Inventories (Details) - USD ($) $ in Millions	Aug. 31, 2019	Nov. 30, 2018
Inventory Disclosure [Abstract]
LIFO inventory amount	$ 48.2	$ 47.6
Percentage of LIFO inventory	47.90%	45.90%
Raw materials and supplies	$ 35.3	$ 35.0
Work-in-process	5.2	5.3
Finished goods	60.1	63.5
Inventories, gross	100.6	103.8
LIFO reserve	(15.4)	(18.1)
Obsolescence reserve	(6.6)	(6.9)
Inventories, net	$ 78.6	$ 78.8

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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 of valuation reserve for inventory.

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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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The amount of LIFO (last in first out) inventory present at the reporting date when inventory is also valued using different valuation methods.

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The percentage of LIFO (last in first out) inventory to total inventory as of the balance sheet date if other than 100 percent.

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