For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 280
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 42
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482810/280-10-50-42

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 825
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-Section 50
-Paragraph 21
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482907/825-10-50-21

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 825
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-Section 50
-Paragraph 20
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482907/825-10-50-20

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 275
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-URI https://asc.fasb.org//1943274/2147482861/275-10-50-18

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 275
-SubTopic 10
-Section 50
-Paragraph 20
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482861/275-10-50-20

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

Organization and significant accounting policies - Summary of Product Revenue Concentration (Details) - Revenue	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Product revenue concentration \| CryoStor
Concentration Risk [Line Items]
Concentration risk, percent	33.00%	38.00%	39.00%	35.00%
Product revenue concentration \| 780XLE Freezer
Concentration Risk [Line Items]
Concentration risk, percent	23.00%	21.00%	19.00%	22.00%
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 \| North America
Concentration Risk [Line Items]
Concentration risk, percent	81.00%	81.00%	81.00%	81.00%
Revenue by customers' geographic locations \| Europe, Middle East, Africa (EMEA)
Concentration Risk [Line Items]
Concentration risk, percent	15.00%	16.00%	16.00%	16.00%
Revenue by customers' geographic locations \| Other
Concentration Risk [Line Items]
Concentration risk, percent	4.00%	3.00%	3.00%	3.00%