Stock-Based Compensation - Performance-based Awards (Details) - USD ($) $ in Thousands, shares in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense	$ 90,637	$ 70,644	$ 261,822	$ 202,502
Performance-based awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Awards granted (in shares)			0.4	0.8
Aggregate value	64,900	55,000	$ 64,900	$ 55,000
Stock-based compensation, milestones as a percentage of grant value			200.00%
Expected compensation expense recognition over requisite service period			$ 151,900
Stock-based compensation expense	$ 25,500	$ 74,000	$ 23,700	$ 66,500
Target (percentage)					100.00%
Performance-based awards | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target (percentage)			0.00%
Performance-based awards | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Target (percentage)			200.00%