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Pension Plans (Tables) | 6 Months Ended
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Nov. 30, 2018
Retirement Benefits [Abstract] |
Components of Net Periodic Benefit Cost | The components of net periodic pension cost (benefit) recognized in other comprehensive income for the Pension Plan are as follows:
| Three Months Ended |  | Six Months Ended
(In thousands) | November 30, 2018 |  | November 30, 2017 |  | November 30, 2018 |  | November 30, 2017
Interest cost | $ | 781 |  |  | $ | 711 |  |  | $ | 1,562 |  |  | $ | 1,421 |
Expected return on assets | (720 | ) |  | (716 | ) |  | (1,441 | ) |  | (1,432 | )
Total net periodic pension cost (benefit) | $ | 61 |  |  | $ | (5 | ) |  | $ | 121 |  |  | $ | (11 | )

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- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920 + Details
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