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Discontinued Operations (AS&O Business Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2021
Dec. 31, 2019
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Proceeds from sale of discontinued operations, gross   $ 4.8
Discontinued Operations, Held-for-sale | AS&O Product Line    
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]    
Discontinued operation, gain (loss) on disposal of discontinued operation, net of tax $ 4.9