GOODWILL AND OTHER INTANGIBLE ASSETS, NET - Activity Related to Other Intangible Assets, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Intangible Assets [Roll Forward]
Beginning balance	$ 111,190	$ 74,200
Additions	3,500	55,500
Reclass to amortizable intangible		0
Amortization	(13,500)	(18,500)
Ending balance	101,167	111,190
Amortizable acquired names [Member]
Intangible Assets [Roll Forward]
Beginning balance	3,100	5,500
Additions	0	0
Reclass to amortizable intangible		6,600
Amortization	(3,100)	(9,000)
Ending balance	0	3,100
Noncompete Agreements [Member]
Intangible Assets [Roll Forward]
Beginning balance	6,400	7,800
Additions	0	6,200
Reclass to amortizable intangible		0
Amortization	(4,600)	(7,600)
Ending balance	1,800	6,400
Technology-Based Intangible Assets
Intangible Assets [Roll Forward]
Beginning balance	19,000	0
Additions	1,100	20,200
Reclass to amortizable intangible		0
Amortization	(3,000)	(1,200)
Ending balance	17,100	19,000
Certificates of Need and Licenses [Member]
Intangible Assets [Roll Forward]
Beginning balance	47,100	47,000
Additions	2,400	800
Reclass to amortizable intangible		0
Amortization	(2,800)	(700)
Ending balance	46,700	47,100
Unamortizable acquired names [Member]
Intangible Assets [Roll Forward]
Beginning balance	35,600	13,900
Additions	0	28,300
Reclass to amortizable intangible		(6,600)
Amortization	0	0
Ending balance	$ 35,600	$ 35,600