Inventories (Components of Inventory) (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Components of inventory
Raw materials and supplies	$ 111.4	$ 93.8
Work-in-process	44.2	42.3
Finished goods	208.5	174.8
Inventories, net	$ 364.1	$ 310.9

Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Gross amount of unprocessed materials to be used in manufacturing or production process and supplies that will be consumed.

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Amount before valuation and LIFO reserves of merchandise or goods in the production process expected to be completed within one year or operating cycle, if longer.

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