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Note 19 - Post-retirement Benefits - Amounts in Consolidated Balance Sheets (Details) - Pension Plan [Member] - UNITED KINGDOM - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Present value of defined benefit obligations	$ (148,167)	$ (135,182)
Fair value of plan assets	137,725	123,840
Deficit recognized under non-current liabilities	$ (10,442)	$ (11,342)

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- Definition

Amount of asset (liability), recognized in statement of financial position, for defined benefit pension and other postretirement plans.

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Amount of asset, recognized in statement of financial position, for overfunded defined benefit pension and other postretirement plans.

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