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Acquisitions - Summary of Preliminary Fair Values of Assets Acquired and Liabilities Assumed (Detail) - USD ($) $ in Thousands | Jun. 30, 2022 | Dec. 31, 2021
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Business Acquisition [Line Items] |  |
Goodwill | $ 2,205,307 | $ 2,199,937
CenterPointe Behavioral Health System, LLC [Member] |  |
Business Acquisition [Line Items] |  |
Cash |  | 5,640
Accounts receivable, net |  | 9,447
Other current assets |  | 2,031
Property and equipment |  | 35,670
Goodwill |  | 98,173
Intangible assets |  | 825
Deferred tax assets |  | 1,573
Operating lease right-of-use assets |  | 29,245
Total assets acquired |  | 182,604
Accounts payable |  | 3,820
Accrued salaries and benefits |  | 3,585
Current portion of operating lease liabilities |  | 2,569
Other accrued liabilities |  | 1,300
Operating lease liabilities |  | 26,675
Total liabilities assumed |  | 37,949
Net assets acquired |  | $ 144,655

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