Goodwill and Other Intangibles (Narrative) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Finite-Lived Intangible Assets [Line Items]
Amortization of intangibles	$ 728	$ 951	$ 1,091
Advisory Contracts [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset useful life (in years)	20 years
Noncompete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Intangible asset useful life (in years)		6 years