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Summary of Charges Recorded in Connection with Restructuring by Reportable Segment (Parenthetical) (Detail) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Nov. 30, 2019 USD ($) Position | Nov. 30, 2018 USD ($) Position | Nov. 30, 2019 USD ($) Position | Nov. 30, 2018 USD ($) Position Executive
Restructuring Cost And Reserve [Line Items] |  |  |  |
Restructuring Charges | $ 4,801 | $ 7,724 | $ 11,423 | $ 27,800
2020 MAP to Growth |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Restructuring Charges | 4,801 | 7,724 | 11,423 | 27,800
2020 MAP to Growth | Severance and Benefit Costs |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Restructuring Charges | $ 2,729 | $ 6,533 | $ 6,515 | $ 25,595
Construction Products Group ("CPG") Segment | 2020 MAP to Growth Related to Current Elimination | Severance and Benefit Costs |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Number of positions eliminated | Position | 25 | 37 | 46 | 68
Construction Products Group ("CPG") Segment | 2020 MAP to Growth Plan Related to Legal Function |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Number of positions eliminated | Position |  |  |  | 1
Restructuring Charges |  |  |  | $ 200
Construction Products Group ("CPG") Segment | 2020 MAP to Growth |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Restructuring Charges | $ 1,596 | $ 3,961 | $ 2,444 | 6,758
Construction Products Group ("CPG") Segment | 2020 MAP to Growth | Severance and Benefit Costs |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Restructuring Charges | $ 1,447 | 3,574 | $ 1,607 | $ 5,993
Construction Products Group ("CPG") Segment | 2020 MAP to Growth | Construction Segment Executives |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Number of corporate executives | Executive |  |  |  | 3
Performance Coatings Group ("PCG") Segment | 2020 MAP to Growth Related to Current Elimination | Severance and Benefit Costs |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Number of positions eliminated | Position | 18 |  | 69 |
Performance Coatings Group ("PCG") Segment | 2020 MAP to Growth |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Restructuring Charges | $ 1,239 | 993 | $ 3,848 | $ 6,034
Performance Coatings Group ("PCG") Segment | 2020 MAP to Growth | Severance and Benefit Costs |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Restructuring Charges | $ 431 | 364 | $ 2,931 | $ 4,769
Consumer Group ("Consumer") Segment | 2020 MAP to Growth Related to Current Elimination | Severance and Benefit Costs |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Number of positions eliminated | Position | 9 |  | 11 |
Consumer Group ("Consumer") Segment | 2020 MAP to Growth |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Number of positions eliminated | Position |  |  |  | 9
Restructuring Charges | $ 1,124 | 181 | $ 2,407 | $ 1,200
Consumer Group ("Consumer") Segment | 2020 MAP to Growth | Severance and Benefit Costs |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Restructuring Charges | $ 780 | $ 76 | $ 1,547 | $ 1,095
Specialty Segment | 2020 MAP to Growth Related to Current Elimination | Severance and Benefit Costs |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Number of positions eliminated | Position | 49 |  | 59 |
Specialty Segment | 2020 MAP to Growth |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Number of positions eliminated | Position |  | 95 |  | 120
Restructuring Charges | $ 819 | $ 1,528 | $ 2,708 | $ 3,748
Specialty Segment | 2020 MAP to Growth | Severance and Benefit Costs |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Restructuring Charges | 48 | $ 1,458 | 414 | $ 3,678
Specialty Segment | 2020 MAP to Growth | Specialty Segment |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Number of corporate executives | Executive |  |  |  | 4
Performance Coatings Group ("PCG") Segment | 2020 MAP to Growth |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Number of positions eliminated | Position |  | 17 |  | 102
Corporate/Other Segment | 2020 MAP to Growth |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Restructuring Charges | 23 | $ 1,061 | 16 | $ 10,060
Corporate/Other Segment | 2020 MAP to Growth | Severance and Benefit Costs |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Restructuring Charges | $ 23 | $ 1,061 | $ 16 | $ 10,060
Number of corporate executives | Executive |  |  |  | 2
Corporate/Other Segment | 2020 MAP to Growth | Vesting Equity Awards |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Number of corporate executives | Executive |  |  |  | 2

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