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Accounts Receivable and Net Revenue - Schedule of Net Patient Service Revenue by Type of Payor (Detail)	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Percentage of net patient service revenue	100.00%	100.00%	100.00%
Contracted Managed Care [Member]
Disaggregation of Revenue [Line Items]
Percentage of net patient service revenue	70.00%	67.00%	66.00%
Government [Member]
Disaggregation of Revenue [Line Items]
Percentage of net patient service revenue	24.00%	26.00%	26.00%
Other Third-Parties [Member]
Disaggregation of Revenue [Line Items]
Percentage of net patient service revenue	4.00%	5.00%	6.00%
Private-Pay Patients [Member]
Disaggregation of Revenue [Line Items]
Percentage of net patient service revenue	2.00%	2.00%	2.00%

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- Definition

Percentage of net patient service revenue by type payor.

+ References

No definition available.

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- Definition

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