Note 1. Summary of Significant Accounting Policies Financial Instruments (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022
Concentration Risk [Line Items]
Accounts Receivable, Credit Loss Expense (Reversal)	$ 3.1
Accounts Receivable, Allowance for Credit Loss, Recovery	0.6
Accounts Receivable, Allowance for Credit Loss, Writeoff	0.3
Loans and Leases Receivable, Allowance	$ 12.8	$ 10.6

Amount of increase in allowance for credit loss on accounts receivable, from recovery.

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Amount of direct write-downs of accounts receivable charged against the allowance.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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