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Defined Benefit Plans (Tables)
9 Months Ended
Oct. 31, 2020
Defined Benefit Plan [Abstract]  
Components of net periodic defined benefit pension cost related to the Company's defined benefit plans
The components of net periodic defined benefit pension cost for the three and nine months ended October 31, 2020 and November 2, 2019 related to the Company’s defined benefit plans are as follows (in thousands):
 Three Months Ended Oct 31, 2020
 SERPForeign Pension PlansTotal
Service cost$— $809 $809 
Interest cost319 327 
Expected return on plan assets— (48)(48)
Net amortization of unrecognized prior service credit— (17)(17)
Net amortization of actuarial losses10 91 101 
Net periodic defined benefit pension cost $329 $843 $1,172 
 Nine Months Ended Oct 31, 2020
 SERPForeign Pension PlansTotal
Service cost$— $2,339 $2,339 
Interest cost958 23 981 
Expected return on plan assets— (138)(138)
Net amortization of unrecognized prior service credit— (49)(49)
Net amortization of actuarial losses30 264 294 
Net periodic defined benefit pension cost $988 $2,439 $3,427 
 Three Months Ended Nov 2, 2019
 SERPForeign Pension PlansTotal
Service cost$— $809 $809 
Interest cost481 68 549 
Expected return on plan assets— (78)(78)
Net amortization of unrecognized prior service credit— (10)(10)
Net amortization of actuarial losses15 97 112 
Net periodic defined benefit pension cost $496 $886 $1,382 
Nine Months Ended Nov 2, 2019
 SERPForeign Pension PlansTotal
Service cost$— $2,424 $2,424 
Interest cost1,443 203 1,646 
Expected return on plan assets— (233)(233)
Net amortization of unrecognized prior service credit— (29)(29)
Net amortization of actuarial losses46 288 334 
Net periodic defined benefit pension cost $1,489 $2,653 $4,142