XML 80 R31.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Leases, (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
Leases [Abstract] |
Other Information Related to Operating Leases Table Text Block |
| Year Ended |  |
| December 31,
Other information related to operating leases | 2023 | 2022 | 2021 |  |
| (Millions of dollars) |  |
Weighted-average remaining lease term | 4 years | 5 years | 6 years |  |
Weighted-average discount rate | 4.28 | % | 4.04 | % | 2.78 | % |  |
Supplemental cash flows information |  |  |  |  |
Lease payments | $ | (8.3) |  | $ | (8.2) |  | $ | (8.0) |  |  |
Right-of-use assets obtained in exchange for lease obligations | $ | 3.9 |  | $ | 0.3 |  | $ | 0.4 |  |  |
Lessee, Operating Lease, Liability, to be Paid, Maturity |
|  | December 31,
Future minimum lease payments under non-cancellable operating leases |  | 2023 |  |  |  |  |  |
|  | (Millions of dollars)
2024 |  | $ | 6.7 |  |  |  |  |  |  |
2025 |  | 4.9 |  |  |  |  |  |  |
2026 |  | 3.3 |  |  |  |  |  |  |
2027 |  | 3.1 |  |  |  |  |  |  |
2028 |  | 2.8 |  |  |  |  |  |  |
Thereafter |  | 1.4 |  |  |  |  |  |  |
Total future minimum lease payments |  | $ | 22.2 |  |  |  |  |  |  |
Imputed interest |  | (1.9) |  |  |  |  |  |  |
Total operating lease liability |  | $ | 20.3 |  |  |  |  |  |  |
Consolidated balance sheets as of December 31, 2023 |  |  |  |  |  |  |  |
Current operating lease liability |  | $ | 6.0 |  |  |  |  |  |  |
Long-term operating lease liability |  | 14.3 |  |  |  |  |  |  |
Total operating lease liability |  | $ | 20.3 |  |  |  |  |  |  |

X
- Definition Other Information Related to Operating Leases Table Text Block + References No definition available. + Details
Name: | ogs_OtherInformationRelatedToOperatingLeasesTableTextBlockTableTextBlock
Namespace Prefix: | ogs_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 6 -Publisher FASB -URI https://asc.fasb.org//1943274/2147478964/842-20-50-6 + Details
Name: | us-gaap_LesseeOperatingLeaseLiabilityMaturityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration