Benefit Plans - Schedule of Amortization from Other Accumulated Comprehensive Income into Net Period Benefit Costs (Details) $ in Thousands |
Aug. 31, 2020
USD ($)
|
---|---|
Defined Benefit Plan Disclosure [Line Items] | |
Defined benefit plan, health care benefits annual rate of increase in the per capita cost | 7.10% |
Defined benefit plan, health care benefits, decrease in the per capita cost trend rate | 4.50% |
Pension Benefits | |
Defined Benefit Plan Disclosure [Line Items] | |
Fiscal 2018 Amortization of prior service cost (credit) | $ 178 |
Fiscal 2018 Amortization of net actuarial (gain) loss | 21,790 |
Non-Qualified Pension Benefits | |
Defined Benefit Plan Disclosure [Line Items] | |
Fiscal 2018 Amortization of prior service cost (credit) | (114) |
Fiscal 2018 Amortization of net actuarial (gain) loss | 212 |
Other Benefits | |
Defined Benefit Plan Disclosure [Line Items] | |
Fiscal 2018 Amortization of prior service cost (credit) | (445) |
Fiscal 2018 Amortization of net actuarial (gain) loss | $ (1,365) |