Leases - Lease Cost (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Lease Cost
Operating Lease Cost	$ 3.8	$ 5.8	$ 7.9	$ 11.4
Variable Lease, Cost	2.1	0.0	2.2	0.1
Short-Term Lease Cost	0.8	1.0	0.8	2.2
Total Lease Expense	6.7	6.8	10.9	13.7
Less: Sublease Income	0.0	0.0	0.0	0.1
Lease, Cost	$ 6.7	$ 6.8	$ 10.9	$ 13.6