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v3.20.2

Changes in Benefits Obligations and Plan Assets, Pension (Detail) - Pension Benefits - USD ($) $ in Thousands | 1 Months Ended | 12 Months Ended
--- | --- | ---
Feb. 29, 2020 | May 31, 2020 | May 31, 2019 | May 31, 2018
U.S. Plans |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Benefit obligation at beginning of year |  | $ 660,277 | $ 617,255 |
Service cost |  | 39,425 | 37,528 | $ 37,859
Interest cost |  | 20,415 | 21,987 | 17,518
Benefits paid |  | (41,186) | (45,917) |
Plan amendments |  |  | 11 |
Actuarial losses |  | 83,808 | 29,413 |
Benefit Obligation at End of Year |  | 762,739 | 660,277 | 617,255
Balance at Beginning of Period |  | 496,865 | 487,233 |
Actual return on plan assets |  | 8,689 | (2,272) |
Employer contributions | $ 51,500 | 52,182 | 57,821 |
Benefits paid |  | (41,186) | (45,917) |
Balance at End of Period |  | 516,550 | 496,865 | 487,233
(Deficit) of plan assets versus benefit obligations at end of year |  | (246,189) | (163,412) |
Net Amount Recognized |  | (246,189) | (163,412) |
Accumulated Benefit Obligation |  | 662,197 | 553,392 |
Non-U.S. Plans |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Benefit obligation at beginning of year |  | 205,967 | 194,149 |
Service cost |  | 5,400 | 4,693 | 4,620
Interest cost |  | 4,842 | 5,420 | 5,025
Benefits paid |  | (6,269) | (7,488) |
Participant contributions |  | 1,106 | 1,003 |
Plan amendments |  | (893) | (33) |
Plan combination |  | 922 |  |
Plan settlements/curtailments |  | (288) | (607) |
Actuarial losses |  | 2,718 | 17,286 |
Premiums paid |  | (99) | (97) |
Currency exchange rate changes |  | (3,128) | (8,359) |
Benefit Obligation at End of Year |  | 210,278 | 205,967 | 194,149
Balance at Beginning of Period |  | 187,112 | 188,960 |
Actual return on plan assets |  | 9,899 | 6,737 |
Employer contributions |  | 6,331 | 6,770 |
Participant contributions |  | 1,106 | 1,003 |
Benefits paid |  | (6,269) | (7,488) |
Plan combination |  | 182 |  |
Premiums paid |  | (99) | (97) |
Plan settlements/curtailments |  | (281) | (580) |
Currency exchange rate changes |  | (3,107) | (8,193) |
Balance at End of Period |  | 194,874 | 187,112 | $ 188,960
(Deficit) of plan assets versus benefit obligations at end of year |  | (15,404) | (18,855) |
Net Amount Recognized |  | (15,404) | (18,855) |
Accumulated Benefit Obligation |  | $ 197,167 | $ 192,533 |

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