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Net Income (Loss) per Share (Narrative) (Details) - USD ($) $ in Millions		3 Months Ended
	May 11, 2026	Mar. 31, 2026	Mar. 31, 2025	May 08, 2026	Dec. 31, 2025	Jun. 30, 2024
Class A Common Stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Amount authorized under stock repurchase program		$ 1,500.0
Number of shares repurchased (in shares)		0
Available for repurchase under the stock repurchase program		$ 117.4
Class A Common Stock \| Forecast
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Number of shares repurchased (in shares)	2,700,000
Purchase of treasury stock	$ 30.0
Class A Common Stock \| Subsequent Event
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Amount authorized under stock repurchase program				$ 30.0
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from EPS (in shares)		5,900,000	1,200,000
Convertible Debt Securities
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from EPS (in shares)		11,300,000
4.25% Convertible Senior Notes due 2029 \| Convertible Debt
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Interest rate		4.25%			4.25%	4.25%