XML 53 R41.htm IDEA: XBRL DOCUMENT
v3.20.2

Investments (Schedule of Fair Value of Equity Investments Trading) (Details) - USD ($) $ in Thousands | Jun. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Debt and Equity Securities, FV-NI [Line Items] |  |
Equity investments trading | $ 470,087 | $ 436,931
Financials |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Equity investments trading | 228,710 | 248,189
Communications and technology |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Equity investments trading | 114,650 | 79,206
Consumer |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Equity investments trading | 44,057 | 35,987
Industrial, utilities and energy |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Equity investments trading | 38,625 | 38,583
Healthcare |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Equity investments trading | 37,449 | 29,510
Basic materials |  |
Debt and Equity Securities, FV-NI [Line Items] |  |
Equity investments trading | $ 6,596 | $ 5,456

X
- Definition Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 45 -Paragraph 1A -URI http://asc.fasb.org/extlink&oid=99377092&loc=SL75136599-209740 + Details
Name: | us-gaap_EquitySecuritiesFvNi
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ScheduleOfTradingSecuritiesAndOtherTradingAssetsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_EquitySecuritiesByIndustryAxis=us-gaap_FinancialServicesSectorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_EquitySecuritiesByIndustryAxis=us-gaap_TechnologySectorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_EquitySecuritiesByIndustryAxis=rnr_ConsumerSectorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_EquitySecuritiesByIndustryAxis=us-gaap_CommercialAndIndustrialSectorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_EquitySecuritiesByIndustryAxis=us-gaap_HealthcareSectorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_EquitySecuritiesByIndustryAxis=rnr_BasicMaterialsSectorMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |