Summary of Significant Accounting Policies - Investments (Details) - USD ($) $ in Millions	3 Months Ended
Jun. 30, 2024	Mar. 31, 2024
Accounting Policies [Abstract]
Equity method investment impairments	$ 1.1	$ 3.3
Cost method investments, book value	0.0
Investments	$ 0.0

Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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+ Details