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Subsequent events - Narrative (Details) - Oncacare - USD ($) $ in Millions | Apr. 20, 2023 | Jul. 24, 2020
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Business Acquisition [Line Items] |  |
Business Combination, Consideration Transferred |  | $ 4.9
Percentage of share capital acquired |  | 49.00%
Subsequent event |  |
Business Acquisition [Line Items] |  |
Business Combination, Consideration Transferred | $ 5.1 |
Percentage of share capital acquired | 51.00% |

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