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PENSION AND OTHER POST-RETIREMENT BENEFIT PLANS
 3 Months Ended
Mar. 27, 2021
Retirement Benefits [Abstract]  
PENSION AND OTHER POST-RETIREMENT BENEFIT PLANS PENSION AND OTHER POST-RETIREMENT BENEFIT PLANS
The following table provides the components of net periodic cost for the Company’s pension, deferred compensation and executive supplemental life insurance retirement plans:
 Three Months Ended
March 27, 2021March 28, 2020
(in thousands)
Service cost$911 $797 
Interest cost1,344 2,355 
Expected return on plan assets(1,983)(2,981)
Amortization of prior service cost (credit)(128)(125)
Amortization of net loss1,110 1,586 
Other adjustments— 125 
Net periodic cost$1,254 $1,757 

Service cost is recorded as an operating expense within the accompanying unaudited condensed consolidated statements of income. All other components of net periodic costs are recorded in Other expense, net in the accompanying unaudited condensed consolidated statements of income. The net periodic cost for the Company’s other post-retirement benefit plan for the three months ended March 27, 2021 and March 28, 2020 was not significant.