Other Intangible Assets Level 4 Other Intangible Assets, Carrying Values and Amortization Periods (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 46,999	$ 46,831
Accumulated Amortization	(17,811)	(14,036)
Net Carrying Amount	29,188	32,795
Customer and Agent Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	34,720	34,552
Accumulated Amortization	(11,458)	(8,724)
Net Carrying Amount	23,262	25,828
Software [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	8,773	8,773
Accumulated Amortization	(3,114)	(2,345)
Net Carrying Amount	5,659	6,428
Present Value of Future Profits [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	548	548
Accumulated Amortization	(548)	(548)
Net Carrying Amount	0	0
Noncompete Agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	2,958	2,958
Accumulated Amortization	(2,691)	(2,419)
Net Carrying Amount	$ 267	$ 539
Amortization Period (Years) [Member] | Customer and agent relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization period (Years)	5 years
Amortization Period (Years) [Member] | Software [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization period (Years)	7 years
Amortization Period (Years) [Member] | Present value of future profits [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization period (Years)	3 months 18 days
Amortization Period (Years) [Member] | Noncompete Agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization period (Years)	1 year 6 months
Amortization Period (Years) [Member] | Customer and agent relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization period (Years)	15 years
Amortization Period (Years) [Member] | Software [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization period (Years)	10 years
Amortization Period (Years) [Member] | Present value of future profits [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization period (Years)	9 months
Amortization Period (Years) [Member] | Noncompete Agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Amortization period (Years)	6 years