Commitments and Contingencies Marshalltown Tornado and Recovery (Details) - USD ($) $ in Millions	12 Months Ended			18 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Insurance recoveries received for property damage incurred from natural disaster	$ 0.0	$ 0.0	$ 79.6
Loss(gain) from natural disaster, net of Insurance recoveries	0.0	(3.1)	178.8
Insurance Recoveries	6.6	0.0	243.2	$ 367.5
Loss Contingencies [Line Items]
Loss(gain) from natural disaster, net of Insurance recoveries	0.0	3.1	(178.8)
Insurance recoveries received	6.6	0.0	243.2	$ 367.5
Insurance recoveries received for property damage incurred from natural disaster	0.0	0.0	79.6
Marshalltown Tornado [Member]
Commitments and Contingencies Disclosure [Abstract]
Insurance recoveries received for property damage incurred from natural disaster	3.0	(79.6)
Loss(gain) from natural disaster, net of Insurance recoveries	0.0	(3.0)	178.8
Insurance Recoveries	0.0	243.2
Factory inefficiencies	0.0	9.3
Gain from insurance recoveries, net of losses incurred	3.0	(178.8)
Insurance proceeds for lost profits	0.0	(99.2)
Loss Contingencies [Line Items]
Loss(gain) from natural disaster, net of Insurance recoveries	0.0	3.0	(178.8)
Insurance recoveries received	0.0	243.2
Factory inefficiencies	0.0	9.3
Gain from insurance recoveries, net of losses incurred	3.0	(178.8)
Insurance proceeds for lost profits	0.0	(99.2)
Insurance recoveries received for property damage incurred from natural disaster	3.0	(79.6)
Site clean-up and remediation	0.0	20.4
Other Nonrecurring Expense	3.0	34.7
Total expense due to natural disaster	3.0	64.4
Marshalltown Wind Storm [Member]
Commitments and Contingencies Disclosure [Abstract]
Loss(gain) from natural disaster, net of Insurance recoveries	0.0	(0.1)	0.0
Insurance Recoveries	6.6	6.6
Write-off of inventory		0.1
Building And Building Improvement		3.0
Factory inefficiencies		0.2
Loss Contingencies [Line Items]
Loss(gain) from natural disaster, net of Insurance recoveries	0.0	0.1	$ 0.0
Insurance recoveries received	$ 6.6	6.6
Write-off of inventory		0.1
Building And Building Improvement		3.0
Factory inefficiencies		0.2
Site clean-up and remediation		1.7
Other Nonrecurring Expense		1.7
Total expense due to natural disaster		$ 6.7