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Organization and significant accounting policies - Concentrations Risk by Geographic Locations (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Long-lived assets | $ 40,330 | $ 48,266 |
United States |  |  |
Long-lived assets | 33,378 | 42,829 |
Netherlands |  |  |
Long-lived assets | $ 6,952 | $ 5,437 |
Revenue Benchmark | Product Concentration Risk | CryoStor |  |  |
Revenue | 39.00% | 36.00% | 33.00%
Revenue Benchmark | Product Concentration Risk | 780XLE Freezer |  |  |
Revenue | 19.00% | 22.00% | 22.00%
Revenue Benchmark | Geographic Concentration Risk |  |  |
Revenue | 100.00% | 100.00% | 100.00%
Revenue Benchmark | Geographic Concentration Risk | United States |  |  |
Revenue | 80.00% | 79.00% | 85.00%
Revenue Benchmark | Geographic Concentration Risk | Europe, Middle East, Africa (EMEA) |  |  |
Revenue | 16.00% | 16.00% | 11.00%
Revenue Benchmark | Geographic Concentration Risk | Other |  |  |
Revenue | 4.00% | 5.00% | 4.00%

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