Organization and significant accounting policies - Narrative (Details)	1 Months Ended		12 Months Ended
	Jun. 30, 2021 USD ($)	Nov. 30, 2020 USD ($)	Dec. 31, 2023 USD ($) reportable_segment reporting_unit	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Short-Term Debt [Line Items]
Number of reportable segments | reportable_segment			1
Number of reportable units | reporting_unit			1
Contract with customer, liability, revenue recognized			$ 400,000
Inventory write-down			5,700,000
Impairment of intangible assets (excluding goodwill)			5,800,000	$ 110,400,000	$ 0
Unrecognized tax benefits			954,000	610,000	255,000
Sales and excise tax payable			5,400,000	3,700,000
Advertising expense			1,500,000	$ 800,000	$ 600,000
Interest Expense
Short-Term Debt [Line Items]
Sales and excise tax payable			$ 400,000
Customer Concentration Risk | Revenue Benchmark | One Customer
Short-Term Debt [Line Items]
Concentration risk, percentage			16.00%	18.00%	17.00%
Customer Concentration Risk | Accounts Receivable | One Customer
Short-Term Debt [Line Items]
Concentration risk, percentage			14.00%
Customer Concentration Risk | Accounts Receivable | Two Customers
Short-Term Debt [Line Items]
Concentration risk, percentage				26.00%
Supplier Concentration Risk | Accounts Payable | One Supplier
Short-Term Debt [Line Items]
Concentration risk, percentage			12.00%	23.00%
Tax Attributes Carried Forward
Short-Term Debt [Line Items]
Unrecognized tax benefits			$ 2,200,000
Assets Held for Rent
Short-Term Debt [Line Items]
Property, plant and equipment, useful life (year)			3 years
Impairment of intangible assets (excluding goodwill)			$ 0	$ 0	$ 0
Minimum
Short-Term Debt [Line Items]
Property, plant and equipment, useful life (year)			3 years
Standard warranty, term			1 year
Maximum
Short-Term Debt [Line Items]
Property, plant and equipment, useful life (year)			10 years
Standard warranty, term			7 years
Series A-1 and A-2, Preferred Stock
Short-Term Debt [Line Items]
Equity securities without readily determinable fair value, amount			$ 4,100,000	4,100,000
Series E Preferred Stock
Short-Term Debt [Line Items]
Equity securities without readily determinable fair value, amount			995,000	995,000
Convertible Debt Securities
Short-Term Debt [Line Items]
Debt securities, gain (loss), total			$ 0	$ 700,000	$ 0
Contingent Convertible Preferred Stock | Series A-2 Preferred Stock
Short-Term Debt [Line Items]
Equity securities without readily determinable fair value, amount		$ 1,000,000
Contingent Convertible Preferred Stock | Preferred Stock, Class E
Short-Term Debt [Line Items]
Contingent milestone payment	$ 200,000	2,000,000
Contingent Convertible Preferred Stock | Preferred Stock, Class E | PanTHERA Cryosolutions Investment
Short-Term Debt [Line Items]
Equity securities without readily determinable fair value, amount		$ 995,000