Debt (Schedule Of Debt) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Principal debt outstanding	$ 655.0	$ 633.7
Unamortized debt financing costs	(3.9)	(2.3)
Current installments of long-term debt	0.0	25.0
Long-term debt, less current installments	651.1	606.4
Revolving Credit Facility Due 2027 [Member]
Debt Instrument [Line Items]
Principal debt outstanding	205.0	0.0
Revolving Credit Facility Due 2024 [Member]
Debt Instrument [Line Items]
Principal debt outstanding	0.0	165.0
Term Loan A Due 2027 [Member]
Debt Instrument [Line Items]
Principal debt outstanding	450.0	0.0
Term Loan A Due 2024 [Member]
Debt Instrument [Line Items]
Principal debt outstanding	0.0	468.7
Long-term Debt [Member]
Debt Instrument [Line Items]
Long-term debt	651.1	631.4
Short-term Debt [Member]
Debt Instrument [Line Items]
Current installments of long-term debt	0.0	25.0
Long-Term Debt, Less Current Portion [Member]
Debt Instrument [Line Items]
Long-term debt, less current installments	$ 651.1	$ 606.4

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Amount, excluding unamortized premium (discount) and debt issuance cost, of long-term debt. Excludes lease obligation.

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