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EMPLOYEE BENEFIT PLANS EMPLOYEE BENEFIT PLANS (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2023
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Deferred income taxes | $ (15,761) | $ (14,929) | $ 7,812 |
Total recognized in other comprehensive income (loss) | 52,764 | 49,976 | (26,154) |
Accumulated other comprehensive loss, net of tax | $ (54,895) | $ (107,659) | $ (157,635) |
Expected long-term return on plan assets | 6.50% | 7.00% | 7.50% |
Compensation increase rate | 3.60% | 3.60% | 3.70% |
Deferred Compensation Plan Assets | $ 22,900 | $ 36,100 |  |
Retirement Plan [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Benefit Obligation | 422,774 | 567,011 | $ 583,072 |
Service cost | 6,808 | 8,314 | 8,154 |
Interest cost | 17,788 | 16,900 | 18,318 |
Plan participants’ contributions | 0 | 0 |  |
Actuarial gain | (148,988) | (22,792) |  |
Benefits paid | (19,845) | (18,483) |  |
Fair value of plan assets | 321,633 | 413,183 | 379,092 |
Actual return on plan assets (a) | (71,705) | 41,374 |  |
Employer contributions | 0 | 11,200 |  |
Defined Benefit Plan, Plan Assets, Contributions by Plan Participant | 0 | 0 |  |
Defined Benefit Plan, Plan Assets, Benefits Paid | (19,845) | (18,483) |  |
Balance at December 31 | (101,141) | (153,828) |  |
Current liabilities | (5,036) | (5,219) |  |
Noncurrent liabilities | (96,105) | (148,609) |  |
Balance at December 31 | (101,141) | (153,828) |  |
Defined Benefit Plan, Accumulated Benefit Obligation | 408,600 | 541,800 |  |
Expected return on plan assets | (24,469) | (25,109) | (24,964) |
Amortization of prior service cost | 114 | 114 | 114 |
Amortization of net loss | 13,050 | 19,673 | 18,306 |
Net periodic benefit cost (income) | 13,291 | 19,892 | 19,928 |
Net gain (loss) (a) | 47,577 | 34,529 | (31,016) |
Prior service cost | 0 | 0 | 0 |
Other Comprehensive Income, Defined Benefit Plan, Prior Service Cost, Reclassification Adjustment from AOCI, before Tax | 114 | 114 | 114 |
Other Comprehensive Income, Defined Benefit Plan, Gain, Reclassification Adjustment from AOCI, before Tax | 13,050 | 19,673 | 18,306 |
Deferred income taxes | (13,970) | (12,493) | 2,897 |
Total recognized in other comprehensive income (loss) | 46,771 | 41,823 | $ (9,699) |
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax | (260) | (374) |  |
Defined Benefit Plan, Accumulated Other Comprehensive Loss, Loss, before Tax | (70,833) | (131,460) |  |
Accumulated other comprehensive loss | (71,093) | (131,834) |  |
Deferred income taxes | 22,788 | 36,759 |  |
Accumulated other comprehensive loss, net of tax | $ (48,305) | $ (95,075) |  |
Discount rate | 5.75% | 3.25% |  |
Compensation increase rate | 3.60% | 3.60% |  |
Discount Rates - Retirement and Other Postretirement Plans | 3.25% | 3.00% | 3.50% |
Domestic and international equities | 42.00% |  |  |
Long duration fixed income | 30.00% |  |  |
Return-seeking credit | 11.00% |  |  |
Hedge funds | 10.00% |  |  |
Real estate funds | 7.00% |  |  |
Total | 100.00% |  |  |
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months | $ 26,771 |  |  |
Defined Benefit Plan, Expected Future Benefit Payment, Year Two | 27,746 |  |  |
Defined Benefit Plan, Expected Future Benefit Payment, Year Three | 28,728 |  |  |
Defined Benefit Plan, Expected Future Benefit Payment, Year Four | 29,618 |  |  |
Defined Benefit Plan, Expected Future Benefit Payment, Year Five | 30,358 |  |  |
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter | 158,013 |  |  |
Benefits paid | (19,845) | $ (18,483) |  |
Defined Benefit Plan, Expected Future Employer Contributions, Next Twelve Months |  |  |  | $ 7,000
Retirement Plan [Member] | Level 1 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 40 | 42 |  |
Retirement Plan [Member] | Level 2 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Level 3 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Subtotal |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 40 | 42 |  |
Retirement Plan [Member] | Measured at NAV |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 321,593 | 413,141 |  |
Retirement Plan [Member] | Equity securities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 40 | 42 |  |
Retirement Plan [Member] | Equity securities | Level 1 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 40 | 42 |  |
Retirement Plan [Member] | Equity securities | Level 2 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Equity securities | Level 3 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Equity securities | Subtotal |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 40 | 42 |  |
Retirement Plan [Member] | Equity securities | Measured at NAV |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Defined Benefit Plan, Common Collective Trust, Equity Securities |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 99,511 | 166,132 |  |
Retirement Plan [Member] | Defined Benefit Plan, Common Collective Trust, Equity Securities | Level 1 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Defined Benefit Plan, Common Collective Trust, Equity Securities | Level 2 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Defined Benefit Plan, Common Collective Trust, Equity Securities | Level 3 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Defined Benefit Plan, Common Collective Trust, Equity Securities | Subtotal |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Defined Benefit Plan, Common Collective Trust, Equity Securities | Measured at NAV |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 99,511 | 166,132 |  |
Retirement Plan [Member] | Real estate funds |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 26,196 | 30,491 |  |
Retirement Plan [Member] | Real estate funds | Level 1 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Real estate funds | Level 2 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Real estate funds | Level 3 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Real estate funds | Subtotal |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Real estate funds | Measured at NAV |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 26,196 | 30,491 |  |
Retirement Plan [Member] | Government obligations |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 57,328 | 49,444 |  |
Retirement Plan [Member] | Government obligations | Level 1 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Government obligations | Level 2 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Government obligations | Level 3 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Government obligations | Subtotal |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Government obligations | Measured at NAV |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 57,328 | 49,444 |  |
Retirement Plan [Member] | Corporate obligations |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 101,723 | 120,877 |  |
Retirement Plan [Member] | Corporate obligations | Level 1 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Corporate obligations | Level 2 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Corporate obligations | Level 3 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Corporate obligations | Subtotal |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Corporate obligations | Measured at NAV |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 101,723 | 120,877 |  |
Retirement Plan [Member] | Short-term Investments |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 5,576 | 4,243 |  |
Retirement Plan [Member] | Short-term Investments | Level 1 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Short-term Investments | Level 2 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Short-term Investments | Level 3 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Short-term Investments | Subtotal |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Short-term Investments | Measured at NAV |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 5,576 | 4,243 |  |
Retirement Plan [Member] | Other Investments |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 31,259 | 41,954 |  |
Unfunded Capital Commitments | 0 | 0 |  |
Retirement Plan [Member] | Other Investments | Level 1 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Other Investments | Level 2 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Other Investments | Level 3 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Other Investments | Subtotal |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Retirement Plan [Member] | Other Investments | Measured at NAV |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | $ 31,259 | $ 41,954 |  |
Other Postretirement Benefits Plan [Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Defined Benefit Plan Assumed Health Care Cost Trend Rate | 7.00% | 6.50% |  |
Defined Benefit Plan Assumed Ultimate Health Care Cost Trend Rate | 5.00% | 5.00% |  |
Minimum Number Of Years Of Service For Certain Employees To Be Eligible To Participate In Welfare Plans That Provide Postretirement Medical And Life Insurance Benefits | 5 years |  |  |
Benefit Obligation | $ 37,623 | $ 51,027 | $ 54,515 |
Service cost | 307 | 421 | 460 |
Interest cost | 1,480 | 1,454 | 1,771 |
Plan participants’ contributions | 824 | 1,092 |  |
Actuarial gain | (11,554) | (2,496) |  |
Benefits paid | (4,461) | (3,959) |  |
Fair value of plan assets | 16,803 | 24,397 | 20,874 |
Actual return on plan assets (a) | (3,957) | 5,919 |  |
Employer contributions | 0 | 0 |  |
Defined Benefit Plan, Plan Assets, Contributions by Plan Participant | 824 | 1,092 |  |
Defined Benefit Plan, Plan Assets, Benefits Paid | (4,461) | (3,488) |  |
Balance at December 31 | (20,820) | (26,630) |  |
Current liabilities | 0 | 0 |  |
Noncurrent liabilities | (20,820) | (26,630) |  |
Balance at December 31 | (20,820) | (26,630) |  |
Expected return on plan assets | (1,493) | (1,364) | (2,894) |
Amortization of prior service cost | 0 | 0 | 0 |
Amortization of net loss | 1,932 | 3,692 | 5 |
Net periodic benefit cost (income) | 2,226 | 4,203 | (658) |
Net gain (loss) (a) | 5,629 | 7,052 | (21,453) |
Prior service cost | 0 | 0 | 0 |
Other Comprehensive Income, Defined Benefit Plan, Prior Service Cost, Reclassification Adjustment from AOCI, before Tax | 0 | 0 | 0 |
Other Comprehensive Income, Defined Benefit Plan, Gain, Reclassification Adjustment from AOCI, before Tax | 1,932 | 3,692 | 5 |
Deferred income taxes | (1,739) | (2,471) | 4,933 |
Total recognized in other comprehensive income (loss) | 5,822 | 8,273 | $ (16,515) |
Defined Benefit Plan, Accumulated Other Comprehensive (Income) Loss, Prior Service Cost (Credit), before Tax | 0 | 0 |  |
Defined Benefit Plan, Accumulated Other Comprehensive Loss, Loss, before Tax | (7,255) | (14,815) |  |
Accumulated other comprehensive loss | (7,255) | (14,815) |  |
Deferred income taxes | 2,113 | 3,852 |  |
Accumulated other comprehensive loss, net of tax | $ (5,142) | $ (10,963) |  |
Discount rate | 5.75% | 3.00% |  |
Discount Rates - Retirement and Other Postretirement Plans | 3.00% | 2.75% | 3.50% |
Year that the rate reaches the ultimate trend rate | 2026 | 2025 |  |
Defined Benefit Plan, Expected Future Benefit Payment, Next Twelve Months | $ 3,293 |  |  |
Defined Benefit Plan, Expected Future Benefit Payment, Year Two | 3,230 |  |  |
Defined Benefit Plan, Expected Future Benefit Payment, Year Three | 3,217 |  |  |
Defined Benefit Plan, Expected Future Benefit Payment, Year Four | 3,172 |  |  |
Defined Benefit Plan, Expected Future Benefit Payment, Year Five | 3,092 |  |  |
Defined Benefit Plan, Expected Future Benefit Payment, Five Fiscal Years Thereafter | 14,927 |  |  |
Benefits paid | (4,461) | $ (3,959) |  |
Other Postretirement Benefits Plan [Member] | Level 1 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 16,042 | 23,917 |  |
Other Postretirement Benefits Plan [Member] | Level 2 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 761 | 480 |  |
Other Postretirement Benefits Plan [Member] | Level 3 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Other Postretirement Benefits Plan [Member] | Subtotal |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 16,803 | 24,397 |  |
Other Postretirement Benefits Plan [Member] | Equity securities | Level 1 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 11,906 | 17,953 |  |
Other Postretirement Benefits Plan [Member] | Equity securities | Level 2 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Other Postretirement Benefits Plan [Member] | Equity securities | Level 3 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Other Postretirement Benefits Plan [Member] | Equity securities | Subtotal |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 11,906 | 17,953 |  |
Other Postretirement Benefits Plan [Member] | Money market funds | Level 1 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 2 | 0 |  |
Other Postretirement Benefits Plan [Member] | Money market funds | Level 2 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 761 | 480 |  |
Other Postretirement Benefits Plan [Member] | Money market funds | Level 3 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 | 0 |  |
Other Postretirement Benefits Plan [Member] | Money market funds | Subtotal |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 763 | 480 |  |
Other Postretirement Benefits Plan [Member] | Insurance and group annuity contracts |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Actual return on plan assets (a) |  |  | $ 13,200 |
Other Postretirement Benefits Plan [Member] | Insurance and group annuity contracts | Level 2 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 |  |
Other Postretirement Benefits Plan [Member] | Insurance and group annuity contracts | Level 3 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 0 |  |
Other Postretirement Benefits Plan [Member] | Insurance and group annuity contracts | Subtotal |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets |  | 5,964 |  |
Other Postretirement Benefits Plan [Member] | Municipal Bonds | Level 1 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 4,134 | 5,964 |  |
Other Postretirement Benefits Plan [Member] | Municipal Bonds | Level 2 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 |  |  |
Other Postretirement Benefits Plan [Member] | Municipal Bonds | Level 3 |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 0 |  |  |
Other Postretirement Benefits Plan [Member] | Municipal Bonds | Subtotal |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Fair value of plan assets | 4,134 |  |  |
Supplemental Executive Retirement Plan Investments Included in Other Assets[Member] |  |  |  |
Defined Benefit Plan Disclosure [Line Items] |  |  |  |
Balance at December 31 | $ 91,800 | 111,200 |  |
401(k) Plan [Member] |  |  |  |
Defined Contribution Plan Disclosure [Line Items] |  |  |  |
Percent of employee matched of eligible compensation | 100.00% |  |  |
Percentage of Each Participants Eligible Compensation | 6.00% |  |  |
Contributions made to the Plan | $ 34,700 | $ 32,700 | $ 27,100 |
Profit-sharing contribution [Member] |  |  |  |
Defined Contribution Plan Disclosure [Line Items] |  |  |  |
Percentage of Each Participants Eligible Compensation | 1.00% |  |  |

X
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- Definition Target allocation percentage in hedge fund investments to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position. + References No definition available. + Details
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- Definition Target allocation percentage in return-seeking credit securities to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position. + References No definition available. + Details
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- Definition Target allocation percentage in domestic and international equity securities to total plan assets presented on a weighted-average basis as of the measurement date of the latest statement of financial position. + References No definition available. + Details
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