BUSINESS ACQUISITIONS AND DIVESTITURES - Acquired Identifiable Assets and Assumed Liabilities (Details) - USD ($) $ in Thousands		1 Months Ended		12 Months Ended
	Oct. 01, 2021	Aug. 31, 2022	Apr. 30, 2022	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Business Acquisition [Line Items]
Goodwill				$ 1,540,246	$ 1,533,424	$ 1,477,564	$ 1,428,610
Purchase price, net of cash acquired				$ 12,494	$ 87,364	$ 85,909
Rochester Home Infusion, Inc
Business Acquisition [Line Items]
Accounts receivable		$ 686
Intangible assets		5,449
Other assets		394
Accounts payable and other liabilities		(434)
Fair value identifiable assets and liabilities		6,095
Goodwill		21,323
Cash acquired		201
Purchase price		27,619
Cash acquired		(201)
Purchase price, net of cash acquired		27,418
Purchase price, net of cash acquired		$ 27,400
Specialty Pharmacy Nursing Network, Inc.
Business Acquisition [Line Items]
Accounts receivable			$ 2,303
Intangible assets			25,580
Other assets			600
Accrued compensation			(1,115)
Accounts payable and other liabilities			(1,168)
Fair value identifiable assets and liabilities			26,200
Goodwill			33,746
Cash acquired			661
Purchase price			60,607
Cash acquired			(661)
Purchase price, net of cash acquired			59,946
Purchase price, net of cash acquired			$ 59,900
Infinity Infusion Nursing LLC
Business Acquisition [Line Items]
Accounts receivable	$ 2,219
Intangible assets	25,400
Accounts payable and other assumed liabilities	(539)
Fair value identifiable assets and liabilities	27,080
Goodwill	32,524
Cash acquired	1,426
Purchase price	61,030
Cash acquired	(1,426)
Purchase price, net of cash acquired	$ 59,604