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Stockholders’ Deficit - Co-Founder Grant (Narrative) (Details) - USD ($) shares in Millions	1 Months Ended	3 Months Ended
	Dec. 31, 2017	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Allocated share-based compensation expense		$ 67,100,000	$ 78,000,000.0
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)		0.9
Awards vesting (in shares)		0.0
Co-Founder Grant | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expiration period	10 years
Trading period	30 days
Allocated share-based compensation expense		$ 0	$ 1,100,000
Co-Founder Grant | Chief Executive Officer | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted (in shares)	10.3
Awards vesting (in shares)				2.1

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