CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Thousands								12 Months Ended
	Mar. 27, 2024	Dec. 12, 2023	Sep. 20, 2023	Jul. 07, 2023	Apr. 13, 2023	Nov. 01, 2022	Jan. 20, 2022	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022	Sep. 01, 2023	Feb. 01, 2023	Apr. 01, 2022
Equipment acquired and leasehold improvements								$ 65,600	$ 67,700	$ 111,800
Contingent consideration to guarantee share value issued								10,400
Property and equipment, net								694,791	604,401
Goodwill								710,663	679,463	677,665
Investment in joint ventures								104,057	92,710	57,893
Fair value of investment								$ 8,000
Frederick County Radiology, LLC | Frederick Health Hospital, Inc.
Property and equipment, net													$ 8,400
Promissory Note
Debt instrument, face amount												$ 19,800
Unsecured Debt
Debt instrument, face amount												$ 19,800
Santa Monica Imaging Group LLC
Investment in joint ventures											$ 27,200
Arizona Diagnostics Group
Investment at cost						$ 12,700
Received a dividend from the partnership						4,500
Fair value of investment						$ 8,300
Heart & Lung Imaging Limited | Stock Holdback
Shares issued (in shares)	95,019	64,569	56,600
Value of RadNet stock issued in acquisition	$ 4,600	$ 2,300	$ 1,600
Quantib
Contingent consideration to guarantee share value issued									0	2,134
Shares issued (in shares)							965,058
Value of RadNet stock issued in acquisition							$ 25,900
Quantib | Stock Holdback
Contingent consideration to guarantee share value issued				$ 3,500
Shares issued (in shares)				113,303
Value of RadNet stock issued in acquisition				$ 3,500
Aidence Holding B.V. | General Holdback
Shares issued (in shares)					144,227
Value of RadNet stock issued in acquisition					$ 4,000
Aidence
Contingent consideration to guarantee share value issued									$ 0	$ 7,158
Shares issued (in shares)						359,002	1,141,234
Value of RadNet stock issued in acquisition						$ 6,800	$ 30,600