Note 1. Summary of Significant Accounting Policies Warranties (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Product Warranty Liability [Line Items]
Warranty costs incurred	$ (7.4)	$ (2.0)	$ (3.4)
Warranty originations and revisions	0.1	6.0	4.1
Warranty expirations	(0.9)	(0.2)	0.0
Standard Product Warranty Accrual	$ 3.1	$ 11.3	$ 7.5	$ 6.8
Minimum [Member]
Product Warranty Liability [Line Items]
Product Warranty Period	1 year
Maximum [Member]
Product Warranty Liability [Line Items]
Product Warranty Period	5 years