00100 - Statement - Consolidated Balance Sheets
link:presentationLink
link:calculationLink
link:definitionLink
00200 - Statement - Consolidated Statements of (Loss) Income
link:presentationLink
link:calculationLink
link:definitionLink
00300 - Statement - Consolidated Statements of Comprehensive (Loss) Income
link:presentationLink
link:calculationLink
link:definitionLink
00500 - Statement - Consolidated Statements of Cash Flows
link:presentationLink
link:calculationLink
link:definitionLink
40401 - Disclosure - Segment information (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40401 - Disclosure - Segment information (Details) Calc 2
link:presentationLink
link:calculationLink
link:definitionLink
40501 - Disclosure - Reserves for unpaid losses and loss adjustment expenses (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40701 - Disclosure - Investment securities - Net investment income (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40702 - Disclosure - Investment securities - Net realized and unrealized investment (losses) gains (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40703 - Disclosure - Investment securities - Fixed maturity investments (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40801 - Disclosure - Fair value measurements - Fair value measurements by level (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40901 - Disclosure - Debt and standby letters of credit facilities (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41202 - Disclosure - Common shareholder's equity, mezzanine equity, and non-controlling interests - Additional paid-in surplus (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41301 - Disclosure - Earnings per share (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41601 - Disclosure - Variable interest entities (Details)
link:presentationLink
link:calculationLink
link:definitionLink
00090 - Document - Document and Entity Information
link:presentationLink
link:calculationLink
link:definitionLink
00105 - Statement - Consolidated Balance Sheets (Parenthetical)
link:presentationLink
link:calculationLink
link:definitionLink
00400 - Statement - Consolidated Statements of Shareholder's Equity
link:presentationLink
link:calculationLink
link:definitionLink
30703 - Disclosure - Investment securities (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
40201 - Disclosure - Summary of significant accounting policies (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40301 - Disclosure - Significant transactions - Easterly Acquisition Corp. and WRM America Indemnity Company, Inc. (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40302 - Disclosure - Significant transactions - Acquisition of IMG and Armada (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40402 - Disclosure - Segment information - Net premiums written by client location and underwriting location by reportable segment (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40502 - Disclosure - Reserves for unpaid losses and loss adjustment expenses - By segment (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40704 - Disclosure - Investment securities - Mortgage-backed and asset-backed securities (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40705 - Disclosure - Investment securities - Equity securities and Other long-term investments (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40706 - Disclosure - Investment securities - Hedge Funds and Private Equity Funds (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40707 - Disclosure - Investment securities - Hedge Funds redemption frequency and Private Equity Fund lock-up period (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40708 - Disclosure - Investment securities - Investments held on deposit or as collateral and Unsettled investment purchases and sales (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40802 - Disclosure - Fair value measurements - Rollforward of Level 3 fair value measurements (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40804 - Disclosure - Fair value measurements - Significant unobservable inputs (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40805 - Disclosure - Fair value measurements - Financial instruments disclosed, but not carried at fair value (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40902 - Disclosure - Debt and standby letters of credit facilities - 2017 SEK Subordinated Notes and 2016 SIG Senior Notes (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40903 - Disclosure - Debt and standby letters of credit facilities - Standby letter of credit facilities (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40904 - Disclosure - Debt and standby letters of credit facilities - Revolving credit facility and Interest (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41002 - Disclosure - Income taxes - Deferred tax asset, net of valuation allowance and Uncertain tax positions (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41101 - Disclosure - Derivatives - Interest Rate Cap (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41102 - Disclosure - Derivatives - Classification and Fair Value of Derivatives in Consolidated Balance Sheets (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41103 - Disclosure - Derivatives - Classification and Fair Value of Derivatives in Consolidated of (Loss) Income Statements (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41203 - Disclosure - Common shareholder's equity, mezzanine equity, and non-controlling interests - Mezzanine equity (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41204 - Disclosure - Common shareholder's equity, mezzanine equity, and non-controlling interests - Non-controlling interests (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41401 - Disclosure - Accumulated other comprehensive (loss) (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41501 - Disclosure - Investments in unconsolidated entities - Other long-term investments (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41502 - Disclosure - Investments in unconsolidated entities - Equity method unconsolidated entities (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41602 - Disclosure - Variable interest entities - Unconsolidated VIE (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41701 - Disclosure - Transactions with related parties (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41801 - Disclosure - Commitments and contingencies (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41901 - Disclosure - Subsequent events (Details)
link:presentationLink
link:calculationLink
link:definitionLink
10101 - Disclosure - General
link:presentationLink
link:calculationLink
link:definitionLink
10201 - Disclosure - Summary of significant accounting policies
link:presentationLink
link:calculationLink
link:definitionLink
10301 - Disclosure - Significant transactions
link:presentationLink
link:calculationLink
link:definitionLink
10401 - Disclosure - Segment information
link:presentationLink
link:calculationLink
link:definitionLink
10501 - Disclosure - Reserves for unpaid losses and loss adjustment expenses
link:presentationLink
link:calculationLink
link:definitionLink
10601 - Disclosure - Third party reinsurance
link:presentationLink
link:calculationLink
link:definitionLink
10701 - Disclosure - Investment securities
link:presentationLink
link:calculationLink
link:definitionLink
10801 - Disclosure - Fair value measurements
link:presentationLink
link:calculationLink
link:definitionLink
10901 - Disclosure - Debt and standby letters of credit facilities
link:presentationLink
link:calculationLink
link:definitionLink
11001 - Disclosure - Income taxes
link:presentationLink
link:calculationLink
link:definitionLink
11101 - Disclosure - Derivatives
link:presentationLink
link:calculationLink
link:definitionLink
11201 - Disclosure - Common shareholder's equity, mezzanine equity, and non-controlling interests
link:presentationLink
link:calculationLink
link:definitionLink
11301 - Disclosure - Earnings per share
link:presentationLink
link:calculationLink
link:definitionLink
11401 - Disclosure - Accumulated other comprehensive (loss)
link:presentationLink
link:calculationLink
link:definitionLink
11501 - Disclosure - Investments in unconsolidated entities
link:presentationLink
link:calculationLink
link:definitionLink
11601 - Disclosure - Variable interest entities
link:presentationLink
link:calculationLink
link:definitionLink
11701 - Disclosure - Transactions with related parties
link:presentationLink
link:calculationLink
link:definitionLink
11801 - Disclosure - Commitments and contingencies
link:presentationLink
link:calculationLink
link:definitionLink
11901 - Disclosure - Subsequent events
link:presentationLink
link:calculationLink
link:definitionLink
20202 - Disclosure - Summary of significant accounting policies (Policies)
link:presentationLink
link:calculationLink
link:definitionLink
30403 - Disclosure - Segment information (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
30503 - Disclosure - Reserves for unpaid losses and loss adjustment expenses (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
30803 - Disclosure - Fair value measurements (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
30903 - Disclosure - Debt and standby letters of credit facilities (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
31103 - Disclosure - Derivatives (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
31203 - Disclosure - Common shareholder's equity, mezzanine equity, and non-controlling interests (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
31303 - Disclosure - Earnings per share (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
31403 - Disclosure - Accumulated other comprehensive (loss) (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
31503 - Disclosure - Investments in unconsolidated entities (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
31603 - Disclosure - Variable interest entities (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
31901 - Disclosure - Subsequent events (Tables)
link:presentationLink
link:calculationLink
link:definitionLink
40601 - Disclosure - Third party reinsurance (Details)
link:presentationLink
link:calculationLink
link:definitionLink
40803 - Disclosure - Fair value measurements - Transfers between levels (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41001 - Disclosure - Income taxes (Details)
link:presentationLink
link:calculationLink
link:definitionLink
41201 - Disclosure - Common shareholder's equity, mezzanine equity, and non-controlling interests - Common shareholder (Details)
link:presentationLink
link:calculationLink
link:definitionLink