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Summary of Activity in Restructuring Reserves (Detail) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Aug. 31, 2019 | Aug. 31, 2018
Restructuring Cost And Reserve [Line Items] |  |
Additions charged to expense | $ 6,622 | $ 20,076
2020 MAP to Growth |  |
Restructuring Cost And Reserve [Line Items] |  |
Beginning balance | 12,694 | 17,514
Additions charged to expense | 6,622 | 20,076
Cash payments charged against reserve | (6,011) | (12,993)
Non-cash charges included above | (929) | (8,273)
Ending balance | 12,376 | 16,324
2020 MAP to Growth | Severance and Benefit Costs |  |
Restructuring Cost And Reserve [Line Items] |  |
Beginning balance | 4,837 | 9,957
Additions charged to expense | 3,786 | 19,062
Cash payments charged against reserve | (5,677) | (12,575)
Non-cash charges included above |  | (5,484)
Ending balance | 2,946 | 10,960
2020 MAP to Growth | Facility Closure and Other Related Costs |  |
Restructuring Cost And Reserve [Line Items] |  |
Beginning balance | 7,857 | 6,184
Additions charged to expense | 2,772 | 436
Cash payments charged against reserve | (334) | (418)
Non-cash charges included above | (865) | (838)
Ending balance | 9,430 | 5,364
2020 MAP to Growth | Other Asset Write-offs |  |
Restructuring Cost And Reserve [Line Items] |  |
Beginning balance |  | 1,373
Additions charged to expense | 64 | 578
Non-cash charges included above | $ (64) | $ (1,951)

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