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Due from/to brokers (Details) (USD $) In Millions, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Due to and from Broker-Dealers and Clearing Organizations [Abstract]
Due to brokers	$ 14.4	$ 268.5

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- Definition

Payables to Broker-Dealers and Clearing Organizations, Net

+ References

No definition available.

+ Details

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

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- Details

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