Other Intangible Assets Level 4 Other Intangible Assets Rollforward (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011 Final valuation adjustments as required under ASC 805 for eReinsure [Member]	Dec. 31, 2011 Final valuation adjustments as required under ASC 805 for PBG [Member]	Dec. 31, 2011 Scenario, Actual [Member]	Dec. 31, 2011 Balance as originally reported at December 31, 2011 [Member]
Indefinite-lived Intangible Assets [Line Items]
Other Intangible Assets, Net							$ 54,410	$ 47,022
Finite-Lived Intangible Assets, Purchase Accounting Adjustments					4,508	2,880
Finite-lived Intangible Assets Acquired			168
Less: Amortization Expense	1,127	998	3,775	3,428
Other Intangible Assets, Net	$ 50,803		$ 50,803				$ 54,410	$ 47,022