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OTHER LONG-TERM LIABILITIES | 12 Months Ended
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Dec. 31, 2020
Other Liabilities Disclosure [Abstract] |
OTHER LONG-TERM LIABILITIES | OTHER LONG-TERM LIABILITIES Other long-term liabilities consisted of the following:
(in millions) |  | December 31, 2020 |  | December 31, 2019
Environmental liabilities |  | $ | 141.9 |  |  | $ | 121.8 |
Defined benefit pension plan liabilities |  | 73.5 |  |  | 73.8 |
Post-retirement medical plan liabilities |  | 22.0 |  |  | 17.5 |
Early railcar return liability |  | 13.9 |  |  | 17.6 |
East Coast Storage Assets Contingent Consideration |  | — |  |  | 16.1 |
Other |  | 17.2 |  |  | 4.1 |
Total other long-term liabilities |  | $ | 268.5 |  |  | $ | 250.9 |

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- Definition The entire disclosure for other liabilities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20,24) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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