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Consolidated Statements of Changes in Partnership Capital - USD ($)
shares in Thousands, $ in Thousands
General Partner [Member]
Limited Partner [Member]
Total
Balance at Dec. 31, 2019 $ 1,228 $ 111,108 $ 112,336
Balance (in shares) at Dec. 31, 2019   34,680  
Net income 705 $ 21,162 21,867
Distributions (1,397) (48,242) (49,639)
Balance at Dec. 31, 2020 536 $ 84,028 84,564
Balance (in shares) at Dec. 31, 2020   34,680  
Net income 2,348 $ 67,826 70,174
Distributions (1,902) (53,910) (55,812)
Acquisitions of assets for units 0 $ 43,484 43,484
Acquisitions of assets for units (in shares)   2,305  
Balance at Dec. 31, 2021 982 $ 141,428 142,410
Balance (in shares) at Dec. 31, 2021   36,985  
Net income 4,486 $ 126,121 130,607
Distributions (4,792) (131,901) (136,693)
Acquisitions of assets for units 0 $ 35,194 35,194
Acquisitions of assets for units (in shares)   1,387  
Balance at Dec. 31, 2022 $ 676 $ 170,842 $ 171,518
Balance (in shares) at Dec. 31, 2022   38,372