Acquisitions, Goodwill and Intangible Assets (Schedule of Acquired Intangible Assets by Major Category) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Acquired Finite-Lived Intangible Assets [Line Items]
Total gross carrying amount	$ 43,084	$ 43,084
Total accumulated amortization	(42,265)	(41,762)
Total net carrying amount	819	1,322
Customer Relationships [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Total gross carrying amount	32,177	32,177
Total accumulated amortization	(31,443)	(30,990)
Trade Names [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Total gross carrying amount	3,440	3,440
Total accumulated amortization	(3,355)	(3,305)
Management Agreement [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Total gross carrying amount	3,232	3,232
Total accumulated amortization	(3,232)	(3,232)
Non-compete & Employment Agreements [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Total gross carrying amount	4,235	4,235
Total accumulated amortization	(4,235)	(4,235)
Insurance Licenses [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Total gross carrying amount	$ 0	$ 0