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Retirement Plans (Tables) | 9 Months Ended
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Oct. 31, 2020
Retirement Benefits [Abstract] |
Schedule of Defined Benefit Plans Disclosures | The net periodic pension cost for the Pension Plan and the VIP Plan for the three months and nine months ended October 31, 2020 and 2019 were as follows:
| Combined Employee Retirement Plans
| Three Months Ended |  | Nine Months Ended
| 10/31/2020 |  | 10/31/2019 |  | 10/31/2020 |  | 10/31/2019
| (in thousands)
Service cost | $ | — |  | $ | — |  | $ | — |  | $ | —
Interest cost | 301 |  | 355 |  | 903 |  | 1,065
Expected return on plan assets | (224) |  | (343) |  | (672) |  | (1,029)
Plan settlement | — |  | — |  | — |  | —
Amortization of prior service cost | — |  | — |  | — |  | —
Recognized net actuarial loss | 465 |  | 176 |  | 1,395 |  | 528
Benefit cost | $ | 542 |  | $ | 188 |  | $ | 1,626 |  |  | $ | 564 |

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- Definition Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI http://asc.fasb.org/extlink&oid=118257860&loc=d3e4179-114921 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2439-114920 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e1928-114920 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2410-114920 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=118255775&loc=d3e2417-114920 + Details
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