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EMPLOYEE BENEFIT PLANS - Amounts Recognized in the Consolidated Balance Sheet (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Pension Benefits |  |
Employee benefit plans |  |
Net amount recognized | $ (60,511) | $ (59,148)
Pension Benefits | Noncurrent assets |  |
Employee benefit plans |  |
Net amount recognized | 17,002 | 0
Pension Benefits | Accrued benefit costs |  |
Employee benefit plans |  |
Net amount recognized | 282 | 104
Pension Benefits | Accrued benefit liability |  |
Employee benefit plans |  |
Net amount recognized | 94,010 | 117,145
Pension Benefits | Regulatory assets (3) |  |
Employee benefit plans |  |
Net amount recognized | 16,779 | 58,101
Pension Benefits | Other regulatory liabilities |  |
Employee benefit plans |  |
Net amount recognized | 0 | 0
Other Benefits |  |
Employee benefit plans |  |
Net amount recognized | (623) | (2,368)
Other Benefits | Noncurrent assets |  |
Employee benefit plans |  |
Net amount recognized | 26,966 | 16,399
Other Benefits | Accrued benefit costs |  |
Employee benefit plans |  |
Net amount recognized | 1,124 | 1,782
Other Benefits | Accrued benefit liability |  |
Employee benefit plans |  |
Net amount recognized | 0 | 0
Other Benefits | Regulatory assets (3) |  |
Employee benefit plans |  |
Net amount recognized | 829 | 1,487
Other Benefits | Other regulatory liabilities |  |
Employee benefit plans |  |
Net amount recognized | $ 27,294 | $ 18,472

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- Definition Amount of asset (liability), recognized in statement of financial position, for defined benefit pension and other postretirement plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=123453770&loc=d3e1703-114919 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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