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Other Consolidated Financial Statement (Details Textual) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
	Sep. 26, 2023	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Net gains recognized on the increase in fair value of equity securities		$ (28.2)	$ 297.6	$ 27.3	$ 268.3
Net gains (losses) realized during the period on equity securities		(10.9)	4.4	(5.4)	5.3
Other long-term liabilities		744.1		744.1		$ 781.1
Accrued income taxes		162.0		162.0		$ 403.2
Reata Pharmaceuticals, Inc
Total transaction value	$ 6,602.9
Ionis, Sangamo, Denali and Sage
Net gains recognized on the increase in fair value of equity securities		53.3	$ 295.6	90.2	$ 265.0
Sangamo
Net gains recognized on the increase in fair value of equity securities		$ 22.7		$ 70.1