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Pension & Postretirement Plans (Tables)
3 Months Ended
Dec. 31, 2022
Retirement Benefits [Abstract]  
Schedule of Pension and Postretirement Plan Expenses Total periodic pension and postretirement (income) expense is summarized below:
 Three Months Ended December 31,
 2021 2022 
Service cost$19 12 
Interest cost34 54 
Expected return on plan assets
(78)(71)
Net amortization23 (20)
Total$(2)(25)