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Goodwill and Other Intangible Assets - Other Identifiable Intangible Assets and Related Accumulated Amortization (Detail) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Schedule Of Finite and Indefinite Lived Other Intangible Assets [Line Items] |  |
Intangible assets not subject to amortization, Gross Carrying Amount | $ 70,319 | $ 70,145
Total | 71,450 | 71,276
Intangible assets not subject to amortization, Accumulated Amortization | 0 | 0
Total | (1,131) | (1,131)
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 | 11,600 | 11,600
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 | 40,435 | 40,435
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 | 18,284 | 18,110
Intangible assets not subject to amortization, Accumulated Amortization | $ 0 | $ 0

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