Commitments and Contingencies - Narratives (Details) $ in Millions	12 Months Ended
	Dec. 31, 2023 USD ($) property	Dec. 31, 2022 USD ($)
Loss Contingencies
Number of properties (property) | property	1
Accrued environmental reserve	$ 0.0	$ 0.0
Loss contingency accrual	0.0	305.6
Insurance receivable	0.0	234.4
Pacific Fertility Center
Loss Contingencies
Loss contingency accrual		305.6
Insurance receivable		$ 231.9
Losses recognized	$ 73.0