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Retirement Plans | 6 Months Ended
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Oct. 31, 2019
Retirement Plans [Abstract] |
Retirement Plans | Note 14 — Retirement Plans The components of net pension expense (income) for our global defined benefit plans were as follows:
|  | Three Months Ended October 31, |  |  | Six Months Ended October 31, |
|  | 2019 |  |  | 2018 |  |  | 2019 |  |  | 2018 |
Service cost |  | $ | 1,093 |  |  | $ | 229 |  |  | $ | 1,317 |  |  | $ | 462 |
Interest cost |  |  | 6,350 |  |  |  | 6,169 |  |  |  | 12,184 |  |  |  | 12,381 |
Expected return on plan assets |  |  | (9,886 | ) |  |  | (9,720 | ) |  |  | (19,945 | ) |  |  | (19,622 | )
Net amortization of prior service cost |  |  | (19 | ) |  |  | (24 | ) |  |  | (38 | ) |  |  | (48 | )
Unrecognized net actuarial loss |  |  | 1,581 |  |  |  | 1,474 |  |  |  | 3,181 |  |  |  | 2,908 |
Net pension income |  | $ | (881 | ) |  | $ | (1,872 | ) |  | $ | (3,301 | ) |  | $ | (3,919 | )
Employer defined benefit pension plan contributions were $3.3 million and $3.5 million for the three months ended October 31, 2019 and 2018, respectively, and $8.0 million and $7.1 million for the six months ended October 31, 2019 and 2018, respectively. The expense for employer defined contribution plans were approximately $3.1 million and $2.8 million for the three months ended October 31, 2019 and 2018, respectively, and $7.4 million and $7.3 million for the six months ended October 31, 2019 and 2018, respectively.

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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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