Leases - Lease Cost (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Components of lease cost
Amortization of right-of-use assets		$ 4.1	$ 3.3	$ 1.5
Interest on lease liabilities		1.0	0.6	0.1
Total finance lease cost		5.1	3.9	1.6
Operating lease cost		31.4	20.4	24.0
Short term lease cost		4.4	5.6	4.2
Variable lease cost		6.2	5.0	3.0
Impairment expense	[1]	3.2
Sublease income		(2.0)	(1.7)	(2.0)
Total lease cost		$ 48.3	$ 33.2	$ 30.8

[1] Impairment charge recognized in 2023 is associated with the restructuring of PhenomeX. See Note, 21 Other Charges, Net