Restatement Of Previously Issued Financial Statements (Schedule Of Statements of Cash Flow Statement) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Net earnings	$ 214.5	$ 185.9	$ 119.6
Loss from disposal of discontinued operations before income tax	(31.2)	(19.3)	(109.3)
As Reported [Member]
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Net earnings			154.8
Loss from disposal of discontinued operations before income tax			(74.1)
Restated [Member]
Error Corrections And Prior Period Adjustments Restatement [Line Items]
Net earnings	$ 214.5	$ 185.9	119.6
Loss from disposal of discontinued operations before income tax			$ (109.3)