BUSINESS ACQUISITIONS AND DIVESTITURES - Acquired Identifiable Assets and Assumed Liabilities (Details) - USD ($) $ in Thousands			1 Months Ended		12 Months Ended
	Dec. 29, 2021	Oct. 01, 2021	Aug. 31, 2022	Apr. 30, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Goodwill					$ 1,533,424	$ 1,477,564	$ 1,428,610	$ 1,425,542
Cash acquired			$ (201)
Purchase price, net of cash acquired					$ 87,364	$ 85,909	$ 0
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
Purchase price, net of cash acquired		$ 59,604
Wasatch Infusion LLC
Business Acquisition [Line Items]
Accounts receivable	$ 2,688
Inventories	2,038
Intangible assets	4,245
Other assets	769
Accounts payable and other assumed liabilities	(6,686)
Other assumed liabilities	(965)
Fair value identifiable assets and liabilities	2,089
Goodwill	17,366
Purchase price	$ 19,455
Specialty Pharmacy Nursing Network, Inc.
Business Acquisition [Line Items]
Accounts receivable				$ 2,303
Intangible assets				25,580
Other assets				600
Accrued compensation				(1,115)
Other assumed liabilities				(1,168)
Fair value identifiable assets and liabilities				26,200
Goodwill				33,746
Cash acquired				(661)
Purchase price				60,607
Purchase price, net of cash acquired				59,900
Purchase price, net of cash acquired				$ 59,946
Rochester Home Infusion, Inc
Business Acquisition [Line Items]
Accounts receivable			831
Intangible assets			5,449
Other assets			394
Other assumed liabilities			(434)
Fair value identifiable assets and liabilities			6,240
Goodwill			21,178
Cash acquired			(201)
Purchase price			27,619
Purchase price, net of cash acquired			27,400
Purchase price, net of cash acquired			$ 27,418