Summary of Significant Accounting Policies (Accounts Receivables) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Accounting Policies [Abstract]
Accounts Receivable, before Allowance for Credit Loss	$ 167.6	$ 154.1
Accounts Receivable, Allowance for Credit Loss, Current	(1.4)	(1.4)
Unbilled Receivables, Current	9.1	7.2
Income Taxes Receivable, Current	10.6	6.1
Other Receivables, Net, Current	2.9	1.4
Receivables, net of allowance for current expected credit losses of $1.4 at December 31, 2022 and 2021	$ 188.8	$ 167.4

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Amount, before allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business.

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Amount of allowance for credit loss on accounts receivable, classified as current.

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Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.

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Amount, after allowance, of receivables classified as other, due within one year or the operating cycle, if longer.

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The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

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Amount received for services rendered and products shipped, but not yet billed, for non-contractual agreements due within one year or the normal operating cycle, if longer.

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