Fair Value - Summary of the Level 3 Activity - (Details) - Pension Obligation [Member] $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($)
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Beginning balance	$ 4.7
Ending balance	4.0
SSB [Member]
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Benefits and other adjustments	$ (0.7)