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Restructuring - Additional Information (Detail) - 2020 MAP to Growth - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
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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

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