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Represents the maximum amount of payments receivable under the agreement.

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No definition available.

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Represents the amount of near-term payments that can be received under the agreement.

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No definition available.

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Represents the next potential milestone payment to be earned.

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No definition available.

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- Definition

The maximum percentage of gross margins of sales of the drug received as royalties under the collaborative arrangement.

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No definition available.

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Represents the amount of upfront fees received during the period under the 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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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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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, Research, Development and Commercialization Partners - Bayer (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended								12 Months Ended
	Jun. 30, 2015	May. 31, 2015	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Collaborative Arrangement and Licensing Agreement [Abstract]
Revenue earned			$ 51,571	$ 49,121	$ 120,428	$ 62,583	$ 84,861	$ 44,063	$ 57,076	$ 28,161	$ 283,703	$ 214,161	$ 147,285
Agreement Entered into in May 2015 [Member] \| License Fees, Substantive Milestone Payments and Other Payments [Member]
Collaborative Arrangement and Licensing Agreement [Abstract]
Maximum amount of payments receivable		$ 375,000
Agreement Entered into in May 2015 [Member] \| Development Milestones [Member]
Collaborative Arrangement and Licensing Agreement [Abstract]
Maximum amount of payments receivable		120,000
Agreement Entered into in May 2015 [Member] \| Commercialization Milestones [Member]
Collaborative Arrangement and Licensing Agreement [Abstract]
Maximum amount of payments receivable		110,000
Bayer HealthCare [Member] \| Collaborations and Licensing Agreements [Member]
Collaborative Arrangement and Licensing Agreement [Abstract]
Revenue earned											93,400
Deferred revenue			6,700								$ 6,700
Bayer HealthCare [Member] \| Collaborations and Licensing Agreements [Member] \| Revenue [Member] \| Strategic Partner [Member]
Collaborative Arrangement and Licensing Agreement [Abstract]
Concentration percentage											33.00%
Bayer HealthCare [Member] \| Agreement Entered into in May 2015 [Member]
Collaborative Arrangement and Licensing Agreement [Abstract]
Near-term payments		$ 155,000
Upfront fee received					100,000
Next potential milestone			$ 55,000								$ 55,000
Revenue earned	$ 91,200
Bayer HealthCare [Member] \| Agreement Entered into in May 2015 [Member] \| Minimum [Member]
Collaborative Arrangement and Licensing Agreement [Abstract]
Percentage of gross margins of sales received as royalties		20.00%
Bayer HealthCare [Member] \| Agreement Entered into in May 2015 [Member] \| IONIS-FXI [Member]
Collaborative Arrangement and Licensing Agreement [Abstract]
Upfront fee recorded as deferred revenue	$ 8,800				$ 4,300