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Dispositions and Acquisitions - Additional Information (Detail) | 1 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 31, 2021 USD ($) Bed | Jun. 30, 2021 USD ($) | Jun. 30, 2020 USD ($)
Business Acquisition [Line Items] |  |  |
Acquisition, cash paid |  | $ 0 | $ 1,000,000
Aggregate cash proceeds from divestiture of businesses |  | $ 21,000,000 | $ 6,000,000
Nevada | Subsequent Event |  |  |
Business Acquisition [Line Items] |  |  |
Acquisition, cash paid | $ 40,000,000 |  |
Number of beds available in micro-hospital | Bed | 22 |  |

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