Accounts Receivable and Net Revenue - Schedule of Net Revenue (Detail) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Disaggregation of Revenue [Abstract]
Net revenue	$ 468,844	$ 504,296	$ 927,203	$ 999,397
Net patient service revenue [Member]
Disaggregation of Revenue [Abstract]
Net revenue	397,410	432,847	786,788	854,678
Hospital contract administrative fees [Member]
Disaggregation of Revenue [Abstract]
Net revenue	68,224	70,913	133,408	142,716
Other revenue [Member]
Disaggregation of Revenue [Abstract]
Net revenue	$ 3,210	$ 536	$ 7,007	$ 2,003

Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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+ Details