Description of Business and Basis of Preparation (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Reclassification of foreign exchange gain (loss)	$ 1.0	$ (0.8)
Auction Proceeds Payable
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Reclassification of liabilities	23.3
Operating Lease Right of-Use Assets
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Reclassification of assets	123.0
Operating Lease Liabilities Current
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Reclassification of assets	12.7
Operating Lease Liabilities Non-Current
Organization, Consolidation and Presentation of Financial Statements [Line Items]
Reclassification of assets	$ 111.9