Commitments and Contingencies - Schedule of Changes in General and Professional Liability and Workers Compensation Reserves (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Commitments and Contingencies Disclosure [Line Items]
Beginning balance	$ 561,789	$ 496,416	$ 463,678
Plus: Accrued insurance expense, net of commercial premiums paid	254,394	183,462	174,723
Less: Payments made in settlement of self-insured claims	(192,185)	(118,089)	(141,985)
Ending balance	623,998	561,789	496,416
General and Professional Liability
Commitments and Contingencies Disclosure [Line Items]
Beginning balance	431,485	371,900	348,693
Plus: Accrued insurance expense, net of commercial premiums paid	184,110	127,445	111,763
Less: Payments made in settlement of self-insured claims	(128,707)	(67,860)	(88,556)
Ending balance	486,888	431,485	371,900
Workers’ Compensation
Commitments and Contingencies Disclosure [Line Items]
Beginning balance	130,304	124,516	114,985
Plus: Accrued insurance expense, net of commercial premiums paid	70,284	56,017	62,960
Less: Payments made in settlement of self-insured claims	(63,478)	(50,229)	(53,429)
Ending balance	$ 137,110	$ 130,304	$ 124,516