Restructuring - Additional Information (Detail) - 2020 MAP to Growth - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Feb. 28, 2019	Feb. 28, 2019
Restructuring Cost And Reserve [Line Items]
Restructuring plan, expected to be formulated		During the second quarter ended November 30, 2018
Decrease in current total expected costs		$ 10.9
Restructuring plan, anticipated to be completed		by the end of calendar year 2020
Industrial Segment \| Cost of Sales
Restructuring Cost And Reserve [Line Items]
Inventory-related charges	$ 1.1	$ 8.2
Consumer Segment \| Cost of Sales
Restructuring Cost And Reserve [Line Items]
Inventory-related charges	$ 0.8	2.1
Inventory-related charges, favorable adjustment		$ 0.2

Amount of loss from reductions in inventory due to subsequent measurement adjustments, including, but not limited to, physical deterioration, obsolescence, or changes in price levels.

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