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PENSION AND OTHER POST-RETIREMENT BENEFIT PLANS
 6 Months Ended
Jun. 27, 2020
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 EndedSix Months Ended
June 27, 2020June 29, 2019June 27, 2020June 29, 2019
(in thousands)
Service cost$798  $757  $1,595  $1,387  
Interest cost2,354  2,875  4,709  5,750  
Expected return on plan assets(2,982) (3,235) (5,963) (6,470) 
Amortization of prior service cost (credit)(126) 91  (251) 182  
Amortization of net loss1,586  488  3,172  977  
Other adjustments125  —  250  —  
Net periodic cost$1,755  $976  $3,512  $1,826  
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 and six months ended June 27, 2020 and June 29, 2019 was not significant.