Income Taxes - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Income Taxes
Income tax expense	$ 0.0	$ 0.0	$ 0.0	$ 0.0
Uncertain tax positions	$ 0.1		$ 0.1		$ 0.1