147	221
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	140
Cumulative net losses and loss adjustment expenses paid	7	0
Contracts incepting in 2018 [Member] | Retroactive Reinsurance Contract [Member] | Accident Year 2011
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	131	200
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	128
Cumulative net losses and loss adjustment expenses paid	3	0
Contracts incepting in 2018 [Member] | Retroactive Reinsurance Contract [Member] | Accident Year 2012
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	367	442
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	103
Cumulative net losses and loss adjustment expenses paid	264	0
Contracts incepting in 2018 [Member] | Retroactive Reinsurance Contract [Member] | Accident Year 2013
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	2,007	2,230
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	148
Cumulative net losses and loss adjustment expenses paid	1,859	0
Contracts incepting in 2018 [Member] | Retroactive Reinsurance Contract [Member] | Accident Year 2014
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	5,288	5,809
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	241
Cumulative net losses and loss adjustment expenses paid	5,047	0
Contracts incepting in 2018 [Member] | Retroactive Reinsurance Contract [Member] | Accident Year 2015
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	11,692	12,754
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	331
Cumulative net losses and loss adjustment expenses paid	11,361	0
Contracts incepting in 2018 [Member] | Retroactive Reinsurance Contract [Member] | Accident Year 2016
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	17,871	19,431
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	364
Cumulative net losses and loss adjustment expenses paid	17,507	0
Contracts incepting in 2018 [Member] | Retroactive Reinsurance Contract [Member] | Accident Year 2017
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	15,889	17,257
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	279
Cumulative net losses and loss adjustment expenses paid	15,610	0
Contracts incepting in 2018 [Member] | Retroactive Reinsurance Contract [Member] | Accident Year 2018
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	13,759	14,880
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	101
Cumulative net losses and loss adjustment expenses paid	13,658	0
Contracts incepting in 2018 [Member] | Retroactive Reinsurance Contract [Member] | Short-duration Insurance Contracts, Accident Year 2019 [Member]
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0
Contracts incepting in 2017 | Retroactive Reinsurance Contract [Member]
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	61,952
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	61,952
Cumulative net losses and loss adjustment expenses paid	0
Short Duration Insurance Contracts, Liability For Unpaid Claims And Allocated Claims Adjustment Expense, Net, Separately Presented	61,952
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net, Not Separately Presented	256
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	62,208
Contracts incepting in 2017 | Retroactive Reinsurance Contract [Member] | Accident Year 2010
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	237	371	442
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	237
Cumulative net losses and loss adjustment expenses paid	0	0	0
Contracts incepting in 2017 | Retroactive Reinsurance Contract [Member] | Accident Year 2011
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	966	1,567	1,648
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	966
Cumulative net losses and loss adjustment expenses paid	0	0	0
Contracts incepting in 2017 | Retroactive Reinsurance Contract [Member] | Accident Year 2012
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	1,295	2,110	2,185
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	1,295
Cumulative net losses and loss adjustment expenses paid	0	0	0
Contracts incepting in 2017 | Retroactive Reinsurance Contract [Member] | Accident Year 2013
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	2,000	3,264	3,358
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	2,000
Cumulative net losses and loss adjustment expenses paid	0	0	0
Contracts incepting in 2017 | Retroactive Reinsurance Contract [Member] | Accident Year 2014
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	5,768	9,453	9,582
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	5,768
Cumulative net losses and loss adjustment expenses paid	0	0	0
Contracts incepting in 2017 | Retroactive Reinsurance Contract [Member] | Accident Year 2015
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	7,570	12,398	12,597
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	7,570
Cumulative net losses and loss adjustment expenses paid	0	0	0
Contracts incepting in 2017 | Retroactive Reinsurance Contract [Member] | Accident Year 2016
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	14,397	23,617	23,854
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	14,397
Cumulative net losses and loss adjustment expenses paid	0	0	0
Contracts incepting in 2017 | Retroactive Reinsurance Contract [Member] | Accident Year 2017
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	29,719	48,888	48,877
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	29,719
Cumulative net losses and loss adjustment expenses paid	0	0	0
Contracts incepting in 2017 | Retroactive Reinsurance Contract [Member] | Accident Year 2018
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0
Contracts incepting in 2017 | Retroactive Reinsurance Contract [Member] | Short-duration Insurance Contracts, Accident Year 2019 [Member]
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0
Contracts incepting in 2015 | Retroactive Reinsurance Contract [Member]
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	41,849
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	41,849
Cumulative net losses and loss adjustment expenses paid	0
Short Duration Insurance Contracts, Liability For Unpaid Claims And Allocated Claims Adjustment Expense, Net, Separately Presented	41,849
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net, Not Separately Presented	1,757
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	43,606
Contracts incepting in 2015 | Retroactive Reinsurance Contract [Member] | Accident Year 2010
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	2,225	3,561	3,932	5,324	5,324
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	2,225
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0
Contracts incepting in 2015 | Retroactive Reinsurance Contract [Member] | Accident Year 2011
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	4,509	7,318	7,703	10,165	10,165
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	4,509
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0
Contracts incepting in 2015 | Retroactive Reinsurance Contract [Member] | Accident Year 2012
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	6,817	11,132	11,470	14,952	14,952
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	6,817
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0
Contracts incepting in 2015 | Retroactive Reinsurance Contract [Member] | Accident Year 2013
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	8,432	13,779	14,162	18,435	18,435
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	8,432
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0
Contracts incepting in 2015 | Retroactive Reinsurance Contract [Member] | Accident Year 2014
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	18,953	31,098	31,500	40,654	40,654
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	18,953
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0
Contracts incepting in 2015 | Retroactive Reinsurance Contract [Member] | Accident Year 2015
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	913	1,395	1,788	2,596	2,596
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	913
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0
Contracts incepting in 2015 | Retroactive Reinsurance Contract [Member] | Accident Year 2016
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0
Contracts incepting in 2015 | Retroactive Reinsurance Contract [Member] | Accident Year 2017
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0
Contracts incepting in 2015 | Retroactive Reinsurance Contract [Member] | Accident Year 2018
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0
Contracts incepting in 2015 | Retroactive Reinsurance Contract [Member] | Short-duration Insurance Contracts, Accident Year 2019 [Member]
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0
Contracts incepting in 2014 | Retroactive Reinsurance Contract [Member]
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	18,045
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	18,045
Cumulative net losses and loss adjustment expenses paid	0
Short Duration Insurance Contracts, Liability For Unpaid Claims And Allocated Claims Adjustment Expense, Net, Separately Presented	18,045
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net, Not Separately Presented	0
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	18,045
Contracts incepting in 2014 | Retroactive Reinsurance Contract [Member] | Accident Year 2010
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0	444
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0
Contracts incepting in 2014 | Retroactive Reinsurance Contract [Member] | Accident Year 2011
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	1,529	2,884	3,252	3,057	3,455	4,239
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	1,529
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0
Contracts incepting in 2014 | Retroactive Reinsurance Contract [Member] | Accident Year 2012
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	4,778	9,011	10,162	9,553	10,794	12,173
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	4,778
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0
Contracts incepting in 2014 | Retroactive Reinsurance Contract [Member] | Accident Year 2013
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	7,493	14,132	15,938	14,982	16,929	18,907
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	7,493
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0
Contracts incepting in 2014 | Retroactive Reinsurance Contract [Member] | Accident Year 2014
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	4,245	8,005	9,028	8,487	9,590	10,700
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	4,245
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0
Contracts incepting in 2014 | Retroactive Reinsurance Contract [Member] | Accident Year 2015
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0
Contracts incepting in 2014 | Retroactive Reinsurance Contract [Member] | Accident Year 2016
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0
Contracts incepting in 2014 | Retroactive Reinsurance Contract [Member] | Accident Year 2017
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0
Contracts incepting in 2014 | Retroactive Reinsurance Contract [Member] | Accident Year 2018
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0
Contracts incepting in 2014 | Retroactive Reinsurance Contract [Member] | Short-duration Insurance Contracts, Accident Year 2019 [Member]
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0
Contracts incepting in 2013 | Retroactive Reinsurance Contract [Member]
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	16,509
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	16,509
Short Duration Insurance Contracts, Liability For Unpaid Claims And Allocated Claims Adjustment Expense, Net, Separately Presented	0
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net, Not Separately Presented	9,524
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	9,524
Contracts incepting in 2013 | Retroactive Reinsurance Contract [Member] | Accident Year 2010
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	704	704	704	704	704	704	914
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	704	704	704	704	704	279	0
Contracts incepting in 2013 | Retroactive Reinsurance Contract [Member] | Accident Year 2011
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	4,173	4,173	4,173	4,173	4,173	4,173	5,419
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	4,173	4,173	4,173	4,173	4,173	1,654	0
Contracts incepting in 2013 | Retroactive Reinsurance Contract [Member] | Accident Year 2012
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	7,853	7,853	7,853	7,853	7,853	7,853	10,197
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	7,853	7,853	7,853	7,853	7,853	3,113	0
Contracts incepting in 2013 | Retroactive Reinsurance Contract [Member] | Accident Year 2013
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	3,779	3,779	3,779	3,779	3,779	3,779	4,908
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	3,779	3,779	3,779	3,779	3,779	1,498	0
Contracts incepting in 2013 | Retroactive Reinsurance Contract [Member] | Accident Year 2014
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0	0
Contracts incepting in 2013 | Retroactive Reinsurance Contract [Member] | Accident Year 2015
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0	0
Contracts incepting in 2013 | Retroactive Reinsurance Contract [Member] | Accident Year 2016
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0	0
Contracts incepting in 2013 | Retroactive Reinsurance Contract [Member] | Accident Year 2017
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0	0
Contracts incepting in 2013 | Retroactive Reinsurance Contract [Member] | Accident Year 2018
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	0	0	0	0	0	0
Contracts incepting in 2013 | Retroactive Reinsurance Contract [Member] | Short-duration Insurance Contracts, Accident Year 2019 [Member]
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	0	0	0	0	0	0	0
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	0
Cumulative net losses and loss adjustment expenses paid	0	$ 0	$ 0	$ 0	$ 0	$ 0	$ 0
Contracts incepting in 2019 [Member] | Retroactive Reinsurance Contract [Member]
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	92,790
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	92,790
Cumulative net losses and loss adjustment expenses paid	0
Short Duration Insurance Contracts, Liability For Unpaid Claims And Allocated Claims Adjustment Expense, Net, Separately Presented	92,790
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net, Not Separately Presented	1,643
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	94,433
Contracts incepting in 2019 [Member] | Retroactive Reinsurance Contract [Member] | Accident Year 2010
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	945
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	945
Cumulative net losses and loss adjustment expenses paid	0
Contracts incepting in 2019 [Member] | Retroactive Reinsurance Contract [Member] | Accident Year 2011
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	2,064
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	2,064
Cumulative net losses and loss adjustment expenses paid	0
Contracts incepting in 2019 [Member] | Retroactive Reinsurance Contract [Member] | Accident Year 2012
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	1,211
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	1,211
Cumulative net losses and loss adjustment expenses paid	0
Contracts incepting in 2019 [Member] | Retroactive Reinsurance Contract [Member] | Accident Year 2013
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	1,983
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	1,983
Cumulative net losses and loss adjustment expenses paid	0
Contracts incepting in 2019 [Member] | Retroactive Reinsurance Contract [Member] | Accident Year 2014
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	4,328
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	4,328
Cumulative net losses and loss adjustment expenses paid	0
Contracts incepting in 2019 [Member] | Retroactive Reinsurance Contract [Member] | Accident Year 2015
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	6,197
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	6,197
Cumulative net losses and loss adjustment expenses paid	0
Contracts incepting in 2019 [Member] | Retroactive Reinsurance Contract [Member] | Accident Year 2016
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	10,858
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	10,858
Cumulative net losses and loss adjustment expenses paid	0
Contracts incepting in 2019 [Member] | Retroactive Reinsurance Contract [Member] | Accident Year 2017
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	12,908
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	12,908
Cumulative net losses and loss adjustment expenses paid	0
Contracts incepting in 2019 [Member] | Retroactive Reinsurance Contract [Member] | Accident Year 2018
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	16,769
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	16,769
Cumulative net losses and loss adjustment expenses paid	0
Contracts incepting in 2019 [Member] | Retroactive Reinsurance Contract [Member] | Short-duration Insurance Contracts, Accident Year 2019 [Member]
Claims Development [Line Items]
Loss and loss adjustment expenses incurred, net	35,527
Short-duration Insurance Contracts, Incurred but Not Reported (IBNR) Claims Liability, Net	35,527
Cumulative net losses and loss adjustment expenses paid	$ 0

Loss and loss adjustment expe_6

Loss and loss adjustment expense reserves Loss and loss adjustment expense reserves (reconciliation of loss development information to reserves for loss and loss adjustment expense reserves) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	$ 1,099,434
Loss and loss adjustment expenses recoverable	5,520	$ 2,031	$ 1,113	$ 1
Deferred Costs	6,738	3,847	0	0
Deferred gains on retroactive reinsurance contracts	167	421
Liability for Claims and Claims Adjustment Expense	1,111,692	$ 937,157	$ 720,570	$ 605,129
Other Property
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	329,464
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	269,327
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	60,137
Workers’ Compensation
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	228,349
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	145,318
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	83,031
Credit & Financial Lines
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	47,464
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	15,768
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	31,696
Multi-line
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	624,836
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	338,068
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	286,768
Other Specialty
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	93,898
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	77,554
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	16,344
Non-Standard Auto Contract [Member]
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	433,001
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	406,534
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	26,467
Other Casualty
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	397,761
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	71,410
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	326,351
Contracts incepting in 2012 | Retroactive Reinsurance Contract [Member]
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	0
Contracts incepting in 2016 [Member] | Retroactive Reinsurance Contract [Member]
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	0
Contracts incepting in 2013 | Retroactive Reinsurance Contract [Member]
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	16,509
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	16,509
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	9,524
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net, Not Separately Presented	9,524
Contracts incepting in 2017 | Retroactive Reinsurance Contract [Member]
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	61,952
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	0
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	62,208
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net, Not Separately Presented	256
Contracts incepting in 2014 | Retroactive Reinsurance Contract [Member]
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	18,045
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	0
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	18,045
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net, Not Separately Presented	0
Contracts incepting in 2015 | Retroactive Reinsurance Contract [Member]
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	41,849
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	0
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	43,606
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net, Not Separately Presented	1,757
Contracts incepting in 2018 | Retroactive Reinsurance Contract [Member]
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	67,151
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	65,316
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	2,043
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net, Not Separately Presented	208
Contracts incepting in 2019 [Member] | Retroactive Reinsurance Contract [Member]
Short-duration Insurance Contracts, Reconciliation of Claims Development to Liability [Line Items]
Short-duration Insurance Contracts, Incurred Claims and Allocated Claim Adjustment Expense, Net	92,790
Short-duration Insurance Contracts, Cumulative Paid Claims and Allocated Claim Adjustment Expense, Net	0
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net	94,433
Short-duration Insurance Contracts, Liability for Unpaid Claims and Allocated Claim Adjustment Expense, Net, Not Separately Presented	$ 1,643

Loss and loss adjustment expe_7

Loss and loss adjustment expense reserves - Schedule of payout percentage on losses (Details)	Dec. 31, 2019
Other Property
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Year 1	1.20%
Year 2	0.00%
Year 3	0.00%
Year 4	0.00%
Year 5	0.00%
Year 6	0.00%
Year 7	0.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight	0.00%
Other Property
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Year 1	48.60%
Year 2	28.40%
Year 3	8.80%
Year 4	5.40%
Year 5	2.60%
Year 6	1.30%
Year 7	0.80%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight	0.00%
Workers’ Compensation
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Year 1	9.30%
Year 2	21.80%
Year 3	22.50%
Year 4	16.20%
Year 5	10.80%
Year 6	2.90%
Year 7	4.60%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight	4.00%
Auto
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Year 1	45.40%
Year 2	43.60%
Year 3	7.00%
Year 4	1.80%
Year 5	0.50%
Year 6	0.00%
Year 7	0.20%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight	0.00%
Other Casualty
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Year 1	1.50%
Year 2	7.40%
Year 3	13.40%
Year 4	14.80%
Year 5	13.60%
Year 6	9.90%
Year 7	0.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight	0.00%
Credit & Financial Lines
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Year 1	9.30%
Year 2	23.60%
Year 3	28.50%
Year 4	12.70%
Year 5	3.60%
Year 6	0.10%
Year 7	(0.30%)
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight	0.00%
Multi-line
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Year 1	21.10%
Year 2	27.30%
Year 3	21.80%
Year 4	(0.10%)
Year 5	2.10%
Year 6	0.40%
Year 7	0.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight	0.00%
Other Specialty
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Year 1	6.20%
Year 2	42.10%
Year 3	3.70%
Year 4	0.00%
Year 5	0.00%
Year 6	0.00%
Year 7	0.00%
Short-duration Insurance Contracts, Historical Claims Duration, Year Eight	0.00%
Contracts incepting in 2013 | Retroactive reinsurance contracts
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Year 1	4.40%
Year 2	23.90%
Year 3	31.70%
Year 4	4.70%
Year 5	3.50%
Year 6	2.60%
Year 7	3.30%
Contracts incepting in 2014 | Retroactive reinsurance contracts
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Year 1	0.00%
Year 2	0.00%
Year 3	0.00%
Year 4	0.00%
Year 5	0.00%
Year 6	0.00%
Contracts incepting in 2015 | Retroactive reinsurance contracts
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Year 1	0.00%
Year 2	0.00%
Year 3	0.00%
Year 4	0.00%
Year 5	0.00%
Contracts incepting in 2017 | Retroactive reinsurance contracts
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Year 1	0.00%
Year 2	0.00%
Year 3	0.00%
Contracts incepting in 2018 | Retroactive reinsurance contracts
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Year 1	0.00%
Year 2	97.00%
Contracts incepting in 2019 [Member] | Retroactive reinsurance contracts
Short-duration Insurance Contracts, Historical Claims Duration [Line Items]
Year 1	0.00%

Reinsurance premiums ceded (Det

Reinsurance premiums ceded (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Reinsurance premiums ceded [Abstract]
Ceded to other companies	$ 5,964	$ 1,116	$ 1,473	$ 712	$ 1,770	$ 0	$ 3,479	$ 14,646	$ 9,265	$ 19,895	$ 2,475
Loss and loss adjustment expenses recoverable	$ 5,520				$ 2,031				$ 5,520	$ 2,031	$ 1,113	$ 1

Management, performance and f_3

Management, performance and founders fees (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Aug. 31, 2018
Related Party Transaction [Line Items]
Investment fee expenses	$ 0	$ 29,845	$ 130,711
Affiliate costs, gross of TP fund fees	19,556	37,221	130,711
Management and performance fees
Related Party Transaction [Line Items]
Investment fee expenses	0	29,845	130,711
Third Point LLC
Related Party Transaction [Line Items]
Annual Investment Management Fee				1.50%
Third Point LLC | Management and performance fees
Related Party Transaction [Line Items]
Investment fee expenses	$ 0	$ 25,797	36,733
TP Fund
Related Party Transaction [Line Items]
Annual investment performance fee	20.00%
Annual Investment Management Fee	1.25%	1.50%
Investment fee expenses	$ 67,026	$ 7,376	0
Third Point Advisors LLC
Related Party Transaction [Line Items]
Annual investment performance fee				20.00%
Third Point Advisors LLC [Member] | Management and performance fees
Related Party Transaction [Line Items]
Investment fee expenses	0	4,048	93,978
Performance fees - loss carryforward utilized
Related Party Transaction [Line Items]
Investment fee expenses	47,470	0
Performance fees - loss carryforward utilized | Management and performance fees
Related Party Transaction [Line Items]
Investment fee expenses			$ 0
Third Point Bermuda [Member]
Related Party Transaction [Line Items]
Loss Recovery Account Forfeitures	1,300
Loss Recovery Account	0	46,800
Third Point USA [Member]
Related Party Transaction [Line Items]
Loss Recovery Account Forfeitures	1,300
Loss Recovery Account	$ 500	$ 3,800

Deposit contracts (Details)

Deposit contracts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Deposit Contracts, Liabilities [Roll Forward]
Balance, beginning of year	$ 145,342	$ 129,133	$ 104,905
Consideration received	23,884	17,879	22,658
Consideration receivable	10,164	7,390	2,080
Net investment expense (income) allocation	5,879	(1,273)	2,800
Payments	(13,052)	(8,089)	(3,545)
Foreign currency translation	42	302	235
Balance, end of year	$ 172,259	$ 145,342	$ 129,133

Senior Notes payable and lett_3

Senior Notes payable and letter of credit facilities Senior Notes payable and letter of credit facilities (Details) - Unsecured Debt - 7% Senior Unsecured Notes - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Debt issued	$ 115
Interest rate	7.00%
Debt Issuance Costs, Net	$ 0.9
Debt instrument, fair value disclosure	$ 121.7	$ 114.7

Senior Notes payable and lett_4

Senior Notes payable and letter of credit facilities - Letters of credit (Details) - USD ($)	Dec. 31, 2019	Jul. 30, 2019
Letter of Credit
Line of Credit Facility [Line Items]
Issued	$ 251,837,000
Cash and Cash Equivalents	254,176,000
Letter of Credit | Unsecured facility [Member]
Line of Credit Facility [Line Items]
Committed Capacity		$ 200,000,000
Uncommitted, unsecured facility [Member]
Line of Credit Facility [Line Items]
Issued	187,135,000
Cash and Cash Equivalents	189,474,000
Committed, secured facility [Member]
Line of Credit Facility [Line Items]
Committed Capacity	225,000,000
Issued	64,702,000
Cash and Cash Equivalents	$ 64,702,000

Net investment income (Details)

Net investment income (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net Investment Income [Abstract]
Net realized gains (losses) on investments and investment derivatives									$ (5,850)	$ 446,646	$ 228,628
Net change in unrealized gains (losses) on investments and investment derivatives									8,381	(412,650)	251,496
Net gains (losses) on currencies									12,806	(7,305)	6,441
Dividend and interest income									18,551	53,523	65,896
Dividends paid on securities sold, not yet purchased									0	(5,259)	(5,724)
Other expenses									(954)	(15,696)	(24,073)
Management and performance fees to related parties (1)									0	(29,845)	(130,711)
Investment income, net, related party investment fund									249,626	(280,847)	0
Net investment income (loss)	$ 61,614	$ (3,138)	$ 69,131	$ 154,953	$ (276,810)	$ (3,590)	$ 31,175	$ (2,208)	$ 282,560	$ (251,433)	$ 391,953

Net investment income - by Type

Net investment income - by Type (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net Investment Income
Other investment income (expenses)									$ (954)	$ 903	$ (5,103)
Net investment income on derivative contracts									0	644	61,978
Net investment income (loss) on cash, including foreign exchange gain (loss)									24,676	(14,885)	(1,454)
Net investment losses on securities purchased under an agreement to sell and securities sold under an agreement to repurchase									0	(238)	(87)
Withholding taxes reclassified to income tax expense									0	(6,325)	(2,573)
Total other investment income (losses) and other expenses									23,722	(7,251)	57,907
Management and performance fees to related parties (1)									0	(29,845)	(130,711)
Net investment loss from investment in related party investment fund									249,626	(280,847)	0
Net investment income (loss)	$ 61,614	$ (3,138)	$ 69,131	$ 154,953	$ (276,810)	$ (3,590)	$ 31,175	$ (2,208)	282,560	(251,433)	391,953
Net investment income (loss) by asset type
Net Investment Income
Investment Income, Net									9,212	79,672	505,032
Real estate | Net investment income (loss) by asset type
Net Investment Income
Investment Income, Net									0	(186)	502
Total other investments | Net investment income (loss) by asset type
Net Investment Income
Investment Income, Net									0	(16,055)	(32,928)
Net investment income (loss) in funds valued at NAV, excluding TP Fund | Net investment income (loss) by asset type
Net Investment Income
Investment Income, Net									(6)	(723)	10,309
Options | Net investment income (loss) by asset type
Net Investment Income
Investment Income, Net									0	(15,527)	(33,510)
Options | Net investment income (loss) by liability type
Net Investment Income
Investment Income, Net									0	21,697	(2,907)
Rights and warrants | Net investment income (loss) by asset type
Net Investment Income
Investment Income, Net									0	238	169
Trade claims | Net investment income (loss) by asset type
Net Investment Income
Investment Income, Net									0	(580)	(89)
Total equities | Net investment income (loss) by asset type
Net Investment Income
Investment Income, Net									0	67,565	473,285
Total equities | Net investment income (loss) by liability type
Net Investment Income
Investment Income, Net									0	(13,162)	(40,275)
Equity securities | Net investment income (loss) by asset type
Net Investment Income
Investment Income, Net									0	70,646	467,527
Equity securities | Net investment income (loss) by liability type
Net Investment Income
Investment Income, Net									0	(32,407)	(35,643)
Private Common Equity Securities | Net investment income (loss) by asset type
Net Investment Income
Investment Income, Net									0	(401)	(6)
Private preferred equity securities | Net investment income (loss) by asset type
Net Investment Income
Investment Income, Net									0	(2,680)	5,764
Total debt securities | Net investment income (loss) by asset type
Net Investment Income
Investment Income, Net									9,218	28,885	54,366
Asset-backed securities | Net investment income (loss) by asset type
Net Investment Income
Investment Income, Net									0	20,714	12,571
Bank debt | Net investment income (loss) by asset type
Net Investment Income
Investment Income, Net									0	5,326	8,868
Corporate bonds | Net investment income (loss) by asset type
Net Investment Income
Investment Income, Net									0	(2,958)	6,462
Corporate bonds | Net investment income (loss) by liability type
Net Investment Income
Investment Income, Net									0	(2,452)	(1,725)
Municipal bonds | Net investment income (loss) by asset type
Net Investment Income
Investment Income, Net									0	9,990	0
U.S. Treasury securities | Net investment income (loss) by asset type
Net Investment Income
Investment Income, Net									8,703	2,787	2,366
Sovereign debt | Net investment income (loss) by asset type
Net Investment Income
Investment Income, Net									515	(7,380)	21,553
Other debt securities | Net investment income (loss) by asset type
Net Investment Income
Investment Income, Net									$ 0	$ 406	$ 2,546

Other expenses (Details)

Other expenses (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Other Income and Expenses [Abstract]
Investment expense (income) on deposit liabilities									$ 5,879	$ (1,273)	$ 2,800
Investment expense and change in fair value of embedded derivatives in reinsurance contracts									10,740	10,883	9,874
Other expenses	$ 3,625	$ 5,058	$ 3,811	$ 4,125	$ 2,994	$ (1,362)	$ 3,983	$ 3,995	$ 16,619	$ 9,610	$ 12,674

Income taxes - Narratives (Deta

Income taxes - Narratives (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Operating Loss Carryforwards [Line Items]
Uncertain tax positions	$ 1.5	$ 1.5
Operating loss carryforwards	$ 45.1
United States
Operating Loss Carryforwards [Line Items]
Effective tax rate	21.00%

Income taxes (Details)

Income taxes (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating Loss Carryforwards [Line Items]
Uncertain tax positions	$ 1,500				$ 1,500				$ 1,500	$ 1,500
Income tax (expense) benefit	$ (718)	$ (213)	$ (74)	$ 1,718	$ (8,417)	$ (111)	$ 4,390	$ 128	713	(4,010)	$ 11,976
Income tax expense (benefit) related to U.S. and U.K. subsidiaries
Operating Loss Carryforwards [Line Items]
Income tax (expense) benefit									713	(10,035)	9,248
Change in uncertain tax positions
Operating Loss Carryforwards [Line Items]
Income tax (expense) benefit									0	(300)	155
Withholding taxes on certain investment transactions
Operating Loss Carryforwards [Line Items]
Income tax (expense) benefit									$ 0	$ 6,325	$ 2,573

Income taxes - Location (Detail

Income taxes - Location (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating Loss Carryforwards [Line Items]
Income (loss) before income tax (expense) benefit	$ 29,020	$ (15,312)	$ 52,991	$ 134,633	$ (306,429)	$ (13,388)	$ 24,201	$ (25,863)	$ 201,332	$ (321,479)	$ 293,747
Bermuda
Operating Loss Carryforwards [Line Items]
Income (loss) before income tax (expense) benefit									$ 197,973	(273,697)	266,497
Effective tax rate									0.00%
United States
Operating Loss Carryforwards [Line Items]
Income (loss) before income tax (expense) benefit									$ 3,245	(47,771)	27,172
Effective tax rate									21.00%
United Kingdom
Operating Loss Carryforwards [Line Items]
Income (loss) before income tax (expense) benefit									$ 114	$ (11)	$ 78
Effective tax rate									19.00%

Income taxes - Reconciliation (

Income taxes - Reconciliation (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Operating Loss Carryforwards [Line Items]
Withholding taxes related to dividend and interest income									$ 0	$ 6,325	$ 2,573
Uncertain tax positions									0	(300)	155
Non-deductible expenses and other									10	(1)	(277)
Income tax expense (benefit)	$ (718)	$ (213)	$ (74)	$ 1,718	$ (8,417)	$ (111)	$ 4,390	$ 128	713	(4,010)	11,976
Bermuda
Operating Loss Carryforwards [Line Items]
Bermuda (expected tax expense at 0%)									0	0	0
United States
Operating Loss Carryforwards [Line Items]
Foreign location									681	(10,032)	9,510
United Kingdom
Operating Loss Carryforwards [Line Items]
Foreign location									$ 22	$ (2)	$ 15

Income taxes - Current and Defe

Income taxes - Current and Deferred (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Tax Disclosure [Abstract]
Current tax expense									$ 54	$ 6,025	$ 2,824
Deferred tax expense (benefit)									659	(10,035)	9,152
Income tax expense (benefit)	$ (718)	$ (213)	$ (74)	$ 1,718	$ (8,417)	$ (111)	$ 4,390	$ 128	$ 713	$ (4,010)	$ 11,976

Income taxes - Deferred Tax Ass

Income taxes - Deferred Tax Asset (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Deferred tax assets:
Discounting of loss and loss adjustment expense reserves	$ 786	$ 534	$ 330
Unearned premiums	1,774	1,567	1,634
Temporary differences in recognition of expenses	1,208	1,247	138
Net operating loss carryforward	9,282	6,798	7,048
Total deferred tax assets	13,050	10,146	9,150
Deferred tax liabilities:
Deferred acquisition costs	1,379	1,490	7,798
Unrealized gains (losses) on investments	3,366	(405)	2,435
Total deferred tax liabilities	4,745	1,085	10,233
Net deferred tax asset (liability)	$ 8,305	$ 9,061
Net deferred tax asset (liability)			$ (1,083)

Share capital - Common shares a

Share capital - Common shares and treasury shares (Details) - shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares issued, beginning of period	93,639,610	107,227,347	106,501,299
Treasury Stock, Shares, Retired	0	(14,256,043)	0
Stock Issued During Period, Shares, Conversion of Convertible Securities	0	361,556	0
Common shares issued, end of period	94,225,498	93,639,610	107,227,347
Balance, end of year	0	0	(3,944,920)
Common share, shares outstanding (in shares)	94,225,498	93,639,610	103,282,427
Stock Issued During Period, Shares, Conversion of Convertible Securities, Gross of Adjustments		1,156,184
Stock Issued During Period, Shares, Conversion of Convertible Securities, Adjustments		794,628
Management and director options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted	187,678	0	150,802
Restricted share awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted	366,453	50,644	(35,011)
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted	31,757	256,106	610,257

Share capital - Authorized and

Share capital - Authorized and issued (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018
Equity [Abstract]
Share capital authorized	$ 33,000,000
Common share, shares authorized (in shares)	300,000,000	300,000,000
Common Stock, Par or Stated Value Per Share	$ 0.10	$ 0.10
Preference shares, shares authorized (in shares)	30,000,000	30,000,000
Preference shares, par value (in dollars per share)	$ 0.10	$ 0.10
Preference shares, shares outstanding (in shares)	0	0

Share capital - Share repurchas

Share capital - Share repurchases (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Feb. 28, 2018	May 04, 2016
Share repurchase [Abstract]
Stock Repurchase Program, Authorized Amount			$ 200,000,000	$ 100,000,000
Stock Repurchase Program, Increase in Authorized Amount			$ 148,300,000
Stock Repurchased and Retired During Period, Shares		10,311,123
Payments for Repurchase of Common Stock	$ 0	$ 138,700,000
Treasury Stock Acquired, Average Cost Per Share		$ 13.45
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 61,300,000

Share capital - Warrants (Detai

Share capital - Warrants (Details)	12 Months Ended
	Dec. 31, 2019USD ($)$ / sharesshares
Class of Warrant or Right [Line Items]
Maximum percent of warrants reserved for issuance	4.00%
Maximum value of warrants reserved for issuance	$ 1,000,000,000
Exercise price (in dollars per share) | $ / shares	$ 10
Authorized and issued (in shares) | shares	3,494,979
Aggregated fair value of warrants	$ 13,055,000
Term of warrants	10 years
Founders
Class of Warrant or Right [Line Items]
Maximum percent of warrants reserved for issuance	3.50%
Exercise price (in dollars per share) | $ / shares	$ 10
Authorized and issued (in shares) | shares	2,913,684
Aggregated fair value of warrants	$ 10,884,000
Advisor
Class of Warrant or Right [Line Items]
Maximum percent of warrants reserved for issuance	0.50%
Exercise price (in dollars per share) | $ / shares	$ 10
Authorized and issued (in shares) | shares	581,295
Aggregated fair value of warrants	$ 2,171,000

Share-based compensation - Narr

Share-based compensation - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2015	Jul. 15, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized share compensation expense	$ 7.1	$ 7.4
Unamortized share compensation expense, period of recognition	1 year 6 months	1 year 4 months 24 days
Fair value assumptions
Aggregate intrinsic value of options outstanding	$ 2.4
Aggregate intrinsic value of options exercisable	2.4
Proceeds from stock options exercised	1.9	$ 0
Defined Contribution Plan, Administrative Expense	$ 0.9	$ 0.9	$ 0.8
Non-Employee Directors
Fair value assumptions
Restricted stock awards issued	67,291	50,644	36,418
Employees
Fair value assumptions
Restricted stock awards issued	336,069	0	0
Management and director options
Fair value assumptions
Remaining contractual life	2 years 2 months 12 days	3 years 2 months 12 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	2 years 2 months 12 days	3 years 2 months 12 days
Management and director options | Management
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Service condition met on each of first five anniversary dates following grant date	20.00%
Award vesting period	5 years
Restricted share awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period				3 years
Omnibus plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized (in shares)					21,627,906
Number of shares available for future issuance (in shares)	9,006,995	9,017,930

Share-based compensation - Sche

Share-based compensation - Schedule of share-based compensation expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized share compensation expense, period of recognition	1 year 6 months	1 year 4 months 24 days
Share compensation expense	$ 7,061	$ 4,956	$ 3,599
Restricted Stock Award, Forfeitures	0	0	900
Unamortized share compensation expense	$ 7,100	$ 7,400
Management and director options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Remaining contractual life	2 years 2 months 12 days	3 years 2 months 12 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	2 years 2 months 12 days	3 years 2 months 12 days
Allocated Share-based Compensation Expense	$ 0	$ 275	648
Restricted share awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	1,927	611	(331)
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated Share-based Compensation Expense	$ 5,134	$ 4,070	$ 3,282

Share-based compensation - Sc_2

Share-based compensation - Schedule of management and director options activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Number of options (in shares)
Outstanding (in shares)	8,888,053	8,888,053	9,596,993
Forfeited (in shares)	(393,717)	0	(558,138)
Exercised (in shares)	(187,678)	0	(150,802)
Outstanding (in shares)	8,306,658	8,888,053	8,888,053
Weighted average exercise price (in dollars per share)
Outstanding (in dollars per share)	$ 13.43	$ 13.43	$ 13.64
Forfeited (in dollars per share)	14.73	0	18
Exercised (in dollars per share)	10	0	10
Outstanding (in dollars per share)	$ 13.45	13.43	$ 13.43
Management and director options
Number of options (in shares)
Outstanding (in shares)	8,306,658
Weighted average exercise price (in dollars per share)
Outstanding (in dollars per share)	$ 13.45
Management and director options | $10.00 - $10.89
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower limit (in dollars per share)	$ 10	$ 10
Number of options (in shares)
Outstanding (in shares)	4,774,694
Weighted average exercise price (in dollars per share)
Outstanding (in dollars per share)	$ 10.04

Share-based compensation - Sc_3

Share-based compensation - Schedule of management and director options outstanding (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	$ 2.4
Aggregate intrinsic value of options exercisable	$ 2.4
Options outstanding (in shares)	8,306,658	8,888,053	8,888,053	9,596,993
Options outstanding, weighted average exercise price (in dollars per share)	$ 13.45	$ 13.43	$ 13.43	$ 13.64
Proceeds from stock options exercised	$ 1.9	$ 0
Management and director options
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options outstanding (in shares)	8,306,658
Options outstanding, weighted average exercise price (in dollars per share)	$ 13.45
Remaining contractual life	2 years 2 months 12 days	3 years 2 months 12 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term	2 years 2 months 12 days	3 years 2 months 12 days
Options exercisable (in shares)	8,306,658
Options exercisable, weighted average exercise price (in dollars per share)	$ 13.45
Management and director options | $10.00 - $10.89
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower limit (in dollars per share)	10	$ 10
Exercise price, upper limit (in dollars per share)	$ 10.89
Options outstanding (in shares)	4,774,694
Options outstanding, weighted average exercise price (in dollars per share)	$ 10.04
Remaining contractual life	2 years 1 month 6 days
Options exercisable (in shares)	4,774,694
Options exercisable, weighted average exercise price (in dollars per share)	$ 10.04
Management and director options | $15.05 - $16.89
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower limit (in dollars per share)	15.05
Exercise price, upper limit (in dollars per share)	$ 16.89
Options outstanding (in shares)	1,800,866
Options outstanding, weighted average exercise price (in dollars per share)	$ 15.92
Remaining contractual life	2 years 3 months 18 days
Options exercisable (in shares)	1,800,866
Options exercisable, weighted average exercise price (in dollars per share)	$ 15.92
Management and director options | $20.00 - $25.05
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Exercise price, lower limit (in dollars per share)	20
Exercise price, upper limit (in dollars per share)	$ 25.05
Options outstanding (in shares)	1,731,098
Options outstanding, weighted average exercise price (in dollars per share)	$ 20.28
Remaining contractual life	2 years 2 months 12 days
Options exercisable (in shares)	1,731,098
Options exercisable, weighted average exercise price (in dollars per share)	$ 20.28

Share-based compensation - Sc_4

Share-based compensation - Schedule of restricted share award activity (Details) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Issued During Period, Shares, Restricted Stock Award, Gross	336,069	0	0
Non-Employee Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Issued During Period, Shares, Restricted Stock Award, Gross	67,291	50,644	36,418
Restricted share awards
Number of non-vested restricted shares (in shares)
Outstanding, beginning of year (in shares)	24,065	18,209	301,043
Granted (in shares)	403,360	50,644	36,418
Forfeited (in shares)	(36,907)		(71,429)
Vested (in shares)	(49,751)	(44,788)	(247,823)
Outstanding, end of year (in shares)	340,767	24,065	18,209
Weighted average grant data fair value (in dollars per share)
Outstanding, beginning of year (in dollars per share)	$ 13.35	$ 12.15	$ 11.12
Granted (in dollars per share)	11.10	13.45	12.15
Forfeited (in dollars per share)	11.31		14
Vested (in dollars per share)	12.40	12.97	10.36
Outstanding, end of year (in dollars per share)	$ 11.83	$ 13.35	$ 12.15

Share-based compensation - Sc_5

Share-based compensation - Schedule of restricted shares with performance condition (Details) - Performance Shares - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Number of non-vested restricted shares (in shares)
Outstanding, beginning of year (in shares)	2,001,048	1,855,379	1,381,740
Granted (in shares)	862,176	556,403	935,825
Forfeited (in shares)	(823,977)	(294,977)	(325,568)
Vested (in shares)	(148,718)	(115,757)	(136,618)
Outstanding, end of year (in shares)	1,890,529	2,001,048	1,855,379
Number of non-vested restricted shares probable of vesting
Outstanding, beginning of year (in shares)	1,185,220	887,203	577,486
Granted (in shares)	574,784	370,931	623,882
Forfeited (in shares)	290,552	(4,102)	(45,617)
Vested ( in shares)	$ (148,718)	$ (115,757)	$ (136,618)
Change in estimated restricted shares considered probable of vesting (in shares)	(6,698)	46,945	(131,930)
Outstanding, end of year (in shares)	1,314,036	1,185,220	887,203
Weighted average grant data fair value (in dollars per share)
Outstanding, beginning of year (in dollars per share)	$ 12.80	$ 12.60	$ 12.91
Granted (in dollars per share)	10.95	14.01	12.66
Forfeited (in dollars per share)	11.70	13.98	12.57
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value	11.40	14	14.60
Change in estimated restricted shares considerable probable of vesting (in dollars per share)	12.92	13.35	12.17
Outstanding, end of year (in dollars per share)	$ 12.43	$ 12.80	$ 12.60

Non-controlling interests - Nar

Non-controlling interests - Narrative (Details)	Dec. 31, 2019
TP Fund
Noncontrolling Interest [Line Items]
Equity Method Investment, Ownership Percentage	83.50%
TP GP [Member]
Noncontrolling Interest [Line Items]
Equity Method Investment, Ownership Percentage	16.10%

Non-controlling interests Nonco

Non-controlling interests Noncontrolling interests (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Minority Interests [Line Items]
Total Noncontrolling Interests, beginning of period				$ 0				$ 113,626	$ 0	$ 113,626
Net Income (Loss) Attributable to Noncontrolling Interest	$ 0	$ 0	$ 0	0	$ 0	$ 4	$ 209	10	0	223	$ 3,973
Contributions From Noncontrolling Interest										644
Redemptions (1)										114,493
Total Noncontrolling Interests, end of period					0					0	113,626
Redeemable Noncontrolling Interest [Member]
Minority Interests [Line Items]
Redeemable noncontrolling interests, beginning of period				0				108,219	0	108,219
Change in Capital Account Allocation, Redeemable										(108,219)
Redeemable noncontrolling interests, end of period					0					0	108,219
Noncontrolling interests in related party
Minority Interests [Line Items]
Noncontrolling interests in related party, beginning of period				0				5,407	0	5,407
Change in Capital Account Allocation, Nonredeemable										(5,407)
Noncontrolling interests in related party, end of period					0					0	5,407
Total Noncontrolling Interests [Member]
Minority Interests [Line Items]
Total Noncontrolling Interests, beginning of period				0				113,626	$ 0	113,626
Change in Capital Account Allocation										(113,626)
Total Noncontrolling Interests, end of period					0					0	113,626
TP Fund
Minority Interests [Line Items]
Equity Method Investment, Ownership Percentage	83.50%								83.50%
Third Point USA [Member]
Minority Interests [Line Items]
Total Noncontrolling Interests, beginning of period				0				16,007	$ 0	16,007
Net Income (Loss) Attributable to Noncontrolling Interest										82
Contributions From Noncontrolling Interest										80
Redemptions (1)										16,169
Total Noncontrolling Interests, end of period					0					0	16,007
Third Point Bermuda [Member]
Minority Interests [Line Items]
Total Noncontrolling Interests, beginning of period				$ 0				$ 97,619	$ 0	97,619
Net Income (Loss) Attributable to Noncontrolling Interest										141
Contributions From Noncontrolling Interest										564
Redemptions (1)										98,324
Total Noncontrolling Interests, end of period					$ 0					$ 0	$ 97,619
TP GP [Member]
Minority Interests [Line Items]
Equity Method Investment, Ownership Percentage	16.10%								16.10%

Earnings (loss) per share ava_3

Earnings (loss) per share available to Third Point Re common shareholders (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Weighted-average number of common shares outstanding:
Basic number of common shares outstanding (in shares)	91,989,469	91,903,556	91,776,870	91,669,810	91,967,831	95,671,385	99,498,901	101,195,747	91,835,990	97,054,315	102,264,094
Dilutive effect of options (in shares)									125,530	0	1,392,384
Dilutive effect of warrants (in shares)									91,884	0	1,270,957
Dilutive effect of restricted shares with service and performance condition									598,912	0	299,603
Diluted number of common shares outstanding (in shares)	92,696,491	91,903,556	92,801,799	92,578,933	91,967,831	95,671,385	102,032,485	101,195,747	92,652,316	97,054,315	105,227,038
Basic earnings (loss) per common share:
Net income (loss) available to Third Point Re common shareholders	$ 29,738	$ (15,099)	$ 53,065	$ 132,915	$ (298,012)	$ (13,281)	$ 19,602	$ (26,001)	$ 200,619	$ (317,692)	$ 277,798
Net income allocated to Third Point Re participating common shareholders									643	0	(263)
Net income (loss) allocated to Third Point Re common shareholders									$ 199,976	$ (317,692)	$ 277,535
Basic net income (loss) per common share (in dollars per share)	$ 0.32	$ (0.16)	$ 0.58	$ 1.45	$ (3.24)	$ (0.14)	$ 0.20	$ (0.26)	$ 2.18	$ (3.27)	$ 2.71
Earnings Per Share, Diluted [Abstract]
Net income (loss) available to Third Point Re common shareholders	$ 29,738	$ (15,099)	$ 53,065	$ 132,915	$ (298,012)	$ (13,281)	$ 19,602	$ (26,001)	$ 200,619	$ (317,692)	$ 277,798
Net income allocated to Third Point Re participating common shareholders									(637)	0	(256)
Net income (loss) allocated to Third Point Re common shareholders									$ 199,982	$ (317,692)	$ 277,542
Diluted net income (loss) per common share (in dollars per share)	$ 0.32	$ (0.16)	$ 0.57	$ 1.43	$ (3.24)	$ (0.14)	$ 0.19	$ (0.26)	$ 2.16	$ (3.27)	$ 2.64
Options and Warrants
Earnings Per Share, Diluted [Abstract]
Antidilutive securities excluded from computation of earnings per share									3,719,404	9,820,795	4,056,588

Commitments and Contingencies -

Commitments and Contingencies - Operating lease (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Operating leases, rent expense	$ 900	$ 800	$ 800
2020	833
2021	236
2022	39
2023	0
2024	0
Thereafter	0
Total	$ 1,108

Commitments and Contingencies_2

Commitments and Contingencies - Agreements and Investments (Details)	Dec. 31, 2019	Dec. 31, 2018	Aug. 31, 2018
Co-venture and Management [Member]
Other Commitments [Line Items]
Annual Investment Management Fee			1.50%
TP Fund
Other Commitments [Line Items]
Annual Investment Management Fee	1.25%	1.50%

Commitments and Contingencies_3

Commitments and Contingencies - Financing (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Other Commitments [Line Items]
Shareholders’ equity attributable to Third Point Re common shareholders	$ 1,414,074	$ 1,204,574	$ 1,656,089
Early Termination Events Reduction Threshold Of Stockholders Equity	20.00%
7% Senior Unsecured Notes | Unsecured Debt
Other Commitments [Line Items]
Debt issued	$ 115,000
Interest rate	7.00%

Segment reporting - Operating S

Segment reporting - Operating Segments (Details) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019USD ($)	Sep. 30, 2019USD ($)	Jun. 30, 2019USD ($)	Mar. 31, 2019USD ($)	Dec. 31, 2018USD ($)	Sep. 30, 2018USD ($)	Jun. 30, 2018USD ($)	Mar. 31, 2018USD ($)	Dec. 31, 2019USD ($)segment	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Segment Reporting [Abstract]
Number of operating segments | segment									1
Segment Reporting Information [Line Items]
Gross premiums written	$ 134,230	$ 95,388	$ 82,637	$ 319,591	$ 120,063	$ 30,064	$ 49,765	$ 378,360	$ 631,846	$ 578,252	$ 641,620
Gross premiums ceded	(5,964)	(1,116)	(1,473)	(712)	(1,770)	0	(3,479)	(14,646)	(9,265)	(19,895)	(2,475)
Net premiums written	128,266	94,272	81,164	318,879	118,293	30,064	46,286	363,714	622,581	558,357	639,145
Change in net unearned premium reserves	70,126	108,976	64,288	(165,829)	91,177	97,929	95,207	(221,228)	77,561	63,085	(92,087)
Net premiums earned	198,392	203,248	145,452	153,050	209,470	127,993	141,493	142,486	700,142	621,442	547,058
Loss and loss adjustment expenses incurred, net	140,394	85,703	82,334	95,068	173,088	88,706	84,000	92,620	403,499	438,414	370,058
Acquisition costs, net	61,851	118,271	58,006	57,498	56,668	40,841	57,584	51,405	295,626	206,498	188,904
General and administrative expenses	(12,744)	(9,237)	(19,650)	(12,132)	(7,553)	(9,511)	(9,696)	(9,481)	(53,763)	(36,241)	(53,103)
Net investment income (loss)									722,491	663,547	589,618
Net investment income (loss)	(61,614)	3,138	(69,131)	(154,953)	276,810	3,590	(31,175)	2,208	(282,560)	251,433	(391,953)
Other expenses	(3,625)	(5,058)	(3,811)	(4,125)	(2,994)	1,362	(3,983)	(3,995)	(16,619)	(9,610)	(12,674)
Interest expense	(2,074)	(2,074)	(2,051)	(2,029)	(2,074)	(2,074)	(2,051)	(2,029)	(8,228)	(8,228)	(8,225)
Foreign exchange (gains) losses	(10,298)	4,921	4,260	(2,518)	3,288	1,979	8,847	(6,611)	(3,635)	7,503	(12,300)
Income tax (expense) benefit	718	213	74	(1,718)	8,417	111	(4,390)	(128)	(713)	4,010	(11,976)
Net income attributable to noncontrolling interests in related party	0	0	0	0	0	(4)	(209)	(10)	0	(223)	(3,973)
Net income (loss) available to Third Point Re common shareholders	$ 29,738	$ (15,099)	$ 53,065	$ 132,915	$ (298,012)	$ (13,281)	$ 19,602	$ (26,001)	200,619	(317,692)	277,798
Property and Casualty Reinsurance
Segment Reporting Information [Line Items]
Gross premiums written									$ 631,846	$ 578,252	$ 641,620
Gross Premiums As Percentage Of Total Gross Premiums									100.00%	100.00%	100.00%
Operating Segments | Property and Casualty Reinsurance
Segment Reporting Information [Line Items]
Gross premiums written									$ 631,846	$ 578,252	$ 641,620
Gross premiums ceded									(9,265)	(19,895)	(2,475)
Net premiums written									622,581	558,357	639,145
Change in net unearned premium reserves									77,561	63,085	(92,087)
Net premiums earned									700,142	621,442	547,058
Loss and loss adjustment expenses incurred, net									403,499	438,414	370,058
Acquisition costs, net									295,626	206,498	188,904
General and administrative expenses									(23,366)	(18,635)	(30,656)
Net investment income (loss)									722,491	663,547	589,618
Net underwriting loss									$ 22,349	$ 42,105	$ 42,560
Loss ratio									57.60%	70.60%	67.60%
Acquisition cost ratio									42.20%	33.20%	34.50%
Composite ratio									99.80%	103.80%	102.10%
General and administrative expense ratio									3.40%	3.00%	5.60%
Combined ratio									103.20%	106.80%	107.70%
Corporate
Segment Reporting Information [Line Items]
General and administrative expenses									$ (30,397)	$ (17,606)	$ (22,447)

Segment reporting - Concentrati

Segment reporting - Concentration Risk (Details) - Gross Premiums Written	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue, Major Customer [Line Items]
Concentration risk, percentage	100.00%	100.00%	100.00%
Contract Concentration Risk
Revenue, Major Customer [Line Items]
Concentration risk, percentage	100.00%	100.00%	100.00%
Contract Concentration Risk | Contract 1
Revenue, Major Customer [Line Items]
Concentration risk, percentage	15.20%	17.50%	16.10%
Contract Concentration Risk | Contract 2
Revenue, Major Customer [Line Items]
Concentration risk, percentage		12.10%	14.10%
Contract Concentration Risk | Contract 3
Revenue, Major Customer [Line Items]
Concentration risk, percentage			13.10%
Contract Concentration Risk | Total for contracts contributing greater than 10% each
Revenue, Major Customer [Line Items]
Concentration risk, percentage	15.20%	29.60%	43.30%
Contract Concentration Risk | Total for contracts contributing less than 10% each
Revenue, Major Customer [Line Items]
Concentration risk, percentage	84.80%	70.40%	56.70%

Segment reporting - Receivables

Segment reporting - Receivables (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Concentration Risk [Line Items]
Reinsurance balances receivable	$ 596,120	$ 602,448
Customer Concentration Risk | Reinsurance Receivables
Concentration Risk [Line Items]
Reinsurance balances receivable	$ 596,120	$ 602,448
Concentration risk, percentage	100.00%	100.00%
Customer Concentration Risk | Reinsurance Receivables | Counterparty 1
Concentration Risk [Line Items]
Reinsurance balances receivable	$ 114,252	$ 86,155
Concentration risk, percentage	19.20%	14.30%
Customer Concentration Risk | Reinsurance Receivables | Counterparty 2
Concentration Risk [Line Items]
Reinsurance balances receivable	$ 105,992	$ 83,079
Concentration risk, percentage	17.80%	13.80%
Customer Concentration Risk | Reinsurance Receivables | Counterparty 3
Concentration Risk [Line Items]
Reinsurance balances receivable	$ 88,895	$ 69,641
Concentration risk, percentage	14.90%	11.60%
Customer Concentration Risk | Reinsurance Receivables | Customers contributing greater than 10% each
Concentration Risk [Line Items]
Reinsurance balances receivable	$ 309,139	$ 238,875
Concentration risk, percentage	51.90%	39.70%
Customer Concentration Risk | Reinsurance Receivables | Other counterparties representing less than 10% each
Concentration Risk [Line Items]
Reinsurance balances receivable	$ 286,981	$ 363,573
Concentration risk, percentage	48.10%	60.30%

Segment reporting - Business Li

Segment reporting - Business Line (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue, Major Customer [Line Items]
Gross premiums written	$ 134,230	$ 95,388	$ 82,637	$ 319,591	$ 120,063	$ 30,064	$ 49,765	$ 378,360	$ 631,846	$ 578,252	$ 641,620
Property and Casualty Reinsurance
Revenue, Major Customer [Line Items]
Gross premiums written									$ 631,846	$ 578,252	$ 641,620
Gross Premiums As Percentage Of Total Gross Premiums									100.00%	100.00%	100.00%
Property and Casualty Reinsurance | Property
Revenue, Major Customer [Line Items]
Gross premiums written									$ 144,271	$ 9,070	$ 136,999
Gross Premiums As Percentage Of Total Gross Premiums									22.80%	1.60%	21.40%
Property and Casualty Reinsurance | Casualty
Revenue, Major Customer [Line Items]
Gross premiums written									$ 151,893	$ 235,789	$ 269,759
Gross Premiums As Percentage Of Total Gross Premiums									24.00%	40.80%	42.00%
Property and Casualty Reinsurance | Specialty
Revenue, Major Customer [Line Items]
Gross premiums written									$ 248,044	$ 259,173	$ 125,511
Gross Premiums As Percentage Of Total Gross Premiums									39.30%	44.80%	19.60%
Property and Casualty Reinsurance | Total prospective reinsurance contracts
Revenue, Major Customer [Line Items]
Gross premiums written									$ 544,208	$ 504,032	$ 532,269
Gross Premiums As Percentage Of Total Gross Premiums									86.10%	87.20%	83.00%
Property and Casualty Reinsurance | Retroactive reinsurance contracts
Revenue, Major Customer [Line Items]
Gross premiums written									$ 87,638	$ 74,220	$ 109,351
Gross Premiums As Percentage Of Total Gross Premiums									13.90%	12.80%	17.00%

Segment reporting - Broker Conc

Segment reporting - Broker Concentration (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue, Major Customer [Line Items]
Gross premiums written	$ 134,230	$ 95,388	$ 82,637	$ 319,591	$ 120,063	$ 30,064	$ 49,765	$ 378,360	$ 631,846	$ 578,252	$ 641,620
Gross Premiums Written
Revenue, Major Customer [Line Items]
Gross premiums written									$ 631,846	$ 578,252	$ 641,620
Concentration risk, percentage									100.00%	100.00%	100.00%
Gross Premiums Written | Customer Concentration Risk
Revenue, Major Customer [Line Items]
Gross premiums written									$ 631,846	$ 578,252	$ 641,620
Concentration risk, percentage									100.00%	100.00%	100.00%
Gross Premiums Written | Customer Concentration Risk | Largest broker
Revenue, Major Customer [Line Items]
Gross premiums written									$ 160,404	$ 198,251	$ 243,581
Concentration risk, percentage									25.40%	34.30%	38.00%
Gross Premiums Written | Customer Concentration Risk | Second largest broker
Revenue, Major Customer [Line Items]
Gross premiums written									$ 150,377	$ 157,542	$ 128,648
Concentration risk, percentage									23.80%	27.20%	20.10%
Gross Premiums Written | Customer Concentration Risk | Third largest broker
Revenue, Major Customer [Line Items]
Gross premiums written									$ 137,685	$ 70,524	$ 107,612
Concentration risk, percentage									21.80%	12.20%	16.80%
Gross Premiums Written | Customer Concentration Risk | Other
Revenue, Major Customer [Line Items]
Gross premiums written									$ 183,380	$ 151,935	$ 161,779
Concentration risk, percentage									29.00%	26.30%	25.10%

Segment reporting - Geographic

Segment reporting - Geographic information (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenue from External Customer [Line Items]
Gross premiums written	$ 134,230	$ 95,388	$ 82,637	$ 319,591	$ 120,063	$ 30,064	$ 49,765	$ 378,360	$ 631,846	$ 578,252	$ 641,620
Gross Premiums Written
Revenue from External Customer [Line Items]
Gross premiums written									$ 631,846	$ 578,252	$ 641,620
Concentration risk, percentage									100.00%	100.00%	100.00%
Gross Premiums Written | United States
Revenue from External Customer [Line Items]
Gross premiums written									$ 326,987	$ 326,261	$ 352,539
Concentration risk, percentage									51.80%	56.40%	54.90%
Gross Premiums Written | United Kingdom
Revenue from External Customer [Line Items]
Gross premiums written									$ 154,909	$ 63,619	$ 203,768
Concentration risk, percentage									24.50%	11.00%	31.80%
Gross Premiums Written | Bermuda
Revenue from External Customer [Line Items]
Gross premiums written									$ 142,246	$ 93,406	$ 62,234
Concentration risk, percentage									22.50%	16.20%	9.70%
Gross Premiums Written | Other
Revenue from External Customer [Line Items]
Gross premiums written									$ 7,704	$ 94,966	$ 23,079
Concentration risk, percentage									1.20%	16.40%	3.60%

Statutory Requirements (Details

Statutory Requirements (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2019USD ($)member	Dec. 31, 2018USD ($)	Dec. 31, 2017USD ($)
Statutory Accounting Practices [Line Items]
Liquidity ratio, minimum percentage required	75.00%
Bermuda
Statutory Accounting Practices [Line Items]
Actual statutory capital and surplus	$ 1,298,596	$ 1,043,357
Required statutory capital and surplus	555,714	574,405
Statutory net income	$ 214,227	(272,339)	$ 265,903
Statutory maximum percentage available for dividend payments	25.00%
Dividend payments with regulatory approval, number of members required | member	2
Statutory amount available for dividend payments without regulatory approval	$ 314,500	260,800
United States
Statutory Accounting Practices [Line Items]
Actual statutory capital and surplus	276,185	255,872
Required statutory capital and surplus	112,601	100,000
Statutory net income	$ 9,016	(29,491)	$ 22,310
Statutory maximum percentage available for dividend payments	25.00%
Dividend payments with regulatory approval, number of members required | member	2
Statutory amount available for dividend payments without regulatory approval	$ 21,600	$ 1,400
Net Worth Maintenance Agreement, Minimum Level of Capital	$ 250,000

Supplemental guarantor inform_3

Supplemental guarantor information - Condensed Consolidating Balance Sheet (Details) - USD ($)	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Assets
Total investments	$ 989,701,000	$ 1,523,728,000
Cash and cash equivalents	639,415,000	104,183,000
Restricted cash and cash equivalents	1,014,543,000	609,154,000
Investment in subsidiaries	0	0
Due from brokers	0	1,411,000
Interest and dividends receivable	2,178,000	1,316,000
Reinsurance balances receivable	596,120,000	602,448,000
Deferred acquisition costs, net	154,717,000	203,842,000
Unearned premiums ceded	16,945,000	17,552,000
Loss and loss adjustment expenses recoverable	5,520,000	2,031,000	$ 1,113,000	$ 1,000
Amounts due from (to) affiliates	0	0
Other assets	20,555,000	20,569,000
Total assets	3,439,694,000	3,086,234,000
Liabilities
Accounts payable and accrued expenses	17,816,000	7,261,000
Reinsurance balances payable	81,941,000	69,701,000
Deposit liabilities	172,259,000	145,342,000	129,133,000	$ 104,905,000
Unearned premium reserves	524,768,000	602,936,000
Loss and loss adjustment expense reserves	1,111,692,000	937,157,000
Participation agreement with related party investment fund	0	2,297,000
Interest and dividends payable	3,055,000	3,055,000
Senior notes payable, net of deferred costs	114,089,000	113,911,000
Total liabilities	2,025,620,000	1,881,660,000
Shareholders’ equity
Common shares	9,423,000	9,364,000
Additional paid-in capital	927,704,000	918,882,000
Retained earnings	476,947,000	276,328,000
Shareholders’ equity attributable to Third Point Re common shareholders	1,414,074,000	1,204,574,000	1,656,089,000
Total shareholders' equity	1,414,074,000	1,204,574,000	1,661,496,000
Total liabilities and shareholders’ equity	3,439,694,000	3,086,234,000
Net deferred tax asset (liability)	4,745,000	1,085,000	$ 10,233,000
Reportable Legal Entities | Parent Guarantor
Assets
Total investments	4,000,000	0
Cash and cash equivalents	10,000	0
Restricted cash and cash equivalents	0	0
Investment in subsidiaries	1,419,197,000	1,207,161,000
Due from brokers		0
Interest and dividends receivable	0	0
Reinsurance balances receivable	0	0
Deferred acquisition costs, net	0	0
Unearned premiums ceded	0	0
Loss and loss adjustment expenses recoverable	0	0
Amounts due from (to) affiliates	(5,722,000)	(3,522,000)
Other assets	764,000	1,673,000
Total assets	1,418,249,000	1,205,312,000
Liabilities
Accounts payable and accrued expenses	4,175,000	738,000
Reinsurance balances payable	0	0
Deposit liabilities	0	0
Unearned premium reserves	0	0
Loss and loss adjustment expense reserves	0	0
Participation agreement with related party investment fund		0
Interest and dividends payable	0	0
Senior notes payable, net of deferred costs	0	0
Total liabilities	4,175,000	738,000
Shareholders’ equity
Common shares	9,423,000	9,364,000
Additional paid-in capital	927,704,000	918,882,000
Retained earnings	476,947,000	276,328,000
Shareholders’ equity attributable to Third Point Re common shareholders	1,414,074,000	1,204,574,000
Total liabilities and shareholders’ equity	1,418,249,000	1,205,312,000
Reportable Legal Entities | TPRUSA
Assets
Total investments	0	0
Cash and cash equivalents	176,000	187,000
Restricted cash and cash equivalents	0	0
Investment in subsidiaries	271,624,000	251,350,000
Due from brokers		0
Interest and dividends receivable	0	0
Reinsurance balances receivable	0	0
Deferred acquisition costs, net	0	0
Unearned premiums ceded	0	0
Loss and loss adjustment expenses recoverable	0	0
Amounts due from (to) affiliates	(3,898,000)	52,000
Other assets	6,784,000	5,069,000
Total assets	274,686,000	256,658,000
Liabilities
Accounts payable and accrued expenses	0	70,000
Reinsurance balances payable	0	0
Deposit liabilities	0	0
Unearned premium reserves	0	0
Loss and loss adjustment expense reserves	0	0
Participation agreement with related party investment fund		0
Interest and dividends payable	3,055,000	3,055,000
Senior notes payable, net of deferred costs	114,089,000	113,911,000
Total liabilities	117,144,000	117,036,000
Shareholders’ equity
Common shares	0	0
Additional paid-in capital	191,361,000	176,005,000
Retained earnings	(33,819,000)	(36,383,000)
Shareholders’ equity attributable to Third Point Re common shareholders	157,542,000	139,622,000
Total liabilities and shareholders’ equity	274,686,000	256,658,000
Reportable Legal Entities | Non-Guarantor Subsidiaries
Assets
Total investments	985,701,000	1,523,728,000
Cash and cash equivalents	639,229,000	103,996,000
Restricted cash and cash equivalents	1,014,543,000	609,154,000
Investment in subsidiaries	191,077,000	175,758,000
Due from brokers		1,411,000
Interest and dividends receivable	2,178,000	1,316,000
Reinsurance balances receivable	596,120,000	602,448,000
Deferred acquisition costs, net	154,717,000	203,842,000
Unearned premiums ceded	16,945,000	17,552,000
Loss and loss adjustment expenses recoverable	5,520,000	2,031,000
Amounts due from (to) affiliates	9,620,000	3,470,000
Other assets	13,007,000	13,827,000
Total assets	3,628,657,000	3,258,533,000
Liabilities
Accounts payable and accrued expenses	13,641,000	6,453,000
Reinsurance balances payable	81,941,000	69,701,000
Deposit liabilities	172,259,000	145,342,000
Unearned premium reserves	524,768,000	602,936,000
Loss and loss adjustment expense reserves	1,111,692,000	937,157,000
Participation agreement with related party investment fund		2,297,000
Interest and dividends payable	0	0
Senior notes payable, net of deferred costs	0	0
Total liabilities	1,904,301,000	1,763,886,000
Shareholders’ equity
Common shares	1,239,000	1,239,000
Additional paid-in capital	1,591,796,000	1,557,016,000
Retained earnings	131,321,000	(63,608,000)
Shareholders’ equity attributable to Third Point Re common shareholders	1,724,356,000	1,494,647,000
Total liabilities and shareholders’ equity	3,628,657,000	3,258,533,000
Eliminations
Assets
Total investments	0	0
Cash and cash equivalents	0	0
Restricted cash and cash equivalents	0	0
Investment in subsidiaries	(1,881,898,000)	(1,634,269,000)
Due from brokers		0
Interest and dividends receivable	0	0
Reinsurance balances receivable	0	0
Deferred acquisition costs, net	0	0
Unearned premiums ceded	0	0
Loss and loss adjustment expenses recoverable	0	0
Amounts due from (to) affiliates	0	0
Other assets	0	0
Total assets	(1,881,898,000)	(1,634,269,000)
Liabilities
Accounts payable and accrued expenses	0	0
Reinsurance balances payable	0	0
Deposit liabilities	0	0
Unearned premium reserves	0	0
Loss and loss adjustment expense reserves	0	0
Participation agreement with related party investment fund		0
Interest and dividends payable	0	0
Senior notes payable, net of deferred costs	0	0
Total liabilities	0	0
Shareholders’ equity
Common shares	(1,239,000)	(1,239,000)
Additional paid-in capital	(1,783,157,000)	(1,733,021,000)
Retained earnings	(97,502,000)	99,991,000
Shareholders’ equity attributable to Third Point Re common shareholders	(1,881,898,000)	(1,634,269,000)
Total liabilities and shareholders’ equity	(1,881,898,000)	$ (1,634,269,000)
Financial Guarantee [Member] | TPRUSA
Condensed Balance Sheet Statements, Captions [Line Items]
Debt issued	$ 115,000,000

Supplemental guarantor inform_4

Supplemental guarantor information - Condensed Consolidating Statement of Income (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues
Gross premiums written	$ 134,230	$ 95,388	$ 82,637	$ 319,591	$ 120,063	$ 30,064	$ 49,765	$ 378,360	$ 631,846	$ 578,252	$ 641,620
Gross premiums ceded	(5,964)	(1,116)	(1,473)	(712)	(1,770)	0	(3,479)	(14,646)	(9,265)	(19,895)	(2,475)
Net premiums written	128,266	94,272	81,164	318,879	118,293	30,064	46,286	363,714	622,581	558,357	639,145
Change in net unearned premium reserves	70,126	108,976	64,288	(165,829)	91,177	97,929	95,207	(221,228)	77,561	63,085	(92,087)
Net premiums earned	198,392	203,248	145,452	153,050	209,470	127,993	141,493	142,486	700,142	621,442	547,058
Net investment income (loss)	61,614	(3,138)	69,131	154,953	(276,810)	(3,590)	31,175	(2,208)	282,560	(251,433)	391,953
Equity in earnings (losses) of subsidiaries									0	0	0
Total revenues	260,006	200,110	214,583	308,003	(67,340)	124,403	172,668	140,278	982,702	370,009	939,011
Expenses
Loss and loss adjustment expenses incurred, net	140,394	85,703	82,334	95,068	173,088	88,706	84,000	92,620	403,499	438,414	370,058
Acquisition costs, net	61,851	118,271	58,006	57,498	56,668	40,841	57,584	51,405	295,626	206,498	188,904
General and administrative expenses	12,744	9,237	19,650	12,132	7,553	9,511	9,696	9,481	53,763	36,241	53,103
Other expenses	3,625	5,058	3,811	4,125	2,994	(1,362)	3,983	3,995	16,619	9,610	12,674
Interest expense	2,074	2,074	2,051	2,029	2,074	2,074	2,051	2,029	8,228	8,228	8,225
Foreign exchange (gains) losses	(10,298)	4,921	4,260	(2,518)	3,288	1,979	8,847	(6,611)	(3,635)	7,503	(12,300)
Total expenses	230,986	215,422	161,592	173,370	239,089	137,791	148,467	166,141	781,370	691,488	645,264
Income (loss) before income tax (expense) benefit	29,020	(15,312)	52,991	134,633	(306,429)	(13,388)	24,201	(25,863)	201,332	(321,479)	293,747
Income tax (expense) benefit	718	213	74	(1,718)	8,417	111	(4,390)	(128)	(713)	4,010	(11,976)
Net income (loss)	29,738	(15,099)	53,065	132,915	(298,012)	(13,277)	19,811	(25,991)	200,619	(317,469)	281,771
Net income attributable to noncontrolling interests in related party	0	0	0	0	0	(4)	(209)	(10)	0	(223)	(3,973)
Net income (loss) available to Third Point Re common shareholders	$ 29,738	$ (15,099)	$ 53,065	$ 132,915	$ (298,012)	$ (13,281)	$ 19,602	$ (26,001)	200,619	(317,692)	277,798
Reportable Legal Entities | Parent Guarantor
Revenues
Gross premiums written									0	0	0
Gross premiums ceded									0	0	0
Net premiums written									0	0	0
Change in net unearned premium reserves									0	0	0
Net premiums earned									0	0	0
Net investment income (loss)									0	0	0
Equity in earnings (losses) of subsidiaries									216,877	(310,552)	283,088
Total revenues									216,877	(310,552)	283,088
Expenses
Loss and loss adjustment expenses incurred, net									0	0	0
Acquisition costs, net									0	0	0
General and administrative expenses									16,258	7,140	5,290
Other expenses									0	0	0
Interest expense									0	0	0
Foreign exchange (gains) losses									0	0	0
Total expenses									16,258	7,140	5,290
Income (loss) before income tax (expense) benefit									200,619	(317,692)	277,798
Income tax (expense) benefit									0	0	0
Net income (loss)									200,619	(317,692)	277,798
Net income attributable to noncontrolling interests in related party									0	0	0
Net income (loss) available to Third Point Re common shareholders									200,619	(317,692)	277,798
Reportable Legal Entities | TPRUSA
Revenues
Gross premiums written									0	0	0
Gross premiums ceded									0	0	0
Net premiums written									0	0	0
Change in net unearned premium reserves									0	0	0
Net premiums earned									0	0	0
Net investment income (loss)									0	0	0
Equity in earnings (losses) of subsidiaries									9,017	(29,492)	22,309
Total revenues									9,017	(29,492)	22,309
Expenses
Loss and loss adjustment expenses incurred, net									0	0	0
Acquisition costs, net									0	0	0
General and administrative expenses									(59)	47	49
Other expenses									0	0	0
Interest expense									8,228	8,228	8,225
Foreign exchange (gains) losses									0	0	0
Total expenses									8,169	8,275	8,274
Income (loss) before income tax (expense) benefit									848	(37,767)	14,035
Income tax (expense) benefit									1,716	(419)	3,062
Net income (loss)									2,564	(38,186)	17,097
Net income attributable to noncontrolling interests in related party									0	0	0
Net income (loss) available to Third Point Re common shareholders									2,564	(38,186)	17,097
Reportable Legal Entities | Non-Guarantor Subsidiaries
Revenues
Gross premiums written									631,846	578,252	641,620
Gross premiums ceded									(9,265)	(19,895)	(2,475)
Net premiums written									622,581	558,357	639,145
Change in net unearned premium reserves									77,561	63,085	(92,087)
Net premiums earned									700,142	621,442	547,058
Net investment income (loss)									282,560	(251,433)	391,953
Equity in earnings (losses) of subsidiaries									(40)	(57)	(57)
Total revenues									982,662	369,952	938,954
Expenses
Loss and loss adjustment expenses incurred, net									403,499	438,414	370,058
Acquisition costs, net									295,626	206,498	188,904
General and administrative expenses									37,564	29,054	47,764
Other expenses									16,619	9,610	12,674
Interest expense									0	0	0
Foreign exchange (gains) losses									(3,635)	7,503	(12,300)
Total expenses									756,943	676,073	631,700
Income (loss) before income tax (expense) benefit									225,719	(306,121)	307,254
Income tax (expense) benefit									(2,429)	4,429	(15,038)
Net income (loss)									223,290	(301,692)	292,216
Net income attributable to noncontrolling interests in related party									0	(223)	(3,973)
Net income (loss) available to Third Point Re common shareholders									223,290	(301,915)	288,243
Eliminations
Revenues
Gross premiums written									0	0	0
Gross premiums ceded									0	0	0
Net premiums written									0	0	0
Change in net unearned premium reserves									0	0	0
Net premiums earned									0	0	0
Net investment income (loss)									0	0	0
Equity in earnings (losses) of subsidiaries									(225,854)	340,101	(305,340)
Total revenues									(225,854)	340,101	(305,340)
Expenses
Loss and loss adjustment expenses incurred, net									0	0	0
Acquisition costs, net									0	0	0
General and administrative expenses									0	0	0
Other expenses									0	0	0
Interest expense									0	0	0
Foreign exchange (gains) losses									0	0	0
Total expenses									0	0	0
Income (loss) before income tax (expense) benefit									(225,854)	340,101	(305,340)
Income tax (expense) benefit									0	0	0
Net income (loss)									(225,854)	340,101	(305,340)
Net income attributable to noncontrolling interests in related party									0	0	0
Net income (loss) available to Third Point Re common shareholders									$ (225,854)	$ 340,101	$ (305,340)

Supplemental guarantor inform_5

Supplemental guarantor information - Condensed Consolidating Statement of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating activities
Net income (loss)	$ 29,738	$ (15,099)	$ 53,065	$ 132,915	$ (298,012)	$ (13,277)	$ 19,811	$ (25,991)	$ 200,619	$ (317,469)	$ 281,771
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Equity in earnings of subsidiaries									0	0	0
Share compensation expense									7,061	4,956	3,599
Net interest expense (income) on deposit liabilities									5,879	(1,273)	2,800
Unrealized Gain (Loss) on Investments											480,045
Net Realized and Unrealized Gain (Loss) on Trading Securities									(2,522)	(34,145)	(480,045)
Net realized and unrealized (gain) loss on investment in related party investment fund									(249,626)	280,847	0
Foreign exchange (gains) losses	(10,298)	$ 4,921	$ 4,260	$ (2,518)	3,288	$ 1,979	$ 8,847	$ (6,611)	(3,635)	7,503	(12,300)
Amortization of premium and accretion of discount, net									(1,382)	4,134	473
Changes in assets and liabilities:
Reinsurance balances receivable									30,039	(120,620)	(86,606)
Deferred acquisition costs, net									49,125	54,951	(37,175)
Increase (Decrease) in Prepaid Reinsurance Premiums									607	(16,503)	(354)
Increase (Decrease) in Reinsurance Recoverable									(3,489)	(918)	(1,112)
Other assets									(172)	(13,486)	9,137
Interest and dividends receivable, net									(862)	(2,716)	3,563
Unearned premium reserves									(78,168)	(46,582)	92,442
Loss and loss adjustment expense reserves									(157,849)	(225,670)	(97,922)
Accounts payable and accrued expenses									10,555	(24,684)	24,212
Reinsurance balances payable									11,964	28,728	(1,463)
Amounts due from (to) affiliates											0
Amounts due to affiliates									0	0
Net cash provided by (used in) operating activities									141,112	13,387	(78,536)
Proceeds from redemptions from related party investment fund									760,000	142,968	0
Investing activities
Contributions to related party investment fund									(87,000)	(136,626)	0
Purchases of investments									(331,463)	(3,483,319)	(3,099,525)
Change in participation agreement with related party investment fund									(2,297)	(20,852)	0
Proceeds from sales and maturities of investments									446,206	3,475,515	3,228,251
Purchases of investments to cover short sales									0	(853,798)	(791,753)
Proceeds from short sales of investments									0	800,508	1,048,552
Change in due to/from brokers, net									1,411	482,778	(149,898)
Increase (decrease) in securities sold under an agreement to repurchase									0	(29,618)	29,618
Contributed capital to subsidiaries									0	0
Proceeds from Contributed Capital									0	0
Net cash provided by investing activities									786,857	377,556	265,245
Financing activities
Proceeds from issuance of Third Point Re common shares, net of costs									1,888	0	1,505
Payments Related to Tax Withholding for Share-based Compensation									(68)	(74)	0
Purchases of Third Point Re common shares under share repurchase program									0	(138,705)	(40,864)
Net proceeds from deposit liability contracts									10,832	9,790	19,113
Change in total noncontrolling interests in related party, net									0	(97,950)	73,979
Dividend received by (paid to) parent									0	0	0
Net cash provided by (used in) financing activities									12,652	(226,939)	53,733
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect									940,621	164,004	240,442
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	1,653,958				713,337				1,653,958	713,337	549,333	$ 308,891
Reportable Legal Entities | Parent Guarantor
Operating activities
Net income (loss)									200,619	(317,692)	277,798
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Equity in earnings of subsidiaries									(216,877)	310,552	(283,088)
Share compensation expense									2,653	610	298
Net interest expense (income) on deposit liabilities									0	0	0
Unrealized Gain (Loss) on Investments											0
Net Realized and Unrealized Gain (Loss) on Trading Securities									0	0
Net realized and unrealized (gain) loss on investment in related party investment fund									0	0
Foreign exchange (gains) losses									0	0	0
Amortization of premium and accretion of discount, net									0	0	0
Changes in assets and liabilities:
Reinsurance balances receivable									0	0	0
Deferred acquisition costs, net									0	0	0
Increase (Decrease) in Prepaid Reinsurance Premiums									0	0	0
Increase (Decrease) in Reinsurance Recoverable									0	0	0
Other assets									909	(1,009)	(27)
Interest and dividends receivable, net									0	0	0
Unearned premium reserves									0	0	0
Loss and loss adjustment expense reserves									0	0	0
Accounts payable and accrued expenses									3,437	(25)	(388)
Reinsurance balances payable									0	0	0
Amounts due from (to) affiliates											1,146
Amounts due to affiliates									2,200	2,234
Net cash provided by (used in) operating activities									(7,059)	(5,330)	(4,261)
Proceeds from redemptions from related party investment fund									0	0
Investing activities
Contributions to related party investment fund									0	0
Purchases of investments									(4,000)	0	0
Change in participation agreement with related party investment fund									0	0
Proceeds from sales and maturities of investments									0	0	0
Purchases of investments to cover short sales										0	0
Proceeds from short sales of investments										0	0
Change in due to/from brokers, net									0	0	0
Increase (decrease) in securities sold under an agreement to repurchase										0	0
Contributed capital to subsidiaries									(15,000)	(10,000)
Proceeds from Contributed Capital									0	0
Net cash provided by investing activities									(19,000)	(10,000)	0
Financing activities
Proceeds from issuance of Third Point Re common shares, net of costs									1,888		1,505
Payments Related to Tax Withholding for Share-based Compensation									(68)	(74)
Purchases of Third Point Re common shares under share repurchase program										(138,705)	(40,864)
Net proceeds from deposit liability contracts									0	0	0
Change in total noncontrolling interests in related party, net										0	0
Dividend received by (paid to) parent									24,249	154,100	42,000
Net cash provided by (used in) financing activities									26,069	15,321	2,641
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect									10	(9)	(1,620)
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	10				0				10	0	9	1,629
Reportable Legal Entities | TPRUSA
Operating activities
Net income (loss)									2,564	(38,186)	17,097
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Equity in earnings of subsidiaries									(9,017)	29,492	(22,309)
Share compensation expense									0	0	0
Net interest expense (income) on deposit liabilities									0	0	0
Unrealized Gain (Loss) on Investments											0
Net Realized and Unrealized Gain (Loss) on Trading Securities									0	0
Net realized and unrealized (gain) loss on investment in related party investment fund									0	0
Foreign exchange (gains) losses									0	0	0
Amortization of premium and accretion of discount, net									178	178	178
Changes in assets and liabilities:
Reinsurance balances receivable									0	0	0
Deferred acquisition costs, net									0	0	0
Increase (Decrease) in Prepaid Reinsurance Premiums									0	0	0
Increase (Decrease) in Reinsurance Recoverable									0	0	0
Other assets									(1,715)	(5,069)	5,507
Interest and dividends receivable, net									0	0	(2)
Unearned premium reserves									0	0	0
Loss and loss adjustment expense reserves									0	0	0
Accounts payable and accrued expenses									(71)	5,513	(8,845)
Reinsurance balances payable									0	0	0
Amounts due from (to) affiliates											(8,806)
Amounts due to affiliates									3,950	360
Net cash provided by (used in) operating activities									(4,111)	(7,712)	(17,180)
Proceeds from redemptions from related party investment fund									0	0
Investing activities
Contributions to related party investment fund									0	0
Purchases of investments									0	0	0
Change in participation agreement with related party investment fund									0	0
Proceeds from sales and maturities of investments									0	0	0
Purchases of investments to cover short sales										0	0
Proceeds from short sales of investments										0	0
Change in due to/from brokers, net									0	0	0
Increase (decrease) in securities sold under an agreement to repurchase										0	0
Contributed capital to subsidiaries									15,000	10,000
Proceeds from Contributed Capital									(15,000)	(10,000)
Net cash provided by investing activities									0	0	0
Financing activities
Proceeds from issuance of Third Point Re common shares, net of costs									0		0
Payments Related to Tax Withholding for Share-based Compensation									0	0
Purchases of Third Point Re common shares under share repurchase program										0	0
Net proceeds from deposit liability contracts									0	0	0
Change in total noncontrolling interests in related party, net										0	0
Dividend received by (paid to) parent									4,100	7,700	17,300
Net cash provided by (used in) financing activities									4,100	7,700	17,300
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect									(11)	(12)	120
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	176				187				176	187	199	79
Reportable Legal Entities | Non-Guarantor Subsidiaries
Operating activities
Net income (loss)									223,290	(301,692)	292,216
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Equity in earnings of subsidiaries									40	57	57
Share compensation expense									4,408	4,346	3,301
Net interest expense (income) on deposit liabilities									5,879	(1,273)	2,800
Unrealized Gain (Loss) on Investments											480,045
Net Realized and Unrealized Gain (Loss) on Trading Securities									(2,522)	(34,145)
Net realized and unrealized (gain) loss on investment in related party investment fund									(249,626)	280,847
Foreign exchange (gains) losses									(3,635)	7,503	(12,300)
Amortization of premium and accretion of discount, net									(1,560)	3,956	295
Changes in assets and liabilities:
Reinsurance balances receivable									30,039	(120,620)	(86,606)
Deferred acquisition costs, net									49,125	54,951	(37,175)
Increase (Decrease) in Prepaid Reinsurance Premiums									607	(16,503)	(354)
Increase (Decrease) in Reinsurance Recoverable									(3,489)	(918)	(1,112)
Other assets									634	(7,408)	3,657
Interest and dividends receivable, net									(862)	(2,716)	3,565
Unearned premium reserves									(78,168)	(46,582)	92,442
Loss and loss adjustment expense reserves									(157,849)	(225,670)	(97,922)
Accounts payable and accrued expenses									7,189	(30,172)	33,445
Reinsurance balances payable									11,964	28,728	(1,463)
Amounts due from (to) affiliates											7,660
Amounts due to affiliates									(6,150)	(2,594)
Net cash provided by (used in) operating activities									152,282	26,429	(57,095)
Proceeds from redemptions from related party investment fund									760,000	142,968
Investing activities
Contributions to related party investment fund									(87,000)	(136,626)
Purchases of investments									(327,463)	(3,483,319)	(3,099,525)
Change in participation agreement with related party investment fund									(2,297)	(20,852)
Proceeds from sales and maturities of investments									446,206	3,475,515	3,228,251
Purchases of investments to cover short sales										(853,798)	(791,753)
Proceeds from short sales of investments										800,508	1,048,552
Change in due to/from brokers, net									1,411	482,778	(149,898)
Increase (decrease) in securities sold under an agreement to repurchase										(29,618)	29,618
Contributed capital to subsidiaries									0	0
Proceeds from Contributed Capital									15,000	10,000
Net cash provided by investing activities									805,857	387,556	265,245
Financing activities
Proceeds from issuance of Third Point Re common shares, net of costs									0		0
Payments Related to Tax Withholding for Share-based Compensation									0	0
Purchases of Third Point Re common shares under share repurchase program										0	0
Net proceeds from deposit liability contracts									10,832	9,790	19,113
Change in total noncontrolling interests in related party, net										(97,950)	73,979
Dividend received by (paid to) parent									(28,349)	(161,800)	(59,300)
Net cash provided by (used in) financing activities									(17,517)	(249,960)	33,792
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect									940,622	164,025	241,942
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	1,653,772				713,150				1,653,772	713,150	549,125	307,183
Eliminations
Operating activities
Net income (loss)									(225,854)	340,101	(305,340)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Equity in earnings of subsidiaries									225,854	(340,101)	305,340
Share compensation expense									0	0	0
Net interest expense (income) on deposit liabilities									0	0	0
Unrealized Gain (Loss) on Investments											0
Net Realized and Unrealized Gain (Loss) on Trading Securities									0	0
Net realized and unrealized (gain) loss on investment in related party investment fund									0	0
Foreign exchange (gains) losses									0	0	0
Amortization of premium and accretion of discount, net									0	0	0
Changes in assets and liabilities:
Reinsurance balances receivable									0	0	0
Deferred acquisition costs, net									0	0	0
Increase (Decrease) in Prepaid Reinsurance Premiums									0	0	0
Increase (Decrease) in Reinsurance Recoverable									0	0	0
Other assets									0	0	0
Interest and dividends receivable, net									0	0	0
Unearned premium reserves									0	0	0
Loss and loss adjustment expense reserves									0	0	0
Accounts payable and accrued expenses									0	0	0
Reinsurance balances payable									0	0	0
Amounts due from (to) affiliates											0
Amounts due to affiliates									0	0
Net cash provided by (used in) operating activities									0	0	0
Proceeds from redemptions from related party investment fund									0	0
Investing activities
Contributions to related party investment fund									0	0
Purchases of investments									0	0	0
Change in participation agreement with related party investment fund									0	0
Proceeds from sales and maturities of investments									0	0	0
Purchases of investments to cover short sales										0	0
Proceeds from short sales of investments										0	0
Change in due to/from brokers, net									0	0	0
Increase (decrease) in securities sold under an agreement to repurchase										0	0
Contributed capital to subsidiaries									0	0
Proceeds from Contributed Capital									0	0
Net cash provided by investing activities									0	0	0
Financing activities
Proceeds from issuance of Third Point Re common shares, net of costs									0		0
Payments Related to Tax Withholding for Share-based Compensation									0	0
Purchases of Third Point Re common shares under share repurchase program										0	0
Net proceeds from deposit liability contracts									0	0	0
Change in total noncontrolling interests in related party, net										0	0
Dividend received by (paid to) parent									0	0	0
Net cash provided by (used in) financing activities									0	0	0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect									0	0	0
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	$ 0				$ 0				$ 0	$ 0	$ 0	$ 0

Quarterly Financial Results (De

Quarterly Financial Results (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Revenues
Gross premiums written	$ 134,230	$ 95,388	$ 82,637	$ 319,591	$ 120,063	$ 30,064	$ 49,765	$ 378,360	$ 631,846	$ 578,252	$ 641,620
Gross premiums ceded	(5,964)	(1,116)	(1,473)	(712)	(1,770)	0	(3,479)	(14,646)	(9,265)	(19,895)	(2,475)
Net premiums written	128,266	94,272	81,164	318,879	118,293	30,064	46,286	363,714	622,581	558,357	639,145
Change in net unearned premium reserves	70,126	108,976	64,288	(165,829)	91,177	97,929	95,207	(221,228)	77,561	63,085	(92,087)
Net premiums earned	198,392	203,248	145,452	153,050	209,470	127,993	141,493	142,486	700,142	621,442	547,058
Net investment income (loss)	61,614	(3,138)	69,131	154,953	(276,810)	(3,590)	31,175	(2,208)	282,560	(251,433)	391,953
Total revenues	260,006	200,110	214,583	308,003	(67,340)	124,403	172,668	140,278	982,702	370,009	939,011
Expenses
Loss and loss adjustment expenses incurred, net	140,394	85,703	82,334	95,068	173,088	88,706	84,000	92,620	403,499	438,414	370,058
Acquisition costs, net	61,851	118,271	58,006	57,498	56,668	40,841	57,584	51,405	295,626	206,498	188,904
General and administrative expenses	12,744	9,237	19,650	12,132	7,553	9,511	9,696	9,481	53,763	36,241	53,103
Other expenses	3,625	5,058	3,811	4,125	2,994	(1,362)	3,983	3,995	16,619	9,610	12,674
Interest expense	2,074	2,074	2,051	2,029	2,074	2,074	2,051	2,029	8,228	8,228	8,225
Foreign currency (gain) loss	10,298	(4,921)	(4,260)	2,518	(3,288)	(1,979)	(8,847)	6,611	3,635	(7,503)	12,300
Total expenses	230,986	215,422	161,592	173,370	239,089	137,791	148,467	166,141	781,370	691,488	645,264
Income (loss) before income tax (expense) benefit	29,020	(15,312)	52,991	134,633	(306,429)	(13,388)	24,201	(25,863)	201,332	(321,479)	293,747
Income tax (expense) benefit	718	213	74	(1,718)	8,417	111	(4,390)	(128)	(713)	4,010	(11,976)
Net income (loss)	29,738	(15,099)	53,065	132,915	(298,012)	(13,277)	19,811	(25,991)	200,619	(317,469)	281,771
Net income attributable to noncontrolling interests in related party	0	0	0	0	0	(4)	(209)	(10)	0	(223)	(3,973)
Net income (loss) available to Third Point Re common shareholders	$ 29,738	$ (15,099)	$ 53,065	$ 132,915	$ (298,012)	$ (13,281)	$ 19,602	$ (26,001)	$ 200,619	$ (317,692)	$ 277,798
Earnings (loss) per share available to Third Point Re common shareholders
Basic (in dollars per share)	$ 0.32	$ (0.16)	$ 0.58	$ 1.45	$ (3.24)	$ (0.14)	$ 0.20	$ (0.26)	$ 2.18	$ (3.27)	$ 2.71
Diluted (in dollars per share)	$ 0.32	$ (0.16)	$ 0.57	$ 1.43	$ (3.24)	$ (0.14)	$ 0.19	$ (0.26)	$ 2.16	$ (3.27)	$ 2.64
Weighted average number of common shares used in the determination of earnings (loss) per share
Basic (in shares)	91,989,469	91,903,556	91,776,870	91,669,810	91,967,831	95,671,385	99,498,901	101,195,747	91,835,990	97,054,315	102,264,094
Diluted (in shares)	92,696,491	91,903,556	92,801,799	92,578,933	91,967,831	95,671,385	102,032,485	101,195,747	92,652,316	97,054,315	105,227,038

Schedule I - Summary of Inves_2

Schedule I - Summary of Investments - Other than Investments in Related Parties (Details) $ in Thousands	Dec. 31, 2019USD ($)
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	$ 133,330
Fair value	129,071
Balance sheet value	129,071
Private Common Equity Securities
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	1,000
Fair value	1,000
Balance sheet value	1,000
Private preferred equity securities
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	3,000
Fair value	3,000
Balance sheet value	3,000
Equity Securities, Investment Summary [Member]
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	4,000
Fair value	4,000
Balance sheet value	4,000
U.S. Treasury securities
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	101,413
Fair value	101,186
Balance sheet value	101,186
Sovereign debt
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	27,917
Fair value	23,885
Balance sheet value	23,885
Total debt securities
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Line Items]
Cost	129,330
Fair value	125,071
Balance sheet value	$ 125,071

Schedule III - Supplementary _2

Schedule III - Supplementary Insurance Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]
Deferred acquisition costs, net	$ 154,717	$ 203,842	$ 258,793
Loss and loss adjustment expense reserves	1,111,692	937,157	720,570
Unearned premium	524,768	602,936	649,518
Net premiums earned	700,142	621,442	547,058
Net investment income	282,560	(251,433)	391,953
Other expenses	16,619	9,610	12,674
Loss and loss adjustment expenses incurred, net	403,499	438,414	370,058
Amortization of deferred acquisition costs, net	295,626	206,498	188,904
Other operating expenses	53,763	36,241	53,103
Net premiums written	622,581	558,357	639,145
Property and Casualty Reinsurance
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]
Deferred acquisition costs, net	154,717	203,842	258,793
Loss and loss adjustment expense reserves	1,111,692	937,157	720,570
Unearned premium	524,768	602,936	649,518
Net premiums earned	700,142	621,442	547,058
Net investment income	0	0	0
Other expenses	0	0	0
Loss and loss adjustment expenses incurred, net	403,499	438,414	370,058
Amortization of deferred acquisition costs, net	295,626	206,498	188,904
Other operating expenses	23,366	18,635	30,656
Net premiums written	622,581	558,357	639,145
Corporate (1)
SEC Schedule, 12-16, Insurance Companies, Supplementary Insurance Information [Line Items]
Deferred acquisition costs, net	0	0	0
Loss and loss adjustment expense reserves	0	0	0
Unearned premium	0	0	0
Net premiums earned	0	0	0
Net investment income	282,560	(251,433)	391,953
Other expenses	16,619	9,610	12,674
Loss and loss adjustment expenses incurred, net	0	0	0
Amortization of deferred acquisition costs, net	0	0	0
Other operating expenses	30,397	17,606	22,447
Net premiums written	$ 0	$ 0	$ 0

Schedule IV - Reinsurance (Deta

Schedule IV - Reinsurance (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Ceded to other companies	$ 5,964	$ 1,116	$ 1,473	$ 712	$ 1,770	$ 0	$ 3,479	$ 14,646	$ 9,265	$ 19,895	$ 2,475
Assumed from other companies	134,230	95,388	82,637	319,591	120,063	30,064	49,765	378,360	631,846	578,252	641,620
Net premiums written	$ 128,266	$ 94,272	$ 81,164	$ 318,879	$ 118,293	$ 30,064	$ 46,286	$ 363,714	622,581	558,357	639,145
Property and Casualty Reinsurance
SEC Schedule, 12-17, Insurance Companies, Reinsurance [Line Items]
Direct gross premiums written									0	0	0
Ceded to other companies									9,265	19,895	2,475
Assumed from other companies									631,846	578,252	641,620
Net premiums written									$ 622,581	$ 558,357	$ 639,145
Percentage of amount assumed to net									99.00%	97.00%	100.00%