Goodwill and Intangible Assets (Schedule of Carrying Amount and Accumulated Amortization of Intangible Asset) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Finite Lived Intangible Assets [Line Items]
Intangible assets with indefinite lives	$ 27,108
Intangible assets subject to amortization:
Gross carrying amount	116,174
Accumulated amortization	(72,678)
Intangible assets subject to amortization, net	43,496
Total intangible assets at March 31, 2023	70,604	$ 72,188
Customer And Referral Relationships [Member]
Intangible assets subject to amortization:
Gross carrying amount	44,672
Accumulated amortization	(38,471)
Intangible assets subject to amortization, net	6,201
Total intangible assets at March 31, 2023	6,201
Trade Names and Trademarks [Member]
Intangible assets subject to amortization:
Gross carrying amount	52,046
Accumulated amortization	(21,712)
Intangible assets subject to amortization, net	30,334
Total intangible assets at March 31, 2023	30,334
Noncompete Agreements [Member]
Intangible assets subject to amortization:
Gross carrying amount	6,785
Accumulated amortization	(4,989)
Intangible assets subject to amortization, net	1,796
Total intangible assets at March 31, 2023	1,796
State Licenses [Member]
Finite Lived Intangible Assets [Line Items]
Intangible assets with indefinite lives	27,108
Intangible assets subject to amortization:
Gross carrying amount	12,671
Accumulated amortization	(7,506)
Intangible assets subject to amortization, net	5,165
Total intangible assets at March 31, 2023	$ 32,273