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Business Segment Information (Reconciliation of Segment Margin to (Loss) Income from Continuing Operations) (Details) - USD ($) | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Mar. 31, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Segment Reporting [Abstract] |  |  |  |  |
Total Segment Margin | $ 152,136,000 | $ 139,325,000 |  | $ 308,233,000 | $ 308,613,000
Corporate general and administrative expenses | (12,359,000) | (24,867,000) |  | (23,511,000) | (31,359,000)
Depreciation, depletion, amortization and accretion | (69,684,000) | (82,580,000) |  | (138,681,000) | (158,558,000)
Interest expense | (59,169,000) | (51,618,000) |  | (116,998,000) | (106,583,000)
Adjustment to exclude distributable cash generated by equity investees not included in income and include equity in investees net income | (7,692,000) | (5,776,000) |  | (16,548,000) | (12,182,000)
Other non-cash items | (14,683,000) | (23,291,000) |  | (33,127,000) | 8,777,000
Distribution from unrestricted subsidiaries not included in income | (17,500,000) | (2,294,000) |  | (35,000,000) | (4,532,000)
Cancelation of debt income | 0 | 18,532,000 |  | 0 | 19,725,000
Loss on extinguishment of debt | 0 | 0 |  | (1,627,000) | (23,480,000)
Differences in timing of cash receipts for certain contractual arrangements | (6,446,000) | (11,638,000) |  | (6,745,000) | (16,128,000)
Impairment expense | 0 | (277,495,000) |  | 0 | (277,495,000)
Provision for leased items no longer in use | 6,000 | (58,000) |  | (598,000) | 72,000
Redeemable noncontrolling interest redemption value adjustments | (5,766,000) | (4,159,000) |  | (10,557,000) | (8,245,000)
Income tax expense | (525,000) | (795,000) |  | (747,000) | (430,000)
NET LOSS ATTRIBUTABLE TO GENESIS ENERGY, L.P. | (41,682,000) | (326,714,000) |  | (75,906,000) | (301,805,000)
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |
Unrealized (losses) gains from valuation of embedded derivatives |  |  |  | (32,377,000) | 9,811,000
Distribution from unrestricted subsidiaries not included in income | 17,500,000 | 2,294,000 |  | 35,000,000 | 4,532,000
Genesis NEJD Pipeline, LLC |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |
Cash receipts not included in income associated with principal payments of previously owned pipeline | 17,500,000 |  |  | 35,000,000.0 |
Embedded Derivative Financial Instruments |  |  |  |  |
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items] |  |  |  |  |
Unrealized (losses) gains from valuation of embedded derivatives | $ (14,300,000) | $ (21,800,000) | $ 32,500,000 | $ (32,800,000) | $ 10,700,000

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