SiriusPoint (SPNT) 10-Q 8 Aug 14 2014 Q2 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	6 Months Ended
	Jun. 30, 2014	Aug. 08, 2014
Document and Entity Information [Abstract]	'	'
Entity Registrant Name	'Third Point Reinsurance Ltd.	'
Entity Central Index Key	'0001576018	'
Current Fiscal Year End Date	'--12-31	'
Entity Filer Category	'Non-accelerated Filer	'
Document Type	'10-Q	'
Document Period End Date	30-Jun-14	'
Document Fiscal Year Focus	'2014	'
Document Fiscal Period Focus	'Q2	'
Amendment Flag	'false	'
Entity Common Stock, Shares Outstanding	'	103,971,456

Condensed_Consolidated_Balance

Condensed Consolidated Balance Sheets (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Assets	'	'
Equity securities, trading, at fair value (cost - $1,035,700; 2013 - $824,723)	$1,162,363	$954,111
Debt securities, trading, at fair value (cost - $494,101; 2013 - $408,754)	551,453	441,424
Other investments, at fair value	93,412	65,329
Total investments in securities and commodities	1,807,228	1,460,864
Cash and cash equivalents	35,977	31,625
Restricted cash and cash equivalents	222,124	193,577
Due from brokers	74,046	98,386
Securities purchased under an agreement to sell	33,850	38,147
Derivative assets, at fair value	22,516	39,045
Interest and dividends receivable	3,747	2,615
Reinsurance balances receivable	245,832	191,763
Deferred acquisition costs, net	130,860	91,193
Loss and loss adjustment expenses recoverable	10,274	9,277
Other assets	3,283	3,398
Total assets	2,589,737	2,159,890
Liabilities	'	'
Accounts payable and accrued expenses	5,456	9,456
Reinsurance balances payable	26,856	9,081
Deposit liabilities	121,959	120,946
Unearned premium reserves	346,271	265,187
Loss and loss adjustment expense reserves	184,627	134,331
Securities sold, not yet purchased, at fair value	46,994	56,056
Due to brokers	281,091	44,870
Derivative liabilities, at fair value	10,528	8,819
Performance fee payable to related party	22,002	0
Interest and dividends payable	816	748
Total liabilities	1,046,600	649,494
Commitments and contingent liabilities	0	0
Shareholders' equity	'	'
Preference shares (par value $0.10; authorized, 30,000,000; none issued)	0	0
Common shares (par value $0.10; authorized, 300,000,000; issued and outstanding, 103,931,386 (2013: 103,888,916))	10,393	10,389
Additional paid-in capital	1,060,183	1,055,690
Retained earnings	396,653	325,582
Shareholders’ equity attributable to shareholders	1,467,229	1,391,661
Non-controlling interests	75,908	118,735
Total shareholders' equity	1,543,137	1,510,396
Total liabilities and shareholders' equity	$2,589,737	$2,159,890

Condensed_Consolidated_Balance1

Condensed Consolidated Balance Sheets (Parenthetical) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, except Share data, unless otherwise specified
Assets	'	'
Equity securities, trading, cost	$1,035,700	$824,723
Debt securities, trading, cost	$494,101	$408,754
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)	103,931,386	103,888,916
Common share, shares outstanding (in shares)	103,931,386	103,888,916

Condensed_Consolidated_Stateme

Condensed Consolidated Statements of Income (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenues	'	'	'	'
Gross premiums written	$145,508	$98,215	$233,095	$194,235
Gross premiums ceded	0	0	0	-9,975
Net premiums written	145,508	98,215	233,095	184,260
Change in net unearned premium reserves	-66,758	-35,928	-81,083	-88,432
Net premiums earned	78,750	62,287	152,012	95,828
Net investment income	40,485	32,826	90,520	114,187
Total revenues	119,235	95,113	242,532	210,015
Expenses	'	'	'	'
Loss and loss adjustment expenses incurred, net	44,409	45,692	90,668	64,330
Acquisition costs, net	29,583	14,921	55,014	27,994
General and administrative expenses	9,549	7,217	19,574	14,225
Other expenses	1,020	759	1,807	1,429
Total expenses	84,561	68,589	167,063	107,978
Income before income tax expense	34,674	26,524	75,469	102,037
Income tax expense	-2,375	0	-2,375	0
Income including non-controlling interests	32,299	26,524	73,094	102,037
Income attributable to non-controlling interests	-1,007	-301	-2,023	-1,384
Net income	$31,292	$26,223	$71,071	$100,653
Earnings per share	'	'	'	'
Basic (in dollars per share)	$0.30	$0.33	$0.68	$1.27
Diluted (in dollars per share)	$0.29	$0.33	$0.66	$1.26
Weighted average number of common shares used in the determination of earnings per share	'	'	'	'
Basic (in shares)	103,264,616	78,432,132	103,264,616	78,432,132
Diluted (in shares)	106,433,881	79,254,268	106,505,715	79,147,972

Condensed_Consolidated_Stateme1

Condensed Consolidated Statements of Shareholders' Equity (USD $)	Total	Common shares	Additional paid-in capital	Retained earnings	Shareholders' equity attributable to shareholders	Non-controlling interests
In Thousands, except Share data, unless otherwise specified
Balance, beginning of period at Dec. 31, 2012	'	$7,843	$762,430	$98,271	'	$59,777
Balance, beginning of period (in shares) at Dec. 31, 2012	'	78,432,132	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'
Issuance of common shares (in shares)	'	0	'	'	'	'
Issuance of common shares	'	0	0	'	'	'
Share compensation expense	'	'	3,468	'	'	'
Net income	100,653	'	'	100,653	'	'
Income attributable to non-controlling interests	102,037	'	'	'	'	1,384
Contributions	'	'	'	'	'	26,164
Distributions	'	'	'	'	'	-35,129
Balance, end of period at Jun. 30, 2013	1,024,861	7,843	765,898	198,924	972,665	52,196
Balance, end of period (in shares) at Jun. 30, 2013	'	78,432,132	'	'	'	'
Balance, beginning of period at Dec. 31, 2013	1,510,396	10,389	1,055,690	325,582	'	118,735
Balance, beginning of period (in shares) at Dec. 31, 2013	'	103,888,916	'	'	'	'
Increase (Decrease) in Stockholders' Equity [Roll Forward]	'	'	'	'	'	'
Issuance of common shares (in shares)	'	42,470	'	'	'	'
Issuance of common shares	'	4	-5	'	'	'
Share compensation expense	'	'	4,498	'	'	'
Net income	71,071	'	'	71,071	'	'
Income attributable to non-controlling interests	73,094	'	'	'	'	2,023
Contributions	'	'	'	'	'	6,151
Distributions	'	'	'	'	'	-51,001
Balance, end of period at Jun. 30, 2014	$1,543,137	$10,393	$1,060,183	$396,653	$1,467,229	$75,908
Balance, end of period (in shares) at Jun. 30, 2014	'	103,931,386	'	'	'	'

Condensed_Consolidated_Stateme2

Condensed Consolidated Statements of Cash Flows (USD $)	6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013
Statement of Cash Flows [Abstract]	'	'
Net income	$71,071	$100,653
Adjustments to reconcile net income to net cash provided by operating activities:	'	'
Share compensation expense	4,498	3,468
Interest expense on deposit liabilities	1,044	0
Net unrealized loss (gain) on investments and derivatives	5,175	-22,065
Net realized gain on investments and derivatives	-131,308	-112,895
Amortization of premium and accretion of discount, net	1,292	-2,507
Changes in assets and liabilities:	'	'
Reinsurance balances receivable	-54,069	-97,239
Deferred acquisition costs, net	-39,667	-24,879
Unearned premiums ceded	0	-4,988
Loss and loss adjustment expenses recoverable	-997	-4,190
Other assets	115	-2,137
Interest and dividends receivable, net	-1,064	-145
Unearned premium reserves	81,084	93,420
Loss and loss adjustment expense reserves	50,296	45,829
Accounts payable and accrued expenses	-4,000	47
Reinsurance balances payable	17,775	8,579
Performance fee payable to related party	22,002	27,229
Net cash provided by operating activities	23,247	8,180
Investing activities	'	'
Purchases of investments	-1,462,226	-967,225
Proceeds from sales of investments	1,245,348	1,127,171
Purchases of investments to cover short sales	-97,112	-272,740
Proceeds from short sales of investments	101,861	162,394
Change in due to/from brokers, net	260,561	-45,142
Increase in securities purchased under an agreement to sell	4,297	20,053
Non-controlling interest in investment affiliate	-49,507	-33,500
Change in restricted cash and cash equivalents	-28,547	-52,942
Net cash used in investing activities	-25,325	-61,931
Financing activities	'	'
Increase (decrease) in deposit liabilities	-250	26,429
Non-controlling interest in Catastrophe Fund	6,770	26,081
Non-controlling interest in Catastrophe Fund Manager	-90	-162
Net cash provided by financing activities	6,430	52,348
Net increase (decrease) in cash and cash equivalents	4,352	-1,403
Cash and cash equivalents at beginning of period	31,625	34,005
Cash and cash equivalents at end of period	35,977	32,602
Supplementary information	'	'
Interest paid in cash	944	1,859
Income tax paid in cash	$911	$0

Organization

Organization	6 Months Ended
	Jun. 30, 2014
Organization, Consolidation and Presentation of Financial Statements [Abstract]	'
Organization	'
	Organization
	Third Point Reinsurance Ltd. (the “Company”) was incorporated as an exempted company under the laws of Bermuda on October 6, 2011 and, through its wholly-owned subsidiary Third Point Reinsurance Company Ltd. (“Third Point Re”), is a provider of global specialty property and casualty reinsurance products. Third Point Re was incorporated in Bermuda and is registered as a Class 4 insurer under the Insurance Act 1978, as amended, and related regulations (the “Act”). Third Point Re commenced reinsurance operations in January 2012.
	On June 15, 2012, Third Point Reinsurance Opportunities Fund Ltd. (the “Catastrophe Fund”), Third Point Reinsurance Investment Management Ltd. (the “Catastrophe Fund Manager”), and Third Point Re Cat Ltd. (the “Catastrophe Reinsurer”) were incorporated in Bermuda. The Company subsequently announced a strategic arrangement with Hiscox Insurance Company (Bermuda) Limited (“Hiscox”) to launch a collateralized catastrophe reinsurance underwriting fund management business. The Catastrophe Fund Manager, a Bermuda exempted company, is the investment manager of the Catastrophe Fund and is 85% owned by Third Point Re and 15% owned by Hiscox. The Catastrophe Fund Manager is responsible for the investment and management of the Catastrophe Fund’s assets. The Catastrophe Fund is an exempted company incorporated in Bermuda and is open to both related party and third party investors. The Catastrophe Fund Manager also acts as manager of the Catastrophe Reinsurer and, in this capacity, is responsible for overseeing the underwriting and investment activities of the Catastrophe Reinsurer. The Catastrophe Reinsurer is a Bermuda exempted company and is licensed as a special purpose insurer under the Act.
	On August 2, 2012, the Company established a wholly-owned subsidiary in the United Kingdom, Third Point Re Marketing (UK) Limited (“TPRUK”). On May 20, 2013, TPRUK was licensed as an insurance intermediary by the UK Financial Conduct Authority.
	On August 20, 2013, the Company completed an initial public offering (“IPO”) of 24,832,484 common shares at an offering price of $12.50 per share. The net proceeds of the offering were $286.0 million, after deducting offering costs. The Company's common shares are listed on the New York Stock Exchange under the symbol “TPRE”.
	These unaudited condensed consolidated financial statements include the results of the Company and its wholly and majority 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, 2013, as filed with the U.S. Securities and Exchange Commission on February 28, 2014.
	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, 2014 are not necessarily indicative of the results expected for the full calendar year.

Significant_accounting_policie

Significant accounting policies	6 Months Ended
	Jun. 30, 2014
Accounting Policies [Abstract]	'
Significant accounting policies	'
	Significant accounting policies
	The following is a summary of the significant accounting and reporting policies adopted by the Company:
	Use of estimates
	The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported and disclosed amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The major estimates reflected in the Company’s condensed consolidated financial statements include, but are not limited to, the loss and loss adjustment expense reserves, estimates of written and earned premiums and fair value of financial instruments.
	Cash and restricted cash and cash equivalents
	Cash and cash equivalents consist of cash held in banks and other short-term, highly liquid investments with original maturity dates of ninety days or less.
	Restricted cash and cash equivalents consist of cash held in trust accounts with the Catastrophe Reinsurer, securing collateralized reinsurance contracts written and cash held with brokers securing letters of credit issued under credit facilities.
	Premium revenue recognition
	To the extent that the amount of written premium is estimable, the Company estimates the ultimate premiums for the entire contract period and records this estimate at the inception of the contract. For contracts where the full written premium is not estimable at inception, the Company records written premium for the portion of the contract period for which the amount is estimable. These estimates are based primarily on information in the underlying contracts as well as information provided by clients and/or brokers.
	Premiums written are earned over the exposure period in proportion to the period of risk covered. Unearned premiums represent the portion of premiums written that relate to the remaining term of the underlying policies in force.
	Premiums for retroactive reinsurance contracts are earned at the inception of the contract, as all of the underlying loss events covered by these contracts occurred in the past. Any underwriting profit at inception of a retroactive reinsurance contract is deferred and recognised over the estimated future payout of the loss and loss adjustment expenses reserves. Any underwriting loss at inception of a retroactive reinsurance contract is recognised immediately.
	Changes in premium estimates are expected and may result in adjustments in any reporting period. These estimates change over time as additional information regarding the underlying business volume is obtained. Any subsequent adjustments arising on such estimates are recorded in the period in which they are determined.
	Reinsurance premiums ceded
	From time to time the Company reduces the risk of losses on business written by reinsuring certain risks and exposures with other reinsurers. The Company remains liable to the extent that any retrocessionaire fails to meet its obligations and to the extent that the Company does not hold sufficient security for their unpaid obligations. Ceded premiums are written during the period in which the risks incept and are expensed over the contract period in proportion to the period of risk covered. Unearned premiums ceded consist of the unexpired portion of reinsurance ceded.
	Deferred acquisition costs
	Acquisition costs consist of commissions, brokerage and excise taxes that are related directly to the successful acquisition of new or renewal reinsurance contracts. These costs are deferred and amortized over the period in which the related premiums are earned. The Company evaluates the recoverability of deferred acquisition costs by determining if the sum of future earned premiums and anticipated investment income is greater than expected future loss and loss adjustment expenses and acquisition costs. If a loss is probable on the unexpired portion of contracts in force, a premium deficiency loss is recognized. As of June 30, 2014, deferred acquisition costs are considered to be fully recoverable and no premium deficiency has been recorded.
	Acquisition costs also include profit commissions that are expensed when incurred. Profit commissions are calculated and accrued based on the expected loss experience for contracts and recorded when the current loss estimate indicates that a profit commission is probable under the contract terms.
	Loss and loss adjustment expense reserves
	The Company’s loss and loss adjustment expense reserves include case reserves and reserves for losses incurred but not yet reported (“IBNR reserves”). Case reserves are established for losses that have been reported, but not yet paid, based on loss reports from brokers and ceding companies. IBNR reserves represent the estimated loss and loss adjustment expenses that have been incurred by insureds and reinsureds but not yet reported to the insurer or reinsurer, including unknown future developments on loss and loss adjustment expenses that are known to the insurer or reinsurer. IBNR reserves are established by management based on actuarially determined estimates of ultimate loss and loss adjustment expenses.
	Inherent in the estimate of ultimate loss and loss adjustment expenses are expected trends in claim severity and frequency and other factors that may vary significantly as claims are settled. Accordingly, ultimate loss and loss adjustment expenses may differ materially from the amounts recorded in the condensed consolidated financial statements. These estimates are reviewed regularly and, as experience develops and new information becomes known, the reserves are adjusted as necessary. Such adjustments, if any, are recorded in the condensed consolidated statements of income in the period in which they become known.
	Deposit liabilities
	Certain contracts do not transfer sufficient insurance risk to be deemed reinsurance contracts and are accounted for using the deposit method of accounting. Management exercises judgment in determining whether contracts transfer sufficient risk to be accounted for as reinsurance contracts. Using the deposit method of accounting, a deposit liability, rather than written premium, is initially recorded based upon the consideration received less any explicitly identified premiums or fees. In subsequent periods, the deposit liability is adjusted by calculating the effective yield on the deposit to reflect actual payments to date and future expected payments.
	Fair value measurement
	The Company determines the fair value of financial instruments in accordance with current accounting guidance, which defines fair value and establishes a three level fair value hierarchy based upon the transparency of inputs used in the valuation of an asset or liability. Fair value is defined as the price the Company would receive to sell an asset or would pay to transfer a liability in an orderly transaction between market participants at the measurement date. The Company determines the estimated fair value of each individual security utilizing the highest level inputs available.
	The fair value of the Company’s assets and liabilities, which qualify as financial instruments, approximates the carrying amounts presented in the condensed consolidated balance sheets.
	Investments
	The Company’s investments are classified as “trading securities” and are carried at fair value with changes in fair value included in earnings in the condensed consolidated statements of income.
	The fair value of the Company’s investments are based on quoted market prices, or when such prices are not available, by reference to broker or underwriter bid indications and/or internal pricing valuation techniques. Investment transactions are recorded on a trade date basis with balances pending settlement included in due to/from brokers in the condensed consolidated balance sheets.
	Realized gains and losses are determined using cost calculated on the specific identification basis. Dividends are recorded on the ex-dividend date. Income and expense are recorded on the accrual basis including interest and premiums amortized and discounts accreted.
	Derivatives
	Underwriting
	The Catastrophe Reinsurer enters into certain contracts for which the potential loss payments are triggered exclusively by reference to a specified index, such as an industry loss. These contracts are accounted for as derivatives. The Company records the fair value of these contracts in derivative liabilities, at fair value, in the condensed consolidated balance sheets. Changes in the fair value of these contracts are recorded in net investment income in the condensed consolidated statements of income.
	Investments
	Derivative instruments within our separate account managed by our investment manager, Third Point LLC, are recorded in the condensed consolidated balance sheets at fair value, with changes in fair values and realized gains and losses recognized in net investment income in the condensed consolidated statements of income.
	Derivatives serve as a key component of the Company’s investment strategy and are utilized primarily to structure the portfolio, or individual investments, and to economically match the investment objectives of the Company. The Company's derivatives do not qualify as hedges for financial reporting purposes and are recorded in the condensed consolidated balance sheets on a gross basis and not offset against any collateral pledged or received. Pursuant to the International Swaps and Derivatives Association ("ISDA") master agreements, securities lending agreements and other derivatives agreements, the Company and its counterparties typically have the ability to net certain payments owed to each other in specified circumstances. In addition, in the event a party to one of the ISDA master agreements, securities lending agreements or other derivatives agreements defaults, or a transaction is otherwise subject to termination, the non-defaulting party generally has the right to set off against payments owed to the defaulting party or collateral held by the non defaulting party.
	The Company enters into derivative contracts to manage credit risk, interest rate risk, currency exchange risk, and other exposure risks. The Company uses derivatives in connection with its risk-management activities to economically hedge certain risks and to gain exposure to certain investments. The utilization of derivative contracts also allows for an efficient means by which to trade certain asset classes.
	Fair values of derivatives are determined by using quoted market prices and broker quotes when available; otherwise fair values are based on pricing models that consider the time value of money, volatility, and the current market and contractual prices of underlying financial instruments.
	Embedded derivatives
	Certain of the Company’s deposit and reinsurance contracts contain interest crediting features that vary based on the net investment return on investments managed by Third Point LLC. These contractual features are considered embedded derivatives in accordance with U.S. GAAP. We include the estimated fair value of these embedded derivatives in the condensed consolidated balance sheets with the host contract in order to reflect the expected settlement of these features with the host contract. Prior to 2014, the changes in estimated fair value of these embedded derivatives were recorded in net investment income. As these embedded derivatives have become more prominent, the presentation has been modified and changes in the estimated fair value of embedded derivatives are now recorded in other expenses in the condensed consolidated statements of income. In addition, fixed interest crediting features on these contracts that were recorded in net investment income are now classified in other expenses in the condensed consolidated statements of income. As a result, investment expense of $0.8 million and $1.4 million that was previously reported in net investment income for the three and six months ended June 30, 2013, respectively, is now being reported in other expenses to conform to the current year presentation.
	Share-based compensation
	The Company accounts for its share-based compensation transactions using the fair value of the award at the grant date. Determining the fair value of share purchase options at the grant date requires estimation and judgment. The Company uses an option-pricing model (Black-Scholes) to calculate the fair value of share purchase options.
	For share purchase options granted that contain both a service and performance condition, the Company recognizes share compensation expense only for the portion of the options that are considered probable of being exercised. Share compensation for share purchase options considered probable of being exercised is expensed over the service (vesting) period on a graded vesting basis. The probability of share purchase options being exercised is evaluated at each reporting period.  When the share purchase options are considered probable of being exercised, the Company records a catch up of share compensation expense from the grant date (service inception date for existing options) to the current reporting period end based on the fair value of the options at the grant date.
	The Company measures grant date fair value for restricted share awards based on the price of its common shares at the grant date and the expense is recognised on a straight-line basis over the vesting period.
	Warrants
	The Company accounts for certain warrant contracts issued to certain of its founding investors ("Founders") in conjunction with the initial capitalization of the Company, and which it may settle by using either the physical settlement or net-share settlement methods. The fair value of these warrants was recorded in equity as additional paid-in capital. The fair value of warrants issued are estimated on the grant date using the Black-Scholes option-pricing model.
	The Company accounts for certain warrant contracts issued to an advisor, where services have been received by the Company, in part, in exchange for equity instruments, based on the fair value of such services. The associated cost of these warrants has been recorded as capital raise costs and is included in additional paid in capital in the condensed consolidated statements of shareholders’ equity.
	Offering costs
	Offering costs incurred in connection with the IPO, which included underwriters’ fees, legal and accounting fees, printing and other fees were deducted from the gross proceeds of the offering. The proceeds from the issuance of shares net of offering costs is included in additional paid in capital in the condensed consolidated statements of shareholders’ equity.
	Foreign currency transactions
	The Company’s functional currency is the U.S. dollar. Transactions in foreign currencies are recorded in U.S. dollars at the exchange rate in effect on the transaction date. Monetary assets and liabilities in foreign currencies are remeasured at the exchange rates in effect at the reporting date and foreign exchange gains and losses are included in the condensed consolidated statements of income.
	Income taxes and uncertain tax positions
	Under current Bermuda law, the Company and its Bermuda subsidiaries are not subject to any income or capital gains taxes. 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 in the United Kingdom, TPRUK, which is subject to relevant taxes in that jurisdiction.  On July 17, 2013, the United Kingdom government passed the Finance Act 2013, which reduced the corporate income tax rate from 23% to 21% (effective April 1, 2014) and provided for a further reduction in the corporate income tax rate from 21% to 20% (effective April 1, 2015). For the three and six months ended June 30, 2014, the Company recorded $0.02 million in income taxes relating to TPRUK.
	The Company is subject to withholding tax obligations related to dividends and interest on certain investments. Prior to the second quarter of 2014, these withholding tax obligations were recorded as deductions to net investment income. As these withholding tax obligations have increased, the Company has begun to present the relevant amounts in income tax expense in the condensed consolidated statements of income. As a result, withholding taxes of $1.0 million have been recorded in income tax expense for the three and six months ended June 30, 2014. Withholding taxes of $0.2 million and $0.5 million were previously recorded as deductions to net investment income for the three and six months ended June 30, 2013, respectively.
	The Company has also recorded a $1.4 million provision for uncertain tax positions related to investment transactions in certain foreign countries for the three and six months ended June 30, 2014 (2013 - nil).
	Non-controlling interests
	The Company consolidates the results of entities in which it has a controlling financial interest. The Company records the portion of shareholders’ equity attributable to non-controlling interests as a separate line within shareholders’ equity in the condensed consolidated balance sheets. The Company records the portion of income attributable to non-controlling interests as a separate line within the condensed consolidated statements of income.
	Earnings per share
	Basic earnings per share is based on the weighted average number of common shares and participating securities outstanding during the period. The weighted average number of common shares excludes any dilutive effect of outstanding warrants, options and convertible securities such as unvested restricted shares. Diluted earnings per share is based on the weighted average number of common shares and share equivalents including any dilutive effects of warrants, options and other awards under share plans and are determined using the treasury stock method. U.S. GAAP requires that unvested share awards that contain non-forfeitable rights to dividends or dividend equivalents, whether paid or unpaid (referred to as ‘‘participating securities”), be included in the number of shares outstanding for both basic and diluted earnings per share calculations. The Company treats its unvested restricted shares as participating securities. In the event of a net loss, the participating securities are excluded from the calculation of both basic and diluted loss per share.
	Leases
	Leases in which substantially all of the risks and rewards of ownership are retained by the lessor are classified as operating leases. Payments made under operating leases (net of any incentives received from the lessor) are recognized in the condensed consolidated statements of income on a straight-line basis over the term of the lease.
	Comprehensive income
	The Company has no comprehensive income other than net income disclosed in the condensed consolidated statements of income.
Segment information
Under U.S. GAAP, operating segments are based on the internal information that management uses for allocating resources and assessing performance of the Company. The Company reports two operating segments – Property and Casualty Reinsurance and Catastrophe Risk Management. The Company has also identified a corporate function that includes net investment income on capital and certain general and administrative expenses related to corporate activities.
Recently issued accounting standards
Issued and effective as of June 30, 2014
In January 2013, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update No. 2013-01, Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities (ASU 2013-01). The objective of ASU 2013-01 is to address implementation issues about the scope of ASU 2011-11, Disclosures about Offsetting Assets and Liabilities. The amendments clarify that the scope of ASU 2011-11 applies to derivatives, including bifurcated embedded derivatives, repurchase agreements and reverse repurchase agreements, and securities borrowing and securities lending transactions. Entities with other types of financial assets and financial liabilities subject to a master netting arrangement or similar agreement also are affected because these amendments make them no longer subject to the disclosure requirements in ASU 2011-11. ASU 2013-01 is effective for interim and annual periods beginning on or after January 1, 2013. The Company adopted ASU 2013-01 effective with its IPO and has included the required disclosures in Note 8 of the notes to the condensed consolidated financial statements.
In February 2013, the FASB issued Accounting Standards Update No. 2013-02, Comprehensive Income (ASU 2013-02). The objective of ASU 2013-02 is to improve the reporting of reclassifications out of other comprehensive income. ASU 2013-02 is effective for periods subsequent to December 15, 2012. The adoption of this guidance had no impact on the Company’s condensed consolidated financial statements.
In June 2013, the FASB issued Accounting Standards Update No. 2013-08, Financial Services - Investment Companies - Amendments to the Scope, Measurement, and Disclosure Requirements (ASU 2013-08). The amendments in this update change the assessment of whether an entity is an investment company by developing a new two-tiered approach for that assessment, which requires an entity to possess certain fundamental characteristics while allowing judgment in assessing other typical characteristics. The new approach requires an entity to assess all of the characteristics of an investment company and consider its purpose and design to determine whether it is an investment company. ASU 2013-08 is effective prospectively for periods subsequent to December 15, 2013. Early adoption is prohibited. The Company adopted ASU 2013-08 in the first quarter of 2014, and the adoption of this guidance did not have a material impact on the Company's condensed consolidated financial statements.
Issued but not yet effective as of June 30, 2014
In April 2014, the FASB issued Accounting Standards Update 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity (ASU 2014-08). ASU 2014-08 changes the requirements for reporting discontinued operations, such that a disposal of a component of the Company's operations is required to be reported as discontinued operations if the disposal represents a strategic shift that has, or will have, a major effect on the Company's operations and financial results. ASU 2014-08 is effective for all disposals that occur after January 1, 2015. The Company does not expect this new pronouncement to have a material impact on the Company’s consolidated financial statements.
In May 2014, the FASB issued Accounting Standards Update 2014-09, Revenue from Contracts with Customers (ASU 2014-09). ASU 2014-09 provides a framework, through a five-step process, for recognizing revenue from customers, improves comparability and consistency of recognizing revenue across entities, industries, jurisdictions and capital markets, and requires enhanced disclosures. Certain contracts with customers are specifically excluded from the scope of ASU 2014-09, including amongst others, insurance contracts accounted for under Accounting Standard Codification 944, Financial Services - Insurance. ASU 2014-09 is effective on January 1, 2017 with retrospective adoption required for the comparative periods. The Company is currently evaluating the impact of this guidance, however, it is not expected to have a material impact on the Company's consolidated financial statements.
In June 2014, the FASB issued Accounting Standards Update No. 2014-11, Transfers and Servicing (Topic 860): Repurchase-to Maturity Transactions, Repurchase Financings, and Disclosures (ASU 2014-11). ASU 2014-11 amends the accounting guidance for “repo-to-maturity” transactions and repurchase agreements executed as repurchase financings. In addition, the new standard requires a transferor to disclose more information about certain transactions, including those in which it retains substantially all of the exposure to the economic returns of the underlying transferred asset over the transaction’s term. For repurchase agreements and securities lending agreements accounted for as secured borrowings as of a reporting date, the new standard requires obligors (transferors of collateral) to disaggregate the related gross obligation by class of collateral pledged, and to disclose the remaining contractual maturity of the agreements, and to, discuss the potential risks of these arrangements and related collateral pledged, including the risks stemming from a decline in the value of the pledged collateral and how such risks are managed. Additionally, as a result of the new accounting guidance, repo-to-maturity transactions will be reported as secured borrowings. Transferors will also no longer apply the current “linked” accounting model to repurchase agreements executed contemporaneously with the initial transfer of the underlying financial asset with the same counterparty. ASU 2014-11 is effective prospectively for periods subsequent to December 15, 2014. The Company is currently evaluating the impact of this guidance, however, it is not expected to have a material impact on the Company's consolidated financial statements.

Restricted_cash_and_cash_equiv

Restricted cash and cash equivalents	6 Months Ended
	Jun. 30, 2014
Cash and Cash Equivalents [Abstract]	'
Restricted cash and cash equivalents	'
	Restricted cash and cash equivalents
	Restricted cash and cash equivalents as of June 30, 2014 and December 31, 2013 consisted of the following:
		June 30,		December 31,
		2014		2013
		($ in thousands)
	Restricted cash securing collateralized reinsurance contracts written by the Catastrophe Reinsurer	$	93,728	$	93,014
	Restricted cash securing credit facilities	128,396		100,563
		$	222,124	$	193,577

Reinsurance_premiums_ceded

Reinsurance premiums ceded	6 Months Ended
	Jun. 30, 2014
Reinsurance Disclosures [Abstract]	'
Reinsurance premiums ceded	'
	Reinsurance premiums ceded
	The Company from time to time purchases retrocessional coverage for one or more of the following reasons: to manage its overall exposure, to reduce its net liability on individual risks, to obtain additional underwriting capacity and to balance its underwriting portfolio. Additionally, retrocession can be used as a mechanism to share the risks and rewards of business written and therefore can be used as a tool to align the Company’s interests with those of its counterparties. The Company currently has coverage that provides for recovery of a portion of loss and loss adjustment expenses incurred on one crop contract written in 2013. Loss and loss adjustment expenses recoverable from the retrocessionaire are recorded as assets. For the three and six months ended June 30, 2014, loss and loss adjustment expenses incurred and reported on the condensed consolidated statements of income are net of loss and loss expenses recovered of $nil and $1.0 million, respectively, compared to $2.1 million and $4.2 million for three and six months ended June 30, 2013. Retrocession contracts do not relieve the Company from its obligations to the insureds. Failure of retrocessionaires to honor their obligations could result in losses to the Company. As of June 30, 2014, the Company had loss and loss adjustment expenses recoverable of $10.3 million (December 31, 2013 - $9.3 million) with one retrocessionaire who was rated “A (Excellent)” by A.M. Best Company. The Company regularly evaluates the financial condition of its retrocessionaires to assess the ability of the retrocessionaires to honor their obligations.

Investments

Investments	6 Months Ended
	Jun. 30, 2014
Fair Value Disclosures [Abstract]	'
Investments	'
	Investments
	The Company’s investments are managed by its investment manager, Third Point LLC (“Third Point LLC” or the “Investment Manager”), under a long-term investment management contract. The Company directly owns the investments, which are held in a separate account and managed by Third Point LLC. The following is a summary of the separate account managed by Third Point LLC:
		June 30,			December 31,
		2014			2013
	Assets	($ in thousands)
	Total investments in securities and commodities	$	1,805,225		$	1,460,864
	Cash and cash equivalents	9			869
	Restricted cash and cash equivalents	128,396			100,563
	Due from brokers	74,046			98,386
	Securities purchased under an agreement to sell	33,850			38,147
	Derivative assets	22,516			39,045
	Interest and dividends receivable	3,736			2,604
	Other assets	1,562			933
	Total assets	2,069,340			1,741,411
	Liabilities and non-controlling interest
	Accounts payable and accrued expenses	247			1,759
	Securities sold, not yet purchased, at fair value	46,994			56,056
	Due to brokers	281,091			44,870
	Derivative liabilities	10,528			8,819
	Performance fee payable to related party	22,002			—
	Interest and dividends payable	816			748
	Non-controlling interest	20,210			69,717
	Total liabilities and non-controlling interest	381,888			181,969
	Total net investments managed by Third Point LLC	$	1,687,452		$	1,559,442
	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 annually by Third Point LLC’s valuation committee (the “Committee”), which is comprised of officers and employees who are senior business management personnel of Third Point LLC. The Committee meets monthly. 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 either third-party pricing services or broker quotes. 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 for which the Company is unable to obtain fair values from a pricing service or broker, fair values are estimated using information obtained from the Company’s Investment Manager.
	Securities and commodities listed on a national securities or commodities 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 over-the-counter (“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, 2014, securities valued at $463.1 million (December 31, 2013 - $483.2 million), representing 25.7% (December 31, 2013 – 33.1%) of investments in securities and commodities, and $37.9 million (December 31, 2013 - $41.0 million), representing 80.7% (December 31, 2013 – 73.1%) of securities sold, not yet purchased, are valued based on broker quotes or other quoted market prices for similar securities.
	Private securities are not registered for public sale and are carried at an estimated fair value at the end of the period, as determined by the Company's Investment Manager. Valuation techniques used by the Company's Investment Manager 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, the Company or the Company’s Investment Manager may employ third party valuation firms to conduct separate valuations of such private securities. The third party valuation firms provide the Company or the Company’s Investment Manager with a written report documenting their recommended valuation as of the determination date for the specified investments.
	As of June 30, 2014, the Company had $3.1 million (December 31, 2013 - $3.3 million) of private securities fair valued by a third party valuation firm using information obtained from the Company's Investment Manager, which represented less than 1.0% (December 31, 2013 - 1.0%) of total investments in securities and commodities. The value at which these securities could be sold or settled with a willing buyer or seller may differ materially 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. The Company values exchange-traded derivatives at their last sales price on the exchange where it is primarily traded. OTC derivatives, which include swap, option, swaption, forward, future and contract for differences, are valued by third party sources 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.
	As an extension of its underwriting activities, the Catastrophe Reinsurer may sell derivative instruments that provide reinsurance-like protection to third parties for specific loss events associated with certain lines of business.  These derivatives are recorded in the condensed consolidated balance sheets at fair value, with changes in the fair value of these derivatives recorded in net investment income in the condensed consolidated statements of income.  These contracts are valued on the basis of models developed by the Company, which approximates fair value.
	In the second quarter of 2014, the Catastrophe Reinsurer purchased a catastrophe bond. This catastrophe bond is recorded in the condensed consolidated balance sheet at fair value, with changes in the fair value recorded in net investment income in the condensed consolidated statements of income. This catastrophe bond is valued using the average of the bids from a minimum of two broker-dealers or other market makers.
	The Company has reinsurance contracts with investment return features that are considered embedded derivatives. These embedded derivatives are required to be bifurcated from the host contracts and accounted for at fair value with changes in fair value of the embedded derivatives reported in other expenses. The Company's embedded derivatives relate to interest crediting features in certain reinsurance and deposit contracts that vary based on the returns on our investments managed by Third Point LLC. The Company determines the fair value of the embedded derivatives using models developed by the Company, which approximate fair value. See discussion of accounting policy for embedded derivatives in Note 2 for additional information.
	The Company’s holdings in asset-backed securities (“ABS”) are substantially invested in residential mortgage-backed securities (“RMBS”). The balance of the Company's holdings in ABS is in commercial mortgage-backed securities, collateralized debt obligations and student loan asset-backed securities. 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 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.
	The Company performs several processes to ascertain the reasonableness of the valuation of all of the Company’s investments comprising the Company’s investment portfolio, including securities that are categorized as Level 2 and Level 3 within the fair value hierarchy described below. These processes include i) obtaining and reviewing weekly and monthly investment portfolio reports from the Company's Investment Manager, ii) obtaining and reviewing monthly NAV and investment return reports received directly from the Company’s third-party fund administrator which are compared to the reports noted in (i), and iii) monthly update discussions with the Company’s Investment Manager regarding the investment portfolio, including, their process for reviewing and validating pricing obtained from third-party service providers.
	For the six months ended June 30, 2014 and 2013, there were no changes in the valuation techniques as it relates to the above.
	Monetary assets and liabilities denominated in foreign currencies are remeasured at the closing rates of exchange. Transactions during the period are translated at the rate of exchange prevailing on the date of the transaction. The Company does not isolate that portion of the net investment income resulting from changes in foreign exchange rates on investments, dividends and interest from the fluctuations arising from changes in fair values of securities and derivatives held. Periodic payments received or paid on swap agreements are recorded as realized gain or loss on investment transactions. Such fluctuations are included within net investment income in the condensed consolidated statements of income.
	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.
	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 in its entirety 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 spread. The key inputs for asset-backed securities 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 underlying and volatility of underlying.
	•	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 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 and the volatility of the underlying.
	The following tables present the Company’s investments, categorized by the level of the fair value hierarchy as of June 30, 2014 and December 31, 2013:
		30-Jun-14
		Quoted prices in active markets			Significant other observable inputs			Significant unobservable inputs		Total
		(Level 1)			(Level 2)			(Level 3)
	Assets	($ in thousands)
	Equity securities	$	1,118,096		$	38,979		$	—	$	1,157,075
	Private common equity securities	—			2,988			2,300		5,288
	Total equities	1,118,096			41,967			2,300		1,162,363
	Asset-backed securities	—			369,017			2,441		371,458
	Bank debts	—			11,829			—		11,829
	Corporate bonds	—			99,711			5,153		104,864
	Municipal bonds	—			19,431			—		19,431
	Sovereign debt	—			43,841			30		43,871
	Total debt securities	—			543,829			7,624		551,453
Investments in limited partnerships	—			66,492			5,771		72,263
Options	2,619			164			—		2,783
Rights and warrants	297			—			—		297
Trade claims	—			16,066			—		16,066
Catastrophe bond	—			2,003			—		2,003
Total other investments	2,916			84,725			5,771		93,412
Derivative assets (free standing)	—			22,516			—		22,516
Total assets	$	1,121,012		$	693,037		$	15,695	$	1,829,744
Liabilities
Equity securities	$	4,008		$	—		$	—	$	4,008
Sovereign debt	—			33,213			—		33,213
Corporate bonds	—			4,699			—		4,699
Options	3,614			1,460			—		5,074
Total securities sold, not yet purchased	7,622			39,372			—		46,994
Derivative liabilities (free standing)	532			9,996			—		10,528
Derivative liabilities (embedded)	—			—			5,538		5,538
Total liabilities	$	8,154		$	49,368		$	5,538	$	63,060
	December 31, 2013
	Quoted prices in active markets			Significant other observable inputs			Significant unobservable inputs		Total
	(Level 1)			(Level 2)			(Level 3)
Assets	($ in thousands)
Equity securities	$	839,903		$	17,914		$	—	$	857,817
Private common equity securities	—			94,282			2,012		96,294
Total equities	839,903			112,196			2,012		954,111
Asset-backed securities	—			325,133			400		325,533
Bank debts	—			8,017			—		8,017
Corporate bonds	—			82,139			4,610		86,749
Municipal bonds	—			10,486			—		10,486
Sovereign debt	—			10,639			—		10,639
Total debt securities	—			436,414			5,010		441,424
Investments in limited partnerships	—			29,286			5,292		34,578
Options	6,284			6,785			—		13,069
Rights and warrants	1			—			—		1
Trade claims	—			17,681			—		17,681
Total other investments	6,285			53,752			5,292		65,329
Derivative assets	321			38,724			—		39,045
Total assets	$	846,509		$	641,086		$	12,314	$	1,499,909
Liabilities
Equity securities	$	5,207		$	—		$	—	$	5,207
Sovereign debt	—			37,592			—		37,592
Corporate bonds	—			3,372			—		3,372
Options	4,714			5,171			—		9,885
Total securities sold, not yet purchased	9,921			46,135			—		56,056
Derivative liabilities (free standing)	441			8,378			—		8,819
Derivative liabilities (embedded)	—			—			4,430		4,430
Total liabilities	$	10,362		$	54,513		$	4,430	$	69,305
During the three and six months ended June 30, 2014 and 2013, the Company reclassified $86.6 million (2013 - nil) of private common equity securities from Level 2 to Level 1 equity securities. This reclassification is the result of the issuer's IPO, with quoted prices having become available in an active market as of the reporting date.
The following table presents the reconciliation for all investments measured at fair value using significant unobservable inputs (Level 3) for the three and six months ended June 30, 2014 and 2013:
	1-Jan-14			Transfers in to (out of) Level 3			Purchases		Sales			Realized and Unrealized Gains(Losses) (1)			June 30,
															2014
	($ in thousands)
Assets
Asset-backed securities	$	400		$	(1,631	)	$	3,805	$	(1,903	)	$	1,770		$	2,441
Corporate bonds	4,610			—			821		(332		)	54			5,153
Private common equity securities	2,012			—			—		—			288			2,300
Investments in limited partnerships	5,292			—			54		—			425			5,771
Sovereign debt	—			—			30		—			—			30
Total assets	$	12,314		$	(1,631	)	$	4,710	$	(2,235	)	$	2,537		$	15,695
Liabilities
Derivative liabilities (embedded)	$	(4,430	)	$	—		$	—	$	(783	)	$	(325	)	$	(5,538	)
	1-Apr-14			Transfers in to (out of) Level 3			Purchases		Sales			Realized and Unrealized Gains(Losses) (1)			June 30,
															2014
	($ in thousands)
Assets
Asset-backed securities	$	3,552		$	(3,552	)	$	2,441	$	—		$	—		$	2,441
Corporate bonds	4,781			—			734		(332		)	(30		)	5,153
Private common equity securities	2,012			—			—		—			288			2,300
Investment in limited partnership	5,108			—			—		—			663			5,771
Sovereign debt	—			—			30		—			—			30
Total assets	$	15,453		$	(3,552	)	$	3,205	$	(332	)	$	921		$	15,695
Liabilities
Derivative liabilities (embedded)	$	(5,356	)	$	—		$	—	$	—		$	(182	)	$	(5,538	)
	1-Jan-13			Transfers in to (out of) Level 3			Purchases		Sales			Realized and Unrealized Gains(Losses) (1)			June 30,
															2013
	($ in thousands)
Assets
Asset-backed securities	$	—		$	309		$	149	$	—		$	(264	)	$	194
Bank debt	54			(54		)	—		—			—			—
Corporate bonds	1,046			(1,302		)	3,984		(1,120		)	1,696			4,304
Private common equity securities	2,757			—			1,654		(1,795		)	857			3,473
Investment in limited partnership	—			—			1,288		(342		)	(43		)	903
Total assets	$	3,857		$	(1,047	)	$	7,075	$	(3,257	)	$	2,246		$	8,874
Liabilities
Derivative liabilities (free standing)	$	—		$	—		$	—	$	(3,345	)	$	1,105		$	(2,240	)
Derivative liabilities (embedded)	(2,510		)	—			—		(1,460		)	(210		)	(4,180		)
Total liabilities	$	(2,510	)	$	—		$	—	$	(4,805	)	$	895		$	(6,420	)
	1-Apr-13			Transfers in to (out of) Level 3			Purchases		Sales			Realized and Unrealized Gains(Losses) (1)			June 30,
															2013
	($ in thousands)
Assets
Asset-backed securities	$	—		$	309		$	149	$	—		$	(264	)	$	194
Corporate bonds	9,354			(8,224		)	3,984		(1,120		)	310			4,304
Private common equity securities	4,406			—			—		(1,795		)	862			3,473
Investment in limited partnership	—			—			1,288		(342		)	(43		)	903
Total assets	$	13,760		$	(7,915	)	$	5,421	$	(3,257	)	$	865		$	8,874
Liabilities
Derivative liabilities (free standing)	$	(1,332	)	$	—		$	—	$	(1,250	)	$	342		$	(2,240	)
Derivative liabilities (embedded)	(2,680		)	—			—		(1,460		)	(40		)	(4,180		)
Total liabilities	$	(4,012	)	$	—		$	—	$	(2,710	)	$	302		$	(6,420	)
(1) Total net change in realized and unrealized gain (loss) recorded on Level 3 financial instruments are included in net investment income in the condensed consolidated statements of income.
Total unrealized gain (loss) related to fair value assets using significant unobservable inputs (Level 3) for the six months ended June 30, 2014 was $0.6 million (2013 - gains of $0.4 million).
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 Company did not hold Level 3 investments where quantitative unobservable inputs are produced by the Company itself when estimating fair value.

Securities_purchased_under_an_

Securities purchased under an agreement to sell	6 Months Ended
	Jun. 30, 2014
Securities Purchased under Agreements to Resell [Abstract]	'
Securities purchased under an agreement to sell	'
	Securities purchased under an agreement to sell
	The Company may enter into repurchase and reverse repurchase agreements with financial institutions in which the financial institution agrees to resell or repurchase and the Company agrees to repurchase or resell such securities at a mutually agreed price upon maturity. As of June 30, 2014, the Company held outstanding reverse repurchase agreements valued at $33.9 million (December 31, 2013 - $38.1 million). As of June 30, 2014, the total value of securities received as collateral by the Company was $33.2 million (December 31, 2013 - $37.6 million). As the Company held only reverse repurchase agreements as of June 30, 2014, these positions are not impacted by master netting agreements. Interest expense and income related to these transactions are included in interest payable and receivable in the condensed consolidated balance sheets. For the three months ended June 30, 2014, there was a foreign currency loss of $0.2 million (2013 – gain of $0.5 million) on reverse repurchase agreements included in net investment income in the condensed consolidated statements of income. For the six months ended June 30, 2014, there was a foreign currency loss of $0.2 million (2013 - gain of 0.04 million) on reverse repurchase agreements included in net investment income in the condensed consolidated statements of income. Generally, reverse repurchase agreements mature within 30 to 90 days.

Due_fromto_brokers

Due from/to brokers	6 Months Ended
	Jun. 30, 2014
Due to and from Broker-Dealers and Clearing Organizations [Abstract]	'
Due from/to brokers	'
	Due from/to brokers
	The Company holds substantially all of its investments through its prime brokers pursuant to various agreements between the Company and each prime broker. The brokerage arrangements differ from broker to broker, but generally cash and investments in securities and commodities balances are available as collateral against investment in securities sold, not yet purchased and derivative positions, if required.
	Margin debt balances are collateralized by cash held by the prime brokers and certain of the Company’s securities. Margin interest was paid either at the daily broker call rate or based on LIBOR.
	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 and to brokers includes cash collateral received and posted from OTC and repurchase agreement counterparties. As of June 30, 2014, the Company’s due from/to brokers includes a total non-U.S. currency payable balance of $288.2 million (December 31, 2013 - $268.5 million).

Derivatives

Derivatives	6 Months Ended
	Jun. 30, 2014
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'
Derivatives	'
	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, 2014
		Listing currency (1)		Fair Value				Notional Amounts (2)
	Derivative Assets by Primary Underlying Risk	($ in thousands)
	Credit
	Credit Default Swaps - Protection Purchased	USD		$	11,349			$	105,945
	Credit Default Swaps - Protection Sold	USD		1,221				11,481
	Equity Price
	Contracts for Differences - Long Contracts	EUR/USD		3,716				50,889
	Total Return Swaps - Long Contracts	AUD/BRL/MXN		1,899				19,768
	Interest Rates
	Interest Rate Swaps	EUR		175				211,261
	Interest Rate Swaptions	USD		2,193				357,585
	Foreign Currency Exchange Rates
	Foreign Currency Options - Purchased	HKD/JPY/SAR		1,963				169,711
	Total Derivative Assets			$	22,516			$	926,640
		Listing currency (1)		Fair Value				Notional Amounts (2)
	Derivative Liabilities by Primary Underlying Risk	($ in thousands)
	Credit
	Credit Default Swaps - Protection Purchased	EUR/USD		$	2,905			$	76,193
	Credit Default Swaps - Protection Sold	USD		1,254				4,555
	Equity Price
	Contracts for Differences - Long Contracts	EUR/GBP		370				22,343
	Contracts for Differences - Short Contracts	EUR		307				4,402
	Total Return Swaps - Long Contracts	USD		2				13,156
	Total Return Swaps - Short Contracts	USD		635				7,300
	Index
	Index Futures - Short Contracts	USD		369				27,173
	Interest Rates
	Bond Futures - Short Contracts	JPY		142				46,021
	Interest Rate Swaps	EUR		464				210,623
	Interest Rate Swaptions	USD		1,608				182,777
	Treasury Futures - Short Contracts	USD		21				11,089
	Foreign Currency Exchange Rates
	Foreign Currency Forward	AUD/BRL/CAD/EUR/GBP/JPY/TRY		1,916				181,606
	Foreign Currency Options - Sold	JPY		535				26,083
	Total Derivative Liabilities (free standing)			$	10,528			$	813,321
	Embedded derivative liabilities in reinsurance contracts (3)	USD		$	888			$	15,000
	Embedded derivative liabilities in deposit contracts (4)	USD		4,650				75,000
	Total Derivative Liabilities (embedded)			$	5,538			$	90,000
	(1) USD =S dollar, JPY =apanese yen, EUR =uro, GBP =ritish pound, BRL =razilian real, MXN=xican Peso, AUD =ustralian dollar, CAD =anadian dollar, TRY =urkish lira, SAR=audi Arabian Riyal, HKD =ong Kong
	(2) The absolute notional exposure represents the Company's derivative activity as of June 30, 2014, 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 sheet.
	(4) The fair value of embedded derivatives in deposit contracts is included in deposit liabilities in the condensed consolidated balance sheet.
		As of December 31, 2013
		Listing currency (1)		Fair Value				Notional Amounts (2)
	Derivative Assets by Primary Underlying Risk	($ in thousands)
	Commodity Price
	Commodity Future Options - Purchased	USD		$	256			$	12,325
	Credit
	Credit Default Swaps - Protection Purchased	USD		15,397				109,520
	Credit Default Swaps - Protection Sold	USD		1,157				9,557
	Equity Price
	Contracts for Differences - Long Contracts	CHF/EUR/GBP/USD		10,549				62,847
	Contracts for Differences - Short Contracts	NOK		67				2,758
	Total Return Swaps - Long Contracts	BRL/JPY/USD		2,950				68,044
	Total Return Swaps - Short Contracts	USD		3				290
	Interest Rates
	Bond Futures - Short Contracts	JPY		212				40,847
	Interest Rate Swaps	EUR		182				212,594
	Interest Rate Swaptions	EUR/JPY/USD		1,269				54,884
	Treasury Futures - Short Contracts	USD		108				6,544
Foreign Currency Exchange Rates
Foreign Currency Forward	AUD/CAD/JPY/TRY		1,332				59,925
Foreign Currency Options - Purchased	USD		5,563				240,062
Total Derivative Assets			$	39,045			$	880,197
	Listing currency (1)		Fair Value				Notional Amounts (2)
Derivative Liabilities by Primary Underlying Risk	($ in thousands)
Commodity Price
Commodity Future Options - Sold	USD		$	148			$	35,484
Credit
Credit Default Swaps - Protection Purchased	EUR/USD		2,634				59,446
Credit Default Swaps - Protection Sold	USD		348				875
Equity Price
Contracts for Differences - Long Contracts	EUR		66				14,607
Contracts for Differences - Short Contracts	DKK		425				7,253
Total Return Swaps - Long Contracts	BRL/JPY/USD		1,385				24,807
Total Return Swaps - Short Contracts	USD		140				5,037
Index
Index Futures - Short Contracts	USD		441				8,888
Interest Rates
Interest Rate Swaps	EUR/USD		821				465,560
Interest Rate Swaptions	USD/JPY		174				99,587
Foreign Currency Exchange Rates
Foreign Currency Forward	EUR/GBP		709				189,030
Foreign Currency Options - Sold	USD		1,528				178,476
Total Derivative Liabilities			$	8,819			$	1,089,050
Embedded derivative liabilities in deposit contracts (3)	USD		$	4,430			$	75,000
Total Derivative Liabilities (embedded)			$	4,430			$	75,000
(1) USD =S dollar, JPY =apanese yen, EUR =uro, GBP =ritish pound, BRL =razilian real, NOK =orwegian krone, AUD =ustralian dollar, DKK =anish krone, CAD =anadian dollar, CHF =wiss franc, TRY=rkish lira
(2) The absolute notional exposure represents the Company's derivative activity as of December 31, 2013, which is representative of the volume of derivatives held during the period.
(3) The fair value of embedded derivatives in deposit contracts is included in deposit liabilities in the condensed consolidated balance sheet.
(4) The fair value of embedded derivatives in deposit contracts is included in deposit liabilities in the condensed consolidated balance sheet.
The following tables set 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, 2014 and 2013. Realized and unrealized gains (losses) related to free standing derivatives are included in net investment income in the condensed consolidated statements of income. Realized and unrealized gains (losses) related to embedded derivatives are included in other expenses in the condensed consolidated statements of income.
	For the three months ended
	June 30, 2014								June 30, 2013
Free standing Derivatives - Primary Underlying Risk	Realized Gain (Loss)				Unrealized Gain (Loss)*				Realized Gain (Loss)			Unrealized Gain (Loss)*
Commodity Price	($ in thousands)
Commodities Futures - Long Contracts	$	—			$	—			$	(2,455	)	$	—
Commodities Futures - Short Contracts	—				—				176			(30		)
Commodity Future Options - Purchased	—				—				(77		)	(2		)
Credit
Credit Default Swaps - Protection Purchased	(1,511		)		(615		)		(9,530		)	7,535
Credit Default Swaps - Protection Sold	104				323				8,151			(7,792		)
Equity Price
Contracts for Differences - Long Contracts	4,760				(4,566		)		2,576			(3,926		)
Contracts for Differences - Short Contracts	(518		)		(228		)		854			(250		)
Total Return Swaps - Long Contracts	5,101				(408		)		41			(1,267		)
Total Return Swaps - Short Contracts	337				(264		)		1,459			(484		)
Index
Index Futures - Short Contracts	(193		)		(369		)		—			—
Interest Rates
Bond Futures - Short Contracts	(224		)		(184		)		704			99
Interest Rate Swaps	167				56				635			(477		)
Interest Rate Swaptions	(1		)		(657		)		(13		)	(58		)
Treasury Futures - Short Contracts	(385		)		(2		)		87			157
Foreign Currency Exchange Rates
Foreign Currency Forward	(315		)		(1,625		)		(1,784		)	3,523
Foreign Currency Options - Purchased	(474		)		(305		)		4,110			1,686
Foreign Currency Options - Sold	—				214				(1,544		)	(894		)
Reinsurance contract derivatives	—				—				—			342
	$	6,848			$	(8,630	)		$	3,390		$	(1,838	)
Embedded Derivatives
Embedded derivatives in reinsurance contracts	$	—			$	(43	)		$	—		$	—
Embedded derivatives in deposit contracts	—				(139		)		—			(40		)
	$	—			$	(182	)		$	—		$	(40	)
	For the six months ended
	June 30, 2014								June 30, 2013
Free standing Derivatives - Primary Underlying Risk	Realized Gain (Loss)				Unrealized Gain (Loss)*				Realized Gain (Loss)			Unrealized Gain (Loss)*
Commodity Price	($ in thousands)
Commodities Futures - Long Contracts	$	—			$	—			$	(2,455	)	$	—
Commodities Futures - Short Contracts	—				—				563			(212		)
Commodity Future Options - Purchased	(271		)		(5		)		(141		)	(1		)
Commodity Future Options - Sold	316				(168		)		—			—
Credit
Credit Default Swaps - Protection Purchased	(2,314		)		(3,521		)		(8,815		)	5,330
Credit Default Swaps - Protection Sold	185				204				8,151			(7,791		)
Equity Price
Contracts for Differences - Long Contracts	5,036				(7,135		)		8,690			(4,242		)
Contracts for Differences - Short Contracts	(2,338		)		51				989			437
Total Return Swaps - Long Contracts	9,791				332				1,005			(933		)
Total Return Swaps - Short Contracts	524				(497		)		1,254			164
Index
Index Futures - Short Contracts	(332		)		72				19			—
Interest Rates
Bond Futures - Short Contracts	(544		)		(354		)		562			(248		)
Interest Rate Swaps	(457		)		349				629			487
Interest Rate Swaptions	529				(1,576		)		(169		)	33
Treasury Futures - Short Contracts	(641		)		(129		)		435			(430		)
Foreign Currency Exchange Rates
Foreign Currency Forward	219				(2,540		)		6,310			1,995
Foreign Currency Options - Purchased	(1,740		)		(2,152		)		8,617			462
Foreign Currency Options - Sold	686				385				(3,196		)	(212		)
Reinsurance contract derivatives	—				—				—			1,105
	$	8,649			$	(16,684	)		$	22,448		$	(4,056	)
Embedded Derivatives
Embedded derivatives in reinsurance contracts	$	—			$	(106	)		$	—		$	—
Embedded derivatives in deposit contracts	—				(219		)		—			(210		)
Total Derivative Liabilities (embedded)	$	—			$	(325	)		$	—		$	(210	)
* Unrealized gain (loss) relates to derivatives still held at reporting date.
The Company’s ISDA agreements with its counterparties provide for various termination events including decline in the NAV of the Company’s investments over a certain period, key-man provisions, document delivery schedules, and Employment Retirement Income Security Act and bankruptcy provisions. Upon the triggering of a termination event, a counterparty may avail itself of various remedies including, but not limited to, waiver of the termination event, request for additional collateral, renegotiation of the ISDA agreement, or immediate settlement of positions.
The Company obtains/provides collateral from/to various counterparties for OTC derivative contracts in accordance with bilateral collateral agreements. As of June 30, 2014, the Company posted collateral in the form of cash of $37.1 million (December 31, 2013 - $35.4 million) to certain counterparties to cover collateral requirements for open OTC derivatives.
The Company does not offset its derivative instruments and presents all amounts in the condensed consolidated balance sheets on a gross basis. The Company has pledged cash collateral to counterparties to support the current value of amounts due to the counterparties based on the value of the underlying security. As of June 30, 2014 and December 31, 2013, the gross and net amounts of derivative instruments that are subject to enforceable master netting arrangements or similar agreements were as follows:
		Gross Amounts not offset in the condensed consolidated balance sheet
June 30, 2014 Counterparty		Gross Amounts of Assets Presented in the condensed consolidated balance sheet				Financial Instruments				Cash Collateral Received			Net Amount
		($ in thousands)
Counterparty 1		$	886			$	886			$	—		$	—
Counterparty 2		1,648				528				—			1,120
Counterparty 3		7,912				3,897				—			4,015
Counterparty 4		1,054				1,054				—			—
Counterparty 5		1,656				1,656				—			—
Counterparty 6		8,674				458				5,608			2,608
Counterparty 7		31				31				—			—
Counterparty 8		50				50				—			—
Counterparty 9		605				—				560			45
Total		$	22,516			$	8,560			$	6,168		$	7,788
		Gross Amounts not offset in the condensed consolidated balance sheet
June 30, 2014 Counterparty		Gross Amounts of Liabilities Presented in the condensed consolidated balance sheet				Financial Instruments				Cash Collateral Pledged			Net Amount
		($ in thousands)
Counterparty 1		$	1,440			$	886			$	554		$	—
Counterparty 2		528				528				—			—
Counterparty 3		3,897				3,897				—			—
Counterparty 4		1,540				1,054				486			—
Counterparty 5		1,804				1,656				148			—
Counterparty 6		458				458				—			—
Counterparty 7		480				31				449			—
Counterparty 8		381				50				331			—
Total		$	10,528			$	8,560			$	1,968		$	—
		Gross Amounts not offset in the condensed consolidated balance sheet
31-Dec-13		Gross Amounts of Assets Presented in the condensed consolidated balance sheet				Financial Instruments				Cash Collateral Received			Net Amount
Counterparty
		($ in thousands)
Counterparty 1		$	1,128			$	1,041			$	—		$	87
Counterparty 2		4,998				400				1,629			2,969
Counterparty 3		16,066				3,509				—			12,557
Counterparty 4		1,351				1,351				—			—
Counterparty 5		3,198				1,054				—			2,144
Counterparty 6		12,234				492				10,465			1,277
Counterparty 7		2				2				—			—
Counterparty 8		—				—				—			—
Counterparty 9		68				68				—			—
Total		$	39,045			$	7,917			$	12,094		$	19,034
		Gross Amounts not offset in the condensed consolidated balance sheet
31-Dec-13		Gross Amounts of Liabilities Presented in the condensed consolidated balance sheet				Financial Instruments				Cash Collateral Pledged			Net Amount
Counterparty
		($ in thousands)
Counterparty 1		$	1,041			$	1,041			$	—		$	—
Counterparty 2		400				400				—			—
Counterparty 3		3,509				3,509				—			—
Counterparty 4		1,360				1,351				9			—
Counterparty 5		1,054				1,054				—			—
Counterparty 6		492				492				—			—
Counterparty 7		59				2				57			—
Counterparty 8		—				—				—			—
Counterparty 9		904				68				836			—
Total		$	8,819			$	7,917			$	902		$	—

Loss_and_loss_adjustment_expen

Loss and loss adjustment expense reserves	6 Months Ended
	Jun. 30, 2014
Loss and Loss Adjustment Expense Reserves [Abstract]	'
Loss and loss adjustment expense reserves	'
	Loss and loss adjustment expense reserves
	As of June 30, 2014 and December 31, 2013, loss and loss adjustment expense reserves in the condensed consolidated balance sheets was comprised of the following:
		June 30,			December 31,
		2014			2013
		($ in thousands)
	Case loss and loss adjustment expense reserves	$	42,488		$	34,307
	Incurred but not reported loss and loss adjustment expense reserves	142,139			100,024
		$	184,627		$	134,331
	The following table represents the activity in the reserve for losses and loss adjustment expenses for the six months ended June 30, 2014 and 2013:
		June 30,			June 30,
		2014			2013
		($ in thousands)
	Gross reserves for loss and loss adjustment expenses, beginning of period	$	134,331		$	67,271
	Less: loss and loss adjustment expenses recoverable, beginning of period	(9,277		)	—
	Net reserves for loss and loss adjustment expenses, beginning of period	125,054			67,271
	Increase (decrease) in net loss and loss adjustment expenses incurred in respect of losses occurring in:
	Current year	88,059			67,154
	Prior years'	2,609			(2,824		)
	Total incurred loss and loss adjustment expenses	90,668			64,330
	Net loss and loss adjustment expenses paid in respect of losses occurring in:
	Current year	(22,141		)	(6,044		)
	Prior years'	(19,228		)	(16,647		)
	Total net paid losses	(41,369		)	(22,691		)
	Net reserve for loss and loss adjustment expenses, end of period	174,353			108,910
	Plus: loss and loss adjustment expenses recoverable, end of period	10,274			4,190
	Gross reserve for loss and loss adjustment expenses, end of period	$	184,627		$	113,100
	The $2.6 million increase in prior years' reserves for the six months ended June 30, 2014 reflects $1.1 million of net adverse loss development, primarily related to one crop contract, and additional reserves for loss and loss adjustment expenses of $1.5 million resulting from premium increases on certain other contracts. The changes in loss and loss adjustment expense reserves related to premium estimate changes were accompanied by similar changes in the premium earned for those contracts, resulting in minimal impact to net underwriting income in both periods. The $2.8 million decrease in prior years' reserves recorded in the six months ended June 30, 2013 related primarily to one crop contract, which was accompanied by an equal decrease in the premium for that contract, resulting in a zero impact to underwriting income.

Management_performance_and_fou

Management, performance and founders fees	6 Months Ended
	Jun. 30, 2014
Management, Performance and Founders Fees [Abstract]	'
Management, performance and Founders fees	'
	Management, performance and Founders fees
	The Company and Third Point Re are party to a Joint Venture and Investment Management Agreement (the “Investment Agreement”) with Third Point LLC and Third Point Advisors LLC under which Third Point LLC manages certain jointly held assets.
	Pursuant to the Investment Agreement, Third Point Advisors LLC receives an annual performance fee allocation equal to 20% of the net investment income of the Company’s share of the investment assets managed by Third Point LLC, subject to a loss carry-forward provision. Additionally, a total management fee equal to 2% annually of the Company’s share of the investment assets managed by Third Point LLC is paid to Third Point LLC and certain of the Founders. Management fees are paid monthly, in arrears, whereas performance fees are paid annually, in arrears.
	Investment fee expenses related to the Investment Agreement, which are included in net investment income in the condensed consolidated statements of income for the three and six months ended June 30, 2014 and 2013 are as follows:
		For the three months ended				For the six months ended
		June 30,		June 30,		June 30,		June 30,
		2014		2013		2014		2013
		($ in thousands)
	Management fees - Third Point LLC	$	1,240	$	795	$	2,428	$	1,519
	Management fees - Founders	7,025		4,502		13,760		8,604
	Performance fees - Third Point Advisors LLC	9,706		8,063		22,002		28,069
		$	17,971	$	13,360	$	38,190	$	38,192
	As of June 30, 2014, $22.0 million related to performance fees due under the Investment Agreement was included in performance fee payable to related party in the condensed consolidated balance sheets. As of December 31, 2013, $63.0 million related to the performance fee payable to Third Point Advisors LLC was included in non-controlling interests. Since the performance fee allocation is based on annual performance, in accordance with the Investment Agreement, the performance fees are included in total liabilities until the performance fee is determined at year end and allocated to Third Point Advisors LLC's capital account.

Deposit_contracts

Deposit contracts	6 Months Ended
	Jun. 30, 2014
Deposit Contracts, Liabilities [Abstract]	'
Deposit contracts	'
	Deposit contracts
	Deposit liability contracts each contain a fixed interest crediting rate, which ranges from 2.5% to 3.0%. Certain deposit contracts also contain a variable interest crediting feature based on actual investment returns realized by the Company that can increase the overall effective interest crediting rate on those contracts to 6.1% to 6.5%. These variable interest crediting features are considered embedded derivatives. We include the estimated fair value of these embedded derivatives with the host deposit liability contracts. Changes in the estimated fair value of these embedded derivatives are recorded in other expenses in the condensed consolidated statements of income.
	The following table represents activity in the deposit liabilities for the six months ended June 30, 2014 and the year ended December 31, 2013:
		June 30,			December 31,
		2014			2013
		($ in thousands)
	Balance, beginning of period	$	120,946		$	50,446
	Consideration received	—			66,369
	Net investment expense allocation and change in fair value of embedded derivatives	1,263			4,731
	Payments	(250		)	(600		)
	Balance, end of period	$	121,959		$	120,946

General_and_administrative_exp

General and administrative expenses	6 Months Ended
	Jun. 30, 2014
General and Administrative Expense [Abstract]	'
General and administrative expenses	'
	General and administrative expenses
	General and administrative expenses for the three and six months ended June 30, 2014 and 2013 are as follows:
		For the three months ended				For the six months ended
		June 30,		June 30,		June 30,		June 30,
		2014		2013		2014		2013
		($ in thousands)
	Payroll and related	$	3,928	$	3,349	$	8,225	$	6,704
	Share compensation expenses	2,246		1,716		4,498		3,468
	Legal and accounting	968		481		2,097		995
	Travel and entertainment	828		427		1,575		1,069
	IT related	330		354		792		584
	Corporate insurance	275		92		589		212
	Occupancy	164		112		285		225
	Credit facility fees	220		220		406		360
	Director and board costs	162		28		296		59
	Other general and administrative expenses	428		438		811		549
		$	9,549	$	7,217	$	19,574	$	14,225

Net_investment_income

Net investment income	6 Months Ended
	Jun. 30, 2014
Net Investment Income [Abstract]	'
Net investment income	'
	Net investment income
	Net investment income for the three and six months ended June 30, 2014 and 2013 consisted of the following:
		For the three months ended						For the six months ended
		June 30,			June 30,			June 30,			June 30,
		2014			2013			2014			2013
	Net investment income by type	($ in thousands)
	Net realized gains on investments and investment derivatives	$	46,556		$	13,712		$	131,308		$	112,895
	Net unrealized gains (losses) on investments and investment derivatives	11,295			22,536			(4,959		)	24,305
	Net realized (loss) gain on foreign currencies	(4,350		)	5,324			(8,274		)	5,717
	Dividend and interest income	8,049			5,755			15,777			11,300
	Dividends paid on securities sold, not yet purchased	(1		)	(166		)	(34		)	(436		)
	Management and performance fees	(17,971		)	(13,360		)	(38,190		)	(38,192		)
	Other expenses	(3,126		)	(1,334		)	(5,170		)	(2,524		)
	Net investment income on investments managed by Third Point LLC	40,452			32,467			90,458			113,065
	Investment income on cash held by the Catastrophe Reinsurer and Catastrophe Fund	28			—			57			—
	Net gain on catastrophe bond held by Catastrophe Reinsurer	5			—			5			—
	Net gain on reinsurance contract derivatives written by the Catastrophe Reinsurer	—			359			—			1,122
		$	40,485		$	32,826		$	90,520		$	114,187
		For the three months ended						For the six months ended
		June 30,			June 30,			June 30,			June 30,
		2014			2013			2014			2013
	Net investment income by asset class	($ in thousands)
	Net investment gains on equity securities	$	22,822		$	31,612		$	50,645		$	107,321
	Net investment gains on debt securities	31,783			8,570			86,975			42,599
	Net investment (losses) gains on other investments	(3,785		)	12,318			(4,980		)	3,078
	Net investment (losses) gains on investment derivatives	(1,782		)	1,566			(8,035		)	18,409
	Net investment gains (losses) on securities sold, not yet purchased	15,397			(11,658		)	15,384			(21,874		)
	Net investment (loss) income on cash, including foreign exchange gains (losses)	(4,718		)	4,528			(9,173		)	5,133
	Net investment gains (losses) on securities purchased under and agreement to resell	(224		)	517			(211		)	21
	Management and performance fees	(17,971		)	(13,360		)	(38,190		)	(38,192		)
	Other investment expenses	(1,037		)	(1,267		)	(1,895		)	(2,308		)
		$	40,485		$	32,826		$	90,520		$	114,187

Other_expenses_Other_expenses

Other expenses Other expenses	6 Months Ended
	Jun. 30, 2014
Other Income and Expenses [Abstract]	'
Other expenses	'
	Other expenses
	Other expenses for the three and six months ended June 30, 2014 and 2013 consisted of the following:
		For the three months ended				For the six months ended
		June 30,		June 30,		June 30,		June 30,
		2014		2013		2014		2013
		($ in thousands)
	Deposit liabilities and reinsurance contracts investment expense	$	837	$	719	$	1,481	$	1,219
	Change in fair value of embedded derivatives in deposit and reinsurance contracts (1)	183		40		326		210
		$	1,020	$	759	$	1,807	$	1,429
	(1) See discussion of accounting policy for embedded derivatives in Note 2 for additional information.

Share_capital

Share capital	6 Months Ended
	Jun. 30, 2014
Equity [Abstract]	'
Share capital	'
	Share capital
	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. As of June 30, 2014, 103,931,386 common shares (December 31, 2013 - 103,888,916) were issued and outstanding. No preference shares have been issued to date.
	On August 20, 2013, the Company completed an IPO of 24,832,484 common shares at a purchase price of $12.50 per share. The net proceeds of the offering were $286.0 million, after deducting offering costs.
	Warrants
	The Company’s Founders and an advisor provided insurance industry expertise, resources and relationships to ensure that the Company would be fully operational with key management in place in time for the January 2012 underwriting season. In consideration of these commitments, the Company reserved for issuance to the Founders and an advisor warrants to purchase, in the aggregate, up to 4.0% (Founders 3.5% and an advisor 0.5%) of the diluted shares (up to a maximum of $1 billion of subscribed shares) provided that the Founders and the advisor will not be issued any warrants for common shares issued in consideration for any capital raised by the Company in excess of $1 billion. The following is a summary of warrants as of June 30, 2014:
		Exercise price		Authorized and	Aggregate fair
				issued	value of
					warrants
		($ in thousands, except for share and per share amounts)
	Founders	$	10	4,069,768	$	15,203
	Advisor	$	10	581,395	2,171
				4,651,163	$	17,374
	The warrants were subject to a performance condition that was met as a result of the IPO. Prior to the IPO, 3,648,006 of the warrants outstanding had met the performance condition. After the IPO, the remaining 1,003,157 warrants met the performance condition. These amounts have been recorded as a component of capital raise costs in additional paid in capital resulting in no net impact to total shareholders’ equity.
	The warrants expire 10 years from the date of issuance, December 22, 2011, and will be exercisable at a price per share of $10.00, which is equal to the price per share paid by investors in the initial capitalization of the Company.

Sharebased_compensation

Share-based compensation	6 Months Ended
	Jun. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Share-based compensation	'
	Share-based compensation
	On July 15, 2013, the Third Point Reinsurance Ltd. 2013 Omnibus Incentive Plan (“Omnibus Plan”) was approved by the Board of Directors and subsequently on August 2, 2013 by the shareholders of the Company. An aggregate of 21,627,906 common shares were made available under the Omnibus Plan. This number of shares includes the shares available under the Third Point Reinsurance Ltd. Share Incentive Plan ("Share Incentive Plan"). Awards under the Omnibus Plan may be made in the form of performance awards, restricted shares, restricted share units, share options, share appreciation rights and other share-based awards.
	As of June 30, 2014, 10,255,525 (December 31, 2013 - 10,613,975) of the Company's common shares were available for future issuance under the equity incentive compensation plans.
	Share based compensation expense of $2.2 million for the three months ended June 30, 2014 (2013 - $1.7 million) was included in general and administrative expenses. Share based compensation expense of $4.5 million for the six months ended June 30, 2014 (2013 - $3.5 million) was included in general and administrative expenses.
	As of June 30, 2014, the Company had $20.7 million (December 31, 2013 - $23.8 million) of unamortized share compensation expense that is expected to be amortized over a weighted average period of 1.8 years (December 31, 2013 - 2.0 years).
	(a)	Management and director options
	The share options issued to management under the Share Incentive Plan prior to the IPO are subject to a service condition and a performance condition. The service condition will be met with respect to 20% of the management options on each of the first five anniversary dates following the grant date of the management options. The performance condition with respect to the management options was met as a result of the IPO. Prior to the IPO, 8,572,594 of the management options outstanding had met the performance condition. After the IPO, the remaining 2,357,633 management options had met the performance condition.
	The director options contain only a service condition that will be met with respect to 20% of the director options on each of the five anniversary dates following the grant date of the director options. On November 6, 2013, the director options were modified so that a total of 60% of the outstanding options vested on that date and the remaining 40% of the director options were forfeited. These forfeited options were replaced with restricted share awards.
	The management and director options activity for the six months ended June 30, 2014 and the year ended December 31, 2013 were as follows:
		Number of		Weighted
		options		average exercise
				price
	Balance as of January 1, 2013	10,956,838		$	13.2
	Granted - employees	348,836		14.09
	Granted - directors	—		—
	Forfeited	(324,599	)	13.2
	Exercised	—		—
	Balance as of December 31, 2013	10,981,075		13.23
	Granted - employees	348,836		18.25
	Granted - directors	—		—
	Forfeited	—		—
	Exercised	—		—
	Balance as of June 30, 2014	11,329,911		$	13.38
	The fair value of share options issued were estimated on the grant date using the Black-Scholes option-pricing model. The share price used for purposes of determining the fair value of share options that were granted in the six months ended June 30, 2014 was $15.05. The estimated share price used for purposes of determining the fair value of share options that were granted in the second quarter of 2013 (prior to the IPO) was $10.89. The volatility assumption used was 23.1% (2013 - 22.0%). The other assumptions used in the option-pricing model were as follows: risk free interest rate of 2.2% (2013 - 1.2%), expected life of 6.5 years (2013 - 6.5 years) and a 0.0% dividend yield (2013 - 0.0%). As of June 30, 2014, the weighted average remaining contractual term for options outstanding was 7.6 years (2013 - 8.1 years).
	The following table summarizes information about the Company’s management and director share options outstanding as of June 30, 2014:
		Options outstanding				Options exercisable
	Range of exercise prices	Number of		Weighted		Number of	Weighted
		options		average		options	average
				exercise price			exercise price
	$10.00-$10.89	6,588,647		$10.03		2,346,787	$10.02
	$15.05-$16.89	2,405,516		$15.94		782,262	$16.02
	$20.00-$25.05	2,335,748		$20.21		782,262	$20.02
		11,329,911		$13.38		3,911,311	$13.22
	For the three months ended June 30, 2014, the Company recorded $1.7 million (2013 - $1.5 million) of share compensation expense related to share options. For the six months ended June 30, 2014, the Company recorded $3.4 million (2013 - $2.8 million) of share compensation expense related to share options.
	The aggregate intrinsic value of options outstanding and options exercisable as of June 30, 2014 was $34.5 million and $12.3 million, respectively (December 31, 2013 - $61.5 million and $17.6 million, respectively).
	(b)	Restricted shares
	Restricted shares vest either ratably or at the end of the required service period and contain certain restrictions during the vesting period, relating to, among other things, forfeiture in the event of termination of employment or service and transferability.
	Restricted share award activity for the six months ended June 30, 2014 and year ended December 31, 2013 was as follows:
		Number of non-		Weighted
		vested restricted		average grant
		shares		date fair value
	Balance as of January 1, 2013	619,300		$	10
	Granted	37,856		15.22
	Forfeited	—		—
	Vested	—		—
	Balance as of December 31, 2013	657,156		10.25
	Granted	9,614		15.29
	Forfeited	—		—
	Vested	—		—
	Balance as of June 30, 2014	666,770		$	10.37
	For the three months ended June 30, 2014, the Company issued 6,489 (2013 - nil) restricted shares to employees. For the six months ended June 30, 2014, the Company issued 9,614 (2013 - 5,000) restricted shares to employees. The restricted shares issued to employees in 2014 will vest after three years from the date of issuance, subject to the grantee's continued service with the Company. The restricted shares issued in 2013 to employees vest two years from the date of grant and restricted shares issued to directors vest on December 31, 2014, subject to the grantee's continued service with the Company.
	For the three months ended June 30, 2014, the Company recorded $0.5 million (2013 - $0.2 million) compensation expense related to restricted share awards. For the six months ended June 30, 2014, the Company recorded $1.1 million (2013 - $0.7 million) compensation expense related to restricted share awards.

Noncontrolling_interests

Non-controlling interests	6 Months Ended
	Jun. 30, 2014
Noncontrolling Interest [Abstract]	'
Non-controlling interests	'
	Non-controlling interests
	Non-controlling interests represent the portion of equity in consolidated subsidiaries not attributable, directly or indirectly, to the Company. The ownership interests in consolidated subsidiaries held by parties other than the Company have been presented in the condensed consolidated balance sheets, as a separate component of shareholders’ equity. Non-controlling interests as of June 30, 2014 and December 31, 2013 are as follows:
		June 30, 2014			December 31, 2013
		($ in thousands)
	Catastrophe Fund	$	56,024		$	49,254
	Catastrophe Fund Manager	(326		)	(236		)
	Joint Venture - Third Point Advisors LLC share	20,210			69,717
		$	75,908		$	118,735
	Income (loss) attributable to non-controlling interests for the three and six months ended June 30, 2014 and 2013 was:
		For the three months ended						For the six months ended
		June 30,			June 30,			June 30,			June 30,
		2014			2013			2014			2013
		($ in thousands)
	Catastrophe Fund	$	369		$	178		$	619		$	757
	Catastrophe Fund Manager	(31		)	(98		)	(90		)	(162		)
	Joint Venture - Third Point Advisors LLC share	669			221			1,494			789
		$	1,007		$	301		$	2,023		$	1,384
	As of June 30, 2014, the following entities were consolidated in line with voting model per ASC 810: Consolidation:
	• Third Point Reinsurance Opportunities Fund Ltd.
	• Third Point Re Cat Ltd.
	• Third Point Reinsurance Investment Management Ltd.
	As of June 30, 2014, the following entities were consolidated in line with variable interest model as per ASC 810: Consolidation:
	• Investment Joint Venture
	a)	Third Point Reinsurance Opportunities Fund Ltd. and Third Point Re Cat Ltd.
	As of June 30, 2014, Third Point Re's investment in the Catastrophe Fund was $55.4 million (December 31, 2013 - $54.8 million), representing approximately 49.9% (December 31, 2013 - 53.0%) of the Catastrophe Fund’s issued, non-voting, participating share capital. The objective of the Catastrophe Fund is to achieve positive uncorrelated investment returns by investing, through the Catastrophe Reinsurer, in a portfolio of collateralized reinsurance transactions and other insurance-linked investments, including catastrophe bonds and industry loss warranties.
	The Catastrophe Fund Manager holds 100% of the authorized and issued voting, nonparticipating shares of the Catastrophe Fund, while the Catastrophe Fund’s investors, including Third Point Re, hold 100% of issued non-voting, participating shares.
	Furthermore, 100% of the authorized and issued voting, non-participating share capital of the Catastrophe Reinsurer and 100% of the issued non-voting, participating share capital of the Catastrophe Reinsurer is held by the Catastrophe Fund.
	b)	Third Point Reinsurance Investment Management Ltd. (the “Catastrophe Fund Manager”)
	The Catastrophe Fund Manager has been consolidated as part of the Company with Hiscox’s 15% interest in the Catastrophe Fund Manager recorded as a non-controlling interest. The Catastrophe Fund Manager acts as manager for both the Catastrophe Fund and the Catastrophe Reinsurer and in that capacity is responsible for overseeing:
	•	The investment activities of the Catastrophe Fund, and
	•	The underwriting activities of the Catastrophe Reinsurer.
	The Catastrophe Fund Manager does not participate in the profits or losses of either the Catastrophe Fund or the Catastrophe Reinsurer; however, the Catastrophe Fund Manager does receive management and performance fees for its services.
	c)	Investment in Joint Venture
	The joint venture created through the Investment Agreement (Note 10) has been considered a variable interest entity in accordance with U.S. GAAP. Since the Company was deemed to be the primary beneficiary, the Company has consolidated the joint venture and has recorded Third Point Advisors LLC’s minority interest as a non-controlling interest in the condensed consolidated statements of shareholders’ equity.
	For the six months ended June 30, 2014, $51.0 million (2013 - $35.1 million) was distributed to Third Point Advisors LLC and reduced the amount of the non-controlling interest.

Earnings_per_share

Earnings per share	6 Months Ended
	Jun. 30, 2014
Earnings Per Share [Abstract]	'
Earnings per share	'
	Earnings per share
	The following sets forth the computation of basic and diluted earnings per share for the three and six months ended June 30, 2014 and 2013:
			For the three months ended						For the six months ended
			30-Jun-14			30-Jun-13			30-Jun-14			30-Jun-13
	Weighted-average number of common shares outstanding:
		Basic number of common shares outstanding	103,264,616			78,432,132			103,264,616			78,432,132
		Dilutive effect of options	1,490,091			22,216			1,520,726			—
		Dilutive effect of warrants	1,679,174			799,920			1,720,373			715,840
		Diluted number of common shares outstanding	106,433,881			79,254,268			106,505,715			79,147,972
	Basic net income per common share:
		Net income	$	31,292		$	26,223		$	71,071		$	100,653
		Net income allocated to participating shares	(200		)	(206		)	(452		)	(790		)
		Net income available to common shareholders	$	31,092		$	26,017		$	70,619		$	99,863
		Basic net income per common share	$	0.3		$	0.33		$	0.68		$	1.27
	Diluted net income per common share:
		Net income	$	31,292		$	26,223		$	71,071		$	100,653
		Income allocated to participating securities	(194		)	(204		)	(439		)	(783		)
		Net income available to common shareholders	$	31,098		$	26,019		$	70,632		$	99,870
		Diluted net income per common share	$	0.29		$	0.33		$	0.66		$	1.26
	For the three months ended June 30, 2014 and 2013, anti-dilutive options of 4,531,962 and 3,462,938, respectively, were excluded from the computation of diluted earnings per share.
	For the six months ended June 30, 2014 and 2013, anti-dilutive options of 4,489,327 and 3,423,925, respectively, were excluded from the computation of diluted earnings per share.

Related_party_transactions

Related party transactions	6 Months Ended
	Jun. 30, 2014
Related Party Transactions [Abstract]	'
Related party transactions	'
	Related party transactions
	In addition to the transactions disclosed in Notes 5, 10 and 17 to these condensed consolidated financial statements, the following transactions are classified as related party transactions, as each counterparty has either a direct or indirect shareholding in the Company or the Company has an investment with such counterparty.
	a)	Pine Brook Road Partners, LLC and Narragansett Bay Insurance Company
	Third Point Re entered into a quota share reinsurance agreement with Narragansett Bay Insurance Company (“Narragansett Bay”) effective December 31, 2012, which was renewed on December 31, 2013. The Company recorded $3.5 million (2013 - $3.0 million) of net premiums earned related to these contracts for the six months ended June 30, 2014.  Pine Brook Road Partners, LLC ("Pine Brook") is the manager of various investment funds, one of which owns approximately 12.0% (December 31, 2013 - 12.0%) of the Company's outstanding common shares.  Pine Brook is also the manager of an investment fund that owns common shares in Narragansett Bay.
	b)	TP Lux Holdco LP
	Third Point Re entered into a limited partnership agreement, as one of the limited partners of TP Lux Holdco LP (the “Cayman HoldCo”), which is also 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”), which is also an affiliate of the Investment Manager.
	The LuxCo was established under the laws of the Grand-Duchy of Luxembourg and its principal objective is to act as a collective investment vehicle to purchase Euro debt and equity investments. Third Point Re invests in the Cayman HoldCo alongside other investment funds managed by the Investment Manager. As of June 30, 2014, Third Point Re held a 10.7% (December 31, 2013 - 10.0%) interest in the Cayman Holdco. Third Point Re accounts for its investment in the limited partnership under the variable interest model, in which Third Point Re is not the primary beneficiary, at fair value in the condensed consolidated balance sheets and records changes in fair value in the condensed consolidated statements of income.
	As of June 30, 2014, the estimated fair value of the investment in the limited partnership was $66.5 million (December 31, 2013 - $29.3 million).  The valuation policy with respect to this investment in a limited partnership is further described in Note 5.
	c)	Third Point Loan L.L.C.
	Third Point Loan L.L.C. (“Loan LLC”) serves as nominee of Third Point Re and other affiliated investment management clients of the Investment Manager for certain investments. Loan LLC has appointed the Investment Manager as its true and lawful agent and attorney. As of June 30, 2014, Loan LLC held $72.6 million (December 31, 2013 - $147.2 million) of Third Point Re’s investments, which are included in investments in securities and commodities and in derivative contracts in the condensed consolidated balance sheets. Third Point Re’s pro rata interest in the underlying investments registered in the name of Loan LLC and the related income and expense are reflected accordingly in the condensed consolidated balance sheets and the condensed consolidated statements of income.
	d)	Third Point Hellenic Recovery US Feeder Fund, L.P.
	Third Point Re is a limited partner in Third Point Hellenic Recovery US Feeder Fund, L.P. (“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 and invests and holds debt and equity interests.
	Third Point Re committed $11.4 million to the Hellenic Fund, of which $0.05 million was called and $0.4 million was distributed during the six months ended June 30, 2014. As of June 30, 2014, the estimated fair value of Third Point Re’s investment in the Hellenic Fund was $5.8 million (December 31, 2013 - $5.3 million). The valuation policy with respect to this investment in a limited partnership is further described in Note 5.
	As of June 30, 2014, Third Point Re held less than a 2.0% (December 31, 2013 - 2.0%) interest in the Hellenic Fund. Third Point Re accounts for its investment in the Hellenic Fund under the variable interest model, in which Third Point Re is not the primary beneficiary, at fair value in the condensed consolidated balance sheets and records the change in the fair value in the condensed consolidated statements of income.

Financial_instruments_with_off

Financial instruments with off-balance sheet risk or concentrations of credit risk	6 Months Ended
	Jun. 30, 2014
Guarantees [Abstract]	'
Financial instruments with off-balance sheet risk or concentrations of credit risk	'
	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, 2014, the investment portfolio had a maximum payout amount of approximately $363.3 million (December 31, 2013 - $689.5 million) relating to written put option contracts with expiration ranging from one month to 10 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, 2014 is $1.6 million (December 31, 2013 - $2.6 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 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, 2014, 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, 2014 and December 31, 2013:
	June 30, 2014		Maximum Payout/ Notional Amount (by period of expiration)						Fair Value of Written Credit Derivatives (2)
	Credit Spreads on		0-5 years		5 years or		Total Written		Asset		Liability			Net Asset/(Liability)
	underlying (basis				Greater Expiring Through 2047		Credit Default
	points)						Swaps (1)
			($ in thousands)
	Single name (0 - 250)		$	—	$	4,555	$	4,555	$	—	$	1,254		$	(1,254	)
	Single name (251-500)		9,105		2,376		11,481		1,221		—			1,221
	Index (0-250)		—		—		—		—		—			—
			$	9,105	$	6,931	$	16,036	$	1,221	$	1,254		$	(33	)
	December 31, 2013		Maximum Payout/ Notional Amount (by period of expiration)						Fair Value of Written Credit Derivatives (2)
	Credit Spreads on		0-5 years		5 years or		Total Written		Asset		Liability			Net Asset/(Liability)
	underlying (basis				Greater Expiring Through 2046		Credit Default
	points)						Swaps (1)
			($ in thousands)
	Single name (0 - 250)		$	368	$	—	$	368	$	—	$	(104	)	$	(104	)
	Single name (251-500)		9,514		—		9,514		1,136		—			1,136
	Index (0-250)		—		550		550		21		(244		)	(223		)
			$	9,882	$	550	$	10,432	$	1,157	$	(348	)	$	809
	-1	As of June 30, 2014 and December 31, 2013, 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
	In addition to off-balance sheet risks related to specific financial instruments, the Company may be subject to concentration of credit risk with particular counterparties. Substantially all securities transactions of the Company are cleared by several major securities firms. The Company had substantially all such individual counterparty concentration with these brokers or their affiliates as of June 30, 2014. 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 joint venture created through the Investment Agreement (Note 10) 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 counterparty inherent in such contracts which are recognized in the condensed consolidated balance sheets. As of June 30, 2014, the Company’s maximum counterparty credit risk exposure was $7.8 million (December 31, 2013 - $19.0 million).

Commitments_and_Contingencies

Commitments and Contingencies	6 Months Ended
	Jun. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Commitments and Contingencies	'
	Commitments and Contingencies
	Letters of credit
	As of June 30, 2014, the Company had entered into the following letter of credit facilities, which automatically renew annually unless terminated by either party in accordance with the required notice period:
		Facility		Renewal date	Notice period (Unused Facility Portion)
		($ in thousands)
	BNP Paribas	$	100,000	February 15, 2015	60 days prior to termination date
	Citibank (1)	150,000		January 23, 2015	90 days prior to termination date
	J.P. Morgan	50,000		August 22, 2015	60 days prior to termination date
		$	300,000
	(1) Effective July 9, 2014, we increased our Citibank facility from $150 million to $250 million. All other terms of the facility remained the same.
	As of June 30, 2014, $128.0 million (December 31, 2013 - $127.3 million) of letters of credit, representing 42.7% (December 31, 2013 – 42.4%) of the total available facilities, had been drawn upon.
	Under the facilities, the Company provides collateral that may consist of equity securities, repurchase agreements and cash and cash equivalents. As of June 30, 2014, cash and cash equivalents with a fair value of $128.4 million (December 31, 2013 - $100.6 million) were pledged as security against the letters of credit issued. These amounts are included in restricted cash and cash equivalents in the condensed consolidated balance sheets. Each of the facilities contain customary events of default and restrictive covenants, including but not limited to, limitations on liens on collateral, transactions with affiliates, mergers and sales of assets, as well as solvency and maintenance of certain minimum pledged equity requirements, A.M. Best Company rating of “A-” or higher, and restricts issuance of any debt without the consent of the letter of credit provider. Additionally, if an event of default exists, as defined in the letter of credit facilities, the Company will be prohibited from paying dividends. The Company was in compliance with all of the covenants as of June 30, 2014.
	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. As of June 30, 2014, the Company had no unfunded capital commitments.
	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 Third Point Advisors LLC, 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.
	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. While the final outcome of legal disputes that may arise cannot be predicted with certainty, the Company is not currently involved in any formal or informal dispute resolution procedures.

Segment_reporting

Segment reporting	6 Months Ended
	Jun. 30, 2014
Segment Reporting [Abstract]	'
Segment reporting	'
	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 two operating segments – Property and Casualty Reinsurance and Catastrophe Risk Management. The Company has also identified a corporate function that includes net investment income on capital and certain general and administrative expenses related to corporate activities.
	Effective January 1, 2014, the Company modified the presentation of its operating segments to allocate net investment income from float to the property and casualty reinsurance segment. The property and casualty reinsurance operations generate excess cash flows, or float, which the Company tracks in managing the business. The Company considers net investment income on float in evaluating the overall contribution of the property and casualty reinsurance segment. Prior period segment results have been adjusted to conform to this presentation.
	The following is a summary of the Company’s operating segments results for the three and six months ended June 30, 2014 and 2013:
		Three months ended June 30, 2014
		Property and Casualty Reinsurance			Catastrophe Risk Management				Corporate				Total
	Revenues	($ in thousands)
	Gross premiums written	$	140,422		$	5,086			$	—			$	145,508
	Gross premiums ceded	—			—				—				—
	Net premiums written	140,422			5,086				—				145,508
	Change in net unearned premium reserves	(62,934		)	(3,824		)		—				(66,758		)
	Net premiums earned	77,488			1,262				—				78,750
	Expenses
	Loss and loss adjustment expenses incurred, net	44,409			—				—				44,409
	Acquisition costs, net	29,507			76				—				29,583
	General and administrative expenses	5,655			678				3,216				9,549
	Total expenses	79,571			754				3,216				83,541
	Net underwriting loss	(2,083		)	n/a				n/a				n/a
	Net investment income	6,282			33				34,170				40,485
	Other expenses	(1,020		)	—				—				(1,020		)
	Income tax expense	—			—				(2,375		)		(2,375		)
	Segment income including non-controlling interests	3,179			541				28,579				32,299
	Segment income attributable to non-controlling interests	—			(338		)		(669		)		(1,007		)
	Segment income	$	3,179		$	203			$	27,910			$	31,292
	Property and Casualty Reinsurance - Underwriting Ratios:
	Loss ratio (1)	57.3		%
	Acquisition cost ratio (2)	38.1		%
	Composite ratio (3)	95.4		%
	General and administrative expense ratio (4)	7.3		%
	Combined ratio (5)	102.7		%
	-1	Loss ratio is calculated by dividing loss and loss adjustment expenses incurred, net by net premiums earned.
	-2	Acquisition cost ratio is calculated by dividing acquisition costs, net by net premiums earned.
	-3	Composite ratio is calculated by dividing the sum of loss and loss adjustment expenses incurred, net and acquisition costs, net by net premiums earned.
	-4	General and administrative expense ratio is calculated by dividing general and administrative expenses related to underwriting activities by net premiums earned.
	-5	Combined ratio is calculated by dividing the sum of loss and loss adjustment expenses incurred, net, acquisition costs, net and general and administrative expenses related to underwriting activities by net premiums earned.
		Three Months Ended June 30, 2013
		Property and Casualty Reinsurance			Catastrophe Risk Management				Corporate				Total
	Revenues	($ in thousands)
	Gross premiums written	$	94,644		$	3,571			$	—			$	98,215
	Gross premiums ceded	—			—				—				—
	Net premiums written	94,644			3,571				—				98,215
	Change in net unearned premium reserves	(33,206		)	(2,722		)		—				(35,928		)
	Net premiums earned	61,438			849				—				62,287
	Expenses
	Loss and loss adjustment expenses incurred, net	45,304			388				—				45,692
	Acquisition costs, net	14,821			100				—				14,921
	General and administrative expenses	4,710			987				1,520				7,217
	Total expenses	64,835			1,475				1,520				67,830
	Net underwriting loss	(3,397		)	n/a				n/a				n/a
	Net investment income	2,530			359				29,937				32,826
	Other expenses	(759		)	—				—				(759		)
	Segment income (loss) including non-controlling interests	(1,626		)	(267		)		28,417				26,524
	Segment income attributable to non-controlling interests	—			(80		)		(221		)		(301		)
	Segment (loss) income	$	(1,626	)	$	(347	)		$	28,196			$	26,223
	Property and Casualty Reinsurance - Underwriting Ratios:
	Loss ratio (1)	73.7		%
	Acquisition cost ratio (2)	24.1		%
	Composite ratio (3)	97.8		%
	General and administrative expense ratio (4)	7.7		%
	Combined ratio (5)	105.5		%
	-1	Loss ratio is calculated by dividing loss and loss adjustment expenses incurred, net by net premiums earned.
	-2	Acquisition cost ratio is calculated by dividing acquisition costs, net by net premiums earned.
	-3	Composite ratio is calculated by dividing the sum of loss and loss adjustment expenses incurred, net and acquisition costs, net by net premiums earned.
-4	General and administrative expense ratio is calculated by dividing general and administrative expenses related to underwriting activities by net premiums earned.
-5	Combined ratio is calculated by dividing the sum of loss and loss adjustment expenses incurred, net, acquisition costs, net and general and administrative expenses related to underwriting activities by net premiums earned.
	Six months ended June 30, 2014
	Property and Casualty Reinsurance			Catastrophe Risk Management				Corporate				Total
Revenues	($ in thousands)
Gross premiums written	$	222,564		$	10,531			$	—			$	233,095
Gross premiums ceded	—			—				—				—
Net premiums written	222,564			10,531				—				233,095
Change in net unearned premium reserves	(72,775		)	(8,308		)		—				(81,083		)
Net premiums earned	149,789			2,223				—				152,012
Expenses
Loss and loss adjustment expenses incurred, net	90,668			—				—				90,668
Acquisition costs, net	54,906			108				—				55,014
General and administrative expenses	11,464			1,512				6,598				19,574
Total expenses	157,038			1,620				6,598				165,256
Net underwriting loss	(7,249		)	n/a				n/a				n/a
Net investment income	13,595			62				76,863				90,520
Other expenses	(1,807		)	—				—				(1,807		)
Income tax expense	—			—				(2,375		)		(2,375		)
Segment income including non-controlling interests	4,539			665				67,890				73,094
Segment income attributable to non-controlling interests	—			(529		)		(1,494		)		(2,023		)
Segment income	$	4,539		$	136			$	66,396			$	71,071
Property and Casualty Reinsurance - Underwriting Ratios:
Loss ratio (1)	60.5		%
Acquisition cost ratio (2)	36.7		%
Composite ratio (3)	97.2		%
General and administrative expense ratio (4)	7.7		%
Combined ratio (5)	104.9		%
-1	Loss ratio is calculated by dividing loss and loss adjustment expenses incurred, net by net premiums earned.
-2	Acquisition cost ratio is calculated by dividing acquisition costs, net by net premiums earned.
-3	Composite ratio is calculated by dividing the sum of loss and loss adjustment expenses incurred, net and acquisition costs, net by net premiums earned.
-4	General and administrative expense ratio is calculated by dividing general and administrative expenses related to underwriting activities by net premiums earned.
-5	Combined ratio is calculated by dividing the sum of loss and loss adjustment expenses incurred, net, acquisition costs, net and general and administrative expenses related to underwriting activities by net premiums earned.
	Six months ended June 30, 2013
	Property and Casualty Reinsurance			Catastrophe Risk Management				Corporate				Total
Revenues	($ in thousands)
Gross premiums written	$	187,515		$	6,720			$	—			$	194,235
Gross premiums ceded	(9,975		)	—				—				(9,975		)
Net premiums written	177,540			6,720				—				184,260
Change in net unearned premium reserves	(83,459		)	(4,973		)		—				(88,432		)
Net premiums earned	94,081			1,747				—				95,828
Expenses
Loss and loss adjustment expenses incurred, net	63,942			388				—				64,330
Acquisition costs, net	27,811			183				—				27,994
General and administrative expenses	9,526			1,772				2,927				14,225
Total expenses	101,279			2,343				2,927				106,549
Net underwriting loss	(7,198		)	n/a				n/a				n/a
Net investment income	8,056			1,122				105,009				114,187
Other expenses	(1,429		)	—				—				(1,429		)
Segment income (loss) including non-controlling interests	(571		)	526				102,082				102,037
Segment income attributable to non-controlling interests	—			(595		)		(789		)		(1,384		)
Segment (loss) income	$	(571	)	$	(69	)		$	101,293			$	100,653
Property and Casualty Reinsurance - Underwriting Ratios:
Loss ratio (1)	68		%
Acquisition cost ratio (2)	29.6		%
Composite ratio (3)	97.6		%
General and administrative expense ratio (4)	10.1		%
Combined ratio (5)	107.7		%
-1	Loss ratio is calculated by dividing loss and loss adjustment expenses incurred, net by net premiums earned.
-2	Acquisition cost ratio is calculated by dividing acquisition costs, net by net premiums earned.
-3	Composite ratio is calculated by dividing the sum of loss and loss adjustment expenses incurred, net and acquisition costs, net by net premiums earned.
-4	General and administrative expense ratio is calculated by dividing general and administrative expenses related to underwriting activities by net premiums earned.
-5	Combined ratio is calculated by dividing the sum of loss and loss adjustment expenses incurred, net, acquisition costs, net and general and administrative expenses related to underwriting activities by net premiums earned.
For the three months ended June 30, 2014, three contracts each contributed greater than 10.0% of total gross premiums written. These three contracts contributed 20.5%, 11.6% and 10.0%, respectively, of total gross premiums written for the three months ended June 30, 2014. For the three months ended June 30, 2013, five contracts each contributed greater than 10% of total gross premiums written. These five contracts contributed 22.7%, 17.0%, 14.6%, 14.1% and 14.0%, respectively, of total gross premiums written for the three months ended June 30, 2013.
For the six months ended June 30, 2014, two contracts each contributed greater than 10.0% of total gross premiums written. These two contracts contributed 20.0% and 12.8%, respectively, of total gross premiums written for the six months ended June 30, 2014. For the six months ended June 30, 2013, three contracts each contributed greater than 10% of total gross premiums written. These three contracts contributed 18.0%, 18.0% and 11.5%, respectively, of total gross premiums written for the six months ended June 30, 2013.
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, 2014 and 2013:
	For the three months ended
	30-Jun-14						30-Jun-13
	($ in thousands)
Property	$	74,505		51.2	%		$	27,888			28.4	%
Casualty	65,343			44.9	%		49,388				50.3	%
Specialty	574			0.4	%		17,368				17.7	%
Total property and casualty reinsurance	140,422			96.5	%		94,644				96.4	%
Catastrophe risk management	5,086			3.5	%		3,571				3.6	%
	$	145,508		100	%		$	98,215			100	%
	For the six months ended
	30-Jun-14						30-Jun-13
	($ in thousands)
Property	$	81,386		34.9	%		$	28,238			14.5	%
Casualty	115,766			49.7	%		101,595				52.3	%
Specialty	25,412			10.9	%		57,682				29.7	%
Total property and casualty reinsurance	222,564			95.5	%		187,515				96.5	%
Catastrophe risk management	10,531			4.5	%		6,720				3.5	%
	$	233,095		100	%		$	194,235			100	%
The following table provides a breakdown of the Company’s gross premiums written by prospective and retroactive reinsurance contracts for the three and six months ended June 30, 2014 and 2013:
	For the three months ended													For the six months ended
	June 30, 2014						June 30, 2013							June 30, 2014				June 30, 2013
	($ in thousands)
Prospective	$	144,934		99.6	%		$	75,915			77.3	%		$	230,419	98.9	%	$	171,935	88.5	%
Retroactive	574			0.4	%		22,300				22.7	%		2,676		1.1	%	22,300		11.5	%
	$	145,508		100	%		$	98,215			100	%		$	233,095	100	%	$	194,235	100	%
The Company records the gross premium written and earned at the inception of the contract for retroactive reinsurance contracts.
Substantially all of the Company's business is sourced through reinsurance brokers. The following table provides a breakdown of the Company's gross premiums written from brokers for the six months ended June 30, 2014 and 2013:
	2014						2013
	($ in thousands)
Willis Re	$	57,047		24.5	%		$	13,421			6.9	%
Advocate Reinsurance Partners, LLC	53,004			22.7	%		27,647				14.2	%
Stonehill Reinsurance Partners, LLC	46,659			20	%		—				—	%
Aon Benfield - a division of Aon plc	16,793			7.2	%		81,357				41.9	%
Guy Carpenter & Company, LLC	15,074			6.5	%		(11,057		)		(5.7	)%
TigerRisk Partners LLC	14,496			6.2	%		9,531				4.9	%
BMS Intermediaries	—			—	%		10,019				5.2	%
Other brokers	2,984			1.3	%		7,097				3.7	%
Total broker placed	206,057			88.4	%		138,015				71.1	%
Direct placements	27,038			11.6	%		56,220				28.9	%
	$	233,095		100	%		$	194,235			100	%
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 June 30, 2014 and 2013:
	For the three months ended													For the six months ended
	30-Jun-14						30-Jun-13							30-Jun-14				30-Jun-13
	($ in thousands)
United States	$	144,657		99.4	%		$	93,992			95.7	%		$	202,734	87	%	$	143,650	74	%
United Kingdom	575			0.4	%		—				—	%		25,413		10.9	%	—		—	%
Bermuda	276			0.2	%		4,223				4.3	%		4,948		2.1	%	49,185		25.3	%
Other	—			—	%		—				—	%		—		—	%	1,400		0.7	%
	$	145,508		100	%		$	98,215			100	%		$	233,095	100	%	$	194,235	100	%

Significant_accounting_policie1

Significant accounting policies (Policies)	6 Months Ended
	Jun. 30, 2014
Accounting Policies [Abstract]	'
Use of estimates	'
	Use of estimates
	The preparation of consolidated financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported and disclosed amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The major estimates reflected in the Company’s condensed consolidated financial statements include, but are not limited to, the loss and loss adjustment expense reserves, estimates of written and earned premiums and fair value of financial instruments.
Cash and restricted cash and cash equivalents	'
	Cash and restricted cash and cash equivalents
	Cash and cash equivalents consist of cash held in banks and other short-term, highly liquid investments with original maturity dates of ninety days or less.
	Restricted cash and cash equivalents consist of cash held in trust accounts with the Catastrophe Reinsurer, securing collateralized reinsurance contracts written and cash held with brokers securing letters of credit issued under credit facilities.
Premium revenue recognition	'
	Premium revenue recognition
	To the extent that the amount of written premium is estimable, the Company estimates the ultimate premiums for the entire contract period and records this estimate at the inception of the contract. For contracts where the full written premium is not estimable at inception, the Company records written premium for the portion of the contract period for which the amount is estimable. These estimates are based primarily on information in the underlying contracts as well as information provided by clients and/or brokers.
	Premiums written are earned over the exposure period in proportion to the period of risk covered. Unearned premiums represent the portion of premiums written that relate to the remaining term of the underlying policies in force.
	Premiums for retroactive reinsurance contracts are earned at the inception of the contract, as all of the underlying loss events covered by these contracts occurred in the past. Any underwriting profit at inception of a retroactive reinsurance contract is deferred and recognised over the estimated future payout of the loss and loss adjustment expenses reserves. Any underwriting loss at inception of a retroactive reinsurance contract is recognised immediately.
	Changes in premium estimates are expected and may result in adjustments in any reporting period. These estimates change over time as additional information regarding the underlying business volume is obtained. Any subsequent adjustments arising on such estimates are recorded in the period in which they are determined.
Reinsurance premiums ceded	'
	Reinsurance premiums ceded
	From time to time the Company reduces the risk of losses on business written by reinsuring certain risks and exposures with other reinsurers. The Company remains liable to the extent that any retrocessionaire fails to meet its obligations and to the extent that the Company does not hold sufficient security for their unpaid obligations. Ceded premiums are written during the period in which the risks incept and are expensed over the contract period in proportion to the period of risk covered. Unearned premiums ceded consist of the unexpired portion of reinsurance ceded.
Deferred acquisition costs	'
	Deferred acquisition costs
	Acquisition costs consist of commissions, brokerage and excise taxes that are related directly to the successful acquisition of new or renewal reinsurance contracts. These costs are deferred and amortized over the period in which the related premiums are earned. The Company evaluates the recoverability of deferred acquisition costs by determining if the sum of future earned premiums and anticipated investment income is greater than expected future loss and loss adjustment expenses and acquisition costs. If a loss is probable on the unexpired portion of contracts in force, a premium deficiency loss is recognized. As of June 30, 2014, deferred acquisition costs are considered to be fully recoverable and no premium deficiency has been recorded.
	Acquisition costs also include profit commissions that are expensed when incurred. Profit commissions are calculated and accrued based on the expected loss experience for contracts and recorded when the current loss estimate indicates that a profit commission is probable under the contract terms.
Loss and loss adjustment expense reserves	'
	Loss and loss adjustment expense reserves
	The Company’s loss and loss adjustment expense reserves include case reserves and reserves for losses incurred but not yet reported (“IBNR reserves”). Case reserves are established for losses that have been reported, but not yet paid, based on loss reports from brokers and ceding companies. IBNR reserves represent the estimated loss and loss adjustment expenses that have been incurred by insureds and reinsureds but not yet reported to the insurer or reinsurer, including unknown future developments on loss and loss adjustment expenses that are known to the insurer or reinsurer. IBNR reserves are established by management based on actuarially determined estimates of ultimate loss and loss adjustment expenses.
	Inherent in the estimate of ultimate loss and loss adjustment expenses are expected trends in claim severity and frequency and other factors that may vary significantly as claims are settled. Accordingly, ultimate loss and loss adjustment expenses may differ materially from the amounts recorded in the condensed consolidated financial statements. These estimates are reviewed regularly and, as experience develops and new information becomes known, the reserves are adjusted as necessary. Such adjustments, if any, are recorded in the condensed consolidated statements of income in the period in which they become known.
Deposit liabilities	'
	Deposit liabilities
	Certain contracts do not transfer sufficient insurance risk to be deemed reinsurance contracts and are accounted for using the deposit method of accounting. Management exercises judgment in determining whether contracts transfer sufficient risk to be accounted for as reinsurance contracts. Using the deposit method of accounting, a deposit liability, rather than written premium, is initially recorded based upon the consideration received less any explicitly identified premiums or fees. In subsequent periods, the deposit liability is adjusted by calculating the effective yield on the deposit to reflect actual payments to date and future expected payments.
Fair value measurement	'
	Fair value measurement
	The Company determines the fair value of financial instruments in accordance with current accounting guidance, which defines fair value and establishes a three level fair value hierarchy based upon the transparency of inputs used in the valuation of an asset or liability. Fair value is defined as the price the Company would receive to sell an asset or would pay to transfer a liability in an orderly transaction between market participants at the measurement date. The Company determines the estimated fair value of each individual security utilizing the highest level inputs available.
	The fair value of the Company’s assets and liabilities, which qualify as financial instruments, approximates the carrying amounts presented in the condensed consolidated balance sheets.
Investments	'
	Investments
	The Company’s investments are classified as “trading securities” and are carried at fair value with changes in fair value included in earnings in the condensed consolidated statements of income.
	The fair value of the Company’s investments are based on quoted market prices, or when such prices are not available, by reference to broker or underwriter bid indications and/or internal pricing valuation techniques. Investment transactions are recorded on a trade date basis with balances pending settlement included in due to/from brokers in the condensed consolidated balance sheets.
	Realized gains and losses are determined using cost calculated on the specific identification basis. Dividends are recorded on the ex-dividend date. Income and expense are recorded on the accrual basis including interest and premiums amortized and discounts accreted.
Derivatives	'
	Derivatives
	Underwriting
	The Catastrophe Reinsurer enters into certain contracts for which the potential loss payments are triggered exclusively by reference to a specified index, such as an industry loss. These contracts are accounted for as derivatives. The Company records the fair value of these contracts in derivative liabilities, at fair value, in the condensed consolidated balance sheets. Changes in the fair value of these contracts are recorded in net investment income in the condensed consolidated statements of income.
	Investments
	Derivative instruments within our separate account managed by our investment manager, Third Point LLC, are recorded in the condensed consolidated balance sheets at fair value, with changes in fair values and realized gains and losses recognized in net investment income in the condensed consolidated statements of income.
	Derivatives serve as a key component of the Company’s investment strategy and are utilized primarily to structure the portfolio, or individual investments, and to economically match the investment objectives of the Company. The Company's derivatives do not qualify as hedges for financial reporting purposes and are recorded in the condensed consolidated balance sheets on a gross basis and not offset against any collateral pledged or received. Pursuant to the International Swaps and Derivatives Association ("ISDA") master agreements, securities lending agreements and other derivatives agreements, the Company and its counterparties typically have the ability to net certain payments owed to each other in specified circumstances. In addition, in the event a party to one of the ISDA master agreements, securities lending agreements or other derivatives agreements defaults, or a transaction is otherwise subject to termination, the non-defaulting party generally has the right to set off against payments owed to the defaulting party or collateral held by the non defaulting party.
	The Company enters into derivative contracts to manage credit risk, interest rate risk, currency exchange risk, and other exposure risks. The Company uses derivatives in connection with its risk-management activities to economically hedge certain risks and to gain exposure to certain investments. The utilization of derivative contracts also allows for an efficient means by which to trade certain asset classes.
	Fair values of derivatives are determined by using quoted market prices and broker quotes when available; otherwise fair values are based on pricing models that consider the time value of money, volatility, and the current market and contractual prices of underlying financial instruments.
	Embedded derivatives
	Certain of the Company’s deposit and reinsurance contracts contain interest crediting features that vary based on the net investment return on investments managed by Third Point LLC. These contractual features are considered embedded derivatives in accordance with U.S. GAAP. We include the estimated fair value of these embedded derivatives in the condensed consolidated balance sheets with the host contract in order to reflect the expected settlement of these features with the host contract. Prior to 2014, the changes in estimated fair value of these embedded derivatives were recorded in net investment income. As these embedded derivatives have become more prominent, the presentation has been modified and changes in the estimated fair value of embedded derivatives are now recorded in other expenses in the condensed consolidated statements of income. In addition, fixed interest crediting features on these contracts that were recorded in net investment income are now classified in other expenses in the condensed consolidated statements of income. As a result, investment expense of $0.8 million and $1.4 million that was previously reported in net investment income for the three and six months ended June 30, 2013, respectively, is now being reported in other expenses to conform to the current year presentation.
Share-based compensation	'
	Share-based compensation
	The Company accounts for its share-based compensation transactions using the fair value of the award at the grant date. Determining the fair value of share purchase options at the grant date requires estimation and judgment. The Company uses an option-pricing model (Black-Scholes) to calculate the fair value of share purchase options.
	For share purchase options granted that contain both a service and performance condition, the Company recognizes share compensation expense only for the portion of the options that are considered probable of being exercised. Share compensation for share purchase options considered probable of being exercised is expensed over the service (vesting) period on a graded vesting basis. The probability of share purchase options being exercised is evaluated at each reporting period.  When the share purchase options are considered probable of being exercised, the Company records a catch up of share compensation expense from the grant date (service inception date for existing options) to the current reporting period end based on the fair value of the options at the grant date.
	The Company measures grant date fair value for restricted share awards based on the price of its common shares at the grant date and the expense is recognised on a straight-line basis over the vesting period.
Warrants	'
	Warrants
	The Company accounts for certain warrant contracts issued to certain of its founding investors ("Founders") in conjunction with the initial capitalization of the Company, and which it may settle by using either the physical settlement or net-share settlement methods. The fair value of these warrants was recorded in equity as additional paid-in capital. The fair value of warrants issued are estimated on the grant date using the Black-Scholes option-pricing model.
	The Company accounts for certain warrant contracts issued to an advisor, where services have been received by the Company, in part, in exchange for equity instruments, based on the fair value of such services. The associated cost of these warrants has been recorded as capital raise costs and is included in additional paid in capital in the condensed consolidated statements of shareholders’ equity.
Offering costs	'
	Offering costs
	Offering costs incurred in connection with the IPO, which included underwriters’ fees, legal and accounting fees, printing and other fees were deducted from the gross proceeds of the offering. The proceeds from the issuance of shares net of offering costs is included in additional paid in capital in the condensed consolidated statements of shareholders’ equity.
Foreign currency transactions	'
	Foreign currency transactions
	The Company’s functional currency is the U.S. dollar. Transactions in foreign currencies are recorded in U.S. dollars at the exchange rate in effect on the transaction date. Monetary assets and liabilities in foreign currencies are remeasured at the exchange rates in effect at the reporting date and foreign exchange gains and losses are included in the condensed consolidated statements of income.
Income taxes and uncertain tax positions	'
	Income taxes and uncertain tax positions
	Under current Bermuda law, the Company and its Bermuda subsidiaries are not subject to any income or capital gains taxes. 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 in the United Kingdom, TPRUK, which is subject to relevant taxes in that jurisdiction.  On July 17, 2013, the United Kingdom government passed the Finance Act 2013, which reduced the corporate income tax rate from 23% to 21% (effective April 1, 2014) and provided for a further reduction in the corporate income tax rate from 21% to 20% (effective April 1, 2015). For the three and six months ended June 30, 2014, the Company recorded $0.02 million in income taxes relating to TPRUK.
	The Company is subject to withholding tax obligations related to dividends and interest on certain investments. Prior to the second quarter of 2014, these withholding tax obligations were recorded as deductions to net investment income. As these withholding tax obligations have increased, the Company has begun to present the relevant amounts in income tax expense in the condensed consolidated statements of income. As a result, withholding taxes of $1.0 million have been recorded in income tax expense for the three and six months ended June 30, 2014. Withholding taxes of $0.2 million and $0.5 million were previously recorded as deductions to net investment income for the three and six months ended June 30, 2013, respectively.
	The Company has also recorded a $1.4 million provision for uncertain tax positions related to investment transactions in certain foreign countries for the three and six months ended June 30, 2014 (2013 - nil).
Non-controlling interests	'
	Non-controlling interests
	The Company consolidates the results of entities in which it has a controlling financial interest. The Company records the portion of shareholders’ equity attributable to non-controlling interests as a separate line within shareholders’ equity in the condensed consolidated balance sheets. The Company records the portion of income attributable to non-controlling interests as a separate line within the condensed consolidated statements of income.
Earnings per share	'
	Earnings per share
	Basic earnings per share is based on the weighted average number of common shares and participating securities outstanding during the period. The weighted average number of common shares excludes any dilutive effect of outstanding warrants, options and convertible securities such as unvested restricted shares. Diluted earnings per share is based on the weighted average number of common shares and share equivalents including any dilutive effects of warrants, options and other awards under share plans and are determined using the treasury stock method. U.S. GAAP requires that unvested share awards that contain non-forfeitable rights to dividends or dividend equivalents, whether paid or unpaid (referred to as ‘‘participating securities”), be included in the number of shares outstanding for both basic and diluted earnings per share calculations. The Company treats its unvested restricted shares as participating securities. In the event of a net loss, the participating securities are excluded from the calculation of both basic and diluted loss per share.
Leases	'
	Leases
	Leases in which substantially all of the risks and rewards of ownership are retained by the lessor are classified as operating leases. Payments made under operating leases (net of any incentives received from the lessor) are recognized in the condensed consolidated statements of income on a straight-line basis over the term of the lease.
Comprehensive income	'
	Comprehensive income
	The Company has no comprehensive income other than net income disclosed in the condensed consolidated statements of income.
Segment information	'
	Segment information
	Under U.S. GAAP, operating segments are based on the internal information that management uses for allocating resources and assessing performance of the Company. The Company reports two operating segments – Property and Casualty Reinsurance and Catastrophe Risk Management. The Company has also identified a corporate function that includes net investment income on capital and certain general and administrative expenses related to corporate activities.
Recently issued accounting standards	'
	Recently issued accounting standards
	Issued and effective as of June 30, 2014
	In January 2013, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update No. 2013-01, Clarifying the Scope of Disclosures about Offsetting Assets and Liabilities (ASU 2013-01). The objective of ASU 2013-01 is to address implementation issues about the scope of ASU 2011-11, Disclosures about Offsetting Assets and Liabilities. The amendments clarify that the scope of ASU 2011-11 applies to derivatives, including bifurcated embedded derivatives, repurchase agreements and reverse repurchase agreements, and securities borrowing and securities lending transactions. Entities with other types of financial assets and financial liabilities subject to a master netting arrangement or similar agreement also are affected because these amendments make them no longer subject to the disclosure requirements in ASU 2011-11. ASU 2013-01 is effective for interim and annual periods beginning on or after January 1, 2013. The Company adopted ASU 2013-01 effective with its IPO and has included the required disclosures in Note 8 of the notes to the condensed consolidated financial statements.
	In February 2013, the FASB issued Accounting Standards Update No. 2013-02, Comprehensive Income (ASU 2013-02). The objective of ASU 2013-02 is to improve the reporting of reclassifications out of other comprehensive income. ASU 2013-02 is effective for periods subsequent to December 15, 2012. The adoption of this guidance had no impact on the Company’s condensed consolidated financial statements.
	In June 2013, the FASB issued Accounting Standards Update No. 2013-08, Financial Services - Investment Companies - Amendments to the Scope, Measurement, and Disclosure Requirements (ASU 2013-08). The amendments in this update change the assessment of whether an entity is an investment company by developing a new two-tiered approach for that assessment, which requires an entity to possess certain fundamental characteristics while allowing judgment in assessing other typical characteristics. The new approach requires an entity to assess all of the characteristics of an investment company and consider its purpose and design to determine whether it is an investment company. ASU 2013-08 is effective prospectively for periods subsequent to December 15, 2013. Early adoption is prohibited. The Company adopted ASU 2013-08 in the first quarter of 2014, and the adoption of this guidance did not have a material impact on the Company's condensed consolidated financial statements.
	Issued but not yet effective as of June 30, 2014
	In April 2014, the FASB issued Accounting Standards Update 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity (ASU 2014-08). ASU 2014-08 changes the requirements for reporting discontinued operations, such that a disposal of a component of the Company's operations is required to be reported as discontinued operations if the disposal represents a strategic shift that has, or will have, a major effect on the Company's operations and financial results. ASU 2014-08 is effective for all disposals that occur after January 1, 2015. The Company does not expect this new pronouncement to have a material impact on the Company’s consolidated financial statements.
	In May 2014, the FASB issued Accounting Standards Update 2014-09, Revenue from Contracts with Customers (ASU 2014-09). ASU 2014-09 provides a framework, through a five-step process, for recognizing revenue from customers, improves comparability and consistency of recognizing revenue across entities, industries, jurisdictions and capital markets, and requires enhanced disclosures. Certain contracts with customers are specifically excluded from the scope of ASU 2014-09, including amongst others, insurance contracts accounted for under Accounting Standard Codification 944, Financial Services - Insurance. ASU 2014-09 is effective on January 1, 2017 with retrospective adoption required for the comparative periods. The Company is currently evaluating the impact of this guidance, however, it is not expected to have a material impact on the Company's consolidated financial statements.
	In June 2014, the FASB issued Accounting Standards Update No. 2014-11, Transfers and Servicing (Topic 860): Repurchase-to Maturity Transactions, Repurchase Financings, and Disclosures (ASU 2014-11). ASU 2014-11 amends the accounting guidance for “repo-to-maturity” transactions and repurchase agreements executed as repurchase financings. In addition, the new standard requires a transferor to disclose more information about certain transactions, including those in which it retains substantially all of the exposure to the economic returns of the underlying transferred asset over the transaction’s term. For repurchase agreements and securities lending agreements accounted for as secured borrowings as of a reporting date, the new standard requires obligors (transferors of collateral) to disaggregate the related gross obligation by class of collateral pledged, and to disclose the remaining contractual maturity of the agreements, and to, discuss the potential risks of these arrangements and related collateral pledged, including the risks stemming from a decline in the value of the pledged collateral and how such risks are managed. Additionally, as a result of the new accounting guidance, repo-to-maturity transactions will be reported as secured borrowings. Transferors will also no longer apply the current “linked” accounting model to repurchase agreements executed contemporaneously with the initial transfer of the underlying financial asset with the same counterparty. ASU 2014-11 is effective prospectively for periods subsequent to December 15, 2014. The Company is currently evaluating the impact of this guidance, however, it is not expected to have a material impact on the Company's consolidated financial statements.

Restricted_cash_and_cash_equiv1

Restricted cash and cash equivalents (Tables)	6 Months Ended
	Jun. 30, 2014
Cash and Cash Equivalents [Abstract]	'
Schedule of restricted cash and cash equivalents	'
	Restricted cash and cash equivalents as of June 30, 2014 and December 31, 2013 consisted of the following:
		June 30,		December 31,
		2014		2013
		($ in thousands)
	Restricted cash securing collateralized reinsurance contracts written by the Catastrophe Reinsurer	$	93,728	$	93,014
	Restricted cash securing credit facilities	128,396		100,563
		$	222,124	$	193,577

Investments_Tables

Investments (Tables)	6 Months Ended
	Jun. 30, 2014
Fair Value Disclosures [Abstract]	'
Schedule of the separate account managed by TP LLC	'
	The following is a summary of the separate account managed by Third Point LLC:
		June 30,			December 31,
		2014			2013
	Assets	($ in thousands)
	Total investments in securities and commodities	$	1,805,225		$	1,460,864
	Cash and cash equivalents	9			869
	Restricted cash and cash equivalents	128,396			100,563
	Due from brokers	74,046			98,386
	Securities purchased under an agreement to sell	33,850			38,147
	Derivative assets	22,516			39,045
	Interest and dividends receivable	3,736			2,604
	Other assets	1,562			933
	Total assets	2,069,340			1,741,411
	Liabilities and non-controlling interest
	Accounts payable and accrued expenses	247			1,759
	Securities sold, not yet purchased, at fair value	46,994			56,056
	Due to brokers	281,091			44,870
	Derivative liabilities	10,528			8,819
	Performance fee payable to related party	22,002			—
	Interest and dividends payable	816			748
	Non-controlling interest	20,210			69,717
	Total liabilities and non-controlling interest	381,888			181,969
	Total net investments managed by Third Point LLC	$	1,687,452		$	1,559,442
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, 2014 and December 31, 2013:
		30-Jun-14
		Quoted prices in active markets			Significant other observable inputs			Significant unobservable inputs		Total
		(Level 1)			(Level 2)			(Level 3)
	Assets	($ in thousands)
	Equity securities	$	1,118,096		$	38,979		$	—	$	1,157,075
	Private common equity securities	—			2,988			2,300		5,288
	Total equities	1,118,096			41,967			2,300		1,162,363
	Asset-backed securities	—			369,017			2,441		371,458
	Bank debts	—			11,829			—		11,829
	Corporate bonds	—			99,711			5,153		104,864
	Municipal bonds	—			19,431			—		19,431
	Sovereign debt	—			43,841			30		43,871
	Total debt securities	—			543,829			7,624		551,453
	Investments in limited partnerships	—			66,492			5,771		72,263
	Options	2,619			164			—		2,783
	Rights and warrants	297			—			—		297
	Trade claims	—			16,066			—		16,066
	Catastrophe bond	—			2,003			—		2,003
	Total other investments	2,916			84,725			5,771		93,412
	Derivative assets (free standing)	—			22,516			—		22,516
	Total assets	$	1,121,012		$	693,037		$	15,695	$	1,829,744
	Liabilities
	Equity securities	$	4,008		$	—		$	—	$	4,008
	Sovereign debt	—			33,213			—		33,213
	Corporate bonds	—			4,699			—		4,699
	Options	3,614			1,460			—		5,074
	Total securities sold, not yet purchased	7,622			39,372			—		46,994
	Derivative liabilities (free standing)	532			9,996			—		10,528
	Derivative liabilities (embedded)	—			—			5,538		5,538
	Total liabilities	$	8,154		$	49,368		$	5,538	$	63,060
		December 31, 2013
		Quoted prices in active markets			Significant other observable inputs			Significant unobservable inputs		Total
		(Level 1)			(Level 2)			(Level 3)
	Assets	($ in thousands)
	Equity securities	$	839,903		$	17,914		$	—	$	857,817
	Private common equity securities	—			94,282			2,012		96,294
	Total equities	839,903			112,196			2,012		954,111
	Asset-backed securities	—			325,133			400		325,533
	Bank debts	—			8,017			—		8,017
	Corporate bonds	—			82,139			4,610		86,749
	Municipal bonds	—			10,486			—		10,486
	Sovereign debt	—			10,639			—		10,639
	Total debt securities	—			436,414			5,010		441,424
	Investments in limited partnerships	—			29,286			5,292		34,578
	Options	6,284			6,785			—		13,069
	Rights and warrants	1			—			—		1
	Trade claims	—			17,681			—		17,681
	Total other investments	6,285			53,752			5,292		65,329
	Derivative assets	321			38,724			—		39,045
	Total assets	$	846,509		$	641,086		$	12,314	$	1,499,909
	Liabilities
	Equity securities	$	5,207		$	—		$	—	$	5,207
	Sovereign debt	—			37,592			—		37,592
	Corporate bonds	—			3,372			—		3,372
	Options	4,714			5,171			—		9,885
	Total securities sold, not yet purchased	9,921			46,135			—		56,056
	Derivative liabilities (free standing)	441			8,378			—		8,819
	Derivative liabilities (embedded)	—			—			4,430		4,430
	Total liabilities	$	10,362		$	54,513		$	4,430	$	69,305
Schedule of reconciliation of the balances for all investments measured at fair value using significant unobservable inputs	'
	The following table presents the reconciliation for all investments measured at fair value using significant unobservable inputs (Level 3) for the three and six months ended June 30, 2014 and 2013:
		1-Jan-14			Transfers in to (out of) Level 3			Purchases		Sales			Realized and Unrealized Gains(Losses) (1)			June 30,
																2014
		($ in thousands)
	Assets
	Asset-backed securities	$	400		$	(1,631	)	$	3,805	$	(1,903	)	$	1,770		$	2,441
	Corporate bonds	4,610			—			821		(332		)	54			5,153
	Private common equity securities	2,012			—			—		—			288			2,300
	Investments in limited partnerships	5,292			—			54		—			425			5,771
	Sovereign debt	—			—			30		—			—			30
	Total assets	$	12,314		$	(1,631	)	$	4,710	$	(2,235	)	$	2,537		$	15,695
	Liabilities
	Derivative liabilities (embedded)	$	(4,430	)	$	—		$	—	$	(783	)	$	(325	)	$	(5,538	)
		1-Apr-14			Transfers in to (out of) Level 3			Purchases		Sales			Realized and Unrealized Gains(Losses) (1)			June 30,
																2014
		($ in thousands)
	Assets
	Asset-backed securities	$	3,552		$	(3,552	)	$	2,441	$	—		$	—		$	2,441
	Corporate bonds	4,781			—			734		(332		)	(30		)	5,153
	Private common equity securities	2,012			—			—		—			288			2,300
	Investment in limited partnership	5,108			—			—		—			663			5,771
	Sovereign debt	—			—			30		—			—			30
	Total assets	$	15,453		$	(3,552	)	$	3,205	$	(332	)	$	921		$	15,695
	Liabilities
	Derivative liabilities (embedded)	$	(5,356	)	$	—		$	—	$	—		$	(182	)	$	(5,538	)
		1-Jan-13			Transfers in to (out of) Level 3			Purchases		Sales			Realized and Unrealized Gains(Losses) (1)			June 30,
																2013
		($ in thousands)
	Assets
	Asset-backed securities	$	—		$	309		$	149	$	—		$	(264	)	$	194
	Bank debt	54			(54		)	—		—			—			—
	Corporate bonds	1,046			(1,302		)	3,984		(1,120		)	1,696			4,304
	Private common equity securities	2,757			—			1,654		(1,795		)	857			3,473
	Investment in limited partnership	—			—			1,288		(342		)	(43		)	903
	Total assets	$	3,857		$	(1,047	)	$	7,075	$	(3,257	)	$	2,246		$	8,874
	Liabilities
	Derivative liabilities (free standing)	$	—		$	—		$	—	$	(3,345	)	$	1,105		$	(2,240	)
	Derivative liabilities (embedded)	(2,510		)	—			—		(1,460		)	(210		)	(4,180		)
	Total liabilities	$	(2,510	)	$	—		$	—	$	(4,805	)	$	895		$	(6,420	)
		1-Apr-13			Transfers in to (out of) Level 3			Purchases		Sales			Realized and Unrealized Gains(Losses) (1)			June 30,
																2013
		($ in thousands)
	Assets
	Asset-backed securities	$	—		$	309		$	149	$	—		$	(264	)	$	194
	Corporate bonds	9,354			(8,224		)	3,984		(1,120		)	310			4,304
	Private common equity securities	4,406			—			—		(1,795		)	862			3,473
	Investment in limited partnership	—			—			1,288		(342		)	(43		)	903
	Total assets	$	13,760		$	(7,915	)	$	5,421	$	(3,257	)	$	865		$	8,874
	Liabilities
	Derivative liabilities (free standing)	$	(1,332	)	$	—		$	—	$	(1,250	)	$	342		$	(2,240	)
	Derivative liabilities (embedded)	(2,680		)	—			—		(1,460		)	(40		)	(4,180		)
	Total liabilities	$	(4,012	)	$	—		$	—	$	(2,710	)	$	302		$	(6,420	)
	(1) Total net change in realized and unrealized gain (loss) recorded on Level 3 financial instruments are included in net investment income in the condensed consolidated statements of income.

Derivatives_Tables

Derivatives (Tables)	6 Months Ended
	Jun. 30, 2014
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, 2014
		Listing currency (1)		Fair Value				Notional Amounts (2)
	Derivative Assets by Primary Underlying Risk	($ in thousands)
	Credit
	Credit Default Swaps - Protection Purchased	USD		$	11,349			$	105,945
	Credit Default Swaps - Protection Sold	USD		1,221				11,481
	Equity Price
	Contracts for Differences - Long Contracts	EUR/USD		3,716				50,889
	Total Return Swaps - Long Contracts	AUD/BRL/MXN		1,899				19,768
	Interest Rates
	Interest Rate Swaps	EUR		175				211,261
	Interest Rate Swaptions	USD		2,193				357,585
	Foreign Currency Exchange Rates
	Foreign Currency Options - Purchased	HKD/JPY/SAR		1,963				169,711
	Total Derivative Assets			$	22,516			$	926,640
		Listing currency (1)		Fair Value				Notional Amounts (2)
	Derivative Liabilities by Primary Underlying Risk	($ in thousands)
	Credit
	Credit Default Swaps - Protection Purchased	EUR/USD		$	2,905			$	76,193
	Credit Default Swaps - Protection Sold	USD		1,254				4,555
	Equity Price
	Contracts for Differences - Long Contracts	EUR/GBP		370				22,343
	Contracts for Differences - Short Contracts	EUR		307				4,402
	Total Return Swaps - Long Contracts	USD		2				13,156
	Total Return Swaps - Short Contracts	USD		635				7,300
	Index
	Index Futures - Short Contracts	USD		369				27,173
	Interest Rates
	Bond Futures - Short Contracts	JPY		142				46,021
	Interest Rate Swaps	EUR		464				210,623
	Interest Rate Swaptions	USD		1,608				182,777
	Treasury Futures - Short Contracts	USD		21				11,089
	Foreign Currency Exchange Rates
	Foreign Currency Forward	AUD/BRL/CAD/EUR/GBP/JPY/TRY		1,916				181,606
	Foreign Currency Options - Sold	JPY		535				26,083
	Total Derivative Liabilities (free standing)			$	10,528			$	813,321
	Embedded derivative liabilities in reinsurance contracts (3)	USD		$	888			$	15,000
	Embedded derivative liabilities in deposit contracts (4)	USD		4,650				75,000
	Total Derivative Liabilities (embedded)			$	5,538			$	90,000
	(1) USD =S dollar, JPY =apanese yen, EUR =uro, GBP =ritish pound, BRL =razilian real, MXN=xican Peso, AUD =ustralian dollar, CAD =anadian dollar, TRY =urkish lira, SAR=audi Arabian Riyal, HKD =ong Kong
	(2) The absolute notional exposure represents the Company's derivative activity as of June 30, 2014, 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 sheet.
	(4) The fair value of embedded derivatives in deposit contracts is included in deposit liabilities in the condensed consolidated balance sheet.
		As of December 31, 2013
		Listing currency (1)		Fair Value				Notional Amounts (2)
	Derivative Assets by Primary Underlying Risk	($ in thousands)
	Commodity Price
	Commodity Future Options - Purchased	USD		$	256			$	12,325
	Credit
	Credit Default Swaps - Protection Purchased	USD		15,397				109,520
	Credit Default Swaps - Protection Sold	USD		1,157				9,557
	Equity Price
	Contracts for Differences - Long Contracts	CHF/EUR/GBP/USD		10,549				62,847
	Contracts for Differences - Short Contracts	NOK		67				2,758
	Total Return Swaps - Long Contracts	BRL/JPY/USD		2,950				68,044
	Total Return Swaps - Short Contracts	USD		3				290
	Interest Rates
	Bond Futures - Short Contracts	JPY		212				40,847
	Interest Rate Swaps	EUR		182				212,594
	Interest Rate Swaptions	EUR/JPY/USD		1,269				54,884
	Treasury Futures - Short Contracts	USD		108				6,544
	Foreign Currency Exchange Rates
Foreign Currency Forward	AUD/CAD/JPY/TRY		1,332				59,925
Foreign Currency Options - Purchased	USD		5,563				240,062
Total Derivative Assets			$	39,045			$	880,197
	Listing currency (1)		Fair Value				Notional Amounts (2)
Derivative Liabilities by Primary Underlying Risk	($ in thousands)
Commodity Price
Commodity Future Options - Sold	USD		$	148			$	35,484
Credit
Credit Default Swaps - Protection Purchased	EUR/USD		2,634				59,446
Credit Default Swaps - Protection Sold	USD		348				875
Equity Price
Contracts for Differences - Long Contracts	EUR		66				14,607
Contracts for Differences - Short Contracts	DKK		425				7,253
Total Return Swaps - Long Contracts	BRL/JPY/USD		1,385				24,807
Total Return Swaps - Short Contracts	USD		140				5,037
Index
Index Futures - Short Contracts	USD		441				8,888
Interest Rates
Interest Rate Swaps	EUR/USD		821				465,560
Interest Rate Swaptions	USD/JPY		174				99,587
Foreign Currency Exchange Rates
Foreign Currency Forward	EUR/GBP		709				189,030
Foreign Currency Options - Sold	USD		1,528				178,476
Total Derivative Liabilities			$	8,819			$	1,089,050
Embedded derivative liabilities in deposit contracts (3)	USD		$	4,430			$	75,000
Total Derivative Liabilities (embedded)			$	4,430			$	75,000
(1) USD =S dollar, JPY =apanese yen, EUR =uro, GBP =ritish pound, BRL =razilian real, NOK =orwegian krone, AUD =ustralian dollar, DKK =anish krone, CAD =anadian dollar, CHF =wiss franc, TRY=rkish lira
(2) The absolute notional exposure represents the Company's derivative activity as of December 31, 2013, which is representative of the volume of derivatives held during the period.
(3) The fair value of embedded derivatives in deposit contracts is included in deposit liabilities in the condensed consolidated balance sheet.
(4) The fair value of embedded derivatives in deposit contracts is included in deposit liabilities in the condensed consolidated balance sheet.
Schedule of realized and unrealized gains (losses) relating to trading activities	'
	The following tables set 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, 2014 and 2013. Realized and unrealized gains (losses) related to free standing derivatives are included in net investment income in the condensed consolidated statements of income. Realized and unrealized gains (losses) related to embedded derivatives are included in other expenses in the condensed consolidated statements of income.
		For the three months ended
		June 30, 2014								June 30, 2013
	Free standing Derivatives - Primary Underlying Risk	Realized Gain (Loss)				Unrealized Gain (Loss)*				Realized Gain (Loss)			Unrealized Gain (Loss)*
	Commodity Price	($ in thousands)
	Commodities Futures - Long Contracts	$	—			$	—			$	(2,455	)	$	—
	Commodities Futures - Short Contracts	—				—				176			(30		)
	Commodity Future Options - Purchased	—				—				(77		)	(2		)
	Credit
	Credit Default Swaps - Protection Purchased	(1,511		)		(615		)		(9,530		)	7,535
	Credit Default Swaps - Protection Sold	104				323				8,151			(7,792		)
	Equity Price
	Contracts for Differences - Long Contracts	4,760				(4,566		)		2,576			(3,926		)
	Contracts for Differences - Short Contracts	(518		)		(228		)		854			(250		)
	Total Return Swaps - Long Contracts	5,101				(408		)		41			(1,267		)
	Total Return Swaps - Short Contracts	337				(264		)		1,459			(484		)
	Index
	Index Futures - Short Contracts	(193		)		(369		)		—			—
	Interest Rates
	Bond Futures - Short Contracts	(224		)		(184		)		704			99
	Interest Rate Swaps	167				56				635			(477		)
	Interest Rate Swaptions	(1		)		(657		)		(13		)	(58		)
	Treasury Futures - Short Contracts	(385		)		(2		)		87			157
	Foreign Currency Exchange Rates
	Foreign Currency Forward	(315		)		(1,625		)		(1,784		)	3,523
	Foreign Currency Options - Purchased	(474		)		(305		)		4,110			1,686
	Foreign Currency Options - Sold	—				214				(1,544		)	(894		)
	Reinsurance contract derivatives	—				—				—			342
		$	6,848			$	(8,630	)		$	3,390		$	(1,838	)
	Embedded Derivatives
	Embedded derivatives in reinsurance contracts	$	—			$	(43	)		$	—		$	—
	Embedded derivatives in deposit contracts	—				(139		)		—			(40		)
		$	—			$	(182	)		$	—		$	(40	)
		For the six months ended
		June 30, 2014								June 30, 2013
	Free standing Derivatives - Primary Underlying Risk	Realized Gain (Loss)				Unrealized Gain (Loss)*				Realized Gain (Loss)			Unrealized Gain (Loss)*
	Commodity Price	($ in thousands)
	Commodities Futures - Long Contracts	$	—			$	—			$	(2,455	)	$	—
	Commodities Futures - Short Contracts	—				—				563			(212		)
	Commodity Future Options - Purchased	(271		)		(5		)		(141		)	(1		)
	Commodity Future Options - Sold	316				(168		)		—			—
	Credit
	Credit Default Swaps - Protection Purchased	(2,314		)		(3,521		)		(8,815		)	5,330
	Credit Default Swaps - Protection Sold	185				204				8,151			(7,791		)
	Equity Price
	Contracts for Differences - Long Contracts	5,036				(7,135		)		8,690			(4,242		)
	Contracts for Differences - Short Contracts	(2,338		)		51				989			437
	Total Return Swaps - Long Contracts	9,791				332				1,005			(933		)
	Total Return Swaps - Short Contracts	524				(497		)		1,254			164
	Index
	Index Futures - Short Contracts	(332		)		72				19			—
	Interest Rates
	Bond Futures - Short Contracts	(544		)		(354		)		562			(248		)
	Interest Rate Swaps	(457		)		349				629			487
	Interest Rate Swaptions	529				(1,576		)		(169		)	33
	Treasury Futures - Short Contracts	(641		)		(129		)		435			(430		)
	Foreign Currency Exchange Rates
	Foreign Currency Forward	219				(2,540		)		6,310			1,995
	Foreign Currency Options - Purchased	(1,740		)		(2,152		)		8,617			462
	Foreign Currency Options - Sold	686				385				(3,196		)	(212		)
	Reinsurance contract derivatives	—				—				—			1,105
		$	8,649			$	(16,684	)		$	22,448		$	(4,056	)
	Embedded Derivatives
Embedded derivatives in reinsurance contracts	$	—			$	(106	)		$	—		$	—
Embedded derivatives in deposit contracts	—				(219		)		—			(210		)
Total Derivative Liabilities (embedded)	$	—			$	(325	)		$	—		$	(210	)
* 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, 2014 and December 31, 2013, the gross and net amounts of derivative instruments 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, 2014 Counterparty		Gross Amounts of Assets Presented in the condensed consolidated balance sheet				Financial Instruments				Cash Collateral Received			Net Amount
			($ in thousands)
	Counterparty 1		$	886			$	886			$	—		$	—
	Counterparty 2		1,648				528				—			1,120
	Counterparty 3		7,912				3,897				—			4,015
	Counterparty 4		1,054				1,054				—			—
	Counterparty 5		1,656				1,656				—			—
	Counterparty 6		8,674				458				5,608			2,608
	Counterparty 7		31				31				—			—
	Counterparty 8		50				50				—			—
	Counterparty 9		605				—				560			45
	Total		$	22,516			$	8,560			$	6,168		$	7,788
			Gross Amounts not offset in the condensed consolidated balance sheet
	June 30, 2014 Counterparty		Gross Amounts of Liabilities Presented in the condensed consolidated balance sheet				Financial Instruments				Cash Collateral Pledged			Net Amount
			($ in thousands)
	Counterparty 1		$	1,440			$	886			$	554		$	—
	Counterparty 2		528				528				—			—
	Counterparty 3		3,897				3,897				—			—
	Counterparty 4		1,540				1,054				486			—
	Counterparty 5		1,804				1,656				148			—
	Counterparty 6		458				458				—			—
	Counterparty 7		480				31				449			—
	Counterparty 8		381				50				331			—
	Total		$	10,528			$	8,560			$	1,968		$	—
			Gross Amounts not offset in the condensed consolidated balance sheet
	31-Dec-13		Gross Amounts of Assets Presented in the condensed consolidated balance sheet				Financial Instruments				Cash Collateral Received			Net Amount
	Counterparty
			($ in thousands)
	Counterparty 1		$	1,128			$	1,041			$	—		$	87
	Counterparty 2		4,998				400				1,629			2,969
	Counterparty 3		16,066				3,509				—			12,557
	Counterparty 4		1,351				1,351				—			—
	Counterparty 5		3,198				1,054				—			2,144
	Counterparty 6		12,234				492				10,465			1,277
	Counterparty 7		2				2				—			—
	Counterparty 8		—				—				—			—
	Counterparty 9		68				68				—			—
	Total		$	39,045			$	7,917			$	12,094		$	19,034
			Gross Amounts not offset in the condensed consolidated balance sheet
	31-Dec-13		Gross Amounts of Liabilities Presented in the condensed consolidated balance sheet				Financial Instruments				Cash Collateral Pledged			Net Amount
	Counterparty
			($ in thousands)
	Counterparty 1		$	1,041			$	1,041			$	—		$	—
	Counterparty 2		400				400				—			—
	Counterparty 3		3,509				3,509				—			—
	Counterparty 4		1,360				1,351				9			—
	Counterparty 5		1,054				1,054				—			—
	Counterparty 6		492				492				—			—
	Counterparty 7		59				2				57			—
	Counterparty 8		—				—				—			—
	Counterparty 9		904				68				836			—
	Total		$	8,819			$	7,917			$	902		$	—

Loss_and_loss_adjustment_expen1

Loss and loss adjustment expense reserves (Tables)	6 Months Ended
	Jun. 30, 2014
Loss and Loss Adjustment Expense Reserves [Abstract]	'
Schedule of loss and loss adjustment expense reserves	'
	As of June 30, 2014 and December 31, 2013, loss and loss adjustment expense reserves in the condensed consolidated balance sheets was comprised of the following:
		June 30,			December 31,
		2014			2013
		($ in thousands)
	Case loss and loss adjustment expense reserves	$	42,488		$	34,307
	Incurred but not reported loss and loss adjustment expense reserves	142,139			100,024
		$	184,627		$	134,331
Schedule of activity in the reserve for losses and loss adjustment expenses	'
	The following table represents the activity in the reserve for losses and loss adjustment expenses for the six months ended June 30, 2014 and 2013:
		June 30,			June 30,
		2014			2013
		($ in thousands)
	Gross reserves for loss and loss adjustment expenses, beginning of period	$	134,331		$	67,271
	Less: loss and loss adjustment expenses recoverable, beginning of period	(9,277		)	—
	Net reserves for loss and loss adjustment expenses, beginning of period	125,054			67,271
	Increase (decrease) in net loss and loss adjustment expenses incurred in respect of losses occurring in:
	Current year	88,059			67,154
	Prior years'	2,609			(2,824		)
	Total incurred loss and loss adjustment expenses	90,668			64,330
	Net loss and loss adjustment expenses paid in respect of losses occurring in:
	Current year	(22,141		)	(6,044		)
	Prior years'	(19,228		)	(16,647		)
	Total net paid losses	(41,369		)	(22,691		)
	Net reserve for loss and loss adjustment expenses, end of period	174,353			108,910
	Plus: loss and loss adjustment expenses recoverable, end of period	10,274			4,190
	Gross reserve for loss and loss adjustment expenses, end of period	$	184,627		$	113,100

Management_performance_and_fou1

Management, performance and founders fees (Tables)	6 Months Ended
	Jun. 30, 2014
Management, Performance and Founders Fees [Abstract]	'
Schedule of investment fee expenses	'
	Investment fee expenses related to the Investment Agreement, which are included in net investment income in the condensed consolidated statements of income for the three and six months ended June 30, 2014 and 2013 are as follows:
		For the three months ended				For the six months ended
		June 30,		June 30,		June 30,		June 30,
		2014		2013		2014		2013
		($ in thousands)
	Management fees - Third Point LLC	$	1,240	$	795	$	2,428	$	1,519
	Management fees - Founders	7,025		4,502		13,760		8,604
	Performance fees - Third Point Advisors LLC	9,706		8,063		22,002		28,069
		$	17,971	$	13,360	$	38,190	$	38,192

Deposit_contracts_Tables

Deposit contracts (Tables)	6 Months Ended
	Jun. 30, 2014
Deposit Contracts, Liabilities [Abstract]	'
Schedule of deposit contracts	'
	The following table represents activity in the deposit liabilities for the six months ended June 30, 2014 and the year ended December 31, 2013:
		June 30,			December 31,
		2014			2013
		($ in thousands)
	Balance, beginning of period	$	120,946		$	50,446
	Consideration received	—			66,369
	Net investment expense allocation and change in fair value of embedded derivatives	1,263			4,731
	Payments	(250		)	(600		)
	Balance, end of period	$	121,959		$	120,946

General_and_administrative_exp1

General and administrative expenses (Tables)	6 Months Ended
	Jun. 30, 2014
General and Administrative Expense [Abstract]	'
Schedule of general and administrative expenses	'
	General and administrative expenses for the three and six months ended June 30, 2014 and 2013 are as follows:
		For the three months ended				For the six months ended
		June 30,		June 30,		June 30,		June 30,
		2014		2013		2014		2013
		($ in thousands)
	Payroll and related	$	3,928	$	3,349	$	8,225	$	6,704
	Share compensation expenses	2,246		1,716		4,498		3,468
	Legal and accounting	968		481		2,097		995
	Travel and entertainment	828		427		1,575		1,069
	IT related	330		354		792		584
	Corporate insurance	275		92		589		212
	Occupancy	164		112		285		225
	Credit facility fees	220		220		406		360
	Director and board costs	162		28		296		59
	Other general and administrative expenses	428		438		811		549
		$	9,549	$	7,217	$	19,574	$	14,225

Net_investment_income_Tables

Net investment income (Tables)	6 Months Ended
	Jun. 30, 2014
Net Investment Income [Abstract]	'
Schedule of net investment income	'
	Net investment income for the three and six months ended June 30, 2014 and 2013 consisted of the following:
		For the three months ended						For the six months ended
		June 30,			June 30,			June 30,			June 30,
		2014			2013			2014			2013
	Net investment income by type	($ in thousands)
	Net realized gains on investments and investment derivatives	$	46,556		$	13,712		$	131,308		$	112,895
	Net unrealized gains (losses) on investments and investment derivatives	11,295			22,536			(4,959		)	24,305
	Net realized (loss) gain on foreign currencies	(4,350		)	5,324			(8,274		)	5,717
	Dividend and interest income	8,049			5,755			15,777			11,300
	Dividends paid on securities sold, not yet purchased	(1		)	(166		)	(34		)	(436		)
	Management and performance fees	(17,971		)	(13,360		)	(38,190		)	(38,192		)
	Other expenses	(3,126		)	(1,334		)	(5,170		)	(2,524		)
	Net investment income on investments managed by Third Point LLC	40,452			32,467			90,458			113,065
	Investment income on cash held by the Catastrophe Reinsurer and Catastrophe Fund	28			—			57			—
	Net gain on catastrophe bond held by Catastrophe Reinsurer	5			—			5			—
	Net gain on reinsurance contract derivatives written by the Catastrophe Reinsurer	—			359			—			1,122
		$	40,485		$	32,826		$	90,520		$	114,187
		For the three months ended						For the six months ended
		June 30,			June 30,			June 30,			June 30,
		2014			2013			2014			2013
	Net investment income by asset class	($ in thousands)
	Net investment gains on equity securities	$	22,822		$	31,612		$	50,645		$	107,321
	Net investment gains on debt securities	31,783			8,570			86,975			42,599
	Net investment (losses) gains on other investments	(3,785		)	12,318			(4,980		)	3,078
	Net investment (losses) gains on investment derivatives	(1,782		)	1,566			(8,035		)	18,409
	Net investment gains (losses) on securities sold, not yet purchased	15,397			(11,658		)	15,384			(21,874		)
	Net investment (loss) income on cash, including foreign exchange gains (losses)	(4,718		)	4,528			(9,173		)	5,133
	Net investment gains (losses) on securities purchased under and agreement to resell	(224		)	517			(211		)	21
	Management and performance fees	(17,971		)	(13,360		)	(38,190		)	(38,192		)
	Other investment expenses	(1,037		)	(1,267		)	(1,895		)	(2,308		)
		$	40,485		$	32,826		$	90,520		$	114,187

Other_expenses_Tables

Other expenses (Tables)	6 Months Ended
	Jun. 30, 2014
Other Income and Expenses [Abstract]	'
Schedule of other expenses	'
	Other expenses for the three and six months ended June 30, 2014 and 2013 consisted of the following:
		For the three months ended				For the six months ended
		June 30,		June 30,		June 30,		June 30,
		2014		2013		2014		2013
		($ in thousands)
	Deposit liabilities and reinsurance contracts investment expense	$	837	$	719	$	1,481	$	1,219
	Change in fair value of embedded derivatives in deposit and reinsurance contracts (1)	183		40		326		210
		$	1,020	$	759	$	1,807	$	1,429
	(1) See discussion of accounting policy for embedded derivatives in Note 2 for additional information.

Share_capital_Tables

Share capital (Tables)	6 Months Ended
	Jun. 30, 2014
Equity [Abstract]	'
Schedule of summary of warrants	'
	The following is a summary of warrants as of June 30, 2014:
		Exercise price		Authorized and	Aggregate fair
				issued	value of
					warrants
		($ in thousands, except for share and per share amounts)
	Founders	$	10	4,069,768	$	15,203
	Advisor	$	10	581,395	2,171
				4,651,163	$	17,374

Sharebased_compensation_Tables

Share-based compensation (Tables)	6 Months Ended
	Jun. 30, 2014
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]	'
Schedule of management and director options activity	'
	The management and director options activity for the six months ended June 30, 2014 and the year ended December 31, 2013 were as follows:
		Number of		Weighted
		options		average exercise
				price
	Balance as of January 1, 2013	10,956,838		$	13.2
	Granted - employees	348,836		14.09
	Granted - directors	—		—
	Forfeited	(324,599	)	13.2
	Exercised	—		—
	Balance as of December 31, 2013	10,981,075		13.23
	Granted - employees	348,836		18.25
	Granted - directors	—		—
	Forfeited	—		—
	Exercised	—		—
	Balance as of June 30, 2014	11,329,911		$	13.38
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, 2014:
		Options outstanding				Options exercisable
	Range of exercise prices	Number of		Weighted		Number of	Weighted
		options		average		options	average
				exercise price			exercise price
	$10.00-$10.89	6,588,647		$10.03		2,346,787	$10.02
	$15.05-$16.89	2,405,516		$15.94		782,262	$16.02
	$20.00-$25.05	2,335,748		$20.21		782,262	$20.02
		11,329,911		$13.38		3,911,311	$13.22
Schedule of restricted share award activity	'
	Restricted share award activity for the six months ended June 30, 2014 and year ended December 31, 2013 was as follows:
		Number of non-		Weighted
		vested restricted		average grant
		shares		date fair value
	Balance as of January 1, 2013	619,300		$	10
	Granted	37,856		15.22
	Forfeited	—		—
	Vested	—		—
	Balance as of December 31, 2013	657,156		10.25
	Granted	9,614		15.29
	Forfeited	—		—
	Vested	—		—
	Balance as of June 30, 2014	666,770		$	10.37

Noncontrolling_interests_Table

Non-controlling interests (Tables)	6 Months Ended
	Jun. 30, 2014
Noncontrolling Interest [Abstract]	'
Schedule of noncontrolling interests	'
	Non-controlling interests as of June 30, 2014 and December 31, 2013 are as follows:
		June 30, 2014			December 31, 2013
		($ in thousands)
	Catastrophe Fund	$	56,024		$	49,254
	Catastrophe Fund Manager	(326		)	(236		)
	Joint Venture - Third Point Advisors LLC share	20,210			69,717
		$	75,908		$	118,735
	Income (loss) attributable to non-controlling interests for the three and six months ended June 30, 2014 and 2013 was:
		For the three months ended						For the six months ended
		June 30,			June 30,			June 30,			June 30,
		2014			2013			2014			2013
		($ in thousands)
	Catastrophe Fund	$	369		$	178		$	619		$	757
	Catastrophe Fund Manager	(31		)	(98		)	(90		)	(162		)
	Joint Venture - Third Point Advisors LLC share	669			221			1,494			789
		$	1,007		$	301		$	2,023		$	1,384

Earnings_per_share_Tables

Earnings per share (Tables)	6 Months Ended
	Jun. 30, 2014
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 per share for the three and six months ended June 30, 2014 and 2013:
			For the three months ended						For the six months ended
			30-Jun-14			30-Jun-13			30-Jun-14			30-Jun-13
	Weighted-average number of common shares outstanding:
		Basic number of common shares outstanding	103,264,616			78,432,132			103,264,616			78,432,132
		Dilutive effect of options	1,490,091			22,216			1,520,726			—
		Dilutive effect of warrants	1,679,174			799,920			1,720,373			715,840
		Diluted number of common shares outstanding	106,433,881			79,254,268			106,505,715			79,147,972
	Basic net income per common share:
		Net income	$	31,292		$	26,223		$	71,071		$	100,653
		Net income allocated to participating shares	(200		)	(206		)	(452		)	(790		)
		Net income available to common shareholders	$	31,092		$	26,017		$	70,619		$	99,863
		Basic net income per common share	$	0.3		$	0.33		$	0.68		$	1.27
	Diluted net income per common share:
		Net income	$	31,292		$	26,223		$	71,071		$	100,653
		Income allocated to participating securities	(194		)	(204		)	(439		)	(783		)
		Net income available to common shareholders	$	31,098		$	26,019		$	70,632		$	99,870
		Diluted net income per common share	$	0.29		$	0.33		$	0.66		$	1.26

Financial_instruments_with_off1

Financial instruments with off-balance sheet risk or concentrations of credit risk (Tables)	6 Months Ended
	Jun. 30, 2014
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, 2014 and December 31, 2013:
	June 30, 2014		Maximum Payout/ Notional Amount (by period of expiration)						Fair Value of Written Credit Derivatives (2)
	Credit Spreads on		0-5 years		5 years or		Total Written		Asset		Liability			Net Asset/(Liability)
	underlying (basis				Greater Expiring Through 2047		Credit Default
	points)						Swaps (1)
			($ in thousands)
	Single name (0 - 250)		$	—	$	4,555	$	4,555	$	—	$	1,254		$	(1,254	)
	Single name (251-500)		9,105		2,376		11,481		1,221		—			1,221
	Index (0-250)		—		—		—		—		—			—
			$	9,105	$	6,931	$	16,036	$	1,221	$	1,254		$	(33	)
	December 31, 2013		Maximum Payout/ Notional Amount (by period of expiration)						Fair Value of Written Credit Derivatives (2)
	Credit Spreads on		0-5 years		5 years or		Total Written		Asset		Liability			Net Asset/(Liability)
	underlying (basis				Greater Expiring Through 2046		Credit Default
	points)						Swaps (1)
			($ in thousands)
	Single name (0 - 250)		$	368	$	—	$	368	$	—	$	(104	)	$	(104	)
	Single name (251-500)		9,514		—		9,514		1,136		—			1,136
	Index (0-250)		—		550		550		21		(244		)	(223		)
			$	9,882	$	550	$	10,432	$	1,157	$	(348	)	$	809
	-1	As of June 30, 2014 and December 31, 2013, 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.

Commitments_and_Contingencies_

Commitments and Contingencies (Tables)	6 Months Ended
	Jun. 30, 2014
Commitments and Contingencies Disclosure [Abstract]	'
Schedule of credit facilities	'
	As of June 30, 2014, the Company had entered into the following letter of credit facilities, which automatically renew annually unless terminated by either party in accordance with the required notice period:
		Facility		Renewal date	Notice period (Unused Facility Portion)
		($ in thousands)
	BNP Paribas	$	100,000	February 15, 2015	60 days prior to termination date
	Citibank (1)	150,000		January 23, 2015	90 days prior to termination date
	J.P. Morgan	50,000		August 22, 2015	60 days prior to termination date
		$	300,000
	(1) Effective July 9, 2014, we increased our Citibank facility from $150 million to $250 million. All other terms of the facility remained the same.

Segment_reporting_Tables

Segment reporting (Tables)	6 Months Ended
	Jun. 30, 2014
Segment Reporting [Abstract]	'
Schedule of operating segments	'
	The following is a summary of the Company’s operating segments results for the three and six months ended June 30, 2014 and 2013:
		Three months ended June 30, 2014
		Property and Casualty Reinsurance			Catastrophe Risk Management				Corporate				Total
	Revenues	($ in thousands)
	Gross premiums written	$	140,422		$	5,086			$	—			$	145,508
	Gross premiums ceded	—			—				—				—
	Net premiums written	140,422			5,086				—				145,508
	Change in net unearned premium reserves	(62,934		)	(3,824		)		—				(66,758		)
	Net premiums earned	77,488			1,262				—				78,750
	Expenses
	Loss and loss adjustment expenses incurred, net	44,409			—				—				44,409
	Acquisition costs, net	29,507			76				—				29,583
	General and administrative expenses	5,655			678				3,216				9,549
	Total expenses	79,571			754				3,216				83,541
	Net underwriting loss	(2,083		)	n/a				n/a				n/a
	Net investment income	6,282			33				34,170				40,485
	Other expenses	(1,020		)	—				—				(1,020		)
	Income tax expense	—			—				(2,375		)		(2,375		)
	Segment income including non-controlling interests	3,179			541				28,579				32,299
	Segment income attributable to non-controlling interests	—			(338		)		(669		)		(1,007		)
	Segment income	$	3,179		$	203			$	27,910			$	31,292
	Property and Casualty Reinsurance - Underwriting Ratios:
	Loss ratio (1)	57.3		%
	Acquisition cost ratio (2)	38.1		%
	Composite ratio (3)	95.4		%
	General and administrative expense ratio (4)	7.3		%
	Combined ratio (5)	102.7		%
	-1	Loss ratio is calculated by dividing loss and loss adjustment expenses incurred, net by net premiums earned.
	-2	Acquisition cost ratio is calculated by dividing acquisition costs, net by net premiums earned.
	-3	Composite ratio is calculated by dividing the sum of loss and loss adjustment expenses incurred, net and acquisition costs, net by net premiums earned.
	-4	General and administrative expense ratio is calculated by dividing general and administrative expenses related to underwriting activities by net premiums earned.
	-5	Combined ratio is calculated by dividing the sum of loss and loss adjustment expenses incurred, net, acquisition costs, net and general and administrative expenses related to underwriting activities by net premiums earned.
		Three Months Ended June 30, 2013
		Property and Casualty Reinsurance			Catastrophe Risk Management				Corporate				Total
	Revenues	($ in thousands)
	Gross premiums written	$	94,644		$	3,571			$	—			$	98,215
	Gross premiums ceded	—			—				—				—
	Net premiums written	94,644			3,571				—				98,215
	Change in net unearned premium reserves	(33,206		)	(2,722		)		—				(35,928		)
	Net premiums earned	61,438			849				—				62,287
	Expenses
	Loss and loss adjustment expenses incurred, net	45,304			388				—				45,692
	Acquisition costs, net	14,821			100				—				14,921
	General and administrative expenses	4,710			987				1,520				7,217
	Total expenses	64,835			1,475				1,520				67,830
	Net underwriting loss	(3,397		)	n/a				n/a				n/a
	Net investment income	2,530			359				29,937				32,826
	Other expenses	(759		)	—				—				(759		)
	Segment income (loss) including non-controlling interests	(1,626		)	(267		)		28,417				26,524
	Segment income attributable to non-controlling interests	—			(80		)		(221		)		(301		)
	Segment (loss) income	$	(1,626	)	$	(347	)		$	28,196			$	26,223
	Property and Casualty Reinsurance - Underwriting Ratios:
	Loss ratio (1)	73.7		%
	Acquisition cost ratio (2)	24.1		%
	Composite ratio (3)	97.8		%
	General and administrative expense ratio (4)	7.7		%
	Combined ratio (5)	105.5		%
	-1	Loss ratio is calculated by dividing loss and loss adjustment expenses incurred, net by net premiums earned.
	-2	Acquisition cost ratio is calculated by dividing acquisition costs, net by net premiums earned.
	-3	Composite ratio is calculated by dividing the sum of loss and loss adjustment expenses incurred, net and acquisition costs, net by net premiums earned.
	-4	General and administrative expense ratio is calculated by dividing general and administrative expenses related to underwriting activities by net premiums earned.
	-5	Combined ratio is calculated by dividing the sum of loss and loss adjustment expenses incurred, net, acquisition costs, net and general and administrative expenses related to underwriting activities by net premiums earned.
		Six months ended June 30, 2014
	Property and Casualty Reinsurance			Catastrophe Risk Management				Corporate				Total
Revenues	($ in thousands)
Gross premiums written	$	222,564		$	10,531			$	—			$	233,095
Gross premiums ceded	—			—				—				—
Net premiums written	222,564			10,531				—				233,095
Change in net unearned premium reserves	(72,775		)	(8,308		)		—				(81,083		)
Net premiums earned	149,789			2,223				—				152,012
Expenses
Loss and loss adjustment expenses incurred, net	90,668			—				—				90,668
Acquisition costs, net	54,906			108				—				55,014
General and administrative expenses	11,464			1,512				6,598				19,574
Total expenses	157,038			1,620				6,598				165,256
Net underwriting loss	(7,249		)	n/a				n/a				n/a
Net investment income	13,595			62				76,863				90,520
Other expenses	(1,807		)	—				—				(1,807		)
Income tax expense	—			—				(2,375		)		(2,375		)
Segment income including non-controlling interests	4,539			665				67,890				73,094
Segment income attributable to non-controlling interests	—			(529		)		(1,494		)		(2,023		)
Segment income	$	4,539		$	136			$	66,396			$	71,071
Property and Casualty Reinsurance - Underwriting Ratios:
Loss ratio (1)	60.5		%
Acquisition cost ratio (2)	36.7		%
Composite ratio (3)	97.2		%
General and administrative expense ratio (4)	7.7		%
Combined ratio (5)	104.9		%
-1	Loss ratio is calculated by dividing loss and loss adjustment expenses incurred, net by net premiums earned.
-2	Acquisition cost ratio is calculated by dividing acquisition costs, net by net premiums earned.
-3	Composite ratio is calculated by dividing the sum of loss and loss adjustment expenses incurred, net and acquisition costs, net by net premiums earned.
-4	General and administrative expense ratio is calculated by dividing general and administrative expenses related to underwriting activities by net premiums earned.
-5	Combined ratio is calculated by dividing the sum of loss and loss adjustment expenses incurred, net, acquisition costs, net and general and administrative expenses related to underwriting activities by net premiums earned.
	Six months ended June 30, 2013
	Property and Casualty Reinsurance			Catastrophe Risk Management				Corporate				Total
Revenues	($ in thousands)
Gross premiums written	$	187,515		$	6,720			$	—			$	194,235
Gross premiums ceded	(9,975		)	—				—				(9,975		)
Net premiums written	177,540			6,720				—				184,260
Change in net unearned premium reserves	(83,459		)	(4,973		)		—				(88,432		)
Net premiums earned	94,081			1,747				—				95,828
Expenses
Loss and loss adjustment expenses incurred, net	63,942			388				—				64,330
Acquisition costs, net	27,811			183				—				27,994
General and administrative expenses	9,526			1,772				2,927				14,225
Total expenses	101,279			2,343				2,927				106,549
Net underwriting loss	(7,198		)	n/a				n/a				n/a
Net investment income	8,056			1,122				105,009				114,187
Other expenses	(1,429		)	—				—				(1,429		)
Segment income (loss) including non-controlling interests	(571		)	526				102,082				102,037
Segment income attributable to non-controlling interests	—			(595		)		(789		)		(1,384		)
Segment (loss) income	$	(571	)	$	(69	)		$	101,293			$	100,653
Property and Casualty Reinsurance - Underwriting Ratios:
Loss ratio (1)	68		%
Acquisition cost ratio (2)	29.6		%
Composite ratio (3)	97.6		%
General and administrative expense ratio (4)	10.1		%
Combined ratio (5)	107.7		%
-1	Loss ratio is calculated by dividing loss and loss adjustment expenses incurred, net by net premiums earned.
-2	Acquisition cost ratio is calculated by dividing acquisition costs, net by net premiums earned.
-3	Composite ratio is calculated by dividing the sum of loss and loss adjustment expenses incurred, net and acquisition costs, net by net premiums earned.
-4	General and administrative expense ratio is calculated by dividing general and administrative expenses related to underwriting activities by net premiums earned.
-5	Combined ratio is calculated by dividing the sum of loss and loss adjustment expenses incurred, net, acquisition costs, net and general and administrative expenses related to underwriting activities by net premiums earned.
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, 2014 and 2013:
		For the three months ended
		30-Jun-14						30-Jun-13
		($ in thousands)
	Property	$	74,505		51.2	%		$	27,888			28.4	%
	Casualty	65,343			44.9	%		49,388				50.3	%
	Specialty	574			0.4	%		17,368				17.7	%
	Total property and casualty reinsurance	140,422			96.5	%		94,644				96.4	%
	Catastrophe risk management	5,086			3.5	%		3,571				3.6	%
		$	145,508		100	%		$	98,215			100	%
		For the six months ended
		30-Jun-14						30-Jun-13
		($ in thousands)
	Property	$	81,386		34.9	%		$	28,238			14.5	%
	Casualty	115,766			49.7	%		101,595				52.3	%
	Specialty	25,412			10.9	%		57,682				29.7	%
	Total property and casualty reinsurance	222,564			95.5	%		187,515				96.5	%
	Catastrophe risk management	10,531			4.5	%		6,720				3.5	%
		$	233,095		100	%		$	194,235			100	%
	The following table provides a breakdown of the Company’s gross premiums written by prospective and retroactive reinsurance contracts for the three and six months ended June 30, 2014 and 2013:
		For the three months ended													For the six months ended
		June 30, 2014						June 30, 2013							June 30, 2014				June 30, 2013
		($ in thousands)
	Prospective	$	144,934		99.6	%		$	75,915			77.3	%		$	230,419	98.9	%	$	171,935	88.5	%
	Retroactive	574			0.4	%		22,300				22.7	%		2,676		1.1	%	22,300		11.5	%
		$	145,508		100	%		$	98,215			100	%		$	233,095	100	%	$	194,235	100	%
Schedule of breakdown of the Company’s gross premiums written from brokers	'
	Substantially all of the Company's business is sourced through reinsurance brokers. The following table provides a breakdown of the Company's gross premiums written from brokers for the six months ended June 30, 2014 and 2013:
		2014						2013
		($ in thousands)
	Willis Re	$	57,047		24.5	%		$	13,421			6.9	%
	Advocate Reinsurance Partners, LLC	53,004			22.7	%		27,647				14.2	%
	Stonehill Reinsurance Partners, LLC	46,659			20	%		—				—	%
	Aon Benfield - a division of Aon plc	16,793			7.2	%		81,357				41.9	%
	Guy Carpenter & Company, LLC	15,074			6.5	%		(11,057		)		(5.7	)%
	TigerRisk Partners LLC	14,496			6.2	%		9,531				4.9	%
	BMS Intermediaries	—			—	%		10,019				5.2	%
	Other brokers	2,984			1.3	%		7,097				3.7	%
	Total broker placed	206,057			88.4	%		138,015				71.1	%
	Direct placements	27,038			11.6	%		56,220				28.9	%
		$	233,095		100	%		$	194,235			100	%
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 June 30, 2014 and 2013:
		For the three months ended													For the six months ended
		30-Jun-14						30-Jun-13							30-Jun-14				30-Jun-13
		($ in thousands)
	United States	$	144,657		99.4	%		$	93,992			95.7	%		$	202,734	87	%	$	143,650	74	%
	United Kingdom	575			0.4	%		—				—	%		25,413		10.9	%	—		—	%
	Bermuda	276			0.2	%		4,223				4.3	%		4,948		2.1	%	49,185		25.3	%
	Other	—			—	%		—				—	%		—		—	%	1,400		0.7	%
		$	145,508		100	%		$	98,215			100	%		$	233,095	100	%	$	194,235	100	%

Organization_Details

Organization (Details) (USD $)	Jun. 30, 2014	Jun. 30, 2013	Jun. 15, 2012	Jun. 15, 2012	Aug. 20, 2013
In Millions, except Share data, unless otherwise specified				Hiscox	IPO
				Catastrophe Fund Manager
Organization [Line Items]	'	'	'	'	'
Ownership percentage	'	'	85.00%	15.00%	'
Issuance of common shares (in shares)	'	'	'	'	24,832,484
Sale of stock, price per share (in dollars per share)	$15.05	$10.89	'	'	$12.50
Sale of stock, net proceeds	'	'	'	'	$286

Significant_accounting_policie2

Significant accounting policies (Details) (USD $)	6 Months Ended
	Jun. 30, 2014
	segment
Accounting Policies [Abstract]	'
Premium deficiency loss	$0
Number of operating segments	2

Significant_accounting_policie3

Significant accounting policies - Embedded derivatives (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Other expenses	$1,020	$759	$1,807	$1,429
Reclassification out of Accumulated Other Comprehensive Income [Member]	'	'	'	'
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]	'	'	'	'
Other expenses	$800	'	$1,400	'

Significant_accounting_policie4

Significant accounting policies - Income taxes and uncertain tax positions (Details) (USD $)

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

0 Months Ended

3 Months Ended

6 Months Ended

0 Months Ended

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Apr. 01, 2014

Mar. 31, 2014

Jun. 30, 2014

Jun. 30, 2014

Apr. 01, 2015

Investment Income [Member]

Investment Income [Member]

Investment Income [Member]

Investment Income [Member]

TPRUK [Member]

TPRUK [Member]

TPRUK [Member]

TPRUK [Member]

TPRUK [Member]

Her Majesty's Revenue and Customs (HMRC) [Member]

Her Majesty's Revenue and Customs (HMRC) [Member]

Her Majesty's Revenue and Customs (HMRC) [Member]

Her Majesty's Revenue and Customs (HMRC) [Member]

Her Majesty's Revenue and Customs (HMRC) [Member]

Scenario, Forecast [Member]

Income Tax Contingency [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

Corporate income tax rate

'

'

'

'

'

'

'

'

21.00%

23.00%

'

'

20.00%

Income tax expense

$2,375,000

$0

$2,375,000

$0

'

'

'

'

'

'

$20,000

$20,000

'

Investment income, tax expense

'

'

'

'

-1,000,000

-200,000

-1,000,000

-500,000

'

'

'

'

'

Provision for uncertain tax positions

$1,400,000

$0

$1,400,000

$0

'

'

'

'

'

'

'

'

'

Restricted_cash_and_cash_equiv2

Restricted cash and cash equivalents (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Restricted Cash and Cash Equivalents Items [Line Items]	'	'
Restricted cash and cash equivalents	$222,124	$193,577
Restricted cash securing collateralized reinsurance contracts written by the Catastrophe Reinsurer	'	'
Restricted Cash and Cash Equivalents Items [Line Items]	'	'
Restricted cash and cash equivalents	93,728	93,014
Restricted cash securing credit facilities	'	'
Restricted Cash and Cash Equivalents Items [Line Items]	'	'
Restricted cash and cash equivalents	$128,396	$100,563

Reinsurance_premiums_ceded_Det

Reinsurance premiums ceded (Details) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012
Ceded Credit Risk [Line Items]	'	'	'	'	'	'
Loss and loss expenses recovered	$0	$2,100,000	$1,000,000	$4,200,000	'	'
Loss and loss adjustment expenses recoverable	$10,274,000	$4,190,000	$10,274,000	$4,190,000	$9,277,000	$0
AM Best, A Rating	'	'	'	'	'	'
Ceded Credit Risk [Line Items]	'	'	'	'	'	'
Number of retrocessionaire	1	'	1	'	'	'

Investments_Schedule_of_the_se

Investments - Schedule of the separate account managed by TP LLC (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Assets	'	'
Total assets	$2,069,340	$1,741,411
Liabilities and non-controlling interest	'	'
Total liabilities and non-controlling interest	381,888	181,969
Total net investments managed by Third Point LLC	1,687,452	1,559,442
Total investments in securities and commodities	'	'
Assets	'	'
Total assets	1,805,225	1,460,864
Cash and cash equivalents	'	'
Assets	'	'
Total assets	9	869
Restricted cash and cash equivalents	'	'
Assets	'	'
Total assets	128,396	100,563
Due from brokers	'	'
Assets	'	'
Total assets	74,046	98,386
Securities purchased under an agreement to sell	'	'
Assets	'	'
Total assets	33,850	38,147
Derivative assets	'	'
Assets	'	'
Total assets	22,516	39,045
Interest and dividends receivable	'	'
Assets	'	'
Total assets	3,736	2,604
Other assets	'	'
Assets	'	'
Total assets	1,562	933
Accounts payable and accrued expenses	'	'
Liabilities and non-controlling interest	'	'
Total liabilities and non-controlling interest	247	1,759
Securities sold, not yet purchased, at fair value	'	'
Liabilities and non-controlling interest	'	'
Total liabilities and non-controlling interest	46,994	56,056
Due to brokers	'	'
Liabilities and non-controlling interest	'	'
Total liabilities and non-controlling interest	281,091	44,870
Derivative liabilities	'	'
Liabilities and non-controlling interest	'	'
Total liabilities and non-controlling interest	10,528	8,819
Performance fee payable to related party	'	'
Liabilities and non-controlling interest	'	'
Total liabilities and non-controlling interest	22,002	0
Interest and dividends payable	'	'
Liabilities and non-controlling interest	'	'
Total liabilities and non-controlling interest	816	748
Non-controlling interest	'	'
Liabilities and non-controlling interest	'	'
Total liabilities and non-controlling interest	$20,210	$69,717

Investments_Schedule_of_invest

Investments - Schedule of investments, categorized by the level of the fair value hierarchy (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Assets	'	'
Equity securities	$1,157,075	$857,817
Private common equity securities	5,288	96,294
Total equities	1,162,363	954,111
Asset-backed securities	371,458	325,533
Bank debts	11,829	8,017
Corporate bonds	104,864	86,749
Municipal bonds	19,431	10,486
Sovereign debt	43,871	10,639
Total debt securities	551,453	441,424
Investments in limited partnerships	72,263	34,578
Options	2,783	13,069
Rights and warrants	297	1
Trade claims	16,066	17,681
Catastrophe bond	2,003	'
Total other investments	93,412	65,329
Derivative assets, at fair value	22,516	39,045
Total assets	1,829,744	1,499,909
Liabilities	'	'
Equity securities	4,008	5,207
Sovereign debt	33,213	37,592
Corporate bonds	4,699	3,372
Options	5,074	9,885
Total securities sold, not yet purchased	46,994	56,056
Derivative liabilities (embedded)	5,538	4,430
Derivative liabilities, at fair value	10,528	8,819
Total liabilities	63,060	69,305
Quoted prices in active markets (Level 1)	'	'
Assets	'	'
Equity securities	1,118,096	839,903
Private common equity securities	0	0
Total equities	1,118,096	839,903
Asset-backed securities	0	0
Bank debts	0	0
Corporate bonds	0	0
Municipal bonds	0	0
Sovereign debt	0	0
Total debt securities	0	0
Investments in limited partnerships	0	0
Options	2,619	6,284
Rights and warrants	297	1
Trade claims	0	0
Catastrophe bond	0	'
Total other investments	2,916	6,285
Derivative assets, at fair value	0	321
Total assets	1,121,012	846,509
Liabilities	'	'
Equity securities	4,008	5,207
Sovereign debt	0	0
Corporate bonds	0	0
Options	3,614	4,714
Total securities sold, not yet purchased	7,622	9,921
Derivative liabilities (embedded)	0	0
Derivative liabilities, at fair value	532	441
Total liabilities	8,154	10,362
Significant other observable inputs (Level 2)	'	'
Assets	'	'
Equity securities	38,979	17,914
Private common equity securities	2,988	94,282
Total equities	41,967	112,196
Asset-backed securities	369,017	325,133
Bank debts	11,829	8,017
Corporate bonds	99,711	82,139
Municipal bonds	19,431	10,486
Sovereign debt	43,841	10,639
Total debt securities	543,829	436,414
Investments in limited partnerships	66,492	29,286
Options	164	6,785
Rights and warrants	0	0
Trade claims	16,066	17,681
Catastrophe bond	2,003	'
Total other investments	84,725	53,752
Derivative assets, at fair value	22,516	38,724
Total assets	693,037	641,086
Liabilities	'	'
Equity securities	0	0
Sovereign debt	33,213	37,592
Corporate bonds	4,699	3,372
Options	1,460	5,171
Total securities sold, not yet purchased	39,372	46,135
Derivative liabilities (embedded)	0	0
Derivative liabilities, at fair value	9,996	8,378
Total liabilities	49,368	54,513
Significant unobservable inputs (Level 3)	'	'
Assets	'	'
Equity securities	0	0
Private common equity securities	2,300	2,012
Total equities	2,300	2,012
Asset-backed securities	2,441	400
Bank debts	0	0
Corporate bonds	5,153	4,610
Municipal bonds	0	0
Sovereign debt	30	0
Total debt securities	7,624	5,010
Investments in limited partnerships	5,771	5,292
Options	0	0
Rights and warrants	0	0
Trade claims	0	0
Catastrophe bond	0	'
Total other investments	5,771	5,292
Derivative assets, at fair value	0	0
Total assets	15,695	12,314
Liabilities	'	'
Equity securities	0	0
Sovereign debt	0	0
Corporate bonds	0	0
Options	0	0
Total securities sold, not yet purchased	0	0
Derivative liabilities (embedded)	5,538	4,430
Derivative liabilities, at fair value	0	0
Total liabilities	$5,538	$4,430

Investments_Schedule_of_reconc

Investments - Schedule of reconciliation of the balances for all investments measured at fair value using significant unobservable inputs (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Assets	'	'	'	'
Asset fair value, beginning balance	$15,453	$13,760	$12,314	$3,857
Transfers in to (out of) Level 3	-3,552	-7,915	-1,631	-1,047
Purchases	3,205	5,421	4,710	7,075
Sales	-332	-3,257	-2,235	-3,257
Realized and Unrealized Gains (Losses)	921	865	2,537	2,246
Asset fair value, ending balance	15,695	8,874	15,695	8,874
Liabilities	'	'	'	'
Liability fair value, beginning balance	'	-4,012	'	-2,510
Transfers in to (out of) Level 3	'	0	'	0
Purchases	'	0	'	0
Sales	'	-2,710	'	-4,805
Realized and Unrealized Gains (Losses)	'	302	'	895
Liability fair value, ending balance	'	-6,420	'	-6,420
Derivative liabilities (free standing)	'	'	'	'
Liabilities	'	'	'	'
Liability fair value, beginning balance	-5,356	-1,332	-4,430	0
Transfers in to (out of) Level 3	0	0	0	0
Purchases	0	0	0	0
Sales	0	-1,250	-783	-3,345
Realized and Unrealized Gains (Losses)	-182	342	-325	1,105
Liability fair value, ending balance	-5,538	-2,240	-5,538	-2,240
Derivative liabilities (embedded)	'	'	'	'
Liabilities	'	'	'	'
Liability fair value, beginning balance	'	-2,680	'	-2,510
Transfers in to (out of) Level 3	'	0	'	0
Purchases	'	0	'	0
Sales	'	-1,460	'	-1,460
Realized and Unrealized Gains (Losses)	'	-40	'	-210
Liability fair value, ending balance	'	-4,180	'	-4,180
Asset-backed securities	'	'	'	'
Assets	'	'	'	'
Asset fair value, beginning balance	3,552	0	400	0
Transfers in to (out of) Level 3	-3,552	309	-1,631	309
Purchases	2,441	149	3,805	149
Sales	0	0	-1,903	0
Realized and Unrealized Gains (Losses)	0	-264	1,770	-264
Asset fair value, ending balance	2,441	194	2,441	194
Bank debt	'	'	'	'
Assets	'	'	'	'
Asset fair value, beginning balance	'	'	'	54
Transfers in to (out of) Level 3	'	'	'	-54
Purchases	'	'	'	0
Sales	'	'	'	0
Realized and Unrealized Gains (Losses)	'	'	'	0
Asset fair value, ending balance	'	0	'	0
Corporate bonds	'	'	'	'
Assets	'	'	'	'
Asset fair value, beginning balance	4,781	9,354	4,610	1,046
Transfers in to (out of) Level 3	0	-8,224	0	-1,302
Purchases	734	3,984	821	3,984
Sales	-332	-1,120	-332	-1,120
Realized and Unrealized Gains (Losses)	-30	310	54	1,696
Asset fair value, ending balance	5,153	4,304	5,153	4,304
Private common equity securities	'	'	'	'
Assets	'	'	'	'
Asset fair value, beginning balance	2,012	4,406	2,012	2,757
Transfers in to (out of) Level 3	0	0	0	0
Purchases	0	0	0	1,654
Sales	0	-1,795	0	-1,795
Realized and Unrealized Gains (Losses)	288	862	288	857
Asset fair value, ending balance	2,300	3,473	2,300	3,473
Investments in limited partnerships	'	'	'	'
Assets	'	'	'	'
Asset fair value, beginning balance	5,108	0	5,292	0
Transfers in to (out of) Level 3	0	0	0	0
Purchases	0	1,288	54	1,288
Sales	0	-342	0	-342
Realized and Unrealized Gains (Losses)	663	-43	425	-43
Asset fair value, ending balance	5,771	903	5,771	903
Sovereign debt	'	'	'	'
Assets	'	'	'	'
Asset fair value, beginning balance	0	'	0	'
Transfers in to (out of) Level 3	0	'	0	'
Purchases	30	'	30	'
Sales	0	'	0	'
Realized and Unrealized Gains (Losses)	0	'	0	'
Asset fair value, ending balance	$30	'	$30	'

Investments_Narrative_Details

Investments - Narrative (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013
Fair Value Disclosures [Abstract]	'	'	'
Securities valued based on dealer quotes or other quoted market prices for similar securities	$463,100,000	$483,200,000	'
Percent of securities valued based on dealer quotes or other quoted market prices for similar securities	25.70%	33.10%	'
Securities sold, not yet purchased, valued based on dealer quotes or other quoted market prices for similar securities	37,900,000	41,000,000	'
Percent of securities sold, not yet purchased, valued based on dealer quotes or other quoted market prices for similar securities	80.70%	73.10%	'
Private common equity securities	3,100,000	3,300,000	'
Securities fair valued by using information obtained from the Company's Investment Manager representing less than 1% of total investments in securities and commodities	1.00%	1.00%	'
Asset transfers from level 1 to level 2	0	'	0
Asset transfers from level 2 to level 1	86.6	'	0
Liability transfers from level 1 to level 2	0	'	0
Liability transfers from level 2 to level 1	0	'	0
Total unrealized gain (loss) related to fair value assets using significant unobservable inputs (Level 3	$600,000	'	$400,000

Securities_purchased_under_an_1

Securities purchased under an agreement to sell (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2014
In Millions, unless otherwise specified			Reverse repurchase agreements	Reverse repurchase agreements	Reverse repurchase agreements	Reverse repurchase agreements	Minimum	Maximum
Investment Holdings [Line Items]	'	'	'	'	'	'	'	'
Reverse repurchase agreements outstanding	$33.90	$38.10	'	'	'	'	'	'
Securities received as collateral	33.2	37.6	'	'	'	'	'	'
Foreign currency gain (loss)	'	'	($0.20)	$0.50	($0.20)	$0.04	'	'
Maturity term for reverse repurchase agreements	'	'	'	'	'	'	'30 days	'90 days

Due_fromto_brokers_Details

Due from/to brokers (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Due to and from Broker-Dealers and Clearing Organizations [Abstract]	'	'
Due to brokers	$288.20	$268.50

Derivatives_Schedule_of_listin

Derivatives - Schedule of listing currency, fair value and notional amounts of derivative instruments (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Derivative [Line Items]	'	'	'	'	'
Derivative assets, at fair value	$22,516	'	$22,516	'	$39,045
Derivative assets, Notional amount	926,640	'	926,640	'	880,197
Derivative liabilities, at fair value	10,528	'	10,528	'	8,819
Derivative liabilities, Notional amount	813,321	'	813,321	'	1,089,050
Derivative liabilities (embedded)	5,538	'	5,538	'	4,430
Realized Gain (Loss) on Derivatives	6,848	3,390	8,649	22,448	'
Unrealized Gain (Loss) on Derivatives	-8,630	-1,838	-16,684	-4,056	'
Embedded derivative liability, Notional amount	90,000	'	90,000	'	75,000
Commodity Future Options | Long Contracts / Purchased	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Derivative assets, at fair value	'	'	'	'	256
Derivative assets, Notional amount	'	'	'	'	12,325
Realized Gain (Loss) on Derivatives	0	-2,455	0	-2,455	'
Unrealized Gain (Loss) on Derivatives	0	0	0	0	'
Commodity Future Options | Short Contracts / Sold	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Realized Gain (Loss) on Derivatives	0	176	0	563	'
Unrealized Gain (Loss) on Derivatives	0	-30	0	-212	'
Credit Default Swaps - Protection Purchased	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Derivative assets, at fair value	11,349	'	11,349	'	15,397
Derivative assets, Notional amount	105,945	'	105,945	'	109,520
Derivative liabilities, at fair value	2,905	'	2,905	'	2,634
Derivative liabilities, Notional amount	76,193	'	76,193	'	59,446
Realized Gain (Loss) on Derivatives	-1,511	-9,530	-2,314	-8,815	'
Unrealized Gain (Loss) on Derivatives	-615	7,535	-3,521	5,330	'
Credit Default Swaps - Protection Sold	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Derivative assets, at fair value	1,221	'	1,221	'	1,157
Derivative assets, Notional amount	11,481	'	11,481	'	9,557
Derivative liabilities, at fair value	1,254	'	1,254	'	348
Derivative liabilities, Notional amount	4,555	'	4,555	'	875
Realized Gain (Loss) on Derivatives	104	8,151	185	8,151	'
Unrealized Gain (Loss) on Derivatives	323	-7,792	204	-7,791	'
Contracts for Differences | Long Contracts / Purchased	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Derivative assets, at fair value	3,716	'	3,716	'	10,549
Derivative assets, Notional amount	50,889	'	50,889	'	62,847
Derivative liabilities, at fair value	370	'	370	'	66
Derivative liabilities, Notional amount	22,343	'	22,343	'	14,607
Realized Gain (Loss) on Derivatives	4,760	2,576	5,036	8,690	'
Unrealized Gain (Loss) on Derivatives	-4,566	-3,926	-7,135	-4,242	'
Contracts for Differences | Short Contracts / Sold	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Derivative assets, at fair value	'	'	'	'	67
Derivative assets, Notional amount	'	'	'	'	2,758
Derivative liabilities, at fair value	307	'	307	'	425
Derivative liabilities, Notional amount	4,402	'	4,402	'	7,253
Realized Gain (Loss) on Derivatives	-518	854	-2,338	989	'
Unrealized Gain (Loss) on Derivatives	-228	-250	51	437	'
Total Return Swaps | Long Contracts / Purchased	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Derivative assets, at fair value	1,899	'	1,899	'	2,950
Derivative assets, Notional amount	19,768	'	19,768	'	68,044
Derivative liabilities, at fair value	2	'	2	'	1,385
Derivative liabilities, Notional amount	13,156	'	13,156	'	24,807
Realized Gain (Loss) on Derivatives	5,101	41	9,791	1,005	'
Unrealized Gain (Loss) on Derivatives	-408	-1,267	332	-933	'
Total Return Swaps | Short Contracts / Sold	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Derivative assets, at fair value	'	'	'	'	3
Derivative assets, Notional amount	'	'	'	'	290
Derivative liabilities, at fair value	635	'	635	'	140
Derivative liabilities, Notional amount	7,300	'	7,300	'	5,037
Realized Gain (Loss) on Derivatives	337	1,459	524	1,254	'
Unrealized Gain (Loss) on Derivatives	-264	-484	-497	164	'
Interest Rate Swaps	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Derivative assets, at fair value	175	'	175	'	182
Derivative assets, Notional amount	211,261	'	211,261	'	212,594
Derivative liabilities, at fair value	464	'	464	'	821
Derivative liabilities, Notional amount	210,623	'	210,623	'	465,560
Realized Gain (Loss) on Derivatives	167	635	-457	629	'
Unrealized Gain (Loss) on Derivatives	56	-477	349	487	'
Interest Rate Swaptions	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Derivative assets, at fair value	2,193	'	2,193	'	1,269
Derivative assets, Notional amount	357,585	'	357,585	'	54,884
Derivative liabilities, at fair value	1,608	'	1,608	'	174
Derivative liabilities, Notional amount	182,777	'	182,777	'	99,587
Realized Gain (Loss) on Derivatives	-1	-13	529	-169	'
Unrealized Gain (Loss) on Derivatives	-657	-58	-1,576	33	'
Treasury Futures | Short Contracts / Sold	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Derivative assets, at fair value	'	'	'	'	108
Derivative assets, Notional amount	'	'	'	'	6,544
Derivative liabilities, at fair value	21	'	21	'	'
Derivative liabilities, Notional amount	11,089	'	11,089	'	'
Realized Gain (Loss) on Derivatives	-385	87	-641	435	'
Unrealized Gain (Loss) on Derivatives	-2	157	-129	-430	'
Foreign Currency Forward	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Derivative assets, at fair value	'	'	'	'	1,332
Derivative assets, Notional amount	'	'	'	'	59,925
Derivative liabilities, at fair value	1,916	'	1,916	'	709
Derivative liabilities, Notional amount	181,606	'	181,606	'	189,030
Realized Gain (Loss) on Derivatives	-315	-1,784	219	6,310	'
Unrealized Gain (Loss) on Derivatives	-1,625	3,523	-2,540	1,995	'
Foreign Currency Options | Long Contracts / Purchased	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Derivative assets, at fair value	1,963	'	1,963	'	5,563
Derivative assets, Notional amount	169,711	'	169,711	'	240,062
Realized Gain (Loss) on Derivatives	-474	4,110	-1,740	8,617	'
Unrealized Gain (Loss) on Derivatives	-305	1,686	-2,152	462	'
Foreign Currency Options | Short Contracts / Sold	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Derivative liabilities, at fair value	535	'	535	'	1,528
Derivative liabilities, Notional amount	26,083	'	26,083	'	178,476
Realized Gain (Loss) on Derivatives	0	-1,544	686	-3,196	'
Unrealized Gain (Loss) on Derivatives	214	-894	385	-212	'
Commodity Future Options | Long Contracts / Purchased	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Realized Gain (Loss) on Derivatives	0	-77	-271	-141	'
Unrealized Gain (Loss) on Derivatives	0	-2	-5	-1	'
Commodity Future Options | Short Contracts / Sold	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Derivative liabilities, at fair value	'	'	'	'	148
Derivative liabilities, Notional amount	'	'	'	'	35,484
Realized Gain (Loss) on Derivatives	'	'	316	0	'
Unrealized Gain (Loss) on Derivatives	'	'	-168	0	'
Index Futures | Short Contracts / Sold	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Derivative liabilities, at fair value	369	'	369	'	441
Derivative liabilities, Notional amount	27,173	'	27,173	'	8,888
Realized Gain (Loss) on Derivatives	-193	0	-332	19	'
Unrealized Gain (Loss) on Derivatives	-369	0	72	0	'
Bond Futures | Short Contracts / Sold	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Derivative assets, at fair value	'	'	'	'	212
Derivative assets, Notional amount	'	'	'	'	40,847
Derivative liabilities, at fair value	142	'	142	'	'
Derivative liabilities, Notional amount	46,021	'	46,021	'	'
Realized Gain (Loss) on Derivatives	-224	704	-544	562	'
Unrealized Gain (Loss) on Derivatives	-184	99	-354	-248	'
Reinsurance contract derivatives	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Realized Gain (Loss) on Derivatives	0	0	0	0	'
Unrealized Gain (Loss) on Derivatives	0	342	0	1,105	'
Embedded derivatives in reinsurance contracts	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Derivative liabilities (embedded)	888	'	888	'	'
Realized Gain (Loss) on Derivatives	0	0	0	0	'
Unrealized Gain (Loss) on Derivatives	-43	0	-106	0	'
Embedded derivative liability, Notional amount	15,000	'	15,000	'	'
Embedded derivatives in deposit contracts	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Derivative liabilities (embedded)	4,650	'	4,650	'	4,430
Realized Gain (Loss) on Derivatives	0	0	0	0	'
Unrealized Gain (Loss) on Derivatives	-139	-40	-219	-210	'
Embedded derivative liability, Notional amount	75,000	'	75,000	'	75,000
Derivative liabilities (embedded)	'	'	'	'	'
Derivative [Line Items]	'	'	'	'	'
Realized Gain (Loss) on Derivatives	0	0	0	0	'
Unrealized Gain (Loss) on Derivatives	($182)	($40)	($325)	($210)	'

Derivatives_Narrative_Details

Derivatives - Narrative (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Millions, unless otherwise specified
Derivative Instruments and Hedging Activities Disclosure [Abstract]	'	'
Cash collateral posted	$37.10	$35.40

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 $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Gross Amounts not offset in the condensed consolidated balance sheet	'	'
Gross Amounts of Assets Presented in the condensed consolidated balance sheet	$22,516	$39,045
Financial Instruments	8,560	7,917
Cash Collateral Received	6,168	12,094
Net Amount	7,788	19,034
Gross Amounts not offset in the condensed consolidated balance sheet	'	'
Gross Amounts of Liabilities Presented in the condensed consolidated balance sheet	10,528	8,819
Financial Instruments	8,560	7,917
Cash Collateral Pledged	1,968	902
Net Amount	0	0
Counterparty 1	'	'
Gross Amounts not offset in the condensed consolidated balance sheet	'	'
Gross Amounts of Assets Presented in the condensed consolidated balance sheet	886	1,128
Financial Instruments	886	1,041
Cash Collateral Received	0	0
Net Amount	0	87
Gross Amounts not offset in the condensed consolidated balance sheet	'	'
Gross Amounts of Liabilities Presented in the condensed consolidated balance sheet	1,440	1,041
Financial Instruments	886	1,041
Cash Collateral Pledged	554	0
Net Amount	0	0
Counterparty 2	'	'
Gross Amounts not offset in the condensed consolidated balance sheet	'	'
Gross Amounts of Assets Presented in the condensed consolidated balance sheet	1,648	4,998
Financial Instruments	528	400
Cash Collateral Received	0	1,629
Net Amount	1,120	2,969
Gross Amounts not offset in the condensed consolidated balance sheet	'	'
Gross Amounts of Liabilities Presented in the condensed consolidated balance sheet	528	400
Financial Instruments	528	400
Cash Collateral Pledged	0	0
Net Amount	0	0
Counterparty 3	'	'
Gross Amounts not offset in the condensed consolidated balance sheet	'	'
Gross Amounts of Assets Presented in the condensed consolidated balance sheet	7,912	16,066
Financial Instruments	3,897	3,509
Cash Collateral Received	0	0
Net Amount	4,015	12,557
Gross Amounts not offset in the condensed consolidated balance sheet	'	'
Gross Amounts of Liabilities Presented in the condensed consolidated balance sheet	3,897	3,509
Financial Instruments	3,897	3,509
Cash Collateral Pledged	0	0
Net Amount	0	0
Counterparty 4	'	'
Gross Amounts not offset in the condensed consolidated balance sheet	'	'
Gross Amounts of Assets Presented in the condensed consolidated balance sheet	1,054	1,351
Financial Instruments	1,054	1,351
Cash Collateral Received	0	0
Net Amount	0	0
Gross Amounts not offset in the condensed consolidated balance sheet	'	'
Gross Amounts of Liabilities Presented in the condensed consolidated balance sheet	1,540	1,360
Financial Instruments	1,054	1,351
Cash Collateral Pledged	486	9
Net Amount	0	0
Counterparty 5	'	'
Gross Amounts not offset in the condensed consolidated balance sheet	'	'
Gross Amounts of Assets Presented in the condensed consolidated balance sheet	1,656	3,198
Financial Instruments	1,656	1,054
Cash Collateral Received	0	0
Net Amount	0	2,144
Gross Amounts not offset in the condensed consolidated balance sheet	'	'
Gross Amounts of Liabilities Presented in the condensed consolidated balance sheet	1,804	1,054
Financial Instruments	1,656	1,054
Cash Collateral Pledged	148	0
Net Amount	0	0
Counterparty 6	'	'
Gross Amounts not offset in the condensed consolidated balance sheet	'	'
Gross Amounts of Assets Presented in the condensed consolidated balance sheet	8,674	12,234
Financial Instruments	458	492
Cash Collateral Received	5,608	10,465
Net Amount	2,608	1,277
Gross Amounts not offset in the condensed consolidated balance sheet	'	'
Gross Amounts of Liabilities Presented in the condensed consolidated balance sheet	458	492
Financial Instruments	458	492
Cash Collateral Pledged	0	0
Net Amount	0	0
Counterparty 7	'	'
Gross Amounts not offset in the condensed consolidated balance sheet	'	'
Gross Amounts of Assets Presented in the condensed consolidated balance sheet	31	2
Financial Instruments	31	2
Cash Collateral Received	0	0
Net Amount	0	0
Gross Amounts not offset in the condensed consolidated balance sheet	'	'
Gross Amounts of Liabilities Presented in the condensed consolidated balance sheet	480	59
Financial Instruments	31	2
Cash Collateral Pledged	449	57
Net Amount	0	0
Counterparty 8	'	'
Gross Amounts not offset in the condensed consolidated balance sheet	'	'
Gross Amounts of Assets Presented in the condensed consolidated balance sheet	50	0
Financial Instruments	50	0
Cash Collateral Received	0	0
Net Amount	0	0
Gross Amounts not offset in the condensed consolidated balance sheet	'	'
Gross Amounts of Liabilities Presented in the condensed consolidated balance sheet	381	0
Financial Instruments	50	0
Cash Collateral Pledged	331	0
Net Amount	0	0
Counterparty 9	'	'
Gross Amounts not offset in the condensed consolidated balance sheet	'	'
Gross Amounts of Assets Presented in the condensed consolidated balance sheet	605	68
Financial Instruments	0	68
Cash Collateral Received	560	0
Net Amount	45	0
Gross Amounts not offset in the condensed consolidated balance sheet	'	'
Gross Amounts of Liabilities Presented in the condensed consolidated balance sheet	'	904
Financial Instruments	'	68
Cash Collateral Pledged	'	836
Net Amount	'	$0

Loss_and_loss_adjustment_expen2

Loss and loss adjustment expense reserves - Schedule of loss and loss adjustment expense reserves (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Loss and Loss Adjustment Expense Reserves [Abstract]	'	'
Case loss and loss adjustment expense reserves	$42,488	$34,307
Incurred but not reported loss and loss adjustment expense reserves	142,139	100,024
Loss and loss adjustment expense reserves	$184,627	$134,331

Loss_and_loss_adjustment_expen3

Loss and loss adjustment expense reserves - Schedule of activity in the reserve for losses and loss adjustment expenses (Details) (USD $)	6 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013
Liability for Unpaid Claims and Claims Adjustment Expense [Roll Forward]	'	'	'
Gross reserves for loss and loss adjustment expenses, beginning of period	$134,331	$67,271	$113,100
Less: loss and loss adjustment expenses recoverable, beginning of period	-9,277	0	-4,190
Net reserves for loss and loss adjustment expenses, beginning of period	-125,054	-67,271	108,910
Increase (decrease) in net loss and loss adjustment expenses incurred in respect of losses occurring in:	'	'	'
Current year	88,059	67,154	'
Prior years'	2,609	-2,824	'
Total incurred loss and loss adjustment expenses	90,668	64,330	'
Net loss and loss adjustment expenses paid in respect of losses occurring in:	'	'	'
Current year	-22,141	-6,044	'
Prior years'	-19,228	-16,647	'
Total net paid losses	-41,369	-22,691	'
Net reserve for loss and loss adjustment expenses, end of period	174,353	-125,054	108,910
Plus: loss and loss adjustment expenses recoverable, end of period	10,274	9,277	4,190
Gross reserve for loss and loss adjustment expenses, end of period	184,627	134,331	113,100
Decrease in Reserve	'	'	'
Increase (decrease) in net loss and loss adjustment expenses incurred in respect of losses occurring in:	'	'	'
Prior years'	'	-2,800	'
Favorable Loss/ Experience on Contracts	'	'	'
Increase (decrease) in net loss and loss adjustment expenses incurred in respect of losses occurring in:	'	'	'
Prior years'	1,100	'	'
Premium Estimate Decreases/Increases	'	'	'
Increase (decrease) in net loss and loss adjustment expenses incurred in respect of losses occurring in:	'	'	'
Prior years'	$1,500	'	'

Management_performance_and_fou2

Management, performance and founders fees (Details) (USD $)

Jun. 30, 2014

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2013

Jun. 30, 2014

Third Point Advisors LLC

TP LLC and Various Third Point Re Founders

Performance fees due under the Investment Agreement

Investment Income [Member]

Investment Income [Member]

Investment Income [Member]

Investment Income [Member]

Investment Income [Member]

Investment Income [Member]

Investment Income [Member]

Investment Income [Member]

Investment Income [Member]

Investment Income [Member]

Investment Income [Member]

Investment Income [Member]

Investment Income [Member]

Investment Income [Member]

Investment Income [Member]

Investment Income [Member]

Third Point LLC

Third Point LLC

Third Point LLC

Third Point LLC

Founders

Founders

Founders

Founders

Third Point Advisors LLC

Third Point Advisors LLC

Third Point Advisors LLC

Performance fees due under the Investment Agreement

Third Point Advisors LLC

Related Party Transaction [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Annual investment performance fee

20.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Annual investment management fee

'

2.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Investment fee expenses

'

'

'

$17,971,000

$13,360,000

$38,190,000

$38,192,000

$1,240,000

$795,000

$2,428,000

$1,519,000

$7,025,000

$4,502,000

$13,760,000

$8,604,000

$9,706,000

$8,063,000

$28,069,000

$22,002,000

Performance fee payable

'

'

$63,000,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Deposit_contracts_Details

Deposit contracts (Details) (USD $)	6 Months Ended	12 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Schedule of deposit contracts	'	'
Balance, beginning of period	$120,946	$50,446
Consideration received	0	66,369
Net investment expense allocation and change in fair value of embedded derivatives	1,263	4,731
Payments	-250	-600
Balance, end of period	$121,959	$120,946
Minimum	'	'
Deposit Contracts [Line Items]	'	'
Aggregate excess of loss agreement, crediting rate	2.50%	'
Aggregate excess of loss agreement, variable crediting rate	6.10%	'
Maximum	'	'
Deposit Contracts [Line Items]	'	'
Aggregate excess of loss agreement, crediting rate	3.00%	'
Aggregate excess of loss agreement, variable crediting rate	6.50%	'

General_and_administrative_exp2

General and administrative expenses (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
General and Administrative Expense [Abstract]	'	'	'	'
Payroll and related	$3,928	$3,349	$8,225	$6,704
Share compensation expenses	2,246	1,716	4,498	3,468
Legal and accounting	968	481	2,097	995
Travel and entertainment	828	427	1,575	1,069
IT related	330	354	792	584
Corporate insurance	275	92	589	212
Occupancy	164	112	285	225
Credit facility fees	220	220	406	360
Director and board costs	162	28	296	59
Other general and administrative expenses	428	438	811	549
General and administrative expenses	$9,549	$7,217	$19,574	$14,225

Net_investment_income_Details

Net investment income (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net Investment Income [Abstract]	'	'	'	'
Net realized gains on investments and investment derivatives	$46,556	$13,712	$131,308	$112,895
Net unrealized gains (losses) on investments and investment derivatives	11,295	22,536	-4,959	24,305
Net realized (loss) gain on foreign currencies	-4,350	5,324	-8,274	5,717
Dividend and interest income	8,049	5,755	15,777	11,300
Dividends paid on securities sold, not yet purchased	-1	-166	-34	-436
Management and performance fees	-17,971	-13,360	-38,190	-38,192
Other expenses	-3,126	-1,334	-5,170	-2,524
Net investment income on investments managed by Third Point LLC	40,452	32,467	90,458	113,065
Investment income on cash held by the Catastrophe Reinsurer and Catastrophe Fund	28	0	57	0
Net gain on catastrophe bond held by Catastrophe Reinsurer	5	0	5	0
Net gain on reinsurance contract derivatives written by the Catastrophe Reinsurer	0	359	0	1,122
Net investment income	40,485	32,826	90,520	114,187
Net investment gains on equity securities	'	'	'	'
Schedule of Cost-method Investments [Line Items]	'	'	'	'
Change in net investment income	22,822	31,612	50,645	107,321
Net investment gains on debt securities	'	'	'	'
Schedule of Cost-method Investments [Line Items]	'	'	'	'
Change in net investment income	31,783	8,570	86,975	42,599
Net investment (losses) gains on other investments	'	'	'	'
Schedule of Cost-method Investments [Line Items]	'	'	'	'
Change in net investment income	-3,785	12,318	-4,980	3,078
Net investment (losses) gains on investment derivatives	'	'	'	'
Schedule of Cost-method Investments [Line Items]	'	'	'	'
Change in net investment income	-1,782	1,566	-8,035	18,409
Net investment gains (losses) on securities sold, not yet purchased	'	'	'	'
Schedule of Cost-method Investments [Line Items]	'	'	'	'
Change in net investment income	15,397	-11,658	15,384	-21,874
Net investment (loss) income on cash, including foreign exchange gains (losses)	'	'	'	'
Schedule of Cost-method Investments [Line Items]	'	'	'	'
Change in net investment income	-4,718	4,528	-9,173	5,133
Net investment gains (losses) on securities purchased under and agreement to resell	'	'	'	'
Schedule of Cost-method Investments [Line Items]	'	'	'	'
Change in net investment income	-224	517	-211	21
Management and performance fees	'	'	'	'
Schedule of Cost-method Investments [Line Items]	'	'	'	'
Change in net investment income	-17,971	-13,360	-38,190	-38,192
Other investment expenses	'	'	'	'
Schedule of Cost-method Investments [Line Items]	'	'	'	'
Change in net investment income	($1,037)	($1,267)	($1,895)	($2,308)

Other_expenses_Details

Other expenses (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Other Income and Expenses [Abstract]	'	'	'	'
Deposit liabilities and reinsurance contracts investment expense	$837	$719	$1,481	$1,219
Change in fair value of embedded derivatives in deposit and reinsurance contracts (1)	183	40	326	210
Other expenses	$1,020	$759	$1,807	$1,429

Share_capital_Authorized_and_i

Share capital - Authorized and issued (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013	Aug. 20, 2013
In Millions, except Share data, unless otherwise specified				IPO
Equity [Abstract]	'	'	'	'
Authorized share capital	$33	'	'	'
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	'	'
Common share, shares issued (in shares)	103,931,386	103,888,916	'	'
Common share, shares outstanding (in shares)	103,931,386	103,888,916	'	'
Preference shares, shares issued (in shares)	0	0	'	'
Class of Stock [Line Items]	'	'	'	'
Issuance of common shares (in shares)	'	'	'	24,832,484
Sale of stock, price per share (in dollars per share)	$15.05	'	$10.89	$12.50
Sale of stock, net proceeds	'	'	'	$286

Share_capital_Warrants_Details

Share capital - Warrants (Details) (USD $)	6 Months Ended
	Jun. 30, 2014	Aug. 20, 2013	Aug. 18, 2013
Class of Warrant or Right [Line Items]	'	'	'
Maximum percent of warrants reserved for issuance	4.00%	'	'
Maximum value of warrants reserved for issuance	$1,000,000,000	'	'
Exercise price (in dollars per share)	10	'	'
Authorized and issued (in shares)	4,651,163	'	'
Aggregated fair value of warrants	17,374,000	'	'
Warrants authorized and issued (in shares)	'	1,003,157	3,648,006
Term of warrants	'10 years	'	'
Founders	'	'	'
Class of Warrant or Right [Line Items]	'	'	'
Maximum percent of warrants reserved for issuance	3.50%	'	'
Exercise price (in dollars per share)	10	'	'
Authorized and issued (in shares)	4,069,768	'	'
Aggregated fair value of warrants	15,203,000	'	'
Advisor	'	'	'
Class of Warrant or Right [Line Items]	'	'	'
Maximum percent of warrants reserved for issuance	0.50%	'	'
Exercise price (in dollars per share)	10	'	'
Authorized and issued (in shares)	581,395	'	'
Aggregated fair value of warrants	$2,171,000	'	'

Sharebased_compensation_Narrat

Share-based compensation - Narrative (Details) (USD $)

3 Months Ended

6 Months Ended

12 Months Ended

3 Months Ended

6 Months Ended

3 Months Ended

6 Months Ended

10 Months Ended

0 Months Ended

3 Months Ended

6 Months Ended

12 Months Ended

3 Months Ended

6 Months Ended

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Dec. 31, 2013

Dec. 31, 2012

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Aug. 20, 2013

Aug. 18, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2014

Nov. 04, 2013

Nov. 06, 2013

Nov. 06, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Dec. 31, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Dec. 31, 2013

Jul. 15, 2013

General and administrative expense

General and administrative expense

General and administrative expense

General and administrative expense

Performance shares - conditions met

Performance shares - conditions met

Management and director options

Management and director options

Management and director options

Management and director options

Management and director options

Management and director options

Management and director options

Management and director options

Management and director options

Restricted share awards

Restricted share awards

Restricted share awards

Restricted share awards

Restricted share awards

Restricted share awards

Restricted share awards

Restricted share awards

Restricted share awards

Omnibus plan

Omnibus plan

Omnibus plan

Management

Management

Management

Director

Director

Director

Director

Employee [Member]

Employee [Member]

Employee [Member]

Employee [Member]

Previous Vesting on Five Anniversary Dates [Member]

Fully Vested on November 6th, 2013 [Member]

Forfeited on November 6, 2013 [Member]

Share-based Compensation Arrangement by Share-based Payment Award [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Number of shares authorized (in shares)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

21,627,906

Number of shares available for future issuance (in shares)

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

10,255,525

10,613,975

'

Share compensation expenses

$2,246,000

$1,716,000

$4,498,000

$3,468,000

'

'

$2,200,000

$1,700,000

$4,500,000

$3,500,000

'

'

$1,700,000

$1,500,000

$3,400,000

$2,800,000

'

'

'

'

'

$500,000

$200,000

$1,100,000

$700,000

'

'

'

'

'

'

'

'

Unamortized share compensation expense

20,700,000

'

20,700,000

'

23,800,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Unamortized share compensation expense, period of recognition

'

'

'1 year 9 months 18 days

'

'2 years

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Service condition met on each of first five anniversary dates following grant date

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

20.00%

'

20.00%

60.00%

40.00%

'

'

'

'

'

'

'

'

'

'

'

'

Award vesting period

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'5 years

'5 years

'

'

'

'

'

'3 years

'

'2 years

'

'

'

'

'

'

'

Options outstanding had met the performance condition (in shares)

'

'

'

'

'

'

'

'

'

'

2,357,633

8,572,594

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Options outstanding (in shares)

11,329,911

'

11,329,911

'

10,981,075

10,956,838

'

'

'

'

'

'

11,329,911

'

11,329,911

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Fair value assumptions

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Estimated share price (in dollars per share)

$15.05

$10.89

$15.05

$10.89

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Volatility assumption

'

'

23.10%

22.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Risk free interest rate

'

'

2.20%

1.20%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Expected life

'

'

'6 years 6 months

'6 years 6 months

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Dividend yield

'

'

0.00%

0.00%

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Remaining contractual life

'

'

'7 years 7 months 6 days

'8 years 1 month 6 days

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Aggregate intrinsic value of options outstanding

34,500,000

'

34,500,000

'

61,500,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Aggregate intrinsic value of options exercisable

$12,300,000

'

$12,300,000

'

$17,600,000

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Restricted shares issued

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

'

6,489

0

9,614

5,000

'

'

'

Sharebased_compensation_Schedu

Share-based compensation - Schedule of management and director options activity (Details) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
In Thousands, except Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'
Share compensation expenses	$2,246	$1,716	$4,498	$3,468	'
Number of options (in shares)	'	'	'	'	'
Outstanding (in shares)	'	'	10,981,075	10,956,838	10,956,838
Forfeited (in shares)	'	'	0	'	-324,599
Exercised (in shares)	'	'	0	'	0
Outstanding (in shares)	11,329,911	'	11,329,911	'	10,981,075
Weighted average exercise price (in dollars per share)	'	'	'	'	'
Outstanding (in dollars per share)	'	'	$13.23	$13.20	$13.20
Forfeited (in dollars per share)	'	'	$0	'	$13.20
Exercised (in dollars per share)	'	'	$0	'	$0
Outstanding (in dollars per share)	$13.38	'	$13.38	'	$13.23
Management	'	'	'	'	'
Number of options (in shares)	'	'	'	'	'
Granted (in shares)	'	'	348,836	'	348,836
Weighted average exercise price (in dollars per share)	'	'	'	'	'
Granted (in dollars per share)	'	'	$18.25	'	$14.09
Director	'	'	'	'	'
Number of options (in shares)	'	'	'	'	'
Granted (in shares)	'	'	0	'	0
Weighted average exercise price (in dollars per share)	'	'	'	'	'
Granted (in dollars per share)	'	'	$0	'	$0
Management and director options	'	'	'	'	'
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]	'	'	'	'	'
Share compensation expenses	$1,700	$1,500	$3,400	$2,800	'
Number of options (in shares)	'	'	'	'	'
Outstanding (in shares)	11,329,911	'	11,329,911	'	'
Weighted average exercise price (in dollars per share)	'	'	'	'	'
Outstanding (in dollars per share)	$13.38	'	$13.38	'	'

Sharebased_compensation_Schedu1

Share-based compensation - Schedule of management and director options outstanding (Details) (USD $)	6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013	Dec. 31, 2012
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]	'	'	'	'
Options outstanding (in shares)	11,329,911	'	10,981,075	10,956,838
Options outstanding, weighted average exercise price (in dollars per share)	$13.38	'	$13.23	$13.20
Remaining contractual life	'7 years 7 months 6 days	'8 years 1 month 6 days	'	'
Management and director options	'	'	'	'
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]	'	'	'	'
Options outstanding (in shares)	11,329,911	'	'	'
Options outstanding, weighted average exercise price (in dollars per share)	$13.38	'	'	'
Options exercisable (in shares)	3,911,311	'	'	'
Options exercisable, weighted average exercise price (in dollars per share)	$13.22	'	'	'
Management and director options | $10.00-$10.89	'	'	'	'
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]	'	'	'	'
Exercise price, lower limit (in dollars per share)	$10	'	'	'
Exercise price, upper limit (in dollars per share)	$10.89	'	'	'
Options outstanding (in shares)	6,588,647	'	'	'
Options outstanding, weighted average exercise price (in dollars per share)	$10.03	'	'	'
Options exercisable (in shares)	2,346,787	'	'	'
Options exercisable, weighted average exercise price (in dollars per share)	$10.02	'	'	'
Management and director options | $15.05-$16.89	'	'	'	'
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]	'	'	'	'
Exercise price, lower limit (in dollars per share)	$15.05	'	'	'
Exercise price, upper limit (in dollars per share)	$16.89	'	'	'
Options outstanding (in shares)	2,405,516	'	'	'
Options outstanding, weighted average exercise price (in dollars per share)	$15.94	'	'	'
Options exercisable (in shares)	782,262	'	'	'
Options exercisable, weighted average exercise price (in dollars per share)	$16.02	'	'	'
Management and director options | $20.00-$25.05	'	'	'	'
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]	'	'	'	'
Exercise price, lower limit (in dollars per share)	$20	'	'	'
Exercise price, upper limit (in dollars per share)	$25.05	'	'	'
Options outstanding (in shares)	2,335,748	'	'	'
Options outstanding, weighted average exercise price (in dollars per share)	$20.21	'	'	'
Options exercisable (in shares)	782,262	'	'	'
Options exercisable, weighted average exercise price (in dollars per share)	$20.02	'	'	'

Sharebased_compensation_Schedu2

Share-based compensation - Schedule of restricted share award activity (Details) (Restricted share awards, USD $)	6 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Restricted share awards	'	'
Number of non-vested restricted shares (in shares)	'	'
Outstanding (in shares)	657,156	619,300
Granted (in shares)	9,614	37,856
Forfeited (in shares)	0	0
Vested (in shares)	0	0
Outstanding (in shares)	666,770	657,156
Weighted average grant data fair value (in dollars per share)	'	'
Outstanding (in dollars per share)	$10.25	$10
Granted (in dollars per share)	$15.29	$15.22
Forfeited (in dollars per share)	$0	$0
Vested (in dollars per share)	$0	$0
Outstanding (in dollars per share)	$10.37	$10.25

Noncontrolling_interests_Sched

Non-controlling interests - Schedule of Noncontrolling Interest (Details) (USD $)	Jun. 30, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Noncontrolling Interest [Line Items]	'	'
Non-controlling interests	$75,908	$118,735
Catastrophe Fund	'	'
Noncontrolling Interest [Line Items]	'	'
Non-controlling interests	56,024	49,254
Catastrophe Fund Manager	'	'
Noncontrolling Interest [Line Items]	'	'
Non-controlling interests	-326	-236
Joint Venture - Third Point Advisors LLC share	'	'
Noncontrolling Interest [Line Items]	'	'
Non-controlling Interests	$20,210	$69,717

Noncontrolling_interests_Incom

Non-controlling interests - Income Attributable to Non-controlling Interests (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Noncontrolling Interest [Line Items]	'	'	'	'
Income (loss) attributable to non-controlling interests	$1,007	$301	$2,023	$1,384
Catastrophe Fund	'	'	'	'
Noncontrolling Interest [Line Items]	'	'	'	'
Income (loss) attributable to non-controlling interests	369	178	619	757
Catastrophe Fund Manager	'	'	'	'
Noncontrolling Interest [Line Items]	'	'	'	'
Income (loss) attributable to non-controlling interests	-31	-98	-90	-162
Joint Venture - Third Point Advisors LLC share	'	'	'	'
Noncontrolling Interest [Line Items]	'	'	'	'
Income (loss) attributable to non-controlling interests	$669	$221	$1,494	$789

Noncontrolling_interests_Narra

Non-controlling interests - Narrative (Details) (USD $)	Jun. 15, 2012	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2013
		Third Point Reinsurance Opportunities Fund Ltd	Third Point Reinsurance Opportunities Fund Ltd	Hiscox	Joint Venture - Third Point Advisors LLC share	Joint Venture - Third Point Advisors LLC share
				Catastrophe Fund Manager
Noncontrolling Interest [Line Items]	'	'	'	'	'	'
Estimated fair value of investment	'	$55,400,000	$54,800,000	'	'	'
Ownership percentage	'	49.90%	53.00%	'	'	'
Ownership percentage	85.00%	'	'	15.00%	'	'
Ownership percentage of nonparticipating shares	'	100.00%	'	'	'	'
Ownership percentage of participating shares	'	100.00%	'	'	'	'
Distributions	'	'	'	'	$51,000,000	$35,100,000

Earnings_per_share_Details

Earnings per share (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, except Share data, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Weighted-average number of common shares outstanding:	'	'	'	'
Basic number of common shares outstanding (in shares)	103,264,616	78,432,132	103,264,616	78,432,132
Dilutive effect of options (in shares)	1,490,091	22,216	1,520,726	0
Dilutive effect of warrants (in shares)	1,679,174	799,920	1,720,373	715,840
Diluted number of common shares outstanding (in shares)	106,433,881	79,254,268	106,505,715	79,147,972
Basic net income per common share:	'	'	'	'
Net income	$31,292	$26,223	$71,071	$100,653
Net income allocated to participating shares	-200	-206	-452	-790
Net income available to common shareholders	31,092	26,017	70,619	99,863
Basic net income (loss) per common share (in dollars per share)	$0.30	$0.33	$0.68	$1.27
Diluted net income per common share:	'	'	'	'
Net income	31,292	26,223	71,071	100,653
Income allocated to participating securities	-194	-204	-439	-783
Net income available to common shareholders	$31,098	$26,019	$70,632	$99,870
Diluted net income (loss) per common share (in dollars per share)	$0.29	$0.33	$0.66	$1.26
Options and Warrants [Member]	'	'	'	'
Diluted net income per common share:	'	'	'	'
Antidilutive securities excluded from computation of earnings per share	4,531,962	3,462,938	4,489,327	3,423,925

Related_party_transactions_Det

Related party transactions (Details) (USD $)

3 Months Ended

6 Months Ended

6 Months Ended

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Jun. 30, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Jun. 30, 2014

Dec. 31, 2013

Narragansett Bay Insurance Company

Narragansett Bay Insurance Company

Pine Brook Road Partners, LLC

Pine Brook Road Partners, LLC

Cayman Holdco

Cayman Holdco

Third Point Loan L.L.C

Third Point Loan L.L.C

Third Point Hellenic Recovery US Feeder Fund, L.P.

Third Point Hellenic Recovery US Feeder Fund, L.P.

Investments in Securities and Derivative Contract

Investments in Securities and Derivative Contract

Related Party Transaction [Line Items]

'

'

'

'

'

'

'

'

'

'

'

'

'

'

Gross premiums written

$145,508,000

$98,215,000

$233,095,000

$194,235,000

$3,500,000

$3,000,000

'

'

'

'

'

'

'

'

Ownership percentage

'

'

'

'

'

'

'

'

'

10.00%

'

'

'

'

Ownership percentage

'

'

'

'

'

'

12.00%

12.00%

10.70%

10.00%

'

'

2.00%

2.00%

Committed capital

'

'

'

'

'

'

'

'

'

'

'

'

11,400,000

'

Committed capital, amount called

'

'

'

'

'

'

'

'

'

'

'

'

50,000

'

Committed capital, amount distributed

'

'

'

'

'

'

'

'

'

'

'

'

400,000

'

Estimated fair value of investment

'

'

'

'

'

'

'

'

$66,500,000

$29,300,000

$72,600,000

$147,200,000

$5,800,000

$5,300,000

Financial_instruments_with_off2

Financial instruments with off-balance sheet risk or concentrations of credit risk (Details) (USD $)	6 Months Ended	12 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Guarantor Obligations [Line Items]	'	'
Asset	$22,516,000	$39,045,000
Liability	-10,528,000	-8,819,000
Written Credit Derivatives	'	'
Guarantor Obligations [Line Items]	'	'
Credit Derivative, Collateral	363,300,000	689,500,000
0-5 years	9,105,000	9,882,000
5 years or Greater Expiring Through 2047	6,931,000	550,000
Total Written Credit Default Swaps	16,036,000	10,432,000
Asset	1,221,000	1,157,000
Liability	-1,254,000	-348,000
Net Asset/(Liability)	-33,000	809,000
Written Credit Derivatives | Single name (0 - 250)	'	'
Guarantor Obligations [Line Items]	'	'
0-5 years	0	368,000
5 years or Greater Expiring Through 2047	4,555,000	0
Total Written Credit Default Swaps	4,555,000	368,000
Asset	0	0
Liability	-1,254,000	-104,000
Net Asset/(Liability)	-1,254,000	-104,000
Written Credit Derivatives | Single name (251-500)	'	'
Guarantor Obligations [Line Items]	'	'
0-5 years	9,105,000	9,514,000
5 years or Greater Expiring Through 2047	2,376,000	0
Total Written Credit Default Swaps	11,481,000	9,514,000
Asset	1,221,000	1,136,000
Liability	0	0
Net Asset/(Liability)	1,221,000	1,136,000
Written Credit Derivatives | Index (0-250)	'	'
Guarantor Obligations [Line Items]	'	'
0-5 years	0	0
5 years or Greater Expiring Through 2047	0	550,000
Total Written Credit Default Swaps	0	550,000
Asset	0	21,000
Liability	0	-244,000
Net Asset/(Liability)	0	-223,000
Credit risk exposure	'	'
Guarantor Obligations [Line Items]	'	'
Concentration Risk, Credit Risk, Financial Instrument, Maximum Exposure	7,800,000	19,000,000
Estimate of Fair Value Measurement [Member] | Written Credit Derivatives	'	'
Guarantor Obligations [Line Items]	'	'
Credit Derivative, Collateral	$1,600,000	$2,600,000

Commitments_and_Contingencies_1

Commitments and Contingencies - Letters of credit (Details) (Letter of Credit, USD $)	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2014	Jun. 30, 2014	Jun. 30, 2014	Jul. 09, 2014
			Restricted cash and cash equivalents	Restricted cash and cash equivalents	BNP Paribas	Citibank	J.P. Morgan	Subsequent Event [Member]
								Citibank
Line of Credit Facility [Line Items]	'	'	'	'	'	'	'	'
Facility	$300,000,000	'	'	'	$100,000,000	$150,000,000	$50,000,000	$250,000,000
Notice period (Unused Facility Portion)	'	'	'	'	'60 days	'90 days	'60 days	'
Letters of credit outstanding	128,000,000	127,300,000	'	'	'	'	'	'
Letters of credit outstanding as percentage of total facility	42.70%	42.40%	'	'	'	'	'	'
Cash and cash equivalents pledged as security	'	'	$128,400,000	$100,600,000	'	'	'	'

Segment_reporting_Narrative_De

Segment reporting - Narrative (Details)	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenue, Major Customer [Line Items]	'	'	'	'
Number of operating segments	'	'	2	'
Number of contracts	3	5	2	'
Gross Premiums Written	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
Contract One | Contract Concentration Risk | Gross Premiums Written	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'
Concentration risk, percentage	20.50%	22.70%	'	18.00%
Contract Two | Contract Concentration Risk | Gross Premiums Written	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'
Concentration risk, percentage	11.60%	17.00%	12.80%	18.00%
Contract Three | Contract Concentration Risk | Gross Premiums Written	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'
Concentration risk, percentage	10.00%	14.60%	'	11.50%
Contract Four | Contract Concentration Risk | Gross Premiums Written	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'
Concentration risk, percentage	'	14.10%	'	'
Contract Five | Contract Concentration Risk | Gross Premiums Written	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'
Concentration risk, percentage	'	14.00%	'	'

Segment_reporting_Operating_Se

Segment reporting - Operating Segments (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Segment Reporting Information [Line Items]	'	'	'	'
Gross premiums written	$145,508	$98,215	$233,095	$194,235
Gross premiums ceded	0	0	0	-9,975
Net premiums written	145,508	98,215	233,095	184,260
Change in net unearned premium reserves	-66,758	-35,928	-81,083	-88,432
Net premiums earned	78,750	62,287	152,012	95,828
Loss and loss adjustment expenses incurred, net	44,409	45,692	90,668	64,330
Acquisition costs, net	29,583	14,921	55,014	27,994
General and administrative expenses	9,549	7,217	19,574	14,225
Total expenses	83,541	67,830	165,256	106,549
Net investment income	40,485	32,826	90,520	114,187
Other expenses	-1,020	-759	-1,807	-1,429
Income tax expense	-2,375	0	-2,375	0
Income including non-controlling interests	32,299	26,524	73,094	102,037
Income attributable to non-controlling interests	-1,007	-301	-2,023	-1,384
Net income	31,292	26,223	71,071	100,653
Gross premiums as percentage of total gross premiums	100.00%	100.00%	100.00%	100.00%
Prospective Reinsurance Contract [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Gross premiums written	144,934	75,915	230,419	171,935
Gross premiums as percentage of total gross premiums	99.60%	77.30%	98.90%	88.50%
Retroactive Reinsurance Contract [Member]	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Gross premiums written	574	22,300	2,676	22,300
Gross premiums as percentage of total gross premiums	0.40%	22.70%	1.10%	11.50%
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	3,216	1,520	6,598	2,927
Total expenses	3,216	1,520	6,598	2,927
Net investment income	34,170	29,937	76,863	105,009
Other expenses	0	0	0	0
Income tax expense	-2,375	'	-2,375	'
Income including non-controlling interests	28,579	28,417	67,890	102,082
Income attributable to non-controlling interests	-669	-221	-1,494	-789
Net income	27,910	28,196	66,396	101,293
Property and Casualty Reinsurance	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Gross premiums written	140,422	94,644	222,564	187,515
Gross premiums as percentage of total gross premiums	96.50%	96.40%	95.50%	96.50%
Property and Casualty Reinsurance | Operating Segments	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Gross premiums written	140,422	94,644	222,564	187,515
Gross premiums ceded	0	0	0	-9,975
Net premiums written	140,422	94,644	222,564	177,540
Change in net unearned premium reserves	-62,934	-33,206	-72,775	-83,459
Net premiums earned	77,488	61,438	149,789	94,081
Loss and loss adjustment expenses incurred, net	44,409	45,304	90,668	63,942
Acquisition costs, net	29,507	14,821	54,906	27,811
General and administrative expenses	5,655	4,710	11,464	9,526
Total expenses	79,571	64,835	157,038	101,279
Net underwriting loss	-2,083	-3,397	-7,249	-7,198
Net investment income	6,282	2,530	13,595	8,056
Other expenses	-1,020	-759	-1,807	-1,429
Income tax expense	0	'	0	'
Income including non-controlling interests	3,179	-1,626	4,539	-571
Income attributable to non-controlling interests	0	0	0	0
Net income	3,179	-1,626	4,539	-571
Loss ratio	57.30%	73.70%	60.50%	68.00%
Acquisition cost ratio	38.10%	24.10%	36.70%	29.60%
Composite ratio	95.40%	97.80%	97.20%	97.60%
General and administrative expense ratio	7.30%	7.70%	7.70%	10.10%
Combined ratio	102.70%	105.50%	104.90%	107.70%
Catastrophe Risk Management	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Gross premiums written	5,086	3,571	10,531	6,720
Gross premiums as percentage of total gross premiums	3.50%	3.60%	4.50%	3.50%
Catastrophe Risk Management | Operating Segments	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Gross premiums written	5,086	3,571	10,531	6,720
Gross premiums ceded	0	0	0	0
Net premiums written	5,086	3,571	10,531	6,720
Change in net unearned premium reserves	-3,824	-2,722	-8,308	-4,973
Net premiums earned	1,262	849	2,223	1,747
Loss and loss adjustment expenses incurred, net	0	388	0	388
Acquisition costs, net	76	100	108	183
General and administrative expenses	678	987	1,512	1,772
Total expenses	754	1,475	1,620	2,343
Net investment income	33	359	62	1,122
Other expenses	0	0	0	0
Income tax expense	0	'	0	'
Income including non-controlling interests	541	-267	665	526
Income attributable to non-controlling interests	-338	-80	-529	-595
Net income	203	-347	136	-69
Property | Property and Casualty Reinsurance	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Gross premiums written	74,505	27,888	81,386	28,238
Gross premiums as percentage of total gross premiums	51.20%	28.40%	34.90%	14.50%
Casualty | Property and Casualty Reinsurance	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Gross premiums written	65,343	49,388	115,766	101,595
Gross premiums as percentage of total gross premiums	44.90%	50.30%	49.70%	52.30%
Specialty | Property and Casualty Reinsurance	'	'	'	'
Segment Reporting Information [Line Items]	'	'	'	'
Gross premiums written	$574	$17,368	$25,412	$57,682
Gross premiums as percentage of total gross premiums	0.40%	17.70%	10.90%	29.70%

Segment_reporting_Customer_Con

Segment reporting - Customer Concentration (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenue, Major Customer [Line Items]	'	'	'	'
Gross premiums written	$145,508	$98,215	$233,095	$194,235
Gross Premiums Written	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'
Gross premiums written	145,508	98,215	233,095	194,235
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	'	'	233,095	194,235
Concentration risk, percentage	'	'	100.00%	100.00%
Gross Premiums Written | Customer Concentration Risk | Willis Re [Member]	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'
Gross premiums written	'	'	57,047	13,421
Concentration risk, percentage	'	'	24.50%	6.90%
Gross Premiums Written | Customer Concentration Risk | Advocate Reinsurance Partners, LLC	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'
Gross premiums written	'	'	53,004	27,647
Concentration risk, percentage	'	'	22.70%	14.20%
Gross Premiums Written | Customer Concentration Risk | Stonehill Reinsurance Partners, LLC [Member]	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'
Gross premiums written	'	'	46,659	0
Concentration risk, percentage	'	'	20.00%	0.00%
Gross Premiums Written | Customer Concentration Risk | Aon Benfield - a division of Aon plc	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'
Gross premiums written	'	'	16,793	81,357
Concentration risk, percentage	'	'	7.20%	41.90%
Gross Premiums Written | Customer Concentration Risk | TigerRisk Partners LLC [Member]	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'
Gross premiums written	'	'	14,496	9,531
Concentration risk, percentage	'	'	6.20%	4.90%
Gross Premiums Written | Customer Concentration Risk | Guy Carpenter & Company, LLC	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'
Gross premiums written	'	'	15,074	-11,057
Concentration risk, percentage	'	'	6.50%	-5.70%
Gross Premiums Written | Customer Concentration Risk | BMS Intermediaries	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'
Gross premiums written	'	'	0	10,019
Concentration risk, percentage	'	'	0.00%	5.20%
Gross Premiums Written | Customer Concentration Risk | Other brokers	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'
Gross premiums written	'	'	2,984	7,097
Concentration risk, percentage	'	'	1.30%	3.70%
Gross Premiums Written | Customer Concentration Risk | Total broker placed	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'
Gross premiums written	'	'	206,057	138,015
Concentration risk, percentage	'	'	88.40%	71.10%
Gross Premiums Written | Customer Concentration Risk | Direct placements	'	'	'	'
Revenue, Major Customer [Line Items]	'	'	'	'
Gross premiums written	'	'	$27,038	$56,220
Concentration risk, percentage	'	'	11.60%	28.90%

Segment_reporting_Geographic_i

Segment reporting - Geographic information (Details) (USD $)	3 Months Ended		6 Months Ended
In Thousands, unless otherwise specified	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Revenue from External Customer [Line Items]	'	'	'	'
Gross premiums written	$145,508	$98,215	$233,095	$194,235
Gross Premiums Written	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Gross premiums written	145,508	98,215	233,095	194,235
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	144,657	93,992	202,734	143,650
Concentration risk, percentage	99.40%	95.70%	87.00%	74.00%
Gross Premiums Written | United Kingdom	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Gross premiums written	575	0	25,413	0
Concentration risk, percentage	0.40%	0.00%	10.90%	0.00%
Gross Premiums Written | Bermuda	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Gross premiums written	276	4,223	4,948	49,185
Concentration risk, percentage	0.20%	4.30%	2.10%	25.30%
Gross Premiums Written | Other	'	'	'	'
Revenue from External Customer [Line Items]	'	'	'	'
Gross premiums written	$0	$0	$0	$1,400
Concentration risk, percentage	0.00%	0.00%	0.00%	0.70%