Fair Value Measurements - Recurring Fair Value Measurements (Details) - Level 1 - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Fair Value Measurements
Restricted Cash Held in Trust	$ 331.8	$ 315.5
Short-Term Investments	7.6	12.7
Common share warrants
Fair Value Measurements
Warrants, at fair value	$ 9.0	$ 25.9

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