EARNINGS PER SHARE - Schedule of Basic and Diluted Earnings (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Jun. 26, 2023
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Net (loss) income	$ 267,090	$ 150,556	$ 139,898
Weighted average common shares outstanding, basic (in shares)	178,973	181,105	179,855
Earnings per share, basic (in dollars per share)	$ 1.49	$ 0.83	$ 0.78
Effect of dilutive securities (in shares)	1,402	970	1,350
Weighted average common shares outstanding, diluted (in shares)	180,375	182,075	181,205
Earnings per share, diluted (in dollars per share)	$ 1.48	$ 0.83	$ 0.77
Other nonoperating income	$ 5,300
Amedisys, Inc.
Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]
Termination fee	$ 63,100			$ 106,000