License, Collaboration and Service Agreements - Schedule of remaining potential milestone payments (Details) - USD ($) $ in Millions	Jun. 30, 2026	May 31, 2025
Maximum [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Sales milestone events		$ 750.0
Minimum [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Milestone payment	$ 750.0
GSK License Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Milestone payment	225.0
GSK License Agreement [Member] \| Maximum [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Milestone payment		$ 150.0
GSK License Agreement [Member] \| Minimum [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Milestone payment	1,000.0
Potential Commercial Milestone Payments \| GSK License Agreement [Member] \| Maximum [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Milestone payment	101.0
Europe [Member] \| Potential Commercial Milestone Payments
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Milestone payment	25.0
UNITED STATES \| Potential Commercial Milestone Payments
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Milestone payment	51.0
Net sales greater than $200M
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Sales milestone events	200.0
Net sales greater than $200M \| GSK License Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Milestone payment	25.0
Net sales greater than $300M
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Sales milestone events	300.0
Net sales greater than $300M \| GSK License Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Milestone payment	25.0
Net sales greater than $400M
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Sales milestone events	400.0
Net sales greater than $400M \| GSK License Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Milestone payment	25.0
Net sales greater than $500M
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Sales milestone events	500.0
Net sales greater than $500M \| GSK License Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Milestone payment	50.0
Net sales greater than $750M
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Sales milestone events	750.0
Net sales greater than $750M \| GSK License Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Milestone payment	50.0
Net sales greater than $1,000M
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Sales milestone events	1,000.0
Net sales greater than $1,000M \| GSK License Agreement [Member]
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Milestone payment	50.0
Second Anniversary of First Commercial Sale [Member] \| UNITED STATES
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Milestone payment	$ 25.0