Inventories (Details) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020
Components of inventories
Finished goods	$ 264.1	$ 280.1
Work in process	9.6	6.5
Raw materials and parts	254.7	207.8
Subtotal	528.4	494.4
Excess of current cost over last-in, first-out cost	(67.4)	(55.0)
Total inventories, net	$ 461.0	$ 439.4

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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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

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Amount by which inventory stated at last-in first-out (LIFO) is less than (in excess of) inventory stated at other inventory cost methods.

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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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