Income Taxes - Additional Information (Details) - USD ($) $ in Millions		9 Months Ended
	May 20, 2024	Sep. 30, 2024	Sep. 30, 2025	Dec. 31, 2024
Business Combination [Line Items]
Net unrecognized tax benefits which would affect the tax rate if recognized			$ 421.6	$ 341.4
Alpine Immune Sciences Inc
Business Combination [Line Items]
Acquired in-process research and development expenses	$ 4,423.2	$ 4,400.0