Due from/to brokers (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Due to and from Broker-Dealers and Clearing Organizations [Abstract]
Due to brokers	$ 303.2	$ 268.5

Payables to Broker-Dealers and Clearing Organizations, Net

No definition available.

Name:	tpre_PayablestoBrokerDealersandClearingOrganizationsNet
Namespace Prefix:	tpre_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant