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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, 2022
Dec. 31, 2021
Present value of defined benefit obligations $ (135,182) $ (241,808)
Fair value of plan assets 123,840 212,688
Deficit recognized under non-current liabilities $ (11,342) $ (29,120)