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Commitments and contingencies - Narrative (Details) $ in Thousands							3 Months Ended		12 Months Ended
	Jan. 31, 2024 USD ($)	Mar. 08, 2023 USD ($)	Nov. 10, 2021 USD ($)	Dec. 22, 2020	Aug. 23, 2019	Feb. 09, 2016	Mar. 30, 2024 USD ($) letter_of_credit	Apr. 01, 2023 USD ($)	Dec. 31, 2022 USD ($)	Dec. 31, 2023 USD ($) letter_of_credit
Loss Contingencies [Line Items]
Number of letters of credit outstanding | letter_of_credit							3			3
Letters of credit outstanding, amount							$ 1,800			$ 1,800
Stop loss insurance, threshold per member per year							250
Three Injection OA Product
Loss Contingencies [Line Items]
Supply commitment, term						10 years
Supply commitment, renewal term						5 years
Harbor
Loss Contingencies [Line Items]
Collaborative agreement, royalty percentage					3.00%
Supply commitment, term				8 years
Supplier of Single Injection OA Product
Loss Contingencies [Line Items]
Royalty expense							$ 3,579	$ 2,321
HA Product
Loss Contingencies [Line Items]
Collaborative arrangement, upfront payments			$ 853
Collaborative arrangement, amount payable upon transfer of customer data									$ 853
Collaborative arrangement, amount payable upon obtaining product certification			$ 1,707
Collaborative arrangement, rights and obligations, payment period			5 days
Collaborative arrangement, royalty percentage, threshold one			5.00%
Collaborative arrangement, sales threshold for royalties			$ 569
Collaborative arrangement, royalty percentage, threshold two			2.50%
Collaborative arrangement, adjusted amount payable upon obtaining product certification		$ 1,418
Milestone payment paid	$ 709
Finite-lived intangible asset recognized	$ 709
Minimum
Loss Contingencies [Line Items]
Lessee, operating lease, remaining lease term							1 month
Maximum
Loss Contingencies [Line Items]
Lessee, operating lease, remaining lease term							9 years 1 month 6 days

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