Leases - Summary of Lease Assets and Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Assets
Operating lease assets	$ 214.7	$ 229.3
Finance lease assets	$ 6.2	$ 3.2
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other assets	Other assets
Total lease assets	$ 220.9	$ 232.5
Liabilities
Operating lease liabilities	229.9	246.6
Finance lease liabilities	$ 5.7	$ 3.1
Finance Lease, Liability, Statement of Financial Position [Extensible List]	Notes and contracts payable	Notes and contracts payable
Total lease liabilities	$ 235.6	$ 249.7