Collaboration Revenue - Narrative (Details) $ in Thousands, € in Millions			1 Months Ended		3 Months Ended		12 Months Ended
	Jul. 30, 2021 USD ($)	Jul. 30, 2021 EUR (€) item	May 31, 2023 USD ($)	Dec. 31, 2022 USD ($) item product	Mar. 31, 2024 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($) item	Dec. 31, 2023 USD ($)
License and Collaboration Revenue
Contract liability					$ 400			$ 0
Net Contract Liability					17,730			17,545
Collaboration revenue
License and Collaboration Revenue
Collaboration revenue					18
Collaboration Agreement with Orion
License and Collaboration Revenue
Upfront fee received	$ 29,600	€ 25.0
Number of days from receipt of the final report, in which the collaboration agreement may be terminated	90 days	90 days
Percentage of upfront fee which must be refunded in the event of termination		75.00%
Amount of payment receivable upon achievement of specific clinical and commercial achievements | €		€ 97.0
Term of collaboration agreement	10 years	10 years
Number of performance obligations | item		3
Collaboration revenue							$ 12,700
Transaction Price					37,880			37,880
Contract liability					13,372			13,709
Contract asset					2,372			2,912
Net Contract Liability					11,000			10,797
Offset by contract asset					2,372			2,912
Incremental costs incurred in obtaining the agreement					2,000
Capitalized contract costs					900
Collaboration Agreement with Orion | Selling, general and administrative
License and Collaboration Revenue
Contract acquisition costs included in selling, general and administrative expense					1,100
Collaboration Agreement with Orion | License Revenue
License and Collaboration Revenue
Transaction Price					21,660			21,660
Collaboration Agreement with Orion | Development and Regulatory Services
License and Collaboration Revenue
Amortization of transaction price as a reduction of research and development costs					300
Transaction Price					6,717			6,717
Contract liability					3,869			4,206
Collaboration Agreement with Orion | Supply of License Product
License and Collaboration Revenue
Transaction Price					9,503			9,503
Contract liability					9,503			9,503
Collaboration Agreement with Tenacia
License and Collaboration Revenue
Upfront fee received				$ 10,000
Aggregate amount				256,000
Milestone regulatory approvals				15,000
Aggregative sales based milestone				$ 241,000
Term of collaboration agreement				45 days
Number of performance obligations | item				2			2
Number of commitments represent distinct performance | item				2			2
Transaction Price					10,000			10,000
Contract liability					7,002			7,002
Contract asset					700			700
Net Contract Liability					6,302			6,302
Offset by contract asset					700			700
Incremental costs incurred in obtaining the agreement					1,000
Capitalized contract costs					700
Cost of product revenue					200
Number of Selected Products to which milestone payments applicable | product				1
Collaboration Agreement with Tenacia | Selling, general and administrative
License and Collaboration Revenue
Contract acquisition costs included in selling, general and administrative expense					100
Collaboration Agreement with Tenacia | License Revenue
License and Collaboration Revenue
Collaboration revenue					0	$ 0
Transaction Price					2,998			2,998
Collaboration Agreement with Tenacia | Collaboration revenue
License and Collaboration Revenue
Transaction Price					3,000			3,000
Collaboration Agreement with Tenacia | Supply of License Product
License and Collaboration Revenue
Transaction Price					7,002			7,002
Contract liability					7,002			$ 7,002
Biologix Distribution and Supply Agreement
License and Collaboration Revenue
Upfront fee received			$ 500
Biologix Distribution and Supply Agreement | Maximum
License and Collaboration Revenue
Collaboration revenue					$ 100