Subsequent events (Details) (Catastrophe Fund Manager [Member], Subsequent event)	Nov. 04, 2013
Catastrophe Fund Manager [Member] \| Subsequent event
Subsequent Event [Line Items]
Percent of voting non-participating common shares transfered from reisurer to fund	100.00%

Percent of Voting Non-Participating Common Shares Transfered from Reinsurer to Fund

No definition available.

Name:	tpre_PercentofVotingNonParticipatingCommonSharesTransferedfromReinsurertoFund
Namespace Prefix:	tpre_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant