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COMMITMENTS AND CONTINGENCIES (Tables) | 12 Months Ended
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Dec. 31, 2019
Site Contingency [Line Items] |
Schedule of Total Expected Environmental Remediation Payments for Succeeding Year | The total expected environmental remediation payments, in today’s dollars, for each of the five succeeding fiscal years and the aggregate amount thereafter are as follows:
Estimated Future Environmental Remediation Payments as of December 31, 2019 |
Fiscal year ending December 31, 2020 | $ | 446 |
Fiscal year ending December 31, 2021 | 382 |
Fiscal year ending December 31, 2022 | 392 |
Fiscal year ending December 31, 2023 | 367 |
Fiscal year ending December 31, 2024 | 386 |
Thereafter | 4,630 |
Total | $ | 6,603 |
Reconciliation of Expected Aggregate Non-inflated, Undiscounted Environmental Remediation Liability to Amount Recognized in Statement of Financial Position | A reconciliation of the expected aggregate non-inflated, undiscounted environmental remediation liability to the amount recognized in the statement of financial position is as follows:
Undiscounted liability | $ | 6,603 |
Less discount, net | (856) |
Liability balance - December 31, 2019 | $ | 5,747 |
Southbridge Landfill |
Site Contingency [Line Items] |
Schedule of Environmental Remedial Liability | A summary of the changes to the environmental remediation liability associated with the Southbridge Landfill follows:
| Fiscal Year Ended December 31, |  |
| 2019 |  | 2018
Beginning balance | $ | 5,173 |  |  | $ | 5,936 |
Accretion expense | 124 |  |  | — |
Obligations incurred | — |  |  | 152 |
Obligations settled (1) | (701) |  |  | (915) |
Ending balance | $ | 4,596 |  |  | $ | 5,173 |
(1)Includes amounts that are being processed through accounts payable as a part of our disbursements cycle.
Potsdam Environmental Remediation Liability |
Site Contingency [Line Items] |
Schedule of Environmental Remedial Liability | A summary of the changes to the environmental remediation liability associated with the Potsdam site follows:
| Fiscal Year Ended December 31, |  |
| 2019 |  | 2018
Beginning balance | $ | 5,614 |  |  | $ | 5,758 |
Obligations settled (1) | (4,463) |  |  | (171) |
Obligations incurred | — |  |  | 27 |
Ending balance | $ | 1,151 |  |  | $ | 5,614 |
(1)Includes amounts that are being processed through accounts payable as a part of our disbursements cycle.

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- Definition Tabular disclosure of environmental loss contingencies by individual site. Does not include loss contingencies that are not environmental in nature. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13296-110859 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section S99 -Paragraph 1 -Subparagraph (SAB TOPIC 5.Y.Q2) -URI http://asc.fasb.org/extlink&oid=27011672&loc=d3e149879-122751 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13283-110859 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13207-110859 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 10 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13237-110859 + Details
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