Collaboration and Licensing Agreements - Deferred Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Current
Beginning balance	$ 7,182
Ending balance	6,586
Non-Current
Beginning balance	8,644
Ending balance	12,103
2017 KKC Agreement
Current
Beginning balance	7,182	$ 4,211
Amounts invoiced as prepayments for product supply	732	525
Decrease for revenue recognized for product supply	(1,328)	0
Reclassify amounts to be recognized in the next twelve months	0	809
Ending balance	6,586	5,545
Non-Current
Beginning balance	8,644	9,025
Amounts invoiced as prepayments for product supply	3,459	3,282
Decrease for revenue recognized for product supply	0	0
Reclassify amounts to be recognized in the next twelve months	0	(809)
Ending balance	$ 12,103	$ 11,498