XML 40 R26.htm IDEA: XBRL DOCUMENT
v3.24.4

Retirement Plan And Other Post-Retirement Benefits (Tables) | 3 Months Ended
--- | ---
Dec. 31, 2024
Retirement Benefits [Abstract] |
Components of Net Periodic Benefit Cost (Income) | Components of Net Periodic Benefit Cost (in thousands):
| Retirement Plan |  | Other Post-Retirement Benefits
Three Months Ended December 31, | 2024 | 2023 |  | 2024 | 2023
Service Cost | $ | 1,023 |  | $ | 1,049 |  |  | $ | 130 |  | $ | 109 |
Interest Cost | 9,223 |  | 10,890 |  |  | 3,625 |  | 3,890 |
Expected Return on Plan Assets | (14,647) |  | (17,086) |  |  | (6,536) |  | (6,660) |
Amortization of Prior Service Cost (Credit) | 76 |  | 91 |  |  | (107) |  | (107) |
Amortization of (Gains) Losses | 1,620 |  | (335) |  |  | 9 |  | (567) |
Net Amortization and Deferral for Regulatory Purposes (Including Volumetric Adjustments) (1) | (165) |  | 4,057 |  |  | (727) |  | 2,238 |
Net Periodic Benefit Cost (Income) | $ | (2,870) |  | $ | (1,334) |  |  | $ | (3,606) |  | $ | (1,097) |
(1)The Company’s policy is to record retirement plan and other post-retirement benefit costs in the Utility segment on a volumetric basis to reflect the fact that the Utility segment experiences higher throughput of natural gas in the winter months and lower throughput of natural gas in the summer months.

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 -Topic 715 -SubTopic 20 -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
Name: | us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration