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v3.19.1

Fair Value Measurements (Narrative) (Details) £ in Thousands | 3 Months Ended |  |  |
--- | --- | --- | --- | ---
Mar. 31, 2019 USD ($) | Mar. 31, 2018 USD ($) | Mar. 31, 2019 GBP (£) | Dec. 31, 2018 USD ($) | Jun. 30, 2015 USD ($)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Other investments | $ 878,373,000 |  |  | $ 784,933,000 |
Other assets | 47,596,000 |  |  | 4,968,000 |
Other liabilities | 35,769,000 |  |  | 13,327,000 |
Debt | 1,191,499,000 |  |  | 991,127,000 |
Credit facilities outstanding | 1,392,993,000 |  | £ 0 |  |
Long-term debt, fair value | 1,193,977,000 |  |  | 974,714,000 |
Net unrealized gains (losses) recognized in earnings | 2,969,000 | $ 1,465,000 |  |  |
Net investment income | Other investments |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Net unrealized gains (losses) recognized in earnings | 3,000,000.0 | 1,500,000 |  |  |
Other income (loss) | Other assets and (liabilities) |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Net unrealized gains (losses) recognized in earnings | 0 | $ 0 |  |  |
Fair Value, Measurements, Recurring |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Other investments | 878,373,000 |  |  | 784,933,000 |
Other assets | 17,644,000 |  |  | 4,040,000 |
Fair Value, Measurements, Recurring | Private equity investments |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Other investments | 253,566,000 |  |  | 242,647,000 |
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Other investments | 63,695,000 |  |  | 54,545,000 |
Other assets | 11,827,000 |  |  |  |
Other liabilities |  |  |  | 8,359,000 |
Significant Unobservable Inputs (Level 3) | Fair Value, Measurements, Recurring | Private equity investments |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Other investments | 63,695,000 |  |  | $ 54,545,000 |
Significant Unobservable Inputs (Level 3) | External valuation model | Fair Value, Measurements, Recurring | Private equity investments |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Other investments | 10,174,000 |  |  |  |
Significant Unobservable Inputs (Level 3) | Internal valuation model | Fair Value, Measurements, Recurring | Private equity investments |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Other investments | 53,521,000 |  |  |  |
Significant Unobservable Inputs (Level 3) | Internal valuation model | Fair Value, Measurements, Recurring | Assumed reinsurance contract |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Other assets | 500,000 |  |  |  |
Other liabilities | 8,356,000 |  |  |  |
Significant Unobservable Inputs (Level 3) | Internal valuation model | Fair Value, Measurements, Recurring | Assumed and ceded (re)insurance contract |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Other assets | 19,660,000 |  |  |  |
Fair Value Measured at Net Asset Value Per Share |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Investment fair value | $ 258,298,000 |  |  |  |
U.S. treasuries |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Weighted average effective yield | 2.30% |  | 2.30% | 2.50% |
Agencies |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Weighted average effective yield | 2.80% |  | 2.80% | 3.00% |
Municipal |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Weighted average effective yield | 3.40% |  | 3.40% | 4.80% |
Non-U.S. government |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Weighted average effective yield | 1.60% |  | 1.60% | 2.70% |
Non-U.S. government-backed corporate |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Weighted average effective yield | 2.10% |  | 2.10% | 2.80% |
Corporate |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Weighted average effective yield | 3.60% |  | 3.60% | 4.90% |
Agency mortgage-backed |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Weighted average effective yield | 3.10% |  | 3.10% | 3.50% |
Weighted average life | 5 years 10 months 24 days | 7 years 1 month 6 days |  |  |
Non-agency prime residential mortgage-backed |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Weighted average effective yield | 4.20% |  | 4.20% | 4.40% |
Weighted average life | 5 years 3 months 18 days | 4 years 8 months 12 days |  |  |
Alt-A non-agency mortgage-backed |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Weighted average effective yield | 4.20% |  | 4.20% | 4.70% |
Weighted average life | 6 years 9 months 18 days | 6 years 3 months 18 days |  |  |
Commercial mortgage-backed |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Weighted average effective yield | 3.20% |  | 3.20% | 3.60% |
Weighted average life | 4 years 7 months 6 days | 5 years |  |  |
Asset-backed |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Weighted average effective yield | 3.80% |  | 3.80% | 4.30% |
Weighted average life | 3 years 2 months 12 days | 3 years 2 months 12 days |  |  |
Short term investments |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Weighted average effective yield | 2.10% |  | 2.10% | 2.10% |
Private equity investments | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Liquidation period for fund assets | 7 years |  |  |  |
Private equity investments | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Liquidation period for fund assets | 10 years |  |  |  |
Private equity investments | Fair Value Measured at Net Asset Value Per Share |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Investment fair value | $ 189,871,000 |  |  |  |
Senior secured bank loan funds |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Investment in closed end fund | $ 15,700,000 |  |  |  |
Senior secured bank loan funds | Minimum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Liquidation period for fund assets | 4 years |  |  |  |
Senior secured bank loan funds | Maximum |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Liquidation period for fund assets | 5 years |  |  |  |
Senior secured bank loan funds | Fair Value Measured at Net Asset Value Per Share |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Investment fair value | $ 15,674,000 |  |  |  |
Hedge funds | Fair Value Measured at Net Asset Value Per Share |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Investment fair value | 11,585,000 |  |  |  |
Miscellaneous other investments |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Investment fair value | 41,168,000 |  |  |  | $ 41,168,000
RenaissanceRe Revolving Credit Facility | Line of Credit |  |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |  |
Credit facilities outstanding | $ 200,000,000 |  |  |  |

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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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