v3.26.1
Note 3 - Common Unit Distributions - Distributions Made to Partners (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Distributions, common units $ 11,763 $ 26,276
Common Unitholders, General Partner [Member]    
Distribution per unit, common units (in dollars per share) $ 0.75 $ 0.75
Distributions, common units [1] $ 10,141 $ 10,055
Common Unitholders, General Partner [Member] | March 2026 Special Distribution [Member]    
Distribution per unit, common units (in dollars per share) [2] $ 0.12  
Distributions, common units [1],[2] $ 1,622  
Common Unitholders, General Partner [Member] | March 2025 Special Distribution [Member]    
Distribution per unit, common units (in dollars per share) [3]   $ 1.21
Distributions, common units [1],[3]   $ 16,221
[1] Totals include the amount paid to NRP's general partner in accordance with the general partner's 2% general partner interest.
[2] Special distribution was made to help cover unitholder tax liabilities associated with owning NRP's common units during 2025.
[3] Special distribution was made to help cover unitholder tax liabilities associated with owning NRP's common units during 2024.