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Supplemental Financial Information (Tables)
 6 Months Ended
Apr. 01, 2023
Condensed Financial Information [Abstract]  
Inventories The following table presents the components of inventories at the dates indicated:
(in thousands of dollars)April 1, 2023October 1, 2022
Raw materials$94,589 $106,070 
Work in process29,479 35,398 
Finished goods5,093 1,509 
Total inventories$129,161 $142,977 
Restricted Cash
The following table provides a reconciliation of cash, cash equivalents, and restricted cash reported on the applicable Condensed Consolidated Balance Sheets that sum to the total of such amounts reported on the Condensed Consolidated Statements of Cash Flows:

(in thousands of dollars)April 1, 2023April 2, 2022
Cash and cash equivalents$17,773 $14,867 
Restricted cash238 — 
Total cash, cash equivalents, and restricted cash reported on the Condensed Consolidated Statements of Cash Flows$18,011 $14,867 
Product Warranties
The following table reflects activity in accrued warranty cost (current and long-term portions combined) for the periods presented:
Three Months EndedSix Months Ended
(in thousands of dollars)April 1, 2023April 2, 2022April 1, 2023April 2, 2022
Balance at beginning of period$15,580 $17,252 $15,970 $18,550 
Add current period accruals2,432 2,051 4,465 3,287 
Current period reductions of accrual(2,458)(2,318)(4,881)(4,852)
Balance at end of period$15,554 $16,985 $15,554 $16,985 
Extended Warranties
The following table reflects activity in deferred warranty income (current and long-term portions combined), for the sale of extended warranties of two to five years, for the periods presented:
Three Months EndedSix Months Ended
(in thousands of dollars)April 1, 2023April 2, 2022April 1, 2023April 2, 2022
Balance at beginning of period$19,290 $19,088 $18,795 $20,144 
Add current period deferred income2,756 1,421 5,092 2,360 
Current period recognition of income(1,965)(2,095)(3,806)(4,090)
Balance at end of period$20,081 $18,414 $20,081 $18,414 
Self-Insurance The following table reflects our total accrued self-insurance liability, comprised of workers' compensation and health insurance related claims, at the dates indicated:
(in thousands of dollars)April 1, 2023October 1, 2022
Current portion$3,585 $3,996 
Long-term portion1,751 1,794 
Total accrued self-insurance$5,336 $5,790 
Pension Expense Components of net periodic pension benefit expense (income) were as follows for the periods presented:
Three Months EndedSix Months Ended
(in thousands of dollars)April 1, 2023April 2, 2022April 1, 2023April 2, 2022
Interest cost$1,509 $1,092 $3,018 $2,184 
Expected return on plan assets(1,630)(2,122)(3,260)(4,244)
Amortization of prior loss299 291 598 582 
Net periodic benefit expense (income)$178 $(739)$356 $(1,478)
Amortization of prior loss, recognized in other comprehensive income(299)(291)(598)(582)
Total recognized in net periodic pension benefit expense (income) and other comprehensive income$(121)$(1,030)$(242)$(2,060)