Leases - Summary of Supplemental Balance Sheet (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Leases
Operating lease assets	$ 75.9	$ 107.5
Finance lease assets	2.4	2.8
Total leased assets	78.3	110.3
Current operating lease liabilities	34.9	70.7
Current finance lease liabilities	1.0	0.9
Non-current operating lease liabilities	41.3	37.1
Non-current finance lease liabilities	2.0	2.5
Total lease liabilities	79.2	111.2
Finance lease, accumulated amortization	$ 4.7	$ 4.1