XML 42 R31.htm IDEA: XBRL DOCUMENT
v3.25.2

Property, Plant and Equipment (Tables) | 3 Months Ended
--- | ---
Jun. 30, 2025
Property, Plant and Equipment [Abstract] |
Schedule of property, plant and equipment | Property, Plant and Equipment Our property, plant and equipment consists of the following at the dates indicated:
Description |  | Estimated Useful Lives |  | June 30, 2025 |  | March 31, 2025
|  | (in years) |  | (in thousands)
Water treatment facilities and equipment (1) |  | 3 | - | 30 |  | $ | 2,261,118 |  |  | $ | 2,240,919 |
Pipeline and related facilities |  | 30 | - | 40 |  | 266,324 |  |  | 266,324 |
Crude oil tanks and related equipment |  | 2 | - | 30 |  | 230,719 |  |  | 230,174 |
Buildings and leasehold improvements |  | 3 | - | 40 |  | 124,900 |  |  | 124,388 |
Natural gas liquids terminal and storage assets |  | 2 | - | 30 |  | 100,120 |  |  | 99,805 |
Land |  |  |  |  |  | 64,600 |  |  | 64,733 |
Information technology equipment |  | 3 | - | 7 |  | 31,028 |  |  | 31,319 |
Tank bottoms and linefill (2) |  |  |  |  |  | 30,623 |  |  | 30,623 |
Vehicles and railcars |  | 3 | - | 25 |  | 22,830 |  |  | 33,629 |
Other |  | 3 | - | 20 |  | 19,139 |  |  | 19,161 |
Construction in progress |  |  |  |  |  | 29,270 |  |  | 30,354 |
Gross property, plant and equipment |  |  |  |  |  | 3,180,671 |  |  | 3,171,429 |
Accumulated depreciation |  |  |  |  |  | (1,144,479) |  |  | (1,104,582) |
Net property, plant and equipment |  |  |  |  |  | $ | 2,036,192 |  |  | $ | 2,066,847 |
(1) Includes finance lease right-of-use assets of $5.8 million and $0.1 million at June 30, 2025 and March 31, 2025, respectively. Accumulated amortization related to these finance leases is included within accumulated depreciation. (2) Tank bottoms, which are product volumes required for the operation of storage tanks, are recorded at historical cost. We recover tank bottoms when the storage tanks are removed from service. Linefill, which represents our portion of the product volume required for the operation of the proportionate share of a pipeline we own, is recorded at historical cost. Amounts in the table above do not include assets classified as either held for sale or discontinued operations within our June 30, 2025 and March 31, 2025 unaudited condensed consolidated balance sheets (see Note 16).
Schedule of depreciation expense and capitalized interest expense | The following table summarizes depreciation expense and capitalized interest expense for the periods indicated:
|  | Three Months Ended June 30, |  |
|  | 2025 |  | 2024 |  |  |  |
|  | (in thousands)
Depreciation expense |  | $ | 53,417 |  |  | $ | 47,919 |  |  |  |  |
Capitalized interest expense |  | $ | 84 |  |  | $ | 543 |  |  |  |  |
Schedule of (gains) losses from the sales of property, plant and equipment and any write-downs in value due to impairment | The following table summarizes (gains) losses on the disposal or impairment of property, plant and equipment by segment for the period indicated:
|  | Three Months Ended June 30, 2025 |  |
|  | (in thousands)
Water Solutions (1) |  | $ | 1,494 |  |  |
Crude Oil Logistics (2) |  | (3) |  |  |
Liquids Logistics (3) |  | (13) |  |  |
Corporate and Other |  | (1) |  |  |
Total |  | $ | 1,477 |  |  |
(1) Amount does not include the loss recognized on the sale of certain investments in unconsolidated entities and related assets during the three months ended June 30, 2025 discussed in Note 15. (2) Amount does not include the gain recognized on the sale of certain railcars during the three months ended June 30, 2025 discussed in Note 15. (3) Amount does not include the gains recognized on the Wholesale Propane Disposition and the sale of our refined products business during the three months ended June 30, 2025 discussed in Note 15.

X
- Definition Tabular disclosure of depreciation expense and capitalized interest expense relating to property, plant and equipment. + References No definition available. + Details
Name: | ngl_ScheduleOfDepreciationExpenseandCapitalizedInterestExpenseTableTextBlock
Namespace Prefix: | ngl_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Schedule of loss (gain) on sale or disposal of property, plant or equipment. + References No definition available. + Details
Name: | ngl_ScheduleOfLossGainOnSaleOrDisposalOfPropertyPlantAndEquipmentTableTextBlock
Namespace Prefix: | ngl_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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

X
- Definition Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 1 -SubTopic 10 -Topic 360 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482099/360-10-50-1 + Details
Name: | us-gaap_PropertyPlantAndEquipmentTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration