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BUSINESS COMBINATIONS AND RELATED ACTIVITY - Narrative (Details) $ in Thousands |  | 3 Months Ended | 6 Months Ended |  |
--- | --- | --- | --- | --- | ---
Mar. 29, 2024 USD ($) location | Jun. 30, 2024 USD ($) | Jun. 30, 2023 USD ($) | Jun. 30, 2024 USD ($) | Jun. 30, 2023 USD ($) | Feb. 23, 2024 location | Dec. 31, 2023 USD ($)
Business Acquisition [Line Items] |  |  |  |  |  |  |
Property and equipment, net |  | $ 652,882 |  | $ 652,882 |  |  | $ 604,401
Goodwill |  | 708,980 |  | 708,980 |  |  | $ 679,463
Gain (loss) on disposition of property plant equipment |  | (401) | $ (77) | (587) | $ (656) |  |
Book value of RadNet joint venture interests |  | $ 9,200 |  | $ 9,200 |  |  |
Tri Valley Imaging Group, LLC |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Number of location offering multi-modality services | location | 4 |  |  |  |  |  |
Providence Health System |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Number of location offering multi-modality services | location | 3 |  |  |  |  |  |
Providence Health System | Tri Valley Imaging Group, LLC |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Book value of RadNet joint venture interests | $ 7,800 |  |  |  |  |  |
Tri Valley Imaging Group, LLC |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Number of location offering multi-modality services | location |  |  |  |  |  | 7 |
Ownership interest | 52.00% |  |  |  |  |  |
Tri Valley Imaging Group, LLC | Additional Paid-In Capital |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Gain (loss) on disposition of property plant equipment | $ 7,600 |  |  |  |  |  |
Tri Valley Imaging Group, LLC | Tri Valley Imaging Group, LLC |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Goodwill | 6,500 |  |  |  |  |  |
Tri Valley Imaging Group, LLC | Tri Valley Imaging Group, LLC | Fixed Assets |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Property and equipment, net | 600 |  |  |  |  |  |
Tri Valley Imaging Group, LLC | Providence Health System |  |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |  |
Goodwill | 6,500 |  |  |  |  |  |
Limited partners' contributed capital | $ 9,600 |  |  |  |  |  |
Minority partner ownership percent | 48.00% |  |  |  |  |  |

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