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Note 19 - Post-retirement Benefits - Changes in Present Value of Defined Benefit Obligations (Details) - Pension Plan [Member] - UNITED KINGDOM - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Opening balance	$ (241,808)	$ (261,576)
Current service cost	(357)	(439)	$ (539)
Interest cost	(4,307)	(3,407)	(4,551)
Actuarial gain (loss) on liabilities	81,772	10,967	(26,034)
Exchange differences	23,823	2,378
Benefits paid	5,695	10,269
Ending balance	$ (135,182)	$ (241,808)	$ (261,576)

X

- Definition

Amount of gain (loss) from change in actuarial assumptions which (increases) decreases benefit obligation of defined benefit plan. Assumptions include, but are not limited to, interest, mortality, employee turnover, salary, and temporary deviation from substantive plan.

+ References

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-Publisher FASB
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-SubTopic 20
-Section 50
-Paragraph 1
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Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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Amount of payment to participant of defined benefit plan which decreases benefit obligation. For pension plan, payment includes, but is not limited to, pension benefits and death benefits. For other postretirement plan, payment includes, but is not limited to, prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services.

+ References

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Amount of foreign currency translation gain (loss) which (increases) decreases benefit obligation of defined benefit plan.

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Amount of cost recognized for passage of time related to defined benefit plan.

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