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EMPLOYEE BENEFIT PLANS - Fair Value of Plan Assets (Details) - Defined benefit pension plan - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	$ 97,252	$ 92,129	$ 113,976
Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member]
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	75,912	5,422
Level 1
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	75,883	5,422
Level 2
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	29
Consumer discretionary | Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member]
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	2,605
Consumer discretionary | Level 1
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	2,605
Consumer durables | Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member]
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	2,088
Consumer durables | Level 1
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	2,088
Energy | Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member]
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	952
Energy | Level 1
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	952
Financials | Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member]
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	4,852
Financials | Level 1
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	4,852
Health Care | Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member]
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	4,296
Health Care | Level 1
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	4,296
Industrials & materials | Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member]
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	4,507
Industrials & materials | Level 1
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	4,507
Information technology & communication | Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member]
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	8,102
Information technology & communication | Level 1
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	8,102
Preferred stocks non-convertible | Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member]
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	37
Preferred stocks non-convertible | Level 1
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	37
Mid-cap stock funds | Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member]
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	11,847
Mid-cap stock funds | Level 1
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	11,847
Small-cap stock funds | Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member]
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	4,007
Small-cap stock funds | Level 1
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	4,007
International stock funds | Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member]
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	7,849
International stock funds | Level 1
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	7,849
Large-cap blend - S&P 500 index | Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member]
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	18,044
Large-cap blend - S&P 500 index | Level 1
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	18,044
International - Developed markets | Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member]
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	3,138
International - Developed markets | Level 1
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	3,138
International - Emerging markets | Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member]
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	1,894
International - Emerging markets | Level 1
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	1,894
Accrued income | Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member]
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	29
Accrued income | Level 2
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	29
Cash And Cash Equivalents | Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member]
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	1,665	5,422
Cash And Cash Equivalents | Level 1
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	1,665	5,422
Equities - United States | Net asset value per share
Employee Benefit Plans
Defined benefit plan, fair value of plan assets		36,259
Equities - United States futures | Net asset value per share
Employee Benefit Plans
Defined benefit plan, fair value of plan assets		(697)
Equities - International developed markets | Net asset value per share
Employee Benefit Plans
Defined benefit plan, fair value of plan assets		14,214
Equities - International developed markets futures | Net asset value per share
Employee Benefit Plans
Defined benefit plan, fair value of plan assets		(1,693)
Equities - International emerging markets | Net asset value per share
Employee Benefit Plans
Defined benefit plan, fair value of plan assets		782
Equities - International emerging markets futures | Net asset value per share
Employee Benefit Plans
Defined benefit plan, fair value of plan assets		3,289
Fixed income - Investment grade | Net asset value per share
Employee Benefit Plans
Defined benefit plan, fair value of plan assets	$ 21,340	13,856
Fixed income - High yield | Net asset value per share
Employee Benefit Plans
Defined benefit plan, fair value of plan assets		156
Fixed income - Futures | Net asset value per share
Employee Benefit Plans
Defined benefit plan, fair value of plan assets		8,590
Alternatives | Net asset value per share
Employee Benefit Plans
Defined benefit plan, fair value of plan assets		$ 11,951

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Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee.

+ References

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