v3.25.4

Leases (Tables) | 9 Months Ended
--- | ---
Dec. 31, 2025
Leases [Abstract] |
Schedule of components of lease cost | The following table summarizes the components of our lease cost for the periods indicated:
|  | Three Months Ended December 31, |  | Nine Months Ended December 31,
|  | 2025 |  | 2024 |  | 2025 |  | 2024
|  | (in thousands)
Operating lease cost (1) |  | $ | 10,765 |  |  | $ | 10,816 |  |  | $ | 30,502 |  |  | $ | 31,505 |
Variable lease cost (1) |  | 13,270 |  |  | 8,744 |  |  | 31,933 |  |  | 28,306 |
Short-term lease cost (1) |  | 121 |  |  | 250 |  |  | 404 |  |  | 1,543 |
Finance lease cost |  |  |  |  |  |  |  |
Amortization of right-of-use asset (2) |  | 260 |  |  | 1 |  |  | 540 |  |  | 4 |
Interest on lease obligation (3) |  | 152 |  |  | 2 |  |  | 341 |  |  | 7 |
Total lease cost |  | $ | 24,568 |  |  | $ | 19,813 |  |  | $ | 63,720 |  |  | $ | 61,365 |
(1) Included in operating expenses in our unaudited condensed consolidated statements of operations. (2) Included in depreciation and amortization expense in our unaudited condensed consolidated statements of operations. (3) Included in interest expense in our unaudited condensed consolidated statements of operations. Amounts in the table above do not include lease costs related to our refined products and biodiesel businesses, as these amounts have been classified within discontinued operations within our consolidated statements of operations (see Note 16).
Schedule of maturities of lease obligations | The following table summarizes maturities of our lease obligations at December 31, 2025 (in thousands):
| Operating |  | Finance
Year Ending March 31, | Leases |  | Leases (1)
2026 (three months) | $ | 10,704 |  |  | $ | 750 |
2027 | 40,289 |  |  | 2,998 |
2028 | 36,680 |  |  | 2,998 |
2029 | 24,460 |  |  | 1,373 |
2030 | 14,042 |  |  | 192 |
2031 | 4,834 |  |  | — |
Thereafter | 19,896 |  |  | — |
Total lease payments | 150,905 |  |  | 8,311 |
Less imputed interest | (28,964) |  |  | (888) |
Total lease obligations | $ | 121,941 |  |  | $ | 7,423 |
(1) At December 31, 2025, the short-term finance lease obligation of $2.6 million is included in accrued expenses and other payables and the long-term finance lease obligation of $4.8 million is included in other noncurrent liabilities in our unaudited condensed consolidated balance sheet.
Schedule of supplemental cash flow and non-cash information for operating and finance leases | The following table summarizes supplemental cash flow information related to our leases for the periods indicated:
|  | Nine Months Ended December 31,
|  | 2025 |  | 2024
|  | (in thousands)
Supplemental Cash Flow Information |  |  |  |
Cash paid for amounts included in the measurement of lease obligations |  |  |  |
Operating cash outflows from operating leases |  | $ | 31,304 |  |  | $ | 31,922 |
Operating cash outflows from finance leases |  | $ | 295 |  |  | $ | 7 |
Financing cash outflows from finance leases |  | $ | 944 |  |  | $ | 14 |
Right-of-use assets obtained in exchange for lease obligations |  |  |  |
Operating leases |  | $ | 34,017 |  |  | $ | 42,143 |
Finance leases |  | $ | 8,141 |  |  | $ | — |
Amounts in the table above do not include operating cash outflows from operating leases related to our refined products and biodiesel businesses, as these amounts have been classified within discontinued operations within our unaudited condensed consolidated statements of operations (see Note 16).
Schedule of future minimum lease payments to be received under contractual commitments | The following table summarizes future minimum lease payments to be received under various noncancelable operating lease agreements at December 31, 2025 (in thousands):
Year Ending March 31, |
2026 (three months) | $ | 3,133 |
2027 | 11,240 |
2028 | 8,114 |
2029 | 3,601 |
2030 | 1,808 |
2031 | 1,816 |
Thereafter | 2,611 |
Total | $ | 32,323 |

X
- Definition Supplemental Cash Flow and Non-Cash information for Operating and Financing Leases + References No definition available. + Details
Name: | ngl_SupplementalCashFlowAndNonCashInformationForOperatingAndFinancingLeasesTableTextBlock
Namespace Prefix: | ngl_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4 + Details
Name: | us-gaap_LeaseCostTableTextBlock
Namespace Prefix: | us-gaap_
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

X
- Definition Tabular disclosure of maturity of undiscounted cash flows to be received by lessor on annual basis for operating lease. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 30 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479773/842-30-50-12 + Details
Name: | us-gaap_LessorOperatingLeasePaymentsToBeReceivedMaturityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration