Accounts Receivable and Net Revenue - Schedule of Net Revenue (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Disaggregation of Revenue [Abstract]
Net revenue	$ 1,913,849	$ 2,012,919	$ 1,994,640
Net patient service revenue [Member]
Disaggregation of Revenue [Abstract]
Net revenue	1,630,517	1,723,604	1,716,368
Hospital contract administrative fees [Member]
Disaggregation of Revenue [Abstract]
Net revenue	271,125	286,684	275,677
Other revenue [Member]
Disaggregation of Revenue [Abstract]
Net revenue	$ 12,207	$ 2,631	$ 2,595