Summary of Significant Accounting Policies Receivables (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Dec. 31, 2023
Credit Loss [Abstract]
Accounts Receivable, Credit Loss Expense (Reversal)	$ 0.6
Allowance for Loan and Lease Losses, Write-offs	0.8
Accounts Receivable, Allowance for Credit Loss	$ 12.6	$ 12.8