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SIGNIFICANT ACCOUNTING POLICIES - Remedial Liabilities (Details) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2021 USD ($) site | Dec. 31, 2020 USD ($) | Dec. 31, 2019 USD ($)
Regulatory Liabilities [Line Items] |  |  |
Accrual for Environmental Loss Contingencies | $ | $ 111,873 | $ 114,813 | $ 114,173
Minimum |  |  |
Regulatory Liabilities [Line Items] |  |  |
Remedial liabilities at acquisition, risk-free interest rate (as a percent) | 1.37% |  |
Maximum |  |  |
Regulatory Liabilities [Line Items] |  |  |
Remedial liabilities at acquisition, risk-free interest rate (as a percent) | 4.90% |  |
Superfund Proceedings |  |  |
Regulatory Liabilities [Line Items] |  |  |
Superfund sites | site | 131 |  |

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- Definition The number of sites that are subject to proceedings under federal or state superfund laws brought against the company or against third parties for which the company may have certain indemnification obligations. + References No definition available. + Details
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- Definition Total costs accrued as of the balance sheet date for environmental loss contingencies. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6395460&loc=d3e13647-108346 Reference 3: 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 + Details
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