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v2.4.1.9

Restricted cash and cash equivalents (Details) (USD $) In Thousands, unless otherwise specified | Sep. 30, 2014 | Dec. 31, 2013 | Dec. 31, 2012
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Restricted Cash and Cash Equivalents Items [Line Items] |  |  |
Restricted cash and cash equivalents | $ 261,966 us-gaap_RestrictedCashAndCashEquivalents | $ 193,577 us-gaap_RestrictedCashAndCashEquivalents | $ 77,627 us-gaap_RestrictedCashAndCashEquivalents
Restricted cash securing collateralized reinsurance contracts written by the Catastrophe Reinsurer |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |
Restricted cash and cash equivalents | 101,348 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis = tpre_CollateralizedReinsuranceContractsMember | 93,014 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis = tpre_CollateralizedReinsuranceContractsMember | 12,844 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis = tpre_CollateralizedReinsuranceContractsMember
Restricted cash securing credit facilities |  |  |
Restricted Cash and Cash Equivalents Items [Line Items] |  |  |
Restricted cash and cash equivalents | $ 160,618 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis = tpre_CreditFacilitiesMember | $ 100,563 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis = tpre_CreditFacilitiesMember | $ 64,783 us-gaap_RestrictedCashAndCashEquivalents / us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis = tpre_CreditFacilitiesMember

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- Definition The carrying amounts of cash and cash equivalent items which are restricted as to withdrawal or usage. Restrictions may include legally restricted deposits held as compensating balances against borrowing arrangements, contracts entered into with others, or entity statements of intention with regard to particular deposits; however, time deposits and short-term certificates of deposit are not generally included in legally restricted deposits. Excludes compensating balance arrangements that are not agreements which legally restrict the use of cash amounts shown on the balance sheet. This element is for unclassified presentations; for classified presentations there is a separate and distinct element. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 1 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.1) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_RestrictedCashAndCashEquivalents
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Details
Name: | us-gaap_RestrictedCashAndCashEquivalentsItemsLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis=tpre_CollateralizedReinsuranceContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | us-gaap_RestrictedCashAndCashEquivalentsCashAndCashEquivalentsAxis=tpre_CreditFacilitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |