v3.23.3
PENSION AND OTHER POST-RETIREMENT BENEFIT PLANS - NARRATIVE (Details)
$ in Thousands
3 Months Ended 9 Months Ended
Aug. 31, 2023
USD ($)
Oct. 01, 2023
USD ($)
Oct. 02, 2022
USD ($)
Oct. 01, 2023
USD ($)
Oct. 02, 2022
USD ($)
Defined Benefit Plan Disclosure [Line Items]          
Defined benefit plan, remeasurement, basis spread on discount rate (basis points)       0.0053  
Defined benefit plan, assumptions used calculating net periodic benefit cost, expected long-term rate of return on plan assets       6.30%  
Pension Benefits           
Defined Benefit Plan Disclosure [Line Items]          
Employer contributions   $ 987 $ 824 $ 4,849 $ 4,580
Non-cash pre tax settlement charge   943 3,728 5,332 14,104
Other Benefits           
Defined Benefit Plan Disclosure [Line Items]          
Employer contributions   5,314 1,484 16,224 12,059
Non-cash pre tax settlement charge   926 $ 0 $ 926 $ 0
Other Benefits  | The Hershey Company Retiree Medical and Life Insurance Plan          
Defined Benefit Plan Disclosure [Line Items]          
Payment to acquire annuity contract $ 88,689        
Non-cash pre tax settlement charge   $ 926