Critical Accounting Policies and Estimates - Additional Information (Details) - USD ($) $ in Millions	Nov. 30, 2019	Jun. 01, 2019
Accounting Policies [Abstract]
Finished goods	$ 50.3	$ 47.2
Raw material	3.8	4.2
Work in progress	2.1	1.8
Inventory valuation reserves	$ 4.7	$ 4.6

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

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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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