Reinsurance Receivables Level 4 Premiums, Direct and Assumed, Ceded (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Reinsurance Disclosures [Abstract]
Direct and Assumed, Premiums Written	$ 100,409	$ 94,432	$ 272,317	$ 241,979
Direct and Assume Premiums Earned	98,287	80,982	269,132	235,420
Ceded Premiums Written	(65,935)	(61,361)	(169,971)	(154,227)
Ceded Premiums Earned	(64,394)	(52,309)	(171,362)	(150,774)
Premiums Written, Net	34,474	33,071	102,346	87,752
Net earned premium	$ 33,893	$ 28,673	$ 97,770	$ 84,646