Retirement and Deferred Compensation Plans - Schedule of Changes in Fair Value of Pension Assets Measured Using Level 3 Inputs (Details) - Pension Plan [Member] - Fair Value, Inputs, Level 3 [Member] - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets, beginning of year	$ 142.2	$ 206.5
Actual return on plan assets	5.6	(61.2)
Purchases, sales and settlements, net	(0.7)	7.4
Currency exchange rate changes	7.2	(10.5)
Fair value of plan assets, end of year	$ 154.3	$ 142.2