Organization and Significant Accounting Policies - Fair Value Measurements (Detail) - Fair value, measurements, recurring - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Non-qualified deferred compensation assets | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Non-qualified deferred compensation assets	$ 46.7	$ 39.8
Deferred Compensation Liability, Current and Noncurrent	46.7	39.8
Interest rate contracts, net | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	(0.9)	(5.9)
Derivative Liability	1.3
Foreign exchange contracts, net | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative Asset	$ 4.6	$ 8.4