SEGMENT REPORTING (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Segment Reporting Information [Line Items]
Total consolidated revenues	$ (471,399)	$ (431,707)
Segment profit (loss)	(24,101)	11,339
Depreciation and amortization	(35,483)	(32,368)
Loss on sale and disposal of equipment and other	(402)	(186)
Severance costs	(747)	(225)
Interest expense	(17,239)	(16,267)
Equity in earnings of joint ventures	2,599	4,324
Non-cash change in fair value of interest rate swaps	(2,106)	1,216
Other income	7,712	2,934
(LOSS) INCOME BEFORE INCOME TAXES	(33,135)	3,546
Imaging Center
Segment Reporting Information [Line Items]
Total consolidated revenues	(461,378)	(423,209)
Digital health
Segment Reporting Information [Line Items]
Total consolidated revenues	(10,021)	(8,498)
Operating Segments
Segment Reporting Information [Line Items]
Total consolidated revenues	(480,599)	(437,870)
Other segment items	458,868	387,589
Segment profit (loss)	12,531	44,118
Operating Segments | Imaging Center
Segment Reporting Information [Line Items]
Total consolidated revenues	(461,378)	(423,209)
Other segment items	436,531	372,323
Segment profit (loss)	15,648	44,723
Operating Segments | Digital health
Segment Reporting Information [Line Items]
Total consolidated revenues	(19,221)	(14,661)
Other segment items	22,338	15,266
Segment profit (loss)	(3,117)	(605)
Intersegment Eliminations
Segment Reporting Information [Line Items]
Total consolidated revenues	9,200	6,163
Intersegment Eliminations | Imaging Center
Segment Reporting Information [Line Items]
Total consolidated revenues	0	0
Intersegment Eliminations | Digital health
Segment Reporting Information [Line Items]
Total consolidated revenues	$ 9,200	$ 6,163