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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Millions |  |  |  |  |  | 9 Months Ended
--- | --- | --- | --- | --- | --- | ---
Sep. 20, 2023 | Sep. 01, 2023 | Jul. 07, 2023 | Apr. 30, 2023 | Jan. 20, 2022 | Sep. 30, 2023 | Sep. 30, 2022
Statement of Cash Flows [Abstract] |  |  |  |  |  |  |
Equipment acquired and leasehold improvements |  |  |  |  |  | $ 50.2 | $ 61.0
Santa Monica Imaging Group, LLC |  |  |  |  |  |  |
Payments to acquire equity method investments |  | $ 32.0 |  |  |  |  |
Proceeds from Dividends Received |  | 9.8 |  |  |  |  |
Book value of RadNet joint venture interests |  | $ 22.2 |  |  |  |  |
Quantib B.V. |  |  |  |  |  |  |
Shares issued (in shares) |  |  |  |  | 965,058 |  |
Equity interest issued, value assigned |  |  |  |  | $ 25.9 |  |
Quantib B.V. | Stock Holdback |  |  |  |  |  |  |
Shares issued (in shares) |  |  | 113,303 |  |  |  |
Equity interest issued, value assigned |  |  | $ 3.5 |  |  |  |
Heart & Lung Imaging Limited | Stock Holdback |  |  |  |  |  |  |
Shares issued (in shares) | 56,600 |  |  |  |  |  |
Equity interest issued, value assigned | $ 1.6 |  |  |  |  |  |
Aidence Holding B.V. |  |  |  |  |  |  |
Shares issued (in shares) |  |  |  |  | 1,141,234 |  |
Equity interest issued, value assigned |  |  |  |  | $ 30.6 |  |
Aidence Holding B.V. | General Holdback |  |  |  |  |  |  |
Shares issued (in shares) |  |  |  | 144,227 |  |  |
Equity interest issued, value assigned |  |  |  | $ 4.0 |  |  |

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