Goodwill and Other Intangibles, Net - Schedule of Changes in Goodwill by Segment (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Goodwill
Balance at beginning of period	$ 1,748,426	$ 1,259,147
Acquisitions	19,917	489,221
Noncontrolling interest	1,266	78
Adjustments and disposals	(3,831)	(20)
Balance at end of period	1,765,778	1,748,426
Intangibles Assets
Balance at beginning of period	400,002	315,355
Acquisitions	5,483	87,420
Amortization	(4,574)	(1,494)
Adjustments and disposals	(5,583)	(1,279)
Balance at end of period	395,328	400,002
Home Health
Goodwill
Balance at beginning of period	968,435	884,000
Acquisitions	19,917	84,377
Noncontrolling interest	1,266	78
Adjustments and disposals	(2,491)	(20)
Balance at end of period	987,127	968,435
Intangibles Assets
Balance at beginning of period	237,979	226,004
Acquisitions	5,483	13,734
Amortization	(1,937)	(480)
Adjustments and disposals	(3,805)	(1,279)
Balance at end of period	237,720	237,979
Hospice
Goodwill
Balance at beginning of period	556,332	151,742
Acquisitions	0	404,590
Noncontrolling interest	0
Adjustments and disposals	(20)
Balance at end of period	556,312	556,332
Intangibles Assets
Balance at beginning of period	117,340	44,732
Acquisitions	0	73,026
Amortization	(1,679)	(418)
Adjustments and disposals	(1,267)	0
Balance at end of period	114,394	117,340
Home and community- based
Goodwill
Balance at beginning of period	167,027	166,773
Acquisitions	0	254
Noncontrolling interest		0
Adjustments and disposals	(1,320)	0
Balance at end of period	165,707	167,027
Intangibles Assets
Balance at beginning of period	24,245	24,208
Acquisitions	0	46
Amortization	(9)	(9)
Adjustments and disposals	(511)	0
Balance at end of period	23,725	24,245
Facility-based
Goodwill
Balance at beginning of period	15,770	15,770
Acquisitions	0
Noncontrolling interest	0
Adjustments and disposals	0	0
Balance at end of period	15,770	15,770
Intangibles Assets
Balance at beginning of period	5,919	5,311
Acquisitions	0	614
Amortization	(368)	(6)
Adjustments and disposals	0	0
Balance at end of period	5,551	5,919
HCI
Goodwill
Balance at beginning of period	40,862	40,862
Acquisitions	0	0
Noncontrolling interest	0	0
Adjustments and disposals	0
Balance at end of period	40,862	40,862
Intangibles Assets
Balance at beginning of period	14,519	15,100
Acquisitions	0	0
Amortization	(581)	(581)
Adjustments and disposals	0	0
Balance at end of period	$ 13,938	$ 14,519