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Note 7 - Components of Working Capital Accounts - Components of Working Capital Accounts (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Work-in-progress |  | $ 181,751 | $ 177,134
Finished goods |  | 26,350 | 32,340
Supplies and other |  | 38,091 | 32,867
Inventory, Net |  | 246,192 | 242,341
Accrued payroll and benefits |  | 176,921 | 146,852
Value appreciation plans(1) | [1] | 4,874 | 9,403
Customer advances |  | 7,149 | 6,397
Other |  | 138,792 | 119,672
Accrued Liabilities, Current |  | $ 327,736 | $ 282,324
[1] | Non-current portion of value appreciation plans of $62,268 is included in Other Liabilities

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