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License Agreements - MorphoSys (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($) shares	Jun. 30, 2022 USD ($)	Jun. 30, 2023 USD ($) shares	Jun. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)	Jan. 31, 2020 USD ($)
License Agreements
Unrealized gain (loss) on long term investments	$ 41,811	$ (24,897)	$ 36,493	$ (71,482)
(Profit) and loss sharing under collaboration agreements	(549)	2,544	(1,911)	7,286
Research and development expense	$ 400,750	347,196	$ 807,391	700,569
MorphoSys AG
License Agreements
Common stock held from investment (in shares) | shares	3,600,000		3,600,000
Share conversion	0.25		0.25
Fair market value of our long term investments	$ 27,100		$ 27,100		$ 13,000
Unrealized gain (loss) on long term investments	12,700	(7,100)	14,100	(16,700)
MorphoSys AG
License Agreements
Research and development expense	20,300	27,500	45,500	48,500
Accrued and other liabilities	39,300		$ 39,300		$ 28,500
MorphoSys AG | UNITED STATES
License Agreements
Profit (loss) sharing ratio			50.00%
MorphoSys AG | UNITED STATES | Tafasitamab Product and Service
License Agreements
(Profit) and loss sharing under collaboration agreements	$ (500)	$ 2,500	$ (1,900)	$ 7,300
MorphoSys AG | Development and Regulatory Milestones
License Agreements
Milestone payment made under license agreement			$ 2,500
MorphoSys AG | Development and Regulatory Milestones | Maximum
License Agreements
Additional milestone payments under the license agreement						$ 737,500
MorphoSys AG | Commercialization Milestones | Maximum
License Agreements
Additional milestone payments under the license agreement						$ 315,000
MorphoSys AG | MorphoSys AG
License Agreements
Funding of future development costs (as a percent)			45.00%
MorphoSys AG | Incyte
License Agreements
Funding of future development costs (as a percent)			55.00%

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