Fair Value of Assets and Liabilities - Narrative (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Fair value transfers between levels amount	$ 0.0	$ 0.0
Long-term debt, carrying value	1,065.5		$ 1,253.9
Long-term debt, fair value	$ 1,110.4		$ 1,285.5