XML 37 R22.htm IDEA: XBRL DOCUMENT
v3.22.4

Rate and Regulatory Matters (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2022
Regulated Operations [Abstract] |
Schedule of regulatory assets |
|  | (Thousands of Dollars) |  |
|  | December 31, |  | Remaining
Regulatory Assets |  | 2022 |  | 2021 |  | Recovery Periods
Retirement Benefits |  | $ | 9,214 |  |  | $ | 24,926 |  |  | Various
Income Taxes |  |  | 74,422 |  |  |  | 70,427 |  |  | Various
Rate Cases, Tank Painting, and Other |  |  | 6,410 |  |  |  | 5,385 |  |  | 2-10 years
Total |  | $ | 90,046 |  |  | $ | 100,738 |  |  |

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

X
- Definition Tabular disclosure of assets that are created when regulatory agencies permit public utilities to defer certain costs included in rate-setting to the balance sheet. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 715 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6501251&loc=d3e52485-110419 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=6499975&loc=d3e44264-110382 + Details
Name: | us-gaap_ScheduleOfRegulatoryAssetsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration