SiriusPoint (SPNT) 10-Q 31 Jul 18 2018 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Jul. 30, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	Third Point Reinsurance Ltd.
Entity Central Index Key	1,576,018
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2,018
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		99,627,399

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets
Equity securities, trading, at fair value (cost - $2,065,215; 2017 - $1,868,735)	$ 2,427,768	$ 2,283,050
Debt securities, trading, at fair value (cost - $674,673; 2017 - $711,322)	617,913	675,158
Other investments, at fair value	52,444	37,731
Total investments in securities	3,098,125	2,995,939
Cash and cash equivalents	17,451	8,197
Restricted cash and cash equivalents	569,968	541,136
Due from brokers	258,764	305,093
Derivative assets, at fair value	34,738	73,372
Interest and dividends receivable	4,385	3,774
Reinsurance balances receivable	631,952	476,008
Deferred acquisition costs, net	264,408	258,793
Unearned premiums ceded	17,606	1,049
Loss and loss adjustment expenses recoverable	1,414	1,113
Other assets	10,808	7,320
Total assets	4,909,619	4,671,794
Liabilities
Accounts payable and accrued expenses	12,044	34,632
Reinsurance balances payable	74,013	41,614
Deposit liabilities	129,700	129,133
Unearned premium reserves	792,096	649,518
Loss and loss adjustment expense reserves	791,313	720,570
Securities sold, not yet purchased, at fair value	443,216	394,278
Securities sold under an agreement to repurchase	0	29,618
Due to brokers	926,588	770,205
Derivative liabilities, at fair value	12,380	14,503
Performance fee payable to related party	4,641	0
Interest and dividends payable	5,718	4,275
Senior notes payable, net of deferred costs	113,821	113,733
Total liabilities	3,305,530	2,902,079
Commitments and contingent liabilities
Redeemable noncontrolling interests in related party	7,179	108,219
Shareholders’ equity
Preference shares (par value $0.10; authorized, 30,000,000; none issued)	0	0
Common shares (Issued: 2018 - 99,627,399; 2017 - 107,227,347; Outstanding: 2018 - 99,627,399; 2017 - 103,282,427)	9,963	10,723
Treasury Stock, Value	0	(48,253)
Additional paid-in capital	994,170	1,099,599
Retained earnings	587,621	594,020
Shareholders’ equity attributable to Third Point Re common shareholders	1,591,754	1,656,089
Noncontrolling interests in related party	5,156	5,407
Total shareholders’ equity	1,596,910	1,661,496
Total liabilities, noncontrolling interests and shareholders’ equity	$ 4,909,619	$ 4,671,794

Condensed Consolidated Balance3

Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Assets
Equity securities, trading, cost	$ 2,065,215	$ 1,868,735
Debt securities, trading, cost	$ 674,673	$ 711,322
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 share, par value (in dollars per share)	$ 0.10	$ 0.10
Common share, shares authorized (in shares)	300,000,000	300,000,000
Common share, shares issued (in shares)	99,627,399	107,227,347
Common share, shares outstanding (in shares)	99,627,399	103,282,427
Treasury Stock, Shares	0	3,944,920

Condensed Consolidated Statemen

Condensed Consolidated Statements of Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues
Gross premiums written	$ 49,765	$ 156,564	$ 428,125	$ 302,918
Gross premiums ceded	(3,479)	(1,425)	(18,125)	(2,550)
Net premiums written	46,286	155,139	410,000	300,368
Change in net unearned premium reserves	95,207	18,419	(126,021)	11,199
Net premiums earned	141,493	173,558	283,979	311,567
Net investment income before management and performance fees to related parties	45,668	140,631	53,507	308,466
Management and performance fees to related parties	(14,493)	(33,306)	(24,540)	(72,631)
Net investment income	31,175	107,325	28,967	235,835
Total revenues	172,668	280,883	312,946	547,402
Expenses
Loss and loss adjustment expenses incurred, net	84,000	107,379	176,620	193,274
Acquisition costs, net	57,584	68,641	108,989	123,093
General and administrative expenses	9,696	15,014	19,177	25,586
Other expenses	3,983	2,105	7,978	5,006
Interest expense	2,051	2,051	4,080	4,077
Foreign exchange (gains) losses	(8,847)	4,781	(2,236)	4,796
Total expenses	148,467	199,971	314,608	355,832
Income (loss) before income tax expense	24,201	80,912	(1,662)	191,570
Income tax expense	(4,390)	(5,307)	(4,518)	(10,605)
Net income (loss)	19,811	75,605	(6,180)	180,965
Net income attributable to noncontrolling interests in related party	(209)	(1,027)	(219)	(2,201)
Net income (loss) available to Third Point Re common shareholders	$ 19,602	$ 74,578	$ (6,399)	$ 178,764
Earnings (loss) per share available to Third Point Re common shareholders
Basic earnings (loss) per share available to Third Point Re common share holders (in dollars per share)	$ 0.20	$ 0.73	$ (0.06)	$ 1.73
Diluted earnings (loss) per share available to Third Point Re common share holders (in dollars per share)	$ 0.19	$ 0.71	$ (0.06)	$ 1.70
Weighted average number of common shares used in the determination of earnings (loss) per share
Basic (in shares)	99,498,901	102,283,844	100,342,636	103,144,078
Diluted (in shares)	102,032,485	104,569,226	100,342,636	105,149,710

Condensed Consolidated Stateme5

Condensed 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 period at Dec. 31, 2016		$ 10,650	$ (7,389)	$ 1,094,568	$ 316,222
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common shares, net		83		915
Common shares repurchased and retired		0		0
Repurchase of common shares			$ (40,864)
Retirement of treasury shares	0		0
Share compensation expense				3,374
Net income (loss)	$ 180,965				180,965
Net income attributable to noncontrolling interests in related party	(2,201)				(2,201)
Balance. end of period at Jun. 30, 2017	1,576,132	10,733	$ (48,253)	1,098,857	494,986	$ 19,809
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shareholders’ equity attributable to Third Point Re common shareholders	1,556,323
Shareholders’ equity attributable to Third Point Re common shareholders	1,656,089
Balance, beginning of period at Dec. 31, 2017	$ 1,661,496	10,723	(48,253)	1,099,599	594,020
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of common shares, net		67		(141)
Common shares repurchased and retired		(827)		(107,846)
Repurchase of common shares			$ 0
Retirement of treasury shares	8,269,193		48,253,000
Share compensation expense				2,558
Net income (loss)	$ (6,180)				(6,180)
Net income attributable to noncontrolling interests in related party	(219)
Balance. end of period at Jun. 30, 2018	1,596,910	$ 9,963	$ 0	$ 994,170	$ 587,621	$ 5,156
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shareholders’ equity attributable to Third Point Re common shareholders	$ 1,591,754

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Statement of Cash Flows [Abstract]
Net income (loss)	$ (6,180)	$ 180,965
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Share compensation expense	2,558	3,374
Net interest expense on deposit liabilities	2,449	312
Net unrealized (gain) loss on investments and derivatives	95,513	(128,168)
Net realized gain on investments and derivatives	(130,500)	(154,504)
Net foreign exchange (gains) losses	(2,236)	4,796
Amortization of premium and accretion of discount, net	2,913	(122)
Changes in assets and liabilities:
Reinsurance balances receivable	(157,498)	(85,733)
Deferred acquisition costs, net	(5,615)	18,425
Unearned premiums ceded	(16,557)	(1,938)
Loss and loss adjustment expenses recoverable	(301)	(1,712)
Other assets	(3,537)	6,158
Interest and dividends receivable, net	832	2,953
Unearned premium reserves	142,578	(9,261)
Loss and loss adjustment expense reserves	(74,655)	(63,769)
Accounts payable and accrued expenses	(22,564)	7,549
Reinsurance balances payable	32,208	22,237
Performance fee payable to related party	4,641	53,455
Net cash provided by (used in) operating activities	13,359	(17,445)
Investing activities
Purchases of investments	(2,180,138)	(1,712,929)
Proceeds from sales of investments	2,156,754	1,966,027
Purchases of investments to cover short sales	(590,113)	(306,237)
Proceeds from short sales of investments	628,913	462,066
Change in due to/from brokers, net	202,712	(261,994)
Decrease in securities sold under an agreement to repurchase	(29,618)	0
Net cash provided by investing activities	188,510	146,933
Financing activities
Proceeds from issuance of Third Point Re common shares, net of costs	0	998
Taxes paid on withholding shares	(74)	0
Purchases of Third Point Re common shares under share repurchase program	(60,420)	(40,864)
Decrease in deposit liabilities, net	(1,779)	(124)
Change in total noncontrolling interests in related party, net	(101,510)	(18,066)
Net cash used in financing activities	(163,783)	(58,056)
Net increase in cash, cash equivalents and restricted cash	38,086	71,432
Cash, cash equivalents and restricted cash at beginning of period	549,333	308,891
Cash, cash equivalents and restricted cash at end of period	587,419	380,323
Supplementary information
Interest paid in cash	13,939	10,262
Income taxes paid in cash	$ 5,852	$ 4,954

Organization

Organization	6 Months Ended
	Jun. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Organization	Third Point Reinsurance Ltd. (together with its wholly owned 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 specialty 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 U.S. domiciled 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 unaudited condensed consolidated financial statements include the results of Third Point Re and its wholly owned subsidiaries (together, the “Company”) and have been prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 in Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In addition, the year-end balance sheet data was derived from audited financial statements but does not include all disclosures required by U.S. GAAP. This Quarterly Report should be read in conjunction with the audited financial statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017 (the “ 2017 10-K”), as filed with the U.S. Securities and Exchange Commission on March 1, 2018. In the opinion of management, these unaudited condensed consolidated financial statements reflect all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation of the Company’s financial position and results of operations as at the end of and for the periods presented. All significant intercompany accounts and transactions have been eliminated. The results for the six months ended June 30, 2018 are not necessarily indicative of the results expected for the full calendar year. Tabular amounts are in U.S. Dollars in thousands, except share amounts, unless otherwise noted.

Significant accounting policies

Significant accounting policies	6 Months Ended
	Jun. 30, 2018
Accounting Policies [Abstract]
Significant accounting policies	There have been no material changes to the Company’s significant accounting policies as described in its 2017 10-K. Prior year changes in the presentation of condensed consolidated financial statements The Company had previously included unearned premium ceded and loss and loss adjustment expenses recoverable in other assets in the condensed consolidated balance sheets and changes in these balances in the condensed consolidated statements of cash flows. These balances have grown and are now disclosed as separate line items in the condensed consolidated balance sheets and changes in these balances in the condensed consolidated statements of cash flows. Recently issued accounting standards Issued and effective as of June 30, 2018 In January 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update 2016-01, Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities (ASU 2016-01). ASU 2016-01 is intended to provide users of financial statements with more useful information on the recognition, measurement, presentation and disclosure of financial instruments. The new standard affects all entities that hold financial assets or owe financial liabilities. ASU 2016-01 is effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. This new accounting standard did not have a material impact on the Company’s condensed consolidated financial statements since all of the Company’s investments are valued at fair market value as the Company's investments are classified as "trading securities" and therefore the change in unrealized is included in the consolidated statement of income (loss). In August 2016, the FASB issued Accounting Standards Update 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (ASU 2016-15). ASU 2016-15 is intended at reducing diversity in practice and addresses eight specific issues in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. ASU 2016-15 is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. To date, the Company has not entered into any of the eight types of transactions addressed in ASU 2016-15. As a result, the adoption of this standard did not have a material impact on the Company’s condensed consolidated financial statements. In November 2016, the FASB issued Accounting Standards Update 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (ASU 2016-18). ASU 2016-18 clarifies guidance on the classification and presentation of restricted cash in the statement of cash flows, specifically, the Company should include in its cash and cash-equivalent balances in the statement of cash flows those amounts that are deemed to be restricted cash and cash equivalents. An entity with a material balance of amounts generally described as restricted cash and cash equivalents must disclose information about the nature of the restrictions. ASU 2016-18 is effective for fiscal years beginning after December 15, 2017, and interim periods therein. As a result of the adoption of ASU 2016-18, the Company retrospectively classified its restricted cash and cash equivalents within the condensed consolidated statement of cash flows and has included additional disclosures in accordance with ASU 2016-18 in its condensed consolidated financial statements. Prior to adoption, changes in restricted cash had been presented within cash flow from investing activities. Consequently, the condensed consolidated statement of cash flows for the six months ended June 30, 2017 includes adjustments to increase net cash used in investing activities by $73.1 million . In May 2017, the FASB issued Accounting Standards Update 2017-09, Compensation — Stock Compensation (Topic 718): Scope of Modification Accounting (ASU 2017-09). ASU 2017-09 is intended to reduce diversity in practice and subsequent to its adoption, an entity will not apply modification accounting as a result of changes to terms and conditions of a share-based payment award if certain conditions are met. The amendments in ASU 2019-09 are effective for all entities for annual periods, and interim periods within those annual periods, beginning after December 15, 2017. This new accounting standard did not have a material impact on the Company’s condensed consolidated financial statements. Issued but not yet effective as of June 30, 2018 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 will require 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. The Company is currently evaluating the impact of this guidance; however, it is not expected to have a material impact on the Company’s condensed 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). The update makes improvements to clarify or to correct unintended application of guidance in ASC 842. Those items generally are not expected to have a significant effect on the Company. ASU 2018-18 will be effective when the Company adopts ASU 2016-02 in 2019. 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 is currently evaluating the impact of this guidance on the Company’s condensed consolidated financial statements. In March 2017, the FASB issued Accounting Standards Update 2017-08, Premium Amortization on Purchased Callable Debt Securities (ASU 2017-08). ASU 2017-08 is intended to enhance the accounting for the amortization of premiums for purchased callable debt securities.The amendments are effective for interim and annual periods beginning after December 15, 2018. The Company is currently evaluating the impact of this guidance on the Company’s condensed consolidated financial statements. In July 2017, the FASB issued Accounting Standards Update 2017-11, (Part I) Accounting for Certain Financial Instruments With Down Round Features, (Part II) Replacement of the Indefinite Deferral for Mandatorily Redeemable Financial Instruments of Certain Nonpublic Entities and Certain Mandatorily Redeemable Noncontrolling Interests With a Scope Exception (ASU 2017-11). ASU 2017-11 is intended to reduce the complexity associated with accounting for certain financial instruments with characteristics of liabilities and equity. Specifically, a down round feature would no longer cause a freestanding equity-linked financial instrument (or an embedded conversion option) to be accounted for as a derivative liability at fair value with changes in fair value recognized in current earnings. In addition, ASU 2017-11 re-characterizes the indefinite deferral of certain provisions of Topic 480 to a scope exception. The recharacterization has no accounting effect. The amendments are effective for interim and annual periods beginning after December 15, 2018. The Company does not currently have financial instruments with down round features, therefore, the Company does not expect any impact to the Company’s condensed consolidated financial statements.
Recently issued accounting standards	Recently issued accounting standards Issued and effective as of June 30, 2018 In January 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update 2016-01, Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities (ASU 2016-01). ASU 2016-01 is intended to provide users of financial statements with more useful information on the recognition, measurement, presentation and disclosure of financial instruments. The new standard affects all entities that hold financial assets or owe financial liabilities. ASU 2016-01 is effective for public business entities for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. This new accounting standard did not have a material impact on the Company’s condensed consolidated financial statements since all of the Company’s investments are valued at fair market value as the Company's investments are classified as "trading securities" and therefore the change in unrealized is included in the consolidated statement of income (loss). In August 2016, the FASB issued Accounting Standards Update 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments (ASU 2016-15). ASU 2016-15 is intended at reducing diversity in practice and addresses eight specific issues in how certain cash receipts and cash payments are presented and classified in the statement of cash flows. ASU 2016-15 is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. To date, the Company has not entered into any of the eight types of transactions addressed in ASU 2016-15. As a result, the adoption of this standard did not have a material impact on the Company’s condensed consolidated financial statements. In November 2016, the FASB issued Accounting Standards Update 2016-18, Statement of Cash Flows (Topic 230): Restricted Cash (ASU 2016-18). ASU 2016-18 clarifies guidance on the classification and presentation of restricted cash in the statement of cash flows, specifically, the Company should include in its cash and cash-equivalent balances in the statement of cash flows those amounts that are deemed to be restricted cash and cash equivalents. An entity with a material balance of amounts generally described as restricted cash and cash equivalents must disclose information about the nature of the restrictions. ASU 2016-18 is effective for fiscal years beginning after December 15, 2017, and interim periods therein. As a result of the adoption of ASU 2016-18, the Company retrospectively classified its restricted cash and cash equivalents within the condensed consolidated statement of cash flows and has included additional disclosures in accordance with ASU 2016-18 in its condensed consolidated financial statements. Prior to adoption, changes in restricted cash had been presented within cash flow from investing activities. Consequently, the condensed consolidated statement of cash flows for the six months ended June 30, 2017 includes adjustments to increase net cash used in investing activities by $73.1 million . In May 2017, the FASB issued Accounting Standards Update 2017-09, Compensation — Stock Compensation (Topic 718): Scope of Modification Accounting (ASU 2017-09). ASU 2017-09 is intended to reduce diversity in practice and subsequent to its adoption, an entity will not apply modification accounting as a result of changes to terms and conditions of a share-based payment award if certain conditions are met. The amendments in ASU 2019-09 are effective for all entities for annual periods, and interim periods within those annual periods, beginning after December 15, 2017. This new accounting standard did not have a material impact on the Company’s condensed consolidated financial statements. Issued but not yet effective as of June 30, 2018 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 will require 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. The Company is currently evaluating the impact of this guidance; however, it is not expected to have a material impact on the Company’s condensed 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). The update makes improvements to clarify or to correct unintended application of guidance in ASC 842. Those items generally are not expected to have a significant effect on the Company. ASU 2018-18 will be effective when the Company adopts ASU 2016-02 in 2019. 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 is currently evaluating the impact of this guidance on the Company’s condensed consolidated financial statements. In March 2017, the FASB issued Accounting Standards Update 2017-08, Premium Amortization on Purchased Callable Debt Securities (ASU 2017-08). ASU 2017-08 is intended to enhance the accounting for the amortization of premiums for purchased callable debt securities.The amendments are effective for interim and annual periods beginning after December 15, 2018. The Company is currently evaluating the impact of this guidance on the Company’s condensed consolidated financial statements. In July 2017, the FASB issued Accounting Standards Update 2017-11, (Part I) Accounting for Certain Financial Instruments With Down Round Features, (Part II) Replacement of the Indefinite Deferral for Mandatorily Redeemable Financial Instruments of Certain Nonpublic Entities and Certain Mandatorily Redeemable Noncontrolling Interests With a Scope Exception (ASU 2017-11). ASU 2017-11 is intended to reduce the complexity associated with accounting for certain financial instruments with characteristics of liabilities and equity. Specifically, a down round feature would no longer cause a freestanding equity-linked financial instrument (or an embedded conversion option) to be accounted for as a derivative liability at fair value with changes in fair value recognized in current earnings. In addition, ASU 2017-11 re-characterizes the indefinite deferral of certain provisions of Topic 480 to a scope exception. The recharacterization has no accounting effect. The amendments are effective for interim and annual periods beginning after December 15, 2018. The Company does not currently have financial instruments with down round features, therefore, the Company does not expect any impact to the Company’s condensed consolidated financial statements.

Restricted cash and cash equiva

Restricted cash and cash equivalents and restricted investments	6 Months Ended
	Jun. 30, 2018
Cash and Cash Equivalents [Abstract]
Restricted cash and cash equivalents and restricted investments	The following table provides a reconciliation of cash and cash equivalents, restricted cash and restricted investments as of June 30, 2018 and December 31, 2017 : June 30, December 31, Cash and cash equivalents $ 17,451 $ 8,197 Restricted cash securing letter of credit facilities (1) 240,545 250,487 Restricted cash securing other reinsurance contracts (2) 329,423 290,649 Total cash, cash equivalents and restricted cash (3) 587,419 549,333 Restricted investments securing other reinsurance contracts (2) 310,205 326,429 Total cash, cash equivalents, restricted cash and restricted investments $ 897,624 $ 875,762 (1) Restricted cash securing letter of credit facilities primarily pertains to letters of credit issued to clients and cash securing these obligations that the Company will not be released until the underlying reserves have been settled. The time period for which the Company expects these letters of credit to be in place varies from contract to contract, but can last several years. (2) Restricted cash and restricted investments securing other 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 all underlying risks have expired or have been settled. Restricted investments include certain investments in debt securities including U.S. Treasury securities and sovereign debt. 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 condensed consolidated statements of cash flows.

Investments

Investments	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Investments	The Company’s investments are managed by its investment manager, Third Point LLC (“Third Point LLC” or the “Investment Manager”), under long-term investment management contracts. The Company directly owns the investments that are held in separate accounts and managed by Third Point LLC. The following is a summary of the separate accounts managed by Third Point LLC: June 30, December 31, Assets Total investments in securities $ 3,097,918 $ 2,995,097 Cash and cash equivalents 43 8 Restricted cash and cash equivalents 569,968 541,136 Due from brokers 258,764 305,093 Derivative assets, at fair value 34,738 73,372 Interest and dividends receivable 4,385 3,774 Total assets 3,965,816 3,918,480 Liabilities and noncontrolling interests in related party Accounts payable and accrued expenses 3,070 5,137 Securities sold, not yet purchased 443,216 394,278 Securities sold under an agreement to repurchase — 29,618 Due to brokers 926,588 770,205 Derivative liabilities, at fair value 12,380 14,503 Performance fee payable to related party 4,641 — Interest and dividends payable 2,696 1,218 Total noncontrolling interests in related party (1) 12,335 113,626 Total liabilities and noncontrolling interests in related party 1,404,926 1,328,585 Total net investments managed by Third Point LLC $ 2,560,890 $ 2,589,895 (1) See Note 17 for additional information. Fair Value Measurements The Company’s Investment Manager has a formal valuation policy that sets forth the pricing methodology for investments to be used in determining the fair value of each security in the Company’s portfolio. The valuation policy is updated and approved at least on an annual basis by Third Point LLC’s valuation committee (the “Committee”). The Committee meets monthly and is comprised of officers and employees who are senior business management personnel of Third Point LLC. The Committee’s role is to review and verify the propriety and consistency of the valuation methodology to determine the fair value of investments. The Committee also reviews any due diligence performed and approves any changes to current or potential external pricing vendors. Investments are carried at fair value. The fair values of investments are estimated using prices obtained from third-party pricing services, when available. However, situations may arise where the Company believes that the fair value provided by the third-party pricing service does not represent current market conditions. In those situations, Third Point LLC may use dealer quotes to value the investments. The methodology for valuation is generally determined based on the investment’s asset class per the Company’s Investment Manager’s valuation policy. For investments where fair values from pricing services or brokers are unavailable, fair values are estimated using information obtained by the Company’s Investment Manager. 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. The key inputs for corporate, government and sovereign bond valuation are coupon frequency, coupon rate and underlying bond spreads. The key inputs for ABS are yield, probability of default, loss severity and prepayment. Key inputs for over-the-counter (“OTC”) valuations vary based on the type of underlying security on which the contract was written: • The key inputs for most OTC option contracts include notional, strike price, maturity, payout structure, current foreign exchange forward and spot rates, current market price of the underlying security and volatility of the underlying security. • The key inputs for most forward contracts include notional, maturity, forward rate, spot rate, various interest rate curves and discount factor. • The key inputs for swap valuation will vary based on the type of underlying security on which the contract was written. Generally, the key inputs for most swap contracts include notional, swap period, fixed rate, credit or interest rate curves, current market or spot price of the underlying security and the volatility of the underlying security. Situations may arise when market quotations or valuations provided by external pricing vendors are available but the fair value may not represent current market conditions. In those cases, Third Point LLC may substitute valuations provided by external pricing vendors with multiple broker-dealer quotations. Securities listed on a national securities exchange or quoted on NASDAQ are valued at their last sales price as of the last business day of the period. Listed securities with no reported sales on such date and OTC securities are valued at their last closing bid price if held long by the Company, and last closing ask price if held short by the Company. As of June 30, 2018 , securities valued at $158.2 million ( December 31, 2017 - $ 234.4 million), representing 5.1% ( December 31, 2017 - 7.6% ) of investments in securities and derivative assets, and $2.1 million ( December 31, 2017 - $ 2.1 million), representing 0.5% ( December 31, 2017 - 0.5% ) of securities sold, not yet purchased and derivative liabilities, are valued based on broker quotes. Private securities, real estate and related debt investments are those not registered for public sale and are carried at an estimated fair value at the end of the period, as determined by Third Point LLC. Valuation techniques used by Third Point LLC 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. The third party valuation firms provide written reports documenting their recommended valuation as of the determination date for the specified investments. As of June 30, 2018 , the Company had $90.8 million ( December 31, 2017 - $ 83.4 million) of investments fair valued by the Company’s Investment Manager representing approximately 2.9% ( December 31, 2017 - 2.7% ) of total investments in securities and derivative assets of which 98.3% were also separately valued by third party valuation firms using information obtained from the Company’s Investment Manager. As a result of the inherent uncertainty of valuation for private securities, the estimated fair value may differ materially from the value that would have been used had a ready market existed for these investments. The actual value at which these securities could be sold or settled with a willing buyer or seller may differ from the Company’s estimated fair values depending on a number of factors including, but not limited to, current and future economic conditions, the quantity sold or settled, the presence of an active market and the availability of a willing buyer or seller. The Company’s free standing derivatives are recorded at fair value, and are included in the condensed consolidated balance sheets in derivative assets and derivative liabilities. Third Point LLC values exchange-traded derivatives at their last sales price on the exchange where they are primarily traded. OTC derivatives, which include swap, option, swaption, forward, future and contract for differences, are valued by an industry recognized third party valuation vendor when available; otherwise, fair values are obtained from broker quotes that are based on pricing models that consider the time value of money, volatility, and the current market and contractual prices of the underlying financial instruments. The Company values its investments in limited partnerships at fair value, which is estimated based on the Company’s share of the net asset value (“NAV”) of the limited partnerships as provided by the investment managers of the underlying investment funds. The resulting net gains or net losses are reflected in the condensed 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. These investments are non-redeemable and distributions are made by the investment funds as underlying investments are monetized. As of June 30, 2018 and December 31, 2017 , the Company’s asset-backed securities (“ABS”) holdings were as follows: June 30, 2018 December 31, 2017 Reperforming loans $ 109,117 60.4 % $ 160,354 71.1 % Market place loans 60,664 33.6 % 52,584 23.3 % Other (1) 10,990 6.0 % 12,561 5.6 % $ 180,771 100.0 % $ 225,499 100.0 % (1) Other includes: U.S. Alt-A positions, collateralized debt obligations, commercial mortgage-backed securities, non-U.S. RMBS and aircraft ABS. As of June 30, 2018 , all of the Company’s ABS holdings were private-label issued, non-investment grade securities, and none of these securities were guaranteed by a government sponsored entity. These investments are valued using broker quotes or a recognized third-party pricing vendor. All of these classes of ABS are sensitive to changes in interest rates and any resulting change in the rate at which borrowers sell their properties, refinance, or otherwise pre-pay their loans. As an investor in these classes of ABS, the Company may be exposed to the credit risk of underlying borrowers not being able to make timely payments on loans or the likelihood of borrowers defaulting on their loans. In addition, the Company may be exposed to significant market and liquidity risks. The following tables present the Company’s investments, categorized by the level of the fair value hierarchy as of June 30, 2018 and December 31, 2017 : June 30, 2018 Quoted prices in active markets Significant other observable inputs Significant unobservable inputs Total (Level 1) (Level 2) (Level 3) Assets Equity securities $ 2,360,825 $ 5,812 $ — $ 2,366,637 Private common equity securities — — 4,362 4,362 Private preferred equity securities — — 56,769 56,769 Total equities 2,360,825 5,812 61,131 2,427,768 Asset-backed securities — 152,632 28,139 180,771 Bank debt — 22,566 — 22,566 Corporate bonds — 43,207 9,968 53,175 Municipal bonds — 40,432 — 40,432 U.S. Treasury securities — 236,600 — 236,600 Sovereign debt — 83,244 — 83,244 Other debt securities — 1,125 — 1,125 Total debt securities — 579,806 38,107 617,913 Options 962 8,443 — 9,405 Rights and warrants 214 1 424 639 Real estate — — 7,351 7,351 Trade claims — 3,068 — 3,068 Total other investments 1,176 11,512 7,775 20,463 Derivative assets (free standing) — 27,852 6,886 34,738 $ 2,362,001 $ 624,982 $ 113,899 3,100,882 Investments in funds valued at NAV 31,981 Total assets $ 3,132,863 Liabilities Equity securities $ 417,577 $ — $ — $ 417,577 Corporate bonds — 20,181 — 20,181 Options 1,396 4,062 — 5,458 Total securities sold, not yet purchased 418,973 24,243 — 443,216 Derivative liabilities (free standing) — 10,541 1,839 12,380 Derivative liabilities (embedded) — — 164 164 Total liabilities $ 418,973 $ 34,784 $ 2,003 $ 455,760 December 31, 2017 Quoted prices in active markets Significant other observable inputs Significant unobservable inputs Total (Level 1) (Level 2) (Level 3) Assets Equity securities $ 2,200,379 $ 20,751 $ — $ 2,221,130 Private common equity securities — — 4,794 4,794 Private preferred equity securities — — 57,126 57,126 Total equities 2,200,379 20,751 61,920 2,283,050 Asset-backed securities — 198,191 27,308 225,499 Bank debt — 14,550 — 14,550 Corporate bonds — 67,218 9,868 77,086 U.S. Treasury securities — 249,994 — 249,994 Sovereign debt — 102,569 — 102,569 Other debt securities — 4,747 713 5,460 Total debt securities — 637,269 37,889 675,158 Options 1,973 2,978 — 4,951 Rights and warrants — 168 435 603 Real estate — — 6,831 6,831 Trade claims — 7,496 — 7,496 Total other investments 1,973 10,642 7,266 19,881 Derivative assets (free standing) — 73,372 — 73,372 $ 2,202,352 $ 742,034 $ 107,075 3,051,461 Investments in funds valued at NAV 17,850 Total assets $ 3,069,311 Liabilities Equity securities $ 364,215 $ — $ — $ 364,215 Corporate bonds — 21,699 — 21,699 Options 2,668 5,696 — 8,364 Total securities sold, not yet purchased 366,883 27,395 — 394,278 Derivative liabilities (free standing) — 12,418 2,085 14,503 Derivative liabilities (embedded) — — 171 171 Total liabilities $ 366,883 $ 39,813 $ 2,256 $ 408,952 During the six months ended June 30, 2018 , the Company made $0.2m ( December 31, 2017 - $nil ) of reclassifications of assets or liabilities between Levels 1 and 2. The total change in unrealized gains (losses) on equity and debt securities held at the three months ended June 30, 2018 were $2.9 million and $(17.7) million , respectively ( 2017 - $71.2 million and $(10.8) million , respectively). The total change in unrealized gains (losses) on equity and debt securities held at the six months ended June 30, 2018 were $(21.0) million and $(18.4) million , respectively ( 2017 - $176.3 million and $(9.1) million , respectively). The following table presents the reconciliation of all investments measured at fair value using Level 3 inputs for the three and six months ended June 30, 2018 and 2017 : April 1, Transfers in to (out of) Level 3 Purchases Sales Realized and Unrealized Gains (Losses) (1) June 30, Assets Private common equity securities $ 4,352 $ — $ 21 $ — $ (11 ) $ 4,362 Private preferred equity securities 55,231 — 2,350 (977 ) 165 56,769 Asset-backed securities 27,256 3,622 18,350 (21,188 ) 99 28,139 Corporate bonds 10,081 — 512 (817 ) 192 9,968 Rights and warrants 819 (1 ) — (388 ) (6 ) 424 Real estate 6,937 — — — 414 7,351 Derivative assets (free standing) — 8,397 — 390 (1,901 ) 6,886 Total assets $ 104,676 $ 12,018 $ 21,233 $ (22,980 ) $ (1,048 ) $ 113,899 Liabilities Derivative liabilities (free standing) $ (1,996 ) $ 10 $ — $ — $ 147 $ (1,839 ) Derivative liabilities (embedded) (124 ) — — — (40 ) (164 ) Total liabilities $ (2,120 ) $ 10 $ — $ — $ 107 $ (2,003 ) January 1, Transfers in to (out of) Level 3 Purchases Sales Realized and Unrealized Gains (Losses) (1) June 30, Assets Private common equity securities $ 4,794 $ — $ 22 $ — $ (454 ) $ 4,362 Private preferred equity securities 57,126 — 2,509 (992 ) (1,874 ) 56,769 Asset-backed securities 27,308 6,104 30,610 (35,522 ) (361 ) 28,139 Corporate bonds 9,868 — 532 (817 ) 385 9,968 Other debt securities 713 — — (913 ) 200 — Rights and warrants 435 (1 ) 582 (593 ) 1 424 Real estate 6,831 — — (153 ) 673 7,351 Derivative assets (free standing) — 7,701 — 1,499 (2,314 ) 6,886 Total assets $ 107,075 $ 13,804 $ 34,255 $ (37,491 ) $ (3,744 ) $ 113,899 Liabilities Derivative liabilities (free standing) $ (2,085 ) $ 13 $ — $ — $ 233 $ (1,839 ) Derivative liabilities (embedded) (171 ) — — — 7 (164 ) Total liabilities $ (2,256 ) $ 13 $ — $ — $ 240 $ (2,003 ) April 1, Transfers in to (out of) Level 3 Purchases Sales Realized and Unrealized Gains (Losses) (1) June 30, Assets Private common equity securities $ 4,745 $ — $ — $ — $ 30 $ 4,775 Private preferred equity securities 48,350 — 939 (123 ) 1,593 50,759 Asset-backed securities 20,785 15,642 22,038 (20,545 ) (2,209 ) 35,711 Bank debt 8,722 (189 ) 3 (23 ) 1,733 10,246 Corporate bonds 8,984 — 92 (320 ) 339 9,095 Other debt securities — — 3,312 — — 3,312 Total assets $ 91,586 $ 15,453 $ 26,384 $ (21,011 ) $ 1,486 $ 113,898 Liabilities Derivative liabilities (free standing) $ (1,326 ) $ — $ — $ (41 ) $ — $ (1,367 ) Derivative liabilities (embedded) (111 ) — — — (69 ) (180 ) Total liabilities $ (1,437 ) $ — $ — $ (41 ) $ (69 ) $ (1,547 ) January 1, Transfers in to (out of) Level 3 Purchases Sales Realized and Unrealized Gains (Losses) (1) June 30, Assets Private common equity securities $ 4,799 $ — $ — $ — $ (24 ) $ 4,775 Private preferred equity securities 48,834 — 939 (495 ) 1,481 50,759 Asset-backed securities 17,628 20,016 31,958 (32,237 ) (1,654 ) 35,711 Bank debt 8,350 (446 ) 4 (272 ) 2,610 10,246 Corporate bonds 9,255 — 93 (587 ) 334 9,095 Other debt securities — — 3,312 — — 3,312 Total assets $ 88,866 $ 19,570 $ 36,306 $ (33,591 ) $ 2,747 $ 113,898 Liabilities Derivative liabilities (free standing) $ (1,326 ) $ — $ — $ (41 ) $ — $ (1,367 ) Derivative liabilities (embedded) (92 ) — — — (88 ) (180 ) Total liabilities $ (1,418 ) $ — $ — $ (41 ) $ (88 ) $ (1,547 ) (1) Total change in realized and unrealized gains (losses) recorded on Level 3 financial instruments is included in net investment income in the condensed 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 three and six months ended June 30, 2018 were $(2.9) million and $(6.9) million , respectively ( 2017 - $ 1.9 million and $0.6 million , respectively). For assets and liabilities that were transferred into Level 3 during the period, gains (losses) are presented as if the assets or liabilities had been transferred into Level 3 at the beginning of the period; similarly, for assets and liabilities that were transferred out of Level 3 during the period, gains (losses) are presented as if the assets or liabilities had been transferred out of Level 3 at the beginning of the period. The following table summarizes information about the significant unobservable inputs used in determining the fair value of the Level 3 investments held by the Company. Level 3 investments not presented in the table are insignificant or do not have any unobservable inputs to disclose, as they are valued primarily using dealer quotes or at cost. June 30, 2018 Assets Fair value Valuation technique Unobservable input Range Private equity investments $ 4,969 Market approach Volatility 40.0% - 45.0% Multiple 6.5 - 10.0x Real estate 7,054 Discounted cash flow Discount rate 9.5 % Capitalization rate 6.5 % Rights and warrants 424 Discounted cash flow Discount rate 15.5 % Time to exit 5.0 years Market approach Multiple 3.0 - 3.6x December 31, 2017 Assets Fair value Valuation technique Unobservable input Range Private equity investments $ 37,507 Market approach Volatility 35.0% - 65.0% Time to exit 0.5 - 1.8 years Multiple 7.8 - 24.4x Real estate 6,831 Discounted cash flow Discount rate 9.5 % Capitalization rate 6.5% - 10.0% Other debt securities 713 Discounted cash flow Capitalization rate 10.0 % Rights and warrants 433 Discounted cash flow Discount rate 13.5 % Time to exit 5.0 years Market approach Multiple 3.8 - 4.6x Private equity investments T he Company measures the fair value of these investments using a market approach which typically utilizes guideline comparable company trading multiples and/or a discounted cash flow analysis. Under the guideline comparable company multiples approach, the Company determines comparable public companies based on industry, size, developmental stage, strategy, etc., and then calculates a trading multiple for each comparable company. The trading multiple may then be discounted for various considerations as appropriate. The concluded multiple is then applied to the subject company to calculate the value of the subject company. The discounted cash flow model involves using the financial information of the portfolio companies to develop revenue and income projections for the subject company for future years based on information on growth rates relative to the company’s development stage. The enterprise value of the subject company is calculated by discounting the projected cash flows and the terminal value to net present value. The fair value of the company’s debt is reduced from the enterprise value to determine the equity value. Real estate and other debt securities The values of the investments are based upon available information concerning the market for real estate property investments and the underlying assets of the other debt investments. The valuation methods include, but are not limited to the following: (1) forecasts of future net cash flows based on the Investment Manager’s analysis of future earnings from the investment plus anticipated net proceeds from the sale, disposition or resolution of the investment; (2) discounted earnings multiples applied to stabilized income or adjusted earnings from the investment; (3) recent sales of comparable investments. Rights and warrants The values of the investments are based on the valuation techniques discussed in private equity investments above as they relate to the same underlying securities. For the six months ended June 30, 2018 and 2017 , there were no changes in the valuation techniques as they relate to the above.

Securities purchased under an a

Securities purchased under an agreement to sell, securities sold under an agreement to repurchase and securities lending transactions	6 Months Ended
	Jun. 30, 2018
Securities Purchased under Agreements to Resell [Abstract]
Securities purchased under an agreement to sell, securities sold under an agreement to repurchase and securities lending transactions	The Company may enter into repurchase and reverse repurchase agreements with financial institutions in which the financial institution agrees to resell or repurchase securities and the Company agrees to repurchase or resell such securities at a mutually agreed price upon maturity. These agreements are generally collateralized by corporate or government bonds or asset-backed securities. As the Company held only repurchase agreements as of June 30, 2018 , these positions are not impacted by counterparty netting agreements. Interest payable and receivable related to these transactions are included in interest payable and receivable in the condensed consolidated balance sheets. Generally, repurchase and reverse repurchase agreements mature within 30 to 90 days . The Company may lend securities for securities lending transactions or pledge securities and/or cash for securities borrowed transactions. The value of any securities loaned is reflected in investments in securities. Any collateral received is reflected in due to brokers in the condensed consolidated balance sheets. The Company’s repurchase and securities lending agreements may result in credit exposure in the event the counterparty to the transaction is unable to fulfill its contractual obligations. It is the Company’s policy to monitor and control collateral under such agreements. As of June 30, 2018 The following table presents the remaining contractual maturity of the repurchase agreements and securities lending transactions by class of collateral pledged December 31, 2017 : December 31, 2017 Overnights and continuous Up to 30 days 30 - 90 days Greater than 90 days Total Repurchase agreements Asset-backed securities $ — $ 10,774 $ 18,844 $ — $ 29,618

Due from_to brokers

Due from/to brokers	6 Months Ended
	Jun. 30, 2018
Due to and from Broker-Dealers and Clearing Organizations [Abstract]
Due from/to brokers	The Company holds substantially all of its investments through prime brokers pursuant to agreements between the Company and each prime broker. The brokerage arrangements differ from broker to broker, but generally cash and investments in securities are available as collateral against investments in securities sold, not yet purchased and derivative positions, if required. As of June 30, 2018 and December 31, 2017 , the Company’s due from/to brokers were comprised of the following: June 30, December 31, Due from brokers Cash held at brokers $ 247,145 $ 295,467 Receivable from unsettled trades (1) 11,619 9,626 $ 258,764 $ 305,093 Due to brokers Borrowing from prime brokers $ 862,774 $ 759,267 Payable from unsettled trades 63,814 10,938 $ 926,588 $ 770,205 (1) Receivables relating to securities sold by the Company are recorded as receivable from unsettled trades in due from brokers in the Company’s condensed consolidated balance sheets. Due from/to brokers include cash balances maintained with the Company’s prime brokers, receivables and payables from unsettled trades and proceeds from securities sold, not yet purchased. In addition, due from/to brokers includes cash collateral received and posted from OTC and repurchase agreement counterparties. As of June 30, 2018 , the Company’s borrowing from prime brokers includes a total non-U.S. currency balance of $100.3 million ( December 31, 2017 - $70.1 million ). The Company uses prime brokerage borrowing arrangements to provide collateral for its letter of credit facilities and to fund trust accounts securing certain reinsurance contracts. As of June 30, 2018 , the Company had $880.2 million ( December 31, 2017 - $867.6 million ) of restricted cash and investments securing letter of credit facilities and certain reinsurance contracts. Margin debt balances were collateralized by cash held by the broker and certain of the Company’s securities. Margin interest was paid either at the daily broker call rate or based on London Inter-bank Offered Rate. Amounts are borrowed through committed facilities with terms of up to 90 days, secured by assets of the Company held by the prime broker, and incur interest based on the Company’s negotiated rates. This interest expense is reflected in net investment income in the condensed consolidated statements of income (loss) .

Derivatives

Derivatives	6 Months Ended
	Jun. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	The following tables identify the listing currency, fair value and notional amounts of derivative instruments included in the condensed consolidated balance sheets, categorized by primary underlying risk. Balances are presented on a gross basis. As of June 30, 2018 Listing currency (1) Fair Value Notional Amounts (2) Derivative Assets by Primary Underlying Risk Credit Credit Default Swaps - Protection Purchased EUR/USD $ 7,426 $ 72,960 Total Return Swaps - Long Contracts EGP 6,681 6,681 Equity Price Contracts for Differences - Long Contracts BRL/EUR/USD 9,641 104,549 Contracts for Differences - Short Contracts CHF/EUR/JPY 3,062 19,382 Interest Rates Interest Rate Swaptions JPY/USD 452 488,780 Foreign Currency Exchange Rates Foreign Currency Forward Contracts BRL/CHF/CNH/EUR/HKD/JPY 6,386 613,867 Foreign Currency Options - Purchased USD 1,090 69,438 Total Derivative Assets $ 34,738 $ 1,375,657 Listing currency (1) Fair Value Notional Amounts (2) Derivative Liabilities by Primary Underlying Risk Credit Credit Default Swaps - Protection Purchased USD $ 95 $ 17,004 Credit Default Swaps - Protection Sold USD 2,147 5,003 Equity Price Contracts for Differences - Long Contracts BRL/EUR/GBP 3,726 79,109 Contracts for Differences - Short Contracts CHF/EUR/GBP/JPY/SEK/USD 1,528 58,391 Interest Rates Interest Rate Swaptions JPY/USD 89 488,417 Sovereign Debt Futures - Short Contracts EUR 644 106,600 Total Return Swaps - Long Contracts ARS 3,277 19,175 Foreign Currency Exchange Rates Foreign Currency Forward Contracts ARS/HKD/SAR 347 221,008 Foreign Currency Options - Sold USD 527 107,312 Total Derivative Liabilities (free standing) $ 12,380 $ 1,102,019 Embedded derivative liabilities in reinsurance contracts (3) USD $ 164 $ 20,000 Total Derivative Liabilities (embedded) $ 164 $ 20,000 (1) ARS = Argentine peso, BRL = Brazilian Real, CHF = Swiss Franc, CNH = Chinese Yuan, EGP = Egyptian Pound, EUR = Euro, HKD = Hong Kong Dollar, GBP = British Pound, JPY = Japanese Yen, SAR = Saudi Arabian Riyal, SEK = Swedish Krona, USD = US Dollar. (2) The absolute notional exposure represents the Company’s derivative activity as of June 30, 2018 , which is representative of the volume of derivatives held during the period. (3) The fair value of embedded derivatives in reinsurance contracts is included in reinsurance balances payable in the condensed consolidated balance sheets. As of December 31, 2017 Listing currency (1) Fair Value Notional Amounts (2) Derivative Assets by Primary Underlying Risk Credit Credit Default Swaps - Protection Purchased USD $ 8,205 $ 50,593 Total Return Swaps - Long Contracts EGP 25,245 25,245 Equity Price Contracts for Differences - Long Contracts BRL / CHF / EUR / USD 17,298 163,868 Contracts for Differences - Short Contracts DKK / NOK / SEK / USD 4,384 31,992 Total Return Swaps - Long Contracts BRL / USD 15,936 96,388 Total Return Swaps - Short Contracts USD 1 — Interest Rates Interest Rate Swaptions JPY 539 64,950 Foreign Currency Exchange Rates Foreign Currency Forward Contracts HKD / JPY 1,764 511,937 Total Derivative Assets $ 73,372 $ 944,973 Listing currency (1) Fair Value Notional Amounts (2) Derivative Liabilities by Primary Underlying Risk Credit Credit Default Swaps - Protection Purchased USD $ 1,250 $ 19,418 Credit Default Swaps - Protection Sold USD 2,085 2,351 Equity Price Contracts for Differences - Long Contracts BRL / EUR / USD 2,200 93,200 Contracts for Differences - Short Contracts DKK / EUR / USD 776 8,483 Total Return Swaps - Long Contracts BRL / USD 73 50,858 Total Return Swaps - Short Contracts USD 1,885 52,657 Interest Rates Interest Rate Swaptions JPY 70 64,482 Foreign Currency Exchange Rates Foreign Currency Forward Contracts BRL / CHF / CNH / EUR / HKD / SAR 6,164 573,498 Total Derivative Liabilities (free standing) $ 14,503 $ 864,947 Embedded derivative liabilities in reinsurance contracts (3) USD $ 171 $ 20,000 Total Derivative Liabilities (embedded) $ 171 $ 20,000 (1) BRL = Brazilian Real, CHF = Swiss Franc, CNH = Chinese Yuan, DKK = Danish Krone, EGP = Egyptian Pound, EUR = Euro, HKD = Hong Kong Dollar, JPY = Japanese Yen, NOK = Norwegian Krone, SAR = Saudi Arabian Riyal, SEK = Swedish Krona, USD = US Dollar. (2) The absolute notional exposure represents the Company’s derivative activity as of December 31, 2017 , which is representative of the volume of derivatives held during the period. (3) The fair value of embedded derivatives in reinsurance contracts is included in reinsurance balances payable in the condensed 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 three and six months ended June 30, 2018 and 2017 . Realized and unrealized gains (losses) related to free standing derivatives are included in net investment income in the condensed consolidated statements of income (loss) . Realized and unrealized gains (losses) related to embedded derivatives are included in other expenses in the condensed consolidated statements of income (loss) . Three months ended June 30, 2018 June 30, 2017 Free standing Derivatives - Primary Underlying Risk Realized Gain (Loss) Unrealized Gain (Loss)* Realized Gain (Loss) Unrealized Gain (Loss)* Credit Credit Default Swaps - Protection Purchased $ 130 $ (2,581 ) $ (1,137 ) $ (1,590 ) Credit Default Swaps - Protection Sold (718 ) 1,053 18 (35 ) Total Return Swaps - Long Contracts 1,377 (1,981 ) (29 ) (37 ) Equity Price Contracts for Differences - Long Contracts 11,107 (606 ) 39,055 1,211 Contracts for Differences - Short Contracts 1,650 (1,994 ) (993 ) 1,821 Total Return Swaps - Long Contracts (1,632 ) (787 ) 61 3,545 Total Return Swaps - Short Contracts (9,517 ) 118 (1,014 ) 1,201 Interest Rates Interest Rate Swaps — — (4,550 ) (2,105 ) Interest Rate Swaptions — (180 ) (720 ) (573 ) Sovereign Future Options - Long Contracts 403 — — — Sovereign Future Options - Short Contracts 50 — — — Sovereign Futures - Long Contracts 639 — — — Sovereign Debt Futures - Short Contracts (560 ) (620 ) (6,874 ) (106 ) Total Return Swaps - Long Contracts — (3,277 ) — — Foreign Currency Exchange Rates Foreign Currency Forward Contracts 4,182 7,776 (4,161 ) (2,653 ) Foreign Currency Future Options - Purchased (108 ) — — — Foreign Currency Options - Purchased 4,571 1,045 (1,318 ) 661 Foreign Currency Options - Sold (485 ) (375 ) (1 ) — $ 11,089 $ (2,409 ) $ 18,337 $ 1,340 Embedded Derivatives Embedded derivatives in reinsurance contracts $ — $ (40 ) $ — $ (69 ) Total Derivative Liabilities (embedded) $ — $ (40 ) $ — $ (69 ) Six months ended June 30, 2018 June 30, 2017 Free standing Derivatives - Primary Underlying Risk Realized Gain (Loss) Unrealized Gain (Loss)* Realized Gain (Loss) Unrealized Gain (Loss)* Credit Credit Default Swaps - Protection Purchased $ (1,118 ) $ (2,022 ) $ (2,465 ) $ 30 Credit Default Swaps - Protection Sold 130 292 37 (59 ) Total Return Swaps - Long Contracts 1,819 (1,176 ) (29 ) (37 ) Equity Price Contracts for Differences - Long Contracts 25,307 (9,184 ) 46,925 6,687 Contracts for Differences - Short Contracts 5,710 (2,075 ) (4,205 ) 2,945 Total Return Swaps - Long Contracts 17,559 (15,864 ) 3,862 8,547 Total Return Swaps - Short Contracts (16,373 ) 1,883 (3,743 ) 788 Interest Rates Interest Rate Swaps — — (3,097 ) (1,740 ) Interest Rate Swaptions — (401 ) 522 (2,342 ) Sovereign Future Options - Long Contracts 403 — — — Sovereign Future Options - Short Contracts 50 — — — Sovereign Futures - Long Contracts 639 — — — Sovereign Debt Futures - Short Contracts (561 ) (644 ) (8,656 ) 658 Total Return Swaps - Long Contracts — (3,277 ) — — Foreign Currency Exchange Rates Foreign Currency Forward Contracts (9,634 ) 10,441 (10,035 ) (1,268 ) Foreign Currency Future Options - Purchased (108 ) — — — Foreign Currency Options - Purchased 4,571 469 (6,187 ) 1,163 Foreign Currency Options - Sold (485 ) (292 ) 2,184 (80 ) $ 27,909 $ (21,850 ) $ 15,113 $ 15,292 Embedded Derivatives Embedded derivatives in reinsurance contracts $ — $ 7 $ — $ (88 ) Total Derivative Liabilities (embedded) $ — $ 7 $ — $ (88 ) *Unrealized gain (loss) relates to derivatives still held at reporting date. The Company’s derivative contracts are generally subject to International Swaps and Derivatives Association (“ISDA”) Master Agreements or other similar agreements that contain provisions setting forth events of default and/or termination events (“credit-risk-related contingent features”), including but not limited to provisions setting forth maximum permissible declines in the Company’s net asset value. Upon the occurrence of a termination event with respect to an ISDA Agreement, the Company’s counterparty could elect to terminate the derivative contracts governed by such agreement, resulting in the realization of any net gains or losses with respect to such derivative contracts and the return of collateral held by such party. The Company obtains/provides collateral from/to various counterparties for OTC derivative and futures contracts in accordance with bilateral collateral agreements. During the period ended June 30, 2018 , no termination events were triggered under the ISDA Master Agreements. As of June 30, 2018 , the aggregate fair value of all derivative instruments with credit-risk-related contingent features that were in a net liability position was $3.1 million ( December 31, 2017 - $3.6 million ) for which the Company posted collateral in the form of cash of $59.1 million ( December 31, 2017 - $103.0 million ) in the normal course of business. Similarly, the Company held collateral (approximately $2.2 million ) in cash from certain counterparties as of June 30, 2018 . If the credit-risk-related contingent features underlying these instruments had been triggered as of June 30, 2018 and the Company had to settle these instruments immediately, no additional amounts would be required to be posted that would exceed the settlement amounts of open derivative contracts or in the case of cross margining relationships, the assets in the Company’s prime brokerage accounts are sufficient to offset the derivative liabilities. The Company’s derivatives do not qualify as hedges for financial reporting purposes and are recorded in the condensed consolidated financial statements on a gross basis and not offset against any collateral pledged or received. Pursuant to ISDA master agreements and other counterparty 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 or other derivatives agreements defaults, or a transaction is otherwise subject to termination, the non-defaulting party generally has the right to offset against payments owed to the defaulting party or collateral held by the non-defaulting party. The Company has pledged cash collateral to counterparties to support the current value of amounts due to the counterparties based on the value of the underlying security. As of June 30, 2018 and December 31, 2017 , the gross and net amounts of derivative instruments and repurchase and reverse repurchase agreements that are subject to enforceable master netting arrangements or similar agreements were as follows: Gross Amounts not Offset in the Condensed Consolidated Balance Sheet June 30, 2018 Gross Amount (1) Financial Instruments Cash Collateral Received Net Amount Financial assets, derivative assets and collateral received Counterparty 1 $ 190 $ 190 $ — $ — Counterparty 2 1,197 1,197 — — Counterparty 3 17,207 4,303 — 12,904 Counterparty 4 2,926 2,889 — 37 Counterparty 5 6,477 1,345 40 5,092 Counterparty 6 3,713 33 1,314 2,366 Counterparty 7 1,059 — 850 209 Counterparty 8 8,233 1,222 — 7,011 Counterparty 9 2,180 2,180 — — $ 43,182 $ 13,359 $ 2,204 $ 27,619 Gross Amounts not Offset in the Condensed Consolidated Balance Sheet June 30, 2018 Gross Amount (2) Financial Instruments Cash Collateral Pledged Net Amount Financial liabilities, derivative liabilities and collateral pledged Counterparty 1 $ 539 $ 190 $ 349 $ — Counterparty 2 1,482 1,197 285 — Counterparty 3 4,303 4,303 — — Counterparty 4 3,000 2,889 111 — Counterparty 5 1,345 1,345 — — Counterparty 6 33 33 — — Counterparty 8 1,222 1,222 — — Counterparty 9 4,520 2,180 2,340 — $ 16,444 $ 13,359 $ 3,085 $ — Securities lending transactions Counterparty 5 $ 7,341 $ 7,341 $ — $ — $ 7,341 $ 7,341 $ — $ — (1) The gross amounts of assets presented in the condensed consolidated balance sheets presented above includes the fair value of derivative contract assets as well as gross OTC option contract assets of $8.5 million included in other investments in the condensed consolidated balance sheets. (2) The gross amounts of liabilities presented in the condensed consolidated balance sheets presented above includes the fair value of derivative contract liabilities as well as gross OTC option contract liabilities of $4.1 million included in securities sold, not yet purchased in the condensed consolidated balance sheets. Gross Amounts not Offset in the Condensed Consolidated Balance Sheet December 31, 2017 Derivative Contracts Gross Amount (1) Financial Instruments Cash Collateral Received Net Amount Financial assets, derivative assets and collateral received Counterparty 1 $ 167 $ 167 $ — $ — Counterparty 2 1,343 706 — 637 Counterparty 3 37,313 2,705 — 34,608 Counterparty 4 2,683 2,683 — — Counterparty 5 14,798 6,647 — 8,151 Counterparty 6 5,338 9 2,122 3,207 Counterparty 7 1,377 — 1,100 277 Counterparty 8 12,628 2,963 — 9,665 Counterparty 9 703 703 — — $ 76,350 $ 16,583 $ 3,222 $ 56,545 Gross Amounts not Offset in the Condensed Consolidated Balance Sheet December 31, 2017 Derivative Contracts Gross Amount (2) Financial Instruments Cash Collateral Pledged Net Amount Financial liabilities, derivative liabilities and collateral pledged Counterparty 1 $ 1,340 $ 167 $ 1,173 $ — Counterparty 2 706 706 — — Counterparty 3 2,705 2,705 — — Counterparty 4 3,812 2,683 1,129 — Counterparty 5 6,647 6,647 — — Counterparty 6 9 9 — — Counterparty 8 2,963 2,963 — — Counterparty 9 1,181 703 478 — Counterparty 15 836 — 732 104 $ 20,199 $ 16,583 $ 3,512 $ 104 Securities sold under an agreement to repurchase Counterparty 4 $ 29,618 $ 29,618 $ — $ — $ 29,618 $ 29,618 $ — $ — (1) The gross amounts of assets presented in the condensed consolidated balance sheets presented above includes the fair value of derivative contract assets as well as gross OTC option contract assets of $3.0 million included in other investments in the condensed consolidated balance sheets. (2) The gross amounts of liabilities presented in the condensed consolidated balance sheets presented above includes the fair value of derivative contract liabilities as well as gross OTC option contract liabilities of $5.7 million included in securities sold, not yet purchased in the condensed consolidated balance sheets.

Loss and loss adjustment expens

Loss and loss adjustment expense reserves	6 Months Ended
	Jun. 30, 2018
Insurance Loss Reserves [Abstract]
Loss and loss adjustment expense reserves	As of June 30, 2018 and December 31, 2017 , loss and loss adjustment expense reserves in the condensed consolidated balance sheets was comprised of the following: June 30, December 31, Case loss and loss adjustment expense reserves $ 116,957 $ 115,622 Incurred but not reported loss and loss adjustment expense reserves 673,840 604,260 Deferred gains on retroactive reinsurance contracts 516 688 $ 791,313 $ 720,570 The following table represents the activity in the loss and loss adjustment expense reserves for the six months ended June 30, 2018 and 2017 : June 30, June 30, Gross reserves for loss and loss adjustment expenses, beginning of period $ 720,570 $ 605,129 Less: loss and loss adjustment expenses recoverable, beginning of period (1,113 ) (1 ) Net reserves for loss and loss adjustment expenses, beginning of period 719,457 605,128 Increase (decrease) in net loss and loss adjustment expenses incurred in respect of losses occurring in: Current year 167,419 218,559 Prior years (1) 9,201 (25,285 ) Total incurred loss and loss adjustment expenses 176,620 193,274 Net loss and loss adjustment expenses paid in respect of losses occurring in: Current year (35,471 ) (19,737 ) Prior years (70,781 ) (111,480 ) Total net paid losses (106,252 ) (131,217 ) Foreign currency translation (3,912 ) 9,561 Net reserves for loss and loss adjustment expenses, end of period 785,913 676,746 Plus: loss and loss adjustment expenses recoverable, end of period 1,414 1,713 Plus: deferred charges on retroactive reinsurance contracts 3,986 — Gross reserves for loss and loss adjustment expenses, end of period $ 791,313 $ 678,459 (1) In the period ended June 30, 2018, the Company started including the amortization of deferred gains on retroactive reinsurance contracts in prior year loss development. This line item was previously presented separately in the loss reserves roll forward presented above. The prior year presentation has been adjusted to conform with the current year presentation. 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 $9.2 million net increase in prior years’ reserves for the six months ended June 30, 2018 includes a $17.7 million increase in loss reserves resulting from increase s in premium earnings estimates on certain contracts, partially offset by $8.5 million of net favorable reserve development related to decrease s in loss reserve estimates. 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 $17.7 million net increase in loss and loss adjustment expenses incurred resulting from increase s in premium earnings estimates was accompanied by a $5.2 million increase in acquisition costs, for a total of $22.9 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 $23.2 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 $0.3 million improvement in the net underwriting results for the six months ended June 30, 2018 . • The $8.5 million of net favorable prior years’ reserve development for the six months ended June 30, 2018 was accompanied by net increase s of $5.7 million in acquisition costs, resulting in a $2.8 million improvement in the net underwriting results , primarily due to: • $5.4 million of net favorable underwriting loss development relating to several workers’ compensation contracts written from 2012 to 2017, driven by better than expected loss experience; • $2.9 million of net favorable underwriting loss development primarily relating to one multi-line contract written from 2014 to 2017, driven by better than expected loss experience; • $1.9 million of net favorable underwriting loss development from several other contracts as a result of better than expected loss experience; partially offset by • $7.4 million of net adverse underwriting loss development primarily relating to our Florida homeowners’ quota share reinsurance contracts. This development is a result of higher than anticipated water damage claims and an increase in the practice of assignment of benefits whereby homeowners assign their rights for filing and settling claims to attorneys and public adjusters. This practice has led to increases in the frequency of claims reported as well as the severity of losses and loss adjustment expenses. • 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 $3.1 million improvement in the net underwriting results for the six months ended June 30, 2018 . In the six months ended June 30, 2018 , the Company recorded a deferred charge of $4.0 million relating to retroactive reinsurance contracts written in the period. Deferred charge on retroactive contracts are recorded in other assets on the Company’s balance sheet. The $25.3 million net decrease in prior years’ reserves, which includes $1.4 million for the amortization of deferred gains, for the six months ended June 30, 2017 includes $32.5 million of net favorable reserve development related to decreases in loss reserve estimates, partially offset by $7.2 million of additional loss reserves resulting from increases 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 $32.5 million of net favorable prior years’ reserve development for the six months ended June 30, 2017 was primarily a result of having favorable loss development on certain retroactive reinsurance contracts. These retroactive reinsurance contracts had profit commission terms such that the favorable reserve development associated with these contracts was offset by similar increases in acquisition costs. The total net increases in acquisition costs associated with the prior year loss development for the six months ended June 30, 2017 was $32.5 million , resulting in minimal impact in the net underwriting loss. • The $7.2 million increase in loss and loss adjustment expenses incurred related to the increase in premium earnings estimates on certain contracts was accompanied by a $0.4 million increase in acquisition costs, for a total of $7.6 million increase in loss and loss adjustment expenses incurred and acquisition costs. The related increase in earned premium related to the increase in premium earnings estimates was $7.6 million , resulting in minimal impact in net underwriting loss for the six months ended June 30, 2017 . • In total, there was minimal change in net underwriting loss for prior periods due to loss reserve development and adjustments to premium earnings estimates for the six months ended June 30, 2017 .

Management, performance and fou

Management, performance and founders fees	6 Months Ended
	Jun. 30, 2018
Management, Performance and Founders Fees [Abstract]
Management, performance and founders fees	Third Point Re, Third Point Re BDA, TPRUSA and Third Point Re USA are parties to Joint Venture and Investment Management Agreements (the “Investment Agreements”) with Third Point LLC and Third Point Advisors LLC (“TP GP”) under which Third Point LLC manages certain jointly held assets. Pursuant to the Investment Agreements, TP GP receives a performance fee allocation equal to 20% of the net investment income of the applicable company’s share of the investment assets managed by Third Point LLC. The performance fee accrued on net investment income is included in liabilities as a performance fee payable to related party during the period, unless funds are redeemed from the Joint Venture accounts, in which case, the proportionate share of performance fee, as described in Note 17 , associated with the redemption is earned and allocated to noncontrolling interests in related party. At the end of each year, the remaining portion of the performance fee payable that has not been included in noncontrolling interests in related party through redemptions is earned and then allocated to TP GP’s capital account in accordance with the Investment Agreements. 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 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 under the Investment Agreements. Additionally, Third Point LLC is entitled to receive management fees, which are paid monthly. Pursuant to the Investment Agreements, a total management fee of 1.5% of net investments managed by Third Point LLC was paid to Third Point LLC. For the three and six months ended June 30, 2018 and 2017 , management and performance fees to related parties are as follows: Three months ended Six months ended June 30, June 30, June 30, June 30, Management fees - Third Point LLC $ 9,635 $ 8,777 $ 19,410 $ 17,244 Performance fees - Third Point Advisors LLC 4,858 24,529 5,130 55,387 $ 14,493 $ 33,306 $ 24,540 $ 72,631 As of June 30, 2018 , $4.6 million related to performance fees due under the Investment Agreements were included in performance fee payable to related party in the condensed consolidated balance sheets. As of June 30, 2018 , $0.5 million ( December 31, 2017 , $94.0 million ) related to performance fees earned by TP GP were included in noncontrolling interests in related party. See Note 17 for additional information.

Deposit contracts

Deposit contracts	6 Months Ended
	Jun. 30, 2018
Deposit Contracts, Liabilities [Abstract]
Deposit contracts	The following table represents activity for the deposit contracts for the six months ended June 30, 2018 and year ended December 31, 2017 : June 30, December 31, Balance, beginning of period $ 129,133 $ 104,905 Consideration received 1,114 22,658 Consideration receivable — 2,080 Net investment expense allocation 2,449 2,800 Payments (2,893 ) (3,545 ) Foreign currency translation (103 ) 235 Balance, end of period $ 129,700 $ 129,133

Senior notes payable and letter

Senior notes payable and letter of credit facilities	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Senior notes payable and letter of credit facilities	Senior Notes payable As of June 30, 2018 , 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 June 30, 2018 , the Company had capitalized $1.2 million of costs associated with the Notes, which are presented as a direct deduction from the principal amount of the Notes on the condensed consolidated balance sheets. As of June 30, 2018 , the Notes had an estimated fair value of $114.5 million ( December 31, 2017 - $116.7 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 June 30, 2018 and December 31, 2017 . Letters of credit As of June 30, 2018 , the Company had entered into the following letter of credit facilities: Facility Utilized Collateral Citibank $ 300,000 $ 158,312 $ 158,312 Lloyds Bank 125,000 82,233 82,233 $ 425,000 $ 240,545 $ 240,545 The Company’s letter of credit facilities are bilateral agreements that generally renew on an annual basis. The letters of credit issued under the letter of credit facilities are fully collateralized. See Note 3 for additional information.

Net investment income

Net investment income	6 Months Ended
	Jun. 30, 2018
Net Investment Income [Abstract]
Net investment income (loss)	Net investment income for the three and six months ended June 30, 2018 and 2017 consisted of the following: Three months ended Six months ended June 30, June 30, June 30, June 30, Net investment income by type Net realized gains on investments and investment derivatives $ 64,731 $ 96,869 $ 130,500 $ 157,945 Net change in unrealized gains (losses) on investments and investment derivatives (32,532 ) 29,140 (95,520 ) 124,814 Net losses on foreign currencies (1,830 ) (1,601 ) (2,617 ) (2,153 ) Dividend and interest income 24,493 22,440 37,717 39,707 Dividends paid on securities sold, not yet purchased (2,329 ) (1,143 ) (4,221 ) (1,668 ) Other expenses (6,865 ) (5,074 ) (12,352 ) (10,179 ) Net investment income before management and performance fees to related parties 45,668 140,631 53,507 308,466 Management and performance fees to related parties (14,493 ) (33,306 ) (24,540 ) (72,631 ) Net investment income $ 31,175 $ 107,325 $ 28,967 $ 235,835 The following table provides an additional breakdown of our net investment income by asset and liability type for the three and six months ended June 30, 2018 and 2017 : Three months ended Six months ended June 30, 2018 June 30, 2017 June 30, 2018 June 30, 2017 Net investment income (loss) by asset type Equity securities $ 58,881 $ 111,622 $ 40,556 $ 261,891 Private common equity securities (11 ) 3 (453 ) (24 ) Private preferred equity securities 166 1,362 (1,874 ) 1,624 Total equities 59,036 112,987 38,229 263,491 Asset-backed securities 7,033 2,300 19,482 5,133 Bank debt 800 2,072 3,321 6,214 Corporate bonds (737 ) 2,335 (3,413 ) 11,250 Municipal bonds 2,470 — 6,248 — U.S. Treasury securities 478 1,205 (159 ) 2,365 Sovereign debt (8,533 ) 5,396 (4,402 ) 11,848 Other debt securities 31 — 469 — Total debt securities 1,542 13,308 21,546 36,810 Options (5,562 ) (10,383 ) (6,619 ) (17,848 ) Rights and warrants 63 (6 ) 47 38 Real estate 414 — 501 — Trade claims (284 ) 56 (287 ) 219 Total other investments (5,369 ) (10,333 ) (6,358 ) (17,591 ) Net investment income (loss) in funds valued at NAV 282 3,394 (625 ) 7,017 Total net investment income from invested assets 55,491 119,356 52,792 289,727 Net investment income (loss) by liability type Equity securities (23,844 ) (1,469 ) (10,926 ) (7,467 ) Sovereign debt — 2 — 2 Corporate bonds (1,934 ) (1,221 ) (1,969 ) (2,914 ) Options 9,174 6,056 12,907 4,363 Total net investment income (loss) from securities sold, not yet purchased (16,604 ) 3,368 12 (6,016 ) Other investment income (losses) and other expenses not presented above Other investment expenses (673 ) (2,098 ) (1,026 ) (4,012 ) Net investment income on derivative contracts 8,680 19,677 6,059 30,405 Net investment loss on cash, including foreign exchange loss (5,485 ) (3,057 ) (9,345 ) (5,993 ) Net investment losses on securities purchased under an agreement to sell and securities sold under an agreement to repurchase (32 ) (19 ) (241 ) (39 ) Withholding taxes reclassified to income tax expense 4,291 3,404 5,256 4,394 Total other investment income and other expenses 6,781 17,907 703 24,755 Net investment income before management and performance fees to related parties 45,668 140,631 53,507 308,466 Management and performance fees to related parties (14,493 ) (33,306 ) (24,540 ) (72,631 ) Net investment income $ 31,175 $ 107,325 $ 28,967 $ 235,835

Other expenses

Other expenses	6 Months Ended
	Jun. 30, 2018
Other Income and Expenses [Abstract]
Other expenses	Other expenses for the three and six months ended June 30, 2018 and 2017 consisted of the following: Three months ended Six months ended June 30, June 30, June 30, June 30, Investment expense (income) on deposit liabilities $ 1,188 $ (97 ) $ 2,449 $ 312 Investment expense and change in fair value of embedded derivatives in reinsurance contracts 2,795 2,202 5,529 4,694 $ 3,983 $ 2,105 $ 7,978 $ 5,006

Income taxes

Income taxes	6 Months Ended
	Jun. 30, 2018
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 condensed 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. On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as the Tax Cuts and Jobs Act (the “Tax Act”). The Tax Act makes broad and complex changes to the U.S. tax code, including, but not limited to, (1) reducing the U.S. federal corporate tax rate from 35% to 21%; (2) eliminating the corporate alternative minimum tax (AMT) and changing how existing AMT credits can be realized; (3) creating the base erosion anti-abuse tax (BEAT), a new minimum tax; and (4) creating a new limitation on deductible interest expense. Although the Company believes that it has accounted for the most significant tax effects of the Tax Act, there may be further changes that could impact the Company’s calculations of certain deferred tax amounts. The Company also has subsidiaries in the United Kingdom, TPRUK and Third Point Re UK, which are subject to applicable taxes in that jurisdiction. The Company is 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. The Company has recorded uncertain tax positions related to investment transactions in certain foreign jurisdictions. As of June 30, 2018 , the Company has accrued $1.9 million (December 31, 2017 - $1.9 million ) for uncertain tax positions. For the three and six months ended June 30, 2018 and 2017 , the Company recorded income tax expense, as follows: Three months ended Six months ended June 30, June 30, June 30, June 30, Income tax expense (benefit) related to U.S. and U.K. subsidiaries $ 61 $ 1,844 $ (788 ) $ 6,027 Change in uncertain tax positions 38 59 50 184 Withholding taxes on certain investment transactions 4,291 3,404 5,256 4,394 $ 4,390 $ 5,307 $ 4,518 $ 10,605

Share capital

Share capital	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
Share capital	The following tables present a summary of the common shares issued and outstanding and shares repurchased held as treasury shares as of and for the six months ended June 30, 2018 and 2017 : Common shares 2018 2017 Common shares issued, beginning of period 107,227,347 106,501,299 Options exercised — 100,000 Restricted shares granted, net of forfeitures 50,644 36,418 Performance restricted shares granted, net of forfeitures and shares withheld 257,045 694,886 Retirement of treasury shares and shares repurchased (1) (8,269,193 ) — Warrants exercised, net (2) 361,556 — Common shares issued, end of period 99,627,399 107,332,603 Treasury shares, end of period — (3,944,920 ) Common shares outstanding, end of period 99,627,399 103,387,683 (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 future shares repurchased will be retired. (2) During the six months ended June 30, 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 February 28, 2018, the Company’s Board of Directors authorized the repurchase of an additional $148.3 million 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 three months ended June 30, 2018 , the Company repurchased 2,685,965 of its common shares in the open market for $36.6 million at a weighted average cost, including commissions, of $13.62 per share. Common shares repurchased by the Company during the period were retired. During the six months ended June 30, 2018 , the Company repurchased 4,324,273 of its common shares in the open market for $60.4 million at a weighted average cost, including commissions, of $ 13.97 per share. Common shares repurchased by the Company during the period were retired. In the three months ended March 31, 2018, the Company also retired all shares previously held in treasury. As of June 30, 2018 , the Company was authorized to repurchase up to an aggregate of $139.6 million of additional common shares under its share repurchase program.

Share-based compensation

Share-based compensation	6 Months Ended
	Jun. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Share-based compensation	The following table provides the total share-based compensation expense included in general and administrative expenses during the three and six months ended June 30, 2018 and 2017 : Three months ended Six months ended June 30, June 30, June 30, June 30, Management and director options $ 60 $ 111 $ 155 $ 459 Restricted shares with service condition 139 154 279 278 Restricted shares with service and performance condition 1,114 1,279 2,124 2,637 $ 1,313 $ 1,544 $ 2,558 $ 3,374 As of June 30, 2018 , the Company had $9.2 million ( December 31, 2017 - $5.8 million ) of unamortized share compensation expense, which is expected to be amortized over a weighted average period of 1.6 years ( December 31, 2017 - 1.5 years ). Management and director options The management and director options activity for the six months ended June 30, 2018 and year ended December 31, 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 June 30, 2018 8,888,053 $ 13.43 As of June 30, 2018 , the weighted average remaining contractual term for options outstanding and exercisable was 3.7 years and 3.7 years , respectively ( December 31, 2017 - 4.2 years and 4.1 years , respectively). The following table summarizes information about the Company’s management and director share options outstanding as of June 30, 2018 : 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 5,123,532 $ 10.04 3.6 years 5,123,531 $ 10.04 $15.05 - $16.89 1,917,145 15.93 3.8 years 1,875,285 15.95 $20.00 - $25.05 1,847,376 20.26 3.7 years 1,819,471 20.22 8,888,053 $ 13.43 3.7 years 8,818,287 $ 13.40 Restricted shares with service condition Restricted share award activity for the six months ended June 30, 2018 and year ended December 31, 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 (20,724 ) 12.53 Balance as of June 30, 2018 48,129 $ 13.35 Restricted shares with service condition 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 shares with service and performance condition Restricted share award activity for the restricted shares with a service and performance condition for the six months ended June 30, 2018 and year ended December 31, 2017 were as follows: Number of non- vested restricted shares Number of non- vested restricted shares probable of vesting Weighted average grant date fair value of shares probable of vesting 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 551,065 353,380 14.03 Forfeited (288,700 ) — 14.00 Vested (115,757 ) (115,757 ) 14.00 Change in estimated restricted shares considered probable of vesting n/a 29,509 12.39 Balance as of June 30, 2018 2,001,987 1,154,335 $ 12.65

Non-controlling interests

Non-controlling interests	6 Months Ended
	Jun. 30, 2018
Noncontrolling Interest [Abstract]
Non-controlling interests	Noncontrolling interests in related party represents the portion of equity in consolidated subsidiaries not attributable, directly or indirectly, to the Company. The joint ventures created through the Investment Agreements ( Note 9 ) have been considered variable interest entities and have been consolidated in accordance with ASC 810, Consolidation (ASC 810). Since the Company was deemed to be the primary beneficiary, the Company has consolidated the joint ventures and has recorded TP GP’s minority interests as redeemable noncontrolling interests in related party and noncontrolling interests in related party in the condensed consolidated balance sheets. A portion of the noncontrolling interest in investment affiliates is subject to contractual withdrawal rights of TP GP, whereas TP GP, at its sole discretion, can withdraw the capital over the minimum capital required to be maintained in its capital accounts. This excess capital is therefore recorded on the Company’s condensed consolidated balance sheets as redeemable noncontrolling interest in related party whereas the required minimum capital is recorded as noncontrolling interests in related party within shareholders’ equity on the Company’s condensed consolidated balance sheets since it does not have withdrawal rights. Changes in the presentation of noncontrolling interests During the quarter ended September 30, 2017, the Company identified that a portion of its noncontrolling interests were redeemable. This portion of the noncontrolling interests had previously been presented in noncontrolling interests to related party within shareholders’ equity when it should have been presented in the mezzanine section of the condensed consolidated balance sheets as redeemable noncontrolling interests in related party. As of June 30, 2017, $14.9 million of the noncontrolling interests in related party should have been presented in the mezzanine section of the condensed consolidated balance sheets as redeemable noncontrolling interests in related party and should have been excluded from noncontrolling interests in related party in shareholders’ equity. Although this impacted total shareholders’ equity, it did not impact shareholders’ equity attributable to Third Point Re common shareholders or retained earnings. In addition, this change did not impact the consolidated statements of income, earnings per share or consolidated statement of cash flows. The Company has evaluated the effect of the incorrect presentation, both qualitatively and quantitatively, and concluded that it did not have a material impact on, nor require amendment of, any previously filed annual or quarterly consolidated financial statements. 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 six months ended June 30, 2018 and 2017 : Redeemable noncontrolling interests in related party Noncontrolling interests in related party Total noncontrolling interests in related party June 30, June 30, June 30, June 30, June 30, June 30, Balance, beginning of period $ 108,219 $ — $ 5,407 $ 35,674 $ 113,626 $ 35,674 Changes in capital account allocation (101,040 ) — (251 ) (15,865 ) (101,291 ) (15,865 ) Balance, end of period $ 7,179 $ — $ 5,156 $ 19,809 $ 12,335 $ 19,809 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 June 30, June 30, June 30, June 30, June 30, June 30, Balance, beginning of period $ 97,619 $ 30,358 $ 16,007 $ 5,316 $ 113,626 $ 35,674 Net income attributable to total noncontrolling interests in related party 137 1,764 82 437 219 2,201 Contributions (1) 476 1,818 14 115 490 1,933 Redemptions (89,000 ) (17,999 ) (13,000 ) (2,000 ) (102,000 ) (19,999 ) Balance, end of period $ 9,232 $ 15,941 $ 3,103 $ 3,868 $ 12,335 $ 19,809 (1) Contributions include performance fees earned during the period. See Note 9 for additional information. Non-consolidated variable interest entities The Company invests in limited partnerships and other investment vehicles as part of its overall investment strategy. Some of these entities are affiliated with our investment manager, Third Point LLC. The activities of these variable interest entities are generally limited to holding investments and the Company’s involvement in these entities is passive in nature. The Company does not have the power to direct the activities which most significantly impact the variable interest entities economic performance and therefore, the Company is not the primary beneficiary of these variable interest entities. The following variable interest entities were not consolidated as per ASC 810: TP Lux Holdco LP The Company is a limited partner in TP Lux Holdco LP (the “Cayman HoldCo”), which is an affiliate of the Investment Manager. The Cayman HoldCo was formed as a limited partnership under the laws of the Cayman Islands and invests and holds debt and equity interests in TP Lux HoldCo S.a.r.l, a Luxembourg private limited liability company (the “LuxCo”) established under the laws of the Grand-Duchy of Luxembourg, which is also an affiliate of the Investment Manager. LuxCo’s principal objective is to act as a collective investment vehicle to purchase Euro debt and equity investments. The Company invests in the Cayman HoldCo alongside other investment funds managed by the Investment Manager. As of June 30, 2018 , the Company held a 14.6% ( December 31, 2017 - 15.6% ) interest in the Cayman Holdco. The Company accounts for its investment in the limited partnership under the variable interest model, in which the Company is not the primary beneficiary, at NAV, as a practical expedient for fair value, in the condensed consolidated balance sheets. The Company records changes in the fair value of this investment in the condensed consolidated statements of income (loss) . As of June 30, 2018 , the estimated fair value of the investment in the limited partnership was $1.2 million ( December 31, 2017 - $ 0.6 million). The Company contributed $0.3 million to the Cayman HoldCo during the six months ended June 30, 2018 due to the purchase of underlying investments ( 2017 - $39.6 million net distributions). The valuation policy with respect to this investment in a limited partnership is further described in Note 4 . The Company’s maximum exposure to loss as a result of its involvement with this investment is limited to the carrying value of the investment. Third Point Hellenic Recovery US Feeder Fund, L.P. The Company is a limited partner in Third Point Hellenic Recovery US Feeder Fund, L.P. (the “Hellenic Fund”), which is an affiliate of the Investment Manager. The Hellenic Fund was formed as a limited partnership under the laws of the Cayman Islands on April 12, 2013 and invests and holds debt and equity interests. The Company has committed to invest $10.7 million ( December 31, 2017 - $10.9 million ) in the Hellenic Fund and as of June 30, 2018 , had an unfunded capital commitment of $3.2 million . No capital distributions or calls were made during the six months ended June 30, 2018 ( 2017 - $1.3 million net distributions). As of June 30, 2018 , the estimated fair value of the Company’s investment in the Hellenic Fund was $4.9 million ( December 31, 2017 - $4.9 million), representing a 2.9% interest ( December 31, 2017 - 2.9% ). The Company accounts for its investment in the limited partnership under the variable interest model, in which the Company is not the primary beneficiary, at NAV, as a practical expedient for fair value, in the condensed consolidated balance sheets. The Company records changes in the fair value of this investment in the condensed consolidated statements of income (loss) . The valuation policy with respect to this investment in a limited partnership is further described in Note 4 . The Company’s maximum exposure to loss as a result of its involvement with this investment is limited to the carrying value of the investment. TP DR Holdings LLC The Company holds an equity and debt investment in TP DR Holdings LLC (“TP DR”), which is an affiliate of the Investment Manager. In December 2016, TP DR was formed as a limited liability company under the laws of the Cayman Islands to invest and own 100% equity interest in DCA Holdings Six Ltd. and its wholly owned subsidiary group. TP DR’s principal objective is to own, develop and manage properties in the Dominican Republic. The Company invests in TP DR alongside other investment funds managed by the Investment Manager and third-party investors. As of June 30, 2018 , the Company held a 7.0% equity ( December 31, 2017 - 7.0% ) and 14.0% debt interest ( December 31, 2017 - 13.1% ) in TP DR. The Company accounts for its equity investment in TP DR under the variable interest model, in which the Company is not the primary beneficiary, at NAV, as a practical expedient for fair value, in the condensed consolidated balance sheets. The Company records changes in the fair value of this investment in the condensed consolidated statements of income (loss) . As of June 30, 2018 , the estimated fair value of the investment was $13.8 million ( December 31, 2017 - $12.7 million ), corresponding to $3.9 million of equity ( December 31, 2017 - $3.7 million ) and $9.9 million of debt interest ( December 31, 2017 - $9.0 million ). During the six months ended June 30, 2018 , the Company contributed cash of $1.9 million ( 2017 - $ 0.4 million ) to TP DR. The Company has no further commitments or guarantees with respect to TP DR. The valuation policy with respect to this investment in investment funds is further described in Note 4. The Company’s maximum exposure to loss as a result of its involvement with this investment is limited to the carrying value of the investment. Cloudbreak II Cayman Ltd and TP Trading II LLC The Company holds an equity interest in Cloudbreak II Cayman Ltd, Cloudbreak II US LLC (collectively, the “Cloudbreak entities”) and TP Trading II LLC which are affiliates of the Investment Manager. The Company invests in the Cloudbreak entities and TP Trading II LLC alongside other investment funds managed by the Investment Manager. These entities’ are invested in a structure whose primary purpose is to purchase consumer loans for securitization and warrants from a marketplace lending platform. As of June 30, 2018 , the Cloudbreak entities held $5.1 million ( December 31, 2017 - $4.6 million ) of the Company’s asset-backed security investments, which are included in investments in securities in the condensed consolidated balance sheet. The Company’s pro rata interest in the underlying investments is registered in the name of Cloudbreak II US LLC and the related income and expense are reflected in the condensed consolidated balance sheets and the condensed consolidated statements of income (loss) . As of June 30, 2018 , the Company held a 9.4% ( December 31, 2017 - 9.3% ) interest in TP Trading II LLC. The Company accounts for its equity investment in TP Trading II LLC under the variable interest model, in which the Company is not the primary beneficiary, at NAV, as a practical expedient for fair value, in the condensed consolidated balance sheets. The Company records changes in the fair value of this investment in the condensed consolidated statements of income (loss) . As of June 30, 2018 , the estimated fair value of the investment was $5.9 million ( December 31, 2017 - $6.0 million ). The valuation policy with respect to this investment is further described in Note 4. The Company’s maximum exposure to loss as a result of its involvement with these investments are limited to the carrying value of the investments. Ventures Entities The Company holds equity interests in Venture Three Holdings LLC, Venture Four Holdings LLC, Venture Five Holdings LLC and Venture Six Holdings LLC (collectively, the “Ventures entities”), which are affiliates of the Investment Manager. The Company invests in the Ventures entities alongside other investment funds managed by the Investment Manager. The primary purpose of these entities is to make investments in direct commercial real estate, real estate debt and a publicly traded telecommunications company. The Company accounts for its equity interests in the Ventures entities under the variable interest model, in which the Company is not the primary beneficiary. As of June 30, 2018 , the Ventures entities held $17.8 million ( December 31, 2017 - $7.5 million ) of the Company’s investments, which are included in investments in securities in the condensed consolidated balance sheets. The Company records changes in the fair value of this investment in the condensed consolidated statements of income (loss) . The valuation policy with respect to this investment is further described in Note 4. The Company’s maximum exposure to loss as a result of its involvement with this investment is limited to the carrying value of the investment. Cloudbreak Aggregator LP The Company holds equity interests in Cloudbreak Aggregator LP, which is an affiliate of the Investment Manager. The Company invests in the Cloudbreak Aggregator LP alongside other investment funds managed by the Investment Manager. The primary purpose of this entity is to invest in Far Point LLC, the sponsor of Far Point Acquisition Corporation “FPAC”. FPAC is a NYSE listed special acquisition corporation. The Company accounts for its equity interests in the Cloudbreak Aggregator LP under the variable interest model, in which the Company is not the primary beneficiary. As of June 30, 2018 , the Cloudbreak Aggregator LP held $3.2 million ( December 31, 2017 - $ nil ) of the Company’s investments in limited partnerships which are included in investments in securities in the condensed consolidated balance sheets. The Company records changes in the fair value of this investment in the condensed consolidated statements of income (loss) . The valuation policy with respect to this investment is further described in Note 4. The Company’s maximum commitment amount is $58.5 million . The Company’s maximum exposure to loss as a result of its involvement with this investment is limited to the carrying value of the investment and the commitment.

Earnings (loss) per share avail

Earnings (loss) per share available to Third Point Re common shareholders	6 Months Ended
	Jun. 30, 2018
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 three and six months ended June 30, 2018 and 2017 : Three months ended Six months ended June 30, June 30, June 30, June 30, Weighted-average number of common shares outstanding: ($ in thousands, except share and per share amounts) Basic number of common shares outstanding 99,498,901 102,283,844 100,342,636 103,144,078 Dilutive effect of options 1,274,609 1,084,217 — 937,864 Dilutive effect of warrants 878,977 988,830 — 860,484 Dilutive effect of restricted shares with service and performance condition 379,998 212,335 — 207,284 Diluted number of common shares outstanding 102,032,485 104,569,226 100,342,636 105,149,710 Basic earnings (loss) per common share: Net income (loss) available to Third Point Re common shareholders $ 19,602 $ 74,578 $ (6,399 ) $ 178,764 Net income allocated to Third Point Re participating common shareholders (6 ) (71 ) — (204 ) Net income (loss) allocated to Third Point Re common shareholders $ 19,596 $ 74,507 $ (6,399 ) $ 178,560 Basic earnings (loss) per common share $ 0.20 $ 0.73 $ (0.06 ) $ 1.73 Diluted earnings (loss) per common share: Net income (loss) available to Third Point Re common shareholders $ 19,602 $ 74,578 $ (6,399 ) $ 178,764 Net income allocated to Third Point Re participating common shareholders (6 ) (69 ) — (200 ) Net income (loss) allocated to Third Point Re common shareholders $ 19,596 $ 74,509 $ (6,399 ) $ 178,564 Diluted earnings (loss) per common share $ 0.19 $ 0.71 $ (0.06 ) $ 1.70 For the three months ended June 30, 2018 and 2017 , anti-dilutive options of 3,764,521 and 4,322,659 , respectively, were excluded from the computation of diluted earnings per share. For the six months ended June 30, 2018 and 2017 , anti-dilutive options of 3,764,521 and 4,322,659 , respectively, were excluded from the computation of diluted earnings per share. Additionally, as a result of the net loss for the six months ended June 30, 2018 , dilutive options, warrants and restricted shares with service and performance conditions totaling 10,003,738 were considered anti-dilutive and were excluded from the computation of diluted loss per common share. No allocation of the net loss has been made to participating shares in the calculation of diluted net loss per common share.

Related party transactions

Related party transactions	6 Months Ended
	Jun. 30, 2018
Related Party Transactions [Abstract]
Related party transactions	In addition to the transactions disclosed in Notes 4 , 9 and 17 to these condensed consolidated financial statements, the following transactions are classified as related party transactions, as the counterparties have either a direct or indirect shareholding in the Company or the Company has an investment in such counterparty. Third Point Loan L.L.C. (“Loan LLC”) and Third Point Ventures LLC (“Ventures LLC” and, together with Loan LLC, “Nominees”) serve as nominees of the Company and other affiliated investment management clients of the Investment Manager for certain investments. The Nominees have appointed the Investment Manager as its true and lawful agent and attorney. As of June 30, 2018 , Loan LLC held $126.0 million ( December 31, 2017 - $ 99.6 million ) and Ventures LLC held $38.9 million ( December 31, 2017 - $ 6.3 million ) of the Company’s investments, which are included in investments in securities and derivative contracts in the condensed consolidated balance sheets. The Company’s pro rata interest in the underlying investments registered in the name of the Nominees and the related income and expense are reflected in the condensed consolidated balance sheets and the condensed consolidated statements of income (loss) . The valuation policy, with respect to investments held by the nominees, is further discussed in Note 4. BlackRock, Inc. (“BlackRock”) reported a beneficial ownership interest of more than 10% of the Company’s common shares as of December 31, 2017. As a result, BlackRock is considered a related party as defined by U.S. GAAP. As of June 30, 2018 , $46.9 million ( December 31, 2017 - $106.5 million ) of equity securities in BlackRock were included in the Company’s condensed consolidated balance sheets. Included in the Company’s net investment income in its condensed consolidated statements of income (loss) for the three and six months ended June 30, 2018 was $(5.1) million and $1.4 million , respectively ( 2017 - $3.6 million and $3.6 million , respectively) of investment income associated with the Company’s investment in BlackRock.

Financial instruments with off-

Financial instruments with off-balance sheet risk or concentrations of credit risk	6 Months Ended
	Jun. 30, 2018
Guarantees [Abstract]
Financial instruments with off-balance sheet risk or concentrations of credit risk	Off-balance sheet risk In the normal course of business, the Company trades various financial instruments and engages in various investment activities with off-balance sheet risk. These financial instruments include securities sold, not yet purchased, forwards, futures, options, swaptions, swaps and contracts for differences. Generally, these financial instruments represent future commitments to purchase or sell other financial instruments at specific terms at specified future dates. Each of these financial instruments contains varying degrees of off-balance sheet risk whereby changes in the fair values of the securities underlying the financial instruments or fluctuations in interest rates and index values may exceed the amounts recognized in the condensed consolidated balance sheets. Securities sold, not yet purchased are recorded as liabilities in the condensed consolidated balance sheets and have market risk to the extent that the Company, in satisfying its obligations, may be required to purchase securities at a higher value than that recorded in the condensed consolidated balance sheets. The Company’s investments in securities and commodities and amounts due from brokers are partially restricted until the Company satisfies the obligation to deliver securities sold, not yet purchased. Forward and futures contracts are a commitment to purchase or sell financial instruments, currencies or commodities at a future date at a negotiated rate. Forward and futures contracts expose the Company to market risks to the extent that adverse changes occur to the underlying financial instruments such as currency rates or equity index fluctuations. Option contracts give the purchaser the right, but not the obligation, to purchase from or sell to the option writer financial instruments, commodities or currencies within a defined time period for a specified price. The premium received by the Company upon writing an option contract is recorded as a liability, marked to market on a daily basis and is included in securities sold, not yet purchased in the condensed consolidated balance sheets. In writing an option, the Company bears the market risk of an unfavorable change in the financial instrument underlying the written option. Exercise of an option written by the Company could result in the Company selling or buying a financial instrument at a price different from the current fair value. In the normal course of trading activities in its investment portfolio, the Company trades and holds certain derivative contracts, such as written options, which constitute guarantees. The maximum payout for written put options is limited to the number of contracts written and the related strike prices and the maximum payout for written call options is dependent upon the market price of the underlying security at the date of a payout event. As of June 30, 2018 , the investment portfolio had a maximum payout amount of approximately $653.4 million ( December 31, 2017 - $ 399.2 million ) relating to written put option contracts with expiration ranging from one month to seven months from the balance sheet date. The maximum payout amount could be offset by the subsequent sale, if any, of assets obtained via the settlement of a payout event. The fair value of these written put options as of June 30, 2018 was $4.4 million ( December 31, 2017 - $ 3.5 million) and is included in securities sold, not yet purchased in the condensed consolidated balance sheets. Swaption contracts give the Company the right, but not the obligation, to enter into a specified interest-rate swap within a specified period of time. The Company’s market and counterparty credit risk is limited to the premium paid to enter into the swaption contract and net unrealized gains. Total return swaps, contracts for differences, index swaps, and interest rate swaps that involve the exchange of cash flows between the Company and counterparties are based on the change in the fair value of a particular equity, index, or interest rate on a specified notional holding. The use of these contracts exposes the Company to market risks equivalent to actually holding securities of the notional value but typically involve little capital commitment relative to the exposure achieved. The gains or losses of the Company may therefore be magnified on the capital commitment. Credit derivatives Credit default swaps protect the buyer against the loss of principal on one or more underlying bonds, loans, or mortgages in the event the issuer suffers a credit event. Typical credit events include failure to pay or restructuring of obligations, bankruptcy, dissolution or insolvency of the underlying issuer. The buyer of the protection pays an initial and/or a periodic premium to the seller and receives protection for the period of the contract. If there is not a credit event, as defined in the contract, the buyer receives no payments from the seller. If there is a credit event, the buyer receives a payment from the seller of protection as calculated by the contract between the two parties. The Company may also enter into index and/or basket credit default swaps where the credit derivative may reference a basket of single-name credit default swaps or a broad-based index. Generally, in the event of a default on one of the underlying names, the buyer will receive a pro-rata portion of the total notional amount of the credit default index or basket contract from the seller. When the Company purchases single-name, index and basket credit default swaps, the Company is exposed to counterparty nonperformance. Upon selling credit default swap protection, the Company may expose itself to the risk of loss from related credit events specified in the contract. Credit spreads of the underlying positions together with the period of expiration is indicative of the likelihood of a credit event under the credit default swap contract and the Company’s risk of loss. Higher credit spreads and shorter expiration dates are indicative of a higher likelihood of a credit event resulting in the Company’s payment to the buyer of protection. Lower credit spreads and longer expiration dates would indicate the opposite and lowers the likelihood the Company needs to pay the buyer of protection. As of June 30, 2018 , there was no cash collateral received specifically related to written credit default swaps as collateral is based on the net exposure associated with all derivative instruments subject to applicable netting agreements with counterparties and may not be specific to any individual derivative contract. The following table sets forth certain information related to the Company’s written credit derivatives as of June 30, 2018 and December 31, 2017 : June 30, 2018 Maximum Payout/ Notional Amount Fair Value of Written Credit Derivatives (2) Credit Spreads on underlying (basis points) 0-5 years 5 years or Total Written (1) Asset Liability Net Asset/(Liability) Single name (0 - 250) $ 2,375 $ 2,628 $ 5,003 $ — $ 2,147 $ (2,147 ) December 31, 2017 Maximum Payout/ Notional Amount Fair Value of Written Credit Derivatives (2) Credit Spreads on underlying (basis points) 0-5 years 5 years or Total Written (1) Asset Liability Net Asset/(Liability) Single name (0 - 250) $ — $ 2,351 $ 2,351 $ — $ 2,085 $ (2,085 ) (1) As of June 30, 2018 and December 31, 2017 , the Company did not hold any offsetting buy protection credit derivatives with the same underlying reference obligation. (2) Fair value amounts of derivative contracts are shown on a gross basis prior to cash collateral or counterparty netting. Concentrations of credit risk Investments In addition to off-balance sheet risks related to specific financial instruments, the Company may be subject to concentrations of credit risk with certain counterparties. Substantially all securities transactions and individual counterparty concentrations are with major securities firms, such as prime brokers or their affiliates. However, the Company reduces its credit risk with counterparties by entering into master netting agreements. Therefore, assets represent the Company’s greater unrealized gains less unrealized losses for derivative contracts in which the Company has master netting agreements. Similarly, liabilities represent the Company’s greater unrealized losses less unrealized gains for derivative contracts in which the Company has master netting agreements. Furthermore, the Company obtains collateral from counterparties to reduce its exposure to counterparty credit risk. The Company’s maximum exposure to credit risk associated with counterparty nonperformance on derivative contracts is limited to the net unrealized gains by counterparties inherent in such contracts which are recognized in the condensed consolidated balance sheets. As of June 30, 2018 , the Company’s maximum counterparty credit risk exposure was $43.2 million ( December 31, 2017 - $ 76.4 million). 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	6 Months Ended
	Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Investments Loan and other participation interests purchased by the Company, such as bank debt, may include revolving credit arrangements or other financing commitments obligating the Company to advance additional amounts on demand. In the normal course of business, the Company, as part of its investment strategy, enters into contracts that contain a variety of indemnifications and warranties. The Company’s maximum exposure under these arrangements is unknown, as this would involve future claims that may be made against the Company that have not yet occurred. However, the Company has not had prior claims or losses pursuant to these contracts and expects the risk of loss to be remote. Thus, no amounts have been accrued related to such indemnifications. The Company also indemnifies TP GP, Third Point LLC and its employees from and against any loss or expense, including, without limitation any judgment, settlement, legal fees and other costs. Any expenses related to this indemnification are reflected in net investment income in the condensed consolidated statements of income (loss) . 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. 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 owing 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.

Segment reporting

Segment reporting	6 Months Ended
	Jun. 30, 2018
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. The Company has also identified a corporate function that includes the Company’s investment income on capital, certain general and administrative expenses related to corporate activities, interest expense and income tax expense . 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 three and six months ended June 30, 2018 and 2017 : Three months ended June 30, 2018 Property and Casualty Reinsurance Corporate Total Revenues Gross premiums written $ 49,765 $ — $ 49,765 Gross premiums ceded (3,479 ) — (3,479 ) Net premiums written 46,286 — 46,286 Change in net unearned premium reserves 95,207 — 95,207 Net premiums earned 141,493 — 141,493 Expenses Loss and loss adjustment expenses incurred, net 84,000 — 84,000 Acquisition costs, net 57,584 — 57,584 General and administrative expenses 4,963 4,733 9,696 Total expenses 146,547 4,733 151,280 Net underwriting loss (5,054 ) n/a n/a Net investment income 4,922 26,253 31,175 Other expenses (3,983 ) — (3,983 ) Interest expense — (2,051 ) (2,051 ) Foreign exchange gains (1) 8,847 — 8,847 Income tax expense — (4,390 ) (4,390 ) Net income attributable to noncontrolling interests in related party — (209 ) (209 ) Segment income $ 4,732 $ 14,870 Net loss attributable to Third Point Re common shareholders $ 19,602 Property and Casualty Reinsurance - Underwriting Ratios (2): Loss ratio 59.4 % Acquisition cost ratio 40.7 % Composite ratio 100.1 % General and administrative expense ratio 3.5 % Combined ratio 103.6 % (1) Foreign exchange gains (losses) primarily result from the revaluation of foreign currency loss and loss adjustment expense reserves denominated in non-U.S. dollar. Non-U.S. dollar reinsurance assets, or balances held in trust accounts securing reinsurance liabilities generally offset reinsurance liabilities in the same non-U.S. dollar currencies resulting in minimal net exposure. As a result, the foreign exchange gains (losses) on loss and loss adjustment expense reserves in the period are offset by corresponding foreign exchange gains (losses) included in net investment income resulting from the revaluation of foreign currency reinsurance collateral held in trust accounts, which is presented as part of the Property and Casualty segment. In the three months ended March 31, 2018, the Company modified the presentation of its operating segment to allocate foreign exchange gains (losses) to the Property and Casualty Reinsurance Segment to better align with the reinsurance activities that result in these foreign exchange gains and losses. These amounts had previously been presented as part of the Company’s corporate function. Prior period segment results have been adjusted to conform to this presentation. (2) Underwriting ratios are calculated by dividing the related expense by net premiums earned. Six months ended June 30, 2018 Property and Casualty Reinsurance Corporate Total Revenues Gross premiums written $ 428,125 $ — $ 428,125 Gross premiums ceded (18,125 ) — (18,125 ) Net premiums written 410,000 — 410,000 Change in net unearned premium reserves (126,021 ) — (126,021 ) Net premiums earned 283,979 — 283,979 Expenses Loss and loss adjustment expenses incurred, net 176,620 — 176,620 Acquisition costs, net 108,989 — 108,989 General and administrative expenses 9,787 9,390 19,177 Total expenses 295,396 9,390 304,786 Net underwriting loss (11,417 ) n/a n/a Net investment income 7,521 21,446 28,967 Other expenses (7,978 ) — (7,978 ) Interest expense — (4,080 ) (4,080 ) Foreign exchange gains (1) 2,236 — 2,236 Income tax expense — (4,518 ) (4,518 ) Net income attributable to noncontrolling interests in related party — (219 ) (219 ) Segment income (loss) $ (9,638 ) $ 3,239 Net loss attributable to Third Point Re common shareholders $ (6,399 ) Property and Casualty Reinsurance - Underwriting Ratios (2): Loss ratio 62.2 % Acquisition cost ratio 38.4 % Composite ratio 100.6 % General and administrative expense ratio 3.4 % Combined ratio 104.0 % (1) Foreign exchange gains (losses) primarily result from the revaluation of foreign currency loss and loss adjustment expense reserves denominated in non-U.S. dollar. Non-U.S. dollar reinsurance assets, or balances held in trust accounts securing reinsurance liabilities generally offset reinsurance liabilities in the same non-U.S. dollar currencies resulting in minimal net exposure. As a result, the foreign exchange gains (losses) on loss and loss adjustment expense reserves in the period are offset by corresponding foreign exchange gains (losses) included in net investment income resulting from the revaluation of foreign currency reinsurance collateral held in trust accounts, which is presented as part of the Property and Casualty segment. In the three months ended March 31, 2018, the Company modified the presentation of its operating segment to allocate foreign exchange gains (losses) to the Property and Casualty Reinsurance Segment to better align with the reinsurance activities that result in these foreign exchange gains and losses. These amounts had previously been presented as part of the Company’s corporate function. Prior period segment results have been adjusted to conform to this presentation. (2) Underwriting ratios are calculated by dividing the related expense by net premiums earned. Three months ended June 30, 2017 Property and Casualty Reinsurance Corporate Total Revenues Gross premiums written $ 156,564 $ — $ 156,564 Gross premiums ceded (1,425 ) — (1,425 ) Net premiums written 155,139 — 155,139 Change in net unearned premium reserves 18,419 — 18,419 Net premiums earned 173,558 — 173,558 Expenses Loss and loss adjustment expenses incurred, net 107,379 — 107,379 Acquisition costs, net 68,641 — 68,641 General and administrative expenses 9,649 5,365 15,014 Total expenses 185,669 5,365 191,034 Net underwriting loss (12,111 ) n/a n/a Net investment income 31,206 76,119 107,325 Other expenses (2,105 ) — (2,105 ) Interest expense — (2,051 ) (2,051 ) Foreign exchange losses (1) (4,781 ) — (4,781 ) Income tax expense — (5,307 ) (5,307 ) Net income attributable to noncontrolling interests in related party — (1,027 ) (1,027 ) Segment income $ 12,209 $ 62,369 Net income available to Third Point Re common shareholders $ 74,578 Property and Casualty Reinsurance - Underwriting Ratios (2): Loss ratio 61.9 % Acquisition cost ratio 39.5 % Composite ratio 101.4 % General and administrative expense ratio 5.6 % Combined ratio 107.0 % (1) Foreign exchange gains (losses) primarily result from the revaluation of foreign currency loss and loss adjustment expense reserves denominated in non-U.S. dollar. Non-U.S. dollar reinsurance assets, or balances held in trust accounts securing reinsurance liabilities generally offset reinsurance liabilities in the same non-U.S. dollar currencies resulting in minimal net exposure. As a result, the foreign exchange gains (losses) on loss and loss adjustment expense reserves in the period are offset by corresponding foreign exchange gains (losses) included in net investment income resulting from the revaluation of foreign currency reinsurance collateral held in trust accounts, which is presented as part of the Property and Casualty segment. In the three months ended March 31, 2018, the Company modified the presentation of its operating segment to allocate foreign exchange gains (losses) to the Property and Casualty Reinsurance Segment to better align with the reinsurance activities that result in these foreign exchange gains and losses. These amounts had previously been presented as part of the Company’s corporate function. Prior period segment results have been adjusted to conform to this presentation. (2) Underwriting ratios are calculated by dividing the related expense by net premiums earned. Six months ended June 30, 2017 Property and Casualty Reinsurance Corporate Total Revenues Gross premiums written $ 302,918 $ — $ 302,918 Gross premiums ceded (2,550 ) — (2,550 ) Net premiums written 300,368 — 300,368 Change in net unearned premium reserves 11,199 — 11,199 Net premiums earned 311,567 — 311,567 Expenses Loss and loss adjustment expenses incurred, net 193,274 — 193,274 Acquisition costs, net 123,093 — 123,093 General and administrative expenses 15,961 9,625 25,586 Total expenses 332,328 9,625 341,953 Net underwriting loss (20,761 ) n/a n/a Net investment income 67,326 168,509 235,835 Other expenses (5,006 ) — (5,006 ) Interest expense — (4,077 ) (4,077 ) Foreign exchange losses (1) (4,796 ) — (4,796 ) Income tax expense — (10,605 ) (10,605 ) Net income attributable to noncontrolling interests in related party — (2,201 ) (2,201 ) Segment income $ 36,763 $ 142,001 Net income available to Third Point Re common shareholders $ 178,764 Property and Casualty Reinsurance - Underwriting Ratios (2): Loss ratio 62.0 % Acquisition cost ratio 39.5 % Composite ratio 101.5 % General and administrative expense ratio 5.1 % Combined ratio 106.6 % (1) Foreign exchange gains (losses) primarily result from the revaluation of foreign currency loss and loss adjustment expense reserves denominated in non-U.S. dollar. Non-U.S. dollar reinsurance assets, or balances held in trust accounts securing reinsurance liabilities generally offset reinsurance liabilities in the same non-U.S. dollar currencies resulting in minimal net exposure. As a result, the foreign exchange gains (losses) on loss and loss adjustment expense reserves in the period are offset by corresponding foreign exchange gains (losses) included in net investment income resulting from the revaluation of foreign currency reinsurance collateral held in trust accounts, which is presented as part of the Property and Casualty segment. In the three months ended March 31, 2018, the Company modified the presentation of its operating segment to allocate foreign exchange gains (losses) to the Property and Casualty Reinsurance Segment to better align with the reinsurance activities that result in these foreign exchange gains and losses. These amounts had previously been presented as part of the Company’s corporate function. Prior period segment results have been adjusted to conform to this presentation. (2) 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 three and six months ended June 30, 2018 and 2017 as a percentage of total gross premiums written in the relevant period: Three months ended Six months ended June 30, 2018 June 30, 2017 June 30, 2018 June 30, 2017 Largest contract 32.8 % 65.9 % 21.4 % 34.0 % Second largest contract 15.4 % 12.9 % n/a 17.9 % Third largest contract 13.8 % n/a n/a n/a Total for contracts contributing greater than 10% each 62.0 % 78.8 % 21.4 % 51.9 % Total for contracts contributing less than 10% each 38.0 % 21.2 % 78.6 % 48.1 % 100.0 % 100.0 % 100.0 % 100.0 % The following table provides a breakdown of the Company’s gross premiums written by line of business for the three and six months ended June 30, 2018 and 2017 : Three months ended Six months ended June 30, 2018 June 30, 2017 June 30, 2018 June 30, 2017 Property $ 1,660 3.3 % $ (8,827 ) (5.6 )% $ 2,029 0.5 % $ (8,815 ) (2.9 )% Casualty 43,510 87.4 % 15,008 9.6 % 196,730 46.0 % 102,213 33.7 % Specialty 254 0.6 % 41,032 26.2 % 225,025 52.5 % 100,169 33.1 % Total prospective reinsurance contracts 45,424 91.3 % 47,213 30.2 % 423,784 99.0 % 193,567 63.9 % Retroactive reinsurance contracts 4,341 8.7 % 109,351 69.8 % 4,341 1.0 % 109,351 36.1 % $ 49,765 100.0 % $ 156,564 100.0 % $ 428,125 100.0 % $ 302,918 100.0 % 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 three and six months ended June 30, 2018 and 2017 : Three months ended Six months ended June 30, 2018 June 30, 2017 June 30, 2018 June 30, 2017 Largest broker $ 19,858 39.9 % $ 107,612 68.7 % $ 165,582 38.7 % $ 107,612 35.5 % Second largest broker n/a n/a 22,448 14.3 % 159,413 37.2 % 73,499 24.3 % Third largest broker n/a n/a n/a n/a 52,982 12.4 % 35,269 11.6 % Fourth largest broker n/a n/a n/a n/a n/a n/a 31,853 10.5 % Other 29,907 60.1 % 26,504 17.0 % 50,148 11.7 % 54,685 18.1 % $ 49,765 100.0 % $ 156,564 100.0 % $ 428,125 100.0 % $ 302,918 100.0 % The following table provides a breakdown of the Company’s gross premiums written by domicile of the ceding companies for the three and six months ended June 30, 2018 and 2017 : Three months ended Six months ended June 30, 2018 June 30, 2017 June 30, 2018 June 30, 2017 United States $ 31,400 63.1 % $ 1,340 0.8 % $ 264,271 61.7 % $ 43,769 14.4 % Bermuda 3,357 6.7 % — — % 73,710 17.2 % 54,075 17.9 % United Kingdom 15,008 30.2 % 150,744 96.3 % 66,993 15.7 % 200,594 66.2 % Other — — % 4,480 2.9 % 23,151 5.4 % 4,480 1.5 % $ 49,765 100.0 % $ 156,564 100.0 % $ 428,125 100.0 % $ 302,918 100.0 %

Supplemental Guarantor Informat

Supplemental Guarantor Information	6 Months Ended
	Jun. 30, 2018
Condensed Financial Information of Parent Company Only 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 condensed consolidating balance sheets as of June 30, 2018 and December 31, 2017 , condensed consolidating statements of income for the three and six months ended June 30, 2018 and 2017 and condensed consolidating statements of cash flows for the six months ended June 30, 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. CONDENSED CONSOLIDATING BALANCE SHEET As of June 30, 2018 Third Point Re TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Assets Equity securities $ — $ — $ 2,427,768 $ — $ 2,427,768 Debt securities — — 617,913 — 617,913 Other investments — — 52,444 — 52,444 Total investments in securities — — 3,098,125 — 3,098,125 Cash and cash equivalents 1 190 17,260 — 17,451 Restricted cash and cash equivalents — — 569,968 — 569,968 Investment in subsidiaries 1,630,308 271,249 165,315 (2,066,872 ) — Due from brokers — — 258,764 — 258,764 Derivative assets, at fair value — — 34,738 — 34,738 Interest and dividends receivable — — 4,385 — 4,385 Reinsurance balances receivable — — 631,952 — 631,952 Deferred acquisition costs, net — — 264,408 — 264,408 Unearned premiums ceded — — 17,606 — 17,606 Loss and loss adjustment expenses recoverable — — 1,414 — 1,414 Amounts due from (to) affiliates (37,588 ) 77 37,511 — — Other assets 254 — 10,554 — 10,808 Total assets $ 1,592,975 $ 271,516 $ 5,112,000 $ (2,066,872 ) $ 4,909,619 Liabilities Accounts payable and accrued expenses (1) $ 1,221 $ (9,663 ) $ 20,486 $ — $ 12,044 Reinsurance balances payable — — 74,013 — 74,013 Deposit liabilities — — 129,700 — 129,700 Unearned premium reserves — — 792,096 — 792,096 Loss and loss adjustment expense reserves — — 791,313 — 791,313 Securities sold, not yet purchased, at fair value — — 443,216 — 443,216 Due to brokers — — 926,588 — 926,588 Derivative liabilities, at fair value — — 12,380 — 12,380 Performance fee payable to related party — — 4,641 — 4,641 Interest and dividends payable — 3,022 2,696 — 5,718 Senior notes payable, net of deferred costs — 113,821 — — 113,821 Total liabilities 1,221 107,180 3,197,129 — 3,305,530 Redeemable noncontrolling interests in related party — — 7,179 — 7,179 Shareholders’ equity Common shares 9,963 — 1,239 (1,239 ) 9,963 Additional paid-in capital 994,170 165,535 1,534,496 (1,700,031 ) 994,170 Retained earnings (deficit) 587,621 (1,199 ) 366,801 (365,602 ) 587,621 Shareholders’ equity attributable to Third Point Re common shareholders 1,591,754 164,336 1,902,536 (2,066,872 ) 1,591,754 Noncontrolling interests in related party — — 5,156 — 5,156 Total shareholders’ equity 1,591,754 164,336 1,907,692 (2,066,872 ) 1,596,910 Total liabilities, noncontrolling interests and shareholders’ equity $ 1,592,975 $ 271,516 $ 5,112,000 $ (2,066,872 ) $ 4,909,619 (1) Negative balance of $9.7 million represents net deferred tax assets that are offset by net deferred tax liabilities in Third Point Re USA of $10.0 million , resulting in a net liability position as of June 30, 2018 . CONDENSED CONSOLIDATING BALANCE SHEET As of December 31, 2017 Third TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Assets Equity securities $ — $ — $ 2,283,050 $ — $ 2,283,050 Debt securities — — 675,158 — 675,158 Other investments — — 37,731 — 37,731 Total investments in securities — — 2,995,939 — 2,995,939 Cash and cash equivalents 9 199 7,989 — 8,197 Restricted cash and cash equivalents — — 541,136 — 541,136 Investment in subsidiaries 1,657,467 274,272 164,909 (2,096,648 ) — Due from brokers — — 305,093 — 305,093 Derivative assets, at fair value — — 73,372 — 73,372 Interest and dividends receivable — — 3,774 — 3,774 Reinsurance balances receivable — — 476,008 — 476,008 Deferred acquisition costs, net — — 258,793 — 258,793 Unearned premiums ceded — — 1,049 — 1,049 Loss and loss adjustment expenses recoverable — — 1,113 — 1,113 Amounts due from (to) affiliates (1,288 ) 412 876 — — Other assets 664 — 6,656 — 7,320 Total assets $ 1,656,852 $ 274,883 $ 4,836,707 $ (2,096,648 ) $ 4,671,794 Liabilities Accounts payable and accrued expenses (1) $ 763 $ (8,805 ) $ 42,674 $ — $ 34,632 Reinsurance balances payable — — 41,614 — 41,614 Deposit liabilities — — 129,133 — 129,133 Unearned premium reserves — — 649,518 — 649,518 Loss and loss adjustment expense reserves — — 720,570 — 720,570 Securities sold, not yet purchased, at fair value — — 394,278 — 394,278 Securities sold under an agreement to repurchase — — 29,618 — 29,618 Due to brokers — — 770,205 — 770,205 Derivative liabilities, at fair value — — 14,503 — 14,503 Interest and dividends payable — 3,055 1,220 — 4,275 Senior notes payable, net of deferred costs — 113,733 — — 113,733 Total liabilities 763 107,983 2,793,333 — 2,902,079 Redeemable noncontrolling interests in related party — — 108,219 — 108,219 Shareholders’ equity Common shares 10,723 — 1,250 (1,250 ) 10,723 Treasury shares (48,253 ) — — — (48,253 ) Additional paid-in capital 1,099,599 165,097 1,531,770 (1,696,867 ) 1,099,599 Retained earnings (deficit) 594,020 1,803 396,728 (398,531 ) 594,020 Shareholders' equity attributable to Third Point Re common shareholders 1,656,089 166,900 1,929,748 (2,096,648 ) 1,656,089 Noncontrolling interests in related party — — 5,407 — 5,407 Total shareholders' equity 1,656,089 166,900 1,935,155 (2,096,648 ) 1,661,496 Total liabilities, noncontrolling interests and shareholders’ equity $ 1,656,852 $ 274,883 $ 4,836,707 $ (2,096,648 ) $ 4,671,794 (1) Negative balance of $8.8 million represents net deferred tax assets that are offset by net deferred tax liabilities in Third Point Re USA of $9.9 million , resulting in a net liability position as of December 31, 2017. CONDENSED CONSOLIDATING STATEMENTS OF INCOME (LOSS) For the three months ended June 30, 2018 Third TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Revenues Gross premiums written $ — $ — $ 49,765 $ — $ 49,765 Gross premiums ceded — — (3,479 ) — (3,479 ) Net premiums written — — 46,286 — 46,286 Change in net unearned premium reserves — — 95,207 — 95,207 Net premiums earned — — 141,493 — 141,493 Net investment income — — 31,175 — 31,175 Equity in earnings (losses) of subsidiaries 21,319 1,847 (13 ) (23,153 ) — Total revenues 21,319 1,847 172,655 (23,153 ) 172,668 Expenses Loss and loss adjustment expenses incurred, net — — 84,000 — 84,000 Acquisition costs, net — — 57,584 — 57,584 General and administrative expenses 1,717 19 7,960 — 9,696 Other expenses — — 3,983 — 3,983 Interest expense — 2,051 — — 2,051 Foreign exchange gains — — (8,847 ) — (8,847 ) Total expenses 1,717 2,070 144,680 — 148,467 Income (loss) before income tax (expense) benefit 19,602 (223 ) 27,975 (23,153 ) 24,201 Income tax (expense) benefit — 435 (4,825 ) — (4,390 ) Net income 19,602 212 23,150 (23,153 ) 19,811 Net income attributable to noncontrolling interests in related party — — (209 ) — (209 ) Net income available to Third Point Re common shareholders $ 19,602 $ 212 $ 22,941 $ (23,153 ) $ 19,602 For the six months ended June 30, 2018 Third TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Revenues Gross premiums written $ — $ — $ 428,125 $ — $ 428,125 Gross premiums ceded — — (18,125 ) — (18,125 ) Net premiums written — — 410,000 — 410,000 Change in net unearned premium reserves — — (126,021 ) — (126,021 ) Net premiums earned — — 283,979 — 283,979 Net investment income — — 28,967 — 28,967 Equity in earnings (losses) of subsidiaries (3,038 ) 239 (30 ) 2,829 — Total revenues (3,038 ) 239 312,916 2,829 312,946 Expenses Loss and loss adjustment expenses incurred, net — — 176,620 — 176,620 Acquisition costs, net — — 108,989 — 108,989 General and administrative expenses 3,361 22 15,794 — 19,177 Other expenses — — 7,978 — 7,978 Interest expense — 4,080 — — 4,080 Foreign exchange gains — — (2,236 ) — (2,236 ) Total expenses 3,361 4,102 307,145 — 314,608 Income (loss) before income tax (expense) benefit (6,399 ) (3,863 ) 5,771 2,829 (1,662 ) Income tax (expense) benefit — 861 (5,379 ) — (4,518 ) Net income (loss) (6,399 ) (3,002 ) 392 2,829 (6,180 ) Net income attributable to noncontrolling interests in related party — — (219 ) — (219 ) Net income (loss) available (attributable) to Third Point Re common shareholders $ (6,399 ) $ (3,002 ) $ 173 $ 2,829 $ (6,399 ) CONDENSED CONSOLIDATING STATEMENTS OF INCOME For the three months ended June 30, 2017 Third TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Revenues Gross premiums written $ — $ — $ 156,564 $ — $ 156,564 Gross premiums ceded — — (1,425 ) — (1,425 ) Net premiums written — — 155,139 — 155,139 Change in net unearned premium reserves — — 18,419 — 18,419 Net premiums earned — — 173,558 — 173,558 Net investment income — — 107,325 — 107,325 Equity in earnings (losses) of subsidiaries 75,843 4,843 (10 ) (80,676 ) — Total revenues 75,843 4,843 280,873 (80,676 ) 280,883 Expenses Loss and loss adjustment expenses incurred, net — — 107,379 — 107,379 Acquisition costs, net — — 68,641 — 68,641 General and administrative expenses 1,265 12 13,737 — 15,014 Other expenses — — 2,105 — 2,105 Interest expense — 2,051 — — 2,051 Foreign exchange losses — — 4,781 — 4,781 Total expenses 1,265 2,063 196,643 — 199,971 Income before income tax (expense) benefit 74,578 2,780 84,230 (80,676 ) 80,912 Income tax (expense) benefit — 722 (6,029 ) — (5,307 ) Net income 74,578 3,502 78,201 (80,676 ) 75,605 Net income attributable to noncontrolling interests in related party — — (1,027 ) — (1,027 ) Net income available to Third Point Re common shareholders $ 74,578 $ 3,502 $ 77,174 $ (80,676 ) $ 74,578 For the six months ended June 30, 2017 Third TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Revenues Gross premiums written $ — $ — $ 302,918 $ — $ 302,918 Gross premiums ceded — — (2,550 ) — (2,550 ) Net premiums written — — 300,368 — 300,368 Change in net unearned premium reserves — — 11,199 — 11,199 Net premiums earned — — 311,567 — 311,567 Net investment income — — 235,835 — 235,835 Equity in earnings (losses) of subsidiaries 181,213 13,832 (5 ) (195,040 ) — Total revenues 181,213 13,832 547,397 (195,040 ) 547,402 Expenses Loss and loss adjustment expenses incurred, net — — 193,274 — 193,274 Acquisition costs, net — — 123,093 — 123,093 General and administrative expenses 2,449 20 23,117 — 25,586 Other expenses — — 5,006 — 5,006 Interest expense — 4,077 — — 4,077 Foreign exchange losses — — 4,796 — 4,796 Total expenses 2,449 4,097 349,286 — 355,832 Income before income tax (expense) benefit 178,764 9,735 198,111 (195,040 ) 191,570 Income tax (expense) benefit — 1,434 (12,039 ) — (10,605 ) Net income 178,764 11,169 186,072 (195,040 ) 180,965 Net income attributable to noncontrolling interests in related party — — (2,201 ) — (2,201 ) Net income available to Third Point Re common shareholders $ 178,764 $ 11,169 $ 183,871 $ (195,040 ) $ 178,764 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS For the six months ended June 30, 2018 Third TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Operating activities Net income (loss) $ (6,399 ) $ (3,002 ) $ 392 $ 2,829 $ (6,180 ) Adjustments to reconcile net loss to net cash provided by (used in) operating activities: Equity in (earnings) losses of subsidiaries 3,038 (239 ) 30 (2,829 ) — Share compensation expense 279 — 2,279 — 2,558 Net interest expense on deposit liabilities — — 2,449 — 2,449 Net unrealized loss on investments and derivatives — — 95,513 — 95,513 Net realized gain on investments and derivatives — — (130,500 ) — (130,500 ) Net foreign exchange gains — — (2,236 ) — (2,236 ) Amortization of premium and accretion of discount, net — 88 2,825 — 2,913 Changes in assets and liabilities: Reinsurance balances receivable — — (157,498 ) — (157,498 ) Deferred acquisition costs, net — — (5,615 ) — (5,615 ) Unearned premiums ceded — — (16,557 ) — (16,557 ) Loss and loss adjustment expenses recoverable — — (301 ) — (301 ) Other assets 410 — (3,947 ) — (3,537 ) Interest and dividends receivable, net — (33 ) 865 — 832 Unearned premium reserves — — 142,578 — 142,578 Loss and loss adjustment expense reserves — — 74,655 — 74,655 Accounts payable and accrued expenses 458 (858 ) (22,164 ) — (22,564 ) Reinsurance balances payable — — 32,208 — 32,208 Performance fees payable to related party — — 4,641 — 4,641 Amounts due from (to) affiliates 36,300 335 (36,635 ) — — Net cash provided by (used in) operating activities 34,086 (3,709 ) (17,018 ) — 13,359 Investing activities Purchases of investments — — (2,180,138 ) — (2,180,138 ) Proceeds from sales of investments — — 2,156,754 — 2,156,754 Purchases of investments to cover short sales — — (590,113 ) — (590,113 ) Proceeds from short sales of investments — — 628,913 — 628,913 Change in due to/from brokers, net — — 202,712 — 202,712 Decrease in securities sold under an agreement to repurchase — — (29,618 ) — (29,618 ) Net cash provided by investing activities — — 188,510 — 188,510 Financing activities Proceeds from issuance of Third Point Re common shares, net of costs — — — — — Taxes paid on withholding shares (74 ) — — — (74 ) Purchases of Third Point Re common shares under share repurchase program (60,420 ) — — — (60,420 ) Decrease in deposit liabilities, net — — (1,779 ) — (1,779 ) Change in total noncontrolling interests in related party, net — — (101,510 ) — (101,510 ) Dividend received by (paid to) parent 26,400 3,700 (30,100 ) — — Net cash provided by (used in) financing activities (34,094 ) 3,700 (133,389 ) — (163,783 ) Net increase (decrease) in cash, cash equivalents and restricted cash (8 ) (9 ) 38,103 — 38,086 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 $ 1 $ 190 $ 587,228 $ — $ 587,419 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS For the six months ended June 30, 2017 Third TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Operating activities Net income $ 178,764 $ 11,169 $ 186,072 $ (195,040 ) $ 180,965 Adjustments to reconcile net income to net cash provided by (used in) operating activities: Equity in (earnings) losses of subsidiaries (181,213 ) (13,832 ) 5 195,040 — Share compensation expense 73 — 3,301 — 3,374 Net interest expense on deposit liabilities — — 312 — 312 Net unrealized gain on investments and derivatives — — (128,168 ) — (128,168 ) Net realized gain on investments and derivatives — — (154,504 ) — (154,504 ) Net foreign exchange losses — — 4,796 — 4,796 Amortization of premium and accretion of discount, net — 88 (210 ) — (122 ) Changes in assets and liabilities: Reinsurance balances receivable — — (85,733 ) — (85,733 ) Deferred acquisition costs, net — — 18,425 — 18,425 Unearned premiums ceded — — (1,938 ) — (1,938 ) Loss and loss adjustment expenses recoverable — — (1,712 ) — (1,712 ) Other assets 302 (1,663 ) 7,519 — 6,158 Interest and dividends receivable, net — (35 ) 2,988 — 2,953 Unearned premium reserves — — (9,261 ) — (9,261 ) Loss and loss adjustment expense reserves — — 63,769 — 63,769 Accounts payable and accrued expenses 67 — 7,482 — 7,549 Reinsurance balances payable — — 22,237 — 22,237 Performance fees payable to related party — — 53,455 — 53,455 Amounts due from (to) affiliates 40,523 (3,831 ) (36,692 ) — — Net cash provided by (used in) operating activities 38,516 (8,104 ) (47,857 ) — (17,445 ) Investing activities Purchases of investments — — (1,712,929 ) — (1,712,929 ) Proceeds from sales of investments — — 1,966,027 — 1,966,027 Purchases of investments to cover short sales — — (306,237 ) — (306,237 ) Proceeds from short sales of investments — — 462,066 — 462,066 Change in due to/from brokers, net — — (261,994 ) — (261,994 ) Net cash provided by investing activities — — 146,933 — 146,933 Financing activities Proceeds from issuance of Third Point Re common shares, net of costs 998 — — — 998 Purchases of Third Point Re common shares under share repurchase program (40,864 ) — — — (40,864 ) Decrease in deposit liabilities, net — — (124 ) — (124 ) Change in total noncontrolling interests in related party, net — — (18,066 ) — (18,066 ) Dividend received by (paid to) parent — 8,300 (8,300 ) — — Net cash provided by (used in) financing activities (39,866 ) 8,300 (26,490 ) — (58,056 ) Net increase (decrease) in cash, cash equivalents and restricted cash (1,350 ) 196 72,586 — 71,432 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 $ 279 $ 275 $ 379,769 $ — $ 380,323

Subsequent events

Subsequent events	6 Months Ended
	Jun. 30, 2018
Subsequent Events [Abstract]
Subsequent Events	Change in Investment Management Structure 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 (“LPA”) of Third Point Enhanced LP (“TP Fund”) with Third Point Advisors LLC (“TP GP”) and others, effective August 31, 2018. In accordance with the LPA, TP GP will serve as the general partner of TP Fund. On July 31, 2018, Third Point Re BDA and Third Point Re USA, together the “TPRE Limited Partners”, and TP Fund executed a Subscription Agreement, pursuant to which the TPRE Limited Partners will transfer assets and related liabilities (other than certain collateral assets) from their separate accounts to TP Fund, and TP Fund will issue limited partner interests to the TPRE Limited Partners proportionate to and based on the net asset value of the assets and related liabilities transferred by each such entity on the applicable transfer date. Certain collateral assets consisting of debt securities and restricted cash will not be transferred to TP Fund. Such collateral assets will be managed by Third Point LLC under a separate investment management agreement. Third Point Re BDA and Third Point Re USA will begin transferring the assets and related liabilities from their separate accounts to TP Fund on August 31, 2018, and substantially all of the assets are expected to be transferred by September 30, 2018. Amended and Restated Joint Venture and Investment Management Agreement dated June 22, 2016 between Third Point Re, Third Point Re BDA, Third Point LLC and TP GP and the Amended and Restated Joint Venture and Investment Management Agreement dated June 22, 2016 between Third Point Re USA, Third Point Re (USA) Holdings Inc., Third Point LLC and TP GP (the “Existing Agreements”) will terminate on the date that all assets and related liabilities to be transferred to TP Fund under the Subscription Agreement have been transferred to TP Fund. Pursuant to an Investment Management Agreement between Third Point LLC and TP Fund dated July 31, 2018 (the “TP Fund IMA”), Third Point LLC will be the investment manager for TP Fund. The TP Fund IMA will continue until terminated by any party thereto upon 90 days’ prior written notice to the other party. The Company expects its overall investment exposures, returns, fees paid to Third Point LLC and TP GP as well as the investment guidelines, liquidity and redemption rights to be generally similar under the new LPA and TP Fund compared to what would have been expected under the separate accounts managed under the Existing Agreements, assuming similar underlying investment portfolio returns and exposure levels. However, there can be no assurance of such results. As a result of the change described above, the Company’s investments in TP Fund will be presented on the condensed consolidated balance sheets as an investment in a related party investment fund. The Company does not expect significant changes to the presentation of its condensed consolidated statements of income as a result of this change. If the LPA had been in effect on June 30, 2018, we anticipate that the Company’s selected consolidated balance sheets data as of June 30, 2018 would have appeared as follows: June 30, 2018 As previously reported Pro-forma under new investment structure Selected Consolidated Balance Sheets Data: Total investments in securities (1) $ 3,098,125 $ 1,991,129 Total assets 4,909,619 3,504,693 Total liabilities 3,305,530 1,912,939 Shareholders’ equity attributable to Third Point Re common shareholders 1,591,754 1,591,754 Total shareholders’ equity $ 1,596,910 $ 1,591,754 (1) Total investments in securities included in “Pro-forma under new investment structure” include the Company’s investment in related party investment fund, Third Point Enhanced LP, and collateral assets consisting of debt securities. Unsecured Revolving Credit and Letter of Credit Facility Agreement On July 31, 2018, Third Point Re, Third Point Re BDA and Third Point Re USA entered into an Unsecured Revolving Credit and Letter of Credit Facility Agreement (the “Credit Agreement”) with SunTrust Bank, SunTrust Robinson Humphrey, Inc., RBC Capital Markets and ING Capital. The Credit Agreement provides for the issuance of up to $200.0 million of letters of credit to support obligations in connection with the reinsurance business of Third Point Re BDA and Third Point Re USA. Letters of credit fees are payable on account of each letter of credit issued under the unsecured facility at a rate of 1.50% per annum and the commitment fee is 0.20% per annum. The Credit Agreement expires on July 30, 2019. The Credit Agreement contains covenants that include, among other things: (i) the requirement that the Company initially maintain a minimum level of consolidated net worth of at least $1,114.2 million, (ii) the requirement that the Company maintain at all times a consolidated total debt to consolidated total capital ratio not greater than 0.35 : 1.00 , and (iii) the requirement that Third Point Re BDA and Third Point Re USA both maintain a financial strength rating of at least “A-” through November 30, 2018 and “B++” thereafter by A.M. Best. In addition, the Credit Agreement contains customary negative covenants applicable to the Company and its subsidiaries, including limitations on the ability to pay dividends and other payments in respect of equity interests at any time that the Company is otherwise in default with respect to certain provisions under the respective Credit Agreement, limitations on the ability to incur liens, sell assets, merge or consolidate with others, enter into transactions with affiliates, and limitations on the ability of its subsidiaries to incur indebtedness. The Credit Agreement also contains customary affirmative covenants, representations and warranties and events of default for credit facilities of its type.

Restricted cash and cash equi31

Restricted cash and cash equivalents and restricted investments (Tables)	6 Months Ended
	Jun. 30, 2018
Cash and Cash Equivalents [Abstract]
Schedule of restricted cash and cash equivalents	The following table provides a reconciliation of cash and cash equivalents, restricted cash and restricted investments as of June 30, 2018 and December 31, 2017 : June 30, December 31, Cash and cash equivalents $ 17,451 $ 8,197 Restricted cash securing letter of credit facilities (1) 240,545 250,487 Restricted cash securing other reinsurance contracts (2) 329,423 290,649 Total cash, cash equivalents and restricted cash (3) 587,419 549,333 Restricted investments securing other reinsurance contracts (2) 310,205 326,429 Total cash, cash equivalents, restricted cash and restricted investments $ 897,624 $ 875,762 (1) Restricted cash securing letter of credit facilities primarily pertains to letters of credit issued to clients and cash securing these obligations that the Company will not be released until the underlying reserves have been settled. The time period for which the Company expects these letters of credit to be in place varies from contract to contract, but can last several years. (2) Restricted cash and restricted investments securing other 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 all underlying risks have expired or have been settled. Restricted investments include certain investments in debt securities including U.S. Treasury securities and sovereign debt. 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 condensed consolidated statements of cash flows.

Investments (Tables)

Investments (Tables)	6 Months Ended
	Jun. 30, 2018
Fair Value Disclosures [Abstract]
Schedule of the separate account managed by TP LLC	The Company’s investments are managed by its investment manager, Third Point LLC (“Third Point LLC” or the “Investment Manager”), under long-term investment management contracts. The Company directly owns the investments that are held in separate accounts and managed by Third Point LLC. The following is a summary of the separate accounts managed by Third Point LLC: June 30, December 31, Assets Total investments in securities $ 3,097,918 $ 2,995,097 Cash and cash equivalents 43 8 Restricted cash and cash equivalents 569,968 541,136 Due from brokers 258,764 305,093 Derivative assets, at fair value 34,738 73,372 Interest and dividends receivable 4,385 3,774 Total assets 3,965,816 3,918,480 Liabilities and noncontrolling interests in related party Accounts payable and accrued expenses 3,070 5,137 Securities sold, not yet purchased 443,216 394,278 Securities sold under an agreement to repurchase — 29,618 Due to brokers 926,588 770,205 Derivative liabilities, at fair value 12,380 14,503 Performance fee payable to related party 4,641 — Interest and dividends payable 2,696 1,218 Total noncontrolling interests in related party (1) 12,335 113,626 Total liabilities and noncontrolling interests in related party 1,404,926 1,328,585 Total net investments managed by Third Point LLC $ 2,560,890 $ 2,589,895
Schedule of the largest concentration of the Company's asset-backed securities	As of June 30, 2018 and December 31, 2017 , the Company’s asset-backed securities (“ABS”) holdings were as follows: June 30, 2018 December 31, 2017 Reperforming loans $ 109,117 60.4 % $ 160,354 71.1 % Market place loans 60,664 33.6 % 52,584 23.3 % Other (1) 10,990 6.0 % 12,561 5.6 % $ 180,771 100.0 % $ 225,499 100.0 % (1) Other includes: U.S. Alt-A positions, collateralized debt obligations, commercial mortgage-backed securities, non-U.S. RMBS and aircraft ABS.
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 June 30, 2018 and December 31, 2017 : June 30, 2018 Quoted prices in active markets Significant other observable inputs Significant unobservable inputs Total (Level 1) (Level 2) (Level 3) Assets Equity securities $ 2,360,825 $ 5,812 $ — $ 2,366,637 Private common equity securities — — 4,362 4,362 Private preferred equity securities — — 56,769 56,769 Total equities 2,360,825 5,812 61,131 2,427,768 Asset-backed securities — 152,632 28,139 180,771 Bank debt — 22,566 — 22,566 Corporate bonds — 43,207 9,968 53,175 Municipal bonds — 40,432 — 40,432 U.S. Treasury securities — 236,600 — 236,600 Sovereign debt — 83,244 — 83,244 Other debt securities — 1,125 — 1,125 Total debt securities — 579,806 38,107 617,913 Options 962 8,443 — 9,405 Rights and warrants 214 1 424 639 Real estate — — 7,351 7,351 Trade claims — 3,068 — 3,068 Total other investments 1,176 11,512 7,775 20,463 Derivative assets (free standing) — 27,852 6,886 34,738 $ 2,362,001 $ 624,982 $ 113,899 3,100,882 Investments in funds valued at NAV 31,981 Total assets $ 3,132,863 Liabilities Equity securities $ 417,577 $ — $ — $ 417,577 Corporate bonds — 20,181 — 20,181 Options 1,396 4,062 — 5,458 Total securities sold, not yet purchased 418,973 24,243 — 443,216 Derivative liabilities (free standing) — 10,541 1,839 12,380 Derivative liabilities (embedded) — — 164 164 Total liabilities $ 418,973 $ 34,784 $ 2,003 $ 455,760 December 31, 2017 Quoted prices in active markets Significant other observable inputs Significant unobservable inputs Total (Level 1) (Level 2) (Level 3) Assets Equity securities $ 2,200,379 $ 20,751 $ — $ 2,221,130 Private common equity securities — — 4,794 4,794 Private preferred equity securities — — 57,126 57,126 Total equities 2,200,379 20,751 61,920 2,283,050 Asset-backed securities — 198,191 27,308 225,499 Bank debt — 14,550 — 14,550 Corporate bonds — 67,218 9,868 77,086 U.S. Treasury securities — 249,994 — 249,994 Sovereign debt — 102,569 — 102,569 Other debt securities — 4,747 713 5,460 Total debt securities — 637,269 37,889 675,158 Options 1,973 2,978 — 4,951 Rights and warrants — 168 435 603 Real estate — — 6,831 6,831 Trade claims — 7,496 — 7,496 Total other investments 1,973 10,642 7,266 19,881 Derivative assets (free standing) — 73,372 — 73,372 $ 2,202,352 $ 742,034 $ 107,075 3,051,461 Investments in funds valued at NAV 17,850 Total assets $ 3,069,311 Liabilities Equity securities $ 364,215 $ — $ — $ 364,215 Corporate bonds — 21,699 — 21,699 Options 2,668 5,696 — 8,364 Total securities sold, not yet purchased 366,883 27,395 — 394,278 Derivative liabilities (free standing) — 12,418 2,085 14,503 Derivative liabilities (embedded) — — 171 171 Total liabilities $ 366,883 $ 39,813 $ 2,256 $ 408,952 During the six months ended June 30, 2018 , the Company made $0.2m ( December 31, 2017 - $nil ) of reclassifications of assets or liabilities between Levels 1 and 2.
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 three and six months ended June 30, 2018 and 2017 : April 1, Transfers in to (out of) Level 3 Purchases Sales Realized and Unrealized Gains (Losses) (1) June 30, Assets Private common equity securities $ 4,352 $ — $ 21 $ — $ (11 ) $ 4,362 Private preferred equity securities 55,231 — 2,350 (977 ) 165 56,769 Asset-backed securities 27,256 3,622 18,350 (21,188 ) 99 28,139 Corporate bonds 10,081 — 512 (817 ) 192 9,968 Rights and warrants 819 (1 ) — (388 ) (6 ) 424 Real estate 6,937 — — — 414 7,351 Derivative assets (free standing) — 8,397 — 390 (1,901 ) 6,886 Total assets $ 104,676 $ 12,018 $ 21,233 $ (22,980 ) $ (1,048 ) $ 113,899 Liabilities Derivative liabilities (free standing) $ (1,996 ) $ 10 $ — $ — $ 147 $ (1,839 ) Derivative liabilities (embedded) (124 ) — — — (40 ) (164 ) Total liabilities $ (2,120 ) $ 10 $ — $ — $ 107 $ (2,003 ) January 1, Transfers in to (out of) Level 3 Purchases Sales Realized and Unrealized Gains (Losses) (1) June 30, Assets Private common equity securities $ 4,794 $ — $ 22 $ — $ (454 ) $ 4,362 Private preferred equity securities 57,126 — 2,509 (992 ) (1,874 ) 56,769 Asset-backed securities 27,308 6,104 30,610 (35,522 ) (361 ) 28,139 Corporate bonds 9,868 — 532 (817 ) 385 9,968 Other debt securities 713 — — (913 ) 200 — Rights and warrants 435 (1 ) 582 (593 ) 1 424 Real estate 6,831 — — (153 ) 673 7,351 Derivative assets (free standing) — 7,701 — 1,499 (2,314 ) 6,886 Total assets $ 107,075 $ 13,804 $ 34,255 $ (37,491 ) $ (3,744 ) $ 113,899 Liabilities Derivative liabilities (free standing) $ (2,085 ) $ 13 $ — $ — $ 233 $ (1,839 ) Derivative liabilities (embedded) (171 ) — — — 7 (164 ) Total liabilities $ (2,256 ) $ 13 $ — $ — $ 240 $ (2,003 ) April 1, Transfers in to (out of) Level 3 Purchases Sales Realized and Unrealized Gains (Losses) (1) June 30, Assets Private common equity securities $ 4,745 $ — $ — $ — $ 30 $ 4,775 Private preferred equity securities 48,350 — 939 (123 ) 1,593 50,759 Asset-backed securities 20,785 15,642 22,038 (20,545 ) (2,209 ) 35,711 Bank debt 8,722 (189 ) 3 (23 ) 1,733 10,246 Corporate bonds 8,984 — 92 (320 ) 339 9,095 Other debt securities — — 3,312 — — 3,312 Total assets $ 91,586 $ 15,453 $ 26,384 $ (21,011 ) $ 1,486 $ 113,898 Liabilities Derivative liabilities (free standing) $ (1,326 ) $ — $ — $ (41 ) $ — $ (1,367 ) Derivative liabilities (embedded) (111 ) — — — (69 ) (180 ) Total liabilities $ (1,437 ) $ — $ — $ (41 ) $ (69 ) $ (1,547 ) January 1, Transfers in to (out of) Level 3 Purchases Sales Realized and Unrealized Gains (Losses) (1) June 30, Assets Private common equity securities $ 4,799 $ — $ — $ — $ (24 ) $ 4,775 Private preferred equity securities 48,834 — 939 (495 ) 1,481 50,759 Asset-backed securities 17,628 20,016 31,958 (32,237 ) (1,654 ) 35,711 Bank debt 8,350 (446 ) 4 (272 ) 2,610 10,246 Corporate bonds 9,255 — 93 (587 ) 334 9,095 Other debt securities — — 3,312 — — 3,312 Total assets $ 88,866 $ 19,570 $ 36,306 $ (33,591 ) $ 2,747 $ 113,898 Liabilities Derivative liabilities (free standing) $ (1,326 ) $ — $ — $ (41 ) $ — $ (1,367 ) Derivative liabilities (embedded) (92 ) — — — (88 ) (180 ) Total liabilities $ (1,418 ) $ — $ — $ (41 ) $ (88 ) $ (1,547 ) (1) Total change in realized and unrealized gains (losses) recorded on Level 3 financial instruments is included in net investment income in the condensed consolidated statements of income (loss) .
Schedule of significant unobservable inputs used	The following table summarizes information about the significant unobservable inputs used in determining the fair value of the Level 3 investments held by the Company. Level 3 investments not presented in the table are insignificant or do not have any unobservable inputs to disclose, as they are valued primarily using dealer quotes or at cost. June 30, 2018 Assets Fair value Valuation technique Unobservable input Range Private equity investments $ 4,969 Market approach Volatility 40.0% - 45.0% Multiple 6.5 - 10.0x Real estate 7,054 Discounted cash flow Discount rate 9.5 % Capitalization rate 6.5 % Rights and warrants 424 Discounted cash flow Discount rate 15.5 % Time to exit 5.0 years Market approach Multiple 3.0 - 3.6x December 31, 2017 Assets Fair value Valuation technique Unobservable input Range Private equity investments $ 37,507 Market approach Volatility 35.0% - 65.0% Time to exit 0.5 - 1.8 years Multiple 7.8 - 24.4x Real estate 6,831 Discounted cash flow Discount rate 9.5 % Capitalization rate 6.5% - 10.0% Other debt securities 713 Discounted cash flow Capitalization rate 10.0 % Rights and warrants 433 Discounted cash flow Discount rate 13.5 % Time to exit 5.0 years Market approach Multiple 3.8 - 4.6x

Securities purchased under an33

Securities purchased under an agreement to sell, securities sold under an agreement to repurchase and securities lending transactions (Tables)	6 Months Ended
	Jun. 30, 2018
Securities Purchased under Agreements to Resell [Abstract]
Schedule of Repurchase Agreements	s of June 30, 2018 The following table presents the remaining contractual maturity of the repurchase agreements and securities lending transactions by class of collateral pledged December 31, 2017 : December 31, 2017 Overnights and continuous Up to 30 days 30 - 90 days Greater than 90 days Total Repurchase agreements Asset-backed securities $ — $ 10,774 $ 18,844 $ — $ 29,618

Due from_to brokers (Tables)

Due from/to brokers (Tables)	6 Months Ended
	Jun. 30, 2018
Due to and from Broker-Dealers and Clearing Organizations [Abstract]
Schedule of Due to (from) Brokers	As of June 30, 2018 and December 31, 2017 , the Company’s due from/to brokers were comprised of the following: June 30, December 31, Due from brokers Cash held at brokers $ 247,145 $ 295,467 Receivable from unsettled trades (1) 11,619 9,626 $ 258,764 $ 305,093 Due to brokers Borrowing from prime brokers $ 862,774 $ 759,267 Payable from unsettled trades 63,814 10,938 $ 926,588 $ 770,205 (1) Receivables relating to securities sold by the Company are recorded as receivable from unsettled trades in due from brokers in the Company’s condensed consolidated balance sheets.

Derivatives (Tables)

Derivatives (Tables)	6 Months Ended
	Jun. 30, 2018
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of listing currency, fair value and notional amounts of derivative instruments	The following tables identify the listing currency, fair value and notional amounts of derivative instruments included in the condensed consolidated balance sheets, categorized by primary underlying risk. Balances are presented on a gross basis. As of June 30, 2018 Listing currency (1) Fair Value Notional Amounts (2) Derivative Assets by Primary Underlying Risk Credit Credit Default Swaps - Protection Purchased EUR/USD $ 7,426 $ 72,960 Total Return Swaps - Long Contracts EGP 6,681 6,681 Equity Price Contracts for Differences - Long Contracts BRL/EUR/USD 9,641 104,549 Contracts for Differences - Short Contracts CHF/EUR/JPY 3,062 19,382 Interest Rates Interest Rate Swaptions JPY/USD 452 488,780 Foreign Currency Exchange Rates Foreign Currency Forward Contracts BRL/CHF/CNH/EUR/HKD/JPY 6,386 613,867 Foreign Currency Options - Purchased USD 1,090 69,438 Total Derivative Assets $ 34,738 $ 1,375,657 Listing currency (1) Fair Value Notional Amounts (2) Derivative Liabilities by Primary Underlying Risk Credit Credit Default Swaps - Protection Purchased USD $ 95 $ 17,004 Credit Default Swaps - Protection Sold USD 2,147 5,003 Equity Price Contracts for Differences - Long Contracts BRL/EUR/GBP 3,726 79,109 Contracts for Differences - Short Contracts CHF/EUR/GBP/JPY/SEK/USD 1,528 58,391 Interest Rates Interest Rate Swaptions JPY/USD 89 488,417 Sovereign Debt Futures - Short Contracts EUR 644 106,600 Total Return Swaps - Long Contracts ARS 3,277 19,175 Foreign Currency Exchange Rates Foreign Currency Forward Contracts ARS/HKD/SAR 347 221,008 Foreign Currency Options - Sold USD 527 107,312 Total Derivative Liabilities (free standing) $ 12,380 $ 1,102,019 Embedded derivative liabilities in reinsurance contracts (3) USD $ 164 $ 20,000 Total Derivative Liabilities (embedded) $ 164 $ 20,000 (1) ARS = Argentine peso, BRL = Brazilian Real, CHF = Swiss Franc, CNH = Chinese Yuan, EGP = Egyptian Pound, EUR = Euro, HKD = Hong Kong Dollar, GBP = British Pound, JPY = Japanese Yen, SAR = Saudi Arabian Riyal, SEK = Swedish Krona, USD = US Dollar. (2) The absolute notional exposure represents the Company’s derivative activity as of June 30, 2018 , which is representative of the volume of derivatives held during the period. (3) The fair value of embedded derivatives in reinsurance contracts is included in reinsurance balances payable in the condensed consolidated balance sheets. As of December 31, 2017 Listing currency (1) Fair Value Notional Amounts (2) Derivative Assets by Primary Underlying Risk Credit Credit Default Swaps - Protection Purchased USD $ 8,205 $ 50,593 Total Return Swaps - Long Contracts EGP 25,245 25,245 Equity Price Contracts for Differences - Long Contracts BRL / CHF / EUR / USD 17,298 163,868 Contracts for Differences - Short Contracts DKK / NOK / SEK / USD 4,384 31,992 Total Return Swaps - Long Contracts BRL / USD 15,936 96,388 Total Return Swaps - Short Contracts USD 1 — Interest Rates Interest Rate Swaptions JPY 539 64,950 Foreign Currency Exchange Rates Foreign Currency Forward Contracts HKD / JPY 1,764 511,937 Total Derivative Assets $ 73,372 $ 944,973 Listing currency (1) Fair Value Notional Amounts (2) Derivative Liabilities by Primary Underlying Risk Credit Credit Default Swaps - Protection Purchased USD $ 1,250 $ 19,418 Credit Default Swaps - Protection Sold USD 2,085 2,351 Equity Price Contracts for Differences - Long Contracts BRL / EUR / USD 2,200 93,200 Contracts for Differences - Short Contracts DKK / EUR / USD 776 8,483 Total Return Swaps - Long Contracts BRL / USD 73 50,858 Total Return Swaps - Short Contracts USD 1,885 52,657 Interest Rates Interest Rate Swaptions JPY 70 64,482 Foreign Currency Exchange Rates Foreign Currency Forward Contracts BRL / CHF / CNH / EUR / HKD / SAR 6,164 573,498 Total Derivative Liabilities (free standing) $ 14,503 $ 864,947 Embedded derivative liabilities in reinsurance contracts (3) USD $ 171 $ 20,000 Total Derivative Liabilities (embedded) $ 171 $ 20,000 (1) BRL = Brazilian Real, CHF = Swiss Franc, CNH = Chinese Yuan, DKK = Danish Krone, EGP = Egyptian Pound, EUR = Euro, HKD = Hong Kong Dollar, JPY = Japanese Yen, NOK = Norwegian Krone, SAR = Saudi Arabian Riyal, SEK = Swedish Krona, USD = US Dollar. (2) The absolute notional exposure represents the Company’s derivative activity as of December 31, 2017 , which is representative of the volume of derivatives held during the period. (3) The fair value of embedded derivatives in reinsurance contracts is included in reinsurance balances payable in the condensed 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 three and six months ended June 30, 2018 and 2017 . Realized and unrealized gains (losses) related to free standing derivatives are included in net investment income in the condensed consolidated statements of income (loss) . Realized and unrealized gains (losses) related to embedded derivatives are included in other expenses in the condensed consolidated statements of income (loss) . Three months ended June 30, 2018 June 30, 2017 Free standing Derivatives - Primary Underlying Risk Realized Gain (Loss) Unrealized Gain (Loss)* Realized Gain (Loss) Unrealized Gain (Loss)* Credit Credit Default Swaps - Protection Purchased $ 130 $ (2,581 ) $ (1,137 ) $ (1,590 ) Credit Default Swaps - Protection Sold (718 ) 1,053 18 (35 ) Total Return Swaps - Long Contracts 1,377 (1,981 ) (29 ) (37 ) Equity Price Contracts for Differences - Long Contracts 11,107 (606 ) 39,055 1,211 Contracts for Differences - Short Contracts 1,650 (1,994 ) (993 ) 1,821 Total Return Swaps - Long Contracts (1,632 ) (787 ) 61 3,545 Total Return Swaps - Short Contracts (9,517 ) 118 (1,014 ) 1,201 Interest Rates Interest Rate Swaps — — (4,550 ) (2,105 ) Interest Rate Swaptions — (180 ) (720 ) (573 ) Sovereign Future Options - Long Contracts 403 — — — Sovereign Future Options - Short Contracts 50 — — — Sovereign Futures - Long Contracts 639 — — — Sovereign Debt Futures - Short Contracts (560 ) (620 ) (6,874 ) (106 ) Total Return Swaps - Long Contracts — (3,277 ) — — Foreign Currency Exchange Rates Foreign Currency Forward Contracts 4,182 7,776 (4,161 ) (2,653 ) Foreign Currency Future Options - Purchased (108 ) — — — Foreign Currency Options - Purchased 4,571 1,045 (1,318 ) 661 Foreign Currency Options - Sold (485 ) (375 ) (1 ) — $ 11,089 $ (2,409 ) $ 18,337 $ 1,340 Embedded Derivatives Embedded derivatives in reinsurance contracts $ — $ (40 ) $ — $ (69 ) Total Derivative Liabilities (embedded) $ — $ (40 ) $ — $ (69 ) Six months ended June 30, 2018 June 30, 2017 Free standing Derivatives - Primary Underlying Risk Realized Gain (Loss) Unrealized Gain (Loss)* Realized Gain (Loss) Unrealized Gain (Loss)* Credit Credit Default Swaps - Protection Purchased $ (1,118 ) $ (2,022 ) $ (2,465 ) $ 30 Credit Default Swaps - Protection Sold 130 292 37 (59 ) Total Return Swaps - Long Contracts 1,819 (1,176 ) (29 ) (37 ) Equity Price Contracts for Differences - Long Contracts 25,307 (9,184 ) 46,925 6,687 Contracts for Differences - Short Contracts 5,710 (2,075 ) (4,205 ) 2,945 Total Return Swaps - Long Contracts 17,559 (15,864 ) 3,862 8,547 Total Return Swaps - Short Contracts (16,373 ) 1,883 (3,743 ) 788 Interest Rates Interest Rate Swaps — — (3,097 ) (1,740 ) Interest Rate Swaptions — (401 ) 522 (2,342 ) Sovereign Future Options - Long Contracts 403 — — — Sovereign Future Options - Short Contracts 50 — — — Sovereign Futures - Long Contracts 639 — — — Sovereign Debt Futures - Short Contracts (561 ) (644 ) (8,656 ) 658 Total Return Swaps - Long Contracts — (3,277 ) — — Foreign Currency Exchange Rates Foreign Currency Forward Contracts (9,634 ) 10,441 (10,035 ) (1,268 ) Foreign Currency Future Options - Purchased (108 ) — — — Foreign Currency Options - Purchased 4,571 469 (6,187 ) 1,163 Foreign Currency Options - Sold (485 ) (292 ) 2,184 (80 ) $ 27,909 $ (21,850 ) $ 15,113 $ 15,292 Embedded Derivatives Embedded derivatives in reinsurance contracts $ — $ 7 $ — $ (88 ) Total Derivative Liabilities (embedded) $ — $ 7 $ — $ (88 ) *Unrealized gain (loss) relates to derivatives still held at reporting date.
Schedule of gross and net amounts of derivative instruments that are subject to enforceable master netting arrangements or similar agreements	As of June 30, 2018 and December 31, 2017 , the gross and net amounts of derivative instruments and repurchase and reverse repurchase agreements that are subject to enforceable master netting arrangements or similar agreements were as follows: Gross Amounts not Offset in the Condensed Consolidated Balance Sheet June 30, 2018 Gross Amount (1) Financial Instruments Cash Collateral Received Net Amount Financial assets, derivative assets and collateral received Counterparty 1 $ 190 $ 190 $ — $ — Counterparty 2 1,197 1,197 — — Counterparty 3 17,207 4,303 — 12,904 Counterparty 4 2,926 2,889 — 37 Counterparty 5 6,477 1,345 40 5,092 Counterparty 6 3,713 33 1,314 2,366 Counterparty 7 1,059 — 850 209 Counterparty 8 8,233 1,222 — 7,011 Counterparty 9 2,180 2,180 — — $ 43,182 $ 13,359 $ 2,204 $ 27,619 Gross Amounts not Offset in the Condensed Consolidated Balance Sheet June 30, 2018 Gross Amount (2) Financial Instruments Cash Collateral Pledged Net Amount Financial liabilities, derivative liabilities and collateral pledged Counterparty 1 $ 539 $ 190 $ 349 $ — Counterparty 2 1,482 1,197 285 — Counterparty 3 4,303 4,303 — — Counterparty 4 3,000 2,889 111 — Counterparty 5 1,345 1,345 — — Counterparty 6 33 33 — — Counterparty 8 1,222 1,222 — — Counterparty 9 4,520 2,180 2,340 — $ 16,444 $ 13,359 $ 3,085 $ — Securities lending transactions Counterparty 5 $ 7,341 $ 7,341 $ — $ — $ 7,341 $ 7,341 $ — $ — (1) The gross amounts of assets presented in the condensed consolidated balance sheets presented above includes the fair value of derivative contract assets as well as gross OTC option contract assets of $8.5 million included in other investments in the condensed consolidated balance sheets. (2) The gross amounts of liabilities presented in the condensed consolidated balance sheets presented above includes the fair value of derivative contract liabilities as well as gross OTC option contract liabilities of $4.1 million included in securities sold, not yet purchased in the condensed consolidated balance sheets. Gross Amounts not Offset in the Condensed Consolidated Balance Sheet December 31, 2017 Derivative Contracts Gross Amount (1) Financial Instruments Cash Collateral Received Net Amount Financial assets, derivative assets and collateral received Counterparty 1 $ 167 $ 167 $ — $ — Counterparty 2 1,343 706 — 637 Counterparty 3 37,313 2,705 — 34,608 Counterparty 4 2,683 2,683 — — Counterparty 5 14,798 6,647 — 8,151 Counterparty 6 5,338 9 2,122 3,207 Counterparty 7 1,377 — 1,100 277 Counterparty 8 12,628 2,963 — 9,665 Counterparty 9 703 703 — — $ 76,350 $ 16,583 $ 3,222 $ 56,545 Gross Amounts not Offset in the Condensed Consolidated Balance Sheet December 31, 2017 Derivative Contracts Gross Amount (2) Financial Instruments Cash Collateral Pledged Net Amount Financial liabilities, derivative liabilities and collateral pledged Counterparty 1 $ 1,340 $ 167 $ 1,173 $ — Counterparty 2 706 706 — — Counterparty 3 2,705 2,705 — — Counterparty 4 3,812 2,683 1,129 — Counterparty 5 6,647 6,647 — — Counterparty 6 9 9 — — Counterparty 8 2,963 2,963 — — Counterparty 9 1,181 703 478 — Counterparty 15 836 — 732 104 $ 20,199 $ 16,583 $ 3,512 $ 104 Securities sold under an agreement to repurchase Counterparty 4 $ 29,618 $ 29,618 $ — $ — $ 29,618 $ 29,618 $ — $ — (1) The gross amounts of assets presented in the condensed consolidated balance sheets presented above includes the fair value of derivative contract assets as well as gross OTC option contract assets of $3.0 million included in other investments in the condensed consolidated balance sheets. (2) The gross amounts of liabilities presented in the condensed consolidated balance sheets presented above includes the fair value of derivative contract liabilities as well as gross OTC option contract liabilities of $5.7 million included in securities sold, not yet purchased in the condensed consolidated balance sheets.

Loss and loss adjustment expe36

Loss and loss adjustment expense reserves (Tables)	6 Months Ended
	Jun. 30, 2018
Insurance Loss Reserves [Abstract]
Schedule of loss and loss adjustment expense reserves	As of June 30, 2018 and December 31, 2017 , loss and loss adjustment expense reserves in the condensed consolidated balance sheets was comprised of the following: June 30, December 31, Case loss and loss adjustment expense reserves $ 116,957 $ 115,622 Incurred but not reported loss and loss adjustment expense reserves 673,840 604,260 Deferred gains on retroactive reinsurance contracts 516 688 $ 791,313 $ 720,570
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 six months ended June 30, 2018 and 2017 : June 30, June 30, Gross reserves for loss and loss adjustment expenses, beginning of period $ 720,570 $ 605,129 Less: loss and loss adjustment expenses recoverable, beginning of period (1,113 ) (1 ) Net reserves for loss and loss adjustment expenses, beginning of period 719,457 605,128 Increase (decrease) in net loss and loss adjustment expenses incurred in respect of losses occurring in: Current year 167,419 218,559 Prior years (1) 9,201 (25,285 ) Total incurred loss and loss adjustment expenses 176,620 193,274 Net loss and loss adjustment expenses paid in respect of losses occurring in: Current year (35,471 ) (19,737 ) Prior years (70,781 ) (111,480 ) Total net paid losses (106,252 ) (131,217 ) Foreign currency translation (3,912 ) 9,561 Net reserves for loss and loss adjustment expenses, end of period 785,913 676,746 Plus: loss and loss adjustment expenses recoverable, end of period 1,414 1,713 Plus: deferred charges on retroactive reinsurance contracts 3,986 — Gross reserves for loss and loss adjustment expenses, end of period $ 791,313 $ 678,459

Management, performance and f37

Management, performance and founders fees (Tables)	6 Months Ended
	Jun. 30, 2018
Management, Performance and Founders Fees [Abstract]
Schedule of investment fee expenses	For the three and six months ended June 30, 2018 and 2017 , management and performance fees to related parties are as follows: Three months ended Six months ended June 30, June 30, June 30, June 30, Management fees - Third Point LLC $ 9,635 $ 8,777 $ 19,410 $ 17,244 Performance fees - Third Point Advisors LLC 4,858 24,529 5,130 55,387 $ 14,493 $ 33,306 $ 24,540 $ 72,631

Deposit contracts (Tables)

Deposit contracts (Tables)	6 Months Ended
	Jun. 30, 2018
Deposit Contracts, Liabilities [Abstract]
Schedule of deposit contracts	The following table represents activity for the deposit contracts for the six months ended June 30, 2018 and year ended December 31, 2017 : June 30, December 31, Balance, beginning of period $ 129,133 $ 104,905 Consideration received 1,114 22,658 Consideration receivable — 2,080 Net investment expense allocation 2,449 2,800 Payments (2,893 ) (3,545 ) Foreign currency translation (103 ) 235 Balance, end of period $ 129,700 $ 129,133

Senior notes payable and lett39

Senior notes payable and letter of credit facilities (Tables)	6 Months Ended
	Jun. 30, 2018
Debt Disclosure [Abstract]
Schedule of credit facilities	As of June 30, 2018 , the Company had entered into the following letter of credit facilities: Facility Utilized Collateral Citibank $ 300,000 $ 158,312 $ 158,312 Lloyds Bank 125,000 82,233 82,233 $ 425,000 $ 240,545 $ 240,545

Net investment income (Tables)

Net investment income (Tables)	6 Months Ended
	Jun. 30, 2018
Net Investment Income [Abstract]
Schedule of net investment income	Net investment income for the three and six months ended June 30, 2018 and 2017 consisted of the following: Three months ended Six months ended June 30, June 30, June 30, June 30, Net investment income by type Net realized gains on investments and investment derivatives $ 64,731 $ 96,869 $ 130,500 $ 157,945 Net change in unrealized gains (losses) on investments and investment derivatives (32,532 ) 29,140 (95,520 ) 124,814 Net losses on foreign currencies (1,830 ) (1,601 ) (2,617 ) (2,153 ) Dividend and interest income 24,493 22,440 37,717 39,707 Dividends paid on securities sold, not yet purchased (2,329 ) (1,143 ) (4,221 ) (1,668 ) Other expenses (6,865 ) (5,074 ) (12,352 ) (10,179 ) Net investment income before management and performance fees to related parties 45,668 140,631 53,507 308,466 Management and performance fees to related parties (14,493 ) (33,306 ) (24,540 ) (72,631 ) Net investment income $ 31,175 $ 107,325 $ 28,967 $ 235,835 The following table provides an additional breakdown of our net investment income by asset and liability type for the three and six months ended June 30, 2018 and 2017 : Three months ended Six months ended June 30, 2018 June 30, 2017 June 30, 2018 June 30, 2017 Net investment income (loss) by asset type Equity securities $ 58,881 $ 111,622 $ 40,556 $ 261,891 Private common equity securities (11 ) 3 (453 ) (24 ) Private preferred equity securities 166 1,362 (1,874 ) 1,624 Total equities 59,036 112,987 38,229 263,491 Asset-backed securities 7,033 2,300 19,482 5,133 Bank debt 800 2,072 3,321 6,214 Corporate bonds (737 ) 2,335 (3,413 ) 11,250 Municipal bonds 2,470 — 6,248 — U.S. Treasury securities 478 1,205 (159 ) 2,365 Sovereign debt (8,533 ) 5,396 (4,402 ) 11,848 Other debt securities 31 — 469 — Total debt securities 1,542 13,308 21,546 36,810 Options (5,562 ) (10,383 ) (6,619 ) (17,848 ) Rights and warrants 63 (6 ) 47 38 Real estate 414 — 501 — Trade claims (284 ) 56 (287 ) 219 Total other investments (5,369 ) (10,333 ) (6,358 ) (17,591 ) Net investment income (loss) in funds valued at NAV 282 3,394 (625 ) 7,017 Total net investment income from invested assets 55,491 119,356 52,792 289,727 Net investment income (loss) by liability type Equity securities (23,844 ) (1,469 ) (10,926 ) (7,467 ) Sovereign debt — 2 — 2 Corporate bonds (1,934 ) (1,221 ) (1,969 ) (2,914 ) Options 9,174 6,056 12,907 4,363 Total net investment income (loss) from securities sold, not yet purchased (16,604 ) 3,368 12 (6,016 ) Other investment income (losses) and other expenses not presented above Other investment expenses (673 ) (2,098 ) (1,026 ) (4,012 ) Net investment income on derivative contracts 8,680 19,677 6,059 30,405 Net investment loss on cash, including foreign exchange loss (5,485 ) (3,057 ) (9,345 ) (5,993 ) Net investment losses on securities purchased under an agreement to sell and securities sold under an agreement to repurchase (32 ) (19 ) (241 ) (39 ) Withholding taxes reclassified to income tax expense 4,291 3,404 5,256 4,394 Total other investment income and other expenses 6,781 17,907 703 24,755 Net investment income before management and performance fees to related parties 45,668 140,631 53,507 308,466 Management and performance fees to related parties (14,493 ) (33,306 ) (24,540 ) (72,631 ) Net investment income $ 31,175 $ 107,325 $ 28,967 $ 235,835

Other expenses (Tables)

Other expenses (Tables)	6 Months Ended
	Jun. 30, 2018
Other Income and Expenses [Abstract]
Schedule of other expenses	Other expenses for the three and six months ended June 30, 2018 and 2017 consisted of the following: Three months ended Six months ended June 30, June 30, June 30, June 30, Investment expense (income) on deposit liabilities $ 1,188 $ (97 ) $ 2,449 $ 312 Investment expense and change in fair value of embedded derivatives in reinsurance contracts 2,795 2,202 5,529 4,694 $ 3,983 $ 2,105 $ 7,978 $ 5,006

Income taxes (Tables)

Income taxes (Tables)	6 Months Ended
	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Schedule of income tax expenses	For the three and six months ended June 30, 2018 and 2017 , the Company recorded income tax expense, as follows: Three months ended Six months ended June 30, June 30, June 30, June 30, Income tax expense (benefit) related to U.S. and U.K. subsidiaries $ 61 $ 1,844 $ (788 ) $ 6,027 Change in uncertain tax positions 38 59 50 184 Withholding taxes on certain investment transactions 4,291 3,404 5,256 4,394 $ 4,390 $ 5,307 $ 4,518 $ 10,605

Share capital (Tables)

Share capital (Tables)	6 Months Ended
	Jun. 30, 2018
Equity [Abstract]
Schedule of Common Stock and Treasury Stock Outstanding	The following tables present a summary of the common shares issued and outstanding and shares repurchased held as treasury shares as of and for the six months ended June 30, 2018 and 2017 : Common shares 2018 2017 Common shares issued, beginning of period 107,227,347 106,501,299 Options exercised — 100,000 Restricted shares granted, net of forfeitures 50,644 36,418 Performance restricted shares granted, net of forfeitures and shares withheld 257,045 694,886 Retirement of treasury shares and shares repurchased (1) (8,269,193 ) — Warrants exercised, net (2) 361,556 — Common shares issued, end of period 99,627,399 107,332,603 Treasury shares, end of period — (3,944,920 ) Common shares outstanding, end of period 99,627,399 103,387,683 (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 future shares repurchased will be retired. (2) During the six months ended June 30, 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.

Share-based compensation (Table

Share-based compensation (Tables)	6 Months Ended
	Jun. 30, 2018
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 three and six months ended June 30, 2018 and 2017 : Three months ended Six months ended June 30, June 30, June 30, June 30, Management and director options $ 60 $ 111 $ 155 $ 459 Restricted shares with service condition 139 154 279 278 Restricted shares with service and performance condition 1,114 1,279 2,124 2,637 $ 1,313 $ 1,544 $ 2,558 $ 3,374
Schedule of management and director options activity	The management and director options activity for the six months ended June 30, 2018 and year ended December 31, 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 June 30, 2018 8,888,053 $ 13.43
Schedule of management and director options outstanding	The following table summarizes information about the Company’s management and director share options outstanding as of June 30, 2018 : 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 5,123,532 $ 10.04 3.6 years 5,123,531 $ 10.04 $15.05 - $16.89 1,917,145 15.93 3.8 years 1,875,285 15.95 $20.00 - $25.05 1,847,376 20.26 3.7 years 1,819,471 20.22 8,888,053 $ 13.43 3.7 years 8,818,287 $ 13.40
Schedule of restricted shares with service condition activity	Restricted share award activity for the six months ended June 30, 2018 and year ended December 31, 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 (20,724 ) 12.53 Balance as of June 30, 2018 48,129 $ 13.35
Schedule of restricted shares with performance condition activity	Restricted share award activity for the restricted shares with a service and performance condition for the six months ended June 30, 2018 and year ended December 31, 2017 were as follows: Number of non- vested restricted shares Number of non- vested restricted shares probable of vesting Weighted average grant date fair value of shares probable of vesting 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 551,065 353,380 14.03 Forfeited (288,700 ) — 14.00 Vested (115,757 ) (115,757 ) 14.00 Change in estimated restricted shares considered probable of vesting n/a 29,509 12.39 Balance as of June 30, 2018 2,001,987 1,154,335 $ 12.65

Non-controlling interests Nonco

Non-controlling interests Noncontrolling interests (Tables)	6 Months Ended
	Jun. 30, 2018
Noncontrolling Interest [Abstract]
Minority Interest	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 six months ended June 30, 2018 and 2017 : Redeemable noncontrolling interests in related party Noncontrolling interests in related party Total noncontrolling interests in related party June 30, June 30, June 30, June 30, June 30, June 30, Balance, beginning of period $ 108,219 $ — $ 5,407 $ 35,674 $ 113,626 $ 35,674 Changes in capital account allocation (101,040 ) — (251 ) (15,865 ) (101,291 ) (15,865 ) Balance, end of period $ 7,179 $ — $ 5,156 $ 19,809 $ 12,335 $ 19,809 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 June 30, June 30, June 30, June 30, June 30, June 30, Balance, beginning of period $ 97,619 $ 30,358 $ 16,007 $ 5,316 $ 113,626 $ 35,674 Net income attributable to total noncontrolling interests in related party 137 1,764 82 437 219 2,201 Contributions (1) 476 1,818 14 115 490 1,933 Redemptions (89,000 ) (17,999 ) (13,000 ) (2,000 ) (102,000 ) (19,999 ) Balance, end of period $ 9,232 $ 15,941 $ 3,103 $ 3,868 $ 12,335 $ 19,809 (1) Contributions include performance fees earned during the period. See Note 9 for additional information.

Earnings (loss) per share ava46

Earnings (loss) per share available to Third Point Re common shareholders (Tables)	6 Months Ended
	Jun. 30, 2018
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 three and six months ended June 30, 2018 and 2017 : Three months ended Six months ended June 30, June 30, June 30, June 30, Weighted-average number of common shares outstanding: ($ in thousands, except share and per share amounts) Basic number of common shares outstanding 99,498,901 102,283,844 100,342,636 103,144,078 Dilutive effect of options 1,274,609 1,084,217 — 937,864 Dilutive effect of warrants 878,977 988,830 — 860,484 Dilutive effect of restricted shares with service and performance condition 379,998 212,335 — 207,284 Diluted number of common shares outstanding 102,032,485 104,569,226 100,342,636 105,149,710 Basic earnings (loss) per common share: Net income (loss) available to Third Point Re common shareholders $ 19,602 $ 74,578 $ (6,399 ) $ 178,764 Net income allocated to Third Point Re participating common shareholders (6 ) (71 ) — (204 ) Net income (loss) allocated to Third Point Re common shareholders $ 19,596 $ 74,507 $ (6,399 ) $ 178,560 Basic earnings (loss) per common share $ 0.20 $ 0.73 $ (0.06 ) $ 1.73 Diluted earnings (loss) per common share: Net income (loss) available to Third Point Re common shareholders $ 19,602 $ 74,578 $ (6,399 ) $ 178,764 Net income allocated to Third Point Re participating common shareholders (6 ) (69 ) — (200 ) Net income (loss) allocated to Third Point Re common shareholders $ 19,596 $ 74,509 $ (6,399 ) $ 178,564 Diluted earnings (loss) per common share $ 0.19 $ 0.71 $ (0.06 ) $ 1.70

Financial instruments with of47

Financial instruments with off-balance sheet risk or concentrations of credit risk (Tables)	6 Months Ended
	Jun. 30, 2018
Guarantees [Abstract]
Schedule of certain information related to the Company’s written credit derivatives	The following table sets forth certain information related to the Company’s written credit derivatives as of June 30, 2018 and December 31, 2017 : June 30, 2018 Maximum Payout/ Notional Amount Fair Value of Written Credit Derivatives (2) Credit Spreads on underlying (basis points) 0-5 years 5 years or Total Written (1) Asset Liability Net Asset/(Liability) Single name (0 - 250) $ 2,375 $ 2,628 $ 5,003 $ — $ 2,147 $ (2,147 ) December 31, 2017 Maximum Payout/ Notional Amount Fair Value of Written Credit Derivatives (2) Credit Spreads on underlying (basis points) 0-5 years 5 years or Total Written (1) Asset Liability Net Asset/(Liability) Single name (0 - 250) $ — $ 2,351 $ 2,351 $ — $ 2,085 $ (2,085 ) (1) As of June 30, 2018 and December 31, 2017 , the Company did not hold any offsetting buy protection credit derivatives with the same underlying reference obligation. (2) Fair value amounts of derivative contracts are shown on a gross basis prior to cash collateral or counterparty netting.

Segment reporting (Tables)

Segment reporting (Tables)	6 Months Ended
	Jun. 30, 2018
Segment Reporting [Abstract]
Schedule of operating segments	The following is a summary of the Company’s operating segment results for the three and six months ended June 30, 2018 and 2017 : Three months ended June 30, 2018 Property and Casualty Reinsurance Corporate Total Revenues Gross premiums written $ 49,765 $ — $ 49,765 Gross premiums ceded (3,479 ) — (3,479 ) Net premiums written 46,286 — 46,286 Change in net unearned premium reserves 95,207 — 95,207 Net premiums earned 141,493 — 141,493 Expenses Loss and loss adjustment expenses incurred, net 84,000 — 84,000 Acquisition costs, net 57,584 — 57,584 General and administrative expenses 4,963 4,733 9,696 Total expenses 146,547 4,733 151,280 Net underwriting loss (5,054 ) n/a n/a Net investment income 4,922 26,253 31,175 Other expenses (3,983 ) — (3,983 ) Interest expense — (2,051 ) (2,051 ) Foreign exchange gains (1) 8,847 — 8,847 Income tax expense — (4,390 ) (4,390 ) Net income attributable to noncontrolling interests in related party — (209 ) (209 ) Segment income $ 4,732 $ 14,870 Net loss attributable to Third Point Re common shareholders $ 19,602 Property and Casualty Reinsurance - Underwriting Ratios (2): Loss ratio 59.4 % Acquisition cost ratio 40.7 % Composite ratio 100.1 % General and administrative expense ratio 3.5 % Combined ratio 103.6 % (1) Foreign exchange gains (losses) primarily result from the revaluation of foreign currency loss and loss adjustment expense reserves denominated in non-U.S. dollar. Non-U.S. dollar reinsurance assets, or balances held in trust accounts securing reinsurance liabilities generally offset reinsurance liabilities in the same non-U.S. dollar currencies resulting in minimal net exposure. As a result, the foreign exchange gains (losses) on loss and loss adjustment expense reserves in the period are offset by corresponding foreign exchange gains (losses) included in net investment income resulting from the revaluation of foreign currency reinsurance collateral held in trust accounts, which is presented as part of the Property and Casualty segment. In the three months ended March 31, 2018, the Company modified the presentation of its operating segment to allocate foreign exchange gains (losses) to the Property and Casualty Reinsurance Segment to better align with the reinsurance activities that result in these foreign exchange gains and losses. These amounts had previously been presented as part of the Company’s corporate function. Prior period segment results have been adjusted to conform to this presentation. (2) Underwriting ratios are calculated by dividing the related expense by net premiums earned. Six months ended June 30, 2018 Property and Casualty Reinsurance Corporate Total Revenues Gross premiums written $ 428,125 $ — $ 428,125 Gross premiums ceded (18,125 ) — (18,125 ) Net premiums written 410,000 — 410,000 Change in net unearned premium reserves (126,021 ) — (126,021 ) Net premiums earned 283,979 — 283,979 Expenses Loss and loss adjustment expenses incurred, net 176,620 — 176,620 Acquisition costs, net 108,989 — 108,989 General and administrative expenses 9,787 9,390 19,177 Total expenses 295,396 9,390 304,786 Net underwriting loss (11,417 ) n/a n/a Net investment income 7,521 21,446 28,967 Other expenses (7,978 ) — (7,978 ) Interest expense — (4,080 ) (4,080 ) Foreign exchange gains (1) 2,236 — 2,236 Income tax expense — (4,518 ) (4,518 ) Net income attributable to noncontrolling interests in related party — (219 ) (219 ) Segment income (loss) $ (9,638 ) $ 3,239 Net loss attributable to Third Point Re common shareholders $ (6,399 ) Property and Casualty Reinsurance - Underwriting Ratios (2): Loss ratio 62.2 % Acquisition cost ratio 38.4 % Composite ratio 100.6 % General and administrative expense ratio 3.4 % Combined ratio 104.0 % (1) Foreign exchange gains (losses) primarily result from the revaluation of foreign currency loss and loss adjustment expense reserves denominated in non-U.S. dollar. Non-U.S. dollar reinsurance assets, or balances held in trust accounts securing reinsurance liabilities generally offset reinsurance liabilities in the same non-U.S. dollar currencies resulting in minimal net exposure. As a result, the foreign exchange gains (losses) on loss and loss adjustment expense reserves in the period are offset by corresponding foreign exchange gains (losses) included in net investment income resulting from the revaluation of foreign currency reinsurance collateral held in trust accounts, which is presented as part of the Property and Casualty segment. In the three months ended March 31, 2018, the Company modified the presentation of its operating segment to allocate foreign exchange gains (losses) to the Property and Casualty Reinsurance Segment to better align with the reinsurance activities that result in these foreign exchange gains and losses. These amounts had previously been presented as part of the Company’s corporate function. Prior period segment results have been adjusted to conform to this presentation. (2) Underwriting ratios are calculated by dividing the related expense by net premiums earned. Three months ended June 30, 2017 Property and Casualty Reinsurance Corporate Total Revenues Gross premiums written $ 156,564 $ — $ 156,564 Gross premiums ceded (1,425 ) — (1,425 ) Net premiums written 155,139 — 155,139 Change in net unearned premium reserves 18,419 — 18,419 Net premiums earned 173,558 — 173,558 Expenses Loss and loss adjustment expenses incurred, net 107,379 — 107,379 Acquisition costs, net 68,641 — 68,641 General and administrative expenses 9,649 5,365 15,014 Total expenses 185,669 5,365 191,034 Net underwriting loss (12,111 ) n/a n/a Net investment income 31,206 76,119 107,325 Other expenses (2,105 ) — (2,105 ) Interest expense — (2,051 ) (2,051 ) Foreign exchange losses (1) (4,781 ) — (4,781 ) Income tax expense — (5,307 ) (5,307 ) Net income attributable to noncontrolling interests in related party — (1,027 ) (1,027 ) Segment income $ 12,209 $ 62,369 Net income available to Third Point Re common shareholders $ 74,578 Property and Casualty Reinsurance - Underwriting Ratios (2): Loss ratio 61.9 % Acquisition cost ratio 39.5 % Composite ratio 101.4 % General and administrative expense ratio 5.6 % Combined ratio 107.0 % (1) Foreign exchange gains (losses) primarily result from the revaluation of foreign currency loss and loss adjustment expense reserves denominated in non-U.S. dollar. Non-U.S. dollar reinsurance assets, or balances held in trust accounts securing reinsurance liabilities generally offset reinsurance liabilities in the same non-U.S. dollar currencies resulting in minimal net exposure. As a result, the foreign exchange gains (losses) on loss and loss adjustment expense reserves in the period are offset by corresponding foreign exchange gains (losses) included in net investment income resulting from the revaluation of foreign currency reinsurance collateral held in trust accounts, which is presented as part of the Property and Casualty segment. In the three months ended March 31, 2018, the Company modified the presentation of its operating segment to allocate foreign exchange gains (losses) to the Property and Casualty Reinsurance Segment to better align with the reinsurance activities that result in these foreign exchange gains and losses. These amounts had previously been presented as part of the Company’s corporate function. Prior period segment results have been adjusted to conform to this presentation. (2) Underwriting ratios are calculated by dividing the related expense by net premiums earned. Six months ended June 30, 2017 Property and Casualty Reinsurance Corporate Total Revenues Gross premiums written $ 302,918 $ — $ 302,918 Gross premiums ceded (2,550 ) — (2,550 ) Net premiums written 300,368 — 300,368 Change in net unearned premium reserves 11,199 — 11,199 Net premiums earned 311,567 — 311,567 Expenses Loss and loss adjustment expenses incurred, net 193,274 — 193,274 Acquisition costs, net 123,093 — 123,093 General and administrative expenses 15,961 9,625 25,586 Total expenses 332,328 9,625 341,953 Net underwriting loss (20,761 ) n/a n/a Net investment income 67,326 168,509 235,835 Other expenses (5,006 ) — (5,006 ) Interest expense — (4,077 ) (4,077 ) Foreign exchange losses (1) (4,796 ) — (4,796 ) Income tax expense — (10,605 ) (10,605 ) Net income attributable to noncontrolling interests in related party — (2,201 ) (2,201 ) Segment income $ 36,763 $ 142,001 Net income available to Third Point Re common shareholders $ 178,764 Property and Casualty Reinsurance - Underwriting Ratios (2): Loss ratio 62.0 % Acquisition cost ratio 39.5 % Composite ratio 101.5 % General and administrative expense ratio 5.1 % Combined ratio 106.6 % (1) Foreign exchange gains (losses) primarily result from the revaluation of foreign currency loss and loss adjustment expense reserves denominated in non-U.S. dollar. Non-U.S. dollar reinsurance assets, or balances held in trust accounts securing reinsurance liabilities generally offset reinsurance liabilities in the same non-U.S. dollar currencies resulting in minimal net exposure. As a result, the foreign exchange gains (losses) on loss and loss adjustment expense reserves in the period are offset by corresponding foreign exchange gains (losses) included in net investment income resulting from the revaluation of foreign currency reinsurance collateral held in trust accounts, which is presented as part of the Property and Casualty segment. In the three months ended March 31, 2018, the Company modified the presentation of its operating segment to allocate foreign exchange gains (losses) to the Property and Casualty Reinsurance Segment to better align with the reinsurance activities that result in these foreign exchange gains and losses. These amounts had previously been presented as part of the Company’s corporate function. Prior period segment results have been adjusted to conform to this presentation. (2) 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 three and six months ended June 30, 2018 and 2017 as a percentage of total gross premiums written in the relevant period: Three months ended Six months ended June 30, 2018 June 30, 2017 June 30, 2018 June 30, 2017 Largest contract 32.8 % 65.9 % 21.4 % 34.0 % Second largest contract 15.4 % 12.9 % n/a 17.9 % Third largest contract 13.8 % n/a n/a n/a Total for contracts contributing greater than 10% each 62.0 % 78.8 % 21.4 % 51.9 % Total for contracts contributing less than 10% each 38.0 % 21.2 % 78.6 % 48.1 % 100.0 % 100.0 % 100.0 % 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 three and six months ended June 30, 2018 and 2017 : Three months ended Six months ended June 30, 2018 June 30, 2017 June 30, 2018 June 30, 2017 Property $ 1,660 3.3 % $ (8,827 ) (5.6 )% $ 2,029 0.5 % $ (8,815 ) (2.9 )% Casualty 43,510 87.4 % 15,008 9.6 % 196,730 46.0 % 102,213 33.7 % Specialty 254 0.6 % 41,032 26.2 % 225,025 52.5 % 100,169 33.1 % Total prospective reinsurance contracts 45,424 91.3 % 47,213 30.2 % 423,784 99.0 % 193,567 63.9 % Retroactive reinsurance contracts 4,341 8.7 % 109,351 69.8 % 4,341 1.0 % 109,351 36.1 % $ 49,765 100.0 % $ 156,564 100.0 % $ 428,125 100.0 % $ 302,918 100.0 %
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 three and six months ended June 30, 2018 and 2017 : Three months ended Six months ended June 30, 2018 June 30, 2017 June 30, 2018 June 30, 2017 Largest broker $ 19,858 39.9 % $ 107,612 68.7 % $ 165,582 38.7 % $ 107,612 35.5 % Second largest broker n/a n/a 22,448 14.3 % 159,413 37.2 % 73,499 24.3 % Third largest broker n/a n/a n/a n/a 52,982 12.4 % 35,269 11.6 % Fourth largest broker n/a n/a n/a n/a n/a n/a 31,853 10.5 % Other 29,907 60.1 % 26,504 17.0 % 50,148 11.7 % 54,685 18.1 % $ 49,765 100.0 % $ 156,564 100.0 % $ 428,125 100.0 % $ 302,918 100.0 %
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 three and six months ended June 30, 2018 and 2017 : Three months ended Six months ended June 30, 2018 June 30, 2017 June 30, 2018 June 30, 2017 United States $ 31,400 63.1 % $ 1,340 0.8 % $ 264,271 61.7 % $ 43,769 14.4 % Bermuda 3,357 6.7 % — — % 73,710 17.2 % 54,075 17.9 % United Kingdom 15,008 30.2 % 150,744 96.3 % 66,993 15.7 % 200,594 66.2 % Other — — % 4,480 2.9 % 23,151 5.4 % 4,480 1.5 % $ 49,765 100.0 % $ 156,564 100.0 % $ 428,125 100.0 % $ 302,918 100.0 %

Supplemental Guarantor Inform49

Supplemental Guarantor Information (Tables)	6 Months Ended
	Jun. 30, 2018
Condensed Financial Information of Parent Company Only Disclosure [Abstract]
Condensed Consolidating Balance Sheet	CONDENSED CONSOLIDATING BALANCE SHEET As of June 30, 2018 Third Point Re TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Assets Equity securities $ — $ — $ 2,427,768 $ — $ 2,427,768 Debt securities — — 617,913 — 617,913 Other investments — — 52,444 — 52,444 Total investments in securities — — 3,098,125 — 3,098,125 Cash and cash equivalents 1 190 17,260 — 17,451 Restricted cash and cash equivalents — — 569,968 — 569,968 Investment in subsidiaries 1,630,308 271,249 165,315 (2,066,872 ) — Due from brokers — — 258,764 — 258,764 Derivative assets, at fair value — — 34,738 — 34,738 Interest and dividends receivable — — 4,385 — 4,385 Reinsurance balances receivable — — 631,952 — 631,952 Deferred acquisition costs, net — — 264,408 — 264,408 Unearned premiums ceded — — 17,606 — 17,606 Loss and loss adjustment expenses recoverable — — 1,414 — 1,414 Amounts due from (to) affiliates (37,588 ) 77 37,511 — — Other assets 254 — 10,554 — 10,808 Total assets $ 1,592,975 $ 271,516 $ 5,112,000 $ (2,066,872 ) $ 4,909,619 Liabilities Accounts payable and accrued expenses (1) $ 1,221 $ (9,663 ) $ 20,486 $ — $ 12,044 Reinsurance balances payable — — 74,013 — 74,013 Deposit liabilities — — 129,700 — 129,700 Unearned premium reserves — — 792,096 — 792,096 Loss and loss adjustment expense reserves — — 791,313 — 791,313 Securities sold, not yet purchased, at fair value — — 443,216 — 443,216 Due to brokers — — 926,588 — 926,588 Derivative liabilities, at fair value — — 12,380 — 12,380 Performance fee payable to related party — — 4,641 — 4,641 Interest and dividends payable — 3,022 2,696 — 5,718 Senior notes payable, net of deferred costs — 113,821 — — 113,821 Total liabilities 1,221 107,180 3,197,129 — 3,305,530 Redeemable noncontrolling interests in related party — — 7,179 — 7,179 Shareholders’ equity Common shares 9,963 — 1,239 (1,239 ) 9,963 Additional paid-in capital 994,170 165,535 1,534,496 (1,700,031 ) 994,170 Retained earnings (deficit) 587,621 (1,199 ) 366,801 (365,602 ) 587,621 Shareholders’ equity attributable to Third Point Re common shareholders 1,591,754 164,336 1,902,536 (2,066,872 ) 1,591,754 Noncontrolling interests in related party — — 5,156 — 5,156 Total shareholders’ equity 1,591,754 164,336 1,907,692 (2,066,872 ) 1,596,910 Total liabilities, noncontrolling interests and shareholders’ equity $ 1,592,975 $ 271,516 $ 5,112,000 $ (2,066,872 ) $ 4,909,619 (1) Negative balance of $9.7 million represents net deferred tax assets that are offset by net deferred tax liabilities in Third Point Re USA of $10.0 million , resulting in a net liability position as of June 30, 2018 . CONDENSED CONSOLIDATING BALANCE SHEET As of December 31, 2017 Third TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Assets Equity securities $ — $ — $ 2,283,050 $ — $ 2,283,050 Debt securities — — 675,158 — 675,158 Other investments — — 37,731 — 37,731 Total investments in securities — — 2,995,939 — 2,995,939 Cash and cash equivalents 9 199 7,989 — 8,197 Restricted cash and cash equivalents — — 541,136 — 541,136 Investment in subsidiaries 1,657,467 274,272 164,909 (2,096,648 ) — Due from brokers — — 305,093 — 305,093 Derivative assets, at fair value — — 73,372 — 73,372 Interest and dividends receivable — — 3,774 — 3,774 Reinsurance balances receivable — — 476,008 — 476,008 Deferred acquisition costs, net — — 258,793 — 258,793 Unearned premiums ceded — — 1,049 — 1,049 Loss and loss adjustment expenses recoverable — — 1,113 — 1,113 Amounts due from (to) affiliates (1,288 ) 412 876 — — Other assets 664 — 6,656 — 7,320 Total assets $ 1,656,852 $ 274,883 $ 4,836,707 $ (2,096,648 ) $ 4,671,794 Liabilities Accounts payable and accrued expenses (1) $ 763 $ (8,805 ) $ 42,674 $ — $ 34,632 Reinsurance balances payable — — 41,614 — 41,614 Deposit liabilities — — 129,133 — 129,133 Unearned premium reserves — — 649,518 — 649,518 Loss and loss adjustment expense reserves — — 720,570 — 720,570 Securities sold, not yet purchased, at fair value — — 394,278 — 394,278 Securities sold under an agreement to repurchase — — 29,618 — 29,618 Due to brokers — — 770,205 — 770,205 Derivative liabilities, at fair value — — 14,503 — 14,503 Interest and dividends payable — 3,055 1,220 — 4,275 Senior notes payable, net of deferred costs — 113,733 — — 113,733 Total liabilities 763 107,983 2,793,333 — 2,902,079 Redeemable noncontrolling interests in related party — — 108,219 — 108,219 Shareholders’ equity Common shares 10,723 — 1,250 (1,250 ) 10,723 Treasury shares (48,253 ) — — — (48,253 ) Additional paid-in capital 1,099,599 165,097 1,531,770 (1,696,867 ) 1,099,599 Retained earnings (deficit) 594,020 1,803 396,728 (398,531 ) 594,020 Shareholders' equity attributable to Third Point Re common shareholders 1,656,089 166,900 1,929,748 (2,096,648 ) 1,656,089 Noncontrolling interests in related party — — 5,407 — 5,407 Total shareholders' equity 1,656,089 166,900 1,935,155 (2,096,648 ) 1,661,496 Total liabilities, noncontrolling interests and shareholders’ equity $ 1,656,852 $ 274,883 $ 4,836,707 $ (2,096,648 ) $ 4,671,794 (1) Negative balance of $8.8 million represents net deferred tax assets that are offset by net deferred tax liabilities in Third Point Re USA of $9.9 million , resulting in a net liability position as of December 31, 2017.
Condensed Consolidating Statement of Income	CONDENSED CONSOLIDATING STATEMENTS OF INCOME (LOSS) For the three months ended June 30, 2018 Third TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Revenues Gross premiums written $ — $ — $ 49,765 $ — $ 49,765 Gross premiums ceded — — (3,479 ) — (3,479 ) Net premiums written — — 46,286 — 46,286 Change in net unearned premium reserves — — 95,207 — 95,207 Net premiums earned — — 141,493 — 141,493 Net investment income — — 31,175 — 31,175 Equity in earnings (losses) of subsidiaries 21,319 1,847 (13 ) (23,153 ) — Total revenues 21,319 1,847 172,655 (23,153 ) 172,668 Expenses Loss and loss adjustment expenses incurred, net — — 84,000 — 84,000 Acquisition costs, net — — 57,584 — 57,584 General and administrative expenses 1,717 19 7,960 — 9,696 Other expenses — — 3,983 — 3,983 Interest expense — 2,051 — — 2,051 Foreign exchange gains — — (8,847 ) — (8,847 ) Total expenses 1,717 2,070 144,680 — 148,467 Income (loss) before income tax (expense) benefit 19,602 (223 ) 27,975 (23,153 ) 24,201 Income tax (expense) benefit — 435 (4,825 ) — (4,390 ) Net income 19,602 212 23,150 (23,153 ) 19,811 Net income attributable to noncontrolling interests in related party — — (209 ) — (209 ) Net income available to Third Point Re common shareholders $ 19,602 $ 212 $ 22,941 $ (23,153 ) $ 19,602 For the six months ended June 30, 2018 Third TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Revenues Gross premiums written $ — $ — $ 428,125 $ — $ 428,125 Gross premiums ceded — — (18,125 ) — (18,125 ) Net premiums written — — 410,000 — 410,000 Change in net unearned premium reserves — — (126,021 ) — (126,021 ) Net premiums earned — — 283,979 — 283,979 Net investment income — — 28,967 — 28,967 Equity in earnings (losses) of subsidiaries (3,038 ) 239 (30 ) 2,829 — Total revenues (3,038 ) 239 312,916 2,829 312,946 Expenses Loss and loss adjustment expenses incurred, net — — 176,620 — 176,620 Acquisition costs, net — — 108,989 — 108,989 General and administrative expenses 3,361 22 15,794 — 19,177 Other expenses — — 7,978 — 7,978 Interest expense — 4,080 — — 4,080 Foreign exchange gains — — (2,236 ) — (2,236 ) Total expenses 3,361 4,102 307,145 — 314,608 Income (loss) before income tax (expense) benefit (6,399 ) (3,863 ) 5,771 2,829 (1,662 ) Income tax (expense) benefit — 861 (5,379 ) — (4,518 ) Net income (loss) (6,399 ) (3,002 ) 392 2,829 (6,180 ) Net income attributable to noncontrolling interests in related party — — (219 ) — (219 ) Net income (loss) available (attributable) to Third Point Re common shareholders $ (6,399 ) $ (3,002 ) $ 173 $ 2,829 $ (6,399 ) CONDENSED CONSOLIDATING STATEMENTS OF INCOME For the three months ended June 30, 2017 Third TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Revenues Gross premiums written $ — $ — $ 156,564 $ — $ 156,564 Gross premiums ceded — — (1,425 ) — (1,425 ) Net premiums written — — 155,139 — 155,139 Change in net unearned premium reserves — — 18,419 — 18,419 Net premiums earned — — 173,558 — 173,558 Net investment income — — 107,325 — 107,325 Equity in earnings (losses) of subsidiaries 75,843 4,843 (10 ) (80,676 ) — Total revenues 75,843 4,843 280,873 (80,676 ) 280,883 Expenses Loss and loss adjustment expenses incurred, net — — 107,379 — 107,379 Acquisition costs, net — — 68,641 — 68,641 General and administrative expenses 1,265 12 13,737 — 15,014 Other expenses — — 2,105 — 2,105 Interest expense — 2,051 — — 2,051 Foreign exchange losses — — 4,781 — 4,781 Total expenses 1,265 2,063 196,643 — 199,971 Income before income tax (expense) benefit 74,578 2,780 84,230 (80,676 ) 80,912 Income tax (expense) benefit — 722 (6,029 ) — (5,307 ) Net income 74,578 3,502 78,201 (80,676 ) 75,605 Net income attributable to noncontrolling interests in related party — — (1,027 ) — (1,027 ) Net income available to Third Point Re common shareholders $ 74,578 $ 3,502 $ 77,174 $ (80,676 ) $ 74,578 For the six months ended June 30, 2017 Third TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Revenues Gross premiums written $ — $ — $ 302,918 $ — $ 302,918 Gross premiums ceded — — (2,550 ) — (2,550 ) Net premiums written — — 300,368 — 300,368 Change in net unearned premium reserves — — 11,199 — 11,199 Net premiums earned — — 311,567 — 311,567 Net investment income — — 235,835 — 235,835 Equity in earnings (losses) of subsidiaries 181,213 13,832 (5 ) (195,040 ) — Total revenues 181,213 13,832 547,397 (195,040 ) 547,402 Expenses Loss and loss adjustment expenses incurred, net — — 193,274 — 193,274 Acquisition costs, net — — 123,093 — 123,093 General and administrative expenses 2,449 20 23,117 — 25,586 Other expenses — — 5,006 — 5,006 Interest expense — 4,077 — — 4,077 Foreign exchange losses — — 4,796 — 4,796 Total expenses 2,449 4,097 349,286 — 355,832 Income before income tax (expense) benefit 178,764 9,735 198,111 (195,040 ) 191,570 Income tax (expense) benefit — 1,434 (12,039 ) — (10,605 ) Net income 178,764 11,169 186,072 (195,040 ) 180,965 Net income attributable to noncontrolling interests in related party — — (2,201 ) — (2,201 ) Net income available to Third Point Re common shareholders $ 178,764 $ 11,169 $ 183,871 $ (195,040 ) $ 178,764
Condensed Consolidating Statement of Cash Flows	CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS For the six months ended June 30, 2018 Third TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Operating activities Net income (loss) $ (6,399 ) $ (3,002 ) $ 392 $ 2,829 $ (6,180 ) Adjustments to reconcile net loss to net cash provided by (used in) operating activities: Equity in (earnings) losses of subsidiaries 3,038 (239 ) 30 (2,829 ) — Share compensation expense 279 — 2,279 — 2,558 Net interest expense on deposit liabilities — — 2,449 — 2,449 Net unrealized loss on investments and derivatives — — 95,513 — 95,513 Net realized gain on investments and derivatives — — (130,500 ) — (130,500 ) Net foreign exchange gains — — (2,236 ) — (2,236 ) Amortization of premium and accretion of discount, net — 88 2,825 — 2,913 Changes in assets and liabilities: Reinsurance balances receivable — — (157,498 ) — (157,498 ) Deferred acquisition costs, net — — (5,615 ) — (5,615 ) Unearned premiums ceded — — (16,557 ) — (16,557 ) Loss and loss adjustment expenses recoverable — — (301 ) — (301 ) Other assets 410 — (3,947 ) — (3,537 ) Interest and dividends receivable, net — (33 ) 865 — 832 Unearned premium reserves — — 142,578 — 142,578 Loss and loss adjustment expense reserves — — 74,655 — 74,655 Accounts payable and accrued expenses 458 (858 ) (22,164 ) — (22,564 ) Reinsurance balances payable — — 32,208 — 32,208 Performance fees payable to related party — — 4,641 — 4,641 Amounts due from (to) affiliates 36,300 335 (36,635 ) — — Net cash provided by (used in) operating activities 34,086 (3,709 ) (17,018 ) — 13,359 Investing activities Purchases of investments — — (2,180,138 ) — (2,180,138 ) Proceeds from sales of investments — — 2,156,754 — 2,156,754 Purchases of investments to cover short sales — — (590,113 ) — (590,113 ) Proceeds from short sales of investments — — 628,913 — 628,913 Change in due to/from brokers, net — — 202,712 — 202,712 Decrease in securities sold under an agreement to repurchase — — (29,618 ) — (29,618 ) Net cash provided by investing activities — — 188,510 — 188,510 Financing activities Proceeds from issuance of Third Point Re common shares, net of costs — — — — — Taxes paid on withholding shares (74 ) — — — (74 ) Purchases of Third Point Re common shares under share repurchase program (60,420 ) — — — (60,420 ) Decrease in deposit liabilities, net — — (1,779 ) — (1,779 ) Change in total noncontrolling interests in related party, net — — (101,510 ) — (101,510 ) Dividend received by (paid to) parent 26,400 3,700 (30,100 ) — — Net cash provided by (used in) financing activities (34,094 ) 3,700 (133,389 ) — (163,783 ) Net increase (decrease) in cash, cash equivalents and restricted cash (8 ) (9 ) 38,103 — 38,086 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 $ 1 $ 190 $ 587,228 $ — $ 587,419 CONDENSED CONSOLIDATING STATEMENT OF CASH FLOWS For the six months ended June 30, 2017 Third TPRUSA Non-Guarantor Subsidiaries Eliminations Consolidated Operating activities Net income $ 178,764 $ 11,169 $ 186,072 $ (195,040 ) $ 180,965 Adjustments to reconcile net income to net cash provided by (used in) operating activities: Equity in (earnings) losses of subsidiaries (181,213 ) (13,832 ) 5 195,040 — Share compensation expense 73 — 3,301 — 3,374 Net interest expense on deposit liabilities — — 312 — 312 Net unrealized gain on investments and derivatives — — (128,168 ) — (128,168 ) Net realized gain on investments and derivatives — — (154,504 ) — (154,504 ) Net foreign exchange losses — — 4,796 — 4,796 Amortization of premium and accretion of discount, net — 88 (210 ) — (122 ) Changes in assets and liabilities: Reinsurance balances receivable — — (85,733 ) — (85,733 ) Deferred acquisition costs, net — — 18,425 — 18,425 Unearned premiums ceded — — (1,938 ) — (1,938 ) Loss and loss adjustment expenses recoverable — — (1,712 ) — (1,712 ) Other assets 302 (1,663 ) 7,519 — 6,158 Interest and dividends receivable, net — (35 ) 2,988 — 2,953 Unearned premium reserves — — (9,261 ) — (9,261 ) Loss and loss adjustment expense reserves — — 63,769 — 63,769 Accounts payable and accrued expenses 67 — 7,482 — 7,549 Reinsurance balances payable — — 22,237 — 22,237 Performance fees payable to related party — — 53,455 — 53,455 Amounts due from (to) affiliates 40,523 (3,831 ) (36,692 ) — — Net cash provided by (used in) operating activities 38,516 (8,104 ) (47,857 ) — (17,445 ) Investing activities Purchases of investments — — (1,712,929 ) — (1,712,929 ) Proceeds from sales of investments — — 1,966,027 — 1,966,027 Purchases of investments to cover short sales — — (306,237 ) — (306,237 ) Proceeds from short sales of investments — — 462,066 — 462,066 Change in due to/from brokers, net — — (261,994 ) — (261,994 ) Net cash provided by investing activities — — 146,933 — 146,933 Financing activities Proceeds from issuance of Third Point Re common shares, net of costs 998 — — — 998 Purchases of Third Point Re common shares under share repurchase program (40,864 ) — — — (40,864 ) Decrease in deposit liabilities, net — — (124 ) — (124 ) Change in total noncontrolling interests in related party, net — — (18,066 ) — (18,066 ) Dividend received by (paid to) parent — 8,300 (8,300 ) — — Net cash provided by (used in) financing activities (39,866 ) 8,300 (26,490 ) — (58,056 ) Net increase (decrease) in cash, cash equivalents and restricted cash (1,350 ) 196 72,586 — 71,432 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 $ 279 $ 275 $ 379,769 $ — $ 380,323

Subsequent events Subsequent ev

Subsequent events Subsequent event (Tables)	6 Months Ended
	Jun. 30, 2018
Subsequent Event [Abstract]
Schedule of Subsequent Events [Table Text Block]	If the LPA had been in effect on June 30, 2018, we anticipate that the Company’s selected consolidated balance sheets data as of June 30, 2018 would have appeared as follows: June 30, 2018 As previously reported Pro-forma under new investment structure Selected Consolidated Balance Sheets Data: Total investments in securities (1) $ 3,098,125 $ 1,991,129 Total assets 4,909,619 3,504,693 Total liabilities 3,305,530 1,912,939 Shareholders’ equity attributable to Third Point Re common shareholders 1,591,754 1,591,754 Total shareholders’ equity $ 1,596,910 $ 1,591,754 (1) Total investments in securities included in “Pro-forma under new investment structure” include the Company’s investment in related party investment fund, Third Point Enhanced LP, and collateral assets consisting of debt securities.

Significant accounting polici51

Significant accounting policies Recent accounting pronouncements (Details) $ in Millions	6 Months Ended
	Jun. 30, 2017USD ($)
Accounting Standards Update 2016-18 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Prior Period Reclassification Adjustment	$ 73.1

Restricted cash and cash equi52

Restricted cash and cash equivalents and restricted investments (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Restricted Cash and Cash Equivalents Items [Line Items]
Cash and cash equivalents	$ 17,451	$ 8,197
Restricted cash and cash equivalents	569,968	541,136
Total cash, cash equivalents and restricted cash	587,419	549,333	$ 380,323	$ 308,891
Restricted Investments	310,205	326,429
Total restricted cash and cash equivalents and investments	897,624	875,762
Restricted cash securing letter of credit facilities
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash and cash equivalents	240,545	250,487
Restricted cash securing other reinsurance contracts
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash and cash equivalents	$ 329,423	$ 290,649

Investments - Schedule of the s

Investments - Schedule of the separate account managed by TP LLC (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets
Total assets	$ 3,965,816	$ 3,918,480
Liabilities and noncontrolling interests in related party
Total liabilities and shareholders' equity	1,404,926	1,328,585
Total net investments managed by Third Point LLC	2,560,890	2,589,895
Total investments in securities
Assets
Total assets	3,097,918	2,995,097
Cash and cash equivalents
Assets
Total assets	43	8
Restricted cash and cash equivalents
Assets
Total assets	569,968	541,136
Due from brokers
Assets
Total assets	258,764	305,093
Derivative assets, at fair value
Assets
Total assets	34,738	73,372
Interest and dividends receivable
Assets
Total assets	4,385	3,774
Accounts payable and accrued expenses
Liabilities and noncontrolling interests in related party
Total liabilities and shareholders' equity	3,070	5,137
Securities sold, not yet purchased
Liabilities and noncontrolling interests in related party
Total liabilities and shareholders' equity	443,216	394,278
Securities sold under an agreement to repurchase
Liabilities and noncontrolling interests in related party
Total liabilities and shareholders' equity	0	29,618
Due to brokers
Liabilities and noncontrolling interests in related party
Total liabilities and shareholders' equity	926,588	770,205
Derivative liabilities, at fair value
Liabilities and noncontrolling interests in related party
Total liabilities and shareholders' equity	12,380	14,503
Performance fee payable to related party
Liabilities and noncontrolling interests in related party
Total liabilities and shareholders' equity	4,641	0
Interest and dividends payable
Liabilities and noncontrolling interests in related party
Total liabilities and shareholders' equity	2,696	1,218
Total noncontrolling interests in related party
Liabilities and noncontrolling interests in related party
Total liabilities and shareholders' equity	$ 12,335	$ 113,626

Investments - Schedule of the l

Investments - Schedule of the largest concentration of asset-backed securities (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Schedule of Available-for-sale Securities
Asset-backed securities	$ 180,771	$ 225,499
Portfolio Concentration Risk | Asset-backed securities
Schedule of Available-for-sale Securities
Asset-backed securities	$ 180,771	$ 225,499
Concentration risk, percentage	100.00%	100.00%
Portfolio Concentration Risk | Asset-backed securities | Reperforming loans
Schedule of Available-for-sale Securities
Asset-backed securities	$ 109,117	$ 160,354
Concentration risk, percentage	60.40%	71.10%
Portfolio Concentration Risk | Asset-backed securities | Market place loans
Schedule of Available-for-sale Securities
Asset-backed securities	$ 60,664	$ 52,584
Concentration risk, percentage	33.60%	23.30%
Portfolio Concentration Risk | Asset-backed securities | Other debt securities
Schedule of Available-for-sale Securities
Asset-backed securities	$ 10,990	$ 12,561
Concentration risk, percentage	6.00%	5.60%

Investments - Schedule of inves

Investments - Schedule of investments, categorized by the level of the fair value hierarchy (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Assets
Equity securities	$ 2,366,637	$ 2,221,130
Private common equity securities	4,362	4,794
Private preferred equity securities	56,769	57,126
Total equities	2,427,768	2,283,050
Asset-backed securities	180,771	225,499
Bank debt	22,566	14,550
Corporate bonds	53,175	77,086
Municipal bonds	40,432
U.S. Treasury securities	236,600	249,994
Sovereign debt	83,244	102,569
Other debt securities	1,125	5,460
Total debt securities	617,913	675,158
Options	9,405	4,951
Rights and warrants	639	603
Real estate	7,351	6,831
Trade claims	3,068	7,496
Total other investments	20,463	19,881
Derivative assets, at fair value	34,738	73,372
Total assets	3,100,882	3,051,461
Investments in funds valued at NAV	31,981	17,850
Assets Including Alternative Investments, Fair Value Disclosure	3,132,863	3,069,311
Liabilities
Equity securities	417,577	364,215
Corporate bonds	20,181	21,699
Options	5,458	8,364
Total securities sold, not yet purchased	443,216	394,278
Derivative liabilities, at fair value	12,380	14,503
Derivative liabilities (embedded)	164	171
Total liabilities	455,760	408,952
Quoted prices in active markets (Level 1)
Assets
Equity securities	2,360,825	2,200,379
Private common equity securities	0	0
Private preferred equity securities	0	0
Total equities	2,360,825	2,200,379
Asset-backed securities	0	0
Bank debt	0	0
Corporate bonds	0	0
Municipal bonds	0
U.S. Treasury securities	0	0
Sovereign debt	0	0
Other debt securities	0	0
Total debt securities	0	0
Options	962	1,973
Rights and warrants	214	0
Real estate	0	0
Trade claims	0	0
Total other investments	1,176	1,973
Derivative assets, at fair value	0	0
Total assets	2,362,001	2,202,352
Liabilities
Equity securities	417,577	364,215
Corporate bonds	0	0
Options	1,396	2,668
Total securities sold, not yet purchased	418,973	366,883
Derivative liabilities, at fair value	0	0
Derivative liabilities (embedded)	0	0
Total liabilities	418,973	366,883
Significant other observable inputs (Level 2)
Assets
Equity securities	5,812	20,751
Private common equity securities	0	0
Private preferred equity securities	0	0
Total equities	5,812	20,751
Asset-backed securities	152,632	198,191
Bank debt	22,566	14,550
Corporate bonds	43,207	67,218
Municipal bonds	40,432
U.S. Treasury securities	236,600	249,994
Sovereign debt	83,244	102,569
Other debt securities	1,125	4,747
Total debt securities	579,806	637,269
Options	8,443	2,978
Rights and warrants	1	168
Real estate	0	0
Trade claims	3,068	7,496
Total other investments	11,512	10,642
Derivative assets, at fair value	27,852	73,372
Total assets	624,982	742,034
Liabilities
Equity securities	0	0
Corporate bonds	20,181	21,699
Options	4,062	5,696
Total securities sold, not yet purchased	24,243	27,395
Derivative liabilities, at fair value	10,541	12,418
Derivative liabilities (embedded)	0	0
Total liabilities	34,784	39,813
Significant unobservable inputs (Level 3)
Assets
Equity securities	0	0
Private common equity securities	4,362	4,794
Private preferred equity securities	56,769	57,126
Total equities	61,131	61,920
Asset-backed securities	28,139	27,308
Bank debt	0	0
Corporate bonds	9,968	9,868
Municipal bonds	0
U.S. Treasury securities	0	0
Sovereign debt	0	0
Other debt securities	0	713
Total debt securities	38,107	37,889
Options	0	0
Rights and warrants	424	435
Real estate	7,351	6,831
Trade claims	0	0
Total other investments	7,775	7,266
Derivative assets, at fair value	6,886	0
Total assets	113,899	107,075
Liabilities
Equity securities	0	0
Corporate bonds	0	0
Options	0	0
Total securities sold, not yet purchased	0	0
Derivative liabilities, at fair value	1,839	2,085
Derivative liabilities (embedded)	164	171
Total liabilities	$ 2,003	$ 2,256

Investments - Schedule of recon

Investments - Schedule of reconciliation of the balances for all investments measured at fair value using significant unobservable inputs (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Assets
Asset fair value, beginning balance	$ 104,676	$ 91,586	$ 107,075	$ 88,866
Transfers in to (out of) Level 3	12,018	15,453	13,804	19,570
Purchases	21,233	26,384	34,255	36,306
Sales	(22,980)	(21,011)	(37,491)	(33,591)
Realized and Unrealized Gains (Losses) (1)	(1,048)	1,486	(3,744)	2,747
Asset fair value, ending balance	113,899	113,898	113,899	113,898
Liabilities
Liability fair value, beginning balance	(2,120)	(1,437)	(2,256)	(1,418)
Transfers in to (out of) Level 3	10	0	13	0
Purchases	0	0	0	0
Sales	0	(41)	0	(41)
Realized and Unrealized Gains(Losses)	107	(69)	240	(88)
Liability fair value, ending balance	(2,003)	(1,547)	(2,003)	(1,547)
Total change in unrealized (gains) losses on fair value of assets using significant unobservable inputs	2,900	(1,900)	6,900	(600)
Derivative liabilities (free standing)
Liabilities
Liability fair value, beginning balance	(1,996)	(1,326)	(2,085)	(1,326)
Transfers in to (out of) Level 3	10	0	13	0
Purchases	0	0	0	0
Sales	0	(41)	0	(41)
Realized and Unrealized Gains(Losses)	147	0	233	0
Liability fair value, ending balance	(1,839)	(1,367)	(1,839)	(1,367)
Derivative liabilities (embedded)
Liabilities
Liability fair value, beginning balance	(124)	(111)	(171)	(92)
Transfers in to (out of) Level 3	0	0	0	0
Purchases	0	0	0	0
Sales	0	0	0	0
Realized and Unrealized Gains(Losses)	(40)	(69)	7	(88)
Liability fair value, ending balance	(164)	(180)	(164)	(180)
Private common equity securities
Assets
Asset fair value, beginning balance	4,352	4,745	4,794	4,799
Transfers in to (out of) Level 3	0	0	0	0
Purchases	21	0	22	0
Sales	0	0	0	0
Realized and Unrealized Gains (Losses) (1)	(11)	30	(454)	(24)
Asset fair value, ending balance	4,362	4,775	4,362	4,775
Private preferred equity securities
Assets
Asset fair value, beginning balance	55,231	48,350	57,126	48,834
Transfers in to (out of) Level 3	0	0	0	0
Purchases	2,350	939	2,509	939
Sales	(977)	(123)	(992)	(495)
Realized and Unrealized Gains (Losses) (1)	165	1,593	(1,874)	1,481
Asset fair value, ending balance	56,769	50,759	56,769	50,759
Asset-backed securities
Assets
Asset fair value, beginning balance	27,256	20,785	27,308	17,628
Transfers in to (out of) Level 3	3,622	15,642	6,104	20,016
Purchases	18,350	22,038	30,610	31,958
Sales	(21,188)	(20,545)	(35,522)	(32,237)
Realized and Unrealized Gains (Losses) (1)	99	(2,209)	(361)	(1,654)
Asset fair value, ending balance	28,139	35,711	28,139	35,711
Bank debt
Assets
Asset fair value, beginning balance		8,722		8,350
Transfers in to (out of) Level 3		(189)		(446)
Purchases		3		4
Sales		(23)		(272)
Realized and Unrealized Gains (Losses) (1)		1,733		2,610
Asset fair value, ending balance		10,246		10,246
Corporate bonds
Assets
Asset fair value, beginning balance	10,081	8,984	9,868	9,255
Transfers in to (out of) Level 3	0	0	0	0
Purchases	512	92	532	93
Sales	(817)	(320)	(817)	(587)
Realized and Unrealized Gains (Losses) (1)	192	339	385	334
Asset fair value, ending balance	9,968	9,095	9,968	9,095
Other debt securities
Assets
Asset fair value, beginning balance		0	713	0
Transfers in to (out of) Level 3		0	0	0
Purchases		3,312	0	3,312
Sales		0	(913)	0
Realized and Unrealized Gains (Losses) (1)		0	200	0
Asset fair value, ending balance	0	$ 3,312	0	$ 3,312
Rights and warrants
Assets
Asset fair value, beginning balance	819		435
Transfers in to (out of) Level 3	(1)		(1)
Purchases	0		582
Sales	(388)		(593)
Realized and Unrealized Gains (Losses) (1)	(6)		1
Asset fair value, ending balance	424		424
Real estate
Assets
Asset fair value, beginning balance	6,937		6,831
Transfers in to (out of) Level 3	0		0
Purchases	0		0
Sales	0		(153)
Realized and Unrealized Gains (Losses) (1)	414		673
Asset fair value, ending balance	7,351		7,351
Derivative [Member]
Assets
Asset fair value, beginning balance	0		0
Transfers in to (out of) Level 3	8,397		7,701
Purchases	0		0
Sales	390		1,499
Realized and Unrealized Gains (Losses) (1)	(1,901)		(2,314)
Asset fair value, ending balance	$ 6,886		$ 6,886

Investments - Schedule of unobs

Investments - Schedule of unobservable inputs (Details) - Significant unobservable inputs (Level 3) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018USD ($)	Dec. 31, 2017USD ($)
Private Equity Funds | Market Approach Valuation Technique
Fair Value Inputs, Assets, Quantitative Information
Investments, Fair Value Disclosure	$ 4,969	$ 37,507
Private Equity Funds | Market Approach Valuation Technique | Minimum
Fair Value Inputs, Assets, Quantitative Information
Volatility	40.00%	35.00%
Fair Value Assumptions, Exit Term		6 months
Fair Value Assumptions, Multiples	6.5	7.8
Private Equity Funds | Market Approach Valuation Technique | Maximum
Fair Value Inputs, Assets, Quantitative Information
Volatility	45.00%	65.00%
Fair Value Assumptions, Exit Term		1 year 9 months 20 days
Fair Value Assumptions, Multiples	10	24.4
Other debt securities | Discounted cash flow
Fair Value Inputs, Assets, Quantitative Information
Investments, Fair Value Disclosure		$ 713
Fair Value Inputs, Cap Rate		10.00%
Real Estate | Discounted cash flow
Fair Value Inputs, Assets, Quantitative Information
Investments, Fair Value Disclosure	$ 7,054	$ 6,831
Fair Value Inputs, Discount Rate	9.50%	9.50%
Fair Value Inputs, Cap Rate	6.50%
Real Estate | Discounted cash flow | Minimum
Fair Value Inputs, Assets, Quantitative Information
Fair Value Inputs, Cap Rate		6.50%
Real Estate | Discounted cash flow | Maximum
Fair Value Inputs, Assets, Quantitative Information
Fair Value Inputs, Cap Rate		10.00%
Rights and warrants | Market Approach Valuation Technique | Minimum
Fair Value Inputs, Assets, Quantitative Information
Fair Value Assumptions, Multiples	3	3.8
Rights and warrants | Market Approach Valuation Technique | Maximum
Fair Value Inputs, Assets, Quantitative Information
Fair Value Assumptions, Multiples	3.6	4.6
Rights and warrants | Discounted cash flow
Fair Value Inputs, Assets, Quantitative Information
Investments, Fair Value Disclosure	$ 424	$ 433
Fair Value Inputs, Discount Rate	15.50%	13.50%
Fair Value Assumptions, Exit Term	5 years	5 years

Investments - Narrative (Detail

Investments - Narrative (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Investment
Securities valued based on dealer quotes or other quoted market prices for similar securities	$ 158,200,000		$ 158,200,000		$ 234,400,000
Percent of securities valued based on dealer quotes or other quoted market prices for similar securities	5.10%		5.10%		7.60%
Securities sold, not yet purchased, valued based on dealer quotes or other quoted market prices for similar securities	$ 2,100,000		$ 2,100,000		$ 2,100,000
Percent of securities sold, not yet purchased, valued based on dealer quotes or other quoted market prices for similar securities	0.50%		0.50%		0.50%
Private common equity securities	$ 90,800,000		$ 90,800,000		$ 83,400,000
investments fair valued by the Company’s Investment Manager	2.90%		2.90%		2.70%
Private securities, percent fair valued by third party valuation firm	98.30%		98.30%
Transfer of Assets from Level 1 to Level 2	$ 200,000		$ 200,000		$ 0
Total change in unrealized (gains) losses on fair value of assets using significant unobservable inputs	2,900,000	$ (1,900,000)	6,900,000	$ (600,000)
Equity securities
Investment
Trading securities, change in unrealized holding gains (loss)	2,900,000	71,200,000	(21,000,000)	176,300,000
Debt securities
Investment
Trading securities, change in unrealized holding gains (loss)	$ (17,700,000)	$ (10,800,000)	$ (18,400,000)	$ (9,100,000)

Securities purchased under an59

Securities purchased under an agreement to sell, securities sold under an agreement to repurchase and securities lending transactions (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Minimum
Investment Holdings [Line Items]
Maturity term for reverse repurchase agreements	30 days
Maximum
Investment Holdings [Line Items]
Maturity term for reverse repurchase agreements	90 days
Asset-backed securities
Investment Holdings [Line Items]
Securities Sold under Agreements to Repurchase, Gross Including Not Subject to Master Netting Arrangement		$ 29,618
Overnights and continuous | Asset-backed securities
Investment Holdings [Line Items]
Securities Sold under Agreements to Repurchase, Gross Including Not Subject to Master Netting Arrangement		0
Up to 30 days | Asset-backed securities
Investment Holdings [Line Items]
Securities Sold under Agreements to Repurchase, Gross Including Not Subject to Master Netting Arrangement		10,774
30 - 90 days | Asset-backed securities
Investment Holdings [Line Items]
Securities Sold under Agreements to Repurchase, Gross Including Not Subject to Master Netting Arrangement		18,844
Greater than 90 days | Asset-backed securities
Investment Holdings [Line Items]
Securities Sold under Agreements to Repurchase, Gross Including Not Subject to Master Netting Arrangement		$ 0

Due from_to brokers (Details)

Due from/to brokers (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Due from brokers
Cash held at brokers	$ 247,145	$ 295,467
Receivable from unsettled trades (1)	11,619	9,626
Due from brokers	258,764	305,093
Due to brokers
Borrowing from prime brokers	862,774	759,267
Payable from unsettled trades	63,814	10,938
Payables to Broker-Dealers and Clearing Organizations	926,588	770,205
Collateral	880,200	867,600
Non-US
Due from brokers
Cash held at brokers	$ 100,300	$ 70,100

Derivatives - Schedule of listi

Derivatives - Schedule of listing currency, fair value and notional amounts of derivative instruments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Derivative
Derivative assets, at fair value	$ 34,738		$ 34,738		$ 73,372
Derivative Assets, Notional Amount	1,375,657		1,375,657		944,973
Derivative liabilities, at fair value	12,380		12,380		14,503
Derivative Liabilities, Notional Amount	1,102,019		1,102,019		864,947
Realized Gain (Loss)	11,089	$ 18,337	27,909	$ 15,113
Unrealized Gain (Loss)	(2,409)	1,340	(21,850)	15,292
Credit Default Swaps - Protection Purchased
Derivative
Derivative assets, at fair value	7,426		7,426		8,205
Derivative Assets, Notional Amount	72,960		72,960		50,593
Derivative liabilities, at fair value	95		95		1,250
Derivative Liabilities, Notional Amount	17,004		17,004		19,418
Realized Gain (Loss)	130	(1,137)	(1,118)	(2,465)
Unrealized Gain (Loss)	(2,581)	(1,590)	(2,022)	30
Total Return Swaps - Long Contracts
Derivative
Derivative assets, at fair value	6,681		6,681		25,245
Derivative Assets, Notional Amount	6,681		6,681		25,245
Realized Gain (Loss)	1,377	(29)	1,819	(29)
Unrealized Gain (Loss)	(1,981)	(37)	(1,176)	(37)
Credit Default Swaps - Protection Sold
Derivative
Derivative liabilities, at fair value	2,147		2,147		2,085
Derivative Liabilities, Notional Amount	5,003		5,003		2,351
Realized Gain (Loss)	(718)	18	130	37
Unrealized Gain (Loss)	1,053	(35)	292	(59)
Contracts for Differences | Long Contracts / Purchased
Derivative
Derivative assets, at fair value	9,641		9,641		17,298
Derivative Assets, Notional Amount	104,549		104,549		163,868
Derivative liabilities, at fair value	3,726		3,726		2,200
Derivative Liabilities, Notional Amount	79,109		79,109		93,200
Realized Gain (Loss)	11,107	39,055	25,307	46,925
Unrealized Gain (Loss)	(606)	1,211	(9,184)	6,687
Contracts for Differences | Short Contracts / Sold
Derivative
Derivative assets, at fair value	3,062		3,062		4,384
Derivative Assets, Notional Amount	19,382		19,382		31,992
Derivative liabilities, at fair value	1,528		1,528		776
Derivative Liabilities, Notional Amount	58,391		58,391		8,483
Realized Gain (Loss)	1,650	(993)	5,710	(4,205)
Unrealized Gain (Loss)	(1,994)	1,821	(2,075)	2,945
Total Return Swaps | Long Contracts / Purchased
Derivative
Derivative assets, at fair value					15,936
Derivative Assets, Notional Amount					96,388
Derivative liabilities, at fair value					73
Derivative Liabilities, Notional Amount					50,858
Realized Gain (Loss)	(1,632)	61	17,559	3,862
Unrealized Gain (Loss)	(787)	3,545	(15,864)	8,547
Total Return Swaps | Short Contracts / Sold
Derivative
Derivative assets, at fair value					1
Derivative Assets, Notional Amount					0
Derivative liabilities, at fair value					1,885
Derivative Liabilities, Notional Amount					52,657
Realized Gain (Loss)	(9,517)	(1,014)	(16,373)	(3,743)
Unrealized Gain (Loss)	118	1,201	1,883	788
Interest Rate Swaps
Derivative
Realized Gain (Loss)	0	(4,550)	0	(3,097)
Unrealized Gain (Loss)	0	(2,105)	0	(1,740)
Interest Rate Swaptions
Derivative
Derivative assets, at fair value	452		452		539
Derivative Assets, Notional Amount	488,780		488,780		64,950
Derivative liabilities, at fair value	89		89		70
Derivative Liabilities, Notional Amount	488,417		488,417		64,482
Realized Gain (Loss)	0	(720)	0	522
Unrealized Gain (Loss)	(180)	(573)	(401)	(2,342)
Futures | Long Contracts / Purchased
Derivative
Realized Gain (Loss)	403	0	403	0
Unrealized Gain (Loss)	0	0	0	0
Futures | Short Contracts / Sold
Derivative
Realized Gain (Loss)	50	0	50	0
Unrealized Gain (Loss)	0	0	0	0
Sovereign Debt Futures - Short Contracts | Short Contracts / Sold
Derivative
Derivative liabilities, at fair value	644		644
Derivative Liabilities, Notional Amount	106,600		106,600
Realized Gain (Loss)	(560)	(6,874)	(561)	(8,656)
Unrealized Gain (Loss)	(620)	(106)	(644)	658
Total Return Swap [Member] | Long Contracts / Purchased
Derivative
Derivative liabilities, at fair value	3,277		3,277
Derivative Liabilities, Notional Amount	19,175		19,175
Realized Gain (Loss)	0	0	0	0
Unrealized Gain (Loss)	(3,277)	0	(3,277)	0
Sovereign Futures | Long Contracts / Purchased
Derivative
Realized Gain (Loss)	639	0	639	0
Unrealized Gain (Loss)	0	0	0	0
Foreign Currency Forward Contracts
Derivative
Derivative assets, at fair value	6,386		6,386		1,764
Derivative Assets, Notional Amount	613,867		613,867		511,937
Derivative liabilities, at fair value	347		347		6,164
Derivative Liabilities, Notional Amount	221,008		221,008		573,498
Realized Gain (Loss)	4,182	(4,161)	(9,634)	(10,035)
Unrealized Gain (Loss)	7,776	(2,653)	10,441	(1,268)
Foreign Currency Future Options - Purchased | Long Contracts / Purchased
Derivative
Realized Gain (Loss)	(108)	0	(108)	0
Unrealized Gain (Loss)	0	0	0	0
Foreign Currency Options | Long Contracts / Purchased
Derivative
Derivative assets, at fair value	1,090		1,090
Derivative Assets, Notional Amount	69,438		69,438
Realized Gain (Loss)	4,571	(1,318)	4,571	(6,187)
Unrealized Gain (Loss)	1,045	661	469	1,163
Foreign Currency Options | Short Contracts / Sold
Derivative
Derivative liabilities, at fair value	527		527
Derivative Liabilities, Notional Amount	107,312		107,312
Realized Gain (Loss)	(485)	(1)	(485)	2,184
Unrealized Gain (Loss)	(375)	0	(292)	(80)
Embedded derivatives in reinsurance contracts
Derivative
Derivative liabilities, at fair value	164		164		171
Derivative Liabilities, Notional Amount	20,000		20,000		20,000
Realized Gain (Loss)	0	0	0	0
Unrealized Gain (Loss)	(40)	(69)	7	(88)
Derivative liabilities (embedded)
Derivative
Derivative liabilities, at fair value	164		164		171
Derivative Liabilities, Notional Amount	20,000		20,000		$ 20,000
Realized Gain (Loss)	0	0	0	0
Unrealized Gain (Loss)	$ (40)	$ (69)	$ 7	$ (88)

Derivatives - Narrative (Detail

Derivatives - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2018	Dec. 31, 2017
Derivative
Derivative credit liability	$ 3.1	$ 3.6
OTC Option Asset	8.5	3
OTC Option Liability	4.1	5.7
Derivative Instruments with Credit-Risk-Related Contingent Features
Derivative
Right to reclaim cash	59.1	$ 103
Obligation to return cash	$ 2.2

Derivatives - Schedule of gross

Derivatives - Schedule of gross and net amounts of derivative instruments that are subject to enforceable master netting arrangements or similar agreements (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial assets, derivative assets and collateral received	$ 34,738	$ 73,372
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial liabilities, derivative liabilities and collateral pledged	12,380	14,503
Financial assets, derivative assets and collateral received
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial assets, derivative assets and collateral received	43,182	76,350
Financial Instruments	13,359	16,583
Cash Collateral Received	2,204	3,222
Net Amount	27,619	56,545
Financial assets, derivative assets and collateral received | Counterparty 1
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial assets, derivative assets and collateral received	190	167
Financial Instruments	190	167
Cash Collateral Received	0	0
Net Amount	0	0
Financial assets, derivative assets and collateral received | Counterparty 2
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial assets, derivative assets and collateral received	1,197	1,343
Financial Instruments	1,197	706
Cash Collateral Received	0	0
Net Amount	0	637
Financial assets, derivative assets and collateral received | Counterparty 3
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial assets, derivative assets and collateral received	17,207	37,313
Financial Instruments	4,303	2,705
Cash Collateral Received	0	0
Net Amount	12,904	34,608
Financial assets, derivative assets and collateral received | Counterparty 4
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial assets, derivative assets and collateral received	2,926	2,683
Financial Instruments	2,889	2,683
Cash Collateral Received	0	0
Net Amount	37	0
Financial assets, derivative assets and collateral received | Counterparty 5
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial assets, derivative assets and collateral received	6,477	14,798
Financial Instruments	1,345	6,647
Cash Collateral Received	40	0
Net Amount	5,092	8,151
Financial assets, derivative assets and collateral received | Counterparty 6
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial assets, derivative assets and collateral received	3,713	5,338
Financial Instruments	33	9
Cash Collateral Received	1,314	2,122
Net Amount	2,366	3,207
Financial assets, derivative assets and collateral received | Counterparty 7
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial assets, derivative assets and collateral received	1,059	1,377
Financial Instruments	0	0
Cash Collateral Received	850	1,100
Net Amount	209	277
Financial assets, derivative assets and collateral received | Counterparty 8
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial assets, derivative assets and collateral received	8,233	12,628
Financial Instruments	1,222	2,963
Cash Collateral Received	0	0
Net Amount	7,011	9,665
Financial assets, derivative assets and collateral received | Counterparty 9
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial assets, derivative assets and collateral received	2,180	703
Financial Instruments	2,180	703
Cash Collateral Received	0	0
Net Amount	0	0
Financial liabilities, derivative liabilities and collateral pledged
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial liabilities, derivative liabilities and collateral pledged	16,444	20,199
Financial Instruments	13,359	16,583
Cash Collateral Received	3,085	3,512
Net Amount	0	104
Financial liabilities, derivative liabilities and collateral pledged | Counterparty 1
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial liabilities, derivative liabilities and collateral pledged	539	1,340
Financial Instruments	190	167
Cash Collateral Received	349	1,173
Net Amount	0	0
Financial liabilities, derivative liabilities and collateral pledged | Counterparty 2
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial liabilities, derivative liabilities and collateral pledged	1,482	706
Financial Instruments	1,197	706
Cash Collateral Received	285	0
Net Amount	0	0
Financial liabilities, derivative liabilities and collateral pledged | Counterparty 3
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial liabilities, derivative liabilities and collateral pledged	4,303	2,705
Financial Instruments	4,303	2,705
Cash Collateral Received	0	0
Net Amount	0	0
Financial liabilities, derivative liabilities and collateral pledged | Counterparty 4
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial liabilities, derivative liabilities and collateral pledged	3,000	3,812
Financial Instruments	2,889	2,683
Cash Collateral Received	111	1,129
Net Amount	0	0
Financial liabilities, derivative liabilities and collateral pledged | Counterparty 5
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial liabilities, derivative liabilities and collateral pledged	1,345	6,647
Financial Instruments	1,345	6,647
Cash Collateral Received	0	0
Net Amount	0	0
Financial liabilities, derivative liabilities and collateral pledged | Counterparty 6
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial liabilities, derivative liabilities and collateral pledged	33	9
Financial Instruments	33	9
Cash Collateral Received	0	0
Net Amount	0	0
Financial liabilities, derivative liabilities and collateral pledged | Counterparty 8
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial liabilities, derivative liabilities and collateral pledged	1,222	2,963
Financial Instruments	1,222	2,963
Cash Collateral Received	0	0
Net Amount	0	0
Financial liabilities, derivative liabilities and collateral pledged | Counterparty 9
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial liabilities, derivative liabilities and collateral pledged	4,520	1,181
Financial Instruments	2,180	703
Cash Collateral Received	2,340	478
Net Amount	0	0
Financial liabilities, derivative liabilities and collateral pledged | Counterparty 15
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial liabilities, derivative liabilities and collateral pledged		836
Financial Instruments		0
Cash Collateral Received		732
Net Amount		104
Net investment gains (losses) on securities sold under an agreement to repurchase
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial liabilities, derivative liabilities and collateral pledged		29,618
Financial Instruments		29,618
Cash Collateral Received		0
Net Amount		0
Net investment gains (losses) on securities sold under an agreement to repurchase | Counterparty 4
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial liabilities, derivative liabilities and collateral pledged		29,618
Financial Instruments		29,618
Cash Collateral Received		0
Net Amount		$ 0
Securities lending transactions [Member] | Counterparty 5
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial liabilities, derivative liabilities and collateral pledged	7,341
Financial Instruments	7,341
Cash Collateral Received	0
Net Amount	0
Securities lending transactions [Member] | Financial liabilities, derivative liabilities and collateral pledged
Gross Amounts not Offset in the Condensed Consolidated Balance Sheet
Financial liabilities, derivative liabilities and collateral pledged	7,341
Financial Instruments	7,341
Cash Collateral Received	0
Net Amount	$ 0

Loss and loss adjustment expe64

Loss and loss adjustment expense reserves - Schedule of loss and loss adjustment expense reserves (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Insurance Loss Reserves [Abstract]
Case loss and loss adjustment expense reserves	$ 116,957	$ 115,622
Incurred but not reported loss and loss adjustment expense reserves	673,840	604,260
Deferred gains on retroactive reinsurance contracts	516	688
Loss and loss adjustment expense reserves	$ 791,313	$ 720,570

Loss and loss adjustment expe65

Loss and loss adjustment expense reserves - Schedule of activity in the reserve for losses and loss adjustment expenses (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]
Gross reserves for loss and loss adjustment expenses, beginning of period	$ 720,570	$ 605,129
Less: loss and loss adjustment expenses recoverable, beginning of period	(1,113)	(1)
Net reserves for loss and loss adjustment expenses, beginning of period	719,457	605,128
Increase (decrease) in net loss and loss adjustment expenses incurred in respect of losses occurring in:
Current year	167,419	218,559
Prior years (1)	(9,201)	25,285
Total incurred loss and loss adjustment expenses	176,620	193,274
Net loss and loss adjustment expenses paid in respect of losses occurring in:
Current year	(35,471)	(19,737)
Prior years	(70,781)	(111,480)
Total net paid losses	(106,252)	(131,217)
Foreign currency translation	(3,912)	9,561
Net reserves for loss and loss adjustment expenses, end of period	785,913	676,746
Plus: loss and loss adjustment expenses recoverable, end of period	1,414	1,713
Deferred Costs	3,986	0
Gross reserves for loss and loss adjustment expenses, end of period	791,313	678,459
Prior year claim including amortization adjustments	9,200	(25,300)
Amortization of deferred gains on retroactive reinsurance contracts		(1,400)
Unfavorable (Favorable) Reserve Development [Member]
Increase (decrease) in net loss and loss adjustment expenses incurred in respect of losses occurring in:
Prior years (1)	8,500	(32,500)
Net loss and loss adjustment expenses paid in respect of losses occurring in:
Change In Policy Acquisition Costs	(5,700)	(32,500)
Increase in net underwriting loss	2,800
Premium Adjustments on Certain Contracts [Member]
Increase (decrease) in net loss and loss adjustment expenses incurred in respect of losses occurring in:
Prior years (1)	(17,700)	(7,200)
Net loss and loss adjustment expenses paid in respect of losses occurring in:
Change in Accounting Estimate, Financial Impact	22,900	7,600
Prior Year Claims and Claims Adjustment Expense, Increase (Decrease) in Premium Estimates	23,200	(7,600)
Change In Policy Acquisition Costs	(5,200)	$ (400)
Increase in net underwriting loss	300
Impact On Underwriting Income [Member]
Net loss and loss adjustment expenses paid in respect of losses occurring in:
Increase in net underwriting loss	3,100
Worker Compensation Contracts [Member] | Unfavorable (Favorable) Reserve Development [Member]
Net loss and loss adjustment expenses paid in respect of losses occurring in:
Increase in net underwriting loss	5,400
Multi Line Contract [Member] | Unfavorable (Favorable) Reserve Development [Member]
Net loss and loss adjustment expenses paid in respect of losses occurring in:
Increase in net underwriting loss	2,900
Other Insurance Product Line [Member] | Unfavorable (Favorable) Reserve Development [Member]
Net loss and loss adjustment expenses paid in respect of losses occurring in:
Increase in net underwriting loss	1,900
Property | Unfavorable (Favorable) Reserve Development [Member]
Net loss and loss adjustment expenses paid in respect of losses occurring in:
Increase in net underwriting loss	$ (7,400)

Ceded reinsurance premiums (Det

Ceded reinsurance premiums (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Ceded reinsurance premiums [Abstract]
Gross premiums ceded	$ 3,479	$ 1,425	$ 18,125	$ 2,550
Loss and loss adjustment expenses recoverable	$ 1,414	$ 1,713	$ 1,414	$ 1,713	$ 1,113	$ 1

Management, performance and f67

Management, performance and founders fees (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Related Party Transaction
Performance fee payable to related party	$ 4,641		$ 4,641		$ 0
Management and performance fees to related parties	14,493	$ 33,306	24,540	$ 72,631
Management and performance fees
Related Party Transaction
Management and performance fees to related parties	$ 14,493	33,306	$ 24,540	72,631
TP LLC
Related Party Transaction
Annual investment management fee	1.50%		1.50%
Third Point LLC | Management and performance fees
Related Party Transaction
Management and performance fees to related parties	$ 9,635	8,777	$ 19,410	17,244
Third Point Advisors LLC
Related Party Transaction
Annual investment performance fee	20.00%		20.00%
Third Point Advisors LLC | Management and performance fees
Related Party Transaction
Management and performance fees to related parties	$ 4,858	$ 24,529	$ 5,130	$ 55,387
Third Point Advisors LLC | Investment income
Related Party Transaction
Management and performance fees to related parties			$ 500		$ 94,000

Deposit contracts (Details)

Deposit contracts (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Deposit Contracts, Liabilities [Roll Forward]
Balance, beginning of period	$ 129,133	$ 104,905
Consideration received	1,114	22,658
Consideration receivable	0	2,080
Net investment expense allocation	2,449	2,800
Payments	(2,893)	(3,545)
Foreign currency translation	(103)	235
Balance, end of period	$ 129,700	$ 129,133

Senior notes payable and lett69

Senior notes payable and letter of credit facilities (Senior notes payable) (Details) - Senior unsecured notes - 7% Senior Unsecured Notes - USD ($)	Jun. 30, 2018	Dec. 31, 2017	Feb. 28, 2015
Debt Instrument [Line Items]
Debt issued	$ 115,000,000		$ 115,000,000
Interest rate	7.00%		7.00%
Debt issuance cost	$ 1,200,000
Debt fair value	$ 114,500,000	$ 116,700,000

Senior notes payable and lett70

Senior notes payable and letter of credit facilities (Letters of credit) (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Line of Credit Facility
Collateral	$ 880,200,000	$ 867,600,000
Restricted cash securing letter of credit facilities
Line of Credit Facility
Facility	425,000,000
Utilized	240,545,000
Collateral	240,545,000
Restricted cash securing letter of credit facilities | Citibank
Line of Credit Facility
Facility	300,000,000
Utilized	158,312,000
Collateral	158,312,000
Restricted cash securing letter of credit facilities | Lloyds Bank
Line of Credit Facility
Facility	125,000,000
Utilized	82,233,000
Collateral	$ 82,233,000

Net investment income (Details)

Net investment income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net Investment Income [Abstract]
Net realized gains on investments and investment derivatives	$ 64,731	$ 96,869	$ 130,500	$ 157,945
Net change in unrealized gains (losses) on investments and investment derivatives	(32,532)	29,140	(95,520)	124,814
Net losses on foreign currencies	(1,830)	(1,601)	(2,617)	(2,153)
Dividend and interest income	24,493	22,440	37,717	39,707
Dividends paid on securities sold, not yet purchased	(2,329)	(1,143)	(4,221)	(1,668)
Other expenses	(6,865)	(5,074)	(12,352)	(10,179)
Net investment income before management and performance fees to related parties	45,668	140,631	53,507	308,466
Management and performance fees to related parties	(14,493)	(33,306)	(24,540)	(72,631)
Net investment income	$ 31,175	$ 107,325	$ 28,967	$ 235,835

Net investment income - by Type

Net investment income - by Type (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Schedule of Net Investment Income (Loss) by Asset Type
Other investment expenses	$ (673)	$ (2,098)	$ (1,026)	$ (4,012)
Net investment income on derivative contracts	8,680	19,677	6,059	30,405
Net investment loss on cash, including foreign exchange loss	(5,485)	(3,057)	(9,345)	(5,993)
Net investment losses on securities purchased under an agreement to sell and securities sold under an agreement to repurchase	(32)	(19)	(241)	(39)
Withholding taxes reclassified to income tax expense	4,291	3,404	5,256	4,394
Other Investment Income and Other	6,781	17,907	703	24,755
Net investment income before management and performance fees to related parties	45,668	140,631	53,507	308,466
Management and performance fees to related parties	(14,493)	(33,306)	(24,540)	(72,631)
Net investment income	31,175	107,325	28,967	235,835
Net investment income (loss) by asset type
Schedule of Net Investment Income (Loss) by Asset Type
Total net investment income from invested assets	55,491	119,356	52,792	289,727
Net investment income (loss) by asset type | Real estate
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	414	0	501	0
Net investment income (loss) by asset type | Total other investments
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	(5,369)	(10,333)	(6,358)	(17,591)
Net investment income (loss) by asset type | Net investment income (loss) in funds valued at NAV
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	282	3,394	(625)	7,017
Net investment income (loss) by asset type | Options
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	(5,562)	(10,383)	(6,619)	(17,848)
Net investment income (loss) by asset type | Rights and warrants
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	63	(6)	47	38
Net investment income (loss) by asset type | Trade claims
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	(284)	56	(287)	219
Net investment income (loss) by asset type | Equity securities
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	59,036	112,987	38,229	263,491
Net investment income (loss) by asset type | Equity securities
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	58,881	111,622	40,556	261,891
Net investment income (loss) by asset type | Private common equity securities
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	(11)	3	(453)	(24)
Net investment income (loss) by asset type | Private preferred equity securities
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	166	1,362	(1,874)	1,624
Net investment income (loss) by asset type | Debt securities
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	1,542	13,308	21,546	36,810
Net investment income (loss) by asset type | Asset-backed securities
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	7,033	2,300	19,482	5,133
Net investment income (loss) by asset type | Bank debt
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	800	2,072	3,321	6,214
Net investment income (loss) by asset type | Corporate bonds
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	(737)	2,335	(3,413)	11,250
Net investment income (loss) by asset type | Municipal bonds
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	2,470	0	6,248	0
Net investment income (loss) by asset type | U.S. Treasury securities
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	478	1,205	(159)	2,365
Net investment income (loss) by asset type | Sovereign debt
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	(8,533)	5,396	(4,402)	11,848
Net investment income (loss) by asset type | Other debt securities
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	31	0	469	0
Net investment income (loss) by liability type | Options
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	9,174	6,056	12,907	4,363
Net investment income (loss) by liability type | Equity securities
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	(16,604)	3,368	12	(6,016)
Net investment income (loss) by liability type | Equity securities
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	(23,844)	(1,469)	(10,926)	(7,467)
Net investment income (loss) by liability type | Corporate bonds
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	(1,934)	(1,221)	(1,969)	(2,914)
Net investment income (loss) by liability type | Sovereign debt
Schedule of Net Investment Income (Loss) by Asset Type
Investment Income, gross	$ 0	$ 2	$ 0	$ 2

Other expenses (Details)

Other expenses (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Other Income and Expenses [Abstract]
Investment expense (income) on deposit liabilities	$ 1,188	$ (97)	$ 2,449	$ 312
Investment expense and change in fair value of embedded derivatives in reinsurance contracts	2,795	2,202	5,529	4,694
Other expenses	$ 3,983	$ 2,105	$ 7,978	$ 5,006

Income taxes (Details)

Income taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Income Tax
Provision for uncertain tax positions	$ 1,900		$ 1,900		$ 1,900
Income tax expense	4,390	$ 5,307	4,518	$ 10,605
Income tax expense (benefit) related to U.S. and U.K. subsidiaries
Income Tax
Income tax expense	61	1,844	(788)	6,027
Change in uncertain tax positions
Income Tax
Income tax expense	38	59	50	184
Withholding taxes on certain investment transactions
Income Tax
Income tax expense	$ 4,291	$ 3,404	$ 5,256	$ 4,394

Share capital - Common shares a

Share capital - Common shares and treasury shares (Details) - shares	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common shares issued, beginning of period, shares	107,227,347	106,501,299
Retirement of treasury shares and shares repurchased	(8,269,193)	0
Warrants exercised, net	361,556	0
Common shares issued, end of period, shares	99,627,399	107,332,603
Balance, end of period, shares	0	(3,944,920)	(3,944,920)
Common shares outstanding, end of period, shares	99,627,399	103,387,683	103,282,427
Warrants exercised, shares	1,156,184
Warrants retired, shares	794,628
Options exercised
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted	0	100,000
Restricted shares with service condition
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted	50,644	36,418
Performance restricted shares granted, net of forfeitures and shares withheld
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted	257,045	694,886

Share capital - Authorized and

Share capital - Authorized and issued (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Equity [Abstract]
Authorized share capital	$ 33,000,000
Common share, shares authorized (in shares)	300,000,000	300,000,000
Common share, par value (in dollars 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

Share capital - Share repurchas

Share capital - Share repurchase (Details) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2018	Feb. 28, 2018
Share repurchase [Abstract]
Increase in stock repurchase program			$ 148,300,000
Repurchase program, authorized amount			$ 200,000,000
Shares repurchased, shares	2,685,965	4,324,273
Payment to repurchase shares	$ 36,600,000	$ 60,400,000
Average price (usd per share)	$ 13.62	$ 13.97
Stock repurchase program, remaining authorized shares	$ 139,579,994	$ 139,579,994

Share-based compensation - Narr

Share-based compensation - Narrative (Details) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unamortized share compensation expense	$ 9.2	$ 5.8
Unamortized share compensation expense, period of recognition	1 year 7 months 6 days	1 year 6 months
Management and director options
Fair value assumptions
Remaining contractual life	3 years 7 months 27 days	4 years 2 months 12 days
Weighted average contractual term exercisable	3 years 7 months 26 days	4 years 1 month 6 days

Share-based compensation - Sche

Share-based compensation - Schedule of share-based comp expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share compensation expenses	$ 1,313	$ 1,544	$ 2,558	$ 3,374
Management and director options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share compensation expenses	60	111	155	459
Restricted shares with service condition
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share compensation expenses	139	154	279	278
Restricted shares with service and performance condition
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share compensation expenses	$ 1,114	$ 1,279	$ 2,124	$ 2,637

Share-based compensation - Sc80

Share-based compensation - Schedule of management and director options activity (Details) - $ / shares	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Number of options (in shares)
Outstanding (in shares)	8,888,053	9,596,993
Forfeited (in shares)	0	(558,138)
Exercised (in shares)	0	(150,802)
Outstanding (in shares)	8,888,053	8,888,053
Weighted average exercise price (in dollars per share)
Outstanding (in dollars per share)	$ 13.43	$ 13.64
Forfeited (in dollars per share)	0	18
Exercised (in dollars per share)	0	10
Outstanding (in dollars per share)	$ 13.43	$ 13.43

Share-based compensation - Sc81

Share-based compensation - Schedule of management and director options outstanding (Details) - $ / shares	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017	Dec. 31, 2016
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options outstanding (in shares)	8,888,053	8,888,053	9,596,993
Options outstanding, weighted average exercise price (in dollars per share)	$ 13.43	$ 13.43	$ 13.64
Management and director options
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Options outstanding (in shares)	8,888,053
Options outstanding, weighted average exercise price (in dollars per share)	$ 13.43
Remaining contractual life	3 years 7 months 27 days	4 years 2 months 12 days
Options exercisable (in shares)	8,818,287
Options exercisable, weighted average exercise price (in dollars per share)	$ 13.40
Management and director options | $10.00 - $10.89
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower Range Limit (usd per share)	10
Upper Range Limit (usd per share)	$ 10.89
Options outstanding (in shares)	5,123,532
Options outstanding, weighted average exercise price (in dollars per share)	$ 10.04
Remaining contractual life	3 years 7 months 2 days
Options exercisable (in shares)	5,123,531
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]
Lower Range Limit (usd per share)	15.05
Upper Range Limit (usd per share)	$ 16.89
Options outstanding (in shares)	1,917,145
Options outstanding, weighted average exercise price (in dollars per share)	$ 15.93
Remaining contractual life	3 years 9 months 14 days
Options exercisable (in shares)	1,875,285
Options exercisable, weighted average exercise price (in dollars per share)	$ 15.95
Management and director options | $20.00 - $25.05
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Lower Range Limit (usd per share)	20
Upper Range Limit (usd per share)	$ 25.05
Options outstanding (in shares)	1,847,376
Options outstanding, weighted average exercise price (in dollars per share)	$ 20.26
Remaining contractual life	3 years 8 months 23 days
Options exercisable (in shares)	1,819,471
Options exercisable, weighted average exercise price (in dollars per share)	$ 20.22

Share-based compensation - Sc82

Share-based compensation - Schedule of restricted shares with service condition award activity (Details) - Restricted shares with service condition - $ / shares	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Number of non-vested restricted shares (in shares)
Outstanding, beginning of period (in shares)	18,209	301,043
Granted (in shares)	50,644	36,418
Forfeited (in shares)		(71,429)
Vested (in shares)	(20,724)	(247,823)
Outstanding, end of period (in shares)	48,129	18,209
Weighted average grant data fair value (in dollars per share)
Outstanding (in dollars per share)	$ 12.15	$ 11.12
Granted (in dollars per share)	13.45	12.15
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value		14
Vested (in dollars per share)	12.53	10.36
Outstanding (in dollars per share)	$ 13.35	$ 12.15

Share-based compensation - Sc83

Share-based compensation - Schedule of restricted shares with service and performance condition (Details) - Restricted shares with service and performance condition - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Number of non-vested restricted shares (in shares)
Outstanding, beginning of period (in shares)	1,855,379	1,381,740
Granted (in shares)	551,065	935,825
Forfeited (in shares)	(288,700)	(325,568)
Vested (in shares)	(115,757)	(136,618)
Outstanding, end of period (in shares)	2,001,987	1,855,379
Number of non-vested restricted shares probable of vesting
Outstanding, beginning of period (in shares)	887,203	577,486
Granted (in shares)	353,380	623,882
Forfeited (in shares)	0	(45,617)
Vested (in shares)	$ (115,757)	$ (136,618)
Change in estimated restricted shares considered probably of vesting (in shares)	29,509	(131,930)
Outstanding, end of period (in shares)	1,154,335	887,203
Weighted average grant data fair value (in dollars per share)
Outstanding (in dollars per share)	$ 12.60	$ 12.91
Granted (in dollars per share)	14.03	12.66
Forfeited (in dollars per share)	14	12.57
Change in estimated restricted shares considered probable of vesting (in dollars per share)	12.39	12.17
Outstanding (in dollars per share)	12.65	12.60
Vested (in dollars per share)	$ 14	$ 14.60

Non-controlling interests - Sch

Non-controlling interests - Schedule of Noncontrolling Interest (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Redeemable Noncontrolling Interest [Roll Forward]
Balance, beginning of period			$ 108,219
Balance, end of period	$ 7,179		7,179
Balance, beginning of period			5,407
Balance, end of period	5,156		5,156
Total Noncontrolling Interests [Roll Forward]
Total noncontrolling interests in related party	12,335	$ 19,809	12,335	$ 19,809	$ 113,626	$ 35,674
Net income attributable to total noncontrolling interests in related party	209	1,027	219	2,201
Contributions				1,933
Redemptions			(102,000)	(19,999)
Third Point Re BDA
Total Noncontrolling Interests [Roll Forward]
Total noncontrolling interests in related party	9,232	15,941	9,232	15,941	97,619	30,358
Net income attributable to total noncontrolling interests in related party			137	1,764
Contributions			476	1,818
Redemptions			(89,000)	(17,999)
Third Point Re USA
Total Noncontrolling Interests [Roll Forward]
Total noncontrolling interests in related party	3,103	3,868	3,103	3,868	16,007	5,316
Net income attributable to total noncontrolling interests in related party			82	437
Contributions			14	115
Redemptions			(13,000)	(2,000)
Redeemable noncontrolling interests in related party
Redeemable Noncontrolling Interest [Roll Forward]
Balance, beginning of period			108,219	0
Changes in capital account allocation			(101,040)	0
Balance, end of period	7,179	0	7,179	0
Noncontrolling interests in related party
Redeemable Noncontrolling Interest [Roll Forward]
Balance, beginning of period			5,407	35,674
Changes in capital account allocation			(251)	(15,865)
Balance, end of period	5,156	19,809	5,156	19,809
Total noncontrolling interests in related party
Total Noncontrolling Interests [Roll Forward]
Total noncontrolling interests in related party	$ 12,335	19,809	12,335	19,809	$ 113,626	$ 35,674
Changes in capital account allocation			$ (101,291)	(15,865)
Scenario, Adjustment
Redeemable Noncontrolling Interest [Roll Forward]
Balance, end of period		$ 14,900		$ 14,900

Non-controlling interests - Nar

Non-controlling interests - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Noncontrolling Interest [Line Items]
Affiliate Costs	$ 14,493	$ 33,306	$ 24,540	$ 72,631
Cayman Holdco [Member]
Noncontrolling Interest [Line Items]
Equity method investment, ownership percentage	14.60%		14.60%		15.60%
Equity method investments, fair value disclosure	$ 1,200		$ 1,200		$ 600
Payments for (Proceeds from) Limited Partnership			300	(39,600)
Third Point Hellenic Recovery US Feeder Fund, L.P. [Member]
Noncontrolling Interest [Line Items]
Committed Capital	10,700		10,700		$ 10,900
Unfunded Capital Commitments	$ 3,200		$ 3,200
Equity method investment, ownership percentage	2.90%		2.90%		2.90%
Equity method investments, fair value disclosure	$ 4,900		$ 4,900		$ 4,900
Payments for (Proceeds from) Limited Partnership			$ 0	(1,300)
TP DR Holdings LLC [Member]
Noncontrolling Interest [Line Items]
Equity method investment, ownership percentage	100.00%		100.00%
Equity method investment, interest in equity	7.00%		7.00%		7.00%
Equity method investment, interest in debt	14.00%		14.00%		13.10%
Equity method investments, fair value disclosure	$ 13,800		$ 13,800		$ 12,700
Equity Method Investment, Fair Value of Interest in Equity	3,900		3,900		3,700
Equity Method Investment, Fair Value of Interest in Debt	$ 9,900		$ 9,900		$ 9,000
TP Trading II LLC [Member]
Noncontrolling Interest [Line Items]
Equity method investment, ownership percentage	9.40%		9.40%		9.30%
Equity method investments, fair value disclosure	$ 5,900		$ 5,900		$ 6,000
CloudbreakAggregator [Member]
Noncontrolling Interest [Line Items]
Unfunded Capital Commitments	58,500		58,500
Asset-backed securities | Cloudbreak II Cayman Ltd
Noncontrolling Interest [Line Items]
Investments in and Advances to Affiliates, at Fair Value	5,100		5,100		4,600
Real Estate | Ventures Entities [Member]
Noncontrolling Interest [Line Items]
Investments in and Advances to Affiliates, at Fair Value	17,800		17,800		7,500
Investment Securities Class [Domain] | CloudbreakAggregator [Member]
Noncontrolling Interest [Line Items]
Investments in and Advances to Affiliates, at Fair Value	$ 3,200		3,200		0
Cash [Member] | TP DR Holdings LLC [Member]
Noncontrolling Interest [Line Items]
Payments for (Proceeds from) Limited Partnership			1,900	$ 400
Investment income | Third Point Advisors LLC
Noncontrolling Interest [Line Items]
Affiliate Costs			$ 500		$ 94,000

Earnings (loss) per share ava86

Earnings (loss) per share available to Third Point Re common shareholders (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Weighted-average number of common shares outstanding:
Basic number of common shares outstanding	99,498,901	102,283,844	100,342,636	103,144,078
Dilutive effect of options	1,274,609	1,084,217	0	937,864
Dilutive effect of warrants	878,977	988,830	0	860,484
Dilutive effect of restricted shares with service and performance condition	379,998	212,335	0	207,284
Diluted number of common shares outstanding	102,032,485	104,569,226	100,342,636	105,149,710
Basic earnings (loss) per common share:
Net income (loss) available to Third Point Re common shareholders	$ 19,602	$ 74,578	$ (6,399)	$ 178,764
Net income allocated to Third Point Re participating common shareholders	(6)	(71)	0	(204)
Net income (loss) allocated to Third Point Re common shareholders	$ 19,596	$ 74,507	$ (6,399)	$ 178,560
Basic earnings (loss) per common share	$ 0.20	$ 0.73	$ (0.06)	$ 1.73
Earnings per share, diluted [Abstract]
Net income (loss) available to Third Point Re common shareholders	$ 19,602	$ 74,578	$ (6,399)	$ 178,764
Net income allocated to Third Point Re participating common shareholders	(6)	(69)	0	(200)
Net income (loss) allocated to Third Point Re common shareholders	$ 19,596	$ 74,509	$ (6,399)	$ 178,564
Diluted earnings (loss) per common share	$ 0.19	$ 0.71	$ (0.06)	$ 1.70
Options
Earnings per share, diluted [Abstract]
Antidilutive securities excluded from computation of earnings per share	3,764,521	4,322,659	3,764,521	4,322,659
Options and warrants
Earnings per share, diluted [Abstract]
Antidilutive securities excluded from computation of earnings per share			10,003,738

Related party transactions (Det

Related party transactions (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Third Point Loan L.L.C | Investments in securities, commodities, and derivative contracts
Related Party Transaction
Estimated fair value of investment	$ 126		$ 126		$ 99.6
Third Point Ventures L.L.C. | Investments in securities, commodities, and derivative contracts
Related Party Transaction
Estimated fair value of investment	38.9		38.9		6.3
Blackrock Inc. [Domain] | Investment Income [Member]
Related Party Transaction
Related Party Transaction, Other Revenues from Transactions with Related Party	(5.1)	$ 3.6	1.4	$ 3.6
Blackrock Inc. [Domain] | Investments in securities, commodities, and derivative contracts
Related Party Transaction
Estimated fair value of investment	$ 46.9		$ 46.9		$ 106.5

Financial instruments with of88

Financial instruments with off-balance sheet risk or concentrations of credit risk (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Guarantor Obligations [Line Items]
Asset	$ 34,738	$ 73,372
Liability	12,380	14,503
Written credit derivatives | Single name (0 - 250)
Guarantor Obligations [Line Items]
0-5 years	2,375	0
5 years or Greater Expiring Through 2046	2,628	2,351
Total Written Credit Default Swaps	5,003	2,351
Asset	0	0
Liability	2,147	2,085
Net Asset/(Liability)	(2,147)	(2,085)
Credit risk exposure
Guarantor Obligations [Line Items]
Maximum counterparty credit risk exposure	43,200	76,400
Written put options
Guarantor Obligations [Line Items]
Option contracts maximum payout	653,400	399,200
Written put options | Securities sold, not yet purchased
Guarantor Obligations [Line Items]
Options contracts at fair value	$ 4,400	$ 3,500
Written put options | Minimum
Guarantor Obligations [Line Items]
Option contracts maximum payout term	1 month
Written put options | Maximum
Guarantor Obligations [Line Items]
Option contracts maximum payout term	7 months

Commitments and Contingencies (

Commitments and Contingencies (Details) - Senior unsecured notes - 7% Senior Unsecured Notes - USD ($)	Jun. 30, 2018	Feb. 28, 2015
Other Commitments [Line Items]
Debt issued	$ 115,000,000	$ 115,000,000
Interest rate	7.00%	7.00%

Segment reporting - Operating S

Segment reporting - Operating Segments (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018USD ($)	Jun. 30, 2017USD ($)	Jun. 30, 2018USD ($)segment	Jun. 30, 2017USD ($)
Segment Reporting [Abstract]
Number of operating segments | segment			1
Segment Reporting Information [Line Items]
Gross premiums written	$ 49,765	$ 156,564	$ 428,125	$ 302,918
Gross premiums ceded	(3,479)	(1,425)	(18,125)	(2,550)
Net premiums written	46,286	155,139	410,000	300,368
Change in net unearned premium reserves	95,207	18,419	(126,021)	11,199
Net premiums earned	141,493	173,558	283,979	311,567
Loss and loss adjustment expenses incurred, net	84,000	107,379	176,620	193,274
Acquisition costs, net	57,584	68,641	108,989	123,093
General and administrative expenses	9,696	15,014	19,177	25,586
Total expenses	151,280	191,034	304,786	341,953
Net investment income	31,175	107,325	28,967	235,835
Other expenses	(3,983)	(2,105)	(7,978)	(5,006)
Interest expense	(2,051)	(2,051)	(4,080)	(4,077)
Foreign exchange gains	8,847	(4,781)	2,236	(4,796)
Income tax expense	(4,390)	(5,307)	(4,518)	(10,605)
Net income attributable to noncontrolling interests in related party	(209)	(1,027)	(219)	(2,201)
Net income (loss) available to Third Point Re common shareholders	$ 19,602	$ 74,578	$ (6,399)	$ 178,764
Gross Premiums As Percentage Of Total Gross Premiums	100.00%	100.00%	100.00%	100.00%
Corporate
Segment Reporting Information [Line Items]
Gross premiums written	$ 0	$ 0	$ 0	$ 0
Gross premiums ceded	0	0	0	0
Net premiums written	0	0	0	0
Change in net unearned premium reserves	0	0	0	0
Net premiums earned	0	0	0	0
Loss and loss adjustment expenses incurred, net	0	0	0	0
Acquisition costs, net	0	0	0	0
General and administrative expenses	4,733	5,365	9,390	9,625
Total expenses	4,733	5,365	9,390	9,625
Net investment income	26,253	76,119	21,446	168,509
Other expenses	0	0	0	0
Interest expense	(2,051)	(2,051)	(4,080)	(4,077)
Foreign exchange gains	0	0	0	0
Income tax expense	(4,390)	(5,307)	(4,518)	(10,605)
Net income attributable to noncontrolling interests in related party	(209)	(1,027)	(219)	(2,201)
Net income (loss) available to Third Point Re common shareholders	14,870	62,369	3,239	142,001
Property and Casualty Reinsurance | Retroactive Reinsurance Contract [Member]
Segment Reporting Information [Line Items]
Gross premiums written	$ 4,341	$ 109,351	$ 4,341	$ 109,351
Gross Premiums As Percentage Of Total Gross Premiums	8.70%	69.80%	1.00%	36.10%
Property and Casualty Reinsurance | Property
Segment Reporting Information [Line Items]
Gross premiums written	$ 1,660	$ (8,827)	$ 2,029	$ (8,815)
Gross Premiums As Percentage Of Total Gross Premiums	3.30%	(5.60%)	0.50%	(2.90%)
Property and Casualty Reinsurance | Casualty
Segment Reporting Information [Line Items]
Gross premiums written	$ 43,510	$ 15,008	$ 196,730	$ 102,213
Gross Premiums As Percentage Of Total Gross Premiums	87.40%	9.60%	46.00%	33.70%
Property and Casualty Reinsurance | Specialty
Segment Reporting Information [Line Items]
Gross premiums written	$ 254	$ 41,032	$ 225,025	$ 100,169
Gross Premiums As Percentage Of Total Gross Premiums	0.60%	26.20%	52.50%	33.10%
Property and Casualty Reinsurance | Prospective Reinsurance Contract [Member]
Segment Reporting Information [Line Items]
Gross premiums written	$ 45,424	$ 47,213	$ 423,784	$ 193,567
Gross Premiums As Percentage Of Total Gross Premiums	91.30%	30.20%	99.00%	63.90%
Property and Casualty Reinsurance | Operating Segments
Segment Reporting Information [Line Items]
Gross premiums written	$ 49,765	$ 156,564	$ 428,125	$ 302,918
Gross premiums ceded	(3,479)	(1,425)	(18,125)	(2,550)
Net premiums written	46,286	155,139	410,000	300,368
Change in net unearned premium reserves	95,207	18,419	(126,021)	11,199
Net premiums earned	141,493	173,558	283,979	311,567
Loss and loss adjustment expenses incurred, net	84,000	107,379	176,620	193,274
Acquisition costs, net	57,584	68,641	108,989	123,093
General and administrative expenses	4,963	9,649	9,787	15,961
Total expenses	146,547	185,669	295,396	332,328
Net underwriting loss	5,054	12,111	11,417	20,761
Net investment income	4,922	31,206	7,521	67,326
Other expenses	(3,983)	(2,105)	(7,978)	(5,006)
Interest expense	0	0	0	0
Foreign exchange gains	8,847	(4,781)	2,236	(4,796)
Income tax expense	0	0	0	0
Net income attributable to noncontrolling interests in related party	0	0	0	0
Net income (loss) available to Third Point Re common shareholders	$ 4,732	$ 12,209	$ (9,638)	$ 36,763
Loss ratio	59.40%	61.90%	62.20%	62.00%
Acquisition cost ratio	40.70%	39.50%	38.40%	39.50%
Composite ratio	100.10%	101.40%	100.60%	101.50%
General and administrative expense ratio	3.50%	5.60%	3.40%	5.10%
Combined ratio	103.60%	107.00%	104.00%	106.60%

Segment reporting - Concentrati

Segment reporting - Concentration Risk (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenue, Major Customer [Line Items]
Assumed Premiums Written	$ 49,765	$ 156,564	$ 428,125	$ 302,918
Gross Premiums As Percentage Of Total Gross Premiums	100.00%	100.00%	100.00%	100.00%
Gross Premiums Written
Revenue, Major Customer [Line Items]
Assumed Premiums Written	$ 49,765	$ 156,564	$ 428,125	$ 302,918
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
Gross Premiums Written | Contract Concentration Risk
Revenue, Major Customer [Line Items]
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
Gross Premiums Written | Contract Concentration Risk | Largest contract
Revenue, Major Customer [Line Items]
Concentration risk, percentage	32.80%	65.90%	21.40%	34.00%
Gross Premiums Written | Contract Concentration Risk | Second largest contract
Revenue, Major Customer [Line Items]
Concentration risk, percentage	15.40%	12.90%		17.90%
Gross Premiums Written | Contract Concentration Risk | Third largest contract
Revenue, Major Customer [Line Items]
Concentration risk, percentage	13.80%
Gross Premiums Written | Contract Concentration Risk | Total for contracts contributing greater than 10% each
Revenue, Major Customer [Line Items]
Concentration risk, percentage	62.00%	78.80%	21.40%	51.90%
Gross Premiums Written | Contract Concentration Risk | Total for contracts contributing less than 10% each
Revenue, Major Customer [Line Items]
Concentration risk, percentage	38.00%	21.20%	78.60%	48.10%
Property and Casualty Reinsurance | Property Reinsurance [Member]
Revenue, Major Customer [Line Items]
Assumed Premiums Written	$ 1,660	$ (8,827)	$ 2,029	$ (8,815)
Gross Premiums As Percentage Of Total Gross Premiums	3.30%	(5.60%)	0.50%	(2.90%)
Property and Casualty Reinsurance | Casualty
Revenue, Major Customer [Line Items]
Assumed Premiums Written	$ 43,510	$ 15,008	$ 196,730	$ 102,213
Gross Premiums As Percentage Of Total Gross Premiums	87.40%	9.60%	46.00%	33.70%
Property and Casualty Reinsurance | Specialty
Revenue, Major Customer [Line Items]
Assumed Premiums Written	$ 254	$ 41,032	$ 225,025	$ 100,169
Gross Premiums As Percentage Of Total Gross Premiums	0.60%	26.20%	52.50%	33.10%
Property and Casualty Reinsurance | Prospective Reinsurance Contract [Member]
Revenue, Major Customer [Line Items]
Assumed Premiums Written	$ 45,424	$ 47,213	$ 423,784	$ 193,567
Gross Premiums As Percentage Of Total Gross Premiums	91.30%	30.20%	99.00%	63.90%
Property and Casualty Reinsurance | Retroactive Reinsurance Contract [Member]
Revenue, Major Customer [Line Items]
Assumed Premiums Written	$ 4,341	$ 109,351	$ 4,341	$ 109,351
Gross Premiums As Percentage Of Total Gross Premiums	8.70%	69.80%	1.00%	36.10%

Segment reporting - Customer Co

Segment reporting - Customer Concentration (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenue, Major Customer [Line Items]
Gross premiums written	$ 49,765	$ 156,564	$ 428,125	$ 302,918
Gross Premiums Written
Revenue, Major Customer [Line Items]
Gross premiums written	$ 49,765	$ 156,564	$ 428,125	$ 302,918
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
Gross Premiums Written | Customer Concentration Risk
Revenue, Major Customer [Line Items]
Gross premiums written	$ 49,765	$ 156,564	$ 428,125	$ 302,918
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
Gross Premiums Written | Customer Concentration Risk | Largest broker
Revenue, Major Customer [Line Items]
Gross premiums written	$ 19,858	$ 107,612	$ 165,582	$ 107,612
Concentration risk, percentage	39.90%	68.70%	38.70%	35.50%
Gross Premiums Written | Customer Concentration Risk | Second largest broker
Revenue, Major Customer [Line Items]
Gross premiums written		$ 22,448	$ 159,413	$ 73,499
Concentration risk, percentage		14.30%	37.20%	24.30%
Gross Premiums Written | Customer Concentration Risk | Third largest broker
Revenue, Major Customer [Line Items]
Gross premiums written			$ 52,982	$ 35,269
Concentration risk, percentage			12.40%	11.60%
Gross Premiums Written | Customer Concentration Risk | Fourth Largest [Member]
Revenue, Major Customer [Line Items]
Gross premiums written				$ 31,853
Concentration risk, percentage				10.50%
Gross Premiums Written | Customer Concentration Risk | Other
Revenue, Major Customer [Line Items]
Gross premiums written	$ 29,907	$ 26,504	$ 50,148	$ 54,685
Concentration risk, percentage	60.10%	17.00%	11.70%	18.10%

Segment reporting - Geographic

Segment reporting - Geographic information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenue from External Customer [Line Items]
Gross premiums written	$ 49,765	$ 156,564	$ 428,125	$ 302,918
Gross Premiums Written
Revenue from External Customer [Line Items]
Gross premiums written	$ 49,765	$ 156,564	$ 428,125	$ 302,918
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
Gross Premiums Written | United States
Revenue from External Customer [Line Items]
Gross premiums written	$ 31,400	$ 1,340	$ 264,271	$ 43,769
Concentration risk, percentage	63.10%	0.80%	61.70%	14.40%
Gross Premiums Written | United Kingdom
Revenue from External Customer [Line Items]
Gross premiums written	$ 15,008	$ 150,744	$ 66,993	$ 200,594
Concentration risk, percentage	30.20%	96.30%	15.70%	66.20%
Gross Premiums Written | Bermuda
Revenue from External Customer [Line Items]
Gross premiums written	$ 3,357	$ 0	$ 73,710	$ 54,075
Concentration risk, percentage	6.70%	0.00%	17.20%	17.90%
Gross Premiums Written | Other
Revenue from External Customer [Line Items]
Gross premiums written	$ 0	$ 4,480	$ 23,151	$ 4,480
Concentration risk, percentage	0.00%	2.90%	5.40%	1.50%

Supplemental Guarantor Inform94

Supplemental Guarantor Information - Condensed Consolidating Balance Sheet (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Condensed Balance Sheet Statements, Captions [Line Items]
Total cash, cash equivalents and restricted cash	$ 587,419,000	$ 549,333,000	$ 380,323,000	$ 308,891,000
Assets
Equity securities, trading, at fair value (cost - $2,065,215; 2017 - $1,868,735)	2,427,768,000	2,283,050,000
Debt securities	617,913,000	675,158,000
Other investments, at fair value	52,444,000	37,731,000
Total investments in securities	3,098,125,000	2,995,939,000
Cash and cash equivalents	17,451,000	8,197,000
Restricted cash and cash equivalents	569,968,000	541,136,000
Investment in subsidiaries	0	0
Due from brokers	258,764,000	305,093,000
Derivative assets, at fair value	34,738,000	73,372,000
Interest and dividends receivable	4,385,000	3,774,000
Reinsurance balances receivable	631,952,000	476,008,000
Deferred acquisition costs, net	264,408,000	258,793,000
Unearned premiums ceded	17,606,000	1,049,000
Loss and loss adjustment expenses recoverable	1,414,000	1,113,000	1,713,000	1,000
Amounts due from (to) affiliates	0	0
Other assets	10,808,000	7,320,000
Total assets	4,909,619,000	4,671,794,000
Accounts payable and accrued expenses	(12,044,000)	(34,632,000)
Liabilities
Reinsurance balances payable	74,013,000	41,614,000
Deposit liabilities	129,700,000	129,133,000		104,905,000
Unearned premium reserves	792,096,000	649,518,000
Loss and loss adjustment expense reserves	791,313,000	720,570,000
Securities sold, not yet purchased, at fair value	443,216,000	394,278,000
Securities sold under an agreement to repurchase	0	29,618,000
Due to brokers	926,588,000	770,205,000
Derivative liabilities, at fair value	12,380,000	14,503,000
Due to Related Parties	(4,641,000)	0
Interest and dividends payable	5,718,000	4,275,000
Senior notes payable, net of deferred costs	113,821,000	113,733,000
Total liabilities	3,305,530,000	2,902,079,000
Redeemable noncontrolling interests in related party	7,179,000	108,219,000
Shareholders’ equity
Common shares	9,963,000	10,723,000
Treasury Stock, Value	0	(48,253,000)
Additional paid-in capital	994,170,000	1,099,599,000
Retained earnings	587,621,000	594,020,000
Shareholders’ equity attributable to Third Point Re common shareholders	1,591,754,000	1,656,089,000	1,556,323,000
Noncontrolling interests in related party	5,156,000	5,407,000
Total shareholders’ equity	1,596,910,000	1,661,496,000	1,576,132,000
Total liabilities, noncontrolling interests and shareholders’ equity	4,909,619,000	4,671,794,000
Eliminations
Condensed Balance Sheet Statements, Captions [Line Items]
Total cash, cash equivalents and restricted cash	0	0	0	0
Assets
Equity securities, trading, at fair value (cost - $2,065,215; 2017 - $1,868,735)	0	0
Debt securities	0	0
Other investments, at fair value	0	0
Total investments in securities	0	0
Cash and cash equivalents	0	0
Restricted cash and cash equivalents	0	0
Investment in subsidiaries	(2,066,872,000)	(2,096,648,000)
Due from brokers	0	0
Derivative assets, at fair value	0	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	(2,066,872,000)	(2,096,648,000)
Accounts payable and accrued expenses	0	0
Liabilities
Reinsurance balances payable	0	0
Deposit liabilities	0	0
Unearned premium reserves	0	0
Loss and loss adjustment expense reserves	0	0
Securities sold, not yet purchased, at fair value	0	0
Securities sold under an agreement to repurchase		0
Due to brokers	0	0
Derivative liabilities, at fair value	0	0
Due to Related Parties	0
Interest and dividends payable	0	0
Senior notes payable, net of deferred costs	0	0
Total liabilities	0	0
Redeemable noncontrolling interests in related party	0	0
Shareholders’ equity
Common shares	(1,239,000)	(1,250,000)
Treasury Stock, Value		0
Additional paid-in capital	(1,700,031,000)	(1,696,867,000)
Retained earnings	(365,602,000)	(398,531,000)
Shareholders’ equity attributable to Third Point Re common shareholders	(2,066,872,000)	(2,096,648,000)
Noncontrolling interests in related party	0	0
Total shareholders’ equity	(2,066,872,000)	(2,096,648,000)
Total liabilities, noncontrolling interests and shareholders’ equity	(2,066,872,000)	(2,096,648,000)
Third Point Re | Reportable Legal Entities
Condensed Balance Sheet Statements, Captions [Line Items]
Total cash, cash equivalents and restricted cash	1,000	9,000	279,000	1,629,000
Assets
Equity securities, trading, at fair value (cost - $2,065,215; 2017 - $1,868,735)	0	0
Debt securities	0	0
Other investments, at fair value	0	0
Total investments in securities	0	0
Cash and cash equivalents	1,000	9,000
Restricted cash and cash equivalents	0	0
Investment in subsidiaries	1,630,308,000	1,657,467,000
Due from brokers	0	0
Derivative assets, at fair value	0	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	(37,588,000)	(1,288,000)
Other assets	254,000	664,000
Total assets	1,592,975,000	1,656,852,000
Accounts payable and accrued expenses	(1,221,000)	(763,000)
Liabilities
Reinsurance balances payable	0	0
Deposit liabilities	0	0
Unearned premium reserves	0	0
Loss and loss adjustment expense reserves	0	0
Securities sold, not yet purchased, at fair value	0	0
Securities sold under an agreement to repurchase		0
Due to brokers	0	0
Derivative liabilities, at fair value	0	0
Due to Related Parties	0
Interest and dividends payable	0	0
Senior notes payable, net of deferred costs	0	0
Total liabilities	1,221,000	763,000
Redeemable noncontrolling interests in related party	0	0
Shareholders’ equity
Common shares	9,963,000	10,723,000
Treasury Stock, Value		(48,253,000)
Additional paid-in capital	994,170,000	1,099,599,000
Retained earnings	587,621,000	594,020,000
Shareholders’ equity attributable to Third Point Re common shareholders	1,591,754,000	1,656,089,000
Noncontrolling interests in related party	0	0
Total shareholders’ equity	1,591,754,000	1,656,089,000
Total liabilities, noncontrolling interests and shareholders’ equity	1,592,975,000	1,656,852,000
TPRUSA | Reportable Legal Entities
Condensed Balance Sheet Statements, Captions [Line Items]
Total cash, cash equivalents and restricted cash	190,000	199,000	275,000	79,000
Assets
Equity securities, trading, at fair value (cost - $2,065,215; 2017 - $1,868,735)	0	0
Debt securities	0	0
Other investments, at fair value	0	0
Total investments in securities	0	0
Cash and cash equivalents	190,000	199,000
Restricted cash and cash equivalents	0	0
Investment in subsidiaries	271,249,000	274,272,000
Due from brokers	0	0
Derivative assets, at fair value	0	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	77,000	412,000
Other assets	0	0
Total assets	271,516,000	274,883,000
Accounts payable and accrued expenses	9,663,000	8,805,000
Liabilities
Reinsurance balances payable	0	0
Deposit liabilities	0	0
Unearned premium reserves	0	0
Loss and loss adjustment expense reserves	0	0
Securities sold, not yet purchased, at fair value	0	0
Securities sold under an agreement to repurchase		0
Due to brokers	0	0
Derivative liabilities, at fair value	0	0
Due to Related Parties	0
Interest and dividends payable	3,022,000	3,055,000
Senior notes payable, net of deferred costs	113,821,000	113,733,000
Total liabilities	107,180,000	107,983,000
Redeemable noncontrolling interests in related party	0	0
Shareholders’ equity
Common shares	0	0
Treasury Stock, Value		0
Additional paid-in capital	165,535,000	165,097,000
Retained earnings	(1,199,000)	1,803,000
Shareholders’ equity attributable to Third Point Re common shareholders	164,336,000	166,900,000
Noncontrolling interests in related party	0	0
Total shareholders’ equity	164,336,000	166,900,000
Total liabilities, noncontrolling interests and shareholders’ equity	271,516,000	274,883,000
Deferred Tax Liabilities, Gross	10,000,000	9,900,000
Non-Guarantor Subsidiaries | Reportable Legal Entities
Condensed Balance Sheet Statements, Captions [Line Items]
Total cash, cash equivalents and restricted cash	587,228,000	549,125,000	$ 379,769,000	$ 307,183,000
Assets
Equity securities, trading, at fair value (cost - $2,065,215; 2017 - $1,868,735)	2,427,768,000	2,283,050,000
Debt securities	617,913,000	675,158,000
Other investments, at fair value	52,444,000	37,731,000
Total investments in securities	3,098,125,000	2,995,939,000
Cash and cash equivalents	17,260,000	7,989,000
Restricted cash and cash equivalents	569,968,000	541,136,000
Investment in subsidiaries	165,315,000	164,909,000
Due from brokers	258,764,000	305,093,000
Derivative assets, at fair value	34,738,000	73,372,000
Interest and dividends receivable	4,385,000	3,774,000
Reinsurance balances receivable	631,952,000	476,008,000
Deferred acquisition costs, net	264,408,000	258,793,000
Unearned premiums ceded	17,606,000	1,049,000
Loss and loss adjustment expenses recoverable	1,414,000	1,113,000
Amounts due from (to) affiliates	37,511,000	876,000
Other assets	10,554,000	6,656,000
Total assets	5,112,000,000	4,836,707,000
Accounts payable and accrued expenses	(20,486,000)	(42,674,000)
Liabilities
Reinsurance balances payable	74,013,000	41,614,000
Deposit liabilities	129,700,000	129,133,000
Unearned premium reserves	792,096,000	649,518,000
Loss and loss adjustment expense reserves	791,313,000	720,570,000
Securities sold, not yet purchased, at fair value	443,216,000	394,278,000
Securities sold under an agreement to repurchase		29,618,000
Due to brokers	926,588,000	770,205,000
Derivative liabilities, at fair value	12,380,000	14,503,000
Due to Related Parties	(4,641,000)
Interest and dividends payable	2,696,000	1,220,000
Senior notes payable, net of deferred costs	0	0
Total liabilities	3,197,129,000	2,793,333,000
Redeemable noncontrolling interests in related party	7,179,000	108,219,000
Shareholders’ equity
Common shares	1,239,000	1,250,000
Treasury Stock, Value		0
Additional paid-in capital	1,534,496,000	1,531,770,000
Retained earnings	366,801,000	396,728,000
Shareholders’ equity attributable to Third Point Re common shareholders	1,902,536,000	1,929,748,000
Noncontrolling interests in related party	5,156,000	5,407,000
Total shareholders’ equity	1,907,692,000	1,935,155,000
Total liabilities, noncontrolling interests and shareholders’ equity	5,112,000,000	$ 4,836,707,000
Financial Guarantee | TPRUSA
Condensed Balance Sheet Statements, Captions [Line Items]
Debt obligation	$ 115,000,000

Supplemental Guarantor Inform95

Supplemental Guarantor Information - Condensed Consolidating Statement of Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenues
Gross premiums written	$ 49,765	$ 156,564	$ 428,125	$ 302,918
Gross premiums ceded	(3,479)	(1,425)	(18,125)	(2,550)
Net premiums written	46,286	155,139	410,000	300,368
Change in net unearned premium reserves	95,207	18,419	(126,021)	11,199
Net premiums earned	141,493	173,558	283,979	311,567
Net investment income	31,175	107,325	28,967	235,835
Equity in earnings (losses) of subsidiaries	0	0	0	0
Total revenues	172,668	280,883	312,946	547,402
Expenses
Loss and loss adjustment expenses incurred, net	84,000	107,379	176,620	193,274
Acquisition costs, net	57,584	68,641	108,989	123,093
General and administrative expenses	9,696	15,014	19,177	25,586
Other expenses	3,983	2,105	7,978	5,006
Interest expense	2,051	2,051	4,080	4,077
Net foreign exchange (gains) losses	(8,847)	4,781	(2,236)	4,796
Total expenses	148,467	199,971	314,608	355,832
Income (loss) before income tax expense	24,201	80,912	(1,662)	191,570
Income tax expense	(4,390)	(5,307)	(4,518)	(10,605)
Net income (loss)	19,811	75,605	(6,180)	180,965
Net income attributable to noncontrolling interests in related party	(209)	(1,027)	(219)	(2,201)
Net income (loss) available to Third Point Re common shareholders	19,602	74,578	(6,399)	178,764
Eliminations
Revenues
Gross premiums written	0	0	0	0
Gross premiums ceded	0	0	0	0
Net premiums written	0	0	0	0
Change in net unearned premium reserves	0	0	0	0
Net premiums earned	0	0	0	0
Net investment income	0	0	0	0
Equity in earnings (losses) of subsidiaries	(23,153)	(80,676)	2,829	(195,040)
Total revenues	(23,153)	(80,676)	2,829	(195,040)
Expenses
Loss and loss adjustment expenses incurred, net	0	0	0	0
Acquisition costs, net	0	0	0	0
General and administrative expenses	0	0	0	0
Other expenses	0	0	0	0
Interest expense	0	0	0	0
Net foreign exchange (gains) losses	0	0	0	0
Total expenses	0	0	0	0
Income (loss) before income tax expense	(23,153)	(80,676)	2,829	(195,040)
Income tax expense	0	0	0	0
Net income (loss)	(23,153)	(80,676)	2,829	(195,040)
Net income attributable to noncontrolling interests in related party	0	0	0	0
Net income (loss) available to Third Point Re common shareholders	(23,153)	(80,676)	2,829	(195,040)
Third Point Re | Reportable Legal Entities
Revenues
Gross premiums written	0	0	0	0
Gross premiums ceded	0	0	0	0
Net premiums written	0	0	0	0
Change in net unearned premium reserves	0	0	0	0
Net premiums earned	0	0	0	0
Net investment income	0	0	0	0
Equity in earnings (losses) of subsidiaries	21,319	75,843	(3,038)	181,213
Total revenues	21,319	75,843	(3,038)	181,213
Expenses
Loss and loss adjustment expenses incurred, net	0	0	0	0
Acquisition costs, net	0	0	0	0
General and administrative expenses	1,717	1,265	3,361	2,449
Other expenses	0	0	0	0
Interest expense	0	0	0	0
Net foreign exchange (gains) losses	0	0	0	0
Total expenses	1,717	1,265	3,361	2,449
Income (loss) before income tax expense	19,602	74,578	(6,399)	178,764
Income tax expense	0	0	0	0
Net income (loss)	19,602	74,578	(6,399)	178,764
Net income attributable to noncontrolling interests in related party	0	0	0	0
Net income (loss) available to Third Point Re common shareholders	19,602	74,578	(6,399)	178,764
TPRUSA | Reportable Legal Entities
Revenues
Gross premiums written	0	0	0	0
Gross premiums ceded	0	0	0	0
Net premiums written	0	0	0	0
Change in net unearned premium reserves	0	0	0	0
Net premiums earned	0	0	0	0
Net investment income	0	0	0	0
Equity in earnings (losses) of subsidiaries	1,847	4,843	239	13,832
Total revenues	1,847	4,843	239	13,832
Expenses
Loss and loss adjustment expenses incurred, net	0	0	0	0
Acquisition costs, net	0	0	0	0
General and administrative expenses	19	12	22	20
Other expenses	0	0	0	0
Interest expense	2,051	2,051	4,080	4,077
Net foreign exchange (gains) losses	0	0	0	0
Total expenses	2,070	2,063	4,102	4,097
Income (loss) before income tax expense	(223)	2,780	(3,863)	9,735
Income tax expense	435	722	861	1,434
Net income (loss)	212	3,502	(3,002)	11,169
Net income attributable to noncontrolling interests in related party	0	0	0	0
Net income (loss) available to Third Point Re common shareholders	212	3,502	(3,002)	11,169
Non-Guarantor Subsidiaries | Reportable Legal Entities
Revenues
Gross premiums written	49,765	156,564	428,125	302,918
Gross premiums ceded	(3,479)	(1,425)	(18,125)	(2,550)
Net premiums written	46,286	155,139	410,000	300,368
Change in net unearned premium reserves	95,207	18,419	(126,021)	11,199
Net premiums earned	141,493	173,558	283,979	311,567
Net investment income	31,175	107,325	28,967	235,835
Equity in earnings (losses) of subsidiaries	(13)	(10)	(30)	(5)
Total revenues	172,655	280,873	312,916	547,397
Expenses
Loss and loss adjustment expenses incurred, net	84,000	107,379	176,620	193,274
Acquisition costs, net	57,584	68,641	108,989	123,093
General and administrative expenses	7,960	13,737	15,794	23,117
Other expenses	3,983	2,105	7,978	5,006
Interest expense	0	0	0	0
Net foreign exchange (gains) losses	(8,847)	4,781	(2,236)	4,796
Total expenses	144,680	196,643	307,145	349,286
Income (loss) before income tax expense	27,975	84,230	5,771	198,111
Income tax expense	(4,825)	(6,029)	(5,379)	(12,039)
Net income (loss)	23,150	78,201	392	186,072
Net income attributable to noncontrolling interests in related party	(209)	(1,027)	(219)	(2,201)
Net income (loss) available to Third Point Re common shareholders	$ 22,941	$ 77,174	$ 173	$ 183,871

Supplemental Guarantor Inform96

Supplemental Guarantor Information - Condensed Consolidating Statement of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Operating activities
Net income (loss)	$ 19,811	$ 75,605	$ (6,180)	$ 180,965
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Equity in earnings of subsidiaries			0	0
Share compensation expense			2,558	3,374
Net interest expense on deposit liabilities			2,449	312
Net unrealized (gain) loss on investments and derivatives			95,513	(128,168)
Net realized gain on investments and derivatives			(130,500)	(154,504)
Net foreign exchange (gains) losses	(8,847)	4,781	(2,236)	4,796
Amortization of premium and accretion of discount, net			2,913	(122)
Changes in assets and liabilities:
Reinsurance balances receivable			(157,498)	(85,733)
Deferred acquisition costs, net			(5,615)	18,425
Unearned premiums ceded			(16,557)	(1,938)
Loss and loss adjustment expenses recoverable			(301)	(1,712)
Other assets			(3,537)	6,158
Interest and dividends receivable, net			832	2,953
Unearned premium reserves			142,578	(9,261)
Loss and loss adjustment expense reserves			(74,655)	(63,769)
Accounts payable and accrued expenses			(22,564)	7,549
Reinsurance balances payable			32,208	22,237
Performance fees payable to related party			4,641	53,455
Increase (Decrease) in Due to Affiliates			0	0
Net cash provided by (used in) operating activities			13,359	(17,445)
Investing activities
Purchases of investments			(2,180,138)	(1,712,929)
Proceeds from sales of investments			2,156,754	1,966,027
Purchases of investments to cover short sales			(590,113)	(306,237)
Proceeds from short sales of investments			628,913	462,066
Change in due to/from brokers, net			202,712	(261,994)
Decrease in securities sold under an agreement to repurchase			(29,618)	0
Net cash provided by investing activities			188,510	146,933
Financing activities
Proceeds from issuance of Third Point Re common shares, net of costs			0	998
Taxes paid on withholding shares			(74)	0
Purchases of Third Point Re common shares under share repurchase program			(60,420)	(40,864)
Decrease in deposit liabilities, net			(1,779)	(124)
Change in total noncontrolling interests in related party, net			(101,510)	(18,066)
Dividend received by (paid to) parent			0	0
Net cash used in financing activities			(163,783)	(58,056)
Net increase in cash, cash equivalents and restricted cash			38,086	71,432
Cash, cash equivalents and restricted cash at beginning of period			549,333	308,891
Eliminations
Operating activities
Net income (loss)	(23,153)	(80,676)	2,829	(195,040)
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Equity in earnings of subsidiaries			(2,829)	195,040
Share compensation expense			0	0
Net interest expense on deposit liabilities			0	0
Net unrealized (gain) loss on investments and derivatives			0	0
Net realized gain on investments and derivatives			0	0
Net foreign exchange (gains) losses	0	0	0	0
Amortization of premium and accretion of discount, net			0	0
Changes in assets and liabilities:
Reinsurance balances receivable			0	0
Deferred acquisition costs, net			0	0
Unearned premiums ceded			0	0
Loss and loss adjustment expenses recoverable			0	0
Other assets			0	0
Interest and dividends receivable, net			0	0
Unearned premium reserves			0	0
Loss and loss adjustment expense reserves			0	0
Accounts payable and accrued expenses			0	0
Reinsurance balances payable			0	0
Performance fees payable to related party			0	0
Increase (Decrease) in Due to Affiliates			0	0
Net cash provided by (used in) operating activities			0	0
Investing activities
Purchases of investments			0	0
Proceeds from sales of investments			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
Decrease in securities sold under an agreement to repurchase			0
Net cash provided by investing activities			0	0
Financing activities
Proceeds from issuance of Third Point Re common shares, net of costs			0	0
Taxes paid on withholding shares			0
Purchases of Third Point Re common shares under share repurchase program			0	0
Decrease in deposit liabilities, net			0	0
Change in total noncontrolling interests in related party, net			0	0
Dividend received by (paid to) parent			0	0
Net cash used in financing activities			0	0
Net increase in cash, cash equivalents and restricted cash			0	0
Cash, cash equivalents and restricted cash at beginning of period			0	0
Third Point Re | Reportable Legal Entities
Operating activities
Net income (loss)	19,602	74,578	(6,399)	178,764
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Equity in earnings of subsidiaries			3,038	(181,213)
Share compensation expense			279	73
Net interest expense on deposit liabilities			0	0
Net unrealized (gain) loss on investments and derivatives			0	0
Net realized gain on investments and derivatives			0	0
Net foreign exchange (gains) losses	0	0	0	0
Amortization of premium and accretion of discount, net			0	0
Changes in assets and liabilities:
Reinsurance balances receivable			0	0
Deferred acquisition costs, net			0	0
Unearned premiums ceded			0	0
Loss and loss adjustment expenses recoverable			0	0
Other assets			410	302
Interest and dividends receivable, net			0	0
Unearned premium reserves			0	0
Loss and loss adjustment expense reserves			0	0
Accounts payable and accrued expenses			458	67
Reinsurance balances payable			0	0
Performance fees payable to related party			0	0
Increase (Decrease) in Due to Affiliates			36,300	40,523
Net cash provided by (used in) operating activities			34,086	38,516
Investing activities
Purchases of investments			0	0
Proceeds from sales of investments			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
Decrease in securities sold under an agreement to repurchase			0
Net cash provided by investing activities			0	0
Financing activities
Proceeds from issuance of Third Point Re common shares, net of costs			0	998
Taxes paid on withholding shares			(74)
Purchases of Third Point Re common shares under share repurchase program			(60,420)	(40,864)
Decrease in deposit liabilities, net			0	0
Change in total noncontrolling interests in related party, net			0	0
Dividend received by (paid to) parent			26,400	0
Net cash used in financing activities			(34,094)	(39,866)
Net increase in cash, cash equivalents and restricted cash			(8)	(1,350)
Cash, cash equivalents and restricted cash at beginning of period			9	1,629
TPRUSA | Reportable Legal Entities
Operating activities
Net income (loss)	212	3,502	(3,002)	11,169
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Equity in earnings of subsidiaries			(239)	(13,832)
Share compensation expense			0	0
Net interest expense on deposit liabilities			0	0
Net unrealized (gain) loss on investments and derivatives			0	0
Net realized gain on investments and derivatives			0	0
Net foreign exchange (gains) losses	0	0	0	0
Amortization of premium and accretion of discount, net			88	88
Changes in assets and liabilities:
Reinsurance balances receivable			0	0
Deferred acquisition costs, net			0	0
Unearned premiums ceded			0	0
Loss and loss adjustment expenses recoverable			0	0
Other assets			0	(1,663)
Interest and dividends receivable, net			(33)	(35)
Unearned premium reserves			0	0
Loss and loss adjustment expense reserves			0	0
Accounts payable and accrued expenses			(858)	0
Reinsurance balances payable			0	0
Performance fees payable to related party			0	0
Increase (Decrease) in Due to Affiliates			335	(3,831)
Net cash provided by (used in) operating activities			(3,709)	(8,104)
Investing activities
Purchases of investments			0	0
Proceeds from sales of investments			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
Decrease in securities sold under an agreement to repurchase			0
Net cash provided by investing activities			0	0
Financing activities
Proceeds from issuance of Third Point Re common shares, net of costs			0	0
Taxes paid on withholding shares			0
Purchases of Third Point Re common shares under share repurchase program			0	0
Decrease in deposit liabilities, net			0	0
Change in total noncontrolling interests in related party, net			0	0
Dividend received by (paid to) parent			3,700	8,300
Net cash used in financing activities			3,700	8,300
Net increase in cash, cash equivalents and restricted cash			(9)	196
Cash, cash equivalents and restricted cash at beginning of period			199	79
Non-Guarantor Subsidiaries | Reportable Legal Entities
Operating activities
Net income (loss)	23,150	78,201	392	186,072
Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities:
Equity in earnings of subsidiaries			30	5
Share compensation expense			2,279	3,301
Net interest expense on deposit liabilities			2,449	312
Net unrealized (gain) loss on investments and derivatives			95,513	(128,168)
Net realized gain on investments and derivatives			(130,500)	(154,504)
Net foreign exchange (gains) losses	$ (8,847)	$ 4,781	(2,236)	4,796
Amortization of premium and accretion of discount, net			2,825	(210)
Changes in assets and liabilities:
Reinsurance balances receivable			(157,498)	(85,733)
Deferred acquisition costs, net			(5,615)	18,425
Unearned premiums ceded			(16,557)	(1,938)
Loss and loss adjustment expenses recoverable			(301)	(1,712)
Other assets			(3,947)	7,519
Interest and dividends receivable, net			865	2,988
Unearned premium reserves			142,578	(9,261)
Loss and loss adjustment expense reserves			(74,655)	(63,769)
Accounts payable and accrued expenses			(22,164)	7,482
Reinsurance balances payable			32,208	22,237
Performance fees payable to related party			4,641	53,455
Increase (Decrease) in Due to Affiliates			(36,635)	(36,692)
Net cash provided by (used in) operating activities			(17,018)	(47,857)
Investing activities
Purchases of investments			(2,180,138)	(1,712,929)
Proceeds from sales of investments			2,156,754	1,966,027
Purchases of investments to cover short sales			(590,113)	(306,237)
Proceeds from short sales of investments			628,913	462,066
Change in due to/from brokers, net			202,712	(261,994)
Decrease in securities sold under an agreement to repurchase			(29,618)
Net cash provided by investing activities			188,510	146,933
Financing activities
Proceeds from issuance of Third Point Re common shares, net of costs			0	0
Taxes paid on withholding shares			0
Purchases of Third Point Re common shares under share repurchase program			0	0
Decrease in deposit liabilities, net			(1,779)	(124)
Change in total noncontrolling interests in related party, net			(101,510)	(18,066)
Dividend received by (paid to) parent			(30,100)	(8,300)
Net cash used in financing activities			(133,389)	(26,490)
Net increase in cash, cash equivalents and restricted cash			38,103	72,586
Cash, cash equivalents and restricted cash at beginning of period			$ 549,125	$ 307,183

Subsequent events (Details)

Subsequent events (Details) - USD ($)	Jul. 31, 2018	Jun. 30, 2018	Dec. 31, 2017	Jun. 30, 2017
Subsequent Event [Line Items]
Total investments in securities		$ 3,098,125,000	$ 2,995,939,000
Total assets		4,909,619,000	4,671,794,000
Total liabilities		3,305,530,000	2,902,079,000
Shareholders’ equity attributable to Third Point Re common shareholders		1,591,754,000	1,656,089,000	$ 1,556,323,000
Total shareholders’ equity		1,596,910,000	$ 1,661,496,000	$ 1,576,132,000
Pro Forma [Member]
Subsequent Event [Line Items]
Total investments in securities		1,991,129,000
Total assets		3,504,693,000
Total liabilities		1,912,939,000
Shareholders’ equity attributable to Third Point Re common shareholders		1,591,754,000
Total shareholders’ equity		$ 1,591,754,000
Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Amount borrowed under revolving credit facility	$ 200,000,000
Collateral Fees Percentage	1.50%
Commitment Fee Percentage	0.20%
Minimum Net Worth Covenant	$ 1,114.2
Debt [Member] | Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Debt to Equity Ratio Covenant	35.00%
Stockholders' Equity, Total [Member] | Revolving Credit Facility [Member]
Subsequent Event [Line Items]
Debt to Equity Ratio Covenant	100.00%