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Other Intangible Assets - Other Identifiable Intangible Assets and Related Accumulated Amortization (Detail) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
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Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items] |  |
Intangible assets subject to amortization, Gross Carrying Amount | $ 3,231 | $ 3,231
Intangible assets not subject to amortization, Gross Carrying Amount | 90,023 | 90,357
Total | 93,254 | 93,588
Intangible assets subject to amortization, Accumulated Amortization | (3,231) | (3,231)
Intangible assets not subject to amortization, Accumulated Amortization | 0 | 0
Total | (3,231) | (3,231)
Contract Intangible Assets [Member] |  |
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items] |  |
Intangible assets subject to amortization, Gross Carrying Amount | 2,100 | 2,100
Intangible assets subject to amortization, Accumulated Amortization | (2,100) | (2,100)
Non-Compete Agreements [Member] |  |
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items] |  |
Intangible assets subject to amortization, Gross Carrying Amount | 1,131 | 1,131
Intangible assets subject to amortization, Accumulated Amortization | (1,131) | (1,131)
Licenses and Accreditations [Member] |  |
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items] |  |
Intangible assets not subject to amortization, Gross Carrying Amount | 12,445 | 12,455
Intangible assets not subject to amortization, Accumulated Amortization | 0 | 0
Trade Names [Member] |  |
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items] |  |
Intangible assets not subject to amortization, Gross Carrying Amount | 60,329 | 60,831
Intangible assets not subject to amortization, Accumulated Amortization | 0 | 0
Certificates of Need [Member] |  |
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items] |  |
Intangible assets not subject to amortization, Gross Carrying Amount | 17,249 | 17,071
Intangible assets not subject to amortization, Accumulated Amortization | $ 0 | $ 0

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