Schedule III - Supplementary Insurance Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
Dec. 31, 2011	Dec. 31, 2013	Dec. 31, 2012
Supplementary Insurance Information, by Segment [Line Items]
Deferred acquisition costs, net	$ 0	$ 91,193	$ 45,383
Loss and loss adjustment expense reserves	0	134,331	67,271
Unearned premium	0	265,187	93,893
Net premiums earned	0	220,667	96,481
Net investment income	0	253,203	136,422
Loss and loss adjustment expenses incurred, net	0	139,812	80,306
Amortization of deferred acquisition costs, net	0	67,944	24,604
Other operating expenses	1,130	33,036	27,376
Net premiums written	0	391,962	190,374
Property and Casualty Reinsurance
Supplementary Insurance Information, by Segment [Line Items]
Deferred acquisition costs, net	0	91,141	45,383
Loss and loss adjustment expense reserves	0	134,221	67,271
Unearned premium	0	264,898	93,893
Net premiums earned	0	212,607	96,481
Net investment income	0	0	0
Loss and loss adjustment expenses incurred, net	0	139,616	80,306
Amortization of deferred acquisition costs, net	0	66,981	24,604
Other operating expenses	0	21,838	20,290
Net premiums written	0	383,613	190,374
Catastrophe Risk Management
Supplementary Insurance Information, by Segment [Line Items]
Deferred acquisition costs, net	0	52	0
Loss and loss adjustment expense reserves	0	110	0
Unearned premium	0	289	0
Net premiums earned	0	8,060	0
Net investment income	0	4,421	0
Loss and loss adjustment expenses incurred, net	0	196	0
Amortization of deferred acquisition costs, net	0	963	0
Other operating expenses	0	3,852	1,534
Net premiums written	0	8,349	0
Corporate
Supplementary Insurance Information, by Segment [Line Items]
Deferred acquisition costs, net	0	0	0
Loss and loss adjustment expense reserves	0	0	0
Unearned premium	0	0	0
Net premiums earned	0	0	0
Net investment income	0	248,782	136,422
Loss and loss adjustment expenses incurred, net	0	0	0
Amortization of deferred acquisition costs, net	0	0	0
Other operating expenses	1,130	7,346	5,552
Net premiums written	$ 0	$ 0	$ 0

Amount of amortization of deferred policy acquisition costs recognized.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 16

-Article 12

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 235

-Section S99

-Paragraph 1

-Subparagraph (SX 210.12-16)

-URI http://asc.fasb.org/extlink&oid=6588446&loc=d3e574960-122915

+ Details

Name:	us-gaap_SupplementaryInsuranceInformationAmortizationOfDeferredPolicyAcquisitionCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of insurance benefits, claims, losses and settlement expenses incurred.

+ References

+ Details

Name:	us-gaap_SupplementaryInsuranceInformationBenefitsClaimsLossesAndSettlementExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Details

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

- Definition

Net amount of deferred policy acquisition costs capitalized on contracts remaining in force on the balance sheet date.

+ References

+ Details

Name:	us-gaap_SupplementaryInsuranceInformationDeferredPolicyAcquisitionCosts
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of reserves for future policy claims payable and loss expenses to be incurred.

+ References

+ Details

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

- Definition

Amount of net investment income earned.

+ References

+ Details

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

- Definition

Amount of other operating expense incurred.

+ References

+ Details

Name:	us-gaap_SupplementaryInsuranceInformationOtherOperatingExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Amount of premium revenue earned.

+ References

+ Details

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

- Definition

Amount of actual written premiums, including, as applicable, premiums from reinsurance assumed and net of premiums on reinsurance ceded.

+ References

+ Details

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

- Definition

Amount of premiums not yet earned.

+ References

+ Details

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

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=tpre_CatastropheRiskManagementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=us-gaap_CorporateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_StatementBusinessSegmentsAxis=us-gaap_PropertyLiabilityAndCasualtyInsuranceSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: