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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-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
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-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
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-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 - Schedule of Product Revenue Concentration (Details) - Revenue	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Product revenue concentration \| CryoStor
Concentration Risk [Line Items]
Concentration risk, percent	50.00%	55.00%	50.00%	56.00%
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	77.00%	83.00%	78.00%	82.00%
Revenue by customers' geographic locations \| Europe, Middle East, Africa (EMEA)
Concentration Risk [Line Items]
Concentration risk, percent	17.00%	13.00%	17.00%	14.00%
Revenue by customers' geographic locations \| Other
Concentration Risk [Line Items]
Concentration risk, percent	6.00%	4.00%	5.00%	4.00%