No definition available.

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- Definition

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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- Definition

The maximum amount of payments receivable per drug or program for license fees and/or substantive milestone payments under the collaboration agreement.

+ References

No definition available.

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- Definition

The maximum amount of payments receivable per drug or program for development milestone payments under the collaboration agreement.

+ References

No definition available.

+ Details

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- Definition

The maximum amount of payments receivable per drug or program for regulatory milestone payments under the collaboration agreement.

+ References

No definition available.

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- Definition

The next potential milestone payment to be earned under the collaboration agreement.

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No definition available.

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- Definition

The number of programs under which drugs are to be developed and commercialized under the collaboration agreement.

+ References

No definition available.

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The number of targets for the research and development of drugs under the collaboration agreement.

+ References

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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Amount of deferred revenue as of balance sheet date. Deferred revenue represents collections of cash or other assets related to a revenue producing activity for which revenue has not yet been recognized. Generally, an entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

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Amount of deferred revenue recognized for transactions arising during the current reporting period. Deferred revenue is a liability as of the balance sheet date related to a revenue producing activity for which revenue has not yet been recognized. Generally, an Entity records deferred revenue when it receives consideration from a customer before achieving certain criteria that must be met for revenue to be recognized in conformity with GAAP.

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The amount of consideration recognized during the period for the milestone or milestones.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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Collaborative Arrangements and Licensing Agreements, Strategic Partnership - Biogen (Neurology) (Details) $ in Thousands	1 Months Ended		3 Months Ended		9 Months Ended
	Feb. 29, 2016 USD ($)	Dec. 31, 2012 USD ($) Target Program	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2015 USD ($)
Collaborative Arrangement and Licensing Agreement [Abstract]
Revenue earned			$ 110,927	$ 49,121	$ 186,272	$ 232,133
Neurology [Member]
Collaborative Arrangement and Licensing Agreement [Abstract]
Number of targets \| Target		3
Number of programs under which drugs are to be developed and commercialized \| Program		3
Upfront payment recorded as deferred revenue		$ 30,000
Maximum amount of payment receivable per program			259,000		259,000
Maximum amount of payments receivable per drug or program for development milestones			59,000		59,000
Maximum amount of payments receivable per drug or program for regulatory milestones			130,000		130,000
Cumulative payments received			43,000		43,000
Next prospective milestone			10,000		10,000
Neurology [Member] \| IONIS-BIIB4 [Member]
Collaborative Arrangement and Licensing Agreement [Abstract]
Milestone payment earned	$ 3,000
Collaboration Agreements [Member]
Collaborative Arrangement and Licensing Agreement [Abstract]
Revenue earned			90,200	$ 18,100	120,900	$ 75,100
Deferred revenue			$ 73,100		$ 73,100
Collaboration Agreements [Member] \| Revenue [Member] \| Strategic Partner [Member]
Collaborative Arrangement and Licensing Agreement [Abstract]
Concentration percentage			81.00%	37.00%	65.00%	32.00%