Collaborative Arrangements and Licensing Agreements - Revenue from Collaborative Relationship with Biogen (Details) - Biogen [Member] - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Collaborative Arrangements and Licensing Agreements [Abstract]
Revenue	$ 133,866	$ 71,942	$ 195,552	$ 137,059
Revenue [Member] \| Strategic Partner [Member]
Collaborative Arrangements and Licensing Agreements [Abstract]
Concentration percentage	50.00%	16.00%	38.00%	23.00%

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

+ References

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+ Details