BUSINESS COMBINATIONS AND RELATED ACTIVITY (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Feb. 01, 2023	Jan. 01, 2023	Dec. 31, 2022
Business Acquisition [Line Items]
Goodwill	$ 687,085			$ 677,665
Business Acquisitions
Business Acquisition [Line Items]
Total Consideration	9,915
Property & Equipment	3,441
Right of Use Assets	7,836
Goodwill	6,174
Intangible Assets	250
Other Assets	50
Right of Use Liabilities	$ (7,836)
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)