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Receivables, net (Notes)
9 Months Ended
Sep. 30, 2023
Receivables, Net, Current [Abstract]  
Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Receivables
Receivables consist of:
September 30, 2023December 31, 2022
Trade accounts receivable$164.9 $167.6 
Allowance for current expected credit losses(1.5)(1.4)
Unbilled receivables4.0 9.1 
Taxes receivable2.6 10.6 
Other3.1 2.9 
$173.0 $188.8