XML 55 R27.htm IDEA: XBRL DOCUMENT
v3.22.1

Benefit Plans Schedule of Net Benefit Costs (Tables) | 6 Months Ended
--- | ---
Feb. 28, 2022
Retirement Benefits [Abstract] |
Schedule of Net Benefit Costs of Assumptions Used | Components of net periodic benefit costs for the three and six months ended February 28, 2022 and 2021, are as follows:
| Three Months Ended February 28,
| Qualified Pension Benefits |  | Nonqualified Pension Benefits |  | Other Benefits
| 2022 |  | 2021 |  | 2022 |  | 2021 |  | 2022 |  | 2021
Components of net periodic benefit costs: | (Dollars in thousands)
Service cost | $ | 11,569 |  |  | $ | 11,307 |  |  | $ | 232 |  |  | $ | 108 |  |  | $ | 249 |  |  | $ | 297 |
Interest cost | 4,292 |  |  | 4,141 |  |  | 70 |  |  | 68 |  |  | 126 |  |  | 123 |
Expected return on assets | (10,990) |  |  | (10,910) |  |  | — |  |  | — |  |  | — |  |  | — |
Prior service cost (credit) amortization | 44 |  |  | 45 |  |  | (29) |  |  | (28) |  |  | (111) |  |  | (111) |
Actuarial loss (gain) amortization | 5,852 |  |  | 5,447 |  |  | 120 |  |  | 53 |  |  | (315) |  |  | (341) |
Net periodic benefit cost (benefit) | $ | 10,767 |  |  | $ | 10,030 |  |  | $ | 393 |  |  | $ | 201 |  |  | $ | (51) |  |  | $ | (32) |
| Six Months Ended February 28,
| Qualified Pension Benefits |  | Nonqualified Pension Benefits |  | Other Benefits
| 2022 |  | 2021 |  | 2022 |  | 2021 |  | 2022 |  | 2021
Components of net periodic benefit costs: | (Dollars in thousands)
Service cost | $ | 23,138 |  |  | $ | 22,614 |  |  | $ | 463 |  |  | $ | 217 |  |  | $ | 498 |  |  | $ | 593 |
Interest cost | 8,584 |  |  | 8,281 |  |  | 141 |  |  | 136 |  |  | 252 |  |  | 246 |
Expected return on assets | (21,979) |  |  | (21,821) |  |  | — |  |  | — |  |  | — |  |  | — |
Prior service cost (credit) amortization | 87 |  |  | 89 |  |  | (57) |  |  | (57) |  |  | (223) |  |  | (223) |
Actuarial loss (gain) amortization | 11,703 |  |  | 10,895 |  |  | 239 |  |  | 106 |  |  | (630) |  |  | (682) |
Net periodic benefit cost (benefit) | $ | 21,533 |  |  | $ | 20,058 |  |  | $ | 786 |  |  | $ | 402 |  |  | $ | (103) |  |  | $ | (66) |

X
- References No definition available. + Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration