No definition available.

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Cumulative amount of payments received under the collaboration agreement as of the end of the reporting period.

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No definition available.

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The next payment to be achieved under the collaboration agreement.

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No definition available.

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- Definition

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.

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

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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.

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Collaborative Arrangements and Licensing Agreements, Biogen (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023
Collaborative Arrangement and Licensing Agreement [Abstract]
Revenue	$ 225,250	$ 188,411	$ 344,748	$ 318,935
Biogen [Member]
Collaborative Arrangement and Licensing Agreement [Abstract]
Revenue	138,159	$ 97,402	197,395	$ 167,903
Deferred contract revenue	$ 241,800		$ 241,800		$ 307,400
Biogen [Member] \| Revenue [Member] \| Strategic Partner [Member]
Collaborative Arrangement and Licensing Agreement [Abstract]
Concentration percentage	61.00%	52.00%	57.00%	53.00%
Biogen [Member] \| Minimum [Member]
Collaborative Arrangement and Licensing Agreement [Abstract]
Cumulative payments received	$ 3,900,000		$ 3,900,000
2013 Strategic Neurology [Member] \| QALSODY [Member]
Collaborative Arrangement and Licensing Agreement [Abstract]
Next payment to be achieved	10,000		10,000
Revenue	20,000
2012 Neurology [Member] \| ION582 [Member]
Collaborative Arrangement and Licensing Agreement [Abstract]
Revenue	30,000
2012 Neurology [Member] \| IONIS-MAPT [Member]
Collaborative Arrangement and Licensing Agreement [Abstract]
Next payment to be achieved	$ 25,000		$ 25,000