XML 77 R69.htm IDEA: XBRL DOCUMENT
v3.19.3

Debt and Credit Facilities (Credit Facilities) (Details) - Letter of Credit | Jun. 21, 2019 USD ($) | Mar. 22, 2019 USD ($) | Mar. 07, 2019 USD ($) | Nov. 23, 2015 USD ($)
--- | --- | --- | --- | ---
Credit Suisse (Switzerland) Ltd. |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Maximum borrowing capacity |  | $ 125,000,000 |  |
Ratio of indebtedness to net capital |  | 0.35 |  |
Minimum net worth required for compliance |  | $ 3,000,000,000.0 |  |
Wells Fargo |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Maximum borrowing capacity | $ 25,000,000 |  |  |
Bank Of Montreal, CEP and ING Bank N.V., London Branch |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Maximum borrowing capacity |  |  | $ 255,000,000.0 | $ 180,000,000.0

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_LineOfCreditFacilityLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + 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 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The lowest amount of net worth (total assets minus total liabilities) required by secondary market investors or state-imposed regulatory mandates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47304-110998 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 948 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c)(a) -URI http://asc.fasb.org/extlink&oid=6490092&loc=d3e47080-110998 + Details
Name: | us-gaap_MinimumNetWorthRequiredForCompliance
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Indebtedness divided by net capital. + References No definition available. + Details
Name: | us-gaap_RatioOfIndebtednessToNetCapital1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_LineOfCreditFacilityAxis=rnr_CreditSuisseSwitzerlandLtd.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LineOfCreditFacilityAxis=rnr_WellsFargoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LineOfCreditFacilityAxis=rnr_BankOfMontrealCEPAndINGBankN.V.LondonBranchMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |