Business acquisition - Preliminary estimate of the intangible assets (Details) - AbX Biologics, Inc. $ in Thousands	Dec. 01, 2021 USD ($)
Business Acquisition [Line Items]
Estimated Fair Value	$ 46,500
Developed Technology
Business Acquisition [Line Items]
Estimated Weighted Average Useful Lives in Years	14 years
Estimated Fair Value	$ 30,900
Customer Relationships
Business Acquisition [Line Items]
Estimated Weighted Average Useful Lives in Years	10 years
Estimated Fair Value	$ 14,700
Trade name
Business Acquisition [Line Items]
Estimated Weighted Average Useful Lives in Years	3 years
Estimated Fair Value	$ 900

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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