Variable Interest Entity - Summary of Assets and Liabilities (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023	Mar. 31, 2023
Assets:
Cash and cash equivalents	$ 412.5	$ 432.2	$ 433.3
DomaniRx LLC [Member]
Assets:
Cash and cash equivalents	95.1		100.2
Intangible assets	200.6		193.3
Other assets	2.3		3.2
Liabilities:
Other liabilities	$ 3.3		$ 3.9