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 |
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| 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 | ||||||
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