Goodwill and Other Intangible Assets Gross and Net Carrying Amounts of Identifiable Intangible Assets (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	$ 57,729	$ 58,494
Finite-Lived Intangible Assets, Accumulated Amortization	37,125	33,620
Finite-Lived Intangible Assets, Net	20,604	24,874
Advisory Contracts [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	51,063	51,525
Finite-Lived Intangible Assets, Accumulated Amortization	33,059	29,572
Finite-Lived Intangible Assets, Net	18,004	21,953
Employment Contracts [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	3,247	3,607
Finite-Lived Intangible Assets, Accumulated Amortization	3,247	3,505
Finite-Lived Intangible Assets, Net	0	102
Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	2,040	2,040
Finite-Lived Intangible Assets, Accumulated Amortization	0	0
Finite-Lived Intangible Assets, Net	2,040	2,040
Servicing Contracts [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross	1,379	1,322
Finite-Lived Intangible Assets, Accumulated Amortization	819	543
Finite-Lived Intangible Assets, Net	$ 560	$ 779