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Benefit Plans
3 Months Ended
Nov. 30, 2020
Retirement Benefits [Abstract]  
Benefit plans Benefit Plans
    We have various pension and other defined benefit and defined contribution plans, in which substantially all employees may participate. We also have nonqualified supplemental executive and Board retirement plans.

    Components of net periodic benefit costs for the three months ended November 30, 2020 and 2019, are as follows:
Three Months Ended
November 30,
Qualified
Pension Benefits
Nonqualified
Pension Benefits
Other Benefits
 202020192020201920202019
Components of net periodic benefit costs:
 (Dollars in thousands)
Service cost$11,307 $10,538 $108 $101 $297 $262 
Interest cost4,141 5,431 68 107 123 187 
Expected return on assets(10,910)(11,671)— — — — 
Prior service cost (credit) amortization45 45 (28)(28)(111)(111)
Actuarial loss (gain) amortization5,447 5,396 53 25 (341)(348)
Net periodic benefit cost (benefit)$10,030 $9,739 $201 $205 $(32)$(10)

    The service cost component of defined benefit net periodic benefit cost is recorded in cost of goods sold and marketing, general and administrative expenses. The other components of net periodic benefit cost are recorded in other income.

Employer Contributions

    Any contributions made during fiscal 2021 will depend primarily on market returns on the pension plan assets and minimum funding level requirements. No contributions were made to the pension plans during the three months ended November 30, 2020, and we do not currently anticipate being required to make contributions for our pension plans in fiscal 2021.