Restructuring, Business Transformation and Other Cost Saving Initiatives - Narrative (Details) $ in Millions		3 Months Ended
	Sep. 26, 2023 USD ($)	Mar. 31, 2025 USD ($) Employee	Mar. 31, 2024 USD ($)	Sep. 30, 2023 ft²	Jul. 31, 2023 USD ($)
Reata Pharmaceuticals, Inc
Restructuring Cost and Reserve [Line Items]
Operating lease area | ft²				327,400
Lease term				16 years
Minimum
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining					$ 300.0
Maximum
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining					$ 310.0
2023 Cost Saving Initiatives
Restructuring Cost and Reserve [Line Items]
Expected operating expense reduction	$ 1,000.0
Expected number of positions eliminated | Employee		1,400
Severance Costs		$ 35.3	$ 9.3
2023 Cost Saving Initiatives | Restructuring charges
Restructuring Cost and Reserve [Line Items]
Severance Costs		35.3	9.3
Reata Integration
Restructuring Cost and Reserve [Line Items]
Severance Costs		(0.2)	2.2
Reata Integration | Minimum
Restructuring Cost and Reserve [Line Items]
Expected cost		35.0
Reata Integration | Restructuring charges
Restructuring Cost and Reserve [Line Items]
Severance Costs		$ (0.2)	$ 2.2