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EMPLOYEE RETIREMENT PLANS - Schedule of change in benefit obligation and plan assets (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Change in projected benefit obligation |  |  |
Service cost | $ 445 | $ 382 |
Interest cost | 1,754 | 1,487 |
Change in plan assets |  |  |
Benefits paid | (4,300) |  |
Amounts recognized in the consolidated balance sheets consist of: |  |  |
Long-term pension liability | (15,523) | (27,776) |
Amounts recognized in accumulated other comprehensive loss consist of: |  |  |
Net amount recognized | 11,597 | 18,011 | $ 21,955
Plan Assets |  |  |
Change in plan assets |  |  |
Fair value of plan assets, beginning of year | 44,582 |  |
Fair value of plan assets, end of year | 35,927 | 44,582 |
Defined Benefit Pension Plan |  |  |
Change in projected benefit obligation |  |  |
Projected benefit obligation, beginning of year | 52,507 | 56,026 |
Service cost | 445 | 382 |
Interest cost | 1,243 | 1,047 |
Actuarial gain | (12,028) | (2,366) |
Benefits paid | (2,558) | (2,582) |
Projected benefit obligation, end of year | 39,609 | 52,507 |
Change in plan assets |  |  |
Actual return on plan assets | (5,652) | 4,402 |
Administrative expenses | (445) | (382) |
Benefits paid | (2,558) | (2,582) |
Funded status of plan | (3,682) | (7,925) |
Amounts recognized in the consolidated balance sheets consist of: |  |  |
Long-term pension liability | (3,682) | (7,925) |
Net amount recognized | (3,682) | (7,925) |
Amounts recognized in accumulated other comprehensive loss consist of: |  |  |
Accumulated loss, net of income tax benefit of $3,382, $4,331, $672, and $1,976, respectively | 9,629 | 12,328 |
Net amount recognized | 9,629 | 12,328 |
Defined Benefit Pension Plan | Plan Assets |  |  |
Change in plan assets |  |  |
Fair value of plan assets, beginning of year | 44,582 | 43,144 |
Fair value of plan assets, end of year | 35,927 | 44,582 |
Supplemental Pension Plan |  |  |
Change in projected benefit obligation |  |  |
Projected benefit obligation, beginning of year | 20,343 | 21,125 |
Interest cost | 511 | 440 |
Plan settlement | (4,276) |  |
Actuarial gain | (3,864) | (840) |
Benefits paid | (342) | (382) |
Projected benefit obligation, end of year | 12,372 | 20,343 |
Change in plan assets |  |  |
Contributions | 4,618 | 382 |
Benefits paid | (342) | (382) |
Funded status of plan | (12,372) | (20,343) |
Amounts recognized in the consolidated balance sheets consist of: |  |  |
Accrued liabilities - other | (531) | (492) |
Long-term pension liability | (11,841) | (19,851) |
Net amount recognized | (12,372) | (20,343) |
Amounts recognized in accumulated other comprehensive loss consist of: |  |  |
Accumulated loss, net of income tax benefit of $3,382, $4,331, $672, and $1,976, respectively | 1,914 | 5,624 |
Prior service cost net of income tax benefit of $0, $0, $19 and $20, respectively | 54 | 59 |
Net amount recognized | $ 1,968 | $ 5,683 |

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- Definition Amount, after tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI https://asc.fasb.org/extlink&oid=126968391&loc=SL7669686-108580 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Amount, after tax, of accumulated other comprehensive (income) loss for cost (credit) of benefit change attributable to participants' prior service from plan amendment or plan initiation of defined benefit plan, that has not been recognized in net periodic benefit cost (credit). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (j) -URI https://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 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI https://asc.fasb.org/extlink&oid=126968391&loc=SL7669686-108580 + Details
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- Definition Amount of increase (decrease) in plan assets of defined benefit plan from actual return (loss) determined by change in fair value of plan assets adjusted for contributions, benefit payments, and other expenses. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(1) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 + Details
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