BUSINESS COMBINATIONS AND RELATED ACTIVITY (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Aug. 01, 2023	Apr. 01, 2023	Feb. 01, 2023	Jan. 01, 2023	Dec. 31, 2022
Business Acquisition [Line Items]
Goodwill	$ 676,376					$ 677,665
Business Acquisitions
Business Acquisition [Line Items]
Total Consideration	10,765
Property & Equipment	3,942
Right of Use Assets	8,173
Goodwill	6,473
Intangible Assets	300
Other Assets	50
Right of Use Liabilities	$ (8,173)
C.C.D.G.L.R. & S Services Inc.
Business Acquisition [Line Items]
Total Consideration					$ 3,500
Property & Equipment					435
Right of Use Assets					1,689
Goodwill					3,015
Intangible Assets					50
Other Assets					0
Right of Use Liabilities					(1,689)
Southern California Diagnostic Imaging, Inc.
Business Acquisition [Line Items]
Total Consideration					1,815
Property & Equipment					466
Right of Use Assets					1,184
Goodwill					1,272
Intangible Assets					50
Other Assets					27
Right of Use Liabilities					$ (1,184)
Inglewood Imaging Center, LLC
Business Acquisition [Line Items]
Total Consideration				$ 2,600
Property & Equipment				877
Right of Use Assets				1,188
Goodwill				1,658
Intangible Assets				50
Other Assets				15
Right of Use Liabilities				(1,188)
Ramapo Radiology Associates, P.C.
Business Acquisition [Line Items]
Total Consideration				2,000
Property & Equipment				1,663
Right of Use Assets				3,775
Goodwill				229
Intangible Assets				100
Other Assets				8
Right of Use Liabilities				$ (3,775)
Madison Radiology Medical Group, Inc.
Business Acquisition [Line Items]
Total Consideration			$ 250
Property & Equipment			100
Right of Use Assets			0
Goodwill			150
Intangible Assets			0
Other Assets			0
Right of Use Liabilities			$ 0
Delaware Diagnostic Imaging, P.A.
Business Acquisition [Line Items]
Total Consideration		$ 600
Property & Equipment		401
Right of Use Assets		337
Goodwill		149
Intangible Assets		50
Other Assets		0
Right of Use Liabilities		$ (337)