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Summary of Activity in Restructuring Reserves (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Nov. 30, 2019 | Nov. 30, 2018 | Nov. 30, 2019 | Nov. 30, 2018
Restructuring Cost And Reserve [Line Items] |  |  |  |
Additions charged to expense | $ 4,801 | $ 7,724 | $ 11,423 | $ 27,800
2020 MAP to Growth |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Beginning balance | 12,376 | 16,324 | 12,694 | 17,514
Additions charged to expense | 4,801 | 7,724 | 11,423 | 27,800
Cash payments charged against reserve | (7,125) | (7,343) | (13,136) | (20,336)
Non-cash charges included above | (406) | (3,743) | (1,335) | (12,016)
Ending balance | 9,646 | 12,962 | 9,646 | 12,962
2020 MAP to Growth | Severance and Benefit Costs |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Beginning balance | 2,946 | 10,960 | 4,837 | 9,957
Additions charged to expense | 2,729 | 6,533 | 6,515 | 25,595
Cash payments charged against reserve | (2,109) | (6,013) | (7,786) | (18,588)
Non-cash charges included above |  | (1,053) |  | (6,537)
Ending balance | 3,566 | 10,427 | 3,566 | 10,427
2020 MAP to Growth | Facility Closure and Other Related Costs |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Beginning balance | 9,430 | 5,364 | 7,857 | 6,184
Additions charged to expense | 1,821 | 1,037 | 4,593 | 1,473
Cash payments charged against reserve | (5,016) | (1,330) | (5,350) | (1,748)
Non-cash charges included above | (155) | (2,536) | (1,020) | (3,374)
Ending balance | 6,080 | 2,535 | 6,080 | 2,535
2020 MAP to Growth | Other Asset Write-offs |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |
Beginning balance |  |  |  | 1,373
Additions charged to expense | 251 | 154 | 315 | 732
Non-cash charges included above | $ (251) | $ (154) | $ (315) | $ (2,105)

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