Ratio of sharing profit and losses under the collaboration agreement.

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The expense recognized during the reporting period for collaboration loss sharing.

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Adjustment to the amount of discount used to measure fair value for lack of ability to convert business interests into cash quickly..

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Represents the additional milestone payments to be made under the license agreement.

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Represents the percentage of future global development costs funded under the license agreement.

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No definition available.

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Represents the amount of the upfront payment made under the license agreement.

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Represents the percentage of associated future global development costs from the initiation of a Phase IIb trial provided the entity elects to co-develop any compounds and/or indications.

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No definition available.

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Represents the period of time that the company will not sell or otherwise transfer any of the equity method shares.

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Amount of expenses incurred but not yet paid nor invoiced, and liabilities classified as other.

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Fair value of the entity's equity.

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This element represents the aggregate cost of investments accounted for under the equity method of accounting.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle).

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The aggregate costs incurred (1) in a planned search or critical investigation aimed at discovery of new knowledge with the hope that such knowledge will be useful in developing a new product or service, a new process or technique, or in bringing about a significant improvement to an existing product or process; or (2) to translate research findings or other knowledge into a plan or design for a new product or process or for a significant improvement to an existing product or process whether intended for sale or the entity's use, during the reporting period charged to research and development projects, including the costs of developing computer software up to the point in time of achieving technological feasibility, and costs allocated in accounting for a business combination to in-process projects deemed to have no alternative future use.

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Price of a single share of a number of saleable stocks of a company.

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License Agreements - MorphoSys (Details) - USD ($) $ / shares in Units, $ in Thousands		1 Months Ended		12 Months Ended
	Mar. 03, 2020	Jan. 31, 2020	Mar. 31, 2019	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Long term investments				$ 222,301	$ 133,657
Research and development expense				2,215,942	1,154,111	$ 1,197,957
Unrealized gain (loss) on long term investments				10,426	$ 34,458	$ (44,093)
Collaboration loss sharing				42,801
ADSs
Equity Method Investment, Ownership Percentage		0.25%
Equity Method Investment, Aggregate Cost	$ 150,000	$ 150,000
Per share price	$ 27.65	$ 41.33
Lock-up period		18 months
Discount for lack of marketability	$ 4,900
Fair value of shares	95,500
Long term investments	95,500			$ 102,900
Research and development expense	$ 54,500
MorphoSys AG
Upfront payment under license agreement			$ 750,000
Equity Method Investment, Ownership Percentage				0.03%
Research and development expense				$ 88,200
Unrealized gain (loss) on long term investments				$ 7,400
Profit (loss) sharing ratio				50.00%
Collaboration loss sharing				$ 42,800
Associated future global development costs from the initiation of a Phase IIb trial, if elected to co-develop (as a percentage)				0.55%
Accrued and other liabilities				$ 54,200
MorphoSys AG \| Development and Regulatory Milestones \| Maximum
Additional milestone payments under the license agreement		$ 740,000
MorphoSys AG \| Sales and Commercial Milestones \| Maximum
Additional milestone payments under the license agreement		$ 315,000
MorphoSys AG \| MorphoSys AG
Funding of future development costs (as a percent)				0.45%
MorphoSys AG \| Incyte
Funding of future development costs (as a percent)				0.55%