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RETIREMENT ANNUITY AND GUARANTEED CONTINUOUS EMPLOYMENT PLANS - Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2025 | Dec. 31, 2024
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U.S pension plans |  |
Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets |  |
Projected benefit obligation | $ 7,132 | $ 7,819
Accumulated benefit obligation | 6,762 | 7,424
Fair value of plan assets | 0 | 0
Non-U.S. pension plans. |  |
Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets |  |
Projected benefit obligation | 52,108 | 50,363
Accumulated benefit obligation | 49,099 | 47,867
Fair value of plan assets | $ 20,188 | $ 18,980

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