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Accounts Receivable and Net Revenue - Schedule of Net Patient Service Revenue by Type of Payor (Detail)	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Disaggregation of Revenue [Line Items]
Percentage of net patient service revenue	100.00%	100.00%	100.00%	100.00%
Contracted Managed Care [Member]
Disaggregation of Revenue [Line Items]
Percentage of net patient service revenue	72.00%	72.00%	70.00%	71.00%
Government [Member]
Disaggregation of Revenue [Line Items]
Percentage of net patient service revenue	23.00%	23.00%	25.00%	24.00%
Other Third-Parties [Member]
Disaggregation of Revenue [Line Items]
Percentage of net patient service revenue	4.00%	4.00%	4.00%	3.00%
Private-Pay Patients [Member]
Disaggregation of Revenue [Line Items]
Percentage of net patient service revenue	1.00%	1.00%	1.00%	2.00%

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- Definition

Percentage of net patient service revenue by type payor.

+ References

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