Inventories (Narrative) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Inventories [Line Items]
Inventories stated on the LIFO basis	$ 25.3	$ 18.8
Inventories stated value below replacement costs	15.6	27.5
Weighted Average Cost Inventory Amount	62.9	30.9
FIFO Inventory Amount	$ 39.5	$ 38.9