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Organization and significant accounting policies - Summary of Product Revenue Concentration (Details) - Revenue | 3 Months Ended | 6 Months Ended
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Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Product revenue concentration | CryoStor |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percent | 41.00% | 32.00% | 42.00% | 33.00%
Product revenue concentration | 780XLE Freezer |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percent | 20.00% | 25.00% | 17.00% | 23.00%
Revenue by customers’ geographic locations |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percent | 100.00% | 100.00% | 100.00% | 100.00%
Revenue by customers’ geographic locations | United States |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percent | 83.00% | 75.00% | 81.00% | 77.00%
Revenue by customers’ geographic locations | Europe, Middle East, Africa (EMEA) |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percent | 13.00% | 17.00% | 16.00% | 17.00%
Revenue by customers’ geographic locations | Canada |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percent | 0.00% | 5.00% | 0.00% | 3.00%
Revenue by customers’ geographic locations | Other |  |  |  |
Concentration Risk [Line Items] |  |  |  |
Concentration risk, percent | 4.00% | 3.00% | 3.00% | 3.00%

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