Goodwill and Intangible Assets (Schedule of Carrying Amount and Accumulated Amortization of Intangible Asset) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Finite Lived Intangible Assets [Line Items]
Intangible assets with indefinite lives	$ 21,124	$ 20,791
Intangible assets subject to amortization:
Gross carrying amount	106,891	106,330
Accumulated amortization	(63,694)	(55,572)
Intangible assets subject to amortization, net	43,197	50,758
Net balance at end of period	64,321	71,549
Customer and Referral Relationships [Member]
Intangible assets subject to amortization:
Gross carrying amount	44,672	44,672
Accumulated amortization	(36,342)	(34,439)
Intangible assets subject to amortization, net	8,330	10,233
Net balance at end of period	8,330	10,233
Trade Names and Trademarks [Member]
Intangible assets subject to amortization:
Gross carrying amount	42,926	42,926
Accumulated amortization	(18,494)	(15,191)
Intangible assets subject to amortization, net	24,432	27,735
Net balance at end of period	24,432	27,735
Non-competition Agreements [Member]
Intangible assets subject to amortization:
Gross carrying amount	6,785	6,225
Accumulated amortization	(3,831)	(2,887)
Intangible assets subject to amortization, net	2,954	3,338
Net balance at end of period	2,954	3,338
State Licenses [Member]
Finite Lived Intangible Assets [Line Items]
Intangible assets with indefinite lives	21,124	20,791
Intangible assets subject to amortization:
Gross carrying amount	12,508	12,507
Accumulated amortization	(5,027)	(3,055)
Intangible assets subject to amortization, net	7,481	9,452
Net balance at end of period	$ 28,605	$ 30,243