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Exit of Butane Optimization Business - Revenue and Cost of Disposal Group (Details) - Butane Optimization Business - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2023
Jun. 30, 2022
Jun. 30, 2023
Jun. 30, 2022
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations        
Products revenue $ 13,650 $ 31,264 $ 70,539 $ 88,447
Cost of products sold 16,074 32,135 72,282 82,414
Selling, general and administrative expenses 140 71 512 1,281
Operating income (loss) $ (2,564) $ (942) $ (2,255) $ 4,752