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Defined Benefit Plans (Tables) | 9 Months Ended
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Oct. 29, 2016
Defined Benefit Pension Plans and Defined Benefit Postretirement Plans Disclosure [Abstract] |
Components of net periodic defined benefit pension cost related to the SERP | The components of net periodic defined benefit pension cost for the three and nine months ended October 29, 2016 and October 31, 2015 related to the SERP are as follows (in thousands):
| Three Months Ended |  | Nine Months Ended
| Oct 29, 2016 |  | Oct 31, 2015 |  | Oct 29, 2016 |  | Oct 31, 2015
Interest cost | $ | 460 |  |  | $ | 498 |  |  | $ | 1,380 |  |  | $ | 1,489 |
Net amortization of unrecognized prior service credit | — |  |  | — |  |  | — |  |  | (97 | )
Net amortization of actuarial losses | 39 |  |  | 11 |  |  | 116 |  |  | 729 |
Curtailment gain | — |  |  | — |  |  | — |  |  | (1,651 | )
Net periodic defined benefit pension cost | $ | 499 |  |  | $ | 509 |  |  | $ | 1,496 |  |  | $ | 470 |

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=58740216&loc=d3e1928-114920 + Details
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