Real Estate - Additional Information (Detail) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Real Estate [Abstract]
Operating lease right-of-use assets	$ 720.3	$ 683.7
Operating Lease, Right-of-Use Asset, Statement of Financial Position [Extensible List]	Other assets	Other assets
Lease liabilities	$ 624.2	$ 597.6
Operating Lease, Liability, Statement of Financial Position [Extensible List]	Other liabilities	Other liabilities
Outstanding performance and surety bonds and standby letters of credit	$ 594.9	$ 498.5