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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Thousands |  |  | 3 Months Ended
--- | --- | --- | ---
Jan. 20, 2022 | Jan. 01, 2021 | Mar. 31, 2022 | Mar. 31, 2021
Equipment acquired and leasehold improvements |  |  | $ 42,200 | $ 28,800
Investment in joint ventures |  |  | $ 44,746 |
Contributions |  | $ 300 |  |
Simi Valley Imaging Group, LLC |  |  |  |
Investment in joint ventures |  | 400 |  |
Simi Adventist |  |  |  |
Investment in joint ventures |  | $ 100 |  |
Aidence B.V |  |  |  |
Shares issued (in shares) | 1,141,234 |  |  |
Equity interest issued, value assigned | $ 30,600 |  |  |
Quantib B.V |  |  |  |
Shares issued (in shares) | 965,058 |  |  |
Equity interest issued, value assigned | $ 25,900 |  |  |

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