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Summary of Charges Recorded in Connection with Restructuring by Reportable Segment (Parenthetical) (Detail) - MAP to Growth - Severance and Benefit Costs - Position | 3 Months Ended | 6 Months Ended
--- | --- | ---
Nov. 30, 2020 | Nov. 30, 2019 | Nov. 30, 2020 | Nov. 30, 2019
Construction Products Segment |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Number of positions eliminated | 12 | 25 | 21 | 46
Specialty Products Group ("SPG") Segment |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Number of positions eliminated | 1 | 49 | 24 | 59
Number of positions not eliminated | 5 |  |  |
Performance Coatings Segment |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Number of positions eliminated | 11 | 18 | 50 | 69
Consumer Segment |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Number of positions eliminated |  | 9 | 3 | 11

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- Definition Restructuring and related cost number of positions not eliminated due to reversal of severance accruals. + References No definition available. + Details
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- Definition The number of positions eliminated during the period as a result of restructuring activities. + References No definition available. + Details
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