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Pension Plans | 6 Months Ended
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Nov. 30, 2018
Compensation And Retirement Disclosure [Abstract] |
Pension Plans | NOTE 13 — PENSION PLANS We offer defined benefit pension plans, defined contribution pension plans, and various postretirement benefit plans. The following tables provide the retirement-related benefit plans’ impact on income before income taxes for the three and six months ended November 30, 2018 and 2017:
|  | U.S. Plans |  |  | Non-U.S. Plans |
|  | Three Months Ended |  |  | Three Months Ended |
|  | November 30, |  |  | November 30, |  |  | November 30, |  |  | November 30, |
Pension Benefits |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
(In thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 9,382 |  |  | $ | 9,465 |  |  | $ | 1,219 |  |  | $ | 1,175 |
Interest cost |  |  | 5,497 |  |  |  | 4,379 |  |  |  | 1,399 |  |  |  | 1,145 |
Expected return on plan assets |  |  | (8,467 | ) |  |  | (8,086 | ) |  |  | (2,051 | ) |  |  | (1,978 | )
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prior service cost (credit) |  |  | 29 |  |  |  | 29 |  |  |  | (8 | ) |  |  | (6 | )
Net actuarial losses recognized |  |  | 3,272 |  |  |  | 3,618 |  |  |  | 319 |  |  |  | 419 |
Net Periodic Benefit Cost |  | $ | 9,713 |  |  | $ | 9,405 |  |  | $ | 878 |  |  | $ | 755 |
|  | U.S. Plans |  |  | Non-U.S. Plans |
|  | Three Months Ended |  |  | Three Months Ended |
|  | November 30, |  |  | November 30, |  |  | November 30, |  |  | November 30, |
Postretirement Benefits |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
(In thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | - |  |  | $ | - |  |  | $ | 392 |  |  | $ | 311 |
Interest cost |  |  | 48 |  |  |  | 43 |  |  |  | 291 |  |  |  | 224 |
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prior service (credit) |  |  | (55 | ) |  |  | (55 | ) |  |  |  |  |  |  |  |
Net actuarial (gains) losses recognized |  |  | (6 | ) |  |  | 6 |  |  |  | 115 |  |  |  | 79 |
Net Periodic Benefit (Credit) Cost |  | $ | (13 | ) |  | $ | (6 | ) |  | $ | 798 |  |  | $ | 614 |
|  | U.S. Plans |  |  | Non-U.S. Plans |
|  | Six Months Ended |  |  | Six Months Ended |
|  | November 30, |  |  | November 30, |  |  | November 30, |  |  | November 30, |
Pension Benefits |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
(In thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | 18,764 |  |  | $ | 18,930 |  |  | $ | 2,438 |  |  | $ | 2,350 |
Interest cost |  |  | 10,994 |  |  |  | 8,758 |  |  |  | 2,798 |  |  |  | 2,290 |
Expected return on plan assets |  |  | (16,934 | ) |  |  | (16,172 | ) |  |  | (4,102 | ) |  |  | (3,956 | )
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prior service cost (credit) |  |  | 58 |  |  |  | 58 |  |  |  | (16 | ) |  |  | (12 | )
Net actuarial losses recognized |  |  | 6,544 |  |  |  | 7,236 |  |  |  | 638 |  |  |  | 838 |
Net Periodic Benefit Cost |  | $ | 19,426 |  |  | $ | 18,810 |  |  | $ | 1,756 |  |  | $ | 1,510 |
|  | U.S. Plans |  |  | Non-U.S. Plans |
|  | Six Months Ended |  |  | Six Months Ended |
|  | November 30, |  |  | November 30, |  |  | November 30, |  |  | November 30, |
Postretirement Benefits |  | 2018 |  |  | 2017 |  |  | 2018 |  |  | 2017 |
(In thousands) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Service cost |  | $ | - |  |  | $ | - |  |  | $ | 784 |  |  | $ | 622 |
Interest cost |  |  | 96 |  |  |  | 86 |  |  |  | 582 |  |  |  | 448 |
Amortization of: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Prior service (credit) |  |  | (110 | ) |  |  | (110 | ) |  |  | - |  |  |  | - |
Net actuarial (gains) losses recognized |  |  | (12 | ) |  |  | 12 |  |  |  | 230 |  |  |  | 158 |
Net Periodic Benefit (Credit) Cost |  | $ | (26 | ) |  | $ | (12 | ) |  | $ | 1,596 |  |  | $ | 1,228 |
Due to slightly higher discount rates and increased asset values, offset by higher interest cost and lump sum mortality rates, pension expense for fiscal 2019 is comparable to our fiscal 2018 pension expense level. We expect that pension expense will fluctuate on a year-to-year basis, depending upon the investment performance of plan assets and potential changes in interest rates, but such changes are not expected to be material to our consolidated financial results. We previously disclosed in our financial statements for the fiscal year ended May 31, 2018 that we expected to contribute approximately $1.3 million to our retirement plans in the U.S. and approximately $8.1 million to plans outside the U.S. during the current fiscal year, and as of November 30, 2018, those amounts remain unchanged.

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- Definition The entire disclosure for pension and other postretirement benefits. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -URI http://asc.fasb.org/topic&trid=2235017 + Details
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