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Earnings Per Share or Unit (Details) - shares
3 Months Ended 9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2021
Sep. 30, 2020
Earnings Per Share [Abstract]        
Weighted average limited partner units outstanding, basic (in shares) 2,400,000 2,200,000 2,500,000 2,200,000
Dilutive impact (in shares) 0 0   0