Name:	us-gaap_ContractualObligation
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Amount paid to managing member or general partner, affiliate of managing member or general partner, or affiliate of limited liability company (LLC) or limited partnership (LP) for administrative services provided to the LLC or LP, for example, but not limited to, salaries, rent, or overhead costs.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Name:	us-gaap_PaymentForAdministrativeFees
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Cash outflow related to the acquisition or continued holding of limited partnership interests held for investment purposes.

No definition available.

Name:	us-gaap_PaymentsToAcquireLimitedPartnershipInterests
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

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.

No definition available.

Name:	us-gaap_RelatedPartyTransactionLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Related Parties Number Of Employees

No definition available.

Name:	vr_RelatedPartiesNumberOfEmployees
Namespace Prefix:	vr_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

Percentage of Assignor's interest assumed in Aquiline Financial Services Fund II LP

No definition available.

Name:	vr_RelatedPartyTransactionAssumptionOfInterestPercentage
Namespace Prefix:	vr_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

The amount of capital commitment in a limited partnership that is also a related party.

No definition available.

Name:	vr_RelatedPartyTransactionCapitalCommitment
Namespace Prefix:	vr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

This element represents the amount of ceded premiums written with related parties.

No definition available.

Name:	vr_RelatedPartyTransactionCededPremiumsWritten
Namespace Prefix:	vr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

This element represents the amount of gross premiums receivable from related parties.

No definition available.

Name:	vr_RelatedPartyTransactionGrossPremiumsReceivable
Namespace Prefix:	vr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

This element represents the amount of gross premiums written with related parties.

No definition available.

Name:	vr_RelatedPartyTransactionGrossPremiumsWritten
Namespace Prefix:	vr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

Investment management expenses recognized during the period resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party during the period.

No definition available.

Name:	vr_RelatedPartyTransactionInvestmentManagementExpenses
Namespace Prefix:	vr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Related party transaction loss reserves recoverable relting to Group Ark.

No definition available.

Name:	vr_RelatedPartyTransactionLossReservesRecoverable
Namespace Prefix:	vr_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

This element represents the amount of net premiums earned with related parties.

No definition available.

Name:	vr_RelatedPartyTransactionNetPremiumsEarned
Namespace Prefix:	vr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

This element represents the amount of Reinsurance balances payable to related parties

No definition available.

Name:	vr_RelatedPartyTransactionReinsuranceBalancesPayable
Namespace Prefix:	vr_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Shares held by related party in the Company.

No definition available.

Name:	vr_SharesOwnedByRelatedParty
Namespace Prefix:	vr_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=vr_AquilineCapitalPartnersLlcMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=vr_GroupArkInsuranceHoldingsLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=vr_ConningIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=vr_AquilineCapitalPartnersIiGpOffshoreLtdMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=vr_AquilineFinancialServicesFundIILPMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	us-gaap_ScheduleOfEquityMethodInvestmentEquityMethodInvesteeNameAxis=vr_AquilineFinancialServicesFundIIILPMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Name:	dei_LegalEntityAxis=vr_WesternWorldInsuranceGroupIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: