Hedging Activities, Derivative Instruments and Fair Value Measurements - Fair Value Measurements (Details) - Recurring - USD ($) $ in Millions	Mar. 31, 2022	Dec. 31, 2021
Financial Assets
Foreign currency forwards	$ 0.1	$ 0.0
Trading securities held in deferred compensation plan	12.9	12.0
Total	13.0	12.0
Financial Liabilities
Foreign currency forwards	0.0	0.2
Deferred compensation plans	21.5	22.4
Total	21.5	22.6
Level 1
Financial Assets
Foreign currency forwards	0.0	0.0
Trading securities held in deferred compensation plan	12.9	12.0
Total	12.9	12.0
Financial Liabilities
Foreign currency forwards	0.0	0.0
Deferred compensation plans	21.5	22.4
Total	21.5	22.4
Level 2
Financial Assets
Foreign currency forwards	0.1	0.0
Trading securities held in deferred compensation plan	0.0	0.0
Total	0.1	0.0
Financial Liabilities
Foreign currency forwards	0.0	0.2
Deferred compensation plans	0.0	0.0
Total	0.0	0.2
Level 3
Financial Assets
Foreign currency forwards	0.0	0.0
Trading securities held in deferred compensation plan	0.0	0.0
Total	0.0	0.0
Financial Liabilities
Foreign currency forwards	0.0	0.0
Deferred compensation plans	0.0	0.0
Total	$ 0.0	$ 0.0