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Business Segment Information (Reconciliation of Segment Margin to Net Income) (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Feb. 15, 2018 | Dec. 31, 2018 | Sep. 30, 2018 | Jun. 30, 2018 | Mar. 31, 2018 | Dec. 31, 2017 | Sep. 30, 2017 | Jun. 30, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Segment Reporting [Abstract] |  |  |  |  |  |  |  |  |  |  |  |  |
Total Segment Margin |  |  |  |  |  |  |  |  |  |  | $ 712,758 | $ 594,543 | $ 569,571
Corporate general and administrative expenses |  |  |  |  |  |  |  |  |  |  | (64,683) | (60,029) | (40,905)
Depreciation, depletion, amortization and accretion |  |  |  |  |  |  |  |  |  |  | (317,186) | (262,021) | (230,563)
Interest expense |  |  |  |  |  |  |  |  |  |  | (229,191) | (176,762) | (139,947)
Adjustment to exclude distributable cash generated by equity investees not included in income and include equity in investees net income | [1] |  |  |  |  |  |  |  |  |  | (28,088) | (31,852) | (39,276)
Non-cash items not included in Segment Margin |  |  |  |  |  |  |  |  |  |  | 9,698 | (14,305) | (3,221)
Cash payments from direct financing leases in excess of earnings |  |  |  |  |  |  |  |  |  |  | (7,633) | (6,921) | (6,277)
Loss on debt extinguishment |  | $ (3,300) |  |  |  |  |  |  |  |  | (3,339) | (6,242) | 0
Differences in timing of cash receipts for certain contractual arrangements | [2] |  |  |  |  |  |  |  |  |  | 6,629 | 17,540 | 13,253
Gain on sales of assets |  |  |  |  |  |  |  |  |  |  | 42,264 | 40,311 | 0
Other, net |  |  |  |  |  |  |  |  |  |  | 0 | (2,985) | (6,044)
Non-cash provision for leased items no longer in use |  |  |  |  |  |  |  |  |  |  | 476 | (12,589) | 0
Income tax benefit (expense) |  |  |  |  |  |  |  |  |  |  | (1,498) | 3,959 | (3,342)
Impairment expense |  |  |  |  |  |  |  |  |  |  | (126,282) | 0 | 0
NET INCOME (LOSS) ATTRIBUTABLE TO GENESIS ENERGY, L.P. |  |  | $ (24,783) | $ (323) | $ 10,997 | $ 8,034 | $ 15,512 | $ 6,312 | $ 33,733 | $ 27,090 | $ (6,075) | $ 82,647 | $ 113,249
[1] | Includes distributions attributable to the period and received during or promptly following such period.
[2] | Includes the difference in timing of cash receipts from customers during the period and the revenue we recognize in accordance with GAAP on our related contracts.

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- Definition Revenues less product costs, operating expenses (excluding non-cash charges such as depreciation and amortization), and segment general and administrative expenses, plus our equity in distributable cash generated by our equity investees. Also excludes the non-cash effects of our stock appreciation rights compensation plan and includes the non-income portion of payments received under direct financing leases. + References No definition available. + Details
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