XML 27 R15.htm IDEA: XBRL DOCUMENT
v3.25.1

Note 8 - Mineral Rights, Net | 3 Months Ended
--- | ---
Mar. 31, 2025
Notes to Financial Statements |
Mineral Industries Disclosures [Text Block] | 8. Mineral Rights, Net The Partnership’s mineral rights consist of the following:
|  | March 31, 2025 |  |  | December 31, 2024 |
(In thousands) |  | Carrying Value |  |  | Accumulated Depletion |  |  | Net Book Value |  |  | Carrying Value |  |  | Accumulated Depletion |  |  | Net Book Value |
Coal properties |  | $ | 653,808 |  |  | $ | (294,522 | ) |  | $ | 359,286 |  |  | $ | 660,961 |  |  | $ | (299,404 | ) |  | $ | 361,557 |
Aggregates properties |  |  | 8,655 |  |  |  | (4,139 | ) |  |  | 4,516 |  |  |  | 8,655 |  |  |  | (4,065 | ) |  |  | 4,590 |
Oil and gas royalty properties |  |  | 12,354 |  |  |  | (10,441 | ) |  |  | 1,913 |  |  |  | 12,354 |  |  |  | (10,394 | ) |  |  | 1,960 |
Other |  |  | 13,142 |  |  |  | (1,612 | ) |  |  | 11,530 |  |  |  | 13,143 |  |  |  | (1,612 | ) |  |  | 11,531 |
Total mineral rights, net |  | $ | 687,959 |  |  | $ | (310,714 | ) |  | $ | 377,245 |  |  | $ | 695,113 |  |  | $ | (315,475 | ) |  | $ | 379,638 |
Depletion expense related to the Partnership’s mineral rights is included in depreciation, depletion and amortization on its Consolidated Statements of Comprehensive Income and totaled $3.7 million and $4.3 million for the three months ended March 31, 2025 and 2024, respectively. The Partnership has developed procedures to evaluate its long-lived assets for possible impairment periodically or whenever events or changes in circumstances indicate an asset's net book value may not be recoverable. Potential events or circumstances include, but are not limited to, specific events such as a reduction in economically recoverable minerals or production ceasing on a property for an extended period. This analysis is based on historic, current and future performance and considers both quantitative and qualitative information. As a result of the Partnership's analyses, NRP recorded an immaterial impairment expense during the three months ended March 31, 2025.

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

X
- Definition The entire disclosure for mineral industries. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 930 -SubTopic 715 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147477692/930-715-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 930 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org/930/tableOfContent + Details
Name: | us-gaap_MineralIndustriesDisclosuresTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration