Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets:
Net operating losses, tax credits and other carryforwards	$ 2,571.1	$ 2,516.0
Deferred revenue	79.0	88.0
Unrealized gains and losses	4.6	9.4
Accrued expenses	2.9	16.0
Other future deductible amounts	0.0	0.1
Deferred tax assets	2,657.6	2,629.5
Valuation allowance	(2,204.8)	(2,115.8)	$ (1,942.5)	$ (1,780.4)
Deferred tax assets, net of valuation allowance	452.8	513.7
Deferred tax liabilities:
Investments	(158.6)	(122.6)
Intangible assets, net	(339.7)	(630.3)
Property and equipment, net	(161.0)	(208.1)
Un-remitted foreign earnings	(0.6)	0.0
Other future taxable amounts	(0.5)	0.0
Deferred tax liabilities	(660.4)	(961.0)
Net deferred tax liability	$ (207.6)	$ (447.3)

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Deferred Tax Assets, Unrealized Gains and Losses

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