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Restructuring - Additional Information (Detail) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Nov. 30, 2023 | Aug. 31, 2023 | Nov. 30, 2022 | Nov. 30, 2023 | Nov. 30, 2022
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Additions charged to expense |  | $ 1,239,000 |  | $ 1,272,000 | $ 7,737,000 | $ 2,626,000
MAP to Growth |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Restructuring costs |  | $ 0 |  | $ 1,200,000 | $ 0 | $ 2,600,000
Restructuring, Incurred Cost, Statement of Income or Comprehensive Income [Extensible Enumeration] |  | Additions charged to expense |  | Additions charged to expense | Additions charged to expense | Additions charged to expense
MAP 2025 |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Total expected costs increased, amount |  |  |  |  | $ 16,500,000 |
Additions charged to expense |  | $ 1,239,000 |  |  | 7,737,000 |
MAP 2025 | Performance Coatings Segment |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Additions charged to expense |  | 306,000 |  |  | 5,722,000 |
MAP 2025 | Severance and benefit charges |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Total expected costs increased, amount |  |  |  |  | 1,000,000 |
Additions charged to expense |  | 1,117,000 |  |  | 3,016,000 |
MAP 2025 | Severance and benefit charges | Performance Coatings Segment |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Additions charged to expense |  | 213,000 |  |  | 1,044,000 |
MAP 2025 | Facility Closure and Other Related Costs |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Total expected costs increased, amount |  |  |  |  | 15,500,000 |
Additions charged to expense |  | 122,000 |  |  | 166,000 |
MAP 2025 | Facility Closure and Other Related Costs | Performance Coatings Segment |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Additions charged to expense |  | 93,000 |  |  | 123,000 |
MAP 2025 | Other Restructuring Costs |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Additions charged to expense |  | 0 |  |  | 4,555,000 |
MAP 2025 | Other Restructuring Costs | Performance Coatings Segment |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Additions charged to expense | [1] | 0 |  |  | 4,555,000 |
MAP 2025 | Other Restructuring Costs | Performance Coatings Segment | Tradename |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Impairment of indefinite-lived assets |  | $ 0 | $ 3,300,000 |  | $ 3,300,000 |
USL Restructuring | Universal Sealants |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Loss on sale of Bridgecare services division |  |  | $ 4,500,000 |  |  |
[1] | Of the $4.6 million of other restructuring costs incurred for the six-month period ending November 30, 2023, $3.3 million is associated with the impairment of an indefinite-lived tradename described above.

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