EMPLOYEE BENEFIT PLANS - Present Value of Plan Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Pension Benefits
Employee benefit plans
Fair value of pension plan assets	$ 637,330	$ 810,469	$ 716,794
Other Benefits
Employee benefit plans
Fair value of pension plan assets	144,686	169,436	$ 147,057
Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	637,330	810,469
Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	144,686	169,436
Level 1 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	588	443,620
Level 1 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	33,669	169,436
Level 2 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	0	0
Level 2 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	0	0
Level 3 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	0	0
Level 3 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	0	0
Assets measured at net asset value (NAV) | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	636,742	366,849
Assets measured at net asset value (NAV) | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	111,017	0
Fixed Income | Level 1, 2, and 3 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	588	126,062
Fixed Income | Level 1, 2, and 3 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	18,060	63,713
Fixed Income | Level 1 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	588	126,062
Fixed Income | Level 1 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	18,060	63,713
Fixed Income | Level 2 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	0	0
Fixed Income | Level 2 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	0	0
Fixed Income | Level 3 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	0	0
Fixed Income | Level 3 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	0	0
Domestic Equity: Small/Mid Cap Stocks | Level 1, 2, and 3 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	0	63,379
Domestic Equity: Small/Mid Cap Stocks | Level 1, 2, and 3 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	5,654	0
Domestic Equity: Small/Mid Cap Stocks | Level 1 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	0	63,379
Domestic Equity: Small/Mid Cap Stocks | Level 1 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	5,654	0
Domestic Equity: Small/Mid Cap Stocks | Level 2 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	0	0
Domestic Equity: Small/Mid Cap Stocks | Level 2 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	0	0
Domestic Equity: Small/Mid Cap Stocks | Level 3 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	0	0
Domestic Equity: Small/Mid Cap Stocks | Level 3 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	0	0
Domestic Equity: Large Cap Stocks | Level 1, 2, and 3 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	0	218,868
Domestic Equity: Large Cap Stocks | Level 1, 2, and 3 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	0	105,723
Domestic Equity: Large Cap Stocks | Level 1 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	0	218,868
Domestic Equity: Large Cap Stocks | Level 1 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	0	105,723
Domestic Equity: Large Cap Stocks | Level 2 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	0	0
Domestic Equity: Large Cap Stocks | Level 2 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	0	0
Domestic Equity: Large Cap Stocks | Level 3 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	0	0
Domestic Equity: Large Cap Stocks | Level 3 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	0	0
Non U.S. Equities | Level 1, 2, and 3 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	0	35,311
Non U.S. Equities | Level 1, 2, and 3 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	6,928
Non U.S. Equities | Level 1 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	0	35,311
Non U.S. Equities | Level 1 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	6,928	0
Non U.S. Equities | Level 2 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	0	0
Non U.S. Equities | Level 2 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	0	0
Non U.S. Equities | Level 3 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	0	0
Non U.S. Equities | Level 3 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	0	$ 0
Emerging markets | Level 1, 2, and 3 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	0
Emerging markets | Level 1, 2, and 3 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	3,027
Emerging markets | Level 1 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	0
Emerging markets | Level 1 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	3,027
Emerging markets | Level 2 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	0
Emerging markets | Level 2 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	0
Emerging markets | Level 3 | Fair Value, Recurring | Pension Benefits
Employee benefit plans
Fair value of pension plan assets	0
Emerging markets | Level 3 | Fair Value, Recurring | Other Benefits
Employee benefit plans
Fair value of pension plan assets	$ 0