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Goodwill and Intangible Assets (Schedule of Carrying Amount and Accumulated Amortization of Intangible Asset) (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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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

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